CN201963960U - Combination valve type temperature and pressure reducing device - Google Patents
Combination valve type temperature and pressure reducing device Download PDFInfo
- Publication number
- CN201963960U CN201963960U CN2011200768821U CN201120076882U CN201963960U CN 201963960 U CN201963960 U CN 201963960U CN 2011200768821 U CN2011200768821 U CN 2011200768821U CN 201120076882 U CN201120076882 U CN 201120076882U CN 201963960 U CN201963960 U CN 201963960U
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- CN
- China
- Prior art keywords
- valve
- temperature
- proporting
- pressure reducing
- brake switch
- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a combination valve type temperature and pressure reducing device which comprises a control device, wherein the control device is connected with a temperature sensor, a pressure sensor and a temperature-reduced water controlling and adjusting valve, the temperature sensor is arranged in a steam pipeline, the pressure sensor and the temperature-lowered water controlling and adjusting valve are arranged at an inlet in the steam pipeline, and two ends of the temperature-reduced water controlling and adjusting valve are respectively connected with a check valve and a stop valve; and the combination valve type temperature and pressure reducing device is characterized in that: a combination valve is arranged on the steam pipeline and connected with a control device. As a single temperature and pressure reducing device in the original temperature and pressure reducing device is replaced by the combination valve, the wear of the sealing surface of the temperature and pressure reducing valve is effectively reduced, and the adjustment accuracy of secondary steam parameters is improved.
Description
Technical field
The utility model relates to a kind of valve type reducing-and-cooling plant.
Background technique
As described in Figure 1, the integrated reducing-and-cooling plant for using at present comprises a steam converter valve 1, steam line 2, control gear 3, safety valve 4, pressure meter 5, safety check 6, cooling water modulating valve 7, stop valve 8 and outlet temperature sensor 9.Its depressurized system mainly is made up of single steam converter valve 1, when fresh steam pressure surge (rising), for guaranteeing secondary steam flow rate, pressure stability, steam converter valve 1 aperture reduces, otherwise when fresh steam pressure surge (reduction), for guaranteeing secondary steam flow rate, pressure stability, steam converter valve 1 aperture increases.If steam converter valve 1 is in little aperture operating mode for a long time, then can aggravates sealing surface wear and leak.Therefore the shortcoming of the reducing-and-cooling plant of this structure is: degree of regulation is poor, sealing surface wear Da Yi leaks.
Summary of the invention
The purpose of this utility model provides a kind of raising degree of regulation and antileakaging reducing-and-cooling plant.
In order to achieve the above object, the technical solution of the utility model has provided a kind of combination brake switch and proporting gate-type reducing-and-cooling plant, comprise control gear, control gear is connected at the interior temperature transducer of steam line, is located at pressure transducer and control cooling water modulating valve in import and the steam line, the two ends of control cooling water modulating valve connect safety check and stop valve respectively, it is characterized in that: be provided with combination brake switch and proporting on steam line, this combination brake switch and proporting connects control gear.
Further, described combination brake switch and proporting is made up of at least two valves, have by and regulate two functions.
The utility model replaces single steam converter valve in the former reducing-and-cooling plant by combination brake switch and proporting, has reduced the steam converter valve sealing surface wear effectively, improves secondary steam Variation precision.
Description of drawings
Fig. 1 is former integrated reducing-and-cooling plant schematic representation;
A kind of combination brake switch and proporting gate-type reducing-and-cooling plant schematic representation that Fig. 2 provides for the utility model.
Embodiment
Enumerate a preferable implementation methods of the present utility model below in conjunction with accompanying drawing.
In conjunction with Fig. 2, the utility model provides a kind of combination brake switch and proporting gate-type reducing-and-cooling plant, comprise control gear 3, control gear 3 is connected at the temperature transducer 9 in the steam line 2, be located at the pressure transducer in import and the steam line 2, combination brake switch and proporting 10 upper valve aperture signals, control cooling water modulating valve 7, combination brake switch and proporting 10 lower valve aperture signals, on steam line 2, be provided with safety valve 4 and pressure meter 5, steam line 2 connects safety check 6, safety check 6 connects cooling water modulating valve 7 and stop valve 8 successively, on steam line 2, be provided with combination brake switch and proporting 10, combination brake switch and proporting 10 have by and regulate two functions.
The upper valve of combination brake switch and proporting 10 is mainly born the stop valve function, and the steam inlet pressure P 1 of regulating combination brake switch and proporting 10 lower valve simultaneously is in OK range, and the reduction valve regulatory function is mainly born in combination brake switch and proporting 10 bottoms, is responsible for regulating the secondary steam parameter.When regulating combination brake switch and proporting 10 top apertures, the steam inlet pressure change can make the work aperture of combination brake switch and proporting 10 bottom reduction valve be in a desirable scope (30%-100%), because by and regulatory function separately, reduce the steam converter valve sealing surface wear effectively, improved secondary steam Variation precision.
Claims (2)
1. combination brake switch and proporting gate-type reducing-and-cooling plant, comprise control gear (3), control gear (3) is connected at the interior temperature transducer (9) of steam line (2), is located at pressure transducer and control cooling water modulating valve (7) in import and the steam line (2), the two ends of control cooling water modulating valve (7) connect safety check (6) and stop valve (8) respectively, it is characterized in that: be provided with combination brake switch and proporting (10) on steam line (2), this combination brake switch and proporting (10) connects control gear (3).
2. a kind of combination brake switch and proporting gate-type reducing-and-cooling plant as claimed in claim 1, it is characterized in that: described combination brake switch and proporting (10) is made up of at least two valves, have by and regulate two functions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200768821U CN201963960U (en) | 2011-03-22 | 2011-03-22 | Combination valve type temperature and pressure reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200768821U CN201963960U (en) | 2011-03-22 | 2011-03-22 | Combination valve type temperature and pressure reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963960U true CN201963960U (en) | 2011-09-07 |
Family
ID=44526497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200768821U Expired - Lifetime CN201963960U (en) | 2011-03-22 | 2011-03-22 | Combination valve type temperature and pressure reducing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963960U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388993A (en) * | 2012-05-11 | 2013-11-13 | 四川优的科技有限公司 | Direct-current travel pressure and temperature reducing system |
| CN105465608A (en) * | 2014-09-12 | 2016-04-06 | 付开领 | Temperature and pressure reducing device |
| CN109812801A (en) * | 2019-01-25 | 2019-05-28 | 无锡卓尔阀业有限公司 | Self protection type's desuperheating water regulating device |
-
2011
- 2011-03-22 CN CN2011200768821U patent/CN201963960U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388993A (en) * | 2012-05-11 | 2013-11-13 | 四川优的科技有限公司 | Direct-current travel pressure and temperature reducing system |
| CN105465608A (en) * | 2014-09-12 | 2016-04-06 | 付开领 | Temperature and pressure reducing device |
| CN109812801A (en) * | 2019-01-25 | 2019-05-28 | 无锡卓尔阀业有限公司 | Self protection type's desuperheating water regulating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |