Showing papers on "Gas heater published in 2015"

Heat transfer characteristics of supercritical CO2 flow in metal foam tubes

Abstract: To report an improved supercritical CO2 (SCO2) Rankine cycle by optimizing the heat transfer performance of the gas heater, experimental work was conducted to investigate the forced convective heat transfer and pressure drop performance of SCO2 heated in tubes partially filled with metal foam by interring copper fibers on the inner wall. The effects of operating conditions (8300

Gas heater safety inspection device

Abstract: The utility model relates to a gas heater safety inspection device contains controller, CO and CO2 gas sensor, speaker, window motor, the controller contains control chip, connecting circuit and battery, the high threshold and the gas heater that are equipped with CO and CO2 in the control chip amount to the operating time limit value at every turn, the switch of controller with gas heater link to each other, set up CO and CO2 gas sensor and buzzer all around and be connected it and controller electricity in the bathroom, be connected it and the headstock gear of bathroom window at the other window motor that sets up of bathroom window, be connected window motor and controller electricity again, in case CO that CO and CO2 gas sensor detected and/or CO2 value are greater than and set for threshold value or gas heater and amount to operating time and be greater than the settlement limit value at every turn, the controller starts the buzzer promptly and reports to the police and open the bathroom window through the window motor simultaneously and ventilate. The utility model discloses gas heater has positive guard action to the safe handling.

Flue gas processing system and flue gas processing method capable of enabling low-low temperature electrostatic precipitation to be combined with water pollination type GGH (Gas Gas Heater)

Abstract: The invention relates to a flue gas processing system and a flue gas processing method capable of enabling low-low temperature electrostatic precipitation to be combined with a water pollination type GGH (Gas Gas Heater). At present, a flue gas processing system and a flue gas processing method which are capable of meeting a new emission standard and preventing the corrosion of a chimney are not provided. The flue gas processing system disclosed by the invention is characterized by comprising a terminal controller, a steam regulating valve, a steam auxiliary heater, a water inlet pipe, a water return pipe, a steam inlet pipe and a steam outlet pipe, wherein the steam auxiliary heater is arranged on the water inlet pipe, the steam inlet pipe and the steam outlet pipe are both connected to the steam auxiliary heater, and a flue gas temperature detector and the steam regulating valve are electrically connected with the terminal controller. The flue gas processing method disclosed by the invention is characterized by comprising the following steps of carrying out heat exchange between high-temperature flue gas in a flue gas duct and a low-temperature working medium in a flue gas heat recycling device when the high-temperature flue gas in the flue gas duct flows through the flue gas recycling device, and carrying out heat exchange between a high-temperature working medium and low-temperature purified flue gas which is output through a desulfurizing tower and a demister in the flue gas duct after the low-temperature working medium is heated into the high-temperature working medium. According to the flue gas processing system and the flue gas processing method, disclosed by the invention, the new emission standard is met, and the corrosion of the chimney is prevented.

Design and Development of a TEG Cogenerator Device Integrated into a Self-Standing Natural Combustion Gas Stove

Abstract: Heating by gas combustion, by use of different types of systems and plants, is widespread in residential and industrial environments. One example is the gas stove, the heat-radiating unit of which operates autonomously with a local gas feed and, possibly, electricity for an optional fan convector. A thermoelectric generator (TEG) can be integrated within this type of autonomous gas heater for local production of electric power, to support electrical auxiliaries, where desired, without the need for any connection to the electricity grid. This approach can lead to easier installation and operation and increases overall efficiency. A new prototype of an autonomous gas heater has been implemented by integration of a TEG device of simple and robust design, easily operated by the end user. A small amount of heat is withdrawn and converted into electricity by the TEG. This enables self-sustaining operation and, moreover, powers new ancillary functions (e.g. fan convector) without extra electrical requirements and no need for an electrical connection.

