CN208734387U - Heating system is run based on 200MW pure condensate unit back pressuce machine - Google Patents
Heating system is run based on 200MW pure condensate unit back pressuce machine Download PDFInfo
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- CN208734387U CN208734387U CN201820773489.XU CN201820773489U CN208734387U CN 208734387 U CN208734387 U CN 208734387U CN 201820773489 U CN201820773489 U CN 201820773489U CN 208734387 U CN208734387 U CN 208734387U
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Abstract
The utility model discloses one kind to run heating system based on 200MW pure condensate unit back pressuce machine, which includes: the second valve group to be arranged mesolow cylinder communicating pipe low pressure (LP) cylinder is truncated into vapour；It is cooling that extraction line and the first valve group make the intermediate pressure cylinder steam discharge in system enter heat exchangers for district heating；The 7th valve group and air pipeline are set on communicating pipe so that low pressure (LP) cylinder executes air blast cooling；Setting evacuates air pipe, third valve group, exhaust fan to extract the hot-air in low pressure (LP) cylinder out on condenser；First condensing water conduit is equipped with the 4th valve group, the second condensing water conduit and the 5th valve group, and third condensing water conduit and the 6th valve group collective effect condensed water and drain recovery utilize；Heat exchangers for district heating is connected to heat heat supply network recirculated water with condensation water pot to complete cooling unit steam discharge and heat heat supply network circulating water heating.The system not only ensure that the flexible switching of unit pure condensate mode and back pressure machine mode, but also realizes unit cold source energy whole recycling and increase heat capacity.
Description
Technical field
The utility model relates to technical field of electric power, are run more particularly to one kind based on 200MW pure condensate unit back pressuce machine
Heating system.
Background technique
As the management of Environmental pollution increases, wanted to backward production facilities mandatory standard related to not meeting
The unit asked will be implemented to eliminate, and accelerate to eliminate single-machine capacity 200MW grade and following projected life and expire and do not implement heat supply and change
The conventional fossil-fired unit made is problem urgently to be resolved instantly.
Utility model content
Based on this, it is necessary to traditional technology there are aiming at the problem that, provide and a kind of transported based on 200MW pure condensate unit back pressuce machine
Row heating system, by the system be advantageously implemented by pure condensate Transformation of Unit be back pressure unit when, small investment, construction is simple, just
In the small beneficial effect of operation, system reform range.
In a first aspect, the utility model embodiment, which provides one kind, runs heat supply system based on 200MW pure condensate unit back pressuce machine
System, the system comprises: intermediate pressure cylinder, low pressure (LP) cylinder, mesolow cylinder communicating pipe, the first valve group, the second valve group, third valve
Group, the 4th valve group, the 5th valve group, the 6th valve group, the 7th valve group, extraction line, condenser, exhaust fan, first coagulate
Bear water pipeline, the second condensing water conduit, third condensing water conduit, heat exchangers for district heating, condensation water pot and oxygen-eliminating device；Medium pressure
Cylinder is connected with the low pressure (LP) cylinder by the mesolow cylinder communicating pipe, and second valve is arranged in the mesolow cylinder communicating pipe
Group truncation low pressure (LP) cylinder is operated into vapour；The extraction line and first valve group make the medium pressure cylinder steam discharge in the system
Cooling down operation is carried out into the heat exchangers for district heating；7th valve group and air pipeline are set on communicating pipe so that described low
Cylinder pressure executes air blast cooling down operation；It is common to evacuate air pipe, the third valve group, the exhaust fan for setting on the condenser
Effect is to extract the hot-air in the low pressure (LP) cylinder out；First condensing water conduit is coagulated equipped with the 4th valve group, described second
Pipeline and the 5th valve group are born water, the third condensing water conduit and the 6th valve group collective effect are to complete to condense
The operation that water and drain recovery utilize；The heat exchangers for district heating and the condensation water pot are connected with each other to heat heat supply network recirculated water
To complete cooling unit steam discharge and heating heat supply network circulating water heating operation.
In one of the embodiments, further include: connecting shaft, the connecting shaft turn for connecting generator and high pressure
Son.
In one of the embodiments, further include: circulation pump of heat-supply network, the circulation pump of heat-supply network and the heat supply network heat
Device is connected by communicating pipe.
In one of the embodiments, further include: condensate pump, the condensate pump and the condenser pass through described the
One condensing water conduit is connected.
In one of the embodiments, further include: hot well, the hot well and the condenser integrated molding, the heat
Well is connected by first condensing water conduit with condensate pump.
It is provided by the utility model that heating system is run based on 200MW pure condensate unit back pressuce machine, comprising: intermediate pressure cylinder, low pressure
Cylinder, mesolow cylinder communicating pipe, the first valve group, the second valve group, third valve group, the 4th valve group, the 5th valve group, the 6th
Valve group, the 7th valve group, extraction line, condenser, exhaust fan, the first condensing water conduit, the second condensing water conduit, third are solidifying
Bear water pipeline, heat exchangers for district heating, condensation water pot and oxygen-eliminating device；Intermediate pressure cylinder is connected with low pressure (LP) cylinder by mesolow cylinder communicating pipe
It connects, the second valve group is set mesolow cylinder communicating pipe, low pressure (LP) cylinder is truncated into vapour operation；Extraction line and the first valve group make system
In intermediate pressure cylinder steam discharge enter heat exchangers for district heating carry out cooling down operation；The 7th valve group and air pipeline are set on communicating pipe so that
Low pressure (LP) cylinder executes air blast cooling down operation；Setting evacuates air pipe, third valve group, exhaust fan collective effect to extract out on condenser
Hot-air in low pressure (LP) cylinder；First condensing water conduit is equipped with the 4th valve group, the second condensing water conduit and the 5th valve group, the
Three condensing water conduits and the 6th valve group collective effect are to complete the operation that condensed water and drain recovery utilize；Heat exchangers for district heating and
Condensation water pot is connected with each other to heat heat supply network recirculated water to complete cooling unit steam discharge and heat the operation of heat supply network circulating water heating.
The system, i.e. 200MW pure condensate unit back pressuce machine run heating system, both ensure that the spirit of unit pure condensate mode and back pressure machine mode
Switching living, and realize unit cold source energy whole recycling and increase heat capacity.
Detailed description of the invention
Fig. 1 is one of the utility model one embodiment based on 200MW pure condensate unit back pressuce machine operation heating system
Structural schematic diagram.
Wherein, the first valve group of 1-, the second valve group of 2-, 3- third valve group, the 4th valve group of 4-, the 5th valve of 5-
Group, the 6th valve group of 6-, the 7th valve group of 7-, the first condensing water conduit of 8-, the second condensing water conduit of 9-, 10- third condensed water
Pipeline, 11- mesolow cylinder communicating pipe, 12- pump-line, 13- intermediate pressure cylinder, 14- low pressure (LP) cylinder, 15- heat exchangers for district heating, 16- heat supply network
Water circulating pump, 17- exhaust fan, 18- condenser, 19- condensate pump, 20- oxygen-eliminating device, 21- hot well, 22- condense water pot, 23- heat
Net supplies water, 24- heat supply network return water, 25- air.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example is based on 200MW pure condensate unit back pressuce machine operation heating system to the utility model one kind and is further elaborated.It should
Understand, specific embodiment described herein only to explain the utility model, is not used to limit the utility model.
To meet national energy conservation and emission reduction policy requirements, and increase power plant's index competitive strength, 200MW grade and following pure condensate
The transformation of units back pressure type thermal power plant unit.After the transformation of pure condensate unit back pressuce machine heating system, unit exhausted spare heat is all recycled,
The cold source energy that generates electricity is zero, and coal consumption for power generation can be reduced to 140g/kWh；After the transformation of unit back pressuce machine heating system, 200MW grade
Unit, which can be realized, to be increased heat capacity 330MW or so and runs by electricity determining by heat mode, and heat supply and gene-ration revenue significantly mention in factory
It is high.
In order to realize by pure condensate Transformation of Unit be back pressure unit when, small investment, construction is simple, convenient for operation, the system reform
The small equal requirement of range, spy's invention 200MW pure condensate unit back pressuce machine run heating system.
As shown in connection with fig. 1, heating system is run based on 200MW pure condensate unit back pressuce machine, comprising: intermediate pressure cylinder 13, low pressure (LP) cylinder
14, mesolow cylinder communicating pipe 11, the first valve group 1, the second valve group 2, third valve group 3, the 4th valve group 4, the 5th valve
Group the 5, the 6th valve group 6, the 7th valve group 7, extraction line 12, condenser 18, exhaust fan 17, the first condensing water conduit 8, second
Condensing water conduit 9, third condensing water conduit 10, heat exchangers for district heating 15, condensation water pot 22 and oxygen-eliminating device 20；Intermediate pressure cylinder 13 with it is low
Cylinder pressure 14 is arranged the second valve group 2 and low pressure (LP) cylinder 14 is truncated mesolow cylinder communicating pipe 11 by being connected mesolow cylinder communicating pipe 11
It is operated into vapour；Extraction line 12 and the first valve group 1 make 13 steam discharge of intermediate pressure cylinder in system enter heat exchangers for district heating 15 carry out it is cold
But it operates；The 7th valve group 7 and air pipeline are set on communicating pipe so that low pressure (LP) cylinder 14 executes air blast cooling down operation；Condenser 18
Upper setting evacuates air pipe, third valve group 3,17 collective effect of exhaust fan to extract the hot-air in low pressure (LP) cylinder out；First condensation
Waterpipe 8 is equipped with the 4th valve group 4, the second condensing water conduit 9 and the 5th valve group 5, third condensing water conduit 10 and the 6th
6 collective effect of valve group is to complete the operation that condensed water and drain recovery utilize；Heat exchangers for district heating 15 and condensation water pot 22 are mutual
Connection completes cooling unit steam discharge to heat heat supply network recirculated water and heats the operation of heat supply network circulating water heating.
