CN204345766U - The two back pressure circulating water heating system of Air-cooled Unit - Google Patents
The two back pressure circulating water heating system of Air-cooled Unit Download PDFInfo
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- CN204345766U CN204345766U CN201420772363.2U CN201420772363U CN204345766U CN 204345766 U CN204345766 U CN 204345766U CN 201420772363 U CN201420772363 U CN 201420772363U CN 204345766 U CN204345766 U CN 204345766U
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Abstract
The utility model discloses the two back pressure circulating water heating system of a kind of Air-cooled Unit, comprise low pressure (LP) cylinder A and low pressure (LP) cylinder B, the outlet of low pressure (LP) cylinder A gland steam exhauster is communicated with condenser entrance by exhaust steam valve A, condenser outlet is communicated with condensate system A by condensate valve, the outlet of low pressure (LP) cylinder B gland steam exhauster is communicated with Air-Cooling Island B by exhaust steam valve B, condensate system B is communicated with the outlet pipe of Air-Cooling Island B, and condensate system A, condensate system B export with condensate water and be connected.The utility model runs by the two back pressure circulating water heating system of Air-cooled Unit, realize 600MW Air-cooled Unit and can reclaim the loss of low pressure (LP) cylinder part steam discharge, do not affect again mechanical efficiency and the gross coal consumption rate of other a part of steam discharge, reasonable in design, economize energy, improves unit efficiency.
Description
Technical field
The utility model relates to heat supply process field, is specifically related to the two back pressure circulating water heating system of a kind of Air-cooled Unit.
Background technology
Air-cooled Unit high back pressure circulating water heating utilizes the original design high back pressure of unit to carry out high back pressure operation, reclaim the loss of low pressure (LP) cylinder steam discharge, 600MW Air-cooled Unit is two low pressure (LP) cylinder designs, when carrying out high back pressure circulating water heating and running, because displacement is large, quantity of circulating water and area of heat-supply service less, cause can only reclaim a part of steam discharge loss.When high back pressure circulating water heating runs, unit back pressuce runs to 35kPa by the 13kPa designed, because low pressure (LP) cylinder steam discharge can not reclaim completely, the steam discharge that unit does not reclaim runs 35kPa high back pressure equally and enters Air-Cooling Island, cause that mechanical efficiency is low, gross coal consumption rate increases, energy waste, reduces the benefit of high back pressure circulating water heating.
Summary of the invention
For making up the deficiencies in the prior art, the utility model provides a kind of economize energy, the Air-cooled Unit that reasonable in design, workmanship efficiency is high two back pressure circulating water heating system.
The utility model is achieved by the following technical solution:
The two back pressure circulating water heating system of a kind of Air-cooled Unit, comprise thermal power plant unit, thermal power plant unit comprises low pressure (LP) cylinder A and low pressure (LP) cylinder B, its special character is: the outlet of low pressure (LP) cylinder A gland steam exhauster is communicated with condenser entrance by exhaust steam valve A, condenser outlet is communicated with condensate system A by condensate valve, the outlet of low pressure (LP) cylinder B gland steam exhauster is communicated with Air-Cooling Island B by exhaust steam valve B, and condensate system B is communicated with the outlet pipe of Air-Cooling Island B, and condensate system A, condensate system B export with condensate water and be connected.
The two back pressure circulating water heating system of Air-cooled Unit of the present utility model, the outlet of low pressure (LP) cylinder A gland steam exhauster is communicated with Air-Cooling Island A by exhaust steam valve C, and condensate system A is communicated with the outlet pipe of Air-Cooling Island A.
The two back pressure circulating water heating system of Air-cooled Unit of the present utility model, heat supply network return pipe is communicated with the water inlet pipe of condenser by valve A, and heat supply network feed pipe and heat supply initial station are connected and pass through the outlet pipe that valve B is communicated with condenser.
The two back pressure circulating water heating system of Air-cooled Unit of the present utility model, be provided with valve C between heat supply network return pipe and heat supply initial station, this valve C is between condenser water inlet pipe and outlet pipe.
The beneficial effects of the utility model are: the utility model runs by the two back pressure circulating water heating system of Air-cooled Unit, realize 600MW Air-cooled Unit and can reclaim the loss of low pressure (LP) cylinder part steam discharge, do not affect again mechanical efficiency and the gross coal consumption rate of other a part of steam discharge, reasonable in design, economize energy, improves unit efficiency.
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 exhaust steam valve C, 2 exhaust steam valve A, 3 condensate valves, 4 valve A, 5 valve B, 6 valve C, 7 exhaust steam valve B, 8 low pressure (LP) cylinder A, 9 low pressure (LP) cylinder B, 10 condensers, 11 Air-Cooling Island A, 12 condensate system A, 13 heat supply initial stations, 14 Air-Cooling Island B, 15 condensate system B, 16 heat supply network return pipes, 17 heat supply network feed pipes, 18 condensate water outlets.
Detailed description of the invention
Accompanying drawing is a kind of detailed description of the invention of the present utility model.This embodiment comprises thermal power plant unit, thermal power plant unit comprises low pressure (LP) cylinder A8 and low pressure (LP) cylinder B9, the outlet of low pressure (LP) cylinder A8 gland steam exhauster is communicated with condenser 10 entrance by exhaust steam valve A2, condenser 10 exports and is communicated with condensate system A12 by condensate valve 3, the outlet of low pressure (LP) cylinder A8 gland steam exhauster is communicated with Air-Cooling Island A11 by exhaust steam valve C1, condensate system A12 is communicated with the outlet pipe of Air-Cooling Island A11, the outlet of low pressure (LP) cylinder B9 gland steam exhauster is communicated with Air-Cooling Island B14 by exhaust steam valve B7, condensate system B15 is communicated with the outlet pipe of Air-Cooling Island B14, condensate system A12, condensate system B15 and condensate water export 18 and are connected, heat supply network return pipe 16 is communicated with the water inlet pipe of condenser 10 by valve A4, heat supply network feed pipe 17 and heat supply initial station 13 are connected and pass through the outlet pipe that valve B5 is communicated with condenser 10, valve C6 is provided with between heat supply network return pipe 16 and heat supply initial station 13, this valve C6 is between condenser 10 water inlet pipe and outlet pipe.
During heat supply running, it is 33kPa that low pressure (LP) cylinder A8 runs back pressure, it is 13kPa that low pressure (LP) cylinder B9 runs back pressure, exhaust steam valve 1 and valve C6 is closed during heat supply running, open exhaust steam valve A2, B7, condensate valve 3, valve 4,5, low pressure (LP) cylinder A8 steam discharge enters heat supply condenser 10, and heat supply network backwater enters condenser 10, heat supply network backwater is once heated, hot net water after heating enters heat supply initial station, and 13 carry out post bake by drawing gas, and the hot water after heating enters heat supply network, low pressure (LP) cylinder B9 steam discharge enters former Air-Cooling Island B14 and cools, and ensures that the loss of low pressure (LP) cylinder steam discharge is reclaimed completely.
Claims (4)
1. the two back pressure circulating water heating system of Air-cooled Unit, comprise thermal power plant unit, thermal power plant unit comprises low pressure (LP) cylinder A(8) and low pressure (LP) cylinder B(9), it is characterized in that: low pressure (LP) cylinder A(8) gland steam exhauster outlet by exhaust steam valve A(2) be communicated with condenser (10) entrance, condenser (10) outlet is communicated with condensate system A(12 by condensate valve (3)), low pressure (LP) cylinder B(9) gland steam exhauster outlet by exhaust steam valve B(7) be communicated with Air-Cooling Island B(14), condensate system B(15) be communicated with Air-Cooling Island B(14) outlet pipe, condensate system A(12), condensate system B(15) export (18) with condensate water and be connected.
2. the two back pressure circulating water heating system of Air-cooled Unit according to claim 1, it is characterized in that: low pressure (LP) cylinder A(8) gland steam exhauster outlet by exhaust steam valve C(1) with Air-Cooling Island A(11) be communicated with, condensate system A(12) and with Air-Cooling Island A(11) outlet pipe be communicated with.
3. the two back pressure circulating water heating system of Air-cooled Unit according to claim 1 and 2, it is characterized in that: heat supply network return pipe (16) is by valve A(4) be communicated with the water inlet pipe of condenser (10), heat supply network feed pipe (17) and heat supply initial station (13) are connected and pass through valve B(5) be communicated with the outlet pipe of condenser (10).
4. the two back pressure circulating water heating system of Air-cooled Unit according to claim 1 and 2, it is characterized in that: between heat supply network return pipe (16) and heat supply initial station (13), be provided with valve C(6), this valve C(6) be positioned at condenser (10) between water inlet pipe and outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420772363.2U CN204345766U (en) | 2014-12-10 | 2014-12-10 | The two back pressure circulating water heating system of Air-cooled Unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420772363.2U CN204345766U (en) | 2014-12-10 | 2014-12-10 | The two back pressure circulating water heating system of Air-cooled Unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204345766U true CN204345766U (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420772363.2U Expired - Fee Related CN204345766U (en) | 2014-12-10 | 2014-12-10 | The two back pressure circulating water heating system of Air-cooled Unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204345766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482579A (en) * | 2014-12-10 | 2015-04-01 | 山东泓奥电力科技有限公司 | Air cooling unit dual pressure circulating water heating system |
-
2014
- 2014-12-10 CN CN201420772363.2U patent/CN204345766U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482579A (en) * | 2014-12-10 | 2015-04-01 | 山东泓奥电力科技有限公司 | Air cooling unit dual pressure circulating water heating system |
| CN104482579B (en) * | 2014-12-10 | 2017-06-16 | 山东泓奥电力科技有限公司 | Air-cooled Unit double-backpressure circulating water heating |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20201210 |