CN203978530U - The expanding unit vacuum system processed of Gas-steam Combined Cycle unit - Google Patents
The expanding unit vacuum system processed of Gas-steam Combined Cycle unit Download PDFInfo
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- CN203978530U CN203978530U CN201420175565.9U CN201420175565U CN203978530U CN 203978530 U CN203978530 U CN 203978530U CN 201420175565 U CN201420175565 U CN 201420175565U CN 203978530 U CN203978530 U CN 203978530U
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- 230000000740 bleeding effect Effects 0.000 claims abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- 238000010248 power generation Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Abstract
The utility model belongs to Combined Cycle Unit equipment technical field, relates in particular to a kind of expanding unit vacuum system processed of Gas-steam Combined Cycle unit.Comprise 1# machine vapour condenser and 2# machine vapour condenser, both bleeding, between interface, be connected with contact pipeline; Also comprise four vacuum pump groups, each the vacuum pump group all lateral by separately communicates with contact pipeline, article four, lateral intersects at a, b, c, tetra-nodes of d with contact pipeline successively, on the contact pipeline on the contact pipeline on the contact pipeline on every lateral, between a node and 1# machine vapour condenser, between d node and 2# machine vapour condenser, between b node and c node, is equipped with electric valve; Also comprise controller, each electric valve is all electrically connected to described controller.Vacuum system reasonable in design of the present utility model, controller and a plurality of electric valve are controlled the scheduling running of four vacuum pump groups, and economical operation is energy-conservation.
Description
Technical field
The utility model belongs to Combined Cycle Unit equipment technical field, relates in particular to a kind of expanding unit vacuum system processed of Gas-steam Combined Cycle unit.
Background technique
In modern society, in order to improve the city appearance environment quality in city, down town, the Gas-steam Combined Cycle power generation and heat supply unit that traditional coal fired power generation heat supply unit is had the advantages such as efficiency of energy utilization is high, disposal of pollutants is low just gradually replaces.Common engineering construction scale is two covers " two drag " Gas-steam Combined Cycle power generation and heat supply unit, two cover unit mirror-image arrangement, and every cover unit comprises 2 gas turbine generator groups, 2 exhaust heat boilers and 1 vapor wheel generator set.When unit supplies thermal condition in the winter time, mainly adopt steam turbine low pressure (LP) cylinder off-the-line, high intermediate pressure cylinder back pressure operation, the main vapour of its steam discharge and low pressure is all for heating heat exchangers for district heating; At preliminary heating period with when latter stage, heat load was lower, unit adopts to be taken out solidifying mode and moves; During non-confession thermal condition, high intermediate pressure cylinder and low pressure (LP) cylinder are linked to be an axle by SSS clutch, unit pure condensate operation.Evacuation system for steam condenser is one of important system of unit, extracts to reach the air in Steam Side of Condenser space and subsidiary pipeline and equipment out steam turbine start requirement at the unit starting initial stage by vacuum pump; Unit, at the normal non-condensing gas gathering vapour condenser air zone of removing in service, maintains turbine back pressure.Because steam turbine possesses pure condensate, takes out the multiple methods of operation such as solidifying, back pressure, and Heating Season mainly moves in back pressure mode, so Gas-steam Combined Cycle power generation and heat supply unit energy-saving potential aspect the optimal design of vacuum system and economical operation is huge.
Model utility content
The utility model provides the expanding unit vacuum system processed of the energy-conservation Gas-steam Combined Cycle unit of a kind of reasonable in design, economical operation for solving the technical problem existing in known technology.
The utility model for the technological scheme that solves the technical problem that exists in known technology and take is: the expanding unit vacuum system processed of Gas-steam Combined Cycle unit comprises 1# machine vapour condenser and 2# machine vapour condenser, both bleeding, is connected with contact pipeline between interface; Also comprise four vacuum pump groups, each the vacuum pump group all lateral by separately communicates with contact pipeline, article four, lateral intersects at a, b, c, tetra-nodes of d with contact pipeline successively, on the contact pipeline on the contact pipeline on the contact pipeline on every lateral, between a node and 1# machine vapour condenser, between d node and 2# machine vapour condenser, between b node and c node, is equipped with electric valve; Also comprise controller, each electric valve is all electrically connected to described controller.
Advantage of the present utility model and good effect are: the utility model provides a kind of vacuum system processed of the expanding unit for Gas-steam Combined Cycle unit of reasonable in design, four vacuum pump groups are articulated on the contact pipeline between 1# machine vapour condenser and 2# machine vapour condenser simultaneously, by controller and a plurality of electric valve, control the management and running of each vacuum pump group, realized the Auto-matching with whole unit current working, economical operation is energy-conservation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples and be described in detail as follows:
Refer to Fig. 1, the utility model comprises 1# machine vapour condenser and 2# machine vapour condenser, both bleeding, is connected with contact pipeline between interface.
Also comprise four vacuum pump groups, each the vacuum pump group all lateral by separately communicates with contact pipeline.Shown in accompanying drawing 1, four vacuum pump groups are respectively 1A vacuum pump group, 1B vacuum pump group, 2A vacuum pump group and 2B vacuum pump group.Article four, lateral intersects at a, b, c, tetra-nodes of d with contact pipeline successively.
