CN105716071B - Built-in temperature-decreased pressure reducer structure - Google Patents
Built-in temperature-decreased pressure reducer structure Download PDFInfo
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- CN105716071B CN105716071B CN201610190142.8A CN201610190142A CN105716071B CN 105716071 B CN105716071 B CN 105716071B CN 201610190142 A CN201610190142 A CN 201610190142A CN 105716071 B CN105716071 B CN 105716071B
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- decompression
- grade
- desuperheat
- temperature
- built
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G5/00—Controlling superheat temperature
- F22G5/12—Controlling superheat temperature by attemperating the superheated steam, e.g. by injected water sprays
- F22G5/123—Water injection apparatus
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Abstract
The present invention relates to a kind of built-in temperature-decreased pressure reducer structure, it is made up of n grades of decompression parts and desuperheat part, it is characterised in that：N grades of decompression part Series connection weldings are integral, n is the natural number more than 1, first order decompression partial inlet is connected with steam inlet, first order decompression section port is located at the entrance that the second level depressurizes the interior of part and part is depressurized as the second level, the rest may be inferred, and the outlet of n-th grade of decompression part is steam (vapor) outlet, and desuperheat is partially installed in the housing of n-th grade of decompression part, desuperheat part water inlet is connected with external water source, and the mouth spray of desuperheat part is located in the housing of n-th grade of decompression part.The present invention has floor space small, easy for installation, easy to operate, the features such as pressure and temperature reducing effect is good.
Description
Technical field
The present invention relates to a kind of built-in temperature-decreased pressure reducer structure, it is adaptable to turbine bypass system.
Background technology
Temperature-decreased pressure reducer, which is that steam turbine is indispensable, is welded to form part, has very big shadow to the economy of turbine system
Ring.In order to reduce shutdown loss, the economy of turbine system is improved, domestic and foreign scholars to being directed to temperature-decreased pressure reducer for many years
Research, occurred in that many different temperature-decreased pressure reducer structures successively.
The content of the invention
It is an object of the invention to provide the built-in temperature-decreased pressure reducer of turbine bypass system, the present invention has floor space
It is small, easy for installation, easy to operate, the features such as pressure and temperature reducing effect is good.
The technical scheme is that：
Built-in temperature-decreased pressure reducer structure, is made up of n grades of decompression parts and desuperheat part, it is characterised in that：N grades of relief portions
Divide Series connection welding integral, n is the natural number more than 1, first order decompression partial inlet is connected with steam inlet, first order decompression
Section port is located at the entrance that the second level depressurizes the interior of part and part is depressurized as the second level, and the rest may be inferred, n-th grade of relief portion
The outlet divided is steam (vapor) outlet, and desuperheat is partially installed in the housing of n-th grade of decompression part, desuperheat part water inlet and external water
Source is connected, and the mouth spray of desuperheat part is located in the housing of n-th grade of decompression part.
Described desuperheat part is made up of spray valve, spray piping, and spray piping is welded on the shell of n-th grade of decompression part
On body, spray valve is installed in spray piping water inlet, positioned at the tube wall of the spray piping of the enclosure interior of n-th grade of decompression part
Provided with some mouth sprays, it is opened and closed by spraying Valve controlling mouth spray.
The structure that described first order relief portion assigns to (n-1)th grade of decompression part is identical, by decompression cavity and one piece
Steel plate is welded, steel plate provided with some circular holes as decompression spout, n-th grade decompression part by it is another decompression cavity, two
Block taper steel plate and closure plate are welded, and are respectively welded on another decompression cavity between two blocks of taper steel plates, two blocks of taper steel plates
Closure plate is welded, two blocks of taper steel plates are used as decompression spout provided with some circular holes.
The structure that described first order relief portion assigns to (n-1)th grade of decompression part is identical, by decompression cavity and one piece
Steel plate is welded, and some decompression spouts are opened on decompression cavity, and in the relief chamber body that next stage depressurizes part.
The present invention is in use, be usually mounted to condenser throat or steam exhaust device throat.
The decompression part of the present invention, decompression purpose is realized using external differential in relief chamber body by depressurizing spout.
Desuperheating water atomizing effect is realized by mouth spray using spray piping inside and outside differential pressure in the desuperheat part of the present invention.
The present invention meets the pressure and temperature reducing requirement of turbine bypass system, optimizes floor space by redesigning, excellent
Mounting means is changed, and operation is more facilitated.The present invention is applied to turbine bypass system.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is one-level decompression partial schematic diagram in the example of the present invention.
Fig. 3 is second depressurized partial schematic diagram in the example of the present invention.
Embodiment
With reference to accompanying drawing, the invention will be further described.
As shown in figure 1, the present invention is made up of n grades of decompression parts and desuperheat part, it is contemplated that easy for installation, usual n values
For 2,2 grades of decompression part Series connection weldings are integral, and the first order decompression entrance of part 1 is connected with steam inlet, first order relief portion
1 outlet is divided to be located at the entrance that the second level depressurizes the interior of part 2 and depressurizes part 2 as the second level, desuperheat part 3 is installed in second
In the housing of level decompression part 2, the water inlet of desuperheat part 3 is connected with external water source, and the mouth spray of desuperheat part 3 is located at the second level
In the housing for depressurizing part 2.
Described desuperheat part 3 is made up of spray valve, spray piping, and spray piping is welded on second level decompression part 2
Housing on, spray piping water inlet install spray valve, positioned at the second level depressurize part enclosure interior spray piping
Tube wall be provided with some mouth sprays, by spray Valve controlling mouth spray be opened and closed.
As shown in Figure 1, Figure 2, Figure 3 shows, described first order decompression part 1 is welded by decompression cavity 1-1 and one piece of steel plate 1-2
Connect and form, steel plate 1-2 is used as decompression spout provided with some circular holes；Or some decompression spouts are opened on decompression cavity 1-1,
And in the relief chamber body that part 2 is depressurized in the second level；Depressurize being bored by another decompression cavity 2-1, two pieces for part 2 in the second level
Shape steel plate 2-2 and closure plate 2-3 are welded, and two pieces of taper steel plate 2-2, two pieces are respectively welded on another decompression cavity 2-1
Closure plate 2-3, two pieces of taper steel plate 2-2 are welded between taper steel plate 2-2 provided with some circular holes as decompression spout.
The present invention is in use, be usually mounted to condenser throat or steam exhaust device throat.The decompression part of the present invention, is utilized
External differential realizes decompression purpose by depressurizing spout in relief chamber body.The desuperheat part of the present invention utilizes spray piping inside and outside differential pressure
Desuperheating water atomizing effect is realized by mouth spray.
After the present invention is installed, mouth spray can pass through manually-operated gate or automatic valve remote control (recommendation).Steam turbine stops
After machine, steam by-pass valve and water curtain switch are opened, starts the present invention and carries out pressure and temperature reducing operation.The present invention hardly accounts for scene
Space, simple installation need to only dock the mouth of pipe, easy to operate, and pressure and temperature reducing works well.
Claims (4)
1. built-in temperature-decreased pressure reducer structure, is made up of n grades of decompression parts and desuperheat part, it is characterised in that：N grades of decompression parts
Series connection welding is integral, and n is the natural number more than 1, and first order decompression partial inlet is connected with steam inlet, first order relief portion
Sub-export is located at the entrance that the second level depressurizes the interior of part and part is depressurized as the second level, and the rest may be inferred, n-th grade of decompression part
Outlet be steam (vapor) outlet, desuperheat be partially installed on n-th grade decompression part housing in, desuperheat part water inlet and external water source
It is connected, the mouth spray of desuperheat part is located in the housing of n-th grade of decompression part.
2. built-in temperature-decreased pressure reducer structure according to claim 1, it is characterised in that：Described desuperheat part is by spraying
Valve, spray piping composition, spray piping are welded on the housing of n-th grade of decompression part, and spray is installed in spray piping water inlet
Valve is drenched, the tube wall positioned at the spray piping of the enclosure interior of n-th grade of decompression part is provided with some mouth sprays, by spraying valve
Control mouth spray opening and closing.
3. built-in temperature-decreased pressure reducer structure according to claim 1 or 2, it is characterised in that：Described first order decompression
The structure of part to (n-1)th grade of decompression part is identical, is welded by decompression cavity and one block of steel plate, if steel plate is provided with
Dry circular hole is as decompression spout, and n-th grade depressurizes being welded by another decompression cavity, two blocks of taper steel plates and closure plate for part,
It is respectively welded on another decompression cavity between two blocks of taper steel plates, two blocks of taper steel plates and welds closure plate, is set on two blocks of taper steel plates
There are some circular holes as decompression spout.
4. built-in temperature-decreased pressure reducer structure according to claim 1 or 2, it is characterised in that：Described first order decompression
The structure of part to (n-1)th grade of decompression part is identical, is welded by decompression cavity and one block of steel plate, some decompression spouts
It is opened on decompression cavity, and in the relief chamber body that next stage depressurizes part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610190142.8A CN105716071B (en) | 2016-03-30 | 2016-03-30 | Built-in temperature-decreased pressure reducer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610190142.8A CN105716071B (en) | 2016-03-30 | 2016-03-30 | Built-in temperature-decreased pressure reducer structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105716071A CN105716071A (en) | 2016-06-29 |
| CN105716071B true CN105716071B (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610190142.8A Active CN105716071B (en) | 2016-03-30 | 2016-03-30 | Built-in temperature-decreased pressure reducer structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11073279B2 (en) * | 2016-08-23 | 2021-07-27 | Fisher Controls International Llc | Multi-cone, multi-stage spray nozzle |
| CN108592137A (en) * | 2018-07-13 | 2018-09-28 | 大连亨利测控仪表工程有限公司 | A kind of thermal power plant's flexibility transformation twin-tub decoupling depth peak regulation system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3904722A (en) * | 1972-07-31 | 1975-09-09 | Tokico Ltd | Steam reforming device |
| CN2142909Y (en) * | 1992-11-30 | 1993-09-29 | 王平军 | Multi-stage pressure relief device |
| CN201162945Y (en) * | 2008-02-22 | 2008-12-10 | 杭州华惠阀门有限公司 | Attemperation and pressure reducing device |
| CN205655281U (en) * | 2016-03-30 | 2016-10-19 | 中国长江动力集团有限公司 | Built -in temperature and pressure reduction ware structure |
-
2016
- 2016-03-30 CN CN201610190142.8A patent/CN105716071B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3904722A (en) * | 1972-07-31 | 1975-09-09 | Tokico Ltd | Steam reforming device |
| CN2142909Y (en) * | 1992-11-30 | 1993-09-29 | 王平军 | Multi-stage pressure relief device |
| CN201162945Y (en) * | 2008-02-22 | 2008-12-10 | 杭州华惠阀门有限公司 | Attemperation and pressure reducing device |
| CN205655281U (en) * | 2016-03-30 | 2016-10-19 | 中国长江动力集团有限公司 | Built -in temperature and pressure reduction ware structure |
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| Publication number | Publication date |
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| CN105716071A (en) | 2016-06-29 |
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