CN202902246U - Pulsation porous medium combustion power generation system - Google Patents
Pulsation porous medium combustion power generation system Download PDFInfo
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- CN202902246U CN202902246U CN 201220565656 CN201220565656U CN202902246U CN 202902246 U CN202902246 U CN 202902246U CN 201220565656 CN201220565656 CN 201220565656 CN 201220565656 U CN201220565656 U CN 201220565656U CN 202902246 U CN202902246 U CN 202902246U
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Abstract
A pulsation porous medium combustion power generation system comprises a pulsation porous medium combustor and a power generation system with a threaded rod type expansion machine, wherein the pulsation porous medium combustor comprises a gas inlet pipe and a membrane valve located above the gas inlet pipe, the pulsation porous medium combustor and a medium-free combustor are located between the membrane valve and a flue gas pipe, the flue gas pipe is wrapped with foamed ceramics playing a role in heat conduction, a spirally wound heat exchange pipe is located in the foamed ceramics, a guide sleeve pipe is located behind the flue gas pipe, a preheater is located behind the guide sleeve pipe, and an exhaust pipe is connected with the preheater; and the power generation system with the threaded rod type expansion machine comprises a water storage tank storing working medium water, a water processor, a boiler barrel used for vapor-liquid separation, the threaded rod type expansion machine converting heat energy to mechanical energy, and a generator converting the mechanical energy into electric energy. The system uses combustion heat and low temperature exhaust heat of low heating value gas to generate electricity, single machine capacity is reasonable in matching, and the system is convenient to operate, energy-saving and environment-friendly, and good in using effect.
Description
Technical field
The utility model relates to a kind of pulsation multi-hole medium combustion electricity generation system, be particularly useful for to the low-BTU gas such as coal mine light concentration mash gas, low concentration natural gas burn and take full advantage of reaction heat, waste heat carries out the conversion of high efficiency thermoelectric.
Background technology
Pulsating combusting device is under certain acoustic condition control, is operated in specially the burner under the acoustics pulse state.In the middle of the 19th century, professor Li Kangte finds " to the flame of music sensitivity ", and namely people are familiar with the beginning of intermittent combustion.In these more than hundred years, various dissimilar pulsating combusting devices occurred, present most widely used pulsating combusting device is Hai Ermuhuoci type pulsating combusting device, and it is based on the principle work of the Hai Ermuhuoci resonator on the acoustics.Yet pulsating combusting device has a lot of shortcomings, and is even such as its temperature distributing disproportionation of combustion chamber, is unfavorable for the utilization of heat; Gas flow rate is large, is not easy to control, is conducive to thus the burner accumulation of heat, and efficiency of combustion is unstable, and burning load is low; During burning, larger noise and vibration problem are arranged.
Generator commonly used in the electricity generation system is gas turbine or steam turbine.The power of these two kinds of traditional type generator outputs is large, and is high to the quality requirements of fuel.Coal mine light concentration mash gas, the such low-BTU gas of low concentration natural gas, not only concentration is very low, and the fluctuation range of concentration is large, and conventional electric generators is cisco unity malfunction usually.So for utilizing low-BTU gas, present electricity generation system is usually introduced the screw decompressor mechanical energy that low-BTU gas produces is converted into electric energy, the power bracket of this decompressor is usually at 1kW ~ 1000kW.Such as the patent 201010501852.0 of having applied for, power generation part wherein well utilizes the advantage of screw decompressor, yet, recirculated water part wherein, do not take full advantage of the waste heat of flue gas, cause the little low-BTU gas energy of energy density own to run off, reduce energy utilization efficiency.Simultaneously, the heat of flue gas partial runs off, and can cause environmental thermal pollution serious, is unfavorable for environmental protection.
Summary of the invention
The purpose of this utility model is to overcome the deficiency in the prior art, provide a kind of simple in structure, can take full advantage of waste heat, easy to operate, energy-conserving and environment-protective, effective pulsation multi-hole medium combustion electricity generation system.
For achieving the above object, pulsation multi-hole medium combustion electricity generation system of the present utility model, comprise burner, the drum that connects burner, boiler drum bottom is connected with respectively heat exchanger water circulating pump and drum feed pump, the top of drum is connected with the screw decompressor through pipeline, the screw decompressor is connected with generator, the bottom of screw decompressor is connected with condenser, the condenser delivery port is connected with storage tank, the entrance of storage tank is connected with the hydrotreater that links to each other with feed pump through pipeline, the porch of described drum feed pump is connected with preheater, preheater bottom water inlet is connected with storage tank through pipeline, described burner is attached with heat-insulation layer for pulsation porous media combustor, pulsation porous media combustor comprises burner shell on the burner shell inwall, be provided with the inner core that the multi-hole medium combustion chamber is housed in the heat-insulation layer, inner core top is provided with the igniter that penetrates in the burner shell, and the bottom of burner shell is provided with the air inlet pipe that is communicated with inner core, and the porch of air inlet pipe is provided with diaphragm valve; Be wound with snakelike heat exchange tube on the fume pipe that burner shell top connects, fume pipe and burner shell junction are wound with heat-insulation layer, the snakelike heat exchange tube outside is provided with the guide thimble that links to each other with preheater, be filled with in the guide thimble and be attached to snakelike heat exchange tube foamed ceramics heat-conducting layer on every side, the arrival end of described snakelike heat exchange tube connects the heat exchanger water circulating pump through pipeline, the port of export of snakelike heat exchange tube connects drum through pipeline, and preheater is connected in the afterbody of guide thimble mutually.
Described multi-hole medium combustion chamber is SiC foamed ceramics multi-hole medium combustion chamber or Al
2O
3Foamed ceramics multi-hole medium combustion chamber; Described condenser is water cooled condenser or air cooled condenser; Described screw decompressor is single-screw decompressor or double-screw type decompressor.
Beneficial effect: the utility model forms the pulsation porous media combustor by porous media is combined with pulsating combusting device, further expanded natural gas, coal mine gas etc. and certainly kept the concentration limit of smooth combustion and reduce pollutant emission, its system architecture is simple, can take full advantage of waste heat, easy to operate, energy-conserving and environment-protective, effective.Mainly contain following advantage:
1, adopt the pulsation porous media combustor can overcome pulsating combusting device deficiency technically, new pulsation porous media combustor can be expanded the gases such as natural gas, coal mine gas from the concentration limit of keeping smooth combustion, reduce the pollutant discharge amount in the combustion process, improve efficiency of combustion;
2, in fume pipe outside around the columned foamed ceramics heat-conducting layer of arranging, and the heat exchanger tube of the spiral winding that distributes in inside has improved heat exchange efficiency greatly, and allows more stable and uniform of heat exchange;
3, in the guide thimble outlet preheater is set and takes full advantage of fume afterheat raising efficiency of combustion, also reduced simultaneously because waste heat discharges the thermal pollution that causes, energy-conserving and environment-protective;
4, with the device of the large screw decompressor of single-machine capacity excursion as heat energy and mechanical energy conversion, the fluctuation of the heat energy size of bringing in the time of can overcoming with the variable concentrations gas combustion, be particularly useful for the low-BTU gas such as the extremely unsettled coal mine light concentration mash gas of concentration, natural gas, avoided that traditional steam engine single-machine capacity is large, system architecture is complicated and the mismatch problem of heat energy size when burning with light concentration gas;
5, the selection water-cooled that can suit measures to local conditions of the condenser of electricity generation system or air-cooled; Working-medium water can adopt the mode of recycling and suitable moisturizing, has effectively saved water resource and has taken full advantage of the waste heat of discharging in the water.
Description of drawings
Fig. 1 is system construction drawing of the present utility model.
Among the figure: 1-air inlet pipe, 2-diaphragm valve, 3-burner shell, 4-heat-insulation layer, the 5-fume pipe, 6-heat exchanger tube, 7-foamed ceramics heat-conducting layer, 8-guide thimble, 9-heat exchanger water circulating pump, 10-drum, 11-drum feed pump, 12-screw decompressor, the 13-generator, 14-condenser, 15-feed pump, 16-hydrotreater, the 17-storage tank, 18-blast pipe, 19-preheater, the 20-igniter, 21-inner core, 22-porous media matter combustion chamber.
The specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
Pulsation multi-hole medium combustion electricity generation system of the present utility model mainly is made of burner, heat-exchanger rig, preheating device, circular water treating system and the screw decompressor 12 that is connected with generator 13; Described burner is the pulsation porous media combustor, the pulsation porous media combustor comprises burner shell 3, be attached with heat-insulation layer 4 on burner shell 3 inwalls, be provided with the inner core 21 that multi-hole medium combustion chamber 22 is housed in the heat-insulation layer 4, inner core 21 tops are provided with the igniter 20 that penetrates in the burner shell 3, and described multi-hole medium combustion chamber 22 is SiC foamed ceramics multi-hole medium combustion chamber or Al
2O
3Foamed ceramics multi-hole medium combustion chamber.The bottom of burner shell 3 is provided with the air inlet pipe 1 that is communicated with inner core 21, and the porch of air inlet pipe 1 is provided with diaphragm valve 2; Described heat-exchanger rig comprises the fume pipe 5 that burner shell 3 tops connect, the snakelike heat exchange tube 6 that twines on the fume pipe 5, snakelike heat exchange tube 6 outsides are provided with the guide thimble 8 that links to each other with preheater 19, are filled with in the guide thimble 8 to be attached to snakelike heat exchange tube 6 foamed ceramics heat-conducting layer 7 on every side; Described preheating device comprises the preheater 19 that guide thimble 8 afterbodys connect, the blast pipe 18 that preheater 19 right-hand members connect, the drum feed pump 11 that preheater 19 upper ends connect through pipeline, drum feed pump 11 upper ends link to each other with drum 10 right lower quadrants that are being connected burner through pipeline, the heat exchanger water circulating pump 9 that drum 10 bottoms connect.The top of drum 10 is connected with screw decompressor 12 through pipeline, and screw decompressor 12 is connected with generator 13, and described screw decompressor 12 is single-screw decompressor or double-screw type decompressor; Described circular water treating system comprises the storage tank 17 that is connected through pipeline with preheater 19 bottoms, the condenser 14 that storage tank 17 right lower quadrants connect, the hydrotreater 16 that the upper entrance place of storage tank 17 connects, the feed pump 15 that hydrotreater 16 right-hand members connect through pipeline, described condenser 14 is water cooled condenser or air cooled condenser.
Operation principle: pre-mixed combustion gas enters in the multi-hole medium combustion chamber 22 from diaphragm valve 2, combustion gas takes fire after being lighted by igniter 20, burning is accompanied by heat release and makes pressure rise in the combustion chamber, when pressure rise arrives greater than the pre-mixing gas combustion supply pressure, diaphragm valve 2 cuts out, the hot combustion gas that burning produces can not be flow backwards by valve, 8 flow and the expansion discharge along fume pipe 5 to guide thimble, pressure in the combustion chamber descends thereupon, and pressure drop forms negative pressure to making in the combustion chamber, and pressure drop is when being lower than the inlet pressure of pre-mixing gas combustion, diaphragm valve 2 is opened again, fresh pre-mixing gas combustion reenters the combustion chamber, is lighted by indoor waste heat, carries out thus burn cycle; The water that feed pump 15 extracts and flow in the storage tank 17 through the working-medium water of condenser 14, passing through preheater 18 by drum feed pump 11 inflow drums 10, working-medium water in the drum 10 provides in the power inflow snakelike heat exchange tube 6 through heat exchanger water circulating pump 9 and carries out heat exchange, and some working-medium water vaporization, again flow into and carry out vapor-liquid separation in the drum 10, it is mechanical energy that HTHP working-medium water steam flow after the separation enters in the screw decompressor 12 thermal power transfer, and by generator 13 mechanical energy is converted to electric energy, the low energy working medium steam behind the screw decompressor 12 of flowing through flows in the storage tank 17 after through condenser 14 coolings again, makes thus the working-medium water can be recycling.
Claims (4)
1. pulsation multi-hole medium combustion electricity generation system, comprise burner, the drum (10) that connects burner, drum (10) bottom is connected with respectively heat exchanger water circulating pump (9) and drum feed pump (11), the top of drum (10) is connected with screw decompressor (12) through pipeline, screw decompressor (12) is connected with generator (13), the bottom of screw decompressor (12) is connected with condenser (14), condenser (14) delivery port is connected with storage tank (17), the entrance of storage tank (17) is connected with the hydrotreater (16) that links to each other with feed pump (15) through pipeline, it is characterized in that: the porch of described drum feed pump (11) is connected with preheater (19), preheater (19) bottom water inlet is connected with storage tank (17) through pipeline, described burner is the pulsation porous media combustor, the pulsation porous media combustor comprises burner shell (3), be attached with heat-insulation layer (4) on burner shell (3) inwall, be provided with the inner core (21) that multi-hole medium combustion chamber (22) are housed in the heat-insulation layer (4), inner core (21) top is provided with the igniter (20) that penetrates in the burner shell (3), the bottom of burner shell (3) is provided with the air inlet pipe (1) that is communicated with inner core (21), and the porch of air inlet pipe (1) is provided with diaphragm valve (2); Be wound with snakelike heat exchange tube (6) on the fume pipe (5) that burner shell (3) top connects, fume pipe (5) is wound with heat-insulation layer (4) with burner shell (3) junction, snakelike heat exchange tube (6) outside is provided with the guide thimble (8) that links to each other with preheater (19), be filled with in the guide thimble (8) and be attached to snakelike heat exchange tube (6) foamed ceramics heat-conducting layer (7) on every side, the arrival end of described snakelike heat exchange tube (6) connects heat exchanger water circulating pump (9) through pipeline, the port of export of snakelike heat exchange tube (6) connects drum (10) through pipeline, and preheater (19) is connected in the afterbody of guide thimble (8) mutually.
2. pulsation multi-hole medium combustion electricity generation system according to claim 1 is characterized in that: described multi-hole medium combustion chamber (22) is SiC foamed ceramics multi-hole medium combustion chamber or Al
2O
3Foamed ceramics multi-hole medium combustion chamber.
3. pulsation multi-hole medium combustion electricity generation system according to claim 1, it is characterized in that: described condenser (14) is water cooled condenser or air cooled condenser.
4. pulsation multi-hole medium combustion electricity generation system according to claim 1, it is characterized in that: described screw decompressor (12) is single-screw decompressor or double-screw type decompressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565656 CN202902246U (en) | 2012-10-31 | 2012-10-31 | Pulsation porous medium combustion power generation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565656 CN202902246U (en) | 2012-10-31 | 2012-10-31 | Pulsation porous medium combustion power generation system |
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| CN202902246U true CN202902246U (en) | 2013-04-24 |
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| CN 201220565656 Withdrawn - After Issue CN202902246U (en) | 2012-10-31 | 2012-10-31 | Pulsation porous medium combustion power generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913890A (en) * | 2012-10-31 | 2013-02-06 | 中国矿业大学 | Pulsation porous medium combustion power generation system |
-
2012
- 2012-10-31 CN CN 201220565656 patent/CN202902246U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913890A (en) * | 2012-10-31 | 2013-02-06 | 中国矿业大学 | Pulsation porous medium combustion power generation system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130424 Effective date of abandoning: 20140514 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20130424 Effective date of abandoning: 20140514 |
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| RGAV | Abandon patent right to avoid regrant |