Fuel storage and supply system for LNG (liquefied natural gas) power ship

Abstract: The utility model relates to a fuel storage and supply system for an LNG (liquefied natural gas) power ship. The fuel storage and supply system comprises two LNG storage tanks, two buffer tanks, a high-pressure pump, a high-pressure vaporizer, a low-pressure vaporizer, a cold energy utilization device, a gas heater, a reliquefaction device, an auxiliary boiler and an exhaust boiler, wherein the two LNG storage tanks are cascaded and transport LNG to the first buffer tank and the low-pressure vaporizer via an LNG immersed pump inside the LNG storage tank; the first buffer tank is connected with a cold energy utilization heat exchanger via the high-pressure pump, and the cold energy utilization heat exchanger and the cold energy utilization device form a coolant circulating system; the cold energy utilization heat exchanger is connected with the high-pressure vaporizer; the high-pressure vaporizer is connected with the second buffer tank; the low-pressure vaporizer is connected with a dual-fuel diesel generator; and the second buffer tank is connected with a dual-fuel main diesel. By the fuel storage and supply system, the problems of high pressure of BOG gas in the LNG storage tank during long-time mooring and ship repair and methane discharge caused by high pressure of the storage tank are solved.

Gas-liquid heat exchanger heat transfer coefficient determination apparatus

Abstract: The invention discloses a gas-liquid heat exchanger heat transfer coefficient determination apparatus. The apparatus comprises a blower fan, a regulating valve, a gas flowmeter, two reducing crosses, a gas heater, a gas-liquid heat exchanger, tee or the like which are connected by pipelines, thereby forming a channel for gas phase fluid. A liquid inlet end of the gas-liquid heat exchanger is connected with a small end of one of the two reducing crosses, the big end of the reducing cross is connected with the gas-liquid heat exchanger, the small end of the reducing cross is connected with a fluid flowmeter; a liquid outlet end of the gas-liquid heat exchanger is equipped with the other reducing cross, and the big end of the reducing cross is connected with the gas-liquid heat exchanger, thereby forming a channel of liquid phase fluid. A gas inlet and a gas outlet of the heat exchanger are provided with temperature sensors and pressure sensors, and the liquid inlet and the liquid outlet of the heat exchanger are provided with temperature sensors. The apparatus provided by the invention is used for heat transfer coefficient test of the gas-liquid heat exchanger, thereby obtaining data needed for high efficiency heat transfer. Gas side fluid circulation and utilization is used, and a small amount of supplied gas is used for adjusting by a vent nozzle adjusting valve, thereby reducing energy loss during the experiment process.

Gas heater of self -interacting general mood parameter

Abstract: The utility model discloses a gas heater of self -interacting general mood parameter, include: main control unit, with fan and the gas proportional valve that main control unit is connected, its characterized in that, the last baroceptor that still is connected with of main control unit, the baroceptor is the speed regulation of fan and the aperture regulation of gas proportional valve provides control signal. Compared with the prior art, the utility model discloses can be according to corresponding atmospheric pressure automatic adjustment gas heater's fan rotational speed and gas proportional valve aperture, solved manual adjustment's inaccurate, inconvenient defect, effectively improve the water heater in high altitude localities anti -wind pressure energy power, environmental suitability is strong.

Cogeneration type gas heater

Abstract: The utility model discloses a cogeneration type gas heater, including a heat exchanger, a combustor that is used for heating the heat exchanger, a thermoelectric generation chip, use the electric installation and for the rechargeable battery with the electric installation power supply, the output and the battery of said thermoelectric generation chip are electrically connected, include also that one is used for transmitting the thermal heat conduction piece that the combustor during operation produced, and the hot junction of thermoelectric generation chip is hugged closely to the one end of the heat conduction piece, and the other end extends to flame burning department of combustor. The thermoelectric generation chip can absorb the heat that the combustor during operation produced and turn into the electric energy with it be the battery charge, has prolonged the live time of battery, need not frequently to change the battery, and make full use of the waste heat of combustor be used for generating electricity, energy-concerving and environment-protective, the heat conduction piece can directly absorb the heat of the flame department of combustor and conduct to the hot junction of thermoelectric generation chip, effectively improves the generating efficiency of thermoelectric generation chip, can satisfy the power consumption demand of multi-purpose electric installation.

Flue gas waste heat energy level utilizes system

Abstract: The utility model provides a flue gas waste heat energy level utilizes system, includes gas baffle, flue division board, tubular air preheater, gas gas heater, fan heater, auxiliary heater, expansion tank, high pressure feed water heater, pipeline, low pressure feed water heater, oxygen-eliminating device, water pump, install each section heat exchanger of corresponding high temperature flue gas, medium temperature flue gas, low temperature flue gas, low low temperature flue gas in the flue additional, the heat exchanger of high temperature flue gas and medium temperature flue gas, with flue of high temperature flue bypass play of air preheater entry, former flue becomes first side, and the flue that the bypass goes out is called second and inclines, first and second both sides account for its exhaust gas volumn 40-60% respectively, install the high temperature heat exchanger additional in the second side flue simultaneously, and are parallelly connected with high pressure feed water heater through the condensate water pipeline, high temperature heat exchanger rear installs medium temperature heat exchanger additional in the second side flue, and is parallelly connected with one-level low pressure feed water heater through the condensate water pipeline, the low temperature flue gas heat exchanger and the heat exchanger of low temperature flue gas install respectively in the flue of the front and back of dust remover.

Constant temperature hot water unit

Abstract: The utility model discloses a constant temperature hot water unit, including gas heater, circulating water pump, main control unit and pipeline, the pipeline is including the end of intaking, play water end (W. E. ) and gas entrance point, the end of intaking of pipeline links to each other through the end of intaking of first ball valve with circulating water pump, entrance point with electronic proportion three -way control valve behind circulating water pump's the play water end (W. E. ) connection check valve is connected, an exit end of electronic proportion three -way control valve pass through the second ball valve with gas heater's the end of intaking is connected, another exit end of electronic proportion three -way control valve is connected through the play water end (W. E. ) of third ball valve with gas heater, main control unit respectively with electronic proportion three -way control valve and circulating water pump electricity are connected. The utility model discloses an electronic proportion three -way control valve and circulating water pump control temperature cooperate a plurality of ball valves control hot water flow direction, providing the hydrothermal while of constant temperature, reduce the energy consumption, noise abatement, and compact structure, easily installation and maintenance.

High -efficient desulfurization, denitration, dust removal and water conservation integration process systems

Abstract: The utility model relates to a high -efficient desulfurization, denitration, dust removal and water conservation integration process systems. This system including reacting the storehouse, sets up the aeration pipe in the reaction storehouse, reacts the storehouse and sprays the storehouse intercommunication, sprays above -mentioned gas collection storehouse, the defroster of setting gradually in storehouse, spray the storehouse through gas gas heater with advance the mouth and be connected, spray the storehouse and be connected through spraying back the liquid pipe and spraying the circulation oxidation pond, spray the circulation oxidation pond and link to each other through spraying the circulating pump and spraying the storehouse, reaction storehouse and gas collection storehouse are passed through uptake shaft and are communicate, the gas collection storehouse is connected through clear solution back flow and clear solution case. The utility model discloses having reduced desulfurizing tower entry gas temperature, having made the desulfurizing tower evaporation water yield reduce, exhaust gas temperature is low, and wet flue gas comdenstion water reduces, has practiced thrift the water consumption, to spray desulfurization process with tympanic bulla desulfurization process ingenious combination be in the same place. Desulfurization efficiency has reached more than 99%, and the flue gas sulfur content is less than 15 mgNm3.

