CN104034086B - 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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- CN104034086B CN104034086B CN201410256820.7A CN201410256820A CN104034086B CN 104034086 B CN104034086 B CN 104034086B CN 201410256820 A CN201410256820 A CN 201410256820A CN 104034086 B CN104034086 B CN 104034086B
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- hot water
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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 grows up on the basis of cogeneration of heat and power.This technology produces high-quality by fuel combustion
Heat energy, enter thermal technology's conversion equipment such as steam turbine or gas turbine produce electric energy, simultaneously using the low-quality heat energy doing work(,
In the winter time to user's heat supply, Absorption Refrigerator is driven to carry out refrigeration heat in summer.This technology is except having each of cogeneration of heat and power
Item advantage, the features such as also having saving primary energy, energy cascade utilization, mitigate atmospheric pollution and improve environmental quality.But
The current use of this technology is the steam directly being exported using thermal technology's conversion equipment such as steam turbine or gas turbine, and steam is defeated
During sending crushing larger so that the pumping of power generator turbine or gas turbine or exhaust parameter improve, cause under unit efficiency
Fall, fed distance is short, the bad recovery of condensate, can only freeze it is impossible to be promoted in a small range.
Content of the invention
It is an object of the invention to provide a kind of Large-sized Coal-fired Power group central refrigerating equipment and its refrigerating method, this equipment with
When hot water is refrigerant, can be evacuated or aerofluxuss using compared with the steam turbine of low parameter or gas turbine, unit efficiency improves,
Fed distance remote so that central cooling expanded range.
Large-sized Coal-fired Power group central refrigerating equipment in the present invention includes and is connected in series large-scale coal-fired power plant electromotor
The first hot water that the distance that the first heat exchanger of group and boiler is connected with described first heat exchanger hot water output port is buried
The second hot water pipeline that the distance that pipeline is connected with described first heat exchanger hot water input port is buried, and be arranged in parallel
Several Absorption Refrigerators between described first hot water pipeline and the second hot water pipeline, each Absorption Refrigerator described
Connect the air conditioning system of each user.
Described first heat exchanger includes multiple heat exchangers for district heatings being set up in parallel, and described heat exchangers for district heating includes one
Steam cooling box, is internally provided with cooling water pipe in described steam cooling box, and described steam cooling box is provided with a steaming
The steam of vapour entrance, and at least one condensation-water drain, described steam inlet and described large-scale coal-fired power plant generating set
Outlet tube connects, and described condensation-water drain is connected with the cooling water pipeline of described boiler, and forms the water circulation of a closing, institute
State cooling water pipe and described first hot water pipeline, the second hot water pipeline and Absorption Refrigerator form the water circulation of a closing.
Described steam cooling box is the cooling tower of a closing, the steam that described large-scale coal-fired power plant generating set produces
Enter in described cooling tower by way of injection, described cooling water pipe is placed in inside described cooling tower in the way of spiraling.
One end that each Absorption Refrigerator described is connected with described first hot water pipeline is provided with the first valve, described each
One end that Absorption Refrigerator is connected with described second hot water pipeline is provided with the second valve.
Each Absorption Refrigerator described has second heat exchanger in described first valve, the second valve loong shunt.
In described first hot water pipeline, the hydraulic pressure of conveying is less than or equal to 1.6mpa, and water temperature is between 120 DEG C -140 DEG C, described
The water temperature of the conveying in the second hot water pipeline is between 60 DEG C -80 DEG C.
It is in series with steam superheater between described large-scale coal-fired power plant generating set and boiler.
The refrigerating method of the present invention medium-and-large-sized coal unit central refrigerating equipment is the high-temperature steam producing boiler through big
Carry out heat exchange after type coal-fired power plant generating set thermal technology conversion, form high-temperature water and export to Absorption Refrigerator, for summer
Refrigeration uses.
Input the hydraulic pressure before described Absorption Refrigerator and be less than or equal to 1.6mpa, water temperature, between 120 DEG C -140 DEG C, exports
The water temperature of described Absorption Refrigerator is between 60 DEG C -80 DEG C.
Medium-and-large-sized for present invention coal unit central refrigerating equipment application is 100,000 kilowatts in an installed capacity, and (30,000 is cold
Ton) central refrigerating station, provide a user with cold source of air conditioning, the advantage that can reach following energy-saving and emission-reduction:
1st, reduce about 49,000,000 degree of power consumption being used for low-temperature receiver electricity refrigeration every year；
2nd, reduce using about 1.7 ten thousand tons/year of standard coals, reduce about 50,000 tons/year of carbon dioxide of discharge；Reduce discharge about 170
Ton/year sulfur dioxide；
3rd, about 1,880,000 tons/year of using water wisely.
Brief description
Fig. 1 is the structural representation in cooling in summer for the present invention medium-and-large-sized coal unit central refrigerating equipment.
Fig. 2 is the structural representation when present invention medium-and-large-sized coal unit central refrigerating equipment heats in the winter time.
Fig. 3 is the structural representation of first heat exchanger in the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment in the present invention is elaborated.
As depicted in figs. 1 and 2, the present invention medium-and-large-sized coal unit central refrigerating equipment includes and is connected in series large-scale fire coal
The first heat exchanger 3 of generator sets in power plant 1 and boiler 2 is connected with first heat exchanger 3 hot water output port and distance is buried
If the first hot water pipeline 4 be connected with first heat exchanger 3 hot water input port and distance bury the second hot water pipeline 5, with
And it is 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 with three
As a example individual, but it is not limited thereto, can arrange according to demand.Each Absorption Refrigerator 6 connects the air conditioning system of each user
11.
It is respectively provided with the first valve 7 and second in Absorption Refrigerator 6 and the first hot water pipeline 4, the second hot channel 5 junction
Valve 8, and the outfan of the input in the first valve 7 and the second valve 8 is parallel with the second heat exchanger 9, this second heat exchanger 9
Heat exchange after produce water be directly connected with the air conditioning system of user, when can heat in the winter time, user is heated.
As shown in figure 1, being in series with steam superheater 12 between large-scale coal-fired power plant generating set 1 and boiler 2, it is used for
Detection ＆ Controling are carried out to the steam of boiler output.Each Absorption Refrigerator 6 includes vaporizer and absorber, for absorbing
The heat of hot water in the first hot water pipeline 4, forms the air-conditioning that temperature cold water between 10 DEG C～15 DEG C exports each user
System 11, and the hot water in the first hot water pipeline 4 is converted into temperature warm water between 60 DEG C -80 DEG C after heat absorption and is transmitted back to
Second hot water pipeline 5, and be transmitted back to further in first heat exchanger 3 and make heat exchange with the high-temperature steam of boiler 2 output, formed
Hydraulic pressure is less than or equal to 1.6mpa, and high-temperature water between 120 DEG C -140 DEG C for the temperature exports from the first hot water pipeline 4.
As shown in figure 3, first heat exchanger 3 includes multiple heat exchangers for district heatings 30 being set up in parallel, each heat supply network heats
Device 30 includes a steam cooling box, and this steam cooling box is the cooling tower of a closing, at the top of steam cooling box
It is provided with least two steam inlets 32, and be provided with spray head so that boiler 2 exports in the inner top of steam cooling box
Steam entered in the way of spraying in cooling tower (steam cooling box), be provided with steam cooling box many arranged side by side
Cooling water pipe 31, every cooling water pipe is an independent closed conduct, exports to steam cooling box in cooling water pipe 31
Unification is tightly connected with the first waterpipe 4, the second hot water pipeline 5 afterwards, and every cooling water pipe 31 is in the way of staggered being stacked of spiraling
It is placed in inside cooling tower, to increase the area that cooling water and steam in steam cooling box in cooling water pipe 31 carry out heat exchange.
Steam inlet 32 is connected with the steam output pipe of large-scale coal-fired power plant generating set through control valve, and further with steam turbine
Between condenser connect, in the bottom of steam cooling box at least provided with two condensation-water drains 33, when in steam cooling box
Cooling water heat in steam and cooling water pipe 31 forms condensed water after handing on the outer wall of cooling water pipe 31, and this condensed water is condensed
Water out 33 exports, and is directly transmitted back to boiler 2 and uses.So, the water in boiler 2, steam turbine 1 and steam cooling box and steam
It is the circulation of an autonomous closure, the water route of circulation is short, and the condensed water producing after steam condensation is used directly for 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 closing and permissible
Directly use current heating, refrigeration plant, the heating of user, refrigeration plant need not be transformed, save substantial amounts of building
It is set as this.
Separately, the water reclaiming from user's heating, refrigeration plant cannot be introduced into using in boiler 2, the steaming of script power plant output
Vapour can only directly discharge after user's use, or makees other uses, and reuses the water of power plant itself in the present invention, great Liang Jie
About water resource, and also save the filter plant set for boiler water-filling, significantly save cost and provided with water
Source.
As shown in figures 1 and 3, the high-temperature water vapor of boiler 2 output directly inputs the first heat after steam turbine 1 thermal technology conversion
Inside exchanger 3, by the cooling water pipe 31 and the cooling water pipe that are connected between the first hot water pipeline 4, the second hot water pipeline 5
Cooling water in 31 carries out heat exchange so that the thermal source of supply Absorption Refrigerator is water quality, that is, with hot water as medium, thus can
Using the relatively bleeder steam of low parameter or aerofluxuss, unit efficiency improves, and fed distance is big, up to 20-30 kilometer so that concentrating
Cooling expanded range.
Using the refrigeration plant in the present invention can in the winter time to user's heat supply, summer supply user freeze, that is, winter utilize
Pipe network high-temperature water conveys high-temperature water to user's heat supply, summer with same set of pipe network, prepares cold water using absorption refrigeration unit and supplies
User uses.Greatly save pipe network to invest so that heat supply network efficient utilization, really realize the cascade utilization of the energy.
Claims (3)
1. a kind of Large-sized Coal-fired Power group central refrigerating equipment is sent out it is characterised in that including and being connected in series large-scale coal-fired power plant
Distance that the first heat exchanger of group of motors and boiler is connected with described first heat exchanger hot water output port bury first
The second hot water pipeline that the distance that hot water pipeline is connected with described first heat exchanger hot water input port is buried, and in parallel
It is arranged on several Absorption Refrigerators between described first hot water pipeline and the second hot water pipeline, each described absorption system
Cold connects the air conditioning system of each user, and described first heat exchanger includes multiple heat exchangers for district heatings being set up in parallel, described
Heat exchangers for district heating includes a steam cooling box, is internally provided with cooling water pipe in described steam cooling box, described steam
Cooling box is provided with a steam inlet, and at least one condensation-water drain, and described steam inlet is large-scale coal-fired with described
The steam output pipe connection of power plants generating electricity unit, described condensation-water drain is connected with the cooling water pipeline of described boiler, and is formed
The water circulation of one closing, described cooling water pipe and described first hot water pipeline, the second hot water pipeline and Absorption Refrigerator shape
Become the water circulation of a closing, described steam cooling box is the cooling tower of a closing, described large-scale coal-fired power plant electromotor
The steam that group produces enters in described cooling tower by way of injection, and described cooling water pipe is placed in described cold in the way of spiraling
But, inside tower, the hydraulic pressure of the described first conveying in hot water pipeline is less than or equal to 1.6mpa, water temperature between 120 DEG C -140 DEG C, institute
The water temperature stating conveying in the second hot water pipeline between 60 DEG C -80 DEG C, described large-scale coal-fired power plant generating set and boiler
Between be in series with steam superheater.
2. Large-sized Coal-fired Power group central refrigerating equipment according to claim 1 is it is characterised in that each described absorption system
One end that cold is connected with described first hot water pipeline is provided with the first valve, and each described Absorption Refrigerator is warm with described second
One end that waterpipe connects is provided with the second valve.
3. Large-sized Coal-fired Power group central refrigerating equipment according to claim 2 is it is characterised in that each described absorption system
Cold has second heat exchanger in described first valve, the second valve loong shunt.
Priority Applications (1)
| 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 |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
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| CN104034086A CN104034086A (en) | 2014-09-10 |
| CN104034086B true CN104034086B (en) | 2017-01-25 |
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| CN201410256820.7A Active 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101949612B (en) * | 2010-08-27 | 2012-11-14 | 清华大学 | Cooling mode driven by utilizing urban heat supply network |
| JP5885576B2 (en) * | 2012-04-27 | 2016-03-15 | 株式会社東芝 | 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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