CN204345765U - Air-cooled Unit high back pressure circulating water heating double parallel operational system - Google Patents
Air-cooled Unit high back pressure circulating water heating double parallel operational system Download PDFInfo
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- CN204345765U CN204345765U CN201420772285.6U CN201420772285U CN204345765U CN 204345765 U CN204345765 U CN 204345765U CN 201420772285 U CN201420772285 U CN 201420772285U CN 204345765 U CN204345765 U CN 204345765U
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Abstract
The utility model discloses a kind of Air-cooled Unit high back pressure circulating water heating double parallel operational system, comprise low pressure (LP) cylinder Air-cooled Unit circulating water heating system I and low pressure (LP) cylinder Air-cooled Unit circulating water heating system II, system I includes with system II: exhaust equipment of LP casing outlet is communicated with Air-Cooling Island, Air-Cooling Island is communicated with condenser, exhaust equipment of LP casing outlet is communicated with condenser, condenser water inlet pipe is communicated with heat supply network return pipe, and condenser outlet pipe is communicated with heat supply network return pipe by heat exchangers for district heating; The heat supply network return pipe A of system I is communicated with the heat supply network return pipe B of system II by valve A, and the heat supply network feed pipe A of system I is communicated with the heat supply network feed pipe B of system II by valve B.The utility model is reasonable in design, and flexibility is high, substantially increases utilization rate of waste heat, achieves the flexibility of high back pressure heat supply running and supplies thermal safety.
Description
Technical field
The utility model relates to heat supply process field, is specifically related to a kind of Air-cooled Unit high back pressure circulating water heating double parallel operational system.
Background technology
Air-cooled Unit high back pressure circulating water heating utilizes the original design high back pressure of Air-cooled Unit to carry out heat supply, the design of present routine is that two units run by a back of the body mode of taking out, namely transform a unit heat supply phase operation high back pressure and carry out heat supply, run original back pressure as the occasion requires and carry out drawing gas concurrent heating.Two Air-cooled Unit are run by a back of the body mode of taking out, and can not realize UTILIZATION OF VESIDUAL HEAT IN and maximize, can only reclaim a unit cold source energy, and when back pressure operation unit breaks down, an other unit heat capacity is not enough, affects heat supply safety.
Summary of the invention
For making up the deficiencies in the prior art, the utility model provides a kind of flexibility high, reasonable in design, the Air-cooled Unit high back pressure circulating water heating double parallel operational system of heat supply safety.
The utility model is achieved by the following technical solution:
A kind of Air-cooled Unit high back pressure circulating water heating double parallel operational system, comprise low pressure (LP) cylinder Air-cooled Unit circulating water heating system I and low pressure (LP) cylinder Air-cooled Unit circulating water heating system II, its special character is: system I includes with system II: exhaust equipment of LP casing outlet is communicated with Air-Cooling Island, Air-Cooling Island is communicated with condenser, exhaust equipment of LP casing outlet is communicated with condenser, condenser water inlet pipe is communicated with heat supply network return pipe, and condenser outlet pipe is communicated with heat supply network return pipe by heat exchangers for district heating; The heat supply network return pipe A of system I is communicated with the heat supply network return pipe B of system II by valve A, and the heat supply network feed pipe A of system I is communicated with the heat supply network feed pipe B of system II by valve B.
Air-cooled Unit high back pressure circulating water heating double parallel operational system of the present utility model, is provided with valve C between the condenser water inlet pipe of system I and heat supply network return pipe A, is provided with valve D between condenser outlet pipe and heat supply network feed pipe A.
The beneficial effects of the utility model are: the utility model carries out the transformation of high back pressure recirculated water to two Air-cooled Unit simultaneously, reasonable in design, flexibility is high, substantially increase utilization rate of waste heat, and solve a unit and to break down the problem of remaining unit heat capacity deficiency, achieve high back pressure heat supply running flexibility and for thermal safety.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing 1 is structural representation of the present utility model.
In figure, 1 valve D, 2 valve C, 3 exhaust steam valve A, 4 exhaust steam valve B, 5 condensate valve A, 6 valve B, 7 valve A, 8 exhaust steam valve C, 9 exhaust steam valve D, 10 condensate valve B, 11 low pressure (LP) cylinder Air-cooled Unit circulating water heating systems I, 12 low pressure (LP) cylinder Air-cooled Unit circulating water heating system II, 13 low pressure (LP) cylinders, 14 condensers, 15 Air-Cooling Islands, 16 heat exchangers for district heatings, 17 heat supply network return pipe A, 18 heat supply network feed pipe A, 19 heat supply network return pipe B, 20 heat supply network feed pipe B.
Detailed description of the invention
Accompanying drawing is a kind of detailed description of the invention of the present utility model.This embodiment comprises low pressure (LP) cylinder Air-cooled Unit circulating water heating system I 11 and low pressure (LP) cylinder Air-cooled Unit circulating water heating system II 12, system I 11 includes with system II 12: the outlet of low pressure (LP) cylinder 13 gland steam exhauster is communicated with Air-Cooling Island 15, Air-Cooling Island 15 is communicated with condenser 14, the outlet of low pressure (LP) cylinder 13 gland steam exhauster is communicated with condenser 14, condenser 14 water inlet pipe is communicated with heat supply network return pipe, and condenser 14 outlet pipe is communicated with heat supply network return pipe by heat exchangers for district heating 16; The heat supply network return pipe A17 of system I 11 is communicated with the heat supply network return pipe B19 of system II 12 by valve A7, and the heat supply network feed pipe A18 of system I 11 is communicated with the heat supply network feed pipe B20 of system II 12 by valve B8; Be provided with valve C2 between condenser 14 water inlet pipe of system I 11 and heat supply network return pipe A17, between condenser 14 outlet pipe and heat supply network feed pipe A18, be provided with valve D1.
This embodiment carries out the transformation of high back pressure circulating water heating to two Air-cooled Unit in factory simultaneously, when just latter stage, heating parameter was lower in heat supply, open valve D 1 respectively, valve C 2, exhaust steam valve A 3, condensate valve A 5, valve B 6, valve A 7, exhaust steam valve C 8, condensate valve B 10 closes exhaust steam valve B 4, exhaust steam valve D 9 realizes Air-cooled Unit high back pressure circulating water heating double parallel and runs, system I 11 heat supply network return pipe A17 enters the heat supply condenser 14 of system I 11 and system II 12 respectively through valve C2 and valve A7, unit operation back pressure is 33kPa, condenser 14 leaving water temperature reaches 68 DEG C, respectively through the machine draw gas heating leaving water temperature can reach about 80 DEG C, heat supply just heating parameter requirement in latter stage can be met, larger has reclaimed unit cold source energy.
When heating parameter requires higher cold snap, close exhaust steam valve B 4, valve B 6, valve A 7, exhaust steam valve C 8, condensate valve B 10, Open valve D 1, valve C 2, exhaust steam valve A 3, condensate valve A 5, or valve-off D1, valve C 2, exhaust steam valve A 3, condensate valve A 5, exhaust steam valve D 9, Open valve B 6, valve A 7, exhaust steam valve C 8, condensate valve B 10, realize unit to run by a back of the body mode of taking out, heat supply network backwater is after back pressure unit heating, and then heat through extraction steam unit, heat supply network leaving water temperature can reach about 110 DEG C, the requirement of heat supply network cold snap can be met.
When system II 12 low pressure (LP) cylinder Air-cooled Unit breaks down maintenance down, exhaust steam valve B 4 can be closed, valve B 6, valve A 7, exhaust steam valve C 8, condensate valve B 10, Open valve D 1, valve C 2, exhaust steam valve A 3, condensate valve A 5, when system I 11 low pressure (LP) cylinder Air-cooled Unit unit breaks down maintenance down, can valve-off D 1, valve C 2, exhaust steam valve A 3, condensate valve A 5, exhaust steam valve D 9, Open valve B 6, valve A 7, exhaust steam valve C 8, condensate valve B 10, realize a unit maximum heating load to run, meet the basic demand of heat supply network heat supply.
Claims (2)
1. an Air-cooled Unit high back pressure circulating water heating double parallel operational system, comprise low pressure (LP) cylinder Air-cooled Unit circulating water heating system I (11) and low pressure (LP) cylinder Air-cooled Unit circulating water heating system II (12), it is characterized in that: system I (11) includes with system II (12): the outlet of low pressure (LP) cylinder (13) gland steam exhauster is communicated with Air-Cooling Island (15), Air-Cooling Island (15) is communicated with condenser (14), the outlet of low pressure (LP) cylinder (13) gland steam exhauster is communicated with condenser (14), condenser (14) water inlet pipe is communicated with heat supply network return pipe, condenser (14) outlet pipe is communicated with heat supply network return pipe by heat exchangers for district heating (16), the heat supply network return pipe A(17 of system I (11)) by valve A(7) with the heat supply network return pipe B(19 of system II (12)) be communicated with, the heat supply network feed pipe A(18 of system I (11)) by valve B(8) with the heat supply network feed pipe B(20 of system II (12)) be communicated with.
2. Air-cooled Unit high back pressure circulating water heating double parallel operational system according to claim 1, it is characterized in that: condenser (14) water inlet pipe of system I (11) and heat supply network return pipe A(17) between be provided with valve C(2), condenser (14) outlet pipe and heat supply network feed pipe A(18) between be provided with valve D(1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420772285.6U CN204345765U (en) | 2014-12-10 | 2014-12-10 | Air-cooled Unit high back pressure circulating water heating double parallel operational system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420772285.6U CN204345765U (en) | 2014-12-10 | 2014-12-10 | Air-cooled Unit high back pressure circulating water heating double parallel operational system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204345765U true CN204345765U (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420772285.6U Expired - Fee Related CN204345765U (en) | 2014-12-10 | 2014-12-10 | Air-cooled Unit high back pressure circulating water heating double parallel operational system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204345765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798810A (en) * | 2018-02-26 | 2018-11-13 | 西安热工研究院有限公司 | Double-work medium suitable for three-exhauster type Steam Turbine cools down heating system and method |
| CN113882918A (en) * | 2021-09-09 | 2022-01-04 | 联合瑞升（北京）科技有限公司 | Exhaust steam waste heat recovery and heat supply system of direct air cooling unit of thermal power plant |
-
2014
- 2014-12-10 CN CN201420772285.6U patent/CN204345765U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798810A (en) * | 2018-02-26 | 2018-11-13 | 西安热工研究院有限公司 | Double-work medium suitable for three-exhauster type Steam Turbine cools down heating system and method |
| CN113882918A (en) * | 2021-09-09 | 2022-01-04 | 联合瑞升（北京）科技有限公司 | Exhaust steam waste heat recovery and heat supply system of direct air cooling unit of thermal power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20191210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |