CN204267120U - Adopt the low-temperature waste heat power generation equipment of frequency conversion automatic control technology - Google Patents
Adopt the low-temperature waste heat power generation equipment of frequency conversion automatic control technology Download PDFInfo
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- CN204267120U CN204267120U CN201420712999.8U CN201420712999U CN204267120U CN 204267120 U CN204267120 U CN 204267120U CN 201420712999 U CN201420712999 U CN 201420712999U CN 204267120 U CN204267120 U CN 204267120U
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Abstract
The utility model discloses a kind of low-temperature waste heat power generation equipment adopting frequency conversion automatic control technology, comprise vaporizer, preheater, liquid container, condenser, decompressor, generator and cooling tower.Described power generating equipment is made up of three groups of circulation loops, and circulation loop one is heat supplying loop, and circulation loop two is generating and soft circulation circuit, and circulation loop three is cooling circuits.Analog amount fluid level transmitter is installed on an evaporator; Analog amount fluid level transmitter accurately can show evaporation liquid level and send signal to control system, control system compares with setting value according to level parameter signal, carries out adjustment accurately can show organic working medium fluid level condition in vaporizer by the frequency conversion facility on working medium pump to working medium liquid level.The utility model structure is simply installed easily, simple to operate.Generator set take up an area little, highly versatile, can complete machine dress and mobile, the feature of suitable industrial exhaust heat and gas-to electricity.Maintenance and Repair are convenient.
Description
Technical field
The utility model belongs to Low-temperature heat utilization techniques field, and particularly one adopts variable frequency adjustment working medium pump, realizes the low-temperature waste heat power generation equipment that in vaporizer, organic working medium liquid level accurately controls.
Background technique
In low temperature exhaust heat field, adopt organic working medium (ORC) as working medium and less than the 90 DEG C low-temperature water heating heat exchange of thermodynamic cycle, after organic working medium heat absorption, produce high pressure steam, promote double-work medium decompressor drive electrical generators and generate electricity.This is that conventional electric power generation technology can not be accomplished (conventional electric power generation requires that heat source temperature is more than 350 DEG C), thus widened the residual heat resources scope that can reclaim generating greatly, the low temperature exhaust heat for industries such as building materials, metallurgy, chemical industry reclaims and provides better technological means and equipment.Meanwhile, this technology can also be generalized to (as geothermal power, solar energy and biomass energy) in renewable energy power generation equipment, provides novel technical method for utilizing renewable energy power generation.
The unit of original application, working medium pump is in power frequency oepration at full load state all the time after unit puts into operation, and does not consider because heat source temperature fluctuation causes the change of organic working medium liquid level in vaporizer thus affects evaporation efficiency and operation process.And vaporizer is heat absorption, evaporation one, working medium walks shell side, and hot water walks tube side.Working medium liquid level is too low, and lower than heat exchanger coiled pipe horizontal position, heat exchange efficiency declines; Working medium liquid level is too high, and evaporation area is not enough, and condenser loses liquid, affects heat exchange efficiency equally.
Summary of the invention
In order to solve prior art Problems existing, the utility model proposes a kind of power generating equipment of low temperature exhaust heat of employing frequency conversion automatic control technology newly.
The utility model power generating equipment forms like this:
Adopt a low-temperature waste heat power generation equipment for frequency conversion automatic control technology, comprise vaporizer, preheater, liquid container, condenser, decompressor, generator and cooling tower; Described power generating equipment is made up of three groups of circulation loops, and circulation loop one is heat supplying loop, and circulation loop two is generating and soft circulation circuit, and circulation loop three is cooling circuits;
Circulation loop one is: the outlet of thermal water source is connected to the pipeline one in vaporizer and preheater by hot water circulating pump and check valve, and the circuit entrance that the outlet of pipeline one is connected to thermal water source by valve again forms circulation loop;
Circulation loop two is: the outlet of the pipeline two in vaporizer and preheater by the entrance of main stop valve connecting screw rod decompressor, decompressor drive electrical generators running generating, the outlet of decompressor connects the pipeline one in condenser by valve; The outlet of the pipeline one of condenser connects liquid container, and what the outlet of liquid container was connected to pipeline two in vaporizer and preheater by working medium pump and check valve enters interruption-forming circulation loop;
Circulation loop three is: the outlet of the pipeline two in condenser is connected to the entrance of cooling tower by valve, and what the outlet of cooling tower was connected to pipeline two in condenser by valve, cooling waterpump and check valve enters interruption-forming circulation loop;
Described vaporizer is provided with analog amount fluid level transmitter; Described working medium pump is provided with frequency conversion facility.
In circulation loop two, between the entrance of the outlet of the pipeline two in vaporizer and the pipeline one of condenser, a bypass tube and solenoid valve are added.
Vaporizer, preheater, condenser are all heat transmission equipments of shell of pipe type.
Hot water circulating pump, cooling waterpump are equipped with frequency conversion facility.
The utility model has the advantages that:
Accurately can show organic working medium fluid level condition in vaporizer; Adopt automatic control technology, precisely regulate working medium pump by frequency variator, reduce unnecessary working medium and enter vaporizer, make working medium maximize acting, and ensure that liquid container working medium is not evacuated cause power swing according to evaporation liquid level.Screw expansion motor is applicable to the fluid containing salt crust, is not afraid of fouling and pollution medium, and energy scale removal is self-cleaning; Screw expander is in thermal source pressure, temperature and flow wide fluctuations situation, and internal efficiency is substantially constant, can keep set steady, safe operation.The utility model structure is simply installed easily, simple to operate.Generator set take up an area little, highly versatile, can complete machine dress and mobile, the feature of suitable industrial exhaust heat and gas-to electricity.Maintenance and Repair are convenient.Owing to adopting permanent-magnet eddy current Flexible Transmission technology, achieve the non contact transmission of torque between source motivation to load, because without physical connection, the mechanical vibration caused by connection precision and noise reduce greatly.
The power equipment of the utility model generator set is twin-screw expander, and it is a kind of full mobilization force equipment of positive displacement, can adapt to superheated vapor, saturated vapour, steam-water twin phases and hot water working medium.The utility model is for development of new, efficiently low-temperature waste heat power generation equipment, and improve China's energy utilization rate, energy-saving and emission-reduction, protection of the environment, all has great importance.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present utility model.
Wherein: hot water circulating pump 1, vaporizer 2, preheater 3, working medium pump 4, liquid container 5, cooling waterpump 6, condenser 7, main stop valve 8, solenoid valve 9, decompressor 10, generator 11, cooling tower 12.
Embodiment
Below in conjunction with Fig. 1, the utility model is described further.
The utility model is a kind of low-temperature waste heat power generation equipment adopting frequency conversion automatic control technology, and this equipment comprises thermal water source, vaporizer 2, preheater 3, liquid container 5, condenser 7, decompressor 10, generator 11 and cooling tower 12.Described power generating equipment is made up of three groups of circulation loops.Circulation loop one is heat supplying loop, and circulation loop two is generating and soft circulation circuit, and circulation loop three is cooling circuits.Wherein, circulation loop one is: the outlet of thermal water source is connected to the pipeline one in vaporizer 2 and preheater 3 by hot water circulating pump 1 and check valve, and the circuit entrance that the outlet of pipeline one is connected to thermal water source by valve again forms circulation loop.Circulation loop two is: the outlet of the pipeline two in vaporizer 2 and preheater 3 is by the entrance of main stop valve 8 connecting screw rod decompressor 10, and decompressor 10 drive electrical generators 11 running generating, the outlet of decompressor 10 connects the pipeline one in condenser 7 by valve.The outlet of the pipeline one of condenser 7 connects liquid container 5, and what the outlet of liquid container 5 was connected to pipeline two in vaporizer 2 and preheater 3 by working medium pump 4 and check valve enters interruption-forming circulation loop.Vaporizer 2 outlet vapor is close to saturation state.Liquid container 5 under condenser 7 can ensure that condensed fluid is drained in time, does not occupy heat transfer space.Between the entrance of the outlet of the pipeline two in vaporizer 2 and the pipeline one of condenser 7, added a bypass tube and solenoid valve 9, its effect is bypass screw expander 10, can reduce rapidly decompressor 10 two ends pressure reduction, for the safe operation of unit is given security.During decompressor 10 driving, bypass solenoid valve 9 opened automatically by control apparatus.Bypass solenoid valve 9 is open in usual, access electrical interface together with working medium pump 4, and when power is off, solenoid valve 9 is opened and bypass is opened.Circulation loop three is: the outlet of the pipeline two in condenser 7 is connected to the entrance of cooling tower 12 by valve, and what the outlet of cooling tower 12 was connected to pipeline two in condenser 7 by valve, cooling waterpump 6 and check valve enters interruption-forming circulation loop.
Allly be provided with in the equipment of pipeline one and pipeline two above-mentioned, the flow direction of the pipeline one in each equipment and the fluid in pipeline two is all contrary.
This equipment has the heat transmission equipment of three shell of pipe type, is flooded evaporator 2, preheater 3, condenser 7 respectively.Wherein preheater 3 can ensure that liquid refrigerant has enough sensible heats to absorb, and vaporizer 2 heat exchange efficiency of full-liquid type is high, has higher evaporating temperature, and working medium pressure drop is less and evaporating temperature is even.
Working medium pump 4, hot water circulating pump 1, cooling waterpump 6 are equipped with frequency conversion facility, adopt VFC.By adjusting the frequency of pump, change is exerted oneself.
The important designing points of the utility model is also: on vaporizer 2, be provided with analog amount fluid level transmitter; Analog amount fluid level transmitter accurately can show evaporation liquid level and send signal to control system, control system compares with setting value according to level parameter signal, by the frequency conversion facility on working medium pump, working medium liquid level is regulated, control the liquid measure that organic working medium enters vaporizer 2 in real time.Described analog amount fluid level transmitter and control system are prior art, no longer describe in detail in this specification.
Working procedure of the present utility model is:
The high-temperature residual heat hot water that thermal water source exports, by hot water circulating pump 1, enters vaporizer 2 and preheater 3 successively, carries out heat exchange, transfer heat to organic working medium with organic working medium; The high-pressure gaseous organic matter that vaporizer 2 produces enters the import of the twin-screw expander 10 of low-temperature electricity-generating unit, promotes decompressor 10 High Rotation Speed, expansion working generating and pushing generator 11 operates.The low-pressure gas-liquid two-phase organic working medium of discharging after acting enters condenser 7, and under the effect of cooling waterpump 6, low-temperature cooling water enters condenser 7, cooling tower 12 cools Posterior circle and uses.Organic working medium in condenser 7 is cooled to low temperature liquid, pressurizes afterwards through working medium pump 4, liquid power generation medium is sent in preheater 3 and vaporizer 2, and continue the heat drawing waste heat, vaporizer 2 vaporization cycle uses.Condenser 7, owing to fully reclaiming the exhaust steam heat of decompressor 10, enters the Temperature of Working before preheater 3 and can improve more than 6 DEG C.The higher temperatures cooling water that condenser 7 is discharged is delivered to cooling tower 12 through cooling waterpump 6 and is cooled Posterior circle use.
In low temperature exhaust heat field, adopt organic working medium (ORC) as working medium and less than the 90 DEG C low-temperature water heating heat exchange of thermodynamic cycle, after organic working medium heat absorption, produce high pressure steam, promote double-work medium decompressor drive electrical generators and generate electricity.This is that conventional electric power generation technology can not be accomplished (conventional electric power generation requires that heat source temperature is more than 350 DEG C), thus widened the residual heat resources scope that can reclaim generating greatly, the low temperature exhaust heat for industries such as building materials, metallurgy, chemical industry reclaims and provides better technological means and equipment.Meanwhile, this technology can also be generalized to (as geothermal power, solar energy and biomass energy) in renewable energy power generation equipment, provides novel technical method for utilizing renewable energy power generation.
Claims (4)
1. adopt a low-temperature waste heat power generation equipment for frequency conversion automatic control technology, comprise vaporizer (2), preheater (3), liquid container (5), condenser (7), decompressor (10), generator (11) and cooling tower (12); It is characterized in that: described power generating equipment is made up of three groups of circulation loops, and circulation loop one is heat supplying loop, circulation loop two is generating and soft circulation circuit, and circulation loop three is cooling circuits;
Circulation loop one is: the outlet of thermal water source is connected to the pipeline one in vaporizer (2) and preheater (3) by hot water circulating pump (1) and check valve, and the circuit entrance that the outlet of pipeline one is connected to thermal water source by valve again forms circulation loop;
Circulation loop two is: the outlet of the pipeline two in vaporizer (2) and preheater (3) is by the entrance of main stop valve (8) connecting screw rod decompressor (10), decompressor (10) drive electrical generators (11) running generating, the outlet of decompressor (10) connects the pipeline one in condenser (7) by valve; The outlet of the pipeline one of condenser (7) connects liquid container (5), and what the outlet of liquid container (5) was connected to pipeline two in vaporizer (2) and preheater (3) by working medium pump (4) and check valve enters interruption-forming circulation loop;
Circulation loop three is: the outlet of the pipeline two in condenser (7) is connected to the entrance of cooling tower (12) by valve, and what the outlet of cooling tower (12) was connected to pipeline two in condenser (7) by valve, cooling waterpump (6) and check valve enters interruption-forming circulation loop;
Described vaporizer (2) is provided with analog amount fluid level transmitter; Described working medium pump (4) is provided with frequency conversion facility.
2. power generating equipment according to claim 1, it is characterized in that: in circulation loop two, between the entrance of the outlet of the pipeline two in vaporizer (2) and the pipeline one of condenser (7), a bypass tube and solenoid valve (9) are added.
3. power generating equipment according to claim 1, is characterized in that: vaporizer (2), preheater (3), condenser (7) are all heat transmission equipments of shell of pipe type.
4. power generating equipment according to claim 1, is characterized in that: (6) are equipped with frequency conversion facility for hot water circulating pump (1), cooling waterpump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420712999.8U CN204267120U (en) | 2014-11-25 | 2014-11-25 | Adopt the low-temperature waste heat power generation equipment of frequency conversion automatic control technology |
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| CN201420712999.8U CN204267120U (en) | 2014-11-25 | 2014-11-25 | Adopt the low-temperature waste heat power generation equipment of frequency conversion automatic control technology |
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| CN204267120U true CN204267120U (en) | 2015-04-15 |
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| CN201420712999.8U Expired - Fee Related CN204267120U (en) | 2014-11-25 | 2014-11-25 | Adopt the low-temperature waste heat power generation equipment of frequency conversion automatic control technology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473299A (en) * | 2017-09-29 | 2017-12-15 | 四川德胜集团钒钛有限公司 | A kind of Metallurgical Waste Water frequency conversion circulatory system |
| CN108729967A (en) * | 2017-04-25 | 2018-11-02 | 国家电投集团科学技术研究院有限公司 | Nuclear power generating system and its control method |
| CN111636937A (en) * | 2020-06-22 | 2020-09-08 | 中国长江动力集团有限公司 | ORC power generation device with automatic liquid level adjustment function and adjusting method thereof |
| WO2023029419A1 (en) * | 2021-09-01 | 2023-03-09 | 中兴通讯股份有限公司 | Two-phase liquid cooling testing system and method |
| CN117469839A (en) * | 2023-12-22 | 2024-01-30 | 上海优华系统集成技术股份有限公司 | Overhead gas waste heat full recovery system and full recovery method |
-
2014
- 2014-11-25 CN CN201420712999.8U patent/CN204267120U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729967A (en) * | 2017-04-25 | 2018-11-02 | 国家电投集团科学技术研究院有限公司 | Nuclear power generating system and its control method |
| CN108729967B (en) * | 2017-04-25 | 2024-02-06 | 国家电投集团科学技术研究院有限公司 | Nuclear power generation system and control method thereof |
| CN107473299A (en) * | 2017-09-29 | 2017-12-15 | 四川德胜集团钒钛有限公司 | A kind of Metallurgical Waste Water frequency conversion circulatory system |
| CN111636937A (en) * | 2020-06-22 | 2020-09-08 | 中国长江动力集团有限公司 | ORC power generation device with automatic liquid level adjustment function and adjusting method thereof |
| WO2023029419A1 (en) * | 2021-09-01 | 2023-03-09 | 中兴通讯股份有限公司 | Two-phase liquid cooling testing system and method |
| CN117469839A (en) * | 2023-12-22 | 2024-01-30 | 上海优华系统集成技术股份有限公司 | Overhead gas waste heat full recovery system and full recovery method |
| CN117469839B (en) * | 2023-12-22 | 2024-03-26 | 上海优华系统集成技术股份有限公司 | Overhead gas waste heat full recovery system and full recovery method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Haiyan Document name: Notification of Termination of Patent Right |
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| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20191125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |