CN2186375Y - Pulsating burning hot-water, steam mini-boiler - Google Patents
Pulsating burning hot-water, steam mini-boiler Download PDFInfo
- Publication number
- CN2186375Y CN2186375Y CN 94205613 CN94205613U CN2186375Y CN 2186375 Y CN2186375 Y CN 2186375Y CN 94205613 CN94205613 CN 94205613 CN 94205613 U CN94205613 U CN 94205613U CN 2186375 Y CN2186375 Y CN 2186375Y
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- boiler
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- water
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- chamber
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Abstract
The utility model relates to a pulsating combustion type miniature boiler for hot water and steam, comprising a box body, wherein, a control device and a tube hole are arranged on the box body. A boiler body, an air inlet valve chamber, a purging fan chamber, an intake muffler and an exhaust muffler are arranged in the box body. A pulsating burner is arranged in the boiler body, and the pulsating burner is formed by the method that the pulsating burner is connected with one end of a tail tube by a combustion chamber, and the other end of the tail tube is connected with an air exhaust decoupler. Space between the pulsating burner and the boiler body forms a water jacket. The whole pulsating burner is submerged in water in the water jacket, which is favorable for the heat transfer toward water. When the utility model works, air and combustion enter the combustion chamber to be mixed, fuel is ignited by a sparking plug, and smoke gas after combustion is discharged out of rooms via the tail tube.
Description
The utility model is intermittent combustion formula hot water, steam miniature boiler, belongs to hot water and vaporific field of boilers.
At present the gaseous fuel that uses or hot water, the steam boiler of liquid fuel all belong to the stable state combustion type, and though be blowing-type or injection type all belong to the open type combustion system.In order to reach, need the burner hearth and the very big heat exchanger of area of big volume than the high burning efficiency and the thermal efficiency; Need meticulous arrangement mixing, atomizing (to liquid fuel), combustion process; Need bigger excess air coefficient.These boilers all need to use chimney, utilize buoyancy that flue gas is discharged, thereby heat energy slatterns in atmosphere with fume emission greatly, so that its thermal efficiency has only 60-70%.For improving the thermal efficiency, some boilers of employing new technology adopt air-introduced machine and install energy-saving heat exchanger and reduce exhaust gas temperature, the thermal efficiency is brought up to 80%, but increased a large amount of consumption of secondary energy sources electric energy.(in fact, the domestic gas-fired water heating boiler that does not have maturation at present basically just changes the fire grate of coal-fired tea-bath furnace into the gaseous fuel burner).
Because efficiency of combustion is low, CO(carbon monoxide in the existing boiler smoke) content is all at the hundreds of ppm order of magnitude, and with considerable flue dust generation, particularly the boiler of liquid fuel is even more serious.In the big volume burner hearth of stable state combustion, flue gas is long in the boiler thorax high-temperature region time of staying, thereby the NOx(nitrogen oxide) the pollutant production rate is higher.
From textural, existing boiler furnace volume is big, needs the large tracts of land heat exchanger, and burning and heat exchange are that branch is finished respectively at two parts, thereby boiler volume is big, and weight is big, consumes great deal of raw materials and cost of manufacture.
The purpose of this utility model is: at present based on the shortcoming of the hot-water boiler of the gaseous fuel of stable state combustion and liquid fuel, advanced pulsating Combustion Technology is applied to hot water and steam boiler, replace used conventional stable state combustion mode, make efficiency of combustion and high hot water, the steam boiler of the thermal efficiency, energy savings significantly, reduce urban air pollution, the protection atmospheric environment; Dwindle boiler volume, save raw materials consumption and save usage space.
The utility model is a kind of intermittent combustion formula hot water, steam miniature boiler, include a square box (28), computer automatic control device (30) is housed on the panel of square box (28), in square box (28), is equipped with: boiler body (27), air intlet valve chamber (16), purging motor chamber (17), intake muffler (1), and exhaust silencer (10).
