CN202431312U - Energy-saving technology utilization device for integral natural gas compressor - Google Patents
Energy-saving technology utilization device for integral natural gas compressor Download PDFInfo
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- CN202431312U CN202431312U CN201120541909XU CN201120541909U CN202431312U CN 202431312 U CN202431312 U CN 202431312U CN 201120541909X U CN201120541909X U CN 201120541909XU CN 201120541909 U CN201120541909 U CN 201120541909U CN 202431312 U CN202431312 U CN 202431312U
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Abstract
The utility model relates to an energy-saving technology utilization device for an integral natural gas compressor for utilizing complementary energy of tail gas of the integral natural gas compressor. The device mainly comprises a controller, a self-adapting gas adjusting system I of the integral natural gas compressor, an organic Rankine cycle waste gas complementary-energy-to-mechanical-energy conversion system II and a mechanical energy transmission and utilization system III; the organic Rankine cycle waste gas complementary-energy-to-mechanical-energy conversion system II converts waste gas complementary energy in an exhaust header pipe on the integral natural gas compressor in the self-adapting gas adjusting system I of the integral natural gas compressor into rotating kinetic energy of a pneumatic motor, and applies the rotating kinetic energy of the pneumatic motor in the mechanical energy transmission and utilization system III to the integral natural gas compressor, a drive natural gas compressor or a generator simultaneously or respectively to generate electricity, thereby achieving utilization of waste gas energy of the integral natural gas compressor. The device has the characteristics of simple structure and high waste gas complementary energy utilization rate.
Description
Technical field
The utility model belongs to integrated type natural gas compressor power-saving technology and utilizes the field; Be specifically related to integrated type natural gas compressor exhaust energy and utilize system to be converted into the rotational kinetic energy of pneumatic motor, and rotational kinetic energy is converted into the device of electric energy and other form mechanical energy through the Rankine cycle discharge gas complementary energy.
Background technique
Along with rapid economy development, China's energy shortage phenomenon is on the rise, and power saving has become the problem that the world generally is concerned about.In the dynamic power machine industry, dynamic power machine reduces the utilization of fuel consumption and discharging tail gas complementary energy, becomes the focus of research.
The integrated type natural gas compressor is to be power gas with the natural gas, the dynamic power machine that the mechanical energy of output is given vent to anger low-pressure admission boil down to high pressure; The high-temp waste gas of discharging has been taken away the heat energy that is equivalent to useful horsepower, if the effective utilization of this portion of energy can produce huge economic benefit.Utilize in the technique device at discharge gas complementary energy, absorption refrigeration, heat energy directly utilize effective relatively poor and thermo-electric generation still to be in the principle conceptual phase at present; The integrated type natural gas compressor also is being in conceptual phase aspect the reduction amount of consumed gas.
Summary of the invention
The purpose of the utility model provides a kind of integrated type natural gas compressor power-saving technology utilized device; Recycle the problem that is converted into other form energies to solve integrated type natural gas compressor exhaust energy; This system can be converted into integrated type natural gas compressor exhaust energy the rotational kinetic energy of pneumatic motor through Rankine cycle discharge gas complementary energy conversion system; Utilize the mechanical energy transmission then and utilize system that the rotational kinetic energy of pneumatic motor is converted into electric energy and other forms of mechanical energy, thereby realize utilization integrated type natural gas compressor exhaust energy; Simultaneously; This system can realize the automatic adjusting to the power gas amount according to compressor operating state, compressed natural gas outlet pressure demand; Simultaneously can regulate the working medium pump frequency of okperation automatically, make the exhaust energy utilization ratio the highest to confirm suitable working medium flow according to the pneumatic motor working state; The strategy of transmission adopted fluid torque converter coupling power distributor case fully reduces the system mechanics frictional loss.
The utility model integrated type natural gas compressor power-saving technology utilized device; Transformed the mechanical energy II of system, mechanical energy transmission and utilized the III of system to form by controller 42, integrated type natural gas compressor self adaption gas quantity regulating system I, organic Rankine cycle gas complementary energy, its middle controller 42 transforms the mechanical energy II of system with integrated type natural gas compressor self adaption gas quantity regulating system I, organic Rankine cycle gas complementary energy respectively, the mechanical energy transmission is connected with the system III of utilization; Exhaust manifold 10 among the integrated type natural gas compressor self adaption gas quantity regulating system I is connected with the inlet that organic Rankine cycle gas complementary energy transforms the vaporizer 27 among the mechanical energy II of system; Pneumatic motor 31 clutch ends and mechanical energy transmission that organic Rankine cycle gas complementary energy transforms among the mechanical energy II of system are connected with the power intake of fluid torque converter 19 in utilizing the III of system.
Integrated type natural gas compressor self adaption gas quantity regulating system I is made up of give vent to anger house steward 9, exhaust manifold 10, gas supply pipe 11, electronically controlled proportional valve 12 and mass flowmenter III13 of integrated type natural gas compressor 1, flywheel 2, magnetic clutch I3, low-pressure admission house steward 4, mass flowmenter I5, temperature and pressure sensor I6, mass flowmenter II7, temperature and pressure sensor II8, high pressure, and wherein give vent to anger house steward 9 and low-pressure admission house steward 4 of integrated type natural gas compressor gas supply pipe 11, exhaust manifold 10, high pressure places on the integrated type natural gas compressor 1; Low-pressure admission house steward 4 is fixedly connected with integrated type natural gas compressor 1 low-pressure admission end; Give vent to anger house steward 9 of high pressure is fixedly connected with integrated type natural gas compressor 1 high pressure outlet side; Gas supply pipe 11 is fixedly connected with integrated type natural gas compressor 1 fuel gas supply end, and flywheel 2 is connected with integrated type natural gas compressor 1 shaft type; Electronically controlled proportional valve 12 places on the gas supply pipe 11 with mass flowmenter III13, and temperature and pressure sensor II8, mass flowmenter II7 and temperature and pressure sensor I6, mass flowmenter I5 place high pressure to give vent to anger on house steward 9 and the low-pressure admission house steward 4 respectively.
Organic Rankine cycle gas complementary energy transforms the mechanical energy II of system and is made up of vaporizer 27, moisture trap 28, self-priming pump 29, temperature and pressure sensor III30, pneumatic motor 31, temperature and pressure sensor IV32, condenser 33, water pump 34, cooling tower 35, temperature and pressure sensor V36, reduction valve 37, overflow compensator 38, reflux valve 39, working medium holding vessel 40 and working medium pump 41.Exhaust manifold 10 on the described integrated type natural gas compressor 1 successively carries out pipeline with moisture trap 28 suction ports, moisture trap 28 air outlets with self-priming pump 29 with vaporizer 27 suction ports, vaporizer 27 air outlets and is connected; The working medium liquid outlet of described vaporizer 27 carries out pipeline successively with the working medium liquid entering hole of vaporizer 27 and is connected with working medium pump 41 imports, working medium pump 41 outlets with working medium holding vessel 40 I liquid entering holes, working medium holding vessel 40 liquid outlets with reduction valve 37, reduction valve 37 with the working medium suction port of condenser 33, the working medium liquid outlet of condenser 33 with the air outlet of the suction port of pneumatic motor 31, pneumatic motor 31.The cooling water intake of described condenser 33 carries out closed-loop-pipeline successively with the coolant outlet of condenser 33 and is connected with cooling tower 35 outlets, cooling tower 35 inlets with water pump 34 outlets, water pump 34 inlets; Cooling tower 35 the other ends are connected with moisture trap 28 pipelines.Described reduction valve 37 the other ends are connected with working medium holding vessel 40 II liquid entering holes pipeline successively with reflux valve 39 with overflow compensator 38 inlets, 38 outlets of overflow compensator.The suction port of pneumatic motor 31 and air outlet end pipeline are provided with temperature and pressure sensor III30 and temperature and pressure sensor IV32 respectively; Between condenser 33 working medium liquid outlets and the reduction valve 37 temperature and pressure sensor V36 is set.
The mechanical energy transmission with utilize the III of system to form by natural gas compressor 14, universal driving device I15, universal driving device II16, magnetic clutch II17, power distribution case 18, fluid torque converter 19, magnetic clutch III20, magnetic clutch IV21, universal driving device III22, generator 23, net-connected controller 24, ups power 25 and consumer 26.Described pneumatic motor 31 clutch ends are connected with fluid torque converter 19, power distribution case 18 shaft types; Power distribution case 18 power distributions ratio is 1: 3; Its clutch end is divided into three the tunnel: the magnetic clutch II17 of leading up to is connected with universal driving device II16, magnetic clutch I3 shaft type, and the flywheel 2 on magnetic clutch I3 and the integrated type natural gas compressor 1 is fixedly connected; The magnetic clutch III20 of leading up to is connected with natural gas compressor 14 power intake shaft types with universal driving device I15; The magnetic clutch IV21 of leading up to is connected with generator 23 shaft types with universal driving device III22; Generator 23 and net-connected controller 24, ups power 25 are connected with circuit form; Ups power 25 is connected with consumer 26 circuit with circuit form.
Described controller 42 transforms the mechanical energy II of system and mechanical energy transmission with integrated type natural gas compressor self adaption gas quantity regulating system I, organic Rankine cycle gas complementary energy respectively and is connected with each sensor and actuator in utilizing the III of system.
The beneficial effect of the utility model is: integrated type natural gas compressor power-saving technology utilized device on the one hand can be according to self adaption gas quantity supply model real-time regulated power gas delivery volume; Use amount of consumed gas to reduce power end; Can come the frequency of okperation of adjustment working medium pump in real time according to self adaption Lang Ken cycle fluid Flow-rate adjustment model on the other hand; Make pneumatic motor be operated in high efficiency region, improve the exhaust energy utilization ratio; The mechanical energy transmission with utilize that magnetic clutch meshes in state of rest in the system, and adopt and mesh earlier the control strategy that afterwards breaks away from, abundant reduction is to the impact and the destruction of clutch.
Description of drawings
Fig. 1 is the structured flowchart of integrated type natural gas compressor power-saving technology utilized device;
Of which: I. adaptive amount of gas conditioning systems II. Organic Rankine cycle waste I can be transformed system III. Mechanical transmission with mechanical energy utilization system 1. Integral gas compressor 2. Flywheel 3 Electromagnetic clutches I 4. pressure intake manifold 5 mass flowmeter I 6. Temperature and pressure sensors I 7. Mass Flow Meter II 8. Temperature and Pressure Sensors II 9. pressure outlet Explorer 10 exhaust manifold 11 gas supply pipe 12. electrically controlled proportional valve 13 mass flowmeter III 14. Gas compressor 15. universal gear I 16 . universal gear II 17. electromagnetic clutch II 18. power distribution box 19. torque converter ? 20. electromagnetic clutch III 21. electromagnetic clutch IV ? 22. Wan to drive III 23. Generator 24. grid controller 25.UPS power 26. electric equipment 27. Evaporator 28. gas-water separator 29 since suction pump 30. temperature and pressure sensors III 31. air motor 32. temperature and pressure sensors IV 33. condenser 34. pump 35. cooling tower 36. temperature and pressure sensors V? 37. valve 38. overflow balance tank 39. return valve 40. working fluid storage tank 41. working fluid pump 42. controllers composition.
Embodiment
Do further to set forth in detail below in conjunction with 1 pair of integrated type natural gas compressor power-saving technology utilized device of the present invention of accompanying drawing:
During 1 operation of integrated type natural gas compressor; Control unit 42 is respectively through gathering mass flowmenter I5 and temperature and pressure sensor I6 and high pressure on the low-pressure admission house steward 4 give vent to anger mass flowmenter II7 and the signal of temperature and pressure sensor II8 on the house steward 9; Calculate burden requirement, make up self adaption gas quantity supply model, according to constructed self adaption gas quantity supply model; Controller 42 is gathered the signal of the temperature and pressure sensor III13 on the gas supply pipe 11; Through electronically controlled proportional valve 12 real-time regulated power gas delivery volumes, under the prerequisite that satisfies required high-pressure gas pressure and temperature, to reduce the required natural gas delivery volume of integrated type natural gas compressor 1 work.
The used working medium of Rankine cycle is stored in the working medium holding vessel 40; Working medium pump 41 transfers to working medium in the vaporizer 27; 1 discharge tail gas of integrated type natural gas compressor is delivered to vaporizer 27 through exhaust manifold 10, and tail gas flows to self-priming pump 29 through moisture trap 28 after in vaporizer 27, discharging heat; For avoiding integrated type natural gas compressor 1 exhaust back pressure too high; Self-priming pump is opened in integrated type natural gas compressor 1 working procedure all the time, and moisture trap is the water condensation in the tail gas, and is delivered to cooling tower 35; In vaporizer 27, working medium absorbs the heat that tail gas discharged, and is gasificated into superheated vapor, and superheated vapor transfers to pneumatic motor 31, externally output acting of pneumatic motor 31; Weary gas transfers to condenser 33, in condenser 33, is condensed into liquid refrigerant, if pneumatic motor 31 work are undesired, condensed liquid refrigerant pressure will be higher than authorized pressure, and working medium transfers to overflow compensator 38 through reduction valve 37; Power pressure recovers just often, opens reflux valve 39, and working medium will directly transfer to working medium holding vessel 40 through reflux valve 39.When pneumatic motor 31 proper functioning, open reflux valve 38, the working medium in the overflow compensator 38 flows in the working medium holding vessel 40 through reflux valve 38.Condenser 33 needs cooling in the course of the work, and control unit 42 is through gathering the signal value of condenser 33 forward and backward temperature and pressure sensor IV32 and temperature and pressure sensor V36, confirms the cooling water flow that condenser under the real-time flox condition of working medium 33 is required; Control unit 42 is through regulating the frequency of okperation real-time regulated cooling water flow of water pump, and cooling water itself is through cooling tower 35 coolings.Control unit 42 is gathered the signal of pneumatic motor 31 forward and backward temperature and pressure sensor III31 and temperature and pressure sensor IV32; Make up self adaption Rankine cycle working medium flow and regulate model; Regulate the frequency of okperation that model is regulated working medium pump 41 according to constructed self adaption Rankine cycle working medium flow; Make pneumatic motor 31 be operated in high efficient area, improve the exhaust energy utilization ratio.
The power that pneumatic motor 31 is exported reaches power distribution case 18 through fluid torque converter 19 with co-axial form; Power distribution case 18 clutch end outputting powers are used for integrated type natural gas compressor 1 respectively or simultaneously, drive natural gas compressor 14 and generator 23 generatings, and its clutch end is defined as I clutch end, II clutch end and III clutch end respectively; The power transmission line that wherein is used for the integrated type natural gas compressor is: magnetic clutch I3 at first with integrated type natural gas compressor 1 on flywheel 2 mesh in state of rest; The clutch end of magnetic clutch II17 and power distribution case 18 engagement then; When 1 running of integrated type natural gas compressor; Can effectively reduce the impact loss of magnetic clutch I3 and magnetic clutch II17; And make the frictional loss of each magnetic clutch less; The I clutch end of integrated type natural gas compressor 1 with transmission of power to flywheel 2, is used for auxiliary drive integrated type natural gas compressor 1 through magnetic clutch II17, universal driving device II16 and magnetic clutch I3.The power transmission line that is used to drive natural gas compressor 14 is: the II clutch end of power distribution case 18 transfers to natural gas compressor 14 with power through magnetic clutch III20 and universal driving device I15; Drive natural gas compressor 14 as replenishing high-pressure air source; When needs are assisted high-pressure air source; Controller 42 is through driving magnetic clutch III20 engagement, and power transmission to natural gas compressor 14 is to produce high-pressure gas.The power transmission line that is used for generator 23 generatings is: the III clutch end of power distribution case 18 passes through magnetic clutch IV21 and universal driving device III2 with power; 2 with power transmission to generator 23; The electric energy of generator 23 outputs transfers to ups power 25 through net-connected controller 24, is used to consumer 26 power supplies; When needs were given consumer 26 power supplies, controller 42 drove magnetic clutch IV21 engagement, power transmission to generator 23, and generator 23 output electric energy offer consumer 26.
The structural principle of technological scheme of the present invention below only has been described with regard to the case study on implementation of integrated type natural gas compressor, can have been used fully in the more combustion dynamic power machine by this scheme.
In the practical application by vaporizer 27; Pneumatic motor 31; Condenser 33; Water pump 34; Reduction valve 37; Overflow compensator 38; Reflux valve 39; Working medium holding vessel 40 and working medium pump 41 are as the organic Rankine cycle gas complementary energy conversion mechanical energy II of system of main member with power distribution case 18; Fluid torque converter 19; Generator 23 and each magnetic clutch be the mechanical energy transmission that constitutes of main member with utilize the III of system can be separately and the combustion dynamic power machine constitute corresponding exhaust energy recovery holonomic system.
Claims (4)
1. an integrated type natural gas compressor power-saving technology utilized device is characterized in that controller (42) transforms the mechanical energy II of system with integrated type natural gas compressor self adaption gas quantity regulating system I, organic Rankine cycle gas complementary energy respectively, the mechanical energy transmission is connected with the system III of utilization; Exhaust manifold (10) among the integrated type natural gas compressor self adaption gas quantity regulating system I is connected with the inlet that organic Rankine cycle gas complementary energy transforms the vaporizer (27) among the mechanical energy II of system; Pneumatic motor (31) clutch end and mechanical energy transmission that organic Rankine cycle gas complementary energy transforms among the mechanical energy II of system are connected with the power intake of fluid torque converter (19) in utilizing the III of system.
2. by the described integrated type natural gas compressor of claim 1 power-saving technology utilized device; It is characterized in that integrated type natural gas compressor self adaption gas quantity regulating system I is made up of give vent to anger house steward (9), exhaust manifold (10), gas supply pipe (11), electronically controlled proportional valve (12) and mass flowmenter III (13) of integrated type natural gas compressor (1), flywheel (2), magnetic clutch I (3), low-pressure admission house steward (4), mass flowmenter I (5), temperature and pressure sensor I (6), mass flowmenter II (7), temperature and pressure sensor II (8), high pressure, wherein give vent to anger house steward (9) and low-pressure admission house steward (4) of integrated type natural gas compressor gas supply pipe (11), exhaust manifold (10), high pressure places on the integrated type natural gas compressor (1); Low-pressure admission house steward (4) is fixedly connected with integrated type natural gas compressor (1) low-pressure admission end; Give vent to anger house steward (9) and integrated type natural gas compressor (1) high pressure outlet side of high pressure is fixedly connected; Gas supply pipe (11) is fixedly connected with integrated type natural gas compressor (1) fuel gas supply end, and flywheel (2) is connected with integrated type natural gas compressor (1) shaft type; Electronically controlled proportional valve (12) and mass flowmenter III (13) place on the gas supply pipe (11), and temperature and pressure sensor II (8), mass flowmenter II (7) and temperature and pressure sensor I (6), mass flowmenter I (5) place high pressure to give vent to anger on house steward (9) and the low-pressure admission house steward (4) respectively.
3. by the described integrated type natural gas compressor of claim 1 power-saving technology utilized device, it is characterized in that organic Rankine cycle gas complementary energy transforms the mechanical energy II of system and is made up of vaporizer (27), moisture trap (28), self-priming pump (29), temperature and pressure sensor III (30), pneumatic motor (31), temperature and pressure sensor IV (32), condenser (33), water pump (34), cooling tower (35), temperature and pressure sensor V (36), reduction valve (37), overflow compensator (38), reflux valve (39), working medium holding vessel (40) and working medium pump (41); Exhaust manifold (9) on the described integrated type natural gas compressor (1) successively carries out pipeline with moisture trap (28) suction port, moisture trap (28) air outlet with self-priming pump (29) with vaporizer (27) suction port, vaporizer (27) air outlet and is connected; The working medium liquid outlet of described vaporizer (27) carries out pipeline successively with the working medium liquid entering hole of vaporizer (27) and is connected with working medium pump (41) import, working medium pump (41) outlet with working medium holding vessel (40) I liquid entering holes, working medium holding vessel (40) liquid outlet with reduction valve (37), reduction valve (37) with the working medium suction port of condenser (33), the working medium liquid outlet of condenser (33) with the air outlet of the suction port of pneumatic motor (31), pneumatic motor (31); The cooling water intake of described condenser (33) carries out closed-loop-pipeline successively with the coolant outlet of condenser (33) and is connected with cooling tower (35) outlet, cooling tower (35) inlet with water pump (34) outlet, water pump (34) inlet; Cooling tower (35) the other end is connected with moisture trap (28) pipeline; Described reduction valve (37) the other end is connected with working medium holding vessel (40) II liquid entering holes pipeline successively with reflux valve (39) with overflow compensator (38) inlet, overflow compensator (38) outlet; The suction port of pneumatic motor (31) and air outlet end pipeline are provided with temperature and pressure sensor III (30) and temperature and pressure sensor IV (32) respectively; Between condenser (33) working medium liquid outlet and the reduction valve (37) temperature and pressure sensor V (36) is set.
4. by the described integrated type natural gas compressor of claim 1 power-saving technology utilized device, it is characterized in that the mechanical energy transmission and utilize the III of system to form by natural gas compressor (14), universal driving device I (15), universal driving device II (16), magnetic clutch II (17), power distribution case (18), fluid torque converter (19), magnetic clutch III (20), magnetic clutch IV (21), universal driving device III (22), generator (23), net-connected controller (24), ups power (25) and consumer (26); Described pneumatic motor (31) clutch end is connected with fluid torque converter (19), power distribution case (18) shaft type; Power distribution case (18) power distribution ratio is 1: 3; Its clutch end is divided into three the tunnel: the magnetic clutch II (17) of leading up to is connected with universal driving device II (16), magnetic clutch I (3) shaft type, and the flywheel (2) on magnetic clutch I (3) and the integrated type natural gas compressor (1) is fixedly connected; The magnetic clutch III (20) of leading up to is connected with natural gas compressor (14) power intake shaft type with universal driving device I (15); The magnetic clutch IV (21) of leading up to is connected with generator (23) shaft type with universal driving device III (22); Generator (23) is connected with circuit form with net-connected controller (24), ups power (25); Ups power (25) is connected with consumer (26) circuit with circuit form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120541909XU CN202431312U (en) | 2011-12-22 | 2011-12-22 | Energy-saving technology utilization device for integral natural gas compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120541909XU CN202431312U (en) | 2011-12-22 | 2011-12-22 | Energy-saving technology utilization device for integral natural gas compressor |
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| Publication Number | Publication Date |
|---|---|
| CN202431312U true CN202431312U (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120541909XU Withdrawn - After Issue CN202431312U (en) | 2011-12-22 | 2011-12-22 | Energy-saving technology utilization device for integral natural gas compressor |
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| Country | Link |
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| CN (1) | CN202431312U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493851A (en) * | 2011-12-22 | 2012-06-13 | 吉林大学 | Energy-saving technology utilizing device of integrated type natural gas compressor |
| CN106546033A (en) * | 2016-11-03 | 2017-03-29 | 天津大学 | The many waste heat sources of gas machine drive the supercharging triple effect compound-refrigerating circulatory system |
| CN106640225A (en) * | 2015-11-03 | 2017-05-10 | 熵零股份有限公司 | Energy recovery method of pressure gas |
| CN111058998A (en) * | 2020-01-19 | 2020-04-24 | 象山侧风电子技术有限公司 | Straw combustion power generation device |
-
2011
- 2011-12-22 CN CN201120541909XU patent/CN202431312U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493851A (en) * | 2011-12-22 | 2012-06-13 | 吉林大学 | Energy-saving technology utilizing device of integrated type natural gas compressor |
| CN102493851B (en) * | 2011-12-22 | 2015-07-01 | 吉林大学 | Energy-saving technology utilizing device of integrated type natural gas compressor |
| CN106640225A (en) * | 2015-11-03 | 2017-05-10 | 熵零股份有限公司 | Energy recovery method of pressure gas |
| CN106546033A (en) * | 2016-11-03 | 2017-03-29 | 天津大学 | The many waste heat sources of gas machine drive the supercharging triple effect compound-refrigerating circulatory system |
| CN106546033B (en) * | 2016-11-03 | 2018-06-19 | 天津大学 | The extra heat source driving supercharging triple effect compound-refrigerating circulatory system of gas machine |
| CN111058998A (en) * | 2020-01-19 | 2020-04-24 | 象山侧风电子技术有限公司 | Straw combustion power generation device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120912 Effective date of abandoning: 20150701 |
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| RGAV | Abandon patent right to avoid regrant |