On contact pipeline on contact pipeline on contact pipeline on every lateral, between a node and 1# machine vapour condenser, between d node and 2# machine vapour condenser, between b node and c node, be equipped with electric valve.Shown in accompanying drawing 1, each electric valve is denoted as 1, 1A, 1B, 2, 2A, 2B, 3, wherein electric valve 3 is positioned at contact pipeline middle part, electric valve 1 and electric valve 2 are positioned at contact pipe ends and press close to 1# machine vapour condenser and 2# machine vapour condenser place, electric valve 1A is on the lateral between first vacuum pump group and contact pipeline, electric valve 1B is on the lateral between second vacuum pump group and contact pipeline, electric valve 2A is on the lateral between the 3rd vacuum pump group and contact pipeline, electric valve 2B is on the lateral between the 4th vacuum pump group and contact pipeline.
Also comprise controller, each electric valve is all electrically connected to this controller.
Above-mentioned Gas-steam Combined Cycle unit is heat supply, peak regulation unit.The winter heating phase, unit band base heating load moves continuously, electricity determining by heat; Season in spring and autumn, unit adopted the two-platoon system pure condensate peak regulation method operation that getting up early stops evening; During summer large load, unit whole day pure condensate peaking operation.During the various methods of operation of unit, this vacuum system method of operation is as follows:
1) method of operation one
At the first set unit starting initial stage, electric valve 1,1A, 1B, 3,2A, 1B open, and electric valve 2 is closed.1A, 1B, 2A, tetra-vacuum pump groups of 1B are moved simultaneously, and vacuum system adopts piping-main scheme mode to move.When first set unit degree of vacuum reaches requirement, electric valve 1,1A, 1B maintain open mode, and electric valve 2,3,2A, 2B close, 1A and the operation of 1B vacuum pump group, and vacuum system changes unit mode processed into and moves.This kind of mode, for two-platoon system single unit operating conditions, when single cover unit starting, can be accelerated vacuum pumping rate, greatly shortens starting time.
2) method of operation two
During two cover unit back pressure operating mode operations, electric valve 1,2,3 is opened, and only has one to open in electric valve 1A, 1B, 2A, 2B, and correspondence is opened the vacuum pump group operation of electric valve, and vacuum system adopts piping-main scheme mode to move.Under unit back pressure operating mode, Steam Turbine Through IP Admission exhaust all enters heat supply network heat supply, only has a small amount of shaft seal use gas to enter low pressure (LP) cylinder, and every steam turbine only has the non-condensing gas of minute quantity, and two cover units share a vacuum pump group and can meet the demands.This kind of mode, for Heating Season unit back pressure operation operating mode, can lower the vacuum pump group power consumption of half, and energy-saving effect is obvious.
3) method of operation three
Two cover unit pure condensates or take out solidifying operating mode operation, electric valve 1,2 is opened, and electric valve 3 is closed, and two unit vacuum systems adopt unit modes processed to move, and the vacuum pump group of every cover unit has 1 operation, 1 standby.This kind of mode is for pure condensate in summer operating conditions and low heat loads phase from beginning to end heat supply phase.
Evacuation system for steam condenser adopts expanding unit system, realizes the economic load dispatching operation of two cover Gas-steam Combined Cycle power generation and heat supply units vacuum pump group under the various methods of operation.Along with extensive construction and the energy-saving and cost-reducing implementation of Gas-steam Combined Cycle power generation and heat supply unit in recent years, this expanding unit vacuum system processed is wide at Gas-steam Combined Cycle power generation and heat supply unit field popularizing application prospect.
The successful Application of evacuation system for steam condenser expanding unit system, realize the economic load dispatching operation of unit vacuum pump under the various methods of operation, reach energy-saving and cost-reducing effect, strengthened the Security that system equipment moves, flexible, to improving operation and management level, be significant.In Heating Season back pressure operation operating mode, only by 2880 hours runs, calculate, by 0.65 yuan/KWh of plant gas rate for incorporation into the power network calculating, through initial estimate, only at Heating Season, can save approximately 210,000 yuan of the electricity charge (0.65 yuan/KWh*110KWh*2880 hour=205920 yuan).
Claims (1)
1. the expanding unit of a Gas-steam Combined Cycle unit vacuum system processed, is characterized in that: comprise 1# machine vapour condenser and 2# machine vapour condenser, both bleeding, be connected with contact pipeline between interface; Also comprise four vacuum pump groups, each the vacuum pump group all lateral by separately communicates with contact pipeline, article four, lateral intersects at a, b, c, tetra-nodes of d with contact pipeline successively, on the contact pipeline on the contact pipeline on the contact pipeline on every lateral, between a node and 1# machine vapour condenser, between d node and 2# machine vapour condenser, between b node and c node, is equipped with electric valve; Also comprise controller, each electric valve is all electrically connected to described controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175565.9U CN203978530U (en) | 2014-04-11 | 2014-04-11 | The expanding unit vacuum system processed of Gas-steam Combined Cycle unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175565.9U CN203978530U (en) | 2014-04-11 | 2014-04-11 | The expanding unit vacuum system processed of Gas-steam Combined Cycle unit |
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| Publication Number | Publication Date |
|---|---|
| CN203978530U true CN203978530U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420175565.9U Expired - Lifetime CN203978530U (en) | 2014-04-11 | 2014-04-11 | The expanding unit vacuum system processed of Gas-steam Combined Cycle unit |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823345A (en) * | 2016-05-10 | 2016-08-03 | 西安西热节能技术有限公司 | Circulating cooling water neighbor connection system applied to cold end systems of indirect air cooling units |
-
2014
- 2014-04-11 CN CN201420175565.9U patent/CN203978530U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823345A (en) * | 2016-05-10 | 2016-08-03 | 西安西热节能技术有限公司 | Circulating cooling water neighbor connection system applied to cold end systems of indirect air cooling units |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |