CN104500754A - High-pressure-difference multistage sleeve adjustment valve - Google Patents

High-pressure-difference multistage sleeve adjustment valve Download PDF

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Publication number
CN104500754A
CN104500754A CN201410743022.7A CN201410743022A CN104500754A CN 104500754 A CN104500754 A CN 104500754A CN 201410743022 A CN201410743022 A CN 201410743022A CN 104500754 A CN104500754 A CN 104500754A
Authority
CN
China
Prior art keywords
valve
sleeve
pressure
sleeve assembly
adjustment valve
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.)
Pending
Application number
CN201410743022.7A
Other languages
Chinese (zh)
Inventor
娄冬梅
万胜军
郑红丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HARBIN POWER PLANT VALVE CO Ltd
Original Assignee
HARBIN POWER PLANT VALVE CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HARBIN POWER PLANT VALVE CO Ltd filed Critical HARBIN POWER PLANT VALVE CO Ltd
Priority to CN201410743022.7A priority Critical patent/CN104500754A/en
Publication of CN104500754A publication Critical patent/CN104500754A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)
  • Lift Valve (AREA)

Abstract

The invention discloses a high-pressure-difference multistage sleeve adjustment valve, and belongs to the field of thermal power and nuclear power valves. The high-pressure-difference multistage sleeve adjustment valve is mounted on a steam-water system pipeline of a thermal power and nuclear power unit and is important equipment for adjusting flow, pressure and temperature of a medium. The high-pressure-difference multistage sleeve adjustment valve consists of a valve body, a valve seat, a sleeve assembly, a valve rod, a valve clack, a valve cover, bolts and the like, wherein the valve cover presses the sleeve assembly through the bolts, and the valve seat is pressed on the valve body; the valve rod drives the valve clack to move in the sleeve assembly, so that the circulating area of the valve is adjusted; the sleeve assembly consists of multiple stages of sleeves, and an equal quantity of throttling holes are formed in each layer of the sleeve, and in one-to-one correspondence in position; the throttling holes in the adjacent sleeves are staggered and stacked; the medium flows through the stacked areas for throttling pressure reduction and then enters the whole throttling hole space for volume expansion, so that gradual pressure reduction is effectively realized. According to the high-pressure-difference multistage sleeve adjustment valve, flash evaporation and cavitation are effectively avoided, so that the service life of the adjustment valve is prolonged, and the noise of the valve is reduced.

Description

High Pressure Difference multi-stage sleeve modulating valve
Technical field
The present invention relates to a kind of High Pressure Difference multi-stage sleeve modulating valve, belong to thermoelectricity, nuclear power valve field.
Background technique
High Pressure Difference multi-stage sleeve modulating valve is arranged on thermoelectricity, nuclear power generating sets boiler circuit pipeline, is the visual plant regulating rate-of flow, pressure, temperature.
At present, the sleeve-type regulating valve for High Pressure Difference operating mode does not arrange effective throttling and expansion space, or runner arranges unreasonable, fails to reach the throttling of expection, decompression, noise reduction, produces flash distillation, cavitation phenomenons, reduces valve working life.
The present invention adopts multilayer sleeve throttle orifice to misplace, and layout carries out reducing pressure, noise reduction, efficiently solves the problems referred to above.
Summary of the invention
For above-mentioned technical problem, the object of this invention is to provide a kind of High Pressure Difference multi-stage sleeve modulating valve, be applicable to High Pressure Difference operating mode, effectively prevent flash distillation and cavitation phenomenons, extend its working life.
For achieving the above object, the invention provides a kind of High Pressure Difference multi-stage sleeve modulating valve, it comprises valve body (1), valve seat (2), flap (3), sleeve assembly (4), valve rod (5), valve gap (6), bolt (7).Valve body (1) and valve gap (6) adopt bolt (7) to be connected, valve gap (6) clamp sleeve assembly (4), and sleeve assembly (4) compresses valve seat (2) again.
The sleeve assembly that described High Pressure Difference multi-stage sleeve modulating valve adopts coordinates nested composition by three layers or three layers with upper bush, and each layer sleeve is provided with the equal throttle orifice of quantity, and throttle orifice position one_to_one corresponding.The throttle orifice dislocation arranged superposed of adjacent sleeve, MEDIA FLOW carries out expenditure and pressure through area of overlap place, then enters whole throttle orifice space and realize dilatation.
The invention has the beneficial effects as follows: MEDIA FLOW realizes throttling through the overlapping part of throttle orifice, dilatation is carried out again through whