CN110056403A - It is connected with the steam extraction back pressure heating type steam turbine and application method of Analysis of Exhaust Steam Recovering System - Google Patents
It is connected with the steam extraction back pressure heating type steam turbine and application method of Analysis of Exhaust Steam Recovering System Download PDFInfo
- Publication number
- CN110056403A CN110056403A CN201910354704.1A CN201910354704A CN110056403A CN 110056403 A CN110056403 A CN 110056403A CN 201910354704 A CN201910354704 A CN 201910354704A CN 110056403 A CN110056403 A CN 110056403A
- Authority
- CN
- China
- Prior art keywords
- steam
- back pressure
- extraction back
- valve
- turbine
- 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.)
- Granted
Links
Classifications
-
- 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
- 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
- F01K17/06—Returning energy of steam, in exchanged form, to process, e.g. use of exhaust steam for drying solid fuel or plant
-
- 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
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
- F01K7/38—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
-
- 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
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
- F01K7/44—Use of steam for feed-water heating and another purpose
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Control Of Turbines (AREA)
Abstract
The invention discloses a kind of steam extraction back pressure heating type steam turbine for being connected with Analysis of Exhaust Steam Recovering System and application method, belong to heating season and steam extraction back pressure heating type steam turbine technology field that non-heating season section can all be run.A kind of steam extraction back pressure heating type steam turbine being connected with Analysis of Exhaust Steam Recovering System of the invention, including extraction back pressure turbine, it further include Analysis of Exhaust Steam Recovering System, the Analysis of Exhaust Steam Recovering System includes heat exchanger, the steam drain of extraction back pressure turbine is connected to by exhaust line with the air intake of heat exchanger, it is equipped with the first valve on exhaust line, heating steam supply pipeline is communicated on the exhaust line of the first valve downstream side, heating steam supply pipe road is equipped with the second valve.When using the present invention, no matter in heating season or non-heating season section, extraction back pressure turbine can be operated normally, and met industrial steam supply demand, be can be improved the utilization rate of extraction back pressure turbine.
Description
Technical field
The present invention relates to a kind of steam extraction back pressure heating type steam turbine for being connected with Analysis of Exhaust Steam Recovering System and application methods, belong to
The steam extraction back pressure heating type steam turbine technology field that heating season and non-heating season section can all be run.
Background technique
Steam extraction back pressure heating type steam turbine refers to an extraction back pressure turbine, and factory steam is gone in steam extraction, row
Vapour goes to heating vapour.
In heating season, which has industrial steam supply thermic load and heating steam supply thermic load simultaneously,
Extraction back pressure turbine can operate normally.
Since heating has seasonality, in non-heating season section, although industrial steam supply thermic load still remains, heating steam supply
The demand of thermic load becomes zero, and extraction back pressure turbine is just without steam discharge, so being unable to run, leads to back pressure extraction vapour
Turbine can only be shut down for a long time in non-heating season section, be cannot achieve industrial steam supply demand, caused the waste of device resource.
Summary of the invention
Goal of the invention of the invention is: in view of the above problems, providing a kind of Analysis of Exhaust Steam Recovering System that is connected with
Steam extraction back pressure heating type steam turbine, when using the present invention, in non-heating season section, extraction back pressure turbine also can be transported normally
Row meets industrial steam supply demand, can be improved the utilization rate of extraction back pressure turbine.
The technical solution adopted by the invention is as follows:
A kind of steam extraction back pressure heating type steam turbine being connected with Analysis of Exhaust Steam Recovering System, including extraction back pressure turbine further include
Analysis of Exhaust Steam Recovering System, the Analysis of Exhaust Steam Recovering System include heat exchanger, and the steam drain of extraction back pressure turbine passes through exhaust line
It is connected to the air intake of heat exchanger, the first valve is equipped on exhaust line, connected on the exhaust line of the first valve downstream side
It is connected with heating steam supply pipeline, heating steam supply pipe road is equipped with the second valve.
