CN104034086A - Large-sized concentrated refrigerating equipment for coal-fired unit and refrigerating method for large-sized concentrated refrigerating equipment - Google Patents
Large-sized concentrated refrigerating equipment for coal-fired unit and refrigerating method for large-sized concentrated refrigerating equipment Download PDFInfo
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- CN104034086A CN104034086A CN201410256820.7A CN201410256820A CN104034086A CN 104034086 A CN104034086 A CN 104034086A CN 201410256820 A CN201410256820 A CN 201410256820A CN 104034086 A CN104034086 A CN 104034086A
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
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- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses large-sized concentrated refrigerating equipment for a coal-fired unit and a refrigerating method for the large-sized concentrated refrigerating equipment. The large-sized concentrated refrigerating equipment comprises a first heat exchanger, a first hot water pipeline, a second hot water pipeline and a plurality of absorption refrigerators; the first heat exchanger is connected in series with a generating set of a large-sized coal-fired power plant and a boiler; the first hot water pipeline is connected with a hot water outlet of the first heat exchanger and buried for a long distance; the second hot water pipeline is connected with an inlet of the first heat exchanger and buried for a long distance; the absorption refrigerators are arranged and connected between the first hot water pipeline and the second hot water pipeline in parallel; each absorption refrigerator is communicated with an air conditioning system of a user. The refrigerating method comprises the step: high temperature steam, generated by the boiler, is subjected to heat exchange after thermal conversion with the generating unit of the large-sized coal-fired power plant, so as to form high temperature water to be outputted to the absorption refrigerators to be used for refrigerating in summer.
Description
Technical field
The present invention relates to a kind of Large-sized Coal-fired Power group central refrigerating equipment.
Background technology
Supply of cooling, heating and electrical powers is to grow up on the basis of cogeneration of heat and power.This technology produces the heat energy of high-quality by fuel combustion, enter the thermal technology such as steam turbine or gas turbine conversion equipment and produce electric energy, utilizes the low-quality heat energy that did merit simultaneously, in the winter time to user's heat supply, drives Absorption Refrigerator to carry out refrigeration heat in summer.This technology, except having every advantage of cogeneration of heat and power, also has primary energy, the energy cascade utilization of saving, alleviates atmosphere pollution and improve the features such as environmental quality.But the current use of this technology is the steam that directly uses the output of the thermal technology such as steam turbine or gas turbine conversion equipment, and steam crushing in course of conveying is larger, make bleeding or exhaust parameter raising of power generator turbine or gas turbine, cause unit efficiency to decline, fed distance is short, the bad recovery of condensate water can only be freezed among a small circle, can not be promoted.
Summary of the invention
The object of the present invention is to provide a kind of Large-sized Coal-fired Power group central refrigerating equipment and refrigerating method thereof, this equipment is during taking hot water as refrigerant, can use compared with the steam turbine of low parameter or gas turbine is bled or exhaust, and unit efficiency improves, fed distance is far away, makes central cooling expanded range.
The second hot water pipeline that the first hot water pipeline that the long distance that Large-sized Coal-fired Power group central refrigerating equipment in the present invention includes and is connected in series the first heat exchanger of large-scale coal-fired power plant generating set and boiler, is connected with described the first heat exchanger hot water output port is buried underground, the long distance being connected with described the first heat exchanger heat water input are buried underground, and being arranged in parallel several Absorption Refrigerators between described the first hot water pipeline and the second hot water pipeline, described each Absorption Refrigerator is communicated with each user's air-conditioning system.
Described the first heat exchanger includes multiple heat exchangers for district heatings that are set up in parallel, described heat exchangers for district heating includes a steam cooling box, be provided with cooling water pipe in described steam cooling box inside, described steam cooling box is provided with a steam inlet, and at least one condensation-water drain, described steam inlet is communicated with the steam output pipe of described large-scale coal-fired power plant generating set, described condensation-water drain is communicated with the cooling water pipeline of described boiler, and form the water circulation of a sealing, described cooling water pipe and described the first hot water pipeline, the second hot water pipeline and Absorption Refrigerator form the water circulation of a sealing.
Described steam cooling box is the cooling tower of a sealing, and the steam that described large-scale coal-fired power plant generating set produces enters in described cooling tower by the mode of spraying, and described cooling water pipe is placed in described cooling tower inside in the mode of spiraling.
Described each Absorption Refrigerator is provided with the first valve with one end that described the first hot water pipeline is connected, and described each Absorption Refrigerator is provided with the second valve with one end that described the second hot water pipeline is connected.
Described each Absorption Refrigerator is parallel with the second heat exchanger outdoors at described the first valve, second valve.
The hydraulic pressure of carrying in described the first hot water pipeline is less than or equal to 1.6Mpa, and water temperature is between 120 DEG C-140 DEG C, and the water temperature of the conveying in described the second hot water pipeline is between 60 DEG C-80 DEG C.
Between described large-scale coal-fired power plant generating set and boiler, be in series with steam superheater.
The refrigerating method of the medium-and-large-sized coal-fired unit central refrigerating equipment of the present invention is that the high-temperature steam that boiler is produced carries out heat exchange after the large-scale generating set thermal technology of coal-fired power plant conversion, forms high-temperature water and exports Absorption Refrigerator to, for freezing summer.
The hydraulic pressure of inputting before described Absorption Refrigerator is less than or equal to 1.6Mpa, and water temperature, between 120 DEG C-140 DEG C, is exported the water temperature of described Absorption Refrigerator between 60 DEG C-80 DEG C.
It is 100,000 kilowatts of (30,000 standard ton) central refrigerating stations that medium-and-large-sized the present invention coal-fired unit central refrigerating equipment is applied to an installed capacity, provides cold source of air conditioning to user, can reach the advantage of following energy-saving and emission-reduction:
1, reduce power consumption approximately 4,900 ten thousand degree for low-temperature receiver electricity refrigeration every year;
2, reduce and use approximately 1.7 ten thousand tons/year of standard coals, approximately 50,000 tons/year of carbon dioxide of minimizing discharge; Reduce approximately 170 tons/year of sulfur dioxide of discharge;
3, approximately 1,880,000 tons/year of using water wisely.
Brief description of the drawings
Fig. 1 is the structural representation of the medium-and-large-sized coal-fired unit central refrigerating equipment of the present invention in the time freezing summer.
Fig. 2 is the structural representation of the medium-and-large-sized coal-fired unit central refrigerating equipment of the present invention while heating in the winter time.
Fig. 3 is the structural representation of the first heat exchanger in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment in the present invention is elaborated.
As depicted in figs. 1 and 2, the medium-and-large-sized coal-fired unit central refrigerating equipment of the present invention includes and is connected in series the first heat exchanger 3 of large-scale coal-fired power plant generating set 1 and boiler 2, is connected with the first heat exchanger 3 hot water output ports and grows apart from the first hot water pipeline 4 of burying underground, is connected and grows apart from the second hot water pipeline 5 of burying underground with the first heat exchanger 3 hot water input ports, and be arranged in parallel three Absorption Refrigerators 6 between the first hot water pipeline 4 and the second hot water pipeline 5, the present embodiment is taking three as example, but not as limit, can arrange according to demand.Each Absorption Refrigerator 6 is communicated with each user's air-conditioning system 11.
Respectively be provided with the first valve 7 and the second valve 8 at Absorption Refrigerator 6 and the first hot water pipeline 4, the second hot channel 5 junctions, and be parallel with the second heat exchanger 9 at the input of the first valve 7 and the output of the second valve 8, the water producing after the heat exchange of this second heat exchanger 9 is directly connected with user's air-conditioning system, can heat in the winter time time, user is heated.
As shown in Figure 1, between large-scale coal-fired power plant generating set 1 and boiler 2, be in series with steam superheater 12, for the steam of boiler output is carried out to Detection & Controling.Each Absorption Refrigerator 6 comprises evaporimeter and absorber, for absorbing the heat from the first hot water pipeline 4 hot water, formation temperature cold water between 10 DEG C～15 DEG C outputs to each user's air-conditioning system 11, and converting temperature warm water between 60 DEG C-80 DEG C to after heat absorption, hot water in the first hot water pipeline 4 is transmitted back to the second hot water pipeline 5, and be further transmitted back to the high-temperature steam of exporting with boiler 2 in the first heat exchanger 3 and do heat exchange, form hydraulic pressure and be less than or equal to 1.6Mpa, the high-temperature water of temperature between 120 DEG C-140 DEG C exported from the first hot water pipeline 4.
