CN208703999U - Indirect air cooling generating set multistage steam exhaust cascade utilization heating system - Google Patents
Indirect air cooling generating set multistage steam exhaust cascade utilization heating system Download PDFInfo
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- CN208703999U CN208703999U CN201821117054.6U CN201821117054U CN208703999U CN 208703999 U CN208703999 U CN 208703999U CN 201821117054 U CN201821117054 U CN 201821117054U CN 208703999 U CN208703999 U CN 208703999U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- 238000001816 cooling Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000009434 installation Methods 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims description 29
- 239000007924 injection Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 8
- 125000004122 cyclic group Chemical group 0.000 claims description 6
- 210000004907 gland Anatomy 0.000 claims description 6
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
The utility model discloses a kind of indirect air cooling generating set multistage steam exhaust cascade utilization heating system, solve the problems, such as that indirect air cooling generating set makes full use of unit waste heat ability difference and operation expense and difficulty high present in the external heating.Space-heating installation (1) inputs the mouth of a river by the heat exchange of return pipe (9) and water water- to-water heat exchanger (3) and is connected together, the heat exchange output mouth of a river of water water- to-water heat exchanger (3) is connected together by water circulating pump (4) and the input terminal of first order jet type heat pump condenser (5), the output end of first order jet type heat pump condenser (5) and the input terminal of second level jet type heat pump condenser (6) are connected together, the output end of second level jet type heat pump condenser (6) and the input terminal of peak load calorifier (7) are connected together, the output end of peak load calorifier (7) is connected together by water supplying pipe (10) and the feed water inlet of space-heating installation (1).It reduces for thermal energy consumption and cost.
Description
Technical field
The utility model relates to a kind of CHP Heating Systems for indirect air cooling generating set, more particularly to one
Kind passes through multistage steam exhaust cascade utilization technology for indirect air cooling generating set, realizes the heating system that waste heat makes full use of.
Background technique
Indirect air cooling generating set is during realizing external heating, since indirect air cooling unit is compared with Direct Air-Cooled machine
There are the particularity of turbine low pressure cylinder steam discharge condensing mode for group, cause the directly utilization of indirect air cooling unit exhaust steam residual heat more tired
Difficulty makes it when carrying out external heating, and the Technical comparing that can be used is single, and utilization rate of waste heat is low, and heat cost is higher.
Currently, there are two types of the heat supply process that indirect air cooling generating set mainly uses: the first for only with Steam Turbine Through IP Admission steam discharge,
As the level-one heating system of heat medium, its main feature is that heating system is simple, operation is convenient, and system reliability is high, most
Number indirect air cooling generating set is used, but since this technology uses the higher intermediate pressure cylinder steam discharge of quality as heat medium, is deposited
In the defect for thermal energy consumption and higher cost, and due to high intermediate pressure cylinder steam discharge can the restricted requirement of steam consumption, cause available vapour
Amount is smaller, limits the heat capacity of unit；Second is cool circulation water waste heat and steam turbine between being extracted using absorption heat pump
Intermediate pressure cylinder steam discharge directly heats the two-stage heat-operated system of technology, its main feature is that realizing the utilization to unit waste heat, reduces confession
Thermal energy consumption and cost improve unit heat capacity, but due to having used absorption heat pump in this system, by its technical characterstic institute
Limit, the waste heat that can be extracted from cool circulation water account for about the 40% of absorption heat pump gross heat input, and utilization rate of waste heat is lower,
And that there are maintenance workloads is big for absorption heat pump, and waste heat recovery rate decays very fast problem, causes to transport in actual use
Row maintenance cost and difficulty increase.
Summary of the invention
The utility model provides a kind of indirect air cooling generating set multistage steam exhaust cascade utilization heating system, between solving
It connects air cooling turbo-generator and makes full use of unit waste heat ability difference and operation expense and difficulty present in the external heating
Spend high technical problem.
The utility model is to solve the above technical problem by the following technical programs:
A kind of indirect air cooling generating set multistage steam exhaust cascade utilization heating system, including the heat exchange of space-heating installation, water water
Device, jet type heat pump condenser, peak load calorifier, turbine low pressure cylinder, Steam Turbine Through IP Admission and cooling tower, space-heating installation are logical
The heat exchange input mouth of a river for crossing return pipe and water water- to-water heat exchanger is connected together, and the heat exchange output mouth of a river of water water- to-water heat exchanger passes through circulation
The input terminal of water pump and first order jet type heat pump condenser is connected together, the output end of first order jet type heat pump condenser
It is connected together with the input terminal of second level jet type heat pump condenser, the output end and point of second level jet type heat pump condenser
The input terminal of peak heater is connected together, and the output end of peak load calorifier is connected by the feed water inlet of water supplying pipe and space-heating installation
Lead to together；The hot water input port of water water- to-water heat exchanger is connected to by indirect cyclic process water supplying pipe with the output mouth of a river of turbine condenser
Together, the hot water output port of water water- to-water heat exchanger is connected together by indirect cyclic process return pipe with cooling tower, and cooling tower goes out
The mouth of a river is connected together by the input mouth of a river of cooling circulating water pump and turbine condenser；First order jet type heat pump condenser
Gland steam exhauster is sprayed by the first order to be connected to first order jet type heat pump, first order jet type heat pump passed through by injection steam ports by
Injection steam pipe is connected together with turbine condenser, and the jet type heat pump injection steam ports of first order jet type heat pump passes through injection
Formula heat pump injection steam pipe and the steam drain of Steam Turbine Through IP Admission are connected together, and second level jet type heat pump condenser passes through second
Grade injection gland steam exhauster is connected to second level jet type heat pump, and second level jet type heat pump is passed through by injection steam ports by injection steam pipe
It is connected together with turbine condenser, the jet type heat pump injection steam ports of second level jet type heat pump is drawn by jet type heat pump
The steam drain for penetrating steam pipe and Steam Turbine Through IP Admission is connected together；The input terminal of peak load calorifier and the steam discharge of Steam Turbine Through IP Admission
Mouth is connected together.
The exhaust steam pressure of first order jet type heat pump is lower than the exhaust steam pressure of second level jet type heat pump, to realize to adopting
The step of the return water of warm heat user heats.
The utility model has the beneficial effects that passing through the utilization of unit waste heat, unit heat capacity can be increased close to 20-
30%, and reduce the use of heat supply steam extraction, it reduces for thermal energy consumption and cost；Due to water water- to-water heat exchanger, jet type heat pump and
Its condenser belongs to simple and mechanical and heat exchange equipment, and operation expense and difficulty are smaller.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing:
A kind of indirect air cooling generating set multistage steam exhaust cascade utilization heating system, including the heat exchange of space-heating installation 1, water water
Device 3, jet type heat pump condenser, peak load calorifier 7, turbine low pressure cylinder 21, Steam Turbine Through IP Admission 2 and cooling tower 8, heating heat
User 1 inputs the mouth of a river by the heat exchange of return pipe 9 and water water- to-water heat exchanger 3 and is connected together, and the heat exchange of water water- to-water heat exchanger 3 exports water
Mouth is connected together by water circulating pump 4 and the input terminal of first order jet type heat pump condenser 5, and first order jet type heat pump is solidifying
The output end of vapour device 5 and the input terminal of second level jet type heat pump condenser 6 are connected together, second level jet type heat pump condensing
The output end of device 6 and the input terminal of peak load calorifier 7 are connected together, the output end of peak load calorifier 7 by water supplying pipe 10 with
The feed water inlet of space-heating installation 1 is connected together；The hot water input port of water water- to-water heat exchanger 3 passes through indirect cyclic process water supplying pipe 11 and vapour
The output mouth of a river of turbine condenser 14 is connected together, and the hot water output port of water water- to-water heat exchanger 3 passes through indirect cyclic process return pipe 12
It is connected together with cooling tower 8, the water outlet of cooling tower 8 passes through the input water of cooling circulating water pump 13 and turbine condenser 14
Mouth is connected together；First order jet type heat pump condenser 5 sprays gland steam exhauster 15 and first order jet type heat pump by the first order
16 connection, first order jet type heat pump 16 by injection steam ports by being connected to turbine condenser 14 one by injection steam pipe 17
It rises, the jet type heat pump injection steam ports of first order jet type heat pump 16 passes through jet type heat pump injection steam pipe 18 and presses in steam turbine
The steam drain of cylinder 2 is connected together, and second level jet type heat pump condenser 6 sprays gland steam exhauster 19 by the second level and the second level is sprayed
The connection of formula heat pump 20 is penetrated, second level jet type heat pump 20 is passed through by injection steam ports by injection steam pipe 17 and turbine condenser 14
It is connected together, the jet type heat pump injection steam ports of second level jet type heat pump 20 passes through jet type heat pump injection steam pipe 18 and vapour
The steam drain of turbine intermediate pressure cylinder 2 is connected together；The input terminal of peak load calorifier 7 is connected to the steam drain of Steam Turbine Through IP Admission 2
Together.
The exhaust steam pressure of first order jet type heat pump 16 is lower than the exhaust steam pressure of second level jet type heat pump 20, to realize
Step heating to the return water of space-heating installation 1.
After heat supply network recirculated water after the heat exchange of space-heating installation 1 enters power plant by outer net, water water- to-water heat exchanger 3 is initially entered, by
Indirect cooling circulating water is heated, and after heating, then is boosted by water circulating pump 4, first order injection is sequentially entered after boosting
The heating that two stages are carried out in formula heat pump condensing device 5 and second level jet type heat pump condenser 6, enters back into spike after heating and adds
It is finally heated in hot device 7.The heat medium that water water- to-water heat exchanger 3 is heated in first stage is indirect cooling circulating water, indirectly
After cooling circulating water absorbs exhaust steam residual heat in turbine condenser 14, into water water- to-water heat exchanger 3, entered back into after heat exchange indirectly cold
But tower 8 return to turbine condenser 14 further after cooling, complete circulation；Second stage is by two-stage jet type heat pump and its coagulates
Vapour device composition, two-stage jet type heat pump injection vapour are taken from 2 steam drain of Steam Turbine Through IP Admission, are derived from steam turbine low-pressure by injection vapour
The steam drain of cylinder, 16 exhaust steam pressure of first order jet type heat pump is lower than 20 exhaust steam pressure of second level jet type heat pump, to realize
Step heating.
Claims (2)
1. a kind of indirect air cooling generating set multistage steam exhaust cascade utilization heating system, including the heat exchange of space-heating installation (1), water water
Device (3), jet type heat pump condenser, peak load calorifier (7), turbine low pressure cylinder (21), Steam Turbine Through IP Admission (2) and cooling tower
(8), which is characterized in that space-heating installation (1) inputs the mouth of a river with the heat exchange of water water- to-water heat exchanger (3) by return pipe (9) and is connected to
Together, the heat exchange output mouth of a river of water water- to-water heat exchanger (3) passes through water circulating pump (4) and first order jet type heat pump condenser (5)
Input terminal is connected together, the output end and second level jet type heat pump condenser (6) of first order jet type heat pump condenser (5)
Input terminal be connected together, the input terminal of the output end of second level jet type heat pump condenser (6) and peak load calorifier (7) connects
Lead to together, the output end of peak load calorifier (7) is connected to the feed water inlet of space-heating installation (1) one by water supplying pipe (10)
It rises；The hot water input port of water water- to-water heat exchanger (3) passes through the output water of indirect cyclic process water supplying pipe (11) and turbine condenser (14)
Mouth is connected together, and the hot water output port of water water- to-water heat exchanger (3) is connected to by indirect cyclic process return pipe (12) with cooling tower (8)
Together, the water outlet of cooling tower (8) is connected to by cooling circulating water pump (13) with the input mouth of a river of turbine condenser (14)
Together；First order jet type heat pump condenser (5) passes through first order injection gland steam exhauster (15) and first order jet type heat pump (16)
Connection, first order jet type heat pump (16) by injection steam ports by being connected to by injection steam pipe (17) with turbine condenser (14)
Together, the jet type heat pump injection steam ports of first order jet type heat pump (16) passes through jet type heat pump injection steam pipe (18) and vapour
The steam drain of turbine intermediate pressure cylinder (2) is connected together, and second level jet type heat pump condenser (6) sprays gland steam exhauster by the second level
(19) it is connected to second level jet type heat pump (20), second level jet type heat pump (20) is passed through by injection steam ports by injection steam pipe
(17) it is connected together with turbine condenser (14), the jet type heat pump injection steam ports of second level jet type heat pump (20) passes through
Jet type heat pump injection steam pipe (18) and the steam drain of Steam Turbine Through IP Admission (2) are connected together；The input of peak load calorifier (7)
It holds and is connected together with the steam drain of Steam Turbine Through IP Admission (2).
2. a kind of indirect air cooling generating set multistage steam exhaust cascade utilization heating system according to claim 1, feature
It is, the exhaust steam pressure of first order jet type heat pump (16) is lower than the exhaust steam pressure of second level jet type heat pump (20), thus real
Now the step of the return water of space-heating installation (1) is heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821117054.6U CN208703999U (en) | 2018-07-16 | 2018-07-16 | Indirect air cooling generating set multistage steam exhaust cascade utilization heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821117054.6U CN208703999U (en) | 2018-07-16 | 2018-07-16 | Indirect air cooling generating set multistage steam exhaust cascade utilization heating system |
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| Publication Number | Publication Date |
|---|---|
| CN208703999U true CN208703999U (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821117054.6U Active CN208703999U (en) | 2018-07-16 | 2018-07-16 | Indirect air cooling generating set multistage steam exhaust cascade utilization heating system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387874A (en) * | 2022-08-15 | 2022-11-25 | 国能龙源电力技术工程有限责任公司 | Distributed energy heating system |
| CN115468183A (en) * | 2022-09-29 | 2022-12-13 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Circulating water waste heat utilization system of indirect air cooling unit and operation method |
| CN117006496A (en) * | 2023-08-08 | 2023-11-07 | 华能伊敏煤电有限责任公司 | An indirect air cooling system and method |
-
2018
- 2018-07-16 CN CN201821117054.6U patent/CN208703999U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387874A (en) * | 2022-08-15 | 2022-11-25 | 国能龙源电力技术工程有限责任公司 | Distributed energy heating system |
| CN115468183A (en) * | 2022-09-29 | 2022-12-13 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Circulating water waste heat utilization system of indirect air cooling unit and operation method |
| CN117006496A (en) * | 2023-08-08 | 2023-11-07 | 华能伊敏煤电有限责任公司 | An indirect air cooling system and method |
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