CN105716071A - Internally-arranged temperature and pressure reducer structure - Google Patents
Internally-arranged temperature and pressure reducer structure Download PDFInfo
- Publication number
- CN105716071A CN105716071A CN201610190142.8A CN201610190142A CN105716071A CN 105716071 A CN105716071 A CN 105716071A CN 201610190142 A CN201610190142 A CN 201610190142A CN 105716071 A CN105716071 A CN 105716071A
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- China
- Prior art keywords
- decompression
- grade
- temperature
- desuperheat
- welded
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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 invention relates to an internally-arranged temperature and pressure reducer structure. The internally-arranged temperature and pressure reducer structure is composed of n pressure reduction parts and a temperature reduction part and is characterized in that the n pressure reduction parts are welded into a whole in a series connection mode, n is a natural number greater than 1, an inlet of the first-stage pressure reduction part is connected to a steam inlet, an outlet of the first-stage pressure reduction part is located inside the second-stage pressure reduction part and serves as an inlet of the second-stage pressure reduction part, an outlet of the nth-stage pressure reduction part is a steam outlet by analogy, the temperature reduction part is installed in a shell of the nth-stage pressure reduction part, a water inlet of the temperature reduction part is connected to an external water source, and a spraying port of the temperature reduction part is located in the shell of the nth-stage pressure reduction part. The internally-arranged temperature and pressure reducer structure has the advantages of being small in occupied area, convenient to install, convenient to operate and good in temperature and pressure reduction effect.
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 is that steam turbine is indispensable is welded to form part, and the economy of turbine system is had a significant impact.In order to reduce shutdown loss, improve the economy of turbine system, the Chinese scholars research to being devoted to temperature-decreased pressure reducer for many years, occur in that many different temperature-decreased pressure reducer structures successively.
Summary of the invention
It is an object of the invention to provide the built-in temperature-decreased pressure reducer of turbine bypass system, the features such as it is little that the present invention has floor space, easy for installation, easy to operate, and pressure and temperature reducing is effective.
The technical scheme is that
Built-in temperature-decreased pressure reducer structure, it is made up of n level decompression part and desuperheat part, it is characterized in that: the decompression part series welding of n level is connected into one, n is the natural number more than 1, first order relief portion subentry is connected with steam inlet, that first order decompression section port is positioned at second level decompression part and entrance as second level decompression part, the rest may be inferred, the outlet of n-th grade of decompression part is steam (vapor) outlet, desuperheat is partially installed in the housing of n-th grade of decompression part, desuperheat part water inlet is connected with external water source, the mouth spray of desuperheat part is positioned at the housing of n-th grade of decompression part.
Described desuperheat part by spraying valve, spray piping forms, spray piping is welded on the housing of n-th grade of decompression part, spray valve is installed in spray piping water inlet, the tube wall being positioned at the spray piping of the enclosure interior of n-th grade of decompression part is provided with some mouth sprays, by shower valve gate control mouth spray opening and closing.
It is identical that described first order relief portion assigns to the structure of (n-1)th grade of decompression part, it is welded by decompression cavity and a block plate, steel plate is provided with some circular holes as decompression spout, being welded by another decompression cavity, two blocks of taper steel plates and closure plate of n-th grade of decompression part, another decompression cavity is respectively welded two blocks of taper steel plates, welding closure plate between two blocks of taper steel plates, two blocks of taper steel plates are provided with some circular holes as decompression spout.
It is identical that described first order relief portion assigns to the structure of (n-1)th grade of decompression part, decompression cavity and a block plate are welded, and some decompression spouts are opened on decompression cavity, and are positioned at the relief chamber body of next stage decompression part.
When the present invention uses, it is usually mounted to condenser throat or steam exhaust device throat.
The decompression part of the present invention, utilizes relief chamber inside and outside pressure reduction to realize decompression purpose by the spout that reduces pressure.
The desuperheat part of the present invention utilizes spray piping inside and outside differential pressure to realize desuperheating water atomizing effect by mouth spray.
The present invention, through redesigning, meets the pressure and temperature reducing requirement of turbine bypass system, optimizes occupation of land space, optimizes mounting means, and make operation more convenient.The present invention is applicable to turbine bypass system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 be the present invention example in one-level decompression partial schematic diagram.
Fig. 3 be the present invention example in second depressurized partial schematic diagram.
Detailed description of the invention
In conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the present invention is made up of n level decompression part and desuperheat part, consider easy for installation, usual n value is 2,2 grades of decompression part series weldings are connected into one, first order decompression part 1 entrance is connected with steam inlet, that first order decompression part 1 outlet is positioned at second level decompression part 2 and reduce pressure part 2 as the second level entrance, desuperheat part 3 is arranged in the housing of second level decompression part 2, desuperheat part 3 water inlet is connected with external water source, and the mouth spray of desuperheat part 3 is positioned at the housing of second level decompression part 2.
Described desuperheat part 3 is made up of spray valve, spray piping, spray piping is welded on the housing of second level decompression part 2, spray valve is installed in spray piping water inlet, the tube wall of the spray piping being positioned at the enclosure interior of second level decompression part is provided with some mouth sprays, by shower valve gate control mouth spray opening and closing.
As shown in Figure 1, Figure 2, Figure 3 shows, described first order decompression part 1 is welded by a decompression cavity 1-1 and block plate 1-2, and steel plate 1-2 is provided with some circular holes as decompression spout；Or some decompression spouts is opened on decompression cavity 1-1, and it is positioned at the relief chamber body of second level decompression part 2；Being welded by another decompression cavity 2-1, two pieces of taper steel plate 2-2 and closure plate 2-3 of second level decompression part 2, another decompression cavity 2-1 is respectively welded two pieces of taper steel plate 2-2, welding closure plate 2-3 between two pieces of taper steel plate 2-2, two pieces of taper steel plate 2-2 are provided with some circular holes as decompression spout.
When the present invention uses, it is usually mounted to condenser throat or steam exhaust device throat.The decompression part of the present invention, utilizes relief chamber inside and outside pressure reduction to realize decompression purpose by the spout that reduces pressure.The desuperheat part of the present invention utilizes spray piping inside and outside differential pressure to realize desuperheating water atomizing effect by mouth spray.
After the present invention installs, mouth spray manually valve or automatic valve can remotely control (recommendation).After halt turbines, open steam by-pass valve and water curtain switch, start the present invention and carry out pressure and temperature reducing operation.The present invention accounts for site space hardly, and the mouth of pipe only need to be docked by simple installation, easy and simple to handle, and pressure and temperature reducing is respond well.
Claims (4)
1. built-in temperature-decreased pressure reducer structure, it is made up of n level decompression part and desuperheat part, it is characterized in that: the decompression part series welding of n level is connected into one, n is the natural number more than 1, first order relief portion subentry is connected with steam inlet, that first order decompression section port is positioned at second level decompression part and entrance as second level decompression part, the rest may be inferred, the outlet of n-th grade of decompression part is steam (vapor) outlet, desuperheat is partially installed in the housing of n-th grade of decompression part, desuperheat part water inlet is connected with external water source, the mouth spray of desuperheat part is positioned at the housing of n-th grade of decompression part.
2. built-in temperature-decreased pressure reducer structure according to claim 1, it is characterized in that: described desuperheat part by spraying valve, spray piping forms, spray piping is welded on the housing of n-th grade of decompression part, spray valve is installed in spray piping water inlet, the tube wall being positioned at the spray piping of the enclosure interior of n-th grade of decompression part is provided with some mouth sprays, by shower valve gate control mouth spray opening and closing.
3. built-in temperature-decreased pressure reducer structure according to claim 1 and 2, it is characterized in that: it is identical that described first order relief portion assigns to the structure of (n-1)th grade of decompression part, it is welded by decompression cavity and a block plate, steel plate is provided with some circular holes as decompression spout, being welded by another decompression cavity, two blocks of taper steel plates and closure plate of n-th grade of decompression part, another decompression cavity is respectively welded two blocks of taper steel plates, welding closure plate between two blocks of taper steel plates, two blocks of taper steel plates are provided with some circular holes as decompression spout.
4. built-in temperature-decreased pressure reducer structure according to claim 1 and 2, it is characterized in that: it is identical that described first order relief portion assigns to the structure of (n-1)th grade of decompression part, it is welded by decompression cavity and a block plate, some decompression spouts are opened on decompression cavity, and are positioned at the relief chamber body of next stage decompression 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 true CN105716071A (en) | 2016-06-29 |
| CN105716071B 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764080A (en) * | 2016-08-23 | 2018-03-06 | 费希尔控制产品国际有限公司 | More tapers, multistage injection 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764080A (en) * | 2016-08-23 | 2018-03-06 | 费希尔控制产品国际有限公司 | More tapers, multistage injection 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105716071B (en) | 2017-11-03 |
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