Showing papers on "Gas heater published in 2007"

Heating and sterilizing apparatus and method of using same

Abstract: An apparatus (200, 300, 400) for generating superheated steam capable of reducing or eliminating microorganisms associated with an item (230) includes a gas heater (10) for heating a gas, a steam generator coupled to the gas heater (10) and having a reservoir (216, 304) for supplying water, wherein the heater (10) heats the gas such that when water is combined therewith, a mixture of superheated steam and gas capable of reducing or eliminating microorganisms is discharged from the apparatus (200, 300, 400). The generation of the steam-gas mixture may be done at one atmosphere of pressure and the mixing may be done prior to expelling the fluid from the apparatus (200, 300, 400). The apparatus (400) may be configured as a hand-held device, A method of treating an item (230) for microorganisms includes generating a superheated steam at approximately one atmosphere of pressure, directing a flow of the steam onto the item (230), and reducing or eliminating microorganisms using the steam.

Vacuum-pumping method and apparatus thereof

Abstract: The present invention discloses an evacuation method and its equipment for evacuating sandwich between external barrel and internal barrel of multi-layer heat-insulating container Said evacuation equipment includes first gas-conveying device, it has a gas outlet; first gas heater, its inlet is communicated with gas outlet of first gas-conveying device, its outlet is communicated with gas inlet of said internal barrel; evacuation machine unit, it is communicated with said sandwich; second gas-conveying device, it has a gas outlet; and second gas heater, its inlet is communicated with gas outlet of said second gas-conveying device, and its outlet is communicated with said sandwich

Cold spray equipments and technologies

Abstract: This chapter provides an overview of cold spray equipments and technologies The main elements of the cold spray setup are: the spraying unit consisting of a prechamber and a supersonic nozzle, a powder feeder, a gas heater, a source of a compressed gas, a spraying chamber with a motion system, and a system for monitoring and controlling spray parameters The two technologies presented are—spraying electro-conductive corrosion-resistant coatings, and spraying metal-polymer coatings The Institute of Theoretical and Applied Mechanics of Siberian Branch of the Russian Academy of Sciences (ITAM SB RAS) has developed the technological process and equipment, which allows applying a thin (005–02 mm) but strong layer of copper, nickel, or zinc onto the operating surface of the tip by cold spraying, which eliminates conditions that favor electrochemical corrosion

Process gas filtration

Abstract: The present invention relates to a spray drying system provided with a gas filtering system, which system is intended for use in the pharmaceutical industry for aseptic production of sterile pharmaceutical products or in other industries e.g. production of food, where an intake of sterile air for the drying process is necessary. The spray drying system for providing a particulate material comprises a spray drying chamber (3), after treatment equipment (4, 5) placed downstream of the spray drying chamber and a process gas heater (2) placed upstream in relation to the spray drying chamber (3), wherein an inlet filter (1) capable of removing microorganisms at a temperature below 140 °C, is placed upstream of the process gas heater (2) and that the process gas heater (2) is a non-flaking heater.

Storage water heater

Abstract: To provide a storage water heater capable of increasing thermal efficiency and quickly boiling when tap water is supplied into a hot-water tank. A storage water heater 1 can heat low-temperature water having a high density because hot water in a hot-water tank 10 is led from a lead-in pipe 18 positioned at the bottom of the hot-water tank 10 to a gas heater 51 . Also, a water supply pipe outlet 15 and a lead-in pipe inlet 19 are provided so as to be opposed to each other on the same axis. Therefore, when tap water is supplied from a water supply pipe 14 , the tap water lower in temperature than the hot water in the hot-water tank 10 is preferentially led to the gas heater 51 . With this, hot water at the lowest temperature in the hot-water tank 10 can be selectively heated, thereby increasing thermal efficiency.

Dual heater, on demand water heating unit

Abstract: An instantaneous water heater (100) includes a gas heater (102) in series with an electrical heater (122). A flow sensor (118) indicates to control means (108, 112) the amount of heating energy required, and the control means control the heaters (102, 122) to heat the water accordingly.

Cold water recovery and heating device in gas water heater water outlet pipe

Abstract: The utility model relates to a cold water cycling heating device inside a water outlet pipe on a gas heater, comprising a gas heater, a water inlet pipe, a water outlet pipe and a shower, wherein the water inlet pipe and the water outlet pipe are respectively connected with the corresponding position of the gas heater, also comprising a water reversing pipe, a water reversing pipe water inlet controlling valve, a water reversing pipe water outlet controlling valve and a water pump, wherein one end portion of the water reversing pipe is equipped with the water reversing pipe water inlet controlling valve, and is connected with the water outlet pipe which is near the shower, the other end portion of the water reversing pipe is equipped with a water reversing pipe water outlet controlling valve, and is connected with the water inlet pipe, and the water pump is concatenated with the water reversing pipe. The technical project can effectively saves plenty of water resource with a simple structure, wherein an auto controlling can be realized by the application of electric magnet valve and increasing the controlling of the circuit.

Flue gas heater by evaporative cooling

Abstract: The invention relates to an evaporation and cooling gas heater, comprising original smoke heat exchanger (1) and purified smoke heat exchanger (2), steam dome (3), by which two heat exchangers are connected. At the side of original smoke heat exchanger (1), the quantity of heat of original smoke is transferred to the cycling medium (11) in heat exchanging pipe (6) at original smoke side. The cycling medium (11) is evaporated by heating and formed steam enters in heat exchanging pipe (7) at purified smoke side. In the heat exchanging pipe (7), the quantity of heat of steam is transferred to the purified smoke and the purified smoke is condensed into liquid. Under the effect of gravity, liquid medium returns into the heat exchanging pipe (6) at the original smoke side through steam dome (3). By the cycling, the purpose that the quantity of heat of original is used to heat the purified smoke is realized. Steam even-pressure room (5) at the purified smoke side is connected with vacuum pump (10) outside so as to control the pressure in evaporating and cooling system and the boiling point of cycling medium. The invention can adopt multiple groups of smoke heater in parallel. By controlling the pressure in each heat exchanger, multi-step temperature difference heat exchanger is realized. The invention is provided with no leakage of smoke, strong applicable ability to load variety of mainframe, and no operation consumption.

Analysis on Corresponding Problems of WFGD Flue Gas Wet Emission

Abstract: Currently, GGH(gas gas heater) is widely used in the wet flue gas desulphurization system to increase flue gas temperature of stack outlet. It, however, causes the system to be complicated together with additional operation cost to equip with GGH. To probe into the feasibility of wet stack emission and related issues for flue gas wet emission, numerical simulation technique was adopted to analyze the flow field in the stack and out of the stack (without GGH). The corruption issue, the thermal stress of the stack and the pressure distribution in the stack and lifting height of the flue gas were also calculated and analyzed. According to numerical simulation analysis, special anticorrosive measures should be taken in abating stack corruption escalated by wet stack emission. Wet stack emission will reduce the lifting height of the flue gas, and it's not beneficial to gas diffusion; the momentum of the flue gas (its exit velocity) should be guaranteed to decrease the plume downwash and to promote gas diffusion; each of the emission index of the wet flue gas can meet the requirements for the environmental protection. In conclusion, wet stack emission can reduce the equipment investment and operation cost evidently if designed reasonably and it is absolutely feasible.

Shrink tunnel for shrinking shrink films on packages or packaging units

Abstract: The invention relates to a device for shrinking a shrink film (3) on packages or packaging units (4) using a hot gaseous medium, for example a gaseous medium substantially comprising hot air, having at least one hot gas heater (21) comprising a gas burner (25) for generating the hot gaseous medium, wherein the at least one burner is a porous burner.

Oil gas separater

Abstract: The utility model discloses an oil and gas separator, and relates to a separation technology. The utility model intends to provide the oil and gas separator, transfer pipeline associated gas to gas burner, and ensure normal combustion of burner. The utility model is characterized in that, an oil and gas separator, lower part of oil and gas separator tank is provided with two branch pipes which are connected with oil pipe respectively, oil pipe between branch pipe and two branch pipes is provided with valve, gas fluid mixture pump is arranged on oil pipe at downstream of oil and gas separator, upper part of oil and gas separator tank is provided with air pipe which is connected with gas heater. Top of oil and gas separator tank is provided with liquid level controller which is electrically connected with gas fluid mixture pump. The utility model is used for gas burner that heats crude oil in oil field.

Warmer without scaling

Abstract: The invention discloses a heater without scale, which comprises the following steps: placing the heater in the strong magnetic field or strong electric field; disposing water in the heater in the electric field or magnetic field; making the water lose scale-forming ability temporarily in the heating course; making the heater not form hard scale at inner wall. The case of heater is kinds of coating electric heater of quartz glass tube, stainless steel resistance wire heater, stainless steel coating electric heater, microwave heater, gas heater and solar energy heater to be transmitted by magnetic field and electric field. The invention has simple structure, high safe property and good energy-saving effect without chemical pollution, which can be applied in the scale-proof disposal of mini heater such as drinking machine, boiler, electric heater, gas heater, solar energy heater and so on widely.

Cold spray apparatus

Abstract: A cold spray device is provided to shorten a process and to improve productivity by coating a wide area at high speed through one coating process by installing plural nozzles in one device. A cold spray device(100) is composed of a gas storing unit(10); a gas control unit(20) controlling the supply amount of gas fed from the gas storing unit; a gas heater(30) heating the gas fed from the gas storing unit; plural powder feeders(40) supplying coating powder by receiving the gas supplied from the gas storing unit; a single powder preheater(50) preheating the coating powder fed from each powder feeder; plural mixing chambers(60) mixing the coating powder preheated by the powder preheater and gas heated during passing by the gas heater; a main control unit(70) regulating the distribution of gas and the delivery of coating powder and controlling the powder preheating temperature and gas heating temperature; and plural spray nozzles(80) spraying the coating powder mixed in each mixing chamber, to a base material. The gas heater comprises a housing; plural screw-type gas lines installed in the housing and connected to the gas control unit and each mixing chamber; and a heating unit installed in the housing to perform resistance heating.

Gas fuel engine apparatus

Abstract: PROBLEM TO BE SOLVED: To provide a gas fuel engine apparatus capable of surely preventing generation of condensed water even when using a gas fuel engine as a heat source for reheating gas. SOLUTION: A gas producing apparatus 1 generates the gas with a high moisture content. The gas generated by the gas producing apparatus 1 is cooled in a gas cooler 4 and condensed water of the gas cooled in the gas cooler is separated by a moisture separator 5. A gas heater 6 reheats the gas from which the condensed water is separated. The gas engine 10 is supplied with the gas filtered by a filter 8. A heat source supply means supplies hot water heated by the gas engine 10 to the gas heater 6 as a heat source for heating the gas. A pipe preheat means preheats a gas pipe 9 with hot water heated by the generated gas of the gas producing apparatus 1 before starting of the gas engine 10. COPYRIGHT: (C)2008,JPO&INPIT

Improved valve structure of gas water heater

Abstract: The utility model relates to an improved gas heater valve body structure in particular to a valve body with different inlet and outlet port direction changes which applies related design of gas heater valve body; the valve body mainly comprises two different valve bodies equipped with a valve chamber respectively to hold a proportional valve using magnetic repulsion principle to regulate flow respectively, of which one valve body is equipped with an inlet port for gas while the other is equipped with an outlet port, and a solenoid valve using solenoid to open and close The utility model is characterized in that the two valve bodies can be regulated and the combination direction can be changed by locking and unlocking a connecting component between the two valve bodies; and the directions of the inlet and outlet ports can be changed to match gas pipes with different inlet and outlet ports directions

Internal-combustion engine drive`s waste heat utilizing method, involves loading operating gas heater of hot air engine with dissipated heat of exhaust gas of internal-combustion engine for producing torque

Abstract: The method involves providing an explosion engine and a hot air engine (14), and loading an operating gas heater of the hot air engine with dissipated heat of exhaust gas of an internal-combustion engine (1) for producing torque. The hot air engine is operated according to a stirling engine principle, where the hot air engine forms an unit as an auxiliary engine of the internal-combustion engine.

Flow adjuster of gas water heater

Abstract: A controlling device of water flow applied in the gas heater comprises a water valve body and an electro pneumatic valve, wherein, the water valve is provided with inlet pipe and outlet pipe, of which is/ is not communicated with each other. The utility model also comprises waterflow rotor component and a Hall sensor. The waterflow rotor component is arranged inside the inlet pipe and the Hall sensor is positioned correspondently to the waterflow rotor component on the water valve body which is provided with a plurality of separated housings and bypassing water pipes; the plurality of separated housings is directly communicated with the inlet pipe and is communicated with the outlet pipe and the bypassing pipe through the electro pneumatic valve on the separated housing. The utility model has the advantages of effective realization of automatic detection of water flow, automatic control of water flow, increasing the security and pleasance of using the gas heater and so on. The utility model also has the advantage of automatic bypassing of water (aiming at reducing the temperature rise of the water), therefore, the burn by hot water can be prevented.

Utilization of Domestic Gas Heater Exhaust Energy for Heating Water

Abstract: The worldwide energy demands and its increasing cost in addition to the environmental problems of using the fossil fuels, has made the efficient use of energy inclouding heat recovery strategy in thermal systems. Although many equipments have been developed to re-use some of waste heat in large scales but there is few works on small scale and low grade sourses such as domestic gas heaters. This paper describes a water heating apparatus based on utilization of exhaust energy of domestic gas heater. The device is mounted on the roof, connected to the stack and the hot exhaust flows through its inner gear-shaped tube. The potential of heat recovery of this parallel-flow heat exchanger has been tested for 5.2 and 7.2kW heater powers and different exhaust temperatures in the range of 100-185 0 C. The results indicate; at the desired water temperature 45 0 C, the effective heating power enhances in the range of 290-940W proportional to the exhaust temperature and or gas heater power. The appliance could utilize up to 13% of total heat which is wasted, and it is fit to low grade, domestic gas heaters which are widely used and can supply hot water from low temperature exhaust gas even at 100 0 C. Economical considerationns reveals that the payback time of installation this appliance is 4 years.

Gas Heater Availability Analysis and Consideration of Replacement Gas Heaters by Inline Heaters in the Pressure Reducing Stations of Natural Gas

Abstract: Natural gas is transferred in high pressure by piping system from refiners to city gate stations. For public consumption the gas pressure is reduced in gas pressure reducing stations. The pressure is reduced in regulators and leads to a sudden drop of temperature and consequently the formation of gas hydrates. Preventing hydrate formation, natural gas is heated by passing through water bath gas heaters. In this study, the thermodynamic efficiencies of water bath gas heaters were conducted. The effect of air-fuel ratio and the flow rate of the fuel on the efficiency of this instrument were studied. Also, the variations of efficiencies versus flame temperature have been considered and the optimum points in each state were obtained. From these comparisons, it can be concluded that, first law efficiency is suitable meanwhile second law efficiency is very low. The main reason of low second law efficiency is that high availability generation by fuel causes low enhancement in the availability of natural gas, passed through heaters. Also, one dimensional simulation has been employed to compute temperature distribution numerically in whole of a gas pressure reducing station with water bath gas heaters and with shell and tube heaters (inline heaters). Comparison between these two stations show that the gas pressure reducing station with inline heaters is more appropriate than the one with water bath gas heaters. Finally, water bath gas heaters and inline heaters have been studied economically by utilizing energy flow optimization model, EFOM. It is shown that the inline heaters have less cost of heat generation and they are more economical.Copyright © 2007 by ASME

Liquid or gas heater

Abstract: FIELD: fluid heaters. ^ SUBSTANCE: heater comprises housing made of base and heat insulating wall provided with a burner, heat exchanging module made of axially aligned inner and outer pipes with plug from the side of the burner, combustion passage, inlet and outlet collectors, and chimney. The heat exchanging module has baffles interposed between the inner and outer pipes from both sides of the plug. The baffles form passages for the flow of fluid to be heated. The passages are interconnected. The combustion passage is mounted inside the heat exchanging module. The air duct is defined by the space between the heat exchanging module and heat insulating wall. The valve is mounted from the side of the burner and made for permitting rotation around its axis. The inlet and outlet collectors are connected with the passages of the heat exchanging module from the side of the burner. The passages for fluid to be heated can be in communication through both the opening in the baffles and through additional heat exchanging members mounted in the space of the inner pipe of the heat exchanging module. The outer side of the inner pipe of the heat exchanger is stiffened. The sides of the housing and additional heat exchanging members can be detachable. ^ EFFECT: enhanced efficiency. ^ 7 cl, 5 dwg

Full premixed catalyze side combustion condensing gas water heater

Abstract: A full premix and catalytic side fired condensing type gas heater comprises a controller, a gas control system, a fan, a main heat exchanger assembly, a fume extractor, housing and a water control system. The main technical characteristics are that the gas heater also comprises a mixer communicating to the gas control system, a catalytic burner of catalytic side fired combustor, and a condensing heat exchanger. The mixer and the catalytic burner are communicated to the fan. The utility model has the advantages of effective reduction on the production of the harmful pollutants such as nitric oxides and carbon monoxide from the gas heater, further improvement of the thermal efficiency, easy achievement of the top exhaust mode, no drop of the condensed water on the main heat exchanger and simple structure.

Dehydrating ethanol, especially to convert distillery product into fuel-grade ethanol, by passing ethanol through sintered, granulated zeolite and simultaneously regenerating the zeolite using heated inert gas

Abstract: In the drying of ethanol by (a) passing the ethanol through sintered, granulated zeolite (I) of particle size 1-5 mm and (b) regenerating (I) by removing the accumulated water using heated inert gas, both stages are connected togther, operated continuously and carried out in apparatus for simultaneous drying of ethanol and regeneration of (I). An independent claim is included for apparatus for the process, consisting of a vertical ring (1) of several (I)-containing chambers (2), rotating slowly at 2-10 revolutions per hour. The side walls (3) of the chambers are permeable gratings and the ring of chambers is enclosed in a housing (4), in the lower part of which the liquid ethanol to be dried flows via an inlet opening (5) through the chambers and exits via an outlet opening (6) on the opposite side. The upper part of the chamber is the (I) reactivation region, in which inert carrier gas from a blower is pressed from an inlet pipe (7) through the chambers in countercurrent to the direction of rotation. The gas, with the entrained steam, exits through an outlet pipe (9) and is taken out of the system in a condenser (10), with cooling water inflow and outflow (11, 12), as condensed water (13) and a small amount of residual ethanol (14). In a second gas circuit, driven by a gas blower (15), inert gas still saturated with water vapor and converted into dried form by passage through the chambers is sucked out via a suction pipe (16), heated by a gas heater (17) to 350-400[deg]C (i.e. the temperature required to dry (I)) and fed into the system via an inlet pipe (18). Exothermic heat is extracted from the ethanol in a heat exchanger (19), with coolant inflow and outflow (20, 21), and the associated circulation pump (22) is used simultaneously for regulating the liquid filling height.

Cooling, heating, and hot water supplying system

Abstract: A cooling, heating and hot water supply system is provided, which comprises a gas heater 1 whose outlet pipe is connected with the inlet of a mixing water tank 3, and the outlet pipe of the mixing water tank 3 is connected with one inlet of a double-exchanger fan-coil unit 5. The outlet of the double-exchanger fan-coil unit 5 is tied back to the inlets of the gas heater 1 and the mixing water tank 3. The inlet pipe of a refrigerant exchanger at another end of the double-exchange fan-coil unit 5 is connected with the outlet of a multi-connected direct-cooling type central air condition 6, and outlet of the end is tied back to inlet of the multi-connected direct-cooling type central air condition 6. The system integrated cooling and heating and sanitary hot water supply is accordingly realized by combining and coordinated controlling cooling source, heat source devices; the system has high heat efficiency, good cooling and heating effect and low operation cost and saves energy, occupies less space, saves investment and meets people's requirement and enjoys good share in the market.

Flame monitor alarm for gas combustion

Abstract: PROBLEM TO BE SOLVED: To provide a device which can be easily installed in a gas heater generally used in homes at present and gives an alarm to prevent not only accidents caused by fading-out during gas combustion and a failure to turn off the gas but also gas leakage and a fire during user's leaving the gas heater for a long time for some reason when using the gas heater. SOLUTION: When gas is ignited, infrared rays emitted from a flame are detected by an optical sensor or heat generated from the flame is detected by a temperature sensor to start a clock, and an alarm is given with sounds and light in response to the passage of a set time. When a gas combustion flame is continuously used, a reset switch is depressed to restart the clock each time when the alarm is given, and the alarm is given also when the combustion flame goes out during the progress of the clock. In this manner, a gas combustion flame monitor alarm combines the infrared detection optical sensor or the temperature sensor and the clock to inform the user of a certain time interval and fading-out of the flame by giving the alarm with sounds and light. COPYRIGHT: (C)2007,JPO&INPIT

Connecting apparatus of inlet gas heater and medium cooling device for diesel engine

Abstract: The utility model discloses a connecting equipment for the air intake heater and the intercooler of the diesel. The connecting equipment comprises a tubular main body, a flange interface of the air intake heater which is arranged at one end of the tubular main body and takes a shape of rectangle at the end-face, and an interface of the intercooler which is arranged at the other end of the tubular main body and takes a shape of cylinder. The connecting equipment conveniently makes a connection between the air intake heater and the intercooler by simple structure, and is well in adaptability and low in cost.

Effiency increaser of gas water heater

Abstract: A gas heater efficiency improvement device contains a heating exchanger house body, on both the top and the bottom side of the heating exchanger house body is equipped with an exhaust gas inlet and outlet respectively, inside the heating exchanger house body is equipped with a gas passage constructed by the sinuate water pipe and the outer pipe wall of the pipe and the inner wall of the heating exchanger house body, the water inlet and outlet ends of the said pipe extend out the heating exchanger house and connects with the tap water pipe and the gas heater water inlet respectively, the exhaust gas inlet and outlet is the inlet end and outlet end of the gas passage respectively. The utility model the exhaust gas inlet is suited directly on the gas heater flue port, and the inlet end and the outlet end are connected with the tap water pipe and the water inlet of the gas heater respectively. When in the use, the burned high temperature exhaust gas exchanges the heat with the water flowing inside the water pipe, to increase the temperature of the tap water flowing into the gas heater. The utility model improves the heating efficiency 30% over the prior gas water heater, after the gas heater is installed with the utility model, the efficiency can be increased greatly.

Water heater with shielded outlet and inlet and connecting water-pipe cover

Abstract: The utility model discloses a water heater with a shield water inlet and outlet and the connecting water enclosure. The model contains one to two hood made by the heater outlook design, matched with the heater out-shape, beautified by the design, and enclosing the water inlet and outlet and the connecting pipe, the hood is installed in just position of covering the heater water inlet and outlet and the connecting pipe fully, which is to solve thoroughly the whole outlook problem of the water inlet and outlet and the connecting pipes are explored outside after the heater is installed. The hood is fixed on the out house of the heater and may be fixed on the wall or other objects. The technical solution is not only to fit to the horizontal electric heater but also to be applicable to the vertical heater and the vertical gas heater.

Outdoor gas heater

Abstract: The utility model discloses an outdoor fuel gas heater comprising a supporting seat, on the upper end of which a supporting pipe with a heating portion and a reflecting top plate on its upper end are arranged. The utility model is characterized in that a light is arranged on the heater. With the utility model, the upper end of the supporting pipe can employ the battery unit to provide the light of the electric power source, or can provide a light inside the control portion housing which belongs to the heating portion and is made of apparent material. After the light working, the light blazes down on the round edge of the heater through the control portion housing to light for people. So the utility model has the advantage of saving energy, protecting the environment, safety and simple structure, and the utility model will not be a threat to people's safety.