As shown in Figure 3, the first heat exchanger 3 includes multiple heat exchangers for district heatings that are set up in parallel 30, each heat exchangers for district heating 30 includes a steam cooling box, this steam cooling box is the cooling tower of a sealing, be provided with at least two steam inlets 32 at the top of steam cooling box, and be provided with spray head at the inner top of steam cooling box, the steam that boiler 2 is exported is entered in cooling tower (steam cooling box) in the mode of spray, in steam cooling box, be provided with many cooling water pipes 31 arranged side by side, every cooling water pipe is an independently closed conduct, unified and the first waterpipe 4 after cooling water pipe 31 exports steam cooling box to, the second hot water pipeline 5 is tightly connected, every cooling water pipe 31 is placed in cooling tower inside in the staggered stacked mode of spiraling, to increase the area that in the interior cooling water of cooling water pipe 31 and steam cooling box, steam carries out heat exchange.Steam inlet 32 is communicated with the steam output pipe of large-scale coal-fired power plant generating set through control valve, and further with steam turbine between condenser be connected, at least be provided with two condensation-water drains 33 in the bottom of steam cooling box, after handing over, the cooling water heat in the steam in steam cooling box and cooling water pipe 31 forms condensed water on the outer wall of cooling water pipe 31, this condensed water is exported through condensation-water drain 33, is directly transmitted back to boiler 2 and uses.So, the water and steam in boiler 2, steam turbine 1 and steam cooling box is the circulation of an independent sealing, and the water route of circulation is short, and the condensed water producing after steam-condensation can be directly used in boiler 2.And cooling water pipe 31 and the first hot water pipeline 4, user and the second hot water pipeline 5 form the circulation of a sealing, and can directly use current heating, refrigeration plant, transform without the heating to user, refrigeration plant, saved a large amount of construction costs.
Separately, the water reclaiming from user's heating, refrigeration plant cannot enter into the interior use of boiler 2, the steam of power plant's output originally can only directly discharge after user uses, or do other uses, and in the present invention, reuse the water of power plant itself, save in a large number water resource, and also saved the filter plant set into boiler water-filling, significantly saved cost and water resource.
As shown in figures 1 and 3, the high-temperature water vapor that boiler 2 is exported is directly inputted the first heat exchanger 3 inside after steam turbine 1 thermal technology's conversion, by and be connected on cooling water pipe between the first hot water pipeline 4, the second hot water pipeline 5 31 and carry out heat exchange with the cooling water in cooling water pipe 31, the thermal source that makes to supply with Absorption Refrigerator is water quality, taking hot water as medium, thereby can use compared with the bleeder steam of low parameter or exhaust, unit efficiency improves, fed distance is large, can reach 20-30 kilometer, make central cooling expanded range.
Utilize the refrigeration plant in the present invention to freeze for user to user's heat supply, summer in the winter time, utilize winter pipe network high-temperature water to user's heat supply, carry high-temperature water with same set of pipe network summer, utilizes absorption refrigeration unit to prepare cold water for user.Save greatly pipe network investment, heat supply network is efficiently utilized, really realized the cascade utilization of the energy.
Claims (10)
1. a Large-sized Coal-fired Power group central refrigerating equipment, it is characterized in that, the second hot water pipeline that the first hot water pipeline that the long distance that includes and be connected in series the first heat exchanger of large-scale coal-fired power plant generating set and boiler, is connected with described the first heat exchanger hot water output port is buried underground, the long distance being connected with described the first heat exchanger heat water input are buried underground, and being arranged in parallel several Absorption Refrigerators between described the first hot water pipeline and the second hot water pipeline, described each Absorption Refrigerator is communicated with each user's air-conditioning system.
2. Large-sized Coal-fired Power group central refrigerating equipment according to claim 1, it is characterized in that, described the first heat exchanger includes multiple heat exchangers for district heatings that are set up in parallel, described heat exchangers for district heating includes a steam cooling box, be provided with cooling water pipe in described steam cooling box inside, described steam cooling box is provided with a steam inlet, and at least one condensation-water drain, described steam inlet is communicated with the steam output pipe of described large-scale coal-fired power plant generating set, described condensation-water drain is communicated with the cooling water pipeline of described boiler, and form the water circulation of a sealing, described cooling water pipe and described the first hot water pipeline, the second hot water pipeline and Absorption Refrigerator form the water circulation of a sealing.
3. Large-sized Coal-fired Power group central refrigerating equipment according to claim 2, it is characterized in that, described steam cooling box is the cooling tower of a sealing, the steam that described large-scale coal-fired power plant generating set produces enters in described cooling tower by the mode of spraying, and described cooling water pipe is placed in described cooling tower inside in the mode of spiraling.
4. according to the Large-sized Coal-fired Power group central refrigerating equipment described in claim 2 or 3, it is characterized in that, described each Absorption Refrigerator is provided with the first valve with one end that described the first hot water pipeline is connected, and described each Absorption Refrigerator is provided with the second valve with one end that described the second hot water pipeline is connected.
5. according to the Large-sized Coal-fired Power group central refrigerating equipment described in claim 2 or 3, it is characterized in that, described each Absorption Refrigerator is parallel with the second heat exchanger outdoors at described the first valve, second valve.
6. according to the Large-sized Coal-fired Power group central refrigerating equipment described in claim 2 or 3, it is characterized in that, the hydraulic pressure of carrying in described the first hot water pipeline is less than or equal to 1.6Mpa, and water temperature is between 120 DEG C-140 DEG C, and the water temperature of the conveying in described the second hot water pipeline is between 60 DEG C-80 DEG C.
7. Large-sized Coal-fired Power group central refrigerating equipment according to claim 1, is characterized in that, between described large-scale coal-fired power plant generating set and boiler, is in series with steam superheater.
8. the refrigerating method of the Large-sized Coal-fired Power group central refrigerating equipment described in above-mentioned any claim, it is characterized in that, the high-temperature steam that boiler is produced enters and in the first heat exchanger, carries out heat exchange after the large-scale generating set thermal technology of coal-fired power plant conversion, form high-temperature water and export Absorption Refrigerator to, for freezing summer.
9. the refrigerating method of the coal-fired unit central refrigerating of type according to claim 8 equipment, it is characterized in that, the hydraulic pressure of inputting before described Absorption Refrigerator is less than or equal to 1.6Mpa, and water temperature, between 120 DEG C-140 DEG C, is exported the water temperature of described Absorption Refrigerator between 60 DEG C-80 DEG C.
10. the refrigerating method of the coal-fired unit central refrigerating of type according to claim 9 equipment, it is characterized in that, described the first heat exchanger includes multiple heat exchangers for district heatings that are set up in parallel, described heat exchangers for district heating includes a steam cooling box, be provided with cooling water pipe in described steam cooling box inside, described steam cooling box is provided with a steam inlet, and at least one condensation-water drain, described steam inlet is communicated with the steam output pipe of described large-scale coal-fired power plant generating set, described condensation-water drain is communicated with the cooling water pipeline of described boiler, and form the water circulation of a sealing, described cooling water pipe and described the first hot water pipeline, the second hot water pipeline and Absorption Refrigerator form the water circulation of a sealing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410256820.7A CN104034086B (en) | 2014-06-11 | 2014-06-11 | Large-sized concentrated refrigerating equipment for coal-fired unit and refrigerating method for large-sized concentrated refrigerating equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410256820.7A CN104034086B (en) | 2014-06-11 | 2014-06-11 | Large-sized concentrated refrigerating equipment for coal-fired unit and refrigerating method for large-sized concentrated refrigerating equipment |
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| CN104034086A true CN104034086A (en) | 2014-09-10 |
| CN104034086B CN104034086B (en) | 2017-01-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266402A (en) * | 2014-10-20 | 2015-01-07 | 青岛橡建工程设计有限公司 | Steam flash recycling device |
| CN105627778A (en) * | 2016-03-28 | 2016-06-01 | 西安热工研究院有限公司 | Evaporative cooling system for indirect air-cooling unit cold-end system |
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| JP2013231393A (en) * | 2012-04-27 | 2013-11-14 | Toshiba Corp | Steam turbine plant |
| CN103670548A (en) * | 2013-12-04 | 2014-03-26 | 大连葆光节能空调设备厂 | Heat and power cogeneration central heating system based on heat pump |
| CN103758660A (en) * | 2013-12-27 | 2014-04-30 | 陕西大唐新能电力设计有限公司 | Generator gas engine energy comprehensive utilization method |
| CN203949407U (en) * | 2014-06-11 | 2014-11-19 | 内蒙古京能盛乐热电有限公司 | Large-sized Coal-fired Power group central refrigerating equipment |
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2014
- 2014-06-11 CN CN201410256820.7A patent/CN104034086B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101949612A (en) * | 2010-08-27 | 2011-01-19 | 清华大学 | Cooling mode driven by utilizing urban heat supply network |
| JP2013231393A (en) * | 2012-04-27 | 2013-11-14 | Toshiba Corp | Steam turbine plant |
| CN103670548A (en) * | 2013-12-04 | 2014-03-26 | 大连葆光节能空调设备厂 | Heat and power cogeneration central heating system based on heat pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266402A (en) * | 2014-10-20 | 2015-01-07 | 青岛橡建工程设计有限公司 | Steam flash recycling device |
| CN104266402B (en) * | 2014-10-20 | 2017-07-25 | 青岛橡建工程设计有限公司 | Steam flash recycle device |
| CN105627778A (en) * | 2016-03-28 | 2016-06-01 | 西安热工研究院有限公司 | Evaporative cooling system for indirect air-cooling unit cold-end system |
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| CN104034086B (en) | 2017-01-25 |
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