In one embodiment, heating system is run based on 200MW pure condensate unit back pressuce machine further include: connecting shaft, connection
Axis is for connecting generator and High inter case.
In addition, running heating system based on 200MW pure condensate unit back pressuce machine further include: circulation pump of heat-supply network 16, heat supply network follows
Ring water pump 16 is connected with heat exchangers for district heating 15 by communicating pipe.In addition, in one embodiment, being based on 200MW pure condensate unit
Back pressure machine runs heating system further include: condensate pump 19, condensate pump 19 pass through 8 phase of the first condensing water conduit with condenser 18
Connection.
Further, in one embodiment, heating system is run based on 200MW pure condensate unit back pressuce machine further include: heat
Well 21, hot well 21 and 18 integrated molding of condenser, hot well are connected by the first condensing water conduit 8 with condensate pump 19.
Specifically, as shown in Figure 1, being replaced to realize that unit heat supply period is run by back pressure machine heat-supplying mode with connecting shaft
Former low pressure (LP) cylinder rotor plays connection generator and High inter case；Second valve group 2 of the increase of mesolow cylinder communicating pipe 11, which plays, cuts
Disconnected low pressure (LP) cylinder 14 is acted on into vapour；Newly-increased extraction line 12 and the first valve group 1 make 13 steam discharge of unit intermediate pressure cylinder enter heat supply network heating
Device 15 is cooled down；Increase by the 7th valve group 7 on communicating pipe and air pipeline realizes the air-blast cooled purpose of low pressure (LP) cylinder 14；?
Increase on condenser 18 and evacuate feed channel 12, third valve group 3, exhaust fan 17, to extract the hot-air in low pressure (LP) cylinder 14 out；In original
Increase by the 4th valve group 4 on first condensing water conduit 8, increase the second condensing water conduit 9 and the 5th valve group 5, it is solidifying to increase third
It bears water pipeline 10 and the 6th valve group 6 achievees the purpose that condensed water and drain recovery utilize；Increase heat supply network heating in original system
Device 15 and condensation water pot 22 achieve the purpose that cooling unit steam discharge and heating heat supply network circulating water heating to heat heat supply network recirculated water.
It should be noted that the second valve group 2, the 4th valve group 4 are closed when heat supply period unit back pressuce machine mode is run,
It opens the first valve group 1, open the 7th valve group 7, third valve group 3, the 5th valve group 5, the 6th valve group 6, unit low pressure
14 steam discharge of cylinder all passes through extraction line 12 and enters heat exchangers for district heating 15, and condensed water deposit is solidifying after heat exchangers for district heating 15 is cooling
Tank 22 is born water, the condensed water of water pot 22 is condensed and the hydrophobic of former condenser hotwell 21 enters oxygen-eliminating device 20 through condensate pump 19 and follow
Ring is to boiler.It is run in unit in order to cool down the air blast heat of connecting shaft, negative pressure is formed in condenser 18 by exhaust fan 17,
Cold air is discharged after the 7th valve group 7 carries out cooling into low pressure (LP) cylinder 14 through exhaust fan 17.
Further, when pure condensate mode is run, steam turbine low-pressure connecting shaft replaces former low pressure rotor, closes the first valve group
1, the 7th valve group 7, third valve group 3, the 5th valve group 5, the 6th valve group 6 are opened, the second valve group 2, the 4th valve are opened
Door group 4,13 steam discharge of unit intermediate pressure cylinder is discharged into condenser 18 after low pressure rotor does work, and then enters oxygen-eliminating device through condensate pump 19
20 and it is recycled to boiler.
It is provided by the utility model that heating system is run based on 200MW pure condensate unit back pressuce machine, comprising: intermediate pressure cylinder, low pressure
Cylinder, mesolow cylinder communicating pipe, the first valve group, the second valve group, third valve group, the 4th valve group, the 5th valve group, the 6th
Valve group, the 7th valve group, extraction line, condenser, exhaust fan, the first condensing water conduit, the second condensing water conduit, third are solidifying
Bear water pipeline, heat exchangers for district heating, condensation water pot and oxygen-eliminating device；Intermediate pressure cylinder is connected with low pressure (LP) cylinder by mesolow cylinder communicating pipe
It connects, the second valve group is set mesolow cylinder communicating pipe, low pressure (LP) cylinder is truncated into vapour operation；Extraction line and the first valve group make system
In intermediate pressure cylinder steam discharge enter heat exchangers for district heating carry out cooling down operation；The 7th valve group and air pipeline are set on communicating pipe so that
Low pressure (LP) cylinder executes air blast cooling down operation；Setting evacuates air pipe, third valve group, exhaust fan collective effect to extract out on condenser
Hot-air in low pressure (LP) cylinder；First condensing water conduit is equipped with the 4th valve group, the second condensing water conduit and the 5th valve group, the
Three condensing water conduits and the 6th valve group collective effect are to complete the operation that condensed water and drain recovery utilize；Heat exchangers for district heating and
Condensation water pot is connected with each other to heat heat supply network recirculated water to complete cooling unit steam discharge and heat the operation of heat supply network circulating water heating.
The system, i.e. 200MW pure condensate unit back pressuce machine run heating system, both ensure that the spirit of unit pure condensate mode and back pressure machine mode
Switching living, and realize unit cold source energy whole recycling and increase heat capacity.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (5)
1. one kind runs heating system based on 200MW pure condensate unit back pressuce machine, which is characterized in that the system comprises: intermediate pressure cylinder,
Low pressure (LP) cylinder, mesolow cylinder communicating pipe, the first valve group, the second valve group, third valve group, the 4th valve group, the 5th valve group,
6th valve group, the 7th valve group, extraction line, condenser, exhaust fan, the first condensing water conduit, the second condensing water conduit,
Three condensing water conduits, heat exchangers for district heating, condensation water pot and oxygen-eliminating device；
Medium pressure cylinder is connected with the low pressure (LP) cylinder by the mesolow cylinder communicating pipe, the mesolow cylinder communicating pipe setting
Second valve group is truncated low pressure (LP) cylinder and operates into vapour；The extraction line and first valve group make the institute in the system
It states intermediate pressure cylinder steam discharge and carries out cooling down operation into the heat exchangers for district heating；7th valve group and air hose are set on communicating pipe
Road is so that the low pressure (LP) cylinder executes air blast cooling down operation；Setting evacuates air pipe, the third valve group, institute on the condenser
Exhaust fan collective effect is stated to extract the hot-air in the low pressure (LP) cylinder out；First condensing water conduit is equipped with the 4th valve
Group, second condensing water conduit and the 5th valve group, the third condensing water conduit and the 6th valve group are common
Effect is to complete the operation that condensed water and drain recovery utilize；The heat exchangers for district heating and the condensation water pot be connected with each other to
Heating heat supply network recirculated water is to complete cooling unit steam discharge and heat the operation of heat supply network circulating water heating.
2. according to claim 1 run heating system based on 200MW pure condensate unit back pressuce machine, which is characterized in that also wrap
Include: connecting shaft, the connecting shaft is for connecting generator and High inter case.
3. according to claim 1 run heating system based on 200MW pure condensate unit back pressuce machine, which is characterized in that also wrap
Include: circulation pump of heat-supply network, the circulation pump of heat-supply network are connected with the heat exchangers for district heating by communicating pipe.
4. according to claim 1 run heating system based on 200MW pure condensate unit back pressuce machine, which is characterized in that also wrap
Include: condensate pump, the condensate pump are connected with the condenser by first condensing water conduit.
5. according to claim 1 run heating system based on 200MW pure condensate unit back pressuce machine, which is characterized in that also wrap
Include: hot well, the hot well and the condenser integrated molding, the hot well pass through first condensing water conduit and condensed water
Pump is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820773489.XU CN208734387U (en) | 2018-05-23 | 2018-05-23 | Heating system is run based on 200MW pure condensate unit back pressuce machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820773489.XU CN208734387U (en) | 2018-05-23 | 2018-05-23 | Heating system is run based on 200MW pure condensate unit back pressuce machine |
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| Publication Number | Publication Date |
|---|---|
| CN208734387U true CN208734387U (en) | 2019-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820773489.XU Expired - Fee Related CN208734387U (en) | 2018-05-23 | 2018-05-23 | Heating system is run based on 200MW pure condensate unit back pressuce machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091045A (en) * | 2019-12-23 | 2021-07-09 | 无锡华光锅炉股份有限公司 | Backpressure unit and extraction condensing unit structure and cross operation method |
-
2018
- 2018-05-23 CN CN201820773489.XU patent/CN208734387U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091045A (en) * | 2019-12-23 | 2021-07-09 | 无锡华光锅炉股份有限公司 | Backpressure unit and extraction condensing unit structure and cross operation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190412 Termination date: 20200523 |