CN108662647A - Cogeneration units bypass Heating Adjustment running gear and operation method - Google Patents
Cogeneration units bypass Heating Adjustment running gear and operation method Download PDFInfo
- Publication number
- CN108662647A CN108662647A CN201810472896.1A CN201810472896A CN108662647A CN 108662647 A CN108662647 A CN 108662647A CN 201810472896 A CN201810472896 A CN 201810472896A CN 108662647 A CN108662647 A CN 108662647A
- Authority
- CN
- China
- Prior art keywords
- valve
- cylinder
- regulating valve
- entrance
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000001105 regulatory effect Effects 0.000 claims abstract description 76
- 238000000605 extraction Methods 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 7
- 238000003303 reheating Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 230000033228 biological regulation Effects 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract 1
- 238000010248 power generation Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 230000010512 thermal transition Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D1/00—Steam central heating systems
- F24D1/02—Steam central heating systems operating with live steam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D1/00—Steam central heating systems
- F24D1/08—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1003—Arrangement or mounting of control or safety devices for steam heating systems
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Turbines (AREA)
Abstract
The present invention relates to a kind of cogeneration units bypass Heating Adjustment running gear and operation methods, include a holonomic system of the high, medium and low cylinder pressure of steam turbine, high pressure turbine by regulating valve, low voltage bypass regulating valve, low voltage bypass shut-off valve and other various regulating valve compositions.The present invention is adjusted by automatic or manual, is reached the mutual transition process of internal system electrically and thermally, is achieved the purpose that depth peak regulation.The beneficial effects of the invention are as follows：The flexibility that electrically and thermally load changes each other is improved, the ability of depth peak regulation has been reached, in the case where unit cold source energy is constant, by adjusting that can reach minimum electric load to rated capacity 17% hereinafter, flexible and changeable, peak regulation range is big, economic and reliable.
Description
Technical field：
The invention belongs to the cogeneration units heating energy-saving technical fields of electric system, more particularly to cogeneration units
Bypass Heating Adjustment running gear and operation method.
Background technology：
With the development of electric power, China's installed capacity is increasing, and the power generation peak-valley difference of grid requirements is also increasing, fire
Power power plant cogeneration units in winter heat supply when, with the increase of energy saving dynamics, heat consumption is got over after thermal power plant unit reducing energy consumption
Come lower, but the peak modulation capacity of unit is lower and lower, and the supplying thermal condition of unit operation and the electric load of grid requirements form lance
Shield.It is mainly manifested in following two problems：
For a for the most effective high back pressure circulating water heating technology of cogeneration of heat and power, heat consumption is very low, but supplies to hanker necessary
Electricity determining by heat, i.e.,：The how much corresponding electric load of thermic load is exactly how many, can not be adjusted.Limit peak regulation work(of the power grid to unit
Energy.With the popularization of this technology, such unit is more and more, and the peak regulation means of power grid are further restricted, if electric
Load effectively cannot be controlled and be adjusted, and security risk is brought to the safe operation of power grid and unit.
Although the extraction steam unit of b Winter heat supplies may be implemented limited peak regulation, but when the lower electric load of grid requirements,
Many unit pump gas ablities decline, or even are unable to extraction for heat supply completely, affect the heating of winter heat user, also limit power grid
Peak regulating function.With the continuous development of people's livelihood engineering, this restriction is increasing.In this case, the operation side of unit
The serious safety for affecting power grid of formula, when power grid does not need electricity, unit is still to largely send out to meet heating demand
Electricity.For the safety of power grid and unit, power grid has to abandon a large amount of wind-force
The clean energy resource of power generation and solar power generation is formed big to meet the operational safety requirement of thermal power generation unit
Amount burns the difficult situation that coal power generation abandons clean energy resource again, causes the energy waste and environmental pollution of entire society.
Depth peak regulation how is solved thus and can meet the contradiction of heating demand again, is become electric system and is badly in need of the skill solved
Art problem.
Invention content：
The present invention provides a kind of thermoelectricity to make up the deficiencies in the prior art and technical barrier described in background technology
Coproduction unit bypasses Heating Adjustment running gear and operation method, is realizing that unit net coal consumption rate is constant and is ensureing unit safety
On the basis of, electric load can be greatly lowered, improve thermic load, can also improve electric load, reduce thermic load, increase unit depth
The flexibility of peak regulation.
The present invention is achieved through the following technical solutions：A kind of cogeneration units bypass Heating Adjustment operation dress is provided
It sets and operation method, the running gear, including low voltage bypass shut-off valve 10, the mesolow cylinder connection extraction check valve newly increased
12 are connected to shut-off valve 13 with mesolow cylinder, connect each other between them, and with low voltage bypass regulating valve 7, the high pressure in original system
Bypass valve 2, boiler 1, high pressure cylinder 5, intermediate pressure cylinder 6, low pressure (LP) cylinder 15 and condenser 17 connect, and composition one is special to be had newly
The system of function；It is characterized in that the safe operation of equipment can be protected in equipment operation, and it can realize target to be achieved.Pass through
Following connection schemes are achieved：The main-steam outlet of the boiler 1 is separately connected high pressure turbine by regulating valve 2 and high pressure cylinder is adjusted
The outlet of the entrance of valve 3, the high pressure turbine by regulating valve 2 connects boiler cold section of entrance of 1 reheating, the high pressure cylinder regulating valve 3
The entrance of outlet connection high pressure cylinder 5；18 entrance of outlet connection high pressure cylinder steam discharge non-return valve of the high pressure cylinder 5；The boiler 1
Reheating hot arc steam (vapor) outlet is separately connected the entrance of intermediate pressure cylinder regulating valve 4 and low voltage bypass regulating valve 7, medium pressure cylinder regulating valve
4 outlet connects 6 entrance of intermediate pressure cylinder, and the outlet of the low voltage bypass regulating valve 7 is separately connected heat supply shut-off valve 8, low voltage bypass
The entrance of shut-off valve 10 is connected to the outlet of extraction check valve 12 with mesolow cylinder；The outlet mesolow cylinder of medium pressure cylinder 6
Connection 13 entrance of shut-off valve is connected to the entrance of regulating valve 14 with mesolow cylinder；The outlet of the low voltage bypass shut-off valve 10 connects
17 entrance of condenser；Mesolow cylinder connection shut-off valve 13 outlet is connected to mesolow cylinder connection 12 entrance of extraction check valve,
8 entrance of outlet connection heat supply shut-off valve of the mesolow cylinder connection extraction check valve 12；The outlet of the heat supply shut-off valve 8 connects
Connect external heat supply pipeline；The entrance of the outlet connection low pressure (LP) cylinder 15 of the mesolow cylinder connection regulating valve 14.
Further, the outlet of the mesolow cylinder connection extraction check valve 12 is connected to low voltage bypass shut-off valve 10, supplies
The outlet of Thermal shutdown valve 8 entrance and low voltage bypass regulating valve 7.
Further, the mesolow cylinder connection shut-off valve 13 is connected to mesolow cylinder connection regulating valve 14 and intermediate pressure cylinder 6
Outlet.
Further, increase an attemperator 16 between low voltage bypass shut-off valve (10) and condenser 17.
Further, the entrance of low voltage bypass shut-off valve 10 and 8 entrance of heat supply shut-off valve and low voltage bypass regulating valve 7, in
Low pressure (LP) cylinder is connected to the outlet connection of extraction check valve 12.
The operation method of the cogeneration units bypass Heating Adjustment running gear, operates in accordance with the following methods：
When needing to reduce electric load：Cannot be reduced again in boiler load, by reduction into high pressure cylinder 5, in
The quantity of steam of cylinder pressure 6 and low pressure (LP) cylinder 15 achievees the purpose that reduce electric load；The extra steam that boiler generates passes through high pressure turbine by
Regulating valve 2,7 pressure and temperature reducing direct heating of low voltage bypass regulating valve, reach reduction electric load, increase the purpose of thermic load；
When needing to increase electric load：By increase into high pressure cylinder 5, the quantity of steam of intermediate pressure cylinder 6 and low pressure (LP) cylinder 15, increase
Electric load；If quantity of steam is inadequate, high pressure turbine by regulating valve 2 and low voltage bypass regulating valve 7 can be gradually turned down, until all closing
It closes, then improves boiler load, continue growing electric load.Low voltage bypass shut-off valve 10 is closed always, until heat supply
It is opened after phase.Directly the injury to unit can be caused by aforesaid operations, in order to avoid injury, by above-mentioned connection type and
Low voltage bypass shut-off valve 10 is correctly adjusted, mesolow cylinder is connected to extraction check valve 12, and mesolow cylinder is connected to shut-off valve 13, can be with
Avoid this injury.
In the operation of lifting load, in order to avoid the injury to unit, need to adjust each valve and various operations ginseng
Number.When operating each operating parameter, under auto state, automatic monitoring and adjust automatically；Under manual mode, by skill
The operating parameter control specification that art personnel provide is operated and is adjusted.
The present invention technical characteristic be：When load down：It is constant in boiler load, by reduction enter high pressure cylinder and
The throttle flow of intermediate pressure cylinder, and control low pressure (LP) cylinder throttle flow reduce acting, extra heat, pass through high pressure and low voltage bypass regulating valve
Initial station heat supply is sent to after pressure and temperature reducing；
Increase when load up and enter high, intermediate pressure cylinder throttle flow, reduces high pressure and low voltage bypass regulating valve quantity of steam, until
High pressure and low voltage bypass regulating valve Close All, while boiler load can also change, and the peak modulation capacity of unit is made to greatly improve,
Reach the ability of depth peak regulation.
Feature of present invention is embodied as：When load down, by turning down high pressure cylinder regulating valve, opens big high pressure turbine by and adjust
Valve makes boiler load remain unchanged, and keeps high pressure cylinder steam discharge parameter within the limits prescribed.Intermediate pressure cylinder regulating valve is adjusted, is reduced
Intermediate pressure cylinder throttle flow makes unit thrust variation in allowed limits.Pass through high pressure turbine by regulating valve and low voltage bypass regulating valve
Excess steam is sent into heat supply initial station by the way that for heat regulating valve, the heating load adjusted into initial station is complete by control by pressure and temperature reducing
At in internal system by the process that electrotransformation is heat.Otherwise operation can complete the process for electricity by thermal transition.
The beneficial effects of the invention are as follows：The method that may be implemented not needing boiler combustion adjustment by above system is realized
The purpose of electric load is adjusted, minimum load can reach 17% or less rated load.Pass through therrmodynamic system internal adjustment and behaviour
Make, so that it may realize internal system electrotransformation at heat or thermal transition at electric process.This process is from maximum load to minimum load
It is flexibly adjustable, if the method for recycling boiler combustion adjustment, can have the function that the further depth peak regulation of unit.It can be with
When avoiding power grid from not needing electricity, due to the limitation of boiler load, there is electric load and drop the passive situation that do not get off.It avoids putting
The clean energy resourcies such as wind-power electricity generation and solar power generation are abandoned, and energy waste phenomenon is caused to occur.
Description of the drawings：
Fig. 1 is the structural diagram of the present invention；
In figure：1, boiler, 2, high pressure turbine by regulating valve, 3, high pressure cylinder regulating valve, 4, intermediate pressure cylinder regulating valve, 5, high pressure cylinder,
6, intermediate pressure cylinder, 7, low voltage bypass regulating valve, 8, heat supply shut-off valve, 9, for heat regulating valve, 10, low voltage bypass shut-off valve, 11, heat supply
Non-return valve, 12, mesolow cylinder be connected to extraction check valve, 13, mesolow cylinder be connected to shut-off valve, 14, mesolow cylinder be connected to regulating valve,
15, low pressure (LP) cylinder, 16, attemperator, 17, condenser, 18, high pressure cylinder steam discharge non-return valve.
Specific implementation mode：
To illustrate the invention the characteristics of, the invention will be further described with reference to the accompanying drawings and examples.
Query graph 1, a kind of cogeneration units bypass Heating Adjustment running gear and operation method, the running gear,
Including boiler 1, high pressure turbine by regulating valve 2, high pressure cylinder regulating valve 3, intermediate pressure cylinder regulating valve 4, low voltage bypass regulating valve 7, heat supply pass
Disconnected valve 8, for heat regulating valve 9, low voltage bypass shut-off valve 10, heat supply non-return valve 11, mesolow cylinder is connected to extraction check valve 12, in it is low
Cylinder pressure is connected to shut-off valve 13, and mesolow cylinder is connected to regulating valve 14, low pressure (LP) cylinder 15, attemperator 16, condenser 17, intermediate pressure cylinder 6, high pressure
Cylinder 5, high pressure cylinder steam discharge non-return valve 18.
The main-steam outlet of the boiler 1 is separately connected the entrance of high pressure turbine by regulating valve 2 and high pressure cylinder regulating valve 3, institute
Outlet connection boiler cold section of entrance of 1 reheating of high pressure turbine by regulating valve 2 is stated, the outlet of the high pressure cylinder regulating valve 3 connects high pressure
The entrance of cylinder 5；18 entrance of outlet connection high pressure cylinder steam discharge non-return valve of the high pressure cylinder 5；The reheating hot arc of the boiler 1 steams
Vapor outlet is separately connected the entrance of intermediate pressure cylinder regulating valve 4 and low voltage bypass regulating valve 7, and the outlet of medium pressure cylinder regulating valve 4 connects
Connect 6 entrance of intermediate pressure cylinder, the outlet of the low voltage bypass regulating valve 7 is separately connected heat supply shut-off valve 8, low voltage bypass shut-off valve 10
Entrance is connected to the outlet of extraction check valve 12 with mesolow cylinder；13 entrance of outlet shut-off valve of medium pressure cylinder 6 is low in
Cylinder pressure is connected to the entrance of regulating valve 14；The outlet of the low voltage bypass auxiliary shut-off valve 10 connects 17 entrance of condenser；In described
The outlet of low pressure (LP) cylinder connection shut-off valve 13 is connected to mesolow cylinder connection 12 entrance of extraction check valve, and the mesolow cylinder is connected to steam extraction
8 entrance of outlet connection heat supply shut-off valve of non-return valve 12；The outlet of the heat supply shut-off valve 8 connects external heat supply pipeline；It is described
Mesolow cylinder is connected to the entrance of the outlet connection low pressure (LP) cylinder 15 of regulating valve 14.The outlet of the low pressure (LP) cylinder 15 is separately connected condenser
17 entrances.
The outlet of medium pressure cylinder 6 is also connected to regulating valve 14 by mesolow cylinder with the entrance of low pressure (LP) cylinder 15 and connect；It is described
The entrance of mesolow cylinder connection shut-off valve 13 is connected on the entrance of mesolow cylinder connection regulating valve 14.
The heat supply shut-off valve 8 is also sequentially installed with in the connection line of external heat supply pipeline for heat regulating valve 9 and confession
Hot non-return valve 11.
The outlet of the low voltage bypass shut-off valve 10 is also equipped with attemperator with the connecting line of 17 entrance of condenser
16。
The operation method of the cogeneration units bypass Heating Adjustment running gear, operates in accordance with the following methods：
When needing to reduce electric load：Cannot be reduced again in boiler load, by reduction into high pressure cylinder 5, in
The quantity of steam of cylinder pressure 6 and low pressure (LP) cylinder 15 achievees the purpose that reduce electric load；The extra steam that boiler generates passes through high pressure turbine by
Regulating valve 2,7 pressure and temperature reducing direct heating of low voltage bypass regulating valve, reach reduction electric load, increase the purpose of thermic load；
When needing to increase electric load：By increase into high pressure cylinder 5, the quantity of steam of intermediate pressure cylinder 6 and low pressure (LP) cylinder 15, increase
Electric load；If quantity of steam is inadequate, high pressure turbine by regulating valve 2 and low voltage bypass regulating valve 7 can be gradually turned down.Until all closing
It closes, then improves boiler load, continue growing electric load.Low voltage bypass shut-off valve 10 is closed always.
It in the operation of lifting load, needs to adjust each valve and various operating parameters, operation ginseng each in operation
Number, under auto state, automatic monitoring, and be automatically brought into operation；Under manual mode, the operating parameter that is provided by technical staff
Control specification is operated, and no it will cause the damages of equipment.
The advantageous effect of the embodiment of the present invention is：By flexibly adjusting internal electrically and thermally allocation proportion, improve electricity and
The flexibility that thermic load changes each other has reached the ability of depth peak regulation, in the case where unit cold source energy is constant, passes through tune
It is whole to reach high electric load and minimum thermic load, minimum electric load (the 17% or less of rated load) can also be reached
With highest thermic load, flexible and changeable, peak regulation range is big, economic and reliable.
Above example and attached drawing are only used to illustrate the technical scheme of the present invention, and are not limitation of the present invention, reference
Preferred embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, the art
Those of ordinary skill in the essential scope of the present invention variations, modifications, additions or substitutions made without departure from the present invention
Objective, should also belong to the present invention claims.
Claims (6)
1. a kind of cogeneration units bypass Heating Adjustment running gear, it is characterised in that：Low voltage bypass including newly increasing closes
Disconnected valve (10), mesolow cylinder connection extraction check valve (12) are connected to shut-off valve (13) with mesolow cylinder, connect each other between them,
And with the low voltage bypass regulating valve (7) in original system, high pressure turbine by regulating valve (2), boiler (1), high pressure cylinder (5), intermediate pressure cylinder
(6), low pressure (LP) cylinder (15) and condenser (17) connection, constitute a special system with new function；The master of the boiler (1)
Steam (vapor) outlet is separately connected the entrance of high pressure turbine by regulating valve (2) and high pressure cylinder regulating valve (3), the high pressure turbine by regulating valve
(2) outlet connects cold section of entrance of boiler (1) reheating, and outlet connection high pressure cylinder (5) of the high pressure cylinder regulating valve (3) enters
Mouthful；The outlet of the high pressure cylinder (5) connects high pressure cylinder steam discharge non-return valve (18) entrance；The reheating hot arc steam of the boiler (1)
Outlet is separately connected the entrance of intermediate pressure cylinder regulating valve (4) and low voltage bypass regulating valve (7), and medium pressure cylinder regulating valve (4) go out
Mouth connection intermediate pressure cylinder (6) entrance, the outlet of the low voltage bypass regulating valve (7) is separately connected heat supply shut-off valve (8), low voltage bypass
The entrance of shut-off valve (10) is connected to the outlet of extraction check valve (12) with mesolow cylinder；In the outlet of medium pressure cylinder (6)
Low pressure (LP) cylinder connection shut-off valve (13) entrance is connected to the entrance of regulating valve (14) with mesolow cylinder；The low voltage bypass shut-off valve (10)
Outlet connect condenser (17) entrance；The mesolow cylinder connection shut-off valve (13), which exports, is connected to the connection steam extraction of mesolow cylinder
The outlet of non-return valve (12) entrance, the mesolow cylinder connection extraction check valve (12) connects heat supply shut-off valve (8) entrance；It is described
The outlet of heat supply shut-off valve (8) connects external heat supply pipeline；The outlet of the mesolow cylinder connection regulating valve (14) connects low pressure
The entrance of cylinder (15).
2. cogeneration units according to claim 1 bypass Heating Adjustment running gear, it is characterised in that：It is low in described
The outlet of cylinder pressure connection extraction check valve (12) is connected to low voltage bypass shut-off valve (10), heat supply shut-off valve (8) entrance and low pressure
The outlet of bypass valve (7).
3. cogeneration units according to claim 1 bypass Heating Adjustment running gear, it is characterised in that：It is low in described
Cylinder pressure connection shut-off valve (13) entrance is connected to the outlet of mesolow cylinder connection 14 entrance of regulating valve and intermediate pressure cylinder (6).
4. cogeneration units according to claim 1 bypass Heating Adjustment running gear, it is characterised in that：Low voltage bypass
The entrance of shut-off valve (10) is connected to extraction check valve with heat supply shut-off valve (8) entrance and low voltage bypass regulating valve (7), mesolow cylinder
(12) outlet connection.
5. a kind of cogeneration units bypass Heating Adjustment running gear according to any one of claims 1 to 5
Operation method, it is characterised in that：It operates in accordance with the following methods：
When needing to reduce electric load：It cannot be reduced again in boiler load, high pressure cylinder (5), middle pressure entered by reduction
The quantity of steam of cylinder (6) and low pressure (LP) cylinder (15) achievees the purpose that reduce electric load；Boiler generate extra steam by high pressure by
Road regulating valve (2), low voltage bypass regulating valve (7) pressure and temperature reducing direct heating, reach reduction electric load, increase the mesh of thermic load
's；
When needing to increase electric load：By increase into high pressure cylinder (5), the quantity of steam of intermediate pressure cylinder (6) and low pressure (LP) cylinder (15), increase
Power up load；If quantity of steam is inadequate, can gradually turn down high pressure turbine by regulating valve (2) and low voltage bypass regulating valve (7) until
Close All, and low voltage bypass shut-off valve (10) is closed always, then improves boiler load, and it is negative to continue growing electricity
Lotus.
6. cogeneration units depth peaking operation method according to claim 6, it is characterised in that：In lifting load
In operation, need to adjust each valve and various operating parameters, when operating each operating parameter, under auto state, system
Automatic monitoring and adjust automatically；Under manual mode, the operating parameter control specification provided by technical staff is operated and is adjusted
It is whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810472896.1A CN108662647A (en) | 2018-05-09 | 2018-05-09 | Cogeneration units bypass Heating Adjustment running gear and operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810472896.1A CN108662647A (en) | 2018-05-09 | 2018-05-09 | Cogeneration units bypass Heating Adjustment running gear and operation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108662647A true CN108662647A (en) | 2018-10-16 |
Family
ID=63779970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810472896.1A Pending CN108662647A (en) | 2018-05-09 | 2018-05-09 | Cogeneration units bypass Heating Adjustment running gear and operation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108662647A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878708A (en) * | 2019-08-28 | 2020-03-13 | 华能国际电力股份有限公司 | An economical and practical industrial steam supply system with large flow and high parameters |
| CN112097240A (en) * | 2020-10-16 | 2020-12-18 | 西安热工研究院有限公司 | A system and method for high-speed load lifting and peak regulation of thermal power units |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2852673A1 (en) * | 2003-03-17 | 2004-09-24 | Baelz Gmbh Helmut | Heat transfer station for heating building, has heat exchanger with inlet connection coupled to supply pipe and return connection coupled to collecting pipe, and heat delivery circuit including inlet pipe and return pipe |
| CN202788961U (en) * | 2012-07-10 | 2013-03-13 | 大唐双鸭山热电有限公司 | Improved safety heating system between two heat machine units of thermal power station |
| CN206055732U (en) * | 2016-08-30 | 2017-03-29 | 大唐东北电力试验研究所有限公司 | A kind of new heat-supplying unit |
| CN106838865A (en) * | 2017-03-28 | 2017-06-13 | 中国华能集团公司 | The extraction for heat supply electric power station system and method for work of a kind of complete thermoelectricity decoupling |
| CN206280111U (en) * | 2016-10-31 | 2017-06-27 | 中国电力工程顾问集团华北电力设计院有限公司 | Suitable for the therrmodynamic system of thermal power plant unit depth peak regulation |
| CN107060917A (en) * | 2016-12-16 | 2017-08-18 | 大唐东北电力试验研究所有限公司 | Cogeneration units depth peak regulation system and method are improved using unit bypass heat supply |
| CN206539378U (en) * | 2016-12-16 | 2017-10-03 | 大唐东北电力试验研究所有限公司 | Cogeneration units depth peak regulation system is improved using unit bypass heat supply |
-
2018
- 2018-05-09 CN CN201810472896.1A patent/CN108662647A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2852673A1 (en) * | 2003-03-17 | 2004-09-24 | Baelz Gmbh Helmut | Heat transfer station for heating building, has heat exchanger with inlet connection coupled to supply pipe and return connection coupled to collecting pipe, and heat delivery circuit including inlet pipe and return pipe |
