CN86207261U - Domestic efficient gas warmer - Google Patents

Abstract

The utility model belongs to a domestic warmer. In order to change the out-of-date actuality that at present, most families use the small furnace to warm in the form of burning the coal, a domestic efficient gas warmer is designed to fit for the requirement of the modernization construction for the city. The domestic efficient gas warmer comprises a burning changer, a radiator and an additional heating load device; the domestic efficient gas warmer is also provided with a heat exchanger with high heat efficiency, and the heat efficiency can reach to 90%. When the rated load of the heat exchanger is 4000 large calorie per hour, the domestic efficient gas warmer can be used in the housing units with 1-3 living rooms. The utility model has the advantages of high safety and reliability, simple operation and no pollution and can also provide the heat bathe water and the domestic water. Therefore, the living condition can be improved, and the environment can be beautified; after the test, the domestic efficient gas warmer has favorable operation effect and is welcomed by the users warmly.

Description

Domestic efficient gas warmer

The utility model belongs to the heating installation of family expenses.

The family of developed country heating at present has several patterns such as infrared heating, hot blast heating, hot water heating, and its energy is electricity, combustion gas or other liquid fuel nothing more than.The heating of the present most of family of China is many burns the coal heating with small furnace, and this is the heating mode that a kind of poor efficiency falls behind, and is characterized in dirty, two tired, three slow, four expenses.Therefore, along with growth in the living standard, broad masses aspect heating an urgent demand with a kind of economy, mode convenient and that realize easily change this less, slowly, poor, the backwardness of taking.If do central heating, build steam power plant, heat distribution pipe network is then invested greatly to solve, the time is long to do large-sized boiler; Generally use the electric energy heating, though be development trend, can't resolve in a short time, the generating capacity of China still can not satisfy the requirement of commercial power, the problem of warming oneself still more at present; With liquid fuel, underground heat, solar energy, nuclear energy equal energy source also all is pattern preferably, but because state's financial capacity is limit, overextension of capital construction can not solve family's problem of warming oneself in a short time energetically.Learn through investigation, foreign except that the pattern of central heating or the heating of employing electric energy, employing combustion type heating pattern, its power scale is also all bigger.

The objective of the invention is for adapting to the urban modernization requirements on Construction, the heating mode of the backwardness of the present small furnace of China for a change, suitable family particularly is fit to modular housing condition, adopting advanced, economic fuel gas is the energy, designs a kind of small scale, combustion type warmer that the thermal efficiency is high.It is except that solving the heating problem and have the function of bathing water and domestic water supply concurrently.Tianjin government intends allowing the acceptable heating pattern of this masses enter civil buildings in the enforcement period of the seventh five-year plan.

The design's domestic gas formula warmer, being particularly suitable for modular house uses, it is by the heat exchanger that has the gas fuel burning device, radiating tube and parasitic thermal load device are formed, its heat exchanger is by burner, finned fire tube and fire tube top are the smoke space of cuboid, above smoke space, be provided with the flue of getting rid of burnt gas, and wrap in around fire tube and the smoke space the thin-walled water jacket and in smoke space and the spiral element that communicates with water jacket water receptacle constituted, on water receptacle, be provided with delivery port, water return outlet and discharge outlet.Its parasitic thermal load device is constituted by the container of heated water and through the spiral tube radiator in the container.

The design's heat exchanger and parasitic thermal load device all are sheet material, the tubing that adopts common metal, make through the punching press welding.For improving the thermal efficiency, increasing heating surface area, more seize heat, in fire tube, be provided with 16 rectangular fins.Be to improve the thermal efficiency, around water jacket and the top be provided with the heat insulation layer of mineral wool felt, with the heat loss of reduction water jacket.

The design's burner has adopted the band automatic ignitor of Japanese product, the valve of flame-out automatic safe protective and general cast iron kitchen range.Can light a fire automatically when this valve starts, can control after the igniting duration and degree of heating size, can keep continuous burning, after under cas fortuit, putting out a fire, its safety device automatic-closing valve, air tight with assurance safety under incombustible situation.It is normal to burn during work, and flame burns to fire tube and smoke space, and fire tube is the one-level heat-absorbent surface, absorbs a large amount of heat energy of burning.Helix tube is the secondary heat-absorbent surface, and the inwall of water jacket is three grades of heat-absorbent surfaces.Through designing and calculating, the summation of the heat-absorbent surface of this heat exchanger reaches 1 square metre, and the thermal efficiency of this heat exchanger reaches 90% after measured, the heat exchanger that surpasses common pattern of the same race both at home and abroad far away.Be provided with exhaust uptake above smoke space, make smoke space slightly become negative pressure, therefore, the energy discharging waste gas is avoided air pollution within doors during burning, also makes the burning oxygen supply abundant simultaneously.The delivery port of water jacket and water return outlet communicate with service pipe, and heated water reduces to rise because of severe in the water jacket, and to radiator or parasitic thermal load device, the heat radiation back descends because of severe increases, and gets back to water jacket through water return outlet, with this Natural Circulation through delivery port.Through the examination, during operate as normal per hour the water of circular flow can reach 100～120 kg, the design's rated load be 4000 kilocalories/time, after measured, the temperature difference of delivery port and water return outlet is 30 ℃, the temperature of waste discharge feed channel institute smoke discharging is about 100 ℃.Heated water is emitted heat through the radiator of parasitic thermal load device, can promptly water for bathing or domestic water be heated to more than 40 ℃.This warmer can be made the expansion of series of products design according to user's needs, if increase load capacity, can be used on the shop, the office of small-sized office or small-sized hotel, restaurant.

Use the warmer of this domestic gas formula warmer and external pattern of the same race and domestic small coal to compare and embody following superiority: 1. the design's rated load be 4000 kilocalories/time heating load, can be used in the modular house use that 1～3 room is particularly suitable for 2 rooms, be fit to a family one cover, both considered energy-conservation and cost not high, separated many acceptance easily.2. thermal efficiency height, because the reasonable in design of water jacket, the proportioning of smoke space and exhaust uptake is appropriate, just makes the thermal efficiency reach 90%, it is higher than the warmer of foreign same type.External small gas warmer rated load is higher, generally 8000 kilocalories/time more than, do not note energy-conservationly again, the general thermal efficiency is all below 80%.3. easy to operate, safe.Start valve and light a fire automatically, close automatically during fire extinguishing, no gas leakage does not have the danger of catching fire and exploding.This heat exchanger does not enter the room, is contained in the ventilation in kitchen or passageway, and no anoxic is to the threat of the person, so can guarantee safe operation.Use this warmer can avoid the heavy work of soil of small coal fortune coal fully.4. waste gas is discharged from flue, does not pollute room air, has beautified environment, has improved living condition.5. materials are simple, all are common irons, need not non-ferrous metal.6. perfect, the good looking appearance of structure, technology is simple, cost is low, every about 250 yuan.

Description of drawings: Fig. 1, Fig. 2 are the structural representations of the heat exchanger of combustion type warmer.Fig. 2 is the side view of Fig. 1.Wherein: the valve of automatic igniting of (1)-band and automatic safe protective device; (2)-burner; (3)-finned fire tube; (4)-spiral water pipe; (5)-water jacket (6)-heat insulation layer; (7)-waste discharge gas flue; (8)-delivery port; (9)-water return outlet; (10)-the water jacket discharge outlet; (11)-fuel gas inlet.

Fig. 3 is the sectional view of fire tube.Wherein: (5)-water jacket; (13)-fin.

Fig. 4 is a domestic gas formula warmer work schematic diagram.Wherein: (14)-heat exchanger; (15)-outlet pipe; (16)-radiator; (17)-the parasitic thermal load device; (18)-water inlet of parasitic thermal load device; (19)-shower nozzle; (20)-the domestic water mouth of pipe; (21)-return pipe; (22)-water tank; (23)-gas pipeline.

Embodiment: the design's rated load be 4000 kilocalories/time, the appearance and size of heat exchanger is 745 * 245 * 445 millimeters.The water inlet pipe and water outlet pipe specification is 1 ", water jacket is that 2 millimeters steel plates are welded into, the specification of the spiral element in the smoke space is 3/4 ".

Claims (4)

1, a kind of combustion type warmer of family expenses, being particularly suitable for modular house uses, it is by the heat exchanger that has the imflammable gas burner, radiator and additional thermic load device are formed, the heat exchanger that it is characterized in that it is the burner by combustion gas, finned fire tube and fire tube top are the smoke space of cuboid, above this space, be provided with the flue of getting rid of burnt gas, and wrap in around fire tube and the smoke space the thin-walled water jacket and in smoke space and the spiral element that communicates with water jacket water receptacle constituted, on water receptacle, be provided with delivery port, water return outlet, discharge outlet, its additional thermic load device are constituted by the container of heated water and through the spiral tube radiator in the container.

2,, it is characterized in that its heat exchanger and parasitic thermal load device all are to adopt the sheet material of common metal and tubing to make through the punching press welding according to the described warmer of claim 1.

3,, it is characterized in that being provided with 16 rectangular fins in fire tube inside for improving the thermal efficiency, increasing heating surface area according to the described warmer of claim 1.

4, according to the described warmer of claim 1, it is characterized in that for improve the thermal efficiency around water pipe and the top be provided with the heat insulation layer of mineral wool felt.

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