CN103175246B - The thermal substation thermal power circulatory system - Google Patents
The thermal substation thermal power circulatory system Download PDFInfo
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- CN103175246B CN103175246B CN201310140288.8A CN201310140288A CN103175246B CN 103175246 B CN103175246 B CN 103175246B CN 201310140288 A CN201310140288 A CN 201310140288A CN 103175246 B CN103175246 B CN 103175246B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 238000009835 boiling Methods 0.000 claims abstract description 13
- 239000008400 supply water Substances 0.000 claims abstract description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 7
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 7
- 239000004571 lime Substances 0.000 claims abstract description 7
- 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
- 239000003507 refrigerant Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The present invention discloses a kind of thermal substation thermal power circulatory system, the heater (5) that it has a low boiling point working medium is housed, and establish heat exchanger tube (9) in this heater, this pipe heat supply water end (W.E.) connects a secondary net supply channel; The outlet of above-mentioned heater accesses after-heater (4) by the road, also heat exchanger tube (10) is established in after-heater, in heat exchanger tube, medium is the cold-producing medium that source pump uses, 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 collected accesses condenser (7) by the road, the water end (W.E.) that supplies of the heat exchanger tube (11) of this condenser connects secondary returning water lines, low boiling point working medium in above-mentioned condenser (7) becomes liquid and squeezes into above-mentioned heater (5) again, circulating-heating through lime set circulating pump (8), pipeline.This device makes full use of the heat energy condition of the hot water of thermal substation, saves electric energy.Its equal heat energy is 20% of energy value, reduces operating cost.
Description
Technical field
The present invention relates to a kind of circulatory system, is a kind of system replacing electrical energy drive heating 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 present Thermal Corp is all power with electricity, natural in concentrated supply of heating in the city thermal substation exist high-temperature water and water at low temperature and self-loopa, utilize the temperature difference then 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 circulatory system, it replaces driven by power with low-cost hot water, and cost is low, reliable.
Technical scheme of the present invention is as follows:
A kind of thermal substation thermal power circulatory system, the heater that it has a low boiling point working medium is housed, establish heat exchanger tube in this heater, in this pipe, medium is high-temperature water, and this pipe heat supply water end (W.E.) connects a secondary net supply channel, and backwater end connects heat exchanger or a secondary net backwater; The outlet of above-mentioned heater accesses after-heater by the road, also heat exchanger tube is established in after-heater, in heat exchanger tube, medium is the cold-producing medium that source pump uses, the outlet of after-heater by the road, access steam turbine, low boiling point working medium passes into steam turbine with driving steam turbine by the running of shaft coupling drive water circulating pump by becoming high temperature and high pressure steam after heater, after-heater heating, turbine exhaust gas accesses condenser by the road and is condensed and becomes liquid, the water end (W.E.) that supplies of the heat exchanger tube of this condenser connects secondary returning water lines, and water side connects heat exchanger; Low boiling point working medium in above-mentioned condenser becomes liquid and squeezes into above-mentioned heater again through lime set circulating pump, pipeline, circulating-heating.
The heating system of its after-heater is made up of heating fumigators, pipeline, heat pump compressor group, pipeline, heat exchanger tube, expansion valve, filter, is full of 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 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 by its condensation after the exhaust collection of steam turbine, then get to heater through lime set pump, recycle.Once supply water in thermal substation and the self-loopa originally of secondary backwater, without the need to additional forced circulation, so make full use of the heat energy condition of the hot water of thermal substation, save electric energy.Its equal heat energy is 20% of energy value, reduces operating cost.
Accompanying drawing explanation
Fig. 1 is the invention process structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
In Fig. 1,1, heat pump compressor group, 2, steam turbine, 3, water circulating pump, 4, after-heater, 5, heater, 6, heating fumigators, 7, condenser, 8, lime set circulating pump, 9, heater heat exchanger tube, 10, after-heater heat exchanger tube, 11, heat exchange tube of condenser, 12, a secondary net supply channel, 13, expansion valve, 14, filter, 15, heating fumigators heat exchanger tube.
Can be seen by Fig. 1, a kind of thermal substation thermal power circulatory system, the heater 5 that it has a low boiling point working medium is housed, heat exchanger tube 9 is established 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 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 heat exchanger tube 10 is established in after-heater, in pipe, medium is the cold-producing medium that source pump uses, medium in after-heater accesses steam turbine 2 through pipeline after becoming high temperature and high pressure steam, drives water circulating pump 3 with driving steam turbine; Turbine exhaust gas accesses condenser 7 through pipeline after collecting, and interior medium managed by the heat exchanger tube 11 in this condenser is water at low temperature, and be connect secondary returning water lines for water end (W.E.), water side connects heat exchanger; Low boiling point working medium becomes liquid medium after condenser 7 cools.The medium of this condenser 7 squeezes into above-mentioned heater 5 again through lime set circulating pump 8, pipeline, circulating-heating.
Above-mentioned post bake system is made up of heating fumigators 6, pipeline, heat pump compressor group 1, pipeline, after-heater 4, expansion valve 13, filter 14.In the heat exchanger tube 15 of above-mentioned heating fumigators 6, medium is a high-temperature water, supplying hot water termination one secondary net supply channel, and 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, is source pump refrigerant in heat exchanger tube.
Operation principle: the water supply of thermal substation one secondary net enters heater 5 makes low boiling point working medium vaporize, vaporized media enters after-heater 4 increases pressure through post bake, then steam turbine pushing turbine blade rotation is entered, water circulating pump 3 is driven to operate, turbine exhaust gas becomes liquid medium after being cooled by condenser 7, liquid medium is squeezed into heater 5 again by lime set circulating pump 8 and is heated, and so uninterrupted circulation is finished the work.Condenser 7 cools water end (W.E.) and adopts secondary network backwater, and the secondary network part backwater of circulation is introduced into condenser before removing heat exchanger and enters heat exchanger again, does not have heat transmission equipment thermal substation directly can return major network.
This plant running 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 secondary network backwater temperature difference, the temperature difference need be improved, therefore add a set of heat pump and improve post bake actuator temperature, namely source pump 1 extracts a secondary net part current heat by heating fumigators 6, utilizes the heat that after-heater 4 release ratio one secondary net temperature is high, thus parameter when making medium temperature and pressure in after-heater reach the high and cold phase.
Source pump adopts steam turbine to drag simultaneously, but can cut.Namely steam turbine also drags source pump while dragging water circulating pump, and when during the high and cold phase, one secondary net supplies water and reaches requirement with secondary network backwater temperature difference, source pump and steam turbine are cut by shaft coupling or other devices, and now heat pump compressor group 1 does not start.
Claims (2)
1. a thermal substation thermal power circulatory system, it is characterized in that: it comprises the heater (5) that is equipped with low boiling point working medium, heat exchanger tube (9) is established in this heater, in this pipe, medium is high-temperature water, this pipe heat supply water end (W.E.) connects a secondary net supply channel, and backwater end connects heat exchanger or a secondary net backwater; The outlet of above-mentioned heater accesses after-heater (4) by the road, also heat exchanger tube (10) is established in after-heater, in heat exchanger tube, medium is the cold-producing medium that source pump uses, the outlet of after-heater accesses steam turbine (2) by the road, and steam turbine connects water circulating pump (3) by shaft coupling; The turbine exhaust gas collected accesses condenser (7) by the road, and the water end (W.E.) that supplies of the heat exchanger tube (11) of this condenser connects secondary returning water lines, and water side connects heat exchanger; Low boiling point working medium in above-mentioned condenser (7) becomes liquid and squeezes into above-mentioned heater (5) again, circulating-heating through lime set circulating pump (8), pipeline.
2. the thermal substation thermal power circulatory system according to claim 1, it is characterized in that: the heating system of its after-heater is made up of heating fumigators (6), pipeline, heat pump compressor group (1), pipeline, heat exchanger tube (10), expansion valve (13), filter (14), source pump refrigerant is full of in the heating system of after-heater, 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 backwater end connects heat exchanger or a secondary net backwater.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310140288.8A CN103175246B (en) | 2013-04-22 | 2013-04-22 | The thermal substation thermal power circulatory system |
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| CN201310140288.8A CN103175246B (en) | 2013-04-22 | 2013-04-22 | The thermal substation thermal power circulatory system |
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| CN103175246A CN103175246A (en) | 2013-06-26 |
| CN103175246B true CN103175246B (en) | 2015-08-12 |
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Families Citing this family (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 |
| 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 |
| 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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2013
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| 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 |
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