When using the present invention, make extraction back pressure turbine is communicated with main steam lead road, back pressure extraction steamer
The extraction steam for factories mouth of machine is communicated with extraction steam for factories pipeline, and extraction back pressure turbine has the industry for adjusting extraction steam for factories amount
Extraction regulation part, makes the high-temperature steam from boiler enter extraction back pressure turbine by main steam lead road, and industry is taken out
Vapour is from extraction steam for factories Pipeline transport to the factory user for needing high-temperature steam；In heating season, the first valve is closed, opens the
Two valves, the steam discharge of extraction back pressure turbine enter heating steam supply pipeline and use for heating, and extraction back pressure turbine can
It operates normally；In non-heating season section, the first valve is opened, closes the second valve, the steam discharge of extraction back pressure turbine enters
The heat exchanger of Analysis of Exhaust Steam Recovering System carries out heat exchange, and extraction back pressure turbine can also operate normally.Therefore, no matter in heating
When season or non-heating season section, extraction back pressure turbine can be operated normally, and meet industrial steam supply demand, this provides for improved
The utilization rate of extraction back pressure turbine.In non-heating season section, the steam discharge into heat exchanger and the water at low temperature into heat exchanger
After the water at low temperature hereinafter referred to as import water at low temperature of heat exchanger (this enter) carries out heat exchange, water at low temperature becomes after high-temperature water from heat exchange
Device outflow (this hereinafter referred to as exports high-temperature water from the high-temperature water that heat exchanger flows out)；Meanwhile steam discharge carries out hot friendship in heat exchanger
Become after changing steam discharge condensed water (or referred to as saturated water), outlet high-temperature water and steam discharge condensed water can transport to heat regenerative system, pot
Furnace water supply system or other places in need can effectively utilize the thermal energy of steam discharge, energy saving.
Preferably, first valve, the second valve are all shut-off valve.
It is alternative, it is communicated with overflow passage on the exhaust line in the first shut-off valve downstream side, connects on overflow passage
It is connected with third valve.The purpose of the design is: just having come into operation in Analysis of Exhaust Steam Recovering System or extraction back pressure turbine goes out
When existing variable working condition, balance or flat is had not yet been reached in the heat exchange of the steam discharge of extraction back pressure turbine and the water at low temperature into heat exchanger
Weighing apparatus is destroyed；At this point, third valve can be adjusted by opening, under the overflow effect of overflow passage, have adjusted into heat exchanger
Interior displacement reaches equilibrium-like so that progressivelying reach equilibrium state into the water at low temperature of heat exchanger and the heat exchange of steam discharge
After state, third valve, overflow passage no longer overflow are closed.
Preferably, the third valve is regulating valve.
Alternative, the heat exchanger is surface-type heat exchanger, direct contact heat exchanger or low-pressure heater.
Alternative, the water inlet of the heat exchanger is communicated with inlet pipeline, and the water outlet of heat exchanger is communicated with water outlet
The vapour-liquid mouth that goes out of pipeline, heat exchanger is connected with out steam discharge condensate line, and steam discharge condensate line is connected on outlet pipeline out.
So that steam discharge condensed water and outlet high-temperature water confluence, are delivered to the place of needs jointly.The water at low temperature entered from inlet pipeline can
To be the low-temperature water sources such as steam extraction condensed water.If the hydraulic pressure of steam discharge condensed water is greater than the hydraulic pressure of outlet high-temperature water, steam discharge is solidifying
Outlet high-temperature water can be flowed to by bearing water；But it if the hydraulic pressure of steam discharge condensed water is less than the hydraulic pressure of outlet high-temperature water, arranges
Vapour condensed water can not be flowed to outlet high-temperature water；Therefore preferably, steam discharge condensate pipe road is equipped with drainage pump out, make
The hydraulic pressure regardless of steam discharge condensed water is obtained compared with the hydraulic pressure of outlet high-temperature water, can realize is flowed to out steam discharge condensed water
The purpose of mouth high-temperature water.
A kind of application method for the steam extraction back pressure heating type steam turbine being connected with Analysis of Exhaust Steam Recovering System, in heating season,
The first valve is closed, the second valve is opened, the steam discharge of extraction back pressure turbine enters heating steam supply pipeline and uses for heating；?
When non-heating season section, the first valve is opened, closes the second valve, the steam discharge of extraction back pressure turbine enters heat exchanger and carries out heat
Exchange.
Alternative, in non-heating season section, the practical displacement of extraction back pressure turbine is design displacement
10%-20%.Under the premise of guaranteeing that extraction back pressure turbine operates normally, the dosage of import water at low temperature can be effectively reduced.
Its principle is: the displacement of extraction back pressure turbine needs to condense into water completely, needs the import water at low temperature of corresponding amount.
Therefore, if displacement is bigger, the import water at low temperature needed is also more.And in practical engineering application, might not exist big
The low-temperature water source that can be heated is measured, therefore, in non-heating season section, can guarantee extraction back pressure turbine safe operation
Under the premise of, displacement is dropped into a very low state (for example, the practical displacement of extraction back pressure turbine is design steam discharge
The 10%-20% of amount), it is to have very much engineering application value, with stronger engineer application meaning.
Alternative, in non-heating season section, the exhaust steam pressure of extraction back pressure turbine is slightly above ambient atmosphere pressure.
The purpose of the design is: neither will cause the cylinder negative pressure sucking air of extraction back pressure turbine, and can effectively increase
Steam discharge specific volume, to increase safety of the last stage vane of steam turbine of extraction back pressure turbine under small displacement state.
Preferably, in non-heating season section, the exhaust steam pressure of extraction back pressure turbine is 0.11MPa-0.15MPa.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
A kind of steam extraction back pressure heating type steam turbine for being connected with Analysis of Exhaust Steam Recovering System of the invention and application method, it is ingenious in design,
Equipment and the energy can be more adequately utilized, has stronger engineering application value high；When using the present invention, no matter in heating season
Or when non-heating season section, extraction back pressure turbine can be operated normally, and meet industrial steam supply demand；In heating season,
The steam discharge of extraction back pressure turbine enters heating steam supply pipeline and uses for heating；In non-heating season section, back pressure extraction vapour
The steam discharge of turbine enters heat exchanger and carries out heat exchange；This just improves the utilization rate of extraction back pressure turbine.
Detailed description of the invention
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Fig. 1 is design diagram of the invention, wherein the part in double dot dash line box indicates Analysis of Exhaust Steam Recovering System, double
Part in chain-dotted line box indicates steam extraction back pressure heating type steam turbine.
Marked in the figure: 1- extraction back pressure turbine, 2- heat exchanger, 3- main steam lead road, 4- extraction steam for factories pipeline,
41- extraction steam for factories regulating part, 5- exhaust line, the first valve of 51-, 6- heating steam supply pipeline, the second valve of 61-, 7- overflow pipe
Road, 71- third valve, 81- inlet pipeline, 82- outlet pipeline, 9- go out steam discharge condensate line, 91- drainage pump.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification unless specifically stated can be equivalent or with similar purpose by other
Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
?.
Embodiment one
As shown in Fig. 1, a kind of steam extraction back pressure heating type steam turbine being connected with Analysis of Exhaust Steam Recovering System of the present embodiment includes steam extraction
Back pressure turbine 1 further includes Analysis of Exhaust Steam Recovering System, and the Analysis of Exhaust Steam Recovering System includes heat exchanger 2, extraction back pressure turbine
1 steam drain is connected to by exhaust line 5 with the air intake of heat exchanger 2, and the first valve 51 is equipped on exhaust line 5, the
It is communicated with heating steam supply pipeline 6 on the exhaust line 5 of one valve, 51 upstream side, is equipped with the second valve on heating steam supply pipeline 6
61。
When using the present invention, make extraction back pressure turbine 1 is communicated with main steam lead road 3, back pressure extraction vapour
The extraction steam for factories mouth of turbine 1 is communicated with extraction steam for factories pipeline 4, and extraction back pressure turbine 1 has for adjusting extraction steam for factories amount
Extraction steam for factories regulating part 41(extraction steam for factories regulating part 41 can be extraction steam for factories regulating valve or extraction steam for factories rotating barrier etc.
Extraction steam for factories regulating member), so that the high-temperature steam from boiler is entered extraction back pressure turbine by main steam lead road 3
1.In heating season, the first valve 51 is closed, opens the second valve 61；It is reasonable to what is needed that extraction steam for factories is adjusted into valve regulation
Aperture, extracts a part of steam of extraction back pressure turbine 1 out, this part of extraction steam for factories is delivered to from extraction steam for factories pipeline 4
Need the factory user of high-temperature steam；And the steam discharge of extraction back pressure turbine 1 enters heating steam supply pipeline 6 and uses for heating.
In non-heating season section, the first valve 51 is opened, closes the second valve 61；Extraction steam for factories regulating valve is adjusted to minimum aperture
(so that steam extraction amount maximum) extracts most steam of extraction back pressure turbine 1 out, this most part extraction steam for factories from
Extraction steam for factories pipeline 4 is delivered to the factory user for needing high-temperature steam；And remaining fraction steam is in vapour back pressure turbine 1
Middle continuation expansion work, and in slightly above ambient atmosphere pressure, (such as exhaust steam pressure is 0.11MPa- by exhaust steam pressure adjusting
0.15MPa), the heat exchanger 2 that the steam discharge of extraction back pressure turbine 1 enters Analysis of Exhaust Steam Recovering System carries out heat exchange.No matter adopting
When warm season section or non-heating season section, extraction back pressure turbine can be operated normally, and meet industrial steam supply demand, this is just improved
The utilization rate of extraction back pressure turbine 1.In non-heating season section, the steam discharge into heat exchanger 2 is low with entrance heat exchanger 2
After warm water (this enters the water at low temperature hereinafter referred to as import water at low temperature of heat exchanger 2) carries out heat exchange, after water at low temperature becomes high-temperature water
From the outflow of heat exchanger 2 (this hereinafter referred to as exports high-temperature water from the high-temperature water that heat exchanger 2 flows out)；Meanwhile steam discharge is in heat exchanger 2
Become steam discharge condensed water (or referred to as saturated water) after carrying out heat exchange, outlet high-temperature water and steam discharge condensed water can transport to backheat
System, the feed water system of boiler or other places in need can effectively utilize the thermal energy of steam discharge, energy saving.
Preferably, in another embodiment, first valve 51, the second valve 61 are all shut-off valve.
It is alternative, in another embodiment, overflow is communicated on the exhaust line 5 in 51 downstream side of the first shut-off valve
Pipeline 7 is communicated with third valve 71 on overflow passage 7.The purpose of the design is: just come into operation in Analysis of Exhaust Steam Recovering System or
When there is variable working condition in person's extraction back pressure turbine 1, the steam discharge of extraction back pressure turbine 1 and the water at low temperature for entering heat exchanger 2
Heat exchange have not yet been reached balance or balance be destroyed；At this point, third valve 71 can be adjusted by opening, in overflow passage 7
It under overflow effect, has adjusted into the displacement in heat exchanger 2, so that being handed over into the water at low temperature of heat exchanger 2 and the heat of steam discharge
It changes and progressivelyes reach equilibrium state, after reaching equilibrium state, close third valve 71, the no longer overflow of overflow passage 7.
Preferably, in another embodiment, the third valve 71 is regulating valve.
For shut-off valve compared with regulating valve, shut-off valve is mainly used for on-off medium, and also can be used certainly can also be used to adjust Jie
Mass flow amount, but degree of regulation is poor, is not easy to adjust；Regulating valve is mainly used for adjusting rate-of flow, and degree of regulation is high, adjusting side
Just, it may have the function of on-off medium；Regulating valve is than shut-off valve valuableness.Therefore according to the demand of actual use, as optimal
Preferred design, the first valve 51, the second valve 61 are all shut-off valve, and third valve 71 is regulating valve.Certainly, the first valve 51,
Second valve 61 can also all be regulating valve, but this has resulted in the increase of cost, also without this necessity；Third valve 71
May be shut-off valve, but this resulted in being difficult to accurate flow adjustment as a result, using undesirable.Therefore, first
Valve 51, the second valve 61 are all shut-off valve, and third valve 71 is that regulating valve is optimal design.
