CN102226604A - High-temperature vapor heat pump system for generating vapor by utilizing low-grade waste heat - Google Patents
High-temperature vapor heat pump system for generating vapor by utilizing low-grade waste heat Download PDFInfo
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- CN102226604A CN102226604A CN2011101464989A CN201110146498A CN102226604A CN 102226604 A CN102226604 A CN 102226604A CN 2011101464989 A CN2011101464989 A CN 2011101464989A CN 201110146498 A CN201110146498 A CN 201110146498A CN 102226604 A CN102226604 A CN 102226604A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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Abstract
The invention discloses a high-temperature vapor heat pump system for generating vapor by utilizing low-grade waste heat, which comprises a heat pump circulating device and a water vapor generation circulating device, wherein the heat pump system recycles the industrial waste heat (20-40 DEG C) and exhausts the heat in a condenser; water on the other side absorbs the heat to be evaporated into the 80 DEG C water vapor; the heat is absorbed by a heat regenerator and becomes overheated vapor under the negative pressure; the overheated vapor is supplied to industrial production through the pressurization of a water vapor compressor, thereby recycling the industrial waste heat and solving the problem that a common heat pump cannot generate vapor below 100 DEG C, which is an innovative system form. The invention has the innovation points that the heat pump system with excellent energy saving performance is combined with the water vapor generation circulation; and the water vapor is generated under the negative pressure, and the waste heat is fully utilized and recycled and the problems which cannot be overcome by the common heat pump are solved.
Description
Technical field
The present invention relates to a kind of high-temperature steam heat pump device that utilizes low grade residual heat to produce steam, especially utilize industrial waste heat (20 ℃～40 ℃) to produce the high-temperature steam heat pump of steam.
Background technology
Waste heat is under certain economic technology condition, the energy that is not utilized in using energy source equipment, just unnecessary, the discarded energy.It comprises high-temp waste gas waste heat, cooling medium waste heat, waste vapour waste water residual heat, high-temperature product and afterheat of slags, chemical reaction waste heat, combustible exhaust gas waste liquid and waste material waste heat and high-pressure fluid overbottom pressure etc.According to investigation, the waste heat total resources of every profession and trade account for the 17%-67% of its fuel consumption total amount, and the residual heat resources of recyclable utilization are about 60% of waste heat total resources.Along with industrial enterprise the eliminate outmoded production capacity propelling of work and the startup in succession of technological transformation project, continuing to bring out of novel waste heat recovery technology, the high temperature heat pump technology is exactly wherein a kind of, and high temperature heat pump is exactly a kind of very otherwise effective technique of industrial exhaust heat that is used for reclaiming.Heat pump is to be cost to consume a part of high mass-energy (mechanical energy, electric energy etc.) or high temperature potential energy, by thermodynamic cycle, heat energy is transferred to the energy utility system of high temp objects by cryogenic object.Constantly be applied to the recovery of various waste heats, heat recovery technology will have been given play to more, more important role at aspects such as economize on electricity, water saving, joint vapour.
Further developing of China's industry, the demand of steam be in continuous increase, and because the energy in short supply, supply to steam does not catch up with demand, and the price of steam has just exceeded many than in the past, how to provide to produce needed steam, and the energy energy savings, become the focus that people pay close attention to
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of low grade residual heat that utilizes that can utilize industrial waste heat to solve the needed steam problem of production to produce the high-temperature steam heat pump of steam, this system can effectively reclaim industrial waste heat, the energy to waste carries out recuperation of heat, and having solved common heat pump simultaneously can't be lower than the defective that produces steam under 100 ℃ the condition.
For achieving the above object, the technical solution used in the present invention is: comprise the evaporimeter that is connected with industrial wastewater, the outlet of evaporimeter is connected by the inlet of gas-liquid separator with the heat pump circulating system compressor, the outlet of described compressor is connected by the inlet of pipeline with heater, condenser, reservoir, device for drying and filtering and evaporimeter successively, the water inlet of described condenser also links to each other with running water by the road, and the delivery port of condenser is connected with water vapour compression machine through regenerator.
Heating power expansion valve also is installed on the pipeline between device for drying and filtering of the present invention and the evaporimeter.
Two stop valves also are installed on the condenser running water inlet duct, between two stop valves, pressure-reducing valve are installed.
Described compressor adopts semi-hermetic screw compressor, and compressor also is connected with oil cooler by the road.
Moisturizing in the middle of described water vapour compression machine adopts guarantees that the temperature of compression process can be too not high.
The present invention produces the method for steam:
Vapour-liquid two-phase mixture after the throttling enters into evaporimeter, in evaporimeter, absorb the heat in the industrial wastewater, regulate heating power expansion valve and guarantee the rational degree of superheat, make cold-producing medium evaporation becoming superheated vapor, through in compressor, being compacted into the gas of HTHP behind the gas-liquid separator, in condenser, emit heat then, the water of opposite side absorbs heat of vaporization, become water vapour, high pressure refrigerant liquid after being cooled enters reservoir, and the cold-producing medium behind the reservoir of flowing through is held back through super-dry and behind the impurity inside filtering out and become the vapour-liquid two-phase mixture.
Water is through after the decompression, the water heat that the absorption refrigeration agent is discharged condenser that flows to condenser from stop valve, evaporation becomes and is lower than saturated atmosphere and presses pairing lower temperature water vapour, flow through and become superheated vapor behind the regenerator, in water vapour compression machine, be compacted into the steam of HTHP then, can satisfy industrial demand.
The present invention adopts heat pump cycle and water vapour to produce the mode that circulation combines, be in the steam generator water to be become 0.47bar at condenser earlier, low temperature and low pressure steam about 80 ℃ becomes the industrial process waters steam of HTHP after the compression through water vapour compression machine.
The invention solves at present can only fire coal or the combustion gas present situation of producing steam, provide a kind of industrial waste heat (20 ℃～40 ℃) that utilizes to produce steam, reduction is to the consumption of the energy, proposition produces the method for steam in negative pressure (absolute pressure is 0.47bar), effectively reclaimed industrial waste heat, in conjunction with heat pump, realized perfect combination with superior energy saving.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Referring to Fig. 1, the present invention includes the evaporimeter 7 that is connected with industrial wastewater, the outlet of evaporimeter 7 is connected by the inlet of gas-liquid separator 8 with heat pump circulating system compressor 1, the outlet of described compressor 1 is connected by the inlet of pipeline with heater 2, condenser 3, reservoir 4, device for drying and filtering 5, heating power expansion valve 6 and evaporimeter 7 successively, described compressor 1 adopts semi-hermetic screw compressor, and compressor 1 also is connected with oil cooler 9 by the road.The water inlet of described condenser 3 also links to each other with running water by the road, on described condenser 3 running water inlet ducts, two stop valves 11 are installed also, between two stop valves 11 pressure-reducing valve 10 is installed, the delivery port of condenser 3 is connected with water vapour compression machine 12 through regenerator 2.
The cold-producing medium that the present invention uses is R245fa.
Operation principle of the present invention:
The high-temperature high-pressure refrigerant gas that heat pump circulating system compressor 1 is discharged enters regenerator 2, cooling in regenerator 2, the heat of discharging makes water vapour become superheated vapor, the cooling of cold-producing medium is carried out in condenser 3, high pressure refrigerant liquid after being cooled enters reservoir 4, the device for drying and filtering 5 of flowing through then, through super-dry and the cold-producing medium after filtering enter heating power expansion valve 6, after throttling, become the vapour-liquid two-phase mixture.The cold-producing medium of vapour-liquid two-phase enters into evaporimeter 7, absorbs the heat in the industrial wastewater in evaporimeter 7, makes cold-producing medium evaporation becoming superheated vapor, gets back to compressor 1 through behind the gas-liquid separator 8.
Pressure reduced after water flow through pressure-reducing valve 10, flow to condenser 3 (steam generator) from stop valve 11 then, the heat that water absorption refrigeration agent in the steam generator is discharged, evaporation becomes to being lower than saturated atmosphere presses pairing lower temperature water vapour, through becoming superheated vapor after regenerator 2 heating, in water vapour compression machine 12, be compacted into the steam of HTHP then, can satisfy industrial demand.
The cold-producing medium that the present invention uses is R245fa.
In the condenser 3 of the present invention, water be under negative pressure (absolute pressure is 0.47bar) down evaporation become saturated vapor under this pressure.
The water vapour that water vapour compression machine of the present invention is discharged is 2bar, 200 ℃.
Claims (5)
1. high-temperature steam heat pump that utilizes low grade residual heat to produce steam, it is characterized in that: comprise the evaporimeter (7) that is connected with industrial wastewater, the outlet of evaporimeter (7) is connected by the inlet of gas-liquid separator (8) with heat pump circulating system compressor (1), the outlet of described compressor (1) is successively by pipeline and heater (2), condenser (3), reservoir (4), the inlet of device for drying and filtering (5) and evaporimeter (7) is connected, the water inlet of described condenser (3) also links to each other with running water by the road, and the delivery port of condenser (3) is connected with water vapour compression machine (12) through regenerator (2).
2. the high-temperature steam heat pump that utilizes low grade residual heat to produce steam according to claim 1 is characterized in that: on the pipeline between described device for drying and filtering (5) and the evaporimeter (7) heating power expansion valve (6) is installed also.
3. the high-temperature steam heat pump that utilizes low grade residual heat to produce steam according to claim 1, it is characterized in that: on described condenser (3) the running water inlet duct two stop valves (11) are installed also, pressure-reducing valve (10) is installed between two stop valves (11).
4. the high-temperature steam heat pump that utilizes low grade residual heat to produce steam according to claim 1 is characterized in that: described compressor (1) adopts semi-hermetic screw compressor, and compressor (1) also is connected with oil cooler (9) by the road.
5. the high-temperature steam heat pump that utilizes low grade residual heat to produce steam according to claim 1 is characterized in that: moisturizing in the middle of described water vapour compression machine (12) adopts guarantees that the temperature of compression process can be too not high.
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| CN2011101464989A CN102226604A (en) | 2011-06-01 | 2011-06-01 | High-temperature vapor heat pump system for generating vapor by utilizing low-grade waste heat |
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| CN2011101464989A CN102226604A (en) | 2011-06-01 | 2011-06-01 | High-temperature vapor heat pump system for generating vapor by utilizing low-grade waste heat |
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Cited By (25)
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|---|---|---|---|---|
| CN102406306A (en) * | 2011-11-28 | 2012-04-11 | 天津市职业大学 | Heat pump type shampoo bed capable of recycling waste heat |
| CN102435016A (en) * | 2011-11-04 | 2012-05-02 | 石家庄工大化工设备有限公司 | Method for directly recycling waste gas and waste heat of dryer by utilizing compression heat pump |
| CN102494525A (en) * | 2011-12-15 | 2012-06-13 | 石家庄工大化工设备有限公司 | Process utilizing steam jet pump to recover waste heat of exhaust gas of dryer indirectly |
| CN102494526A (en) * | 2011-12-15 | 2012-06-13 | 石家庄工大化工设备有限公司 | Method for directly recovering waste gas and waste heat of dryer by utilizing steam jet pump |
| CN102506573A (en) * | 2011-11-04 | 2012-06-20 | 石家庄工大化工设备有限公司 | Method for indirectly recovering waste gas and waste heat of dryer by compression heat pump |
| CN102620475A (en) * | 2012-04-09 | 2012-08-01 | 浙江大学 | Multifunctional solar-assisted carbon dioxide heat pump system |
| CN102967121A (en) * | 2012-11-30 | 2013-03-13 | 山东科院天力节能工程有限公司 | Lignite drying system and technology with superheated steam capable of recycling waste steam heat |
| WO2014058449A1 (en) * | 2012-10-08 | 2014-04-17 | Clean Energy Systems, Inc. | Near zero emissions production of clean high pressure steam |
| CN105492842A (en) * | 2013-06-24 | 2016-04-13 | Lg化学株式会社 | Heat recovery apparatus |
| CN106500516A (en) * | 2016-12-22 | 2017-03-15 | 杨胜东 | A kind of negative pressure is from cooling steam compression heat pump and its system |
| CN106969523A (en) * | 2017-05-05 | 2017-07-21 | 江苏科技大学 | A kind of single-stage of selection natural refrigerant/overlapping double-standard high temperature heat pump system |
| JP2017156055A (en) * | 2016-03-04 | 2017-09-07 | 富士電機株式会社 | Heat pump type steam generation device |
| CN107676999A (en) * | 2017-09-07 | 2018-02-09 | 中国科学院理化技术研究所 | Large temperature span heat pump |
| CN107965753A (en) * | 2016-10-19 | 2018-04-27 | 华北电力大学（保定） | One kind utilizes low-temperature industrial hot water production vapor device |
| CN108072029A (en) * | 2016-11-16 | 2018-05-25 | 华北电力大学（保定） | A kind of steam generating system of recovery boiler smoke discharging residual heat |
| CN108302843A (en) * | 2017-12-21 | 2018-07-20 | 上海交通大学 | Steam and hot water alliance air energy boiler system |
| CN108386827A (en) * | 2018-04-06 | 2018-08-10 | 无锡诚尔鑫环保装备科技有限公司 | A kind of steam generation facility and its application method using waste heat |
| CN109724294A (en) * | 2019-02-02 | 2019-05-07 | 天津商业大学 | A kind of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit |
| CN109827419A (en) * | 2019-02-20 | 2019-05-31 | 中国科学院理化技术研究所 | A kind of big temperature of air-source is across high-temperature heat pump drying system |
| CN109869937A (en) * | 2019-01-25 | 2019-06-11 | 济南大森制冷设备有限公司 | A kind of steam, Hot water units |
| CN112325254A (en) * | 2020-11-06 | 2021-02-05 | 淄博能源研究院 | Steam generating device for recovering waste heat of low-temperature tail gas |
| CN112833695A (en) * | 2021-02-20 | 2021-05-25 | 重庆合得拢食品有限公司 | Brine heat energy recycling device |
| CN114036688A (en) * | 2021-11-25 | 2022-02-11 | 云南电网有限责任公司电力科学研究院 | Static modeling method of high-temperature steam heat pump |
| CN114216110A (en) * | 2021-12-24 | 2022-03-22 | 上海诺通新能源科技有限公司 | Heat pump assisted heating step waste heat recovery steam generation system and working method thereof |
| CN114353364A (en) * | 2022-01-12 | 2022-04-15 | 西安交通大学 | High-temperature steam generation system and method |
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| CN102506573A (en) * | 2011-11-04 | 2012-06-20 | 石家庄工大化工设备有限公司 | Method for indirectly recovering waste gas and waste heat of dryer by compression heat pump |
| CN102435016A (en) * | 2011-11-04 | 2012-05-02 | 石家庄工大化工设备有限公司 | Method for directly recycling waste gas and waste heat of dryer by utilizing compression heat pump |
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| CN102406306A (en) * | 2011-11-28 | 2012-04-11 | 天津市职业大学 | Heat pump type shampoo bed capable of recycling waste heat |
| CN102494526B (en) * | 2011-12-15 | 2014-03-12 | 石家庄工大化工设备有限公司 | Method for directly recovering waste gas and waste heat of dryer by utilizing steam jet pump |
| CN102494525B (en) * | 2011-12-15 | 2014-01-29 | 石家庄工大化工设备有限公司 | Process utilizing steam jet pump to recover waste heat of exhaust gas of dryer indirectly |
| CN102494526A (en) * | 2011-12-15 | 2012-06-13 | 石家庄工大化工设备有限公司 | Method for directly recovering waste gas and waste heat of dryer by utilizing steam jet pump |
| CN102494525A (en) * | 2011-12-15 | 2012-06-13 | 石家庄工大化工设备有限公司 | Process utilizing steam jet pump to recover waste heat of exhaust gas of dryer indirectly |
| CN102620475A (en) * | 2012-04-09 | 2012-08-01 | 浙江大学 | Multifunctional solar-assisted carbon dioxide heat pump system |
| CN102620475B (en) * | 2012-04-09 | 2014-06-18 | 浙江大学 | Multifunctional solar-assisted carbon dioxide heat pump system |
| WO2014058449A1 (en) * | 2012-10-08 | 2014-04-17 | Clean Energy Systems, Inc. | Near zero emissions production of clean high pressure steam |
| CN102967121A (en) * | 2012-11-30 | 2013-03-13 | 山东科院天力节能工程有限公司 | Lignite drying system and technology with superheated steam capable of recycling waste steam heat |
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| EP3015794A4 (en) * | 2013-06-24 | 2017-04-19 | LG Chem, Ltd. | Heat recovery apparatus |
| CN105492842A (en) * | 2013-06-24 | 2016-04-13 | Lg化学株式会社 | Heat recovery apparatus |
| US9612045B2 (en) | 2013-06-24 | 2017-04-04 | Lg Chem, Ltd. | Heat recovery apparatus |
| JP2017156055A (en) * | 2016-03-04 | 2017-09-07 | 富士電機株式会社 | Heat pump type steam generation device |
| CN107965753A (en) * | 2016-10-19 | 2018-04-27 | 华北电力大学（保定） | One kind utilizes low-temperature industrial hot water production vapor device |
| CN108072029A (en) * | 2016-11-16 | 2018-05-25 | 华北电力大学（保定） | A kind of steam generating system of recovery boiler smoke discharging residual heat |
| CN106500516A (en) * | 2016-12-22 | 2017-03-15 | 杨胜东 | A kind of negative pressure is from cooling steam compression heat pump and its system |
| CN106500516B (en) * | 2016-12-22 | 2018-08-07 | 北京瑞宝利热能科技有限公司 | A kind of negative pressure is from cooling steam compression heat pump and its system |
| CN106969523A (en) * | 2017-05-05 | 2017-07-21 | 江苏科技大学 | A kind of single-stage of selection natural refrigerant/overlapping double-standard high temperature heat pump system |
| CN107676999A (en) * | 2017-09-07 | 2018-02-09 | 中国科学院理化技术研究所 | Large temperature span heat pump |
| CN108302843A (en) * | 2017-12-21 | 2018-07-20 | 上海交通大学 | Steam and hot water alliance air energy boiler system |
| CN108386827A (en) * | 2018-04-06 | 2018-08-10 | 无锡诚尔鑫环保装备科技有限公司 | A kind of steam generation facility and its application method using waste heat |
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| CN109869937B (en) * | 2019-01-25 | 2023-10-03 | 济南大森制冷设备有限公司 | Steam and hot water unit |
| CN109724294A (en) * | 2019-02-02 | 2019-05-07 | 天津商业大学 | A kind of opened water steam heat pump and the cold-heat combined system of cascade refrigeration unit |
| CN109827419A (en) * | 2019-02-20 | 2019-05-31 | 中国科学院理化技术研究所 | A kind of big temperature of air-source is across high-temperature heat pump drying system |
| CN109827419B (en) * | 2019-02-20 | 2020-10-27 | 中国科学院理化技术研究所 | Air source large-temperature cross-high-temperature heat pump drying system |
| CN112325254A (en) * | 2020-11-06 | 2021-02-05 | 淄博能源研究院 | Steam generating device for recovering waste heat of low-temperature tail gas |
| CN112833695A (en) * | 2021-02-20 | 2021-05-25 | 重庆合得拢食品有限公司 | Brine heat energy recycling device |
| CN112833695B (en) * | 2021-02-20 | 2022-07-01 | 重庆合得拢食品有限公司 | Brine heat energy recycling device |
| CN114036688A (en) * | 2021-11-25 | 2022-02-11 | 云南电网有限责任公司电力科学研究院 | Static modeling method of high-temperature steam heat pump |
| CN114216110A (en) * | 2021-12-24 | 2022-03-22 | 上海诺通新能源科技有限公司 | Heat pump assisted heating step waste heat recovery steam generation system and working method thereof |
| CN114216110B (en) * | 2021-12-24 | 2024-08-23 | 上海诺通新能源科技有限公司 | Heat pump assisted heating step waste heat recovery steam generation system and working method thereof |
| CN114353364A (en) * | 2022-01-12 | 2022-04-15 | 西安交通大学 | High-temperature steam generation system and method |
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Application publication date: 20111026 |