Showing papers on "Gas heater published in 1979"

Water heater using solar and non-solar energy

Abstract: An apparatus for the preparation of hot water using solar energy and non-solar auxiliary energy. Solar heated water in a reservoir is provided for utilization if it is at least at a desired temperature. If the solar heated water is not sufficiently hot, an auxiliary gas heater is used to heat a second reservoir of water to at least the desired temperature. A thermostatic mixer is capable of supplying solar heated water mixed with auxiliary heated water, or only auxiliary heated water, or only solar heated water for utilization. The non-solar heater is utilized only when necessary.

Exhaust gas analysis in sulfur recovery device by claus process

Abstract: PURPOSE: To enable prompt and continuous analysis of the ratio of hydrogen sulfide and sulfur dioxide by measuring the concentration of sulfur dioxide in the exhaust gas and the concentration of sulfur dioxide obtained through the oxidation of hydrogen sulfide in the exhaust gas. CONSTITUTION: Gas containing H 2 S and combustion air are introduced into a Claus furnace 1 through lines A, B and are mixed inside the said furnace. The mixed gas is inverted to sulfur in the process of passage from a sulfur condenser 2, a reaction gas heater 3 and a Claus reactor 4 and the remaining H 2 S and SO 2 are discharged as tail gas C. A control valve 11 for combustion air is adjusted so that H 2 S and SO 2 contained in the tail gas may be at a ratio of 2:1. The concentration of SO 2 in the exhaust gas is measured by means of a continuous concentration measuring device 7. In the meantime, the H 2 S of the exhaust gas sent of an H 2 S oxidaation device 8 is oxidized by SO 2 and sent to a continuous concentration measuring device 9. An inlet gas control device 10 adjusts the control valve 11 according to the results operated on the basis of values measured by the devices 7, 9. COPYRIGHT: (C)1981,JPO&Japio

Method of collecting energy and its device

Abstract: PURPOSE:To improve turbine efficiency by reducing the temperature at compressor inlet of gas turbine to a very low level, and at the same time, to drive the generator by reusing the LNG which was heat exchanged. CONSTITUTION:Inhaled air of a gas turbine is pressured and cooled through filter 1, fan 2, dehumidifier-coolers 3 and 4, and intensive cooler 5, and is sent to compressor 6 connected with generator 10. Then it is preheated by regenerator 7 and burned by combustor 8 to drive turbine 9. LNG is pumped from LNG tank into the intensive cooler 5 and after heat exchanged, it is sent to antifreezing solution cooler 13 and water cooler 16 to cool both the dehumidifier-coolers 3 and 4. LNG is further sent to gas expansion device 18 via gas heater 17 and drives the generator 19 by rotating said expanding device 18.

Automatically moulding thermoplastic sheets - when preheated between gas heated perforated plates sheet is conveyed to moulding point

Abstract: Thermoplastic sheets are moulded in plant which softens the raw sheet by a hot pressurised gas heater, a crossbeam moving vertically moulds it under pressure, and a device moves the hot sheet from the heater to the pressure moulding point. The raw sheet is placed between two plates of the heater and they have gps. of surface holes, each connected to the hot pressurised gas, the top plate has a device to hold the sheet while it is moved into the moulding posn. and is connected to the movement mechanism which is linked to the beam of the moulding point. Simple construction is esp. suitable for producing large sheets with complicated sections.

Combination flue and vent damper

Abstract: A housing structure with a single pivoted damper member is provided as a replacement for the draft hood associated respectively with the flue outlet and vent pipe inlet in a gas heater system. The normal flue outlet for the gas system connects to a first passage in the housing and the normal overhead vent inlet connects to a second passage in the housing above the first passage. First ends of the passages adjacent to their connections to the flue outlet and vent pipe inlet are closed off and second ends open out in a common plane. Communicating with the second ends is an ambient atmosphere opening so that under conditions where the second ends of the passages are open, proper exhausting of gases passing up through the flue to the vent takes place. The single damper itself is mounted to swing in a manner to close off both passages simultaneously when in a first position and also isolate these passages from the ambient atmosphere inlet. In this first position, heat is retained in the heater as well as the room. When the damper member is swung to a second position, the ends of both passages are simultaneously opened so as to be in communication with each other as well as the ambient atmosphere opening.

Miniature gas heater for processing difficult access surfaces - has long thin tube through which gas is passed to electric heater in front of jet

Abstract: The miniature heater, for heating the surfaces of materials using a stream of hot gas, produces high temp. gas flow directly at regions a few mm in diameter. It may be used in the working channels of endoscopes for the coagulation of body tissues, etc, and for processing plastics material in places of difficult access. The gas flows through an appropriately thin tube of approximate length (and flexible if necessary) to a nozzle at the tube's end. A heating element is located just before the nozzle and is heated by an electric current. The incoming cool gas is used to prevent secondary parts of the heating element from overheating.

Dry distillation of waste and its device

Abstract: PURPOSE:To utilize the sensible heat of high-temperature dry distillation gas at the maximum, to improve the calorific value and yield of fuel gas taken out of the system, and to utilize the produced gas as a fuel source, by effecting the drying and dry distillation separately CONSTITUTION:The waste 12 is directly dried by the dry distillation gas from the dry distillation furnace 1 in the dryen 2 provided independently of the furnace 1 in series and fed to the furnace 1 The dry distillation gas from the dryen 2 is pressureized by a blower, and partly fed to the combustion furnace 5, the rest being fed to the gas heater 4 The gas is scrubbed by the aqueous NaOH 8 in the scrubber 3 to remove noxious gas components and excess steam in the gas by condensation, then burned as a fuel in the furnace 5 to generate high-temperature combustion gas, which gives its heat to the gas heater 4 The total heat is thus absorbed by the air preheater 6 The dry distillation gas heated by the heater 4 is recirculated to the furnace 1 and used as a heat source for dry distillation of waste When the calorific value of the waste is high, the effective excess gas 7 is taken out of the syste

Humidifying atmospheric gas for tempering furnace

Abstract: PURPOSE:To simply and correctly control the relative humidity of an atmospheric gas for tempering band steels, the gas is contacted with warm water temperature is controlled. CONSTITUTION:An atmospheric gas enters a humidifier 12 to obtain moisture and passes through conduit 3 to be sent to each tempering furnace. Within the humidifier 12, warm water is maintained in a pool 13 having a determined water level. Wherein a steam nozzle 15 keeps the water at a predetermined temperature. The warm water is pumped through a circulating pump 16 to a spray nozzle 17 to be sprayed uniformly onto a filler layer 18, where water fully contacts the up-flowing atmospheric gas in liquid-gas relation thereby to provide the gas with an adequate quantity of moisture. The humidified atmospheric gas is demisted by an eliminator 19, overheated by a gas heater 20, conducted through the duct 3 that is heated to a temperature above the gas dew point and distributed to each tempering furnace. In the humidifier 12, the water pool temperature is regulated through a steam control valve 23 by an adjuster 22 in such a manner that a thermometer 21 of the spray nozzle inlet indicates the temperature speficied by a dew point setter 22 thereby to effect the exact control of the humidifier dew point.

Control system for a mobile absorption refrigerating apparatus

Abstract: In a mobile absorption refrigeration system wherein the refrigerator has at least one electric heater and a gas burner, the refrigeration system is connected to a vehicle by way of a separable plug assembly which includes one circuit for supplying electric power to the heater, and a control arrangement disabling the gas heater as long as the electric power source of a towing vehicle is connected to the refrigeration system.

Microwave oven combined with gas heater

Abstract: PURPOSE:To minimize the number of components and reduce the cost, by fitting an ignition circuit to the front of a latch switch for igniting a gas pilot flame while a door is open and also fitting two switches interlocked with the door to the front of a change-over switch. CONSTITUTION:A change-over switch 6 actuats a magnetron oscillator 26 when turned to the NC side and also actuates a solenoid valve 13 of a gas oven when turned to the NO side. A door switch 3 is fitted at the front of the change-over switch 6 on the power side 1, being available both for microwave heating and for gas heating and for their combination to the simplification of the system.

Gas turbine plant

Abstract: PURPOSE:To improve thermal efficiency and specific output by supplying a part of a furnace gas whose dust removal has been performed already, as a fuel, while supplying the remainder for a compressor driving turbine CONSTITUTION:Furnace gas discharged from two furnaces 8 is disposed of a dust removal operation by means of a dust catcher 9, Benturi-scrubber 10, and its temperature is decreased to about 50 deg C Then, after the furnace top pressure is maintained as a constant by a furnace top pressure control valve 11, the gas is collected by a pipe 20, and a part is led to a furnace gas compressor 6 via a flow control valve 14, while the remainder is led to a turbine 7 via a gas heater 15 The turbine 7 and the compressor 6 is connected through a transmission unit 18, and the furnace gas and air for combustion, leaving the compressor 6 and another air compressor 1 are preheated at a heat exchanger 2, and thereafter are led to a burner 3 By means of the combustion gas generated by the burner 3, the turbine 4 is driven and a generator 5 is put under operation