| CN202788961U (en) * | 2012-07-10 | 2013-03-13 | 大唐双鸭山热电有限公司 | Improved safety heating system between two heat machine units of thermal power station |
| CN206055732U (en) * | 2016-08-30 | 2017-03-29 | 大唐东北电力试验研究所有限公司 | A kind of new heat-supplying unit |
| CN206280111U (en) * | 2016-10-31 | 2017-06-27 | 中国电力工程顾问集团华北电力设计院有限公司 | Suitable for the therrmodynamic system of thermal power plant unit depth peak regulation |
| CN107060917A (en) * | 2016-12-16 | 2017-08-18 | 大唐东北电力试验研究所有限公司 | Cogeneration units depth peak regulation system and method are improved using unit bypass heat supply |
| CN206539378U (en) * | 2016-12-16 | 2017-10-03 | 大唐东北电力试验研究所有限公司 | Cogeneration units depth peak regulation system is improved using unit bypass heat supply |
| CN106838865A (en) * | 2017-03-28 | 2017-06-13 | 中国华能集团公司 | The extraction for heat supply electric power station system and method for work of a kind of complete thermoelectricity decoupling |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878708A (en) * | 2019-08-28 | 2020-03-13 | 华能国际电力股份有限公司 | An economical and practical industrial steam supply system with large flow and high parameters |
| CN112097240A (en) * | 2020-10-16 | 2020-12-18 | 西安热工研究院有限公司 | A system and method for high-speed load lifting and peak regulation of thermal power units |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108533340A (en) | Cogeneration units depth peak regulation bypasses heat supply running device and operation method | |
| CN206668346U (en) | The system that the high other and reheating heat of boiler promotes peak load regulation flexibility | |
| CN206035552U (en) | Cogeneration vapour turbine system | |
| CN207117185U (en) | A kind of power grid frequency modulation system based on electrode boiler | |
| CN108049923B (en) | Three-exhaust 200MW unit medium-low pressure cylinder combined zero-output heat supply system and method | |
| CN107631288A (en) | A kind of method of fired power generating unit depth peak regulation and backheat energy-conservation | |
| CN105046578B (en) | Test the experimental method of cogeneration units heat supply period electric load adjustment capability | |
| CN108035777A (en) | A kind of fired power generating unit mesolow cylinder combines zero output heating system and method | |
| CN106194297A (en) | The double branch road heating system of a kind of cogeneration turbine | |
| CN102787870A (en) | Method for improving primary frequency modulation capacity of heat supply unit | |
| CN110529209B (en) | Solar photo-thermal heat storage system and method for deep peak shaving of cogeneration unit | |
| CN207113211U (en) | High temperature electrode formula hot-water boiler | |
| CN111206970B (en) | Peak regulating system utilizing steam jet and steam extractor in thermal power plant and control method | |
| CN106499455A (en) | Combined-cycle power plant's soda pop backheat and fuel heating integrated put forward effect system | |
| CN114635766B (en) | Valve setting and controlling system and method for heat supply steam extraction pipeline of pressurized water reactor nuclear power unit | |
| CN209145663U (en) | A kind of heat supply steam extraction optimization system based on small * damage Mixing Technology | |
| CN113357689A (en) | Method for improving adjusting capacity of heat supply unit | |
| CN112361324A (en) | Energy-saving and consumption-reducing method for condensate pump of double reheating unit | |
| CN111255529B (en) | Rapid response automatic power generation control system and method during operation of heat supply cylinder cutting unit | |
| CN208519750U (en) | A kind of thermal power plant's fused salt accumulation of heat peak regulation system heated using main steam | |
| CN111852595A (en) | A high-efficiency thermal power plant deep peak regulation system and method | |
| CN206845247U (en) | One kind enhancing power plant flexibility therrmodynamic system | |
| CN113339089A (en) | Efficient peak regulation steam turbine system and working method thereof | |
| CN112412557B (en) | Steam turbine high-side flexible heat supply system with auxiliary frequency modulation function | |
| CN211854139U (en) | Heating system based on low-pressure optical axis technology of steam turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181016 |