CN2119600U - Air heater using gaseous fuel - Google Patents
Air heater using gaseous fuel Download PDFInfo
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- CN2119600U CN2119600U CN 92213263 CN92213263U CN2119600U CN 2119600 U CN2119600 U CN 2119600U CN 92213263 CN92213263 CN 92213263 CN 92213263 U CN92213263 U CN 92213263U CN 2119600 U CN2119600 U CN 2119600U
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Abstract
The utility model relates to an air heater using gaseous fuel with pulse combustion, which is composed of a gaseous fuel leadin device, a combustion-aid air leadin device, a combustion chamber, a lighter, a fume extractor, a heating blower, a cleaning blower, an electric control box and a machine shell, wherein, the mixing part of the combustion chamber is hermetically connected with two air inlet valves and the lighter. The fume extractor is formed by the order and hermetical connection of a tail pipe, a fume decoupling chamber, a secondary heat exchanger and a fume exhaust pipe, wherein, the tail pipe and the combustion part of the combustion chamber are hermetically connected. Gaseous fuel can adopt natural gas and liquid petroleum gas. The utility model has the advantages of high thermal efficiency, low pollution and low energy consumption, and is used for centrally heating.
Description
It is the ventilation and heating device of heating agent with the gaseous fuel that the utility model relates to a kind of, particularly a kind of pulse-combustion gas warm-air machine.
Warm-air drier is a kind of ventilation and heating combined unit, generally is made up of burner, ventilation blower, air heat exchanger etc., is mainly used in central heating.At present, warm-air drier mainly contains steam warm-air drier, hot water warm-air drier, the dual-purpose warm-air drier of steam and hot water, and its burner is a boiler, adopts common continuous burning mode to burn, and heating agent is provided.Boiler is the highest a kind of of the thermal efficiency in the existing burner, calculates and can reach about 90% with low heat value.But boiler form and production technology all have been in the stage of ripeness, and its thermal efficiency is difficult to improve, and the carbon monoxide that contains in its discharging waste gas, oxynitrides etc. also are difficult to reduce to the pollution that atmosphere, environment cause.Pulse-combustion has outstanding advantages such as combustion heat intensity height, big, the low pollution of heat transfer coefficient and low energy consumption.Internal combustion engine produces power by pulse-combustion exactly.Since the eighties, in the face of the situation that the energy day by day reduces, people attempt the pulse-combustion mode is used for heating, in the hope of obtaining the higher thermal efficiency and reducing environmental pollution.
The purpose of this utility model is, replaces the ordinary combustion mode in the pulse-combustion mode, designs a kind of high thermal efficiency, oligosaprobic gas warm-air machine.
The utility model is a kind of pulse-combustion gas warm-air machine of direct smoke evacuation formula, the required combustion air that promptly burns is taken from outdoor, flue gas also drains into outdoor, its composition comprises the combustion gas gatherer, the combustion air gatherer, the combustion chamber, igniter, fume extractor, the heating blower fan, the cleaning blower fan, electric control box, all be assembled in the casing, it is characterized in that: the combustion gas gatherer is by magnetic valve, combustion gas decoupling chamber, the combustion gas intake valve is formed, the combustion air gatherer is by air inlet, air decoupling chamber, the air inlet valve is formed, the combustion chamber is made up of mixing portion and combustion parts, mixing portion and two intake valves and igniter are tightly connected, fume extractor is by tail pipe, flue gas decoupling chamber, the secondary heat exchange device, the smoke exhaust pipe composition that is tightly connected successively, tail pipe and combustion chambers burn partly are tightly connected.
With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in detail.
Fig. 1 is the utility model overall structure schematic diagram.
Fig. 2 is the utility model combustion gas or combustion air intake valve structural representation.
As shown in Figure 1, combustion gas gatherer of the present utility model is made up of magnetic valve 7, combustion gas decoupling chamber 8, combustion gas intake valve 9, the combustion air gatherer is made up of air inlet 5, air decoupling chamber 6, air inlet valve 11, combustion chamber 4 is made up of mixing portion and combustion parts, mixing portion and intake valve 9,11 and igniter 16 are tightly connected, fume extractor is tightly connected successively by tail pipe 3, flue gas decoupling chamber 2, secondary heat exchange device 14, smoke exhaust pipe 13 and forms, and tail pipe 3 is tightly connected with combustion chamber 4 combustion parts.The effect of decoupling chamber is that pressure pulse in the combustion chamber and upstream portion are separated, with the buffering vibration.Attach noise reduction, heat-barrier material at casing 1 inwall and combustion air decoupling chamber 6 inwalls, to reduce noise and to prevent that heat from distributing.Smoke evacuation decoupling chamber 2 adopts airflow design, and heat exchange area is big, and flow resistance is little.In the combustion chamber 4 and secondary heat exchange device 14 outsides fin 17 is housed, not only strengthen the heat exchange effect, and the heating air washed away with lower resistance burn the combustion outdoor face.In tail pipe 3 and smoke evacuation decoupling chamber 2 junctions a toot device 18 altogether has been installed, has been played vibration-absorbing and silencing, extension fixture service life.Heating blower fan 15 is installed in secondary heat exchange device 14 belows, provides warm braw to the heating space.Cleaning blower fan 10 is contained in combustion air decoupling chamber 6 tops, purges before start and after the shutdown.Electric control box 12 is contained in the below of casing 1, and control circuit is wherein controlled the work of open and close, spark plug 16 igniting and the cleaning blower fan 10 of magnetic valve 7.
The utility model pulse-combustion process is as follows:
1, combustion gas and combustion air enter the combustion chamber, and portion is mixed within it,
2, begin circulation, combustion gas that the electricity consumption spark ignition has mixed and air, and blast produce pulse for the first time,
3, the normal pressure that produces of burning is closed combustion gas intake valve and air inlet valve, and the flue gas behind the forced burning discharges after entering tail pipe,
4, flue gas leaves the inertia generation negative pressure of combustion chamber, and this negative pressure makes two INOs, and combustion gas and air enter the combustion chamber again,
5, in this moment, the high temperature that tail pipe has is lighted the mist that newly enters once more, produces pulse for the second time, so close combustion gas and two intake valves of air once more, flue gas is discharged from tail pipe,
6, repeat above-mentioned 4,5 processes later on, the continuous impulse that the generation per second is 60 to 70 times enters the normal burst burning.
As shown in Figure 2, combustion gas or combustion air intake valve are made up of coaxial gap plate 22, valve 23, pad 24, cover plate 25 and nut 21, screw 27, cover plate for sealing pad 20, cover screw 26 in the valve seat 19 among the embodiment, have corresponding respectively and pore 29,28 that do not overlap between gap plate 22 and valve 23 and gap plate 22 and the cover plate 25, valve 23 is enclosed within on the pad 24, can move forward and backward.The intake valve course of work is as follows: during air inlet, combustion gas or air are pressed the arrow direction, the gap enters valve seat around pore 28,29 on cover plate, valve, gap plate and the gap plate, promptly entering the combustion chamber mixes, behind pulse detonation, the normal pressure that produces is pushed valve 23 to cover plate 25 1 sides, pore on the cover plate 28 is blocked, just closed intake valve, when flue gas was discharged tail pipe, the negative pressure of generation was pushed valve 23 to gap plate 22 1 sides, opens cover board hole 28, again air inlet repeats pulse-combustion next time.Adjust the thickness of pad 24, can obtain optimum condition.
The utility model combustion gas can be selected natural gas, liquefied petroleum gas or artificial coal gas, have the characteristics such as combustion intensity height, the high and low energy consumption of the thermal efficiency, low pollution, calculate by low heat value, its thermal efficiency can reach 93～96%, exhaust gas temperature＜50 ℃, water vapour in the flue gas is discharged with the condensed water state, has reduced significantly exhaust gas heat loss's loss of the inadequacy burning for chemistry mechanics reason of becoming estranged, the amount of nitrogen oxides＜50PPM in the flue gas.
Claims (5)
1, the pulse-combustion gas warm-air machine, form and comprise the combustion gas gatherer, the combustion air gatherer, the combustion chamber, igniter, fume extractor, the heating blower fan, the cleaning blower fan, electric control box, all be assembled in the casing, it is characterized in that the combustion gas gatherer is by magnetic valve, combustion gas decoupling chamber, the combustion gas intake valve is formed, the combustion air gatherer is by air inlet, air decoupling chamber, the air inlet valve is formed, the combustion chamber is made up of mixing portion and combustion parts, mixing portion and two intake valves and igniter are tightly connected, fume extractor is by tail pipe, flue gas decoupling chamber, the secondary heat exchange device, the smoke exhaust pipe composition that is tightly connected successively, tail pipe and combustion chambers burn partly are tightly connected.
2, warm-air drier according to claim 1, it is characterized in that combustion gas or combustion air intake valve be made up of gap plate coaxial in the valve seat, valve, pad, cover plate and nut, screw, cover plate for sealing pad, cover screw, have corresponding respectively and pore that do not overlap between gap plate and valve and gap plate and the cover plate, valve is enclosed within on the pad, can move forward and backward.
3, warm-air drier according to claim 1 is characterized in that casing inner wall and air decoupling chamber inwall attach noise reduction, heat-barrier material.
4, warm-air drier according to claim 1 is characterized in that combustion chamber and secondary heat exchange device outside be equipped with fin.
5, warm-air drier according to claim 1 is characterized in that in the tail pipe and the decoupling chamber junction of discharging fume a toot device altogether being installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92213263 CN2119600U (en) | 1992-02-24 | 1992-02-24 | Air heater using gaseous fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92213263 CN2119600U (en) | 1992-02-24 | 1992-02-24 | Air heater using gaseous fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2119600U true CN2119600U (en) | 1992-10-21 |
Family
ID=4958021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92213263 Granted CN2119600U (en) | 1992-02-24 | 1992-02-24 | Air heater using gaseous fuel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2119600U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079135C (en) * | 1997-07-14 | 2002-02-13 | 王大可 | Disk type pulse combustion turbine |
| CN103017248A (en) * | 2012-12-13 | 2013-04-03 | 山东天力干燥股份有限公司 | Fuel gas infrared radiation heating device based on pulse combustion |
-
1992
- 1992-02-24 CN CN 92213263 patent/CN2119600U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079135C (en) * | 1997-07-14 | 2002-02-13 | 王大可 | Disk type pulse combustion turbine |
| CN103017248A (en) * | 2012-12-13 | 2013-04-03 | 山东天力干燥股份有限公司 | Fuel gas infrared radiation heating device based on pulse combustion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned | ||
| CF01 | Termination of patent right due to non-payment of annual fee |