Alternative, in another embodiment, the heat exchanger 2 is surface-type heat exchanger, direct contact heat exchanger or low
Press heater.
Alternative, in another embodiment, the water inlet of the heat exchanger 2 is communicated with inlet pipeline 81, heat exchanger 2
Water outlet be communicated with outlet pipeline 82, the vapour-liquid mouth that goes out of heat exchanger 2 is connected with out steam discharge condensate line 9, and steam discharge condenses out
Water lines 9 are connected on outlet pipeline 82.So that steam discharge condensed water and outlet high-temperature water confluence, are delivered to the ground of needs jointly
Side.The water at low temperature entered from inlet pipeline 81 can be the low-temperature water sources such as steam extraction condensed water.If the hydraulic pressure of steam discharge condensed water is big
In the hydraulic pressure of outlet high-temperature water, then steam discharge condensed water can be flowed to outlet high-temperature water；But the if water of steam discharge condensed water
Pressure is less than the hydraulic pressure of outlet high-temperature water, then steam discharge condensed water can not be flowed to outlet high-temperature water；Therefore preferably, going out to arrange
Drainage pump 91 is equipped on vapour condensate line 9, so that no matter the hydraulic pressure of steam discharge condensed water is compared with the hydraulic pressure of outlet high-temperature water
How, it can realize the purpose for making steam discharge condensed water be flowed to outlet high-temperature water.Heat exchanger 2 is that surface-type heat exchanger or low pressure add
When hot device, the design of above-mentioned drainage pump 91 is preferably combined；When heat exchanger 2 is direct contact heat exchanger, drainage pump 91 is not combined
Design.
Embodiment two
In design basis based on embodiment one, as shown in Fig. 1, a kind of pumping being connected with Analysis of Exhaust Steam Recovering System of the present embodiment
The application method of vapour back pressure heating type steam turbine closes the first valve 51 in heating season, opens the second valve 61, steam extraction
The steam discharge of back pressure turbine 1 enters heating steam supply pipeline 6 and uses for heating；In non-heating season section, the first valve 51 is opened,
The second valve 61 is closed, the steam discharge of extraction back pressure turbine 1 enters heat exchanger 2 and carries out heat exchange.Detailed application method is asked
Referring to embodiment one.
It is alternative, in another embodiment, in non-heating season section, the practical steam discharge of extraction back pressure turbine 1
Amount is the 10%-20% of design displacement.Under the premise of guaranteeing that extraction back pressure turbine 1 operates normally, it can effectively reduce
The dosage of import water at low temperature.Its principle is: the displacement of extraction back pressure turbine 1 needs to condense into water completely, needs
The import water at low temperature of corresponding amount.Therefore, if displacement is bigger, the import water at low temperature needed is also more.And Practical Project is answered
In, therefore might not have the low-temperature water source that can be largely heated in non-heating season section, can guarantee steam extraction
Under the premise of back pressure turbine 1 is safely operated, displacement is dropped into a very low state, such as the extraction regulation by adjusting
The aperture of valve adjusts the purpose of displacement to realize, the practical displacement of extraction back pressure turbine 1 is made to design displacement
10%-20%, this is that have very much engineering application value, with stronger engineer application meaning.
It is alternative, in another embodiment, in non-heating season section, the exhaust steam pressure of extraction back pressure turbine 1
Slightly above ambient atmosphere pressure.The purpose of the design is: the cylinder negative pressure sucking that neither will cause extraction back pressure turbine is empty
Gas, and can effectively increase steam discharge specific volume, to increase the last stage vane of steam turbine of extraction back pressure turbine in small displacement
Safety under state.