Pulsating combusting device (6) is housed in boiler body (27), this pulsating combusting device (6) is by cylindrical combustion chamber (7), connect four spiral tail pipes (8) (this tail pipe also can be, two or many), the other end of tail pipe (8) connects a cylindrical air exhaust decoupling device (9) and constitutes.Have nozzle (25), spray orifice (26) on combustion chamber (7), this nozzle (25), spray orifice (26) connect fuel check valve (13) and air check valve (3) by pipeline respectively by boiler body.Form water jacket (12) in the space between this pulsating combusting device (6) and the boiler body (27), this water jacket (12) is used for adorning water and uses, after filling water in the water jacket (12), whole pulsating combusting device (6) then is immersed in the water, be provided with water inlet (20) on the boiler body (27) of water jacket (12) bottom, this water inlet (20) is connected or is connected with level controling mechanism or is connected with flow control valve (level controling mechanism and flow control valve are not shown in the figures) with water pump (21) by pipeline.
When this water inlet (20) and water pump (21) when being connected, the hot-water boiler that the utility model then can be used as heating.When water inlet (20) when being connected with level controling mechanism, the utility model can be as the drinking water boiler.When water inlet (20) is connected with flow control valve, and add when joining steamdrum at casing (28), the utility model can be as steam boiler.Be that connection water pump or connection level controling mechanism or connection traffic control valve all are water jacket (12) water fillings that is used for to boiler body (27).The boiler body (27) on water jacket (12) top is provided with delivery port (19), and the water after the heating is mouthful outflow thus, and thermometric sense head (5) is housed on the delivery port (19), is used to measure the temperature of water.Exhaust decoupling device (9) in the pulsating combusting device (6) links to each other with an end of exhaust silencer (10) by boiler body (27), the other end of exhaust silencer (10) connects blast pipe (11), blast pipe (11) stretches to outdoor by the pore (35) on the casing (28), outdoor blast pipe (23) connects an end of intake muffler (1) by the pore (32) on the casing (28), the other end of intake muffler (1) connects purging motor chamber (17), purging motor (2) is housed in the purging motor chamber (17), purging motor chamber (17) connects air intlet valve chamber (16), air check valve (3) is housed in the air intlet valve chamber (16), this air check valve (3) connects the combustion chamber (7) of pulsating combusting device (6) by boiler body (27), also connect simultaneously and detect check valve (18), detect check valve (18) and connect pressure switch (22).On casing (28), have the pore (31) that passes for water inlet pipe, the pore (33) that outlet pipe passes, the pore (35) that pore (34) that the pore that blast pipe passes (32), cartridge pass and blast pipe pass.Fuel inlet (24) connects an end of fuel decoupling device (14) through magnetic valve (15), the other end of fuel decoupling device (14) connects the combustion chamber (7) of pulsating combusting device (6) by boiler body (27) through fuel check valve (13), the spark plug (4) by boiler body (27) is equipped with on the top of this combustion chamber (7), and this spark plug (4) is used for fuel (combustion gas or the combustion liquid) sparking that is input in the combustion chamber (7) is lighted.
The course of work of the present utility model is: air enters fan house (17) through intake muffler (1), then pass through purging motor (2) and enter air intlet valve chamber (16), enter combustion chamber (7) via air check valve (3) and air spray orifice (26) again.Fuel enters combustion chamber (7) through magnetic valve (15), fuel decoupling device (14), fuel check valve (13) and fuel burner (25) by automaton control and hits mutually with air-spray and mix, form flammable mixture, automatically light a fire by the spark plug (4) that the high-pressure electronic igniter that is contained in combustion chamber (7) top central authorities drives, the heat release of burning of some burning mixt is closed after spark plug (4) igniting voluntarily.Whether normal for judging igniting, detect pulsating combusting device (6) internal pressure fluctuating signal by being contained in air check valve (3) detection check valve (18) afterwards, the interior aero operating pressure of pulsating combusting device (6) is different from the stable state combustion device, it is to be sinuous pulsation to change, draw this unique pressure signal by detecting check valve (18), and detection pusher dynamic pressure switch (22) closure in addition, notice computer automatic control device (30) igniting is normal.Flame-out phenomenon takes place in contingency in running, fluctuation pressure disappears immediately in the combustion chamber, and pressure switch this moment (22) disconnects at once, and notice computer automatic control device (30) is flame-out to be taken place, automaton (30) cuts off magnetic valve (15), fuel shutoff supply immediately.Whether flame was normally set up when this method not only can be verified igniting, can distinguish whether fluctuation pressure is normally set up simultaneously again, was again safety quick blowout protection measure.
When igniting normal fuel during, cut off acoustics coupling between combustion chamber (7) internal pressure and the fuel conduit by fuel decoupling device (14), to guarantee the stability of fuel flow rate in the combustion chamber internal combustion.Gas fume after burning is discharged through tail pipe (8) and exhaust decoupling device (9).With exhaust decoupling device (9) intake muffler (1) and exhaust silencer (10) are housed respectively afterwards before in air check valve (3), excessive to suppress combustion noise.
The utility model is when being used as heating boiler, connect the hot water pipeline water pump of using for recirculated water (21) outside (returning) mouth of a river (20) in advancing of water jacket (12) bottom, in water jacket (12), the flow through outer wall of burner (5) of working-medium water, obtain heat, flow out the radiator of sending into heat rooms from the delivery port (19) at the top of water jacket (12), its backwater is drawn back and is sent in the water jacket (12) through water pump (21).At delivery port (19) or enter (going back to) mouth of a river (20) thermometric sense head (5) is housed, water temperature signal is sent into computer automatic control device (30), the control heating temperature.Because whole pulsating combusting device (6) all is immersed in the water of water jacket (12), therefore the wall of whole pulsating combusting device (6) itself has constituted the heat-transfer surface of heat exchanger again, this heat-transfer surface is used for water is heated, this pulsating combusting device (6) collection burner and heat exchanger are one, outstanding heat transfer property by intermittent combustion, make most heats pass to water, when the flue gas that produces in the combustion process is discharged by exhaust decoupling device (9), temperature has dropped to below 100 ℃, makes the overall thermal efficiency that the utlity model has about 95%.
The utlity model has following advantage:
1. has outstanding energy-efficient performance.Work under the different capacity operating mode, its overall thermal efficiency reaches 90-95%, compare with the 60-70% efficient of the general gas-fired water heating boiler of using always, but fuel saving 15-32%.
2. have from row function.Can discharge combustion product voluntarily, need not use chimney emission, it can suck the air of burning usefulness voluntarily simultaneously, does not need air blast, saves the power consumption of blast apparatus and operation.
3. little to the pollution of air.On-the-spot test shows that the content of CO, NOx far below existing stable state combustion boiler, and does not have flue dust all less than 50ppm in the utility model flue gas.
4. small volume structure is simple.The hot-water boiler of 50-75KW has only 600 * 700 * 1500mm, saves material, saves usage space.
5. automaticity height.Computer automatic control device has replaced having reduced personnel's work time cost with manually on duty.
The utlity model has following accompanying drawing:
Fig. 1. be the utility model structural representation.
Fig. 2. be the utility model combustion chamber sectional schematic diagram.
Fig. 3. be the utility model outline drawing.
Number in the figure is as follows:
1. intake muffler 2. purging motors 3. air check valve
4. spark plug 5. thermometric senses 6. pulsating combusting device
7. combustion chamber 8. tail pipes 9. exhaust decoupling devices
10. exhaust silencer 11. blast pipes 12. water jackets
13. fuel check valve 14. fuel decoupling devices 15. magnetic valves
16. check valve is detected in air intlet valve chamber purging motor chambers 18. 17.
19. delivery port 20. advances (returning) mouth of a river 21. water pumps
22. pressure switch 23. blast pipes 24. fuel inlets
25. nozzle 26. spray orifices 27. boiler bodies
28. casing 30. control device
31,32,33,34,35. pores
Embodiment of the present utility model as shown in drawings, this device has a square box (28), boiler body (27) is housed, air intlet valve chamber (16), purging motor chamber (17), intake muffler (1), exhaust silencer (10) in square box (28).Computer automatic control device (30) is housed on the panel of casing (28).The vertical seat of casing (28) is on ground level, receive blast pipe (11) and blast pipe (23) outdoor respectively with engineering plastics pipe during installation, simultaneously fuel inlet (24) is received fuel (combustion gas or combustion liquid) supply line, and will enter (going back to) mouth of a river (20), delivery port (19) is connected respectively in the circulation line that heats.
Pulsating combusting device (6) whole erection is fixed in the water jacket (12) within the boiler body (27).Boiler body (27) outside is coated with the acoustical and thermal material, further reduces heat loss and suppress noise excessive.
Pulsating combusting device (6) is to be made of cylindrical combustion chamber (7), spiral tail pipe (8) and cylindrical air exhaust decoupling device (9).On combustion chamber (7) and exhaust decoupling device (9) outer wall, respectively be welded with locating piece to determine its position in water jacket (12).
Heated water is entered by (returning) mouth of a river (20) of advancing of water jacket (12) bottom, under water pump (21) drives, flow through burner outer wall fast and take away the heat that burning produces, delivery port (19) via water jacket (12) top flows out, and sends into the heating circulation line.This design makes whole outer surfaces of combustion chamber (7), tail pipe (8) and the exhaust decoupling device (9) of pulsating combusting device (6) contact with heated water, makes the surface of pulsating combusting device (6) itself become the surface of the heat exchanger of high thermal conductivity.Because the outstanding heat transfer property that the gas in the burner produces has improved rate of heat transfer, thereby improved the temperature of wall, also just improved the efficient that whole hot-fluid transmits to water from combustion product
When starting the utility model at first, at first open purging motor (2) earlier by control device, burner inside is purged, and provide igniting required air; Open fuel magnetic valve (15) then, the coal gas jet enters combustion chamber (7) by its nozzle (25), hits mutually with air-spray to be mixed into combustion mixture and to be lighted by spark plug (4).Pressure in combustion chamber (7) raises thereupon, automatically air check valve (3) and fuel check valve (13) have been closed, combustion product can not flow backwards by these two valves, can only flow through tail pipe (8) exhaust of expanding backward, be discharged to outdoor through disappear living device (10) and blast pipe (11) of exhaust decoupling device (9), exhaust.Because the effect of inertia of exhaust and sound wave are propagated and reflection, in combustion chamber (7), cause parital vacuum (negative pressure state), therefore, automatically open check valve (3) and (13) of air and fuel again, fresh air and fuel are sucked combustion chamber (7), automatically lighted again, strike sparks (4) and no longer need spark plug, does not also need purging motor (2) for air.The back spark plug extinguishes automatically lighting a fire successfully by computer program, and purging motor quits work automatically.The combustion process of pulsation, oneself's circulation are incessantly.In the expansion exhaust process, the flow through internal face of combustion chamber (7), tail pipe (8) and exhaust decoupling device (9) of hot combustion product, efficiently heat is passed to the WATER AS FLOW MEDIUM of surrounding them, water is heated up, when water temperature arrives setting value, thermometric sense head (5) sends signal, turn-off fuel magnetic valve (15) by computer automatic control device, pulsating combusting device (6) quits work; When water temperature is lower than when setting value, pulsating combusting device (6) starts once more to water heats.
The utility model can be made multiple modification expansion.Water jacket (12) is strengthened, remove water pump (21), change level controling mechanism into, this boiler just becomes positive displacement hot water and drinking water boiler; Control flow of inlet water with flow control valve, outside casing, add and join the steam bag, can make the steam generator boiler to be used as sterilization, purging, boiling usefulness; Fuel nozzle ports in the combustion system is changed into the liquid fuel nozzle, add top tank, oil pump and stable-pressure device in system, this embodiment just changes hot water, the steam boiler of liquid fuel work into.
Claims (5)
1, a kind of intermittent combustion formula hot water, steam miniature boiler, it is characterized in that: this device includes a square box (28), computer automatic control device (30) is housed on the panel of casing (28), on casing, have pore (31), (32), (33), (34), (35), boiler body (27), air intlet valve chamber (16), purging motor chamber (17), intake muffler (1), exhaust silencer (10) are housed in square box (28).
2, intermittent combustion formula hot water according to claim 1, the steam miniature boiler, it is characterized in that: pulsating combusting device (6) is housed in boiler body (27), this pulsating combusting device (6) is by cylindrical combustion chamber (7), an end that connects spiral tail pipe (8), the other end of tail pipe (8) connects a cylindrical air exhaust decoupling device (9) and constitutes, on combustion chamber (7), have nozzle (25) and spray orifice (26), nozzle (25) connects fuel check valve (13) by boiler body (27), fuel check valve (13) connects fuel decoupling device (14), fuel decoupling device (14) connects fuel inlet (24) through magnetic valve (15), spray orifice (26) links to each other by the interior air check valve (3) of boiler body (27) and air intlet valve chamber (16), form water jacket (12) in the space between this pulsating combusting device (6) and the boiler body (27), on the boiler body (27) of water jacket (12) bottom, be provided with water inlet (20), water inlet (20) is connected with water pump (21) by pipeline, on the boiler body (27) at water jacket (12) top, be provided with delivery port (19), thermometric sense head (5) is housed on the delivery port (19), exhaust decoupling device (9) in the pulsating combusting device (6) is connected by the end of boiler body (27) with exhaust silencer (10), the other end of exhaust silencer (10) connects blast pipe (11), blast pipe (11) stretches to outdoor by the pore (35) on the casing (28), outdoor blast pipe (23) connects an end of intake muffler (1) by the pore (32) on the casing (28), the other end of intake muffler (1) connects purging motor chamber (17), the outlet of the purging motor (2) in the purging motor chamber (17) connects air intlet valve chamber (16), and ignition spark plug (4) is equipped with on (7) top in the combustion chamber.
3, intermittent combustion formula hot water according to claim 1 and 2, steam miniature boiler is characterized in that: the water inlet (20) on the boiler body (27) can connect level controling mechanism by pipeline.
4, intermittent combustion formula hot water according to claim 1 and 2, steam miniature boiler is characterized in that: the water inlet (20) on the boiler body (27) can pass through pipeline connection traffic control valve.
5, intermittent combustion formula hot water according to claim 1 and 2, steam miniature boiler, it is characterized in that: air check valve (3) is housed in the air intlet valve chamber (16), this check valve (3) connects the combustion chamber (7) of pulsating combusting device (6), this air check valve (3) also connects detection check valve (18) simultaneously, detects check valve (18) and connects pressure switch (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94205613 CN2186375Y (en) | 1994-03-30 | 1994-03-30 | Pulsating burning hot-water, steam mini-boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94205613 CN2186375Y (en) | 1994-03-30 | 1994-03-30 | Pulsating burning hot-water, steam mini-boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2186375Y true CN2186375Y (en) | 1994-12-28 |
Family
ID=33824482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94205613 Expired - Fee Related CN2186375Y (en) | 1994-03-30 | 1994-03-30 | Pulsating burning hot-water, steam mini-boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2186375Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571289B (en) * | 2009-04-14 | 2011-03-23 | 哈尔滨工业大学 | Fuel gas intermittent combustion heating furnace |
| CN106765010A (en) * | 2017-03-17 | 2017-05-31 | 南京林业大学 | Intermittent combustion steam raising plant |
| CN109442748A (en) * | 2018-09-27 | 2019-03-08 | 天津科技大学 | The assisted and strengthened heat transfer boiler of pulsating burning ultrasonic wave |
| GB2594969A (en) * | 2020-05-13 | 2021-11-17 | Bosch Thermotechnology Ltd Uk | Heater and air box |
-
1994
- 1994-03-30 CN CN 94205613 patent/CN2186375Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571289B (en) * | 2009-04-14 | 2011-03-23 | 哈尔滨工业大学 | Fuel gas intermittent combustion heating furnace |
| CN106765010A (en) * | 2017-03-17 | 2017-05-31 | 南京林业大学 | Intermittent combustion steam raising plant |
| CN109442748A (en) * | 2018-09-27 | 2019-03-08 | 天津科技大学 | The assisted and strengthened heat transfer boiler of pulsating burning ultrasonic wave |
| GB2594969A (en) * | 2020-05-13 | 2021-11-17 | Bosch Thermotechnology Ltd Uk | Heater and air box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |