CN103175246A - Thermal power circulating pump of heating station - Google Patents
Thermal power circulating pump of heating station Download PDFInfo
- Publication number
- CN103175246A CN103175246A CN2013101402888A CN201310140288A CN103175246A CN 103175246 A CN103175246 A CN 103175246A CN 2013101402888 A CN2013101402888 A CN 2013101402888A CN 201310140288 A CN201310140288 A CN 201310140288A CN 103175246 A CN103175246 A CN 103175246A
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- heater
- heat exchanger
- circulating pump
- pipeline
- water
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000009835 boiling Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 239000008400 supply water Substances 0.000 claims description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 6
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 6
- 239000004571 lime Substances 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009183 running Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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Abstract
The invention discloses a thermal power circulating pump of a heating station. The thermal power circulating pump of the heating station is provided with a heater (5) with a low-boiling medium, wherein the heater (5) is internally provided with a heat exchange pipe (9), and the hot water supplying end of the pipe is connected with a primary net water supply pipeline; the outlet of the heater is connected to a secondary heater (4) through a pipeline, the secondary heater is also internally provided with a heat exchange pipe (10), the medium in the heat exchange pipe is a refrigerating fluid utilized by a heat pump unit, the outlet of the secondary heater is connected to a turbine (2) through the pipeline, and the turbine is connected with a circulating water pump (3) through a coupling; and the collected tail gas of the turbine is introduced to a condenser (7) through the pipeline, the water supply end of a heat exchange pipe (15) of the condenser is connected with a secondary water return pipeline, and the low-boiling medium in the condenser (7) is changed into a liquid so as to be pumped into the heater (5) through a condensate circulating pump (8) and the pipeline to be heated in a circulating manner. The thermal power circulating pump of a heating station fully utilizes a heat energy condition of hot water of the heating station, the electric energy is saved, and the price of the same heat energy is 20% of the price of electric energy, so that the operation cost is reduced.
Description
Technical field
The present invention relates to a kind of circulating pump, is a kind of pump that replaces electric energy driving confession thermal cycle in the thermal substation of concentrated supply of heating in the city with hot water specifically.
Background technology
The circulating pump of the pressurizing point of Thermal Corp is all take electricity as power now, concentrated supply of heating in the city thermal substation interior natural exist high-temperature water and water at low temperature and self-loopa, utilize the temperature difference can complete power conversion, minimum all more than 20 degree in a general secondary net supply water temperature and secondary network backwater temperature difference Heating Period, therefore possess switch condition.Thermal Corp's electricity consumption is market price, and very cheap with hot water.
Summary of the invention
The object of the present invention is to provide a kind of thermal substation thermal power circulating pump, it replaces driven by power with low-cost hot water, and cost is low, and is reliable.
Technical scheme of the present invention is as follows:
A kind of thermal substation thermal power circulating pump, it has a heater that low boiling point working medium is housed, and establishes heat exchanger tube in this heater, and in this pipe, medium is high-temperature water, and this pipe heat supply water end (W.E.) connects a secondary net supply channel, and the backwater end connects heat exchanger or a secondary net backwater; The outlet of above-mentioned heater accesses after-heater by the road, also establish heat exchanger tube in after-heater, in heat exchanger tube, medium is the cold-producing medium that source pump is used, the outlet of after-heater by the road, the access steam turbine, low boiling point working medium becomes high temperature and high pressure steam after by the heating of heater, after-heater and passes into steam turbine and drives water circulating pump with driving steam turbine by shaft coupling and turn round, turbine exhaust gas accesses by the road condenser and is condensed and becomes liquid, the water end (W.E.) that supplies of the heat exchanger tube of this condenser is to connect the secondary returning water lines, and the water side connects heat exchanger; Low boiling point working medium in above-mentioned condenser becomes liquid and squeezes into above-mentioned heater, circulating-heating through lime set circulating pump, pipeline again.
The heating system of its after-heater is to form the circulatory system by heating fumigators, pipeline, heat pump compressor group, pipeline, heat exchanger tube, expansion valve, filter, is full of the source pump refrigerant in system; The heat exchanger tube heat supply water end (W.E.) of this heating fumigators is a secondary net supply channel, and the backwater end connects heat exchanger or a secondary net backwater; In after-heater, heat exchanger tube is outward the low boiling high-temperature high-pressure medium of pushing turbine.
The invention has the advantages that: utilize the hot water heating medium of thermal substation itself to remove pushing turbine, and then drive circulating pump, use the water at low temperature of secondary backwater with its condensation after the exhaust collection of steam turbine, then get to heater through the lime set pump, recycle.Once supply water in thermal substation and the self-loopa originally of secondary backwater, need not to add forced circulation, so take full advantage of the heat energy condition of the hot water of thermal substation, saves energy.Its equal heat energy is 20% of energy value, reduces operating cost.
Description of drawings
Fig. 1 is the invention process structural representation.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
In Fig. 1,1, the heat pump compressor group, 2, steam turbine, 3, water circulating pump, 4, after-heater, 5, heater, 6, heating fumigators, 7, condenser, 8, the lime set circulating pump, 9, heater heat exchanger tube, 10, the after-heater heat exchanger tube, 11, heat exchange tube of condenser, 12, a secondary net supply channel, 13, expansion valve, 14, filter, 15, the heating fumigators heat exchanger tube.
Can be seen by Fig. 1, a kind of thermal substation thermal power circulating pump, it has a heater 5 that low boiling point working medium is housed, establish heat exchanger tube 9 in this heater, in pipe, medium is hot water, and this pipe heat supply water end (W.E.) connects a secondary net supply channel 12, and the backwater end connects heat exchanger or a secondary net backwater; The outlet of above-mentioned heater 5 accesses the after-heater 4 that low boiling point working medium is housed by the road, also establish heat exchanger tube 10 in after-heater, in pipe, medium is the cold-producing medium that source pump is used, medium in after-heater becomes high temperature and high pressure steam by pipeline access steam turbine 2, drives water circulating pump 3 with driving steam turbine; Turbine exhaust gas is collected by pipeline access condenser 7, and in heat exchanger tube 11 pipes in this condenser, medium is water at low temperature, is to connect the secondary returning water lines for water end (W.E.), and the water side connects heat exchanger; Low boiling point working medium becomes liquid medium after condenser 7 is cooling.The medium of this condenser 7 is squeezed into above-mentioned heater 5, circulating-heating again through lime set circulating pump 8, pipeline.
Above-mentioned post bake system is comprised of heating fumigators 6, pipeline, heat pump compressor group 1, pipeline, after-heater 4, expansion valve 13, filter 14.The interior medium of heat exchanger tube 15 of above-mentioned heating fumigators 6 is a high-temperature water, and supplying hot water termination one secondary net supply channel, backwater end connect heat exchanger or a secondary net backwater.In after-heater, heat exchanger tube is outward the low boiling high-temperature high-pressure medium of pushing turbine, is the source pump refrigerant in heat exchanger tube.
Operation principle: thermal substation one secondary net water supply enters heater 5 makes the low boiling point working medium vaporization, vaporized media enters after-heater 4 increases pressure through post bake, then enter steam turbine pushing turbine blade rotation, drive water circulating pump 3 runnings, become liquid medium after turbine exhaust gas is cooling by condenser 7, liquid medium is squeezed into heater 5 by lime set circulating pump 8 again and is heated, and so uninterrupted circulation is finished the work.The cooling water end (W.E.) of condenser 7 adopts the secondary network backwater, and the secondary network part backwater of circulation goes heat exchanger to be introduced into condenser before and enters heat exchanger again, does not have the heat transmission equipment thermal substation can directly return major network.
This device operation designed temperature difference is by high and cold phase mean temperature difference design, so in the low cold phase, because a secondary net supplies water less with the secondary network backwater temperature difference, need to improve the temperature difference, therefore add a cover heat pump and improve the post bake actuator temperature, be that source pump 1 is extracted a secondary net part current heat by heating fumigators 6, utilize the after-heater 4 release ratio one high heats of secondary net temperature, thus parameter when making the interior medium temperature of after-heater and pressure reach the high and cold phase.
Source pump adopts steam turbine to drag simultaneously, but can cut.Be that steam turbine also drags source pump when dragging water circulating pump, during the high and cold phase, one secondary net supplies water when reaching requirement with the secondary network backwater temperature difference, and source pump and steam turbine cut by shaft coupling or other devices, and heat pump compressor group 1 does not start at this moment.
Claims (2)
1. thermal substation thermal power circulating pump, it is characterized in that: it has a heater (5) that low boiling point working medium is housed, and establishes heat exchanger tube (9) in this heater, and in this pipe, medium is high-temperature water, this pipe heat supply water end (W.E.) connects a secondary net supply channel, and the backwater end connects heat exchanger or a secondary net backwater; The outlet of above-mentioned heater accesses after-heater (4) by the road, also establish heat exchanger tube (10) in after-heater, medium is the cold-producing medium that source pump is used in heat exchanger tube, the outlet of after-heater by the road, access steam turbine (2), steam turbine connects water circulating pump (3) by shaft coupling; The turbine exhaust gas of collecting accesses condenser (7) by the road, and the water end (W.E.) that supplies of the heat exchanger tube of this condenser (15) connects the secondary returning water lines, and the water side connects heat exchanger; Low boiling point working medium in above-mentioned condenser (7) becomes liquid and squeezes into above-mentioned heater (5), circulating-heating through lime set circulating pump (8), pipeline again.
2. thermal substation thermal power circulating pump according to claim 1, it is characterized in that: the heating system of its after-heater is the circulatory system that is made of heating fumigators (6), pipeline, heat pump compressor group (1), pipeline, heat exchanger tube (10), expansion valve (13), filter (14), be full of the source pump refrigerant in system, the interior heat supply water end (W.E.) of heat exchanger tube (15) of above-mentioned heating fumigators (6) is a secondary net supply channel, and the backwater end connects heat exchanger or a secondary net backwater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310140288.8A CN103175246B (en) | 2013-04-22 | 2013-04-22 | The thermal substation thermal power circulatory system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310140288.8A CN103175246B (en) | 2013-04-22 | 2013-04-22 | The thermal substation thermal power circulatory system |
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| Publication Number | Publication Date |
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| CN103175246A true CN103175246A (en) | 2013-06-26 |
| CN103175246B CN103175246B (en) | 2015-08-12 |
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| CN201310140288.8A Expired - Fee Related CN103175246B (en) | 2013-04-22 | 2013-04-22 | The thermal substation thermal power circulatory system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913535A (en) * | 2015-06-08 | 2015-09-16 | 大连冷冻机股份有限公司 | Large-sized screw refrigerating compressor unit driven by condensing steam turbine |
| CN105202610A (en) * | 2015-11-05 | 2015-12-30 | 临沂富达节能科技有限公司 | Heating system capable of expanding concentrated heating through heat pump technology |
| CN105423396A (en) * | 2015-12-16 | 2016-03-23 | 珠海格力电器股份有限公司 | Heating system and intermediate pump mechanism thereof |
| CN105910152A (en) * | 2016-04-22 | 2016-08-31 | 同济大学 | Regional heating energy-saving technology system and control method thereof |
| CN106434099A (en) * | 2016-11-18 | 2017-02-22 | 贵州省仁怀市茅台镇君丰酒业有限公司 | Brewing equipment with heating function |
| CN113375209A (en) * | 2021-06-28 | 2021-09-10 | 大唐环境产业集团股份有限公司 | Large temperature difference heat supply method and system for coal-fired unit coupling compression heat pump |
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| CN202531384U (en) * | 2012-04-06 | 2012-11-14 | 山东电力工程咨询院有限公司 | Coaxial arrangement structure of boiler feedwater booster pump and steam feed pump group |
| CN103017231A (en) * | 2012-12-11 | 2013-04-03 | 华电电力科学研究院 | Heat supply network water circulating pump energy-saving driving system of thermal power plant |
| CN203190486U (en) * | 2013-04-22 | 2013-09-11 | 赵向龙 | Heating energy power circulation pump of heating station |
-
2013
- 2013-04-22 CN CN201310140288.8A patent/CN103175246B/en not_active Expired - Fee Related
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4660511A (en) * | 1986-04-01 | 1987-04-28 | Anderson J Hilbert | Flue gas heat recovery system |
| JPH03121204A (en) * | 1989-10-02 | 1991-05-23 | Nkk Corp | Extraction condensation turbine system for district heating and cooling |
| US5555731A (en) * | 1995-02-28 | 1996-09-17 | Rosenblatt; Joel H. | Preheated injection turbine system |
| CN1587689A (en) * | 2004-07-15 | 2005-03-02 | 孟英志 | Method and device for generation by solar energy |
| US20090249779A1 (en) * | 2006-06-12 | 2009-10-08 | Daw Shien Scientific Research & Development, Inc. | Efficient vapor (steam) engine/pump in a closed system used at low temperatures as a better stirling heat engine/refrigerator |
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| US20100154419A1 (en) * | 2008-12-19 | 2010-06-24 | E. I. Du Pont De Nemours And Company | Absorption power cycle system |
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| CN203190486U (en) * | 2013-04-22 | 2013-09-11 | 赵向龙 | Heating energy power circulation pump of heating station |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913535A (en) * | 2015-06-08 | 2015-09-16 | 大连冷冻机股份有限公司 | Large-sized screw refrigerating compressor unit driven by condensing steam turbine |
| CN105202610A (en) * | 2015-11-05 | 2015-12-30 | 临沂富达节能科技有限公司 | Heating system capable of expanding concentrated heating through heat pump technology |
| CN105423396A (en) * | 2015-12-16 | 2016-03-23 | 珠海格力电器股份有限公司 | Heating system and intermediate pump mechanism thereof |
| CN105423396B (en) * | 2015-12-16 | 2018-04-20 | 珠海格力电器股份有限公司 | Heating system and intermediate pump mechanism thereof |
| CN105910152A (en) * | 2016-04-22 | 2016-08-31 | 同济大学 | Regional heating energy-saving technology system and control method thereof |
| CN106434099A (en) * | 2016-11-18 | 2017-02-22 | 贵州省仁怀市茅台镇君丰酒业有限公司 | Brewing equipment with heating function |
| CN113375209A (en) * | 2021-06-28 | 2021-09-10 | 大唐环境产业集团股份有限公司 | Large temperature difference heat supply method and system for coal-fired unit coupling compression heat pump |
| CN113375209B (en) * | 2021-06-28 | 2022-03-01 | 大唐环境产业集团股份有限公司 | Large temperature difference heat supply method and system for coal-fired unit coupling compression heat pump |
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| Publication number | Publication date |
|---|---|
| CN103175246B (en) | 2015-08-12 |
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