Preferably, in another embodiment, in non-heating season section, the exhaust steam pressure of extraction back pressure turbine 1 is
0.11MPa-0.15MPa。
In conclusion using a kind of steam extraction back pressure heating type steam turbine for being connected with Analysis of Exhaust Steam Recovering System of the invention and making
It is ingenious in design with method, equipment and the energy can be more adequately utilized, has stronger engineering application value high；Using the present invention
When, no matter in heating season or non-heating season section, extraction back pressure turbine can be operated normally, and meet industrial steam supply need
It asks；In heating season, the steam discharge of extraction back pressure turbine enters heating steam supply pipeline and uses for heating；In non-heating season section
When, the steam discharge of extraction back pressure turbine enters heat exchanger and carries out heat exchange；This just improves the utilization of extraction back pressure turbine
Rate.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (10)
1. a kind of steam extraction back pressure heating type steam turbine for being connected with Analysis of Exhaust Steam Recovering System, including extraction back pressure turbine (1),
It is characterized in that: further including Analysis of Exhaust Steam Recovering System, the Analysis of Exhaust Steam Recovering System includes heat exchanger (2), extraction back pressure turbine (1)
Steam drain be connected to the air intake of heat exchanger (2) by exhaust line (5), exhaust line is equipped with the first valve on (5)
(51), heating steam supply pipeline (6), heating steam supply pipeline (6) are communicated on the exhaust line (5) of the first valve (51) upstream side
On be equipped with the second valve (61).
2. a kind of steam extraction back pressure heating type steam turbine for being connected with Analysis of Exhaust Steam Recovering System as described in claim 1, feature exist
In: first valve (51), the second valve (61) they are all shut-off valve.
3. a kind of steam extraction back pressure heating type steam turbine for being connected with Analysis of Exhaust Steam Recovering System as described in claim 1, feature exist
In: it is communicated with overflow passage (7) on the exhaust line (5) in the first shut-off valve (51) downstream side, overflow passage is communicated on (7)
Third valve (71).
4. a kind of steam extraction back pressure heating type steam turbine for being connected with Analysis of Exhaust Steam Recovering System as claimed in claim 3, feature exist
In: the third valve (71) is regulating valve.
5. a kind of steam extraction back pressure heating type steam turbine for being connected with Analysis of Exhaust Steam Recovering System as described in claim 1, feature exist
In: the heat exchanger (2) is surface-type heat exchanger, direct contact heat exchanger or low-pressure heater.
6. a kind of steam extraction back pressure heating type steam turbine for being connected with Analysis of Exhaust Steam Recovering System as described in claim 1, feature exist
In: the water inlet of the heat exchanger (2) is communicated with inlet pipeline (81), and the water outlet of heat exchanger (2) is communicated with outlet pipeline
(82), the vapour-liquid mouth that goes out of heat exchanger (2) is connected with out steam discharge condensate line (9), and steam discharge condensate line (9) is connected to out out
In water lines (82).
7. a kind of steam extraction back pressure heating type steam turbine for being connected with Analysis of Exhaust Steam Recovering System as claimed in claim 6, feature exist
In: go out on steam discharge condensate line (9) and is equipped with drainage pump (91).
8. a kind of steam extraction back pressure heating type steam turbine for being connected with Analysis of Exhaust Steam Recovering System as claimed in any one of claims 1 to 6
Application method, it is characterised in that:
It in heating season, closes the first valve (51), opens the second valve (61), the steam discharge of extraction back pressure turbine (1)
It is used into heating steam supply pipeline (6) for heating；
It in non-heating season section, opens the first valve (51), closes the second valve (61), the row of extraction back pressure turbine (1)
Vapour enters heat exchanger (2) and carries out heat exchange.
9. a kind of user for the steam extraction back pressure heating type steam turbine for being connected with Analysis of Exhaust Steam Recovering System as claimed in claim 8
Method, it is characterised in that: in non-heating season section, the practical displacement of extraction back pressure turbine (1) is design displacement
10%-20%。
10. a kind of user for the steam extraction back pressure heating type steam turbine for being connected with Analysis of Exhaust Steam Recovering System as claimed in claim 8
Method, it is characterised in that: in non-heating season section, the exhaust steam pressure of extraction back pressure turbine (1) is slightly above ambient atmosphere pressure；Make
To be preferred, in non-heating season section, the exhaust steam pressure of extraction back pressure turbine (1) is 0.11MPa-0.15MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354704.1A CN110056403B (en) | 2019-04-29 | 2019-04-29 | Extraction back pressure heating type steam turbine connected with exhaust steam recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354704.1A CN110056403B (en) | 2019-04-29 | 2019-04-29 | Extraction back pressure heating type steam turbine connected with exhaust steam recovery system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110056403A true CN110056403A (en) | 2019-07-26 |
| CN110056403B CN110056403B (en) | 2021-07-20 |
Family
ID=67321648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910354704.1A Active CN110056403B (en) | 2019-04-29 | 2019-04-29 | Extraction back pressure heating type steam turbine connected with exhaust steam recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110056403B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379604A (en) * | 2020-02-24 | 2020-07-07 | 东方电气集团东方汽轮机有限公司 | Multistage heat supply back pressure type steam turbine, thermodynamic system and heat supply method thereof |
| CN112145244A (en) * | 2020-09-22 | 2020-12-29 | 西安热工研究院有限公司 | System and method for improving water supply temperature and steam supply capacity of coal-fired power generating unit |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016416A (en) * | 2016-05-23 | 2016-10-12 | 华北电力大学 | Boiler smoke and steam turbine exhaust coupled high-back-pressure combined heat and power generation system |
| CN206458511U (en) * | 2017-02-16 | 2017-09-01 | 山西漳泽电力股份有限公司电力技术研究中心 | A kind of double mode therrmodynamic system of back pressure pure condensate and exhaust steam residual heat utilize system |
| CN107269331A (en) * | 2017-04-28 | 2017-10-20 | 华电电力科学研究院 | Realize cascaded utilization of energy and participate in the heat supply steam bleeding system and method for depth peak regulation |
| CN107542506A (en) * | 2017-08-23 | 2018-01-05 | 华电电力科学研究院 | Steam turbine extraction condensing back pressure gradient utilization system and its application |
| CN207740056U (en) * | 2017-12-26 | 2018-08-17 | 华北电力大学 | A kind of CO2The machine furnace cooling of cycle can recycle and power generation and heat supply integral system |
| CN108487952A (en) * | 2018-05-08 | 2018-09-04 | 中国华能集团清洁能源技术研究院有限公司 | A kind of steam high-grade energy-recuperation system and working method for realizing annual operation |
| CN207934943U (en) * | 2018-02-11 | 2018-10-02 | 华电郑州机械设计研究院有限公司 | A kind of filling formula back pressure turbine heating system |
| CN208106512U (en) * | 2018-03-28 | 2018-11-16 | 国家电投集团科学技术研究院有限公司 | The exhaust steam residual heat circulatory system |
| CN208330475U (en) * | 2018-05-08 | 2019-01-04 | 中国华能集团清洁能源技术研究院有限公司 | A kind of steam high-grade energy recycling system for realizing annual operation |
-
2019
- 2019-04-29 CN CN201910354704.1A patent/CN110056403B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016416A (en) * | 2016-05-23 | 2016-10-12 | 华北电力大学 | Boiler smoke and steam turbine exhaust coupled high-back-pressure combined heat and power generation system |
| CN206458511U (en) * | 2017-02-16 | 2017-09-01 | 山西漳泽电力股份有限公司电力技术研究中心 | A kind of double mode therrmodynamic system of back pressure pure condensate and exhaust steam residual heat utilize system |
| CN107269331A (en) * | 2017-04-28 | 2017-10-20 | 华电电力科学研究院 | Realize cascaded utilization of energy and participate in the heat supply steam bleeding system and method for depth peak regulation |
| CN107542506A (en) * | 2017-08-23 | 2018-01-05 | 华电电力科学研究院 | Steam turbine extraction condensing back pressure gradient utilization system and its application |
| CN207740056U (en) * | 2017-12-26 | 2018-08-17 | 华北电力大学 | A kind of CO2The machine furnace cooling of cycle can recycle and power generation and heat supply integral system |
| CN207934943U (en) * | 2018-02-11 | 2018-10-02 | 华电郑州机械设计研究院有限公司 | A kind of filling formula back pressure turbine heating system |
| CN208106512U (en) * | 2018-03-28 | 2018-11-16 | 国家电投集团科学技术研究院有限公司 | The exhaust steam residual heat circulatory system |
| CN108487952A (en) * | 2018-05-08 | 2018-09-04 | 中国华能集团清洁能源技术研究院有限公司 | A kind of steam high-grade energy-recuperation system and working method for realizing annual operation |
| CN208330475U (en) * | 2018-05-08 | 2019-01-04 | 中国华能集团清洁能源技术研究院有限公司 | A kind of steam high-grade energy recycling system for realizing annual operation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379604A (en) * | 2020-02-24 | 2020-07-07 | 东方电气集团东方汽轮机有限公司 | Multistage heat supply back pressure type steam turbine, thermodynamic system and heat supply method thereof |
| CN112145244A (en) * | 2020-09-22 | 2020-12-29 | 西安热工研究院有限公司 | System and method for improving water supply temperature and steam supply capacity of coal-fired power generating unit |
| CN112145244B (en) * | 2020-09-22 | 2023-02-24 | 西安热工研究院有限公司 | System and method for improving water supply temperature and steam supply capacity of coal-fired power generating unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110056403B (en) | 2021-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104763485B (en) | A kind of concurrent heating type ultrahigh pressure/subcritical back pressure thermal power plant unit thermodynamic system | |
| CN108087944B (en) | A kind of condensed water recycling heating system based on water water ejector | |
| CN102011616A (en) | High-flow, low-parameter and high-backpressure expansion power energy-saving system | |
| CN110056403A (en) | It is connected with the steam extraction back pressure heating type steam turbine and application method of Analysis of Exhaust Steam Recovering System | |
| CN209263108U (en) | A kind of heat supply network draining system | |
| CN208222621U (en) | A kind of steam exhaust heat recovery utilization system based on steam jet heat pump | |
| CN103403303A (en) | Retrofitting a heating steam extraction facility in a fossil-fired power plant | |
| CN109520001A (en) | A kind of heat supply network draining system | |
| CN207196593U (en) | It is a kind of based on the high pressure combining heating system for taking out back of the body machine technology | |
| CN108915808A (en) | Double pressure back pressure turbine heating systems | |
| CN207122894U (en) | A kind of modular condensed water in boiler pipeline balance system | |
| CN208793049U (en) | Double pressure back pressure turbine heating systems | |
| CN209244620U (en) | A kind of steam exhaust cooling system | |
| CN207194971U (en) | A kind of backheat heating heating system of cascaded utilization of energy | |
| CN108800976A (en) | A kind of condensed water Water Level Regulating System and method being suitable for double back pressure thermal power plant units | |
| CN114877307A (en) | Double-pumping back pressure heat supply system capable of realizing high-parameter heat supply and working method thereof | |
| CN208702473U (en) | Closed-up water back heating system | |
| CN204881237U (en) | Steam heat transfer system with reinforce heat transfer effect | |
| CN107504544B (en) | High-medium pressure combined heating system based on energy level matching | |
| CN208567560U (en) | A kind of condensed water Water Level Regulating System suitable for double back pressure thermal power plant units | |
| CN207146358U (en) | A kind of boiler blow-off constant pressure water compensation apparatus | |
| CN208458053U (en) | A kind of thermal power plant unit operating system improving safety | |
| CN111735037A (en) | High-pressure heater accident drainage system capable of recycling accident drainage heat | |
| CN205867608U (en) | Pure steam generator | |
| CN207245769U (en) | A kind of low pressure (LP) cylinder linear leaf cooling system based on feed pump turbine steam discharge |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |