CN100458314C - Low temperature heat energy recovery and utilization technology - Google Patents
Low temperature heat energy recovery and utilization technology Download PDFInfo
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- CN100458314C CN100458314C CNB2007100153473A CN200710015347A CN100458314C CN 100458314 C CN100458314 C CN 100458314C CN B2007100153473 A CNB2007100153473 A CN B2007100153473A CN 200710015347 A CN200710015347 A CN 200710015347A CN 100458314 C CN100458314 C CN 100458314C
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- heat exchanger
- boiler
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Abstract
A low-grade heat recovery utilization technology relates to a cryogenic heat exchanger, a hot water pump, a heat exchanger, a heat pump, a waste heat boiler, a heater and an expansion valve. The technology collects the used low temperature steam and condensed water to the cryogenic heat exchanger, and forms a circulation with the heat exchanger through pipelines. One pipeline is communicated with the heat exchanger and meanwhile communicated with the heater via a three-way pipe, and then connected with the waste heat boiler via the heater. The other pipeline is returned to the cryogenic heat exchanger through the heat exchanger, so as to realize the circulation from the cryogenic heat exchanger to the heat exchanger and then from the heat exchanger to the cryogenic heat exchanger. Energy bearing agent is filled in the heat exchanger, and two pipelines are also equipped between the heat exchanger and waste heat boiler. One of the pipelines is connected with the waste heat boiler via the heat pump to supply heat to the waste heat boiler; and the other pipeline is connected with the expansion valve from the returned pipeline from the waste heat boiler via the heater, and then returned to the heat exchanger. The invention can remarkably reduce industrial heat emission and reduce industrial water consumption through ingenuous design.
Description
Technical field:
The present invention relates to the thermal power transfer technology, relate in particular to the low-temperature heat energy recoverying and utilizing method.
Background technology:
The development of country and the development in the world, the demand of the energy is increasing, and the supply and demand of the energy is more and more severeer, and is when continually developing new forms of energy and alternative energy source, energy-saving and cost-reducing extremely urgent.At present, according to our investigation, the energy utilization rate of China has only about 40%, and a large amount of low-temperature heat energies is discharged in the atmosphere and goes, and greenhouse effects are more and more serious.The all requirements of international and domestic development situation must have new energy approach, must hang down the energy technology exploitation of potential temperature.
Summary of the invention:
Purpose of the present invention: research and develop a kind of low-temperature heat energy recoverying and utilizing method, be integrated as core, realize the extensive utilization of low temperature heat energy with heat pump techniques and synthetic heat pump fluid.Especially can be converted into the available energy to the low-temperature heat energy that present every profession and trade is discharged fully.
Low-temperature heat energy recoverying and utilizing method of the present invention includes cryogenic heat exchanger, heat exchanger, heat pump, waste heat boiler, heater, expansion valve and heat-exchanger pump and forms.Each comprises with Low Temperature Steam and the condensed water crossed being aggregated into cryogenic heat exchanger with the waste heat of heat unit, forms circulation by pipeline and heat exchanger.One road pipeline is connected heat exchanger, when connecting heat exchanger, connects heater by three-way pipe, connects waste heat boiler by heater again.Another road pipeline turns back to cryogenic heat exchanger by heat exchanger, realizes thus by cryogenic heat exchanger to heat exchanger, again by the circulation of heat exchanger to cryogenic heat exchanger.Be filled with heat pump fluid in the said heat exchanger, heat exchanger is to also being provided with the two-way pipeline between the waste heat boiler.Road pipeline wherein is connected with waste heat boiler by heat pump, to the waste heat boiler heat supply; Another road is the pipeline that is returned by waste heat boiler, through heater, connects expansion valve again, turns back to heat exchanger then.Low-temperature heat energy recoverying and utilizing method of the present invention is that low-temperature heat energy is carried out heat exchange by heat exchanger, the heat hot pump work substance, again by heat pump pressurized heat pump work substance, the heat pump fluid temperature is raise again, deliver to waste heat boiler, produce the superheated steam that can use.Heat pump fluid is from the waste heat boiler back heats cold lime set of coming out, and through expansion valve step-down, cooling, and absorbs behind the heat of heat exchanger by the heat pump intensification of boosting again.So constantly circulation just can be converted into the higher reusing of energy source of temperature to the lower energy of potential temperature.
Low-temperature heat energy recoverying and utilizing method of the present invention designs ingeniously, practical, can significantly reduce the discharging of industrial heat energy, reduces a large amount of waters of industry.
Description of drawings:
Accompanying drawing is the technological principle schematic diagram of low-temperature heat energy recoverying and utilizing method of the present invention.1-cryogenic heat exchanger 2-heat-exchanger pump 3-heat exchanger 4-heat pump 5-waste heat boiler 6-heater 7-expansion valve
The specific embodiment:
With reference to accompanying drawing, in conjunction with the embodiments, low-temperature heat energy recoverying and utilizing method principle of the present invention is described in detail as follows: low-temperature heat energy recoverying and utilizing method of the present invention includes cryogenic heat exchanger 1, heat-exchanger pump 2, heat exchanger 3, heat pump 4, waste heat boiler 5, heater 6 and expansion valve 7 and forms.Each comprises with Low Temperature Steam and the condensed water crossed being aggregated into the said cryogenic heat exchanger 1 of the present invention with the waste heat of heat unit, forms circulation by pipeline and heat exchanger 3.One road pipeline is connected heat exchanger 3, when connecting heat exchanger 3, connects heater 6 by three-way pipe, connects waste heat boiler 5 by heater 6 again.Another road pipeline turns back to cryogenic heat exchanger 1 by heat exchanger 3, realizes thus by cryogenic heat exchanger 1 to heat exchanger 3, again by the circulation of heat exchanger 3 to cryogenic heat exchanger 1.Be filled with heat pump fluid in the said heat exchanger 3, heat exchanger 3 also is provided with the two-way pipeline between the waste heat boiler 5.Road pipeline wherein is connected with waste heat boiler 5 by heat pump 4, to waste heat boiler 5 heat supplies; Another road pipeline is the pipeline that is returned by waste heat boiler 5, through heater 6, connects expansion valve 7 again, turns back to heat exchanger 3 then.Low-temperature heat energy recoverying and utilizing method of the present invention is low-temperature heat energy to be carried out heat exchange by heat exchanger 3, the heat hot pump work substance, again by heat pump 4 pressurized heat pump work substances, the heat pump fluid temperature is raise again, deliver to waste heat boiler 5, produce the superheated steam that can use.Heat pump fluid is from the waste heat boiler 5 back heats cold lime set of coming out, and through expansion valve 7 step-downs, cooling, and absorbs behind the heat of heat exchanger 3 by heat pump 4 intensification of boosting again.So constantly circulation just can be converted into the higher reusing of energy source of temperature to the lower energy of potential temperature.Low-temperature heat energy recoverying and utilizing method of the present invention designs ingeniously, practical, can significantly reduce the discharging of industrial heat energy, reduces a large amount of waters of industry.
Claims (4)
1, low-temperature heat energy recoverying and utilizing method is characterized in that each waste heat with heat unit, comprises with Low Temperature Steam and the condensed water crossed being aggregated into cryogenic heat exchanger (1), forms circulation by pipeline and heat exchanger (3); One road pipeline is connected heat exchanger (3), when connecting heat exchanger (3), connects heater (6) by three-way pipe, connects waste heat boiler (5) by heater (6) again.
2, low-temperature heat energy recoverying and utilizing method according to claim 1, it is characterized in that being filled with heat pump fluid in the heat exchanger (3), heat exchanger (3) is provided with the two-way pipeline between waste heat boiler (5), road pipeline wherein is connected with waste heat boiler (5) by heat pump (4), to waste heat boiler (5) heat supply; Another road pipeline is the pipeline that is returned by waste heat boiler (5), through heater (6), connects expansion valve (7) again, turns back to heat exchanger (3) then.
3, low-temperature heat energy recoverying and utilizing method according to claim 1, it is characterized in that low-temperature heat energy passes through heat exchanger (3) and carries out heat exchange, the heat hot pump work substance, again by heat pump (4) pressurized heat pump work substance, the heat pump fluid temperature is raise again, deliver to waste heat boiler (5), produce the superheated steam that can use.
4, low-temperature heat energy recoverying and utilizing method according to claim 1, it is characterized in that heat pump fluid is from waste heat boiler (5) the back heats cold lime set of coming out, through expansion valve (7) step-down, cooling, and absorb behind the heat of heat exchanger (3) again by heat pump (4) intensification of boosting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100153473A CN100458314C (en) | 2007-07-06 | 2007-07-06 | Low temperature heat energy recovery and utilization technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100153473A CN100458314C (en) | 2007-07-06 | 2007-07-06 | Low temperature heat energy recovery and utilization technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101105351A CN101105351A (en) | 2008-01-16 |
| CN100458314C true CN100458314C (en) | 2009-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100153473A Expired - Fee Related CN100458314C (en) | 2007-07-06 | 2007-07-06 | Low temperature heat energy recovery and utilization technology |
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| CN (1) | CN100458314C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588946A (en) * | 2012-03-19 | 2012-07-18 | 杭州哲达科技股份有限公司 | Self-balancing distributed type steam dragging method and self-balancing distributed type steam dragging system utilizing industrial circulating water waste heat |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520252B (en) * | 2009-03-26 | 2011-06-22 | 兖矿鲁南化肥厂 | Novel process for improving comprehensive utilization rate of low-temperature heat energy |
| GB2478569A (en) * | 2010-03-10 | 2011-09-14 | Spirax Sarco Ltd | Energy recovery unit with flash steam and condensate heat exchangers |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05240528A (en) * | 1992-02-28 | 1993-09-17 | Tokyo Gas Co Ltd | Heat pump and air conditioner |
| JPH08219585A (en) * | 1995-02-10 | 1996-08-30 | Mitsubishi Heavy Ind Ltd | Engine driven type air conditioning equipment |
| JPH11101518A (en) * | 1997-09-29 | 1999-04-13 | Fujita Corp | Heat source switching type air conditioner and heat source switching type air conditioning method |
| FR2856470A1 (en) * | 2003-06-23 | 2004-12-24 | Climastar | Heat pump installation for thermodynamic machine, has exchanger ensuring heat uptake to and exhaust of reagents using lower and upper exchangers respectively, where heat exchanges are produced by boiling/condensation of liquid/gas |
| DE202005014597U1 (en) * | 2005-09-14 | 2005-11-17 | Stiebel Eltron Gmbh & Co. Kg | A brine/water heat pump system has two separated circulation circuits connected through a heat exchanger providing heating and cooling without a mixer circuit |
| CN1710356A (en) * | 2005-06-21 | 2005-12-21 | 上海本家空调系统有限公司 | Heat-recovery energy-storage type water source heat pump |
| CN1769816A (en) * | 2004-10-26 | 2006-05-10 | 徐生恒 | Heat pump for extracting water energy |
| CN1967055A (en) * | 2006-08-25 | 2007-05-23 | 李华玉 | Backheating and heating technology by using residual heat of exhaust steam in steam power cycle |
-
2007
- 2007-07-06 CN CNB2007100153473A patent/CN100458314C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05240528A (en) * | 1992-02-28 | 1993-09-17 | Tokyo Gas Co Ltd | Heat pump and air conditioner |
| JPH08219585A (en) * | 1995-02-10 | 1996-08-30 | Mitsubishi Heavy Ind Ltd | Engine driven type air conditioning equipment |
| JPH11101518A (en) * | 1997-09-29 | 1999-04-13 | Fujita Corp | Heat source switching type air conditioner and heat source switching type air conditioning method |
| FR2856470A1 (en) * | 2003-06-23 | 2004-12-24 | Climastar | Heat pump installation for thermodynamic machine, has exchanger ensuring heat uptake to and exhaust of reagents using lower and upper exchangers respectively, where heat exchanges are produced by boiling/condensation of liquid/gas |
| CN1769816A (en) * | 2004-10-26 | 2006-05-10 | 徐生恒 | Heat pump for extracting water energy |
| CN1710356A (en) * | 2005-06-21 | 2005-12-21 | 上海本家空调系统有限公司 | Heat-recovery energy-storage type water source heat pump |
| DE202005014597U1 (en) * | 2005-09-14 | 2005-11-17 | Stiebel Eltron Gmbh & Co. Kg | A brine/water heat pump system has two separated circulation circuits connected through a heat exchanger providing heating and cooling without a mixer circuit |
| CN1967055A (en) * | 2006-08-25 | 2007-05-23 | 李华玉 | Backheating and heating technology by using residual heat of exhaust steam in steam power cycle |
Non-Patent Citations (1)
| Title |
|---|
| 空调冷凝热的回收利用. 余颖俊，王梦云.工程设计CAD与智能建筑，第8期. 2000 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588946A (en) * | 2012-03-19 | 2012-07-18 | 杭州哲达科技股份有限公司 | Self-balancing distributed type steam dragging method and self-balancing distributed type steam dragging system utilizing industrial circulating water waste heat |
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| Publication number | Publication date |
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| CN101105351A (en) | 2008-01-16 |
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