Gas heater of built -in buffer tank

Abstract: The utility model provides a gas heater of built -in buffer tank, includes heat exchanger, inlet tube and outlet pipe, inlet tube, outlet pipe are connected respectively at the heat exchanger both ends, its characterized in that: it also includes bypass pipe, circulating water pump and buffer tank, and the bypass pipe connects in parallel with heat exchanger, and inlet tube, outlet pipe are connected respectively to the both ends of bypass pipe, and circulating water pump installs on the inlet tube, and circulating water pump's input is close to bypass pipe one side, and circulating water pump's output is close to heat exchanger one side, on the outlet pipe of buffer tank series connection between heat exchanger and bypass pipe. The utility model discloses a circulating water pump, the bypass pipe cold water in with the closed circulation pipeline carries out circulation heating, reaches the effect of the no cold water of start, simultaneously, by buffer tank that establish ties to store hot water on the outlet pipe, can the neutralization heat hydrophone in start -up course, working process with set for the great water of the temperature difference in temperature to improve the constant temperature performance of complete machine, improve user's bathing comfort level.

Natural gas liquefaction dehydration demercuration device

Abstract: The utility model relates to a gas treatment technical field discloses a natural gas liquefaction dehydration demercuration device, separate the compression unit including molecular sieve dehydration column, regeneration gas heater, demercuration tower, regeneration gas cooling unit and regeneration gas, the top and the bottom of molecular sieve dehydration column are equipped with air inlet and gas outlet respectively, the air inlet of regeneration gas heater and the air inlet of demercuration tower all with the bottom gas outlet of molecular sieve dehydration column intercommunication, the gas outlet of regeneration gas heater also with the bottom gas outlet intercommunication of molecular sieve dehydration column, regeneration gas cooling unit communicates with the top air inlet of molecular sieve dehydration column, compression unit and regeneration gas cooling unit intercommunication are separated to the regeneration gas. The utility model discloses combine dehydration, demercuration, cooling, separation sum -squeezing in an organic whole of the wet purge gas of natural gas liquefaction in -process production, had simple process, control convenience and operation steady advantage.

Novel enclosed multi-tower natural gas molecular sieve dehydrating apparatus

Abstract: The invention relates to a novel enclosed multi-tower natural gas molecular sieve dehydrating apparatus, which is characterized by comprising a refrigerating machine, a gas-liquid separation device, four drying towers, a heat exchanger, a regeneration gas heater, an air cooler, several control valves and several pipelines. The refrigerating machine is employed for precooling the raw material natural gas and regeneration gas backflow, certain dehydration support is undertook, the heating and cooling power of the drying tower at a dehydration period are relative small; the regeneration gas separator and a preposition gas-liquid separation device are combined, the process flow of a whole apparatus is compact; the regeneration gas wet natural gas and the regeneration gas backflow are performed with waste heat recovery through the heat exchanger, thermal efficiency of the regeneration gas heater can be effectively increased; three towers are employed for adsorption, regeneration with one tower and refrigerated switching program simultaneously, large scale processing capability is realized, when the system is in a low load or faults, a three-tower or a two-tower dehydrating mode can be switched, continuous operation capability of the apparatus is increased, operation elasticity and operation reliability of the apparatus are increased, and the dehydrating apparatus can be widely used for dehydrating natural gas.

Fire electric heat water system

Abstract: The utility model discloses a fire electric heat water system, include: gas heater, gas heater advances water piping connection to delivery pipe, at least one constant temperature equipment, every constant temperature equipment among at least one constant temperature equipment have first inlet tube and a second inlet tube, firstly advance water piping connection to gas heater's outlet pipe, and the second advances water piping connection to delivery pipe, every constant temperature equipment's play water piping connection to the corresponding first water end (W. E. ) of using, be used for detecting a temperature sensor of the temperature in the delivery pipe, the temperature of maximum temperature and water temperature control gas heater delivery pipe in of central controller in according to every constant temperature equipment's settlement temperature outlet pipe to control every constant temperature equipment respectively according to the temperature of gas heater's outlet pipe and every constant temperature equipment's settlement temperature. This system can provide the hot water of steady temperature and need not the manual regulation according to the user's request voluntarily to different constant temperature equipment can set for different leaving water temperatures.

Power supply for electric arc gas heater

Abstract: This invention concerns power supplies suitable for electric arc gas heaters such a plasma torches. It more particularly relates to the dimensioning of the inductor in the switched-mode DC to DC converter used for feeding the torch. The invention concerns in particular a DC power supply for driving a non-transferred electric arc gas heater, comprising: an AC to DC rectifier providing a potential U 0 ; a DC to DC switching converter having a switching frequency f s; a current control loop having a latency Formula (I); and, a ballast inductor having an inductance L; characterized in that inductance L is such that Formula (II) and Formula (III). Such a design ensures the stability of the current control loop, while also ensuring a sufficient amount of current ripple to spread out the erosion zone on the electrodes of the torch.

Gas heater and use its water route pipe network

Abstract: The utility model provides a gas heater and use its water route pipe network, includes heat exchanger, water tank, inlet tube and outlet pipe, the water tank is established ties and to be installed on the outlet pipe, and inlet tube, outlet pipe are connected respectively at the heat exchanger both ends, and main technical characteristics lies in still including circulating water pump, the check valve of intaking, return water inlet tube, and circulating water pump installs on the inlet tube, and installs the water pump check valve at this circulating water pump's head -end or low reaches end, be connected with a connecting pipe on the inlet tube, this connecting pipe and circulating water pump and the parallelly connected setting of water pump check valve, the check valve of intaking is adorned on the connecting pipe, return water inlet tube one end is for reserving the mouth, and the other end is connected with the connecting pipe, and connects at the low reaches of the check valve of intaking end, the utility model discloses a with the cooperation of outside water route, when the circulating water pump during operation, the hydroenergy in outlet pipe, the water tank flows into the heat exchanger heating again and stores in the water tank to effectively reduce the cold water in the water pipe, ensure that the user starts shooting to use the hot water of suitable temperature

Liquid metal cooling pool type reactor multifunctional in-reactor heat separation system

Abstract: The invention discloses a liquid metal cooling pool type reactor multifunctional in-reactor heat separation system including a gas storage tank, a gas filter, a gas heater, a gas input pipe, a gas inlet valve, an inner heat clapboard, a middle heat clapboard, an outer heat clapboard, an inner heat clapboard fixed steel plate, an outer heat clapboard fixed steel plate, a gas outlet pipe, an exhaust valve, a gas extractor and pipes and valves for connection of devices Hot and cold pool spacing and auxiliary heating function of a liquid metal in a main container can be realized in a liquid metal cooling pool type reactor, the system is simple in structure, and easy to start, the spacing and auxiliary heating function can be realized in one system, the utilization rate of the reactor system is improved, the complexity of the reactor system is reduced, and the economy and security of the reactor can be effectively improved

Lever liquid adding device for liquefied natural gas immersed pump

Abstract: The utility model provides a lever liquid adding device for a liquefied natural gas immersed pump, and belongs to the liquefied natural gas liquid adding technology. The difficulties in the prior art are solved. The lever liquid adding device is formed by connecting of a liquefied natural gas low-temperature immersed pump and a low-temperature pump pool, an unloading pressurizer, a pipe valve line, a lever pump base, a horizontal-type storing tank, a releasing gas heater, a liquid adding machine, a liquefied natural gas tank car and a PLC control system. The horizontal-type storing tank is fixed on the lever pump base, and is connected with the unloading pressurizer and the releasing gas heater through the pipe valve line. The releasing gas heater is connected with the liquefied natural gas low-temperature immersed pump and the lower-temperature pump pool and the liquid adding machine through the pipe valve line. The PLC control system is arranged on the pipe valve line. The liquefied natural gas tank car is connected with an outlet pipe line.

Gas utensil gas consumption real time monitoring and bad news gas total amount monitored control system

Abstract: The utility model relates to a monitored control system, in particular to gas utensil gas consumption real time monitoring and bad news gas total amount monitored control system. Include: the temperature probe of intaking, a water temperature probe, a rivers sensor, a heat exchanger, a display screen, a central controller, central controller is according to intaking temperature probe, the signal value that goes out the detection of water temperature probe and rivers sensor combines heat exchanger's self rate of heat exchange, utilize gas heater thermal efficiency formula counter push away to calculate reach real -time gas consumption, central controller is through showing that screen display shows real -time gas consumption, the gas total flow, the cold water temperature, hot water temperature and discharge. The utility model discloses can save cost greatly, can simplify the mounting process simultaneously, reduce the gas connector to it leaks the potential safety hazard to reduce the gas.

System for testing permeability of unloading coal and rock mass in mining process and application thereof

Abstract: The invention relates to a system for testing permeability of unloading coal and rock mass in mining process and application thereof, belonging to the field of geotechnical engineering. The system comprises an air source tank, a first reducing valve, a second reducing valve, a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a vacuum pump, a gas pressure stabilization and heating control device, an MTS confining pressure chamber with a test piece, a first pressure gage, a second pressure gage, a first flowmeter and a second flowmeter, wherein the gas pressure stabilization and heating control device comprises a gas booster pump, a gas heating controller, a first gas heater, a second gas heater, a high-pressure gas storage reaction kettle, an air compressor, a pressure gage, a sixth valve and a seventh valve. According to the system, the permeability of unloading coal and rock mass in the mining process can be accurately tested, and the system is suitable for coal bed development.

Water control device and gas heater

Abstract: The utility model discloses a gas heater, it includes combustor, heat exchanger, water inlet, delivery port and controller, heat exchanger connects the water inlet with between the delivery port, the combustor is used for the heating water in the heat exchanger, this gas heater still include main line and by -pass line, main line and by -pass line parallel connection are in heat exchanger with between the water inlet, be equipped with water pump and first water flow sensor on the main line, the last second water flow sensor that is equipped with of by -pass line, water pump, first water flow sensor, second water flow sensor and combustor all with the controller electricity is connected. The utility model discloses a water control device has adopted the main line and the by -pass line of parallelly connected setting to built -in water pump is through three -way valve switching water route, in order to realize preheating freely switching of mode and bathroom mode. Guarantee that gas heater does not have cold water to discharge when using.

Open promptly and use type environmental protection gas heater promptly

Abstract: The utility model provides an open promptly and use type environmental protection gas heater promptly effectively reduces harmful gas emission and hot water and opens usefulness promptly, installs simple and conveniently. Open promptly and use type environmental protection gas heater promptly installs the return water and connects on the casing, the one end that the return water connects is connected with heat exchange line's the end of intaking, and water connectors's one end is connected with heat exchange line's play water end (W. E. ), the last circulating water pump that is provided with of heat exchange line, and the water supply connector is passed through water intake pipe and is connected in heat exchange line, the other end that the return water connects is connected through preheating circulation pipeline with water connectors's the other end, is provided with the check valve on preheating circulation pipeline, and the water spot setting is on preheating circulation pipeline for the water heater. The utility model discloses a catalyst device has reduced harmful gas's emission, realizes the environmental protection requirement, and the inside rivers of water heater form one set of confined from circulation system for the real realization of water heater is opened promptly and is gone out hot water promptly, solves the not homothermal problem of gas heater, avoids the waste of water resource, and installs simple and conveniently.

Heat exchanger and use its gas heater

Abstract: The utility model provides a heat exchanger and use its gas heater, it includes the heat exchanger front bezel, the heat exchanger back plate, heat exchanger left end board, heat exchanger right end board, heat exchanger left side apron, heat exchanger right side apron, the heat transfer straight tube, the heat exchanger fin, the heat exchanger fin is installed on the heat transfer straight tube,the heat transfer straight tube is fixed on heat exchanger left end board and heat exchanger right end board, the heat exchanger front bezel, the heat exchanger back plate respectively with heat exchanger left end board, heat exchanger right end board connects, main technical characteristics is the heat exchanger front bezel, be equipped with the turn -ups on the heat exchanger back plate, the turn -ups is equipped with location platform or locating hole, heat exchanger left end board, be equipped with and fix a position corresponding locating hole of platform or locating hole or location platform on the heat exchanger right end board, heat exchanger left end board welds integratively with the left apron of heat exchanger, heat exchanger right end board welds integratively with the right apron of heat exchanger Have the characteristics such as life that can improve the heat exchanger and use its gas heater complete machine effectively

Regenerative gas-turbine expansion unit

Abstract: FIELD: power industry.SUBSTANCE: regenerative gas-turbine expansion unit of a compressor station of main gas lines with gas-turbine gas pumping units provided with recovery heat carrier heaters includes the main high pressure gas line, a high pressure gas heater, a turbo-expander with an adjustable nozzle assembly, a compressor, a combustion chamber, a gas turbine, an electric generator, a fuel gas heater, a control, a high pressure fuel gas line, a high pressure fuel gas separator, an intermediate pressure fuel gas heater, a regenerative air heater, with that, the intermediate pressure fuel gas heater and the high pressure fuel gas line are used for heating of fuel gas of all combustion chambers of gas turbine units of a compressor station, with that, the turbo-expander rotor is connected via a common shaft to the compressor rotor; the gas turbine rotor is connected to the electric generator rotor, and recovery heat carrier heaters are connected via pipelines to the high pressure fuel gas heater and to the intermediate pressure fuel gas heater.EFFECT: invention allows increasing compressor station economy.2 dwg

System takes place for sled dress nitrogen gas

Abstract: The utility model discloses a system takes place for sled dress nitrogen gas. System takes place for sled dress nitrogen gas is including the air compressor, air buffer tank, air cleaner, gas heater, membrane separator and the nitrogen buffer tank that connect gradually, nitrogen buffer tank's gas outlet department is equipped with the nitrogen gas pipeline, the nitrogen gas pipeline includes first branch road and second branch road, first branch road and gaseous turbocharging system's entry linkage, gaseous turbocharging system's exit is equipped with high -pressure nitrogen gas pipe, the tip of second branch road with aerify interface connection, the second props up and is equipped with high -pressure nitrogen gas branch road on the road, high pressure nitrogen gas branch road and high -pressure nitrogen gas union coupling, be equipped with high -pressure nitrogen gas output tube on the high pressure nitrogen gas pipe. The utility model discloses can satisfy multiple pressure and the dew point requirement of user to output nitrogen gas, the reasonable compactness of equipment layout, it is smooth and easy to guarantee that the equipment of making nitrogen keeps warm and electrical apparatus ventilates, can normally work under adverse circumstances.

Method for recycling high-order heat of reaction gas of methanol-to-propylene device

Abstract: The invention relates to a method for recycling high-order heat of reaction gas of a methanol-to-propylene device. According to the method, the problems that the quantity of equipment as well as the energy consumption are relatively high in the prior art are mainly solved. According to the technical scheme, high-temperature methanol-to-propylene mixed reaction gas at an exit of a methanol-to-propylene reactor enters a methanol-to-propylene mixed reaction gas flue (1) and is subjected to gradual heat exchange with a DME reactor exit reaction gas heater (10), an ultrahigh-pressure steam generator (3), a first methanol vaporizer (2) and a second methanol vaporizer (6) which are sequentially arranged in the flue (1) to recover heat, and the low-temperature methanol-to-propylene mixed reaction gas is discharged out of the flue (1) after the heat exchange, so that the problems are well solved. The method can be applied to the methanol-to-propylene device.