CN106761975A - A kind of pure condensate generating set steam discharge processing unit - Google Patents
A kind of pure condensate generating set steam discharge processing unit Download PDFInfo
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- CN106761975A CN106761975A CN201611065499.XA CN201611065499A CN106761975A CN 106761975 A CN106761975 A CN 106761975A CN 201611065499 A CN201611065499 A CN 201611065499A CN 106761975 A CN106761975 A CN 106761975A
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 239000007921 spray Substances 0.000 claims description 5
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/32—Collecting of condensation water; Drainage ; Removing solid particles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Abstract
The invention discloses a kind of pure condensate generating set steam discharge processing unit, to realize the recycling to turbine discharge heat, the thermal efficiency of steam power plant is improved.The pure condensate generating set steam discharge processing unit includes steam turbine, condenser, jetting pond, penetrates vapour vapor extractor, first switch valve, second switch valve and flow valve, the final stage exhaust outlet of steam turbine is connected with condenser by pipeline, and first switch valve is arranged on the pipeline between steam turbine last stage exhaust outlet and condenser；Condenser is connected with jetting pond by pipeline；Penetrating vapour vapor extractor includes mixing chamber, and in mixing chamber and the orthogonal setting of mouthpiece first jet and second nozzle, first jet is connected with least one of steam turbine non-final stage exhaust outlet by pipeline, second nozzle is connected with the final stage exhaust outlet of steam turbine by pipeline, second switch valve is arranged on the pipeline between second nozzle and steam turbine last stage exhaust outlet, and flow valve is arranged on the pipeline between first jet and the non-final stage exhaust outlet of steam turbine.
Description
Technical field
The present invention relates to generating equipment technical field, more particularly to a kind of pure condensate generating set steam discharge processing unit.
Background technology
The thermal efficiency of steam power plant of China is general all relatively low, is 35%~40% or so, but, from the point of view of individual equipment, pot
The efficiency of stove, steam turbine and the several capital equipments of generator is all more than 90%.Inventor is by each link heat waste in power plant
The analysis of mistake finds that the main cause for causing steam power plant less efficient is the steam discharge loss of steam turbine.
The enthalpy of turbine discharge is and higher than the enthalpy of condensate than that can utilize the low 120~180KJ/kg of enthalpy of steam
2430KJ/kg.In the prior art, the steam discharge of steam turbine is condensed into water by pure condensate generating set using condenser, is not only wasted
The heat of 2430KJ/kg, and 1 ton of steam of condensation will also consume 2.2 degree of electricity.Therefore, as long as by the enthalpy of turbine discharge
120~180KJ/kg is improved, turbine discharge can be utilized, and can also save the consumption for condensing turbine discharge.
The enthalpy of steam discharge is improved it is necessary to improve the pressure of steam discharge, but, the pressure that steam discharge is improved in steam turbine will
Cause the reduction of steam turbine vacuum degree, cause steam turbine more consumption and the reductions of efficiency, cause the heat in steam discharge cannot be by
Recycle, the thermal efficiency of steam power plant is difficult to improve.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of pure condensate generating set steam discharge processing unit, to realize arranging steam turbine
The recycling of vapour heat, improves the thermal efficiency of steam power plant.
The embodiment of the invention provides a kind of pure condensate generating set steam discharge processing unit, including steam turbine, condenser, jetting
Pond, vapour vapor extractor, first switch valve, second switch valve and flow valve are penetrated, wherein：
The final stage exhaust outlet of the steam turbine is connected with the condenser by pipeline, and the first switch valve is arranged on vapour
On pipeline between turbine final stage exhaust outlet and condenser；
The condenser is connected with the jetting pond by pipeline；
The vapour vapor extractor of penetrating including mixing chamber, and in mixing chamber and the first jet of the orthogonal setting of mouthpiece and the
Two nozzles, the mixing chamber has user's steam supply mouthful, and the first jet leads to at least one non-final stage exhaust outlet of steam turbine
Piping is connected, and the second nozzle is connected with the final stage exhaust outlet of steam turbine by pipeline, and the second switch valve is arranged on
On pipeline between the second nozzle and steam turbine last stage exhaust outlet, it is non-with steam turbine that flow valve is arranged on the first jet
On pipeline between final stage exhaust outlet.
Preferably, the first jet is connected with each non-final stage exhaust outlet of steam turbine by pipeline, and multiple streams
Amount valve is respectively arranged on the pipeline between the first jet and each non-final stage exhaust outlet of steam turbine.
Preferably, only have one in the multiple flow valve for opening, or the multiple flow valve is closing
State.
Preferably, aperture of the aperture of the first jet more than the second nozzle.
Specifically, the first switch valve includes stop valve, ball valve, gate valve, butterfly valve or diaphragm valve；The second switch
Valve includes stop valve, ball valve, gate valve, butterfly valve or diaphragm valve.
Specifically, the second switch valve includes stop valve, ball valve, gate valve, butterfly valve or diaphragm valve.
Specifically, the flow valve includes stop valve, gate valve, butterfly valve or diaphragm valve.
Preferably, the pure condensate generating set steam discharge processing unit also includes the first pressure being arranged in the steam turbine
Sensor, and the controller being connected with flow valve and the first pressure sensor, the controller are used for when in steam turbine
Pressure higher than setting first pressure threshold value when, reduce flow valve aperture.
Preferably, the pure condensate generating set steam discharge processing unit also includes the second pressure sensing being arranged in mixing chamber
Device, the controller is additionally operable to when second pressure threshold value of the pressure in the mixing chamber less than setting, increase flow valve
Aperture.
The controller is also connected with the multiple flow valve, for when the pressure in the mixing chamber is less than the of setting
During two pressure thresholds, the current flow valve opened is closed, and unlatching is arranged at the non-final stage exhaust outlet than current connection away from end
Flow valve between the non-final stage exhaust outlet and first jet of level exhaust outlet on pipeline；
Or when second pressure threshold value of the pressure in the mixing chamber higher than setting, close the current flow opened
Valve, and open the non-final stage exhaust outlet and first jet for being arranged at and final stage exhaust outlet being close to than the non-final stage exhaust outlet of current connection
Between flow valve on pipeline.
In the technical scheme of the embodiment of the present invention, penetrate vapour vapor extractor from the non-final stage exhaust outlet of steam turbine extract steam and from
First jet sprays, and forms high pressure steam flow, the steam discharge of injection steam turbine last stage exhaust outlet.Extracted from the non-final stage exhaust outlet of steam turbine
Steam pressure be higher than exhaust steam pressure, above-mentioned steam and steam discharge are mixed to form mixed vapour in mixing chamber, in mixing chamber
Mixed vapour boost in pressure to the pressure rating using steam, rear line heat supply, in addition, if user is to heat supply
Demand change, or generating set working condition changes, it is possible to use first switch valve, second switch valve and stream
Amount valve controls to penetrate the working condition of vapour vapor extractor and condenser, changes and in the prior art directly condenses the steam discharge of steam turbine
The steam discharge processing method of Cheng Shui, sufficiently make use of the heat of turbine discharge, improve the thermal efficiency of steam power plant.
Brief description of the drawings
Fig. 1 is the pure condensate generating set steam discharge processing device structure diagram of the embodiment of the present invention；
Fig. 2 is the pure condensate generating set steam discharge processing device structure diagram of another embodiment of the present invention；
Fig. 3 is embodiment of the present invention Flow-rate adjustment schematic diagram.
Reference：
1- steam turbines；
2- condensers；
3- jettings pond；
4- penetrates vapour vapor extractor；
5- first switch valves；
6- second switch valves；
7- flow valves；
41- mixing chambers；
42- first jets；
43- second nozzles；
8- controllers；
9- first pressure sensors；
10- second pressure sensors.
Specific embodiment
In order to realize the recycling to turbine discharge, the efficiency of steam power plant is improved.The embodiment of the invention provides one kind
Pure condensate generating set steam discharge processing unit.To make the object, technical solutions and advantages of the present invention clearer, by the following examples
The present invention is described in further detail.
As shown in figure 1, a kind of pure condensate generating set steam discharge processing unit is the embodiment of the invention provides, including steam turbine 1,
Condenser 2, jetting pond 3, vapour vapor extractor 4, first switch valve 5, second switch valve 6 and flow valve 7 are penetrated, wherein：
The final stage exhaust outlet of steam turbine 1 is connected with condenser 2 by pipeline, and first switch valve 5 is arranged on the final stage of steam turbine 1
On pipeline between exhaust outlet and condenser 2；
Condenser 2 is connected with jetting pond 3 by pipeline；
Vapour vapor extractor 4 is penetrated including mixing chamber 41, and in mixing chamber 41 and the orthogonal setting of mouthpiece first jet 42
With second nozzle 43, mixing chamber 41 has user's steam supply mouthful, at least one non-final stage exhaust outlet of first jet 42 and steam turbine 1
Connected by pipeline, second nozzle 43 is connected with the final stage exhaust outlet of steam turbine 1 by pipeline, second switch valve 6 is arranged on the
On pipeline between two nozzles 43 and the final stage exhaust outlet of steam turbine 1, flow valve 7 is arranged on first jet 42 and the non-end of steam turbine 1
On pipeline between level exhaust outlet.
By the said structure design using the embodiment of the present invention, pure condensate generating set steam discharge processing unit can be operated in
Three kinds of mode of operations, can sufficiently make use of the heat of the steam discharge of steam turbine 1, improve the thermal efficiency of steam power plant.Specifically：
In the first operational mode, penetrate vapour vapor extractor 4 to work, condenser 2 does not work, that is, close first switch valve 5, beat
Drive second switch valve 6 and flow valve 7.Penetrate vapour vapor extractor 4 and extract steam and from first jet 42 from the non-final stage exhaust outlet of steam turbine 1
Spray, form high pressure steam flow, the steam discharge of the final stage exhaust outlet of injection steam turbine 1, and sprayed from second nozzle 43 by the steam discharge of injection
Go out.The steam pressure extracted from the non-final stage exhaust outlet of steam turbine 1 is higher than exhaust steam pressure, and above-mentioned steam and steam discharge are in mixing chamber 41
In be mixed to form mixed vapour, in mixing chamber 41, the boost in pressure of mixed vapour to available steam pressure grade, afterwards
Discharged to user's heat supply from user's steam supply mouthful.
In a second mode of operation, penetrate vapour vapor extractor 4 and condenser 2 works simultaneously, that is, open first switch valve 5, open
Second switch valve 6 and flow valve 7.Now, vapour vapor extractor 4 is penetrated to extract steam from the non-final stage exhaust outlet of steam turbine 1 and sprayed from first
Mouth 42 sprays, formation high pressure steam flow, the steam discharge of the final stage exhaust outlet of injection steam turbine 1, and by the steam discharge of injection from second nozzle
43 spray.The steam pressure extracted from the non-final stage exhaust outlet of steam turbine 1 is higher than exhaust steam pressure, and above-mentioned steam and steam discharge are in mixing
Be mixed to form mixed vapour in room 41, in mixing chamber 41, the boost in pressure of mixed vapour to available steam pressure grade,
Discharged to user's heat supply from user's steam supply mouthful afterwards.Meanwhile, some steam discharge can be cooled down into condenser 2,
Reprocessed after condensing into cooling water.
In the third operational mode, penetrate vapour vapor extractor 4 not work, condenser 5 works, that is, open second switch valve 6, close
Close first switch valve 5 and flow valve 7.The final stage steam discharge of steam turbine 1 is cooled down into condenser 2, is condensed into after cooling water again
Treatment.
As shown in Fig. 2 in the technical scheme of another embodiment of the present invention, each of first jet 42 and steam turbine 1 are non-
Final stage exhaust outlet is connected by pipeline, and multiple flow valves 7 are respectively arranged at each non-end of first jet 42 and steam turbine 1
On pipeline between level exhaust outlet.
Can only have one in multiple flow valves 7 for opening, it is also possible to which multiple flow valves are closed mode.
In the present embodiment, can be according to user to evaporation capacity for engine and the demand of pressure of steam supply or actual according to steam turbine 1
Working condition, select the suitable steam to carry out injection by controlling the switch of flow valve 7, when injection need not be carried out, then
Multiple flow valves are closed mode.
Specifically, aperture of the aperture of first jet 42 more than second nozzle 43, penetrates vapour and draws gas process with more preferable realization.
The type of first switch valve 5 is not limited, can be any for stop valve, ball valve, gate valve, butterfly valve or diaphragm valve etc.
A kind of valve with switching function, equally, the type of second switch valve 6 is not also limited, can for stop valve, ball valve, gate valve,
Butterfly valve or diaphragm valve etc. any one there is the valve of switching function.
The type of flow valve 7 is not limited, and any one can be had for stop valve, gate valve, butterfly valve or diaphragm valve etc.
Adjust the valve of traffic engineering capability.
In above-described embodiment, the species to switch valve and flow valve is not specifically limited, can comprehensive actual conditions selection
Suitable valve member.
As shown in figure 3, in another preferred embodiment of the present invention, pure condensate generating set steam discharge processing unit may be used also
With including the first pressure sensor 9 being arranged in steam turbine 1, and the control being connected with flow valve 7 and first pressure sensor 9
Device processed 8, controller 8 is used to, when first pressure threshold value of the pressure in steam turbine 1 higher than setting, reduce the aperture of flow valve 7.
More excellent, pure condensate generating set steam discharge processing unit also includes the second pressure sensor being arranged in mixing chamber 41
10, controller 8 is additionally operable to, when second pressure threshold value of the pressure in mixing chamber 41 less than setting, increase the aperture of flow valve.
In order to preferably realize automatically controlling, controller 8 is also connected with multiple flow valves 7, for when in mixing chamber 41
Pressure less than setting second pressure threshold value when, close the current flow valve opened, and open be arranged at it is more non-than current connection
Final stage exhaust outlet is away from the flow valve on pipeline between the non-final stage exhaust outlet and first jet 41 of final stage exhaust outlet；
Or when second pressure threshold value of the pressure in the mixing chamber 41 higher than setting, close the current flow opened
Valve, and open the non-final stage exhaust outlet and first jet for being arranged at and final stage exhaust outlet being close to than the non-final stage exhaust outlet of current connection
Flow valve between 41 on pipeline.
Automatically adjusting for flow valve 7 is realized by controller, the vacuum that can be allowed in steam turbine 1 is maintained at given threshold
It is interior, improve the stability of generating set work, it is also possible to allow the pressure of mixed vapour in mixing chamber 41 to meet steam supply demand, improve
It is the quality of user's steam supply.
Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention
God and scope.So, if these modifications of the invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (10)
1. a kind of pure condensate generating set steam discharge processing unit, it is characterised in that including steam turbine, condenser, jetting pond, penetrate vapour and take out
Vapour device, first switch valve, second switch valve and flow valve, wherein：
The final stage exhaust outlet of the steam turbine is connected with the condenser by pipeline, and the first switch valve is arranged on steam turbine
On pipeline between final stage exhaust outlet and condenser；
The condenser is connected with the jetting pond by pipeline；
The vapour vapor extractor of penetrating including mixing chamber, and in mixing chamber and the first jet of the orthogonal setting of mouthpiece and the second spray
Mouth, the mixing chamber has user's steam supply mouthful, and the first jet passes through pipe with least one non-final stage exhaust outlet of steam turbine
Road is connected, and the second nozzle is connected with the final stage exhaust outlet of steam turbine by pipeline, and the second switch valve is arranged on described
On pipeline between second nozzle and steam turbine last stage exhaust outlet, flow valve is arranged on the first jet and the non-final stage of steam turbine
On pipeline between exhaust outlet.
2. pure condensate generating set steam discharge processing unit as claimed in claim 1, it is characterised in that the first jet and steamer
The non-final stage exhaust outlet of each of machine is connected by pipeline, and multiple flow valves are respectively arranged at the first jet and steam turbine
Each non-final stage exhaust outlet between pipeline on.
3. pure condensate generating set steam discharge processing unit as claimed in claim 2, it is characterised in that in the multiple flow valve only
There is one for opening, or the multiple flow valve is closed mode.
4. pure condensate generating set steam discharge processing unit as claimed in claim 1, it is characterised in that the aperture of the first jet
More than the aperture of the second nozzle.
5. pure condensate generating set steam discharge processing unit as claimed in claim 1, it is characterised in that the first switch valve includes
Stop valve, ball valve, gate valve, butterfly valve or diaphragm valve.
6. pure condensate generating set steam discharge processing unit as claimed in claim 1, it is characterised in that the second switch valve includes
Stop valve, ball valve, gate valve, butterfly valve or diaphragm valve.
7. pure condensate generating set steam discharge processing unit as claimed in claim 1, it is characterised in that the flow valve includes cut-off
Valve, gate valve, butterfly valve or diaphragm valve.
8. the pure condensate generating set steam discharge processing unit as described in any one of claim 1~7, it is characterised in that also including setting
The first pressure sensor being placed in the steam turbine, and the control being connected with flow valve and the first pressure sensor
Device, the controller is used to, when first pressure threshold value of the pressure in steam turbine higher than setting, reduce the aperture of flow valve.
9. pure condensate generating set steam discharge processing unit as claimed in claim 8, it is characterised in that also including being arranged at mixing chamber
Interior second pressure sensor, the controller is additionally operable to when second pressure threshold value of the pressure in the mixing chamber less than setting
When, increase the aperture of flow valve.
10. pure condensate generating set steam discharge processing unit as claimed in claim 8, it is characterised in that the controller also with institute
Multiple flow valve connections are stated, for when the pressure in the mixing chamber is less than the second pressure threshold value for setting, closing currently to be opened
The flow valve for opening, and open the non-final stage exhaust outlet that is arranged at non-final stage exhaust outlet than current connection away from final stage exhaust outlet with
Flow valve between first jet on pipeline；
Or when second pressure threshold value of the pressure in the mixing chamber higher than setting, the current flow valve opened is closed, and
Unlatching is arranged at the non-final stage exhaust outlet than current connection between the non-final stage exhaust outlet and first jet of final stage exhaust outlet
Flow valve on pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611065499.XA CN106761975B (en) | 2016-11-28 | 2016-11-28 | A kind of pure condensate generating set steam discharge processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611065499.XA CN106761975B (en) | 2016-11-28 | 2016-11-28 | A kind of pure condensate generating set steam discharge processing unit |
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| Publication Number | Publication Date |
|---|---|
| CN106761975A true CN106761975A (en) | 2017-05-31 |
| CN106761975B CN106761975B (en) | 2018-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611065499.XA Active CN106761975B (en) | 2016-11-28 | 2016-11-28 | A kind of pure condensate generating set steam discharge processing unit |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5478368A (en) * | 1977-12-05 | 1979-06-22 | Mitsui Eng & Shipbuild Co Ltd | Method and apparatus for recovering energy of blast furnace exhaust gas |
| JPS59208106A (en) * | 1983-05-13 | 1984-11-26 | Toshiba Corp | Exhaust chamber temperature control device of steam turbine |
| JPH04281193A (en) * | 1991-03-08 | 1992-10-06 | Toshiba Corp | Upper spray system of condenser |
| CN101936196A (en) * | 2009-06-29 | 2011-01-05 | 沈阳飞鸿达节能设备技术开发有限公司 | Multi-source steam pressure matcher |
| CN204007198U (en) * | 2014-07-17 | 2014-12-10 | 佛山市南海绿电再生能源有限公司 | A kind of water-jet exhaust device for condenser |
| CN104237307A (en) * | 2014-09-11 | 2014-12-24 | 本钢板材股份有限公司 | Method and device for measuring saturated steam dryness through steam ejecting and extraction |
-
2016
- 2016-11-28 CN CN201611065499.XA patent/CN106761975B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5478368A (en) * | 1977-12-05 | 1979-06-22 | Mitsui Eng & Shipbuild Co Ltd | Method and apparatus for recovering energy of blast furnace exhaust gas |
| JPS59208106A (en) * | 1983-05-13 | 1984-11-26 | Toshiba Corp | Exhaust chamber temperature control device of steam turbine |
| JPH04281193A (en) * | 1991-03-08 | 1992-10-06 | Toshiba Corp | Upper spray system of condenser |
| CN101936196A (en) * | 2009-06-29 | 2011-01-05 | 沈阳飞鸿达节能设备技术开发有限公司 | Multi-source steam pressure matcher |
| CN204007198U (en) * | 2014-07-17 | 2014-12-10 | 佛山市南海绿电再生能源有限公司 | A kind of water-jet exhaust device for condenser |
| CN104237307A (en) * | 2014-09-11 | 2014-12-24 | 本钢板材股份有限公司 | Method and device for measuring saturated steam dryness through steam ejecting and extraction |
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| Publication number | Publication date |
|---|---|
| CN106761975B (en) | 2018-09-25 |
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Address after: 065001 Langfang District, Hebei economic and Technological Development Zone, Hua Xiang Road, Xinyuan Road, new Austrian Science and Technology Park, South Block B Patentee after: ENN FANNENG NETWORK TECHNOLOGY CO.,LTD. Address before: 065001 Langfang District, Hebei economic and Technological Development Zone, Hua Xiang Road, Xinyuan Road, new Austrian Science and Technology Park, South Block B Patentee before: ENN UBIQUITOUS ENERGY NETWORK TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20190624 Address after: 412007 No. 13 Taishan Road, Tianyuan District, Zhuzhou City, Hunan Province Patentee after: ZHUZHOU ENN GAS Co.,Ltd. Address before: 065001 Langfang District, Hebei economic and Technological Development Zone, Hua Xiang Road, Xinyuan Road, new Austrian Science and Technology Park, South Block B Patentee before: ENN FANNENG NETWORK TECHNOLOGY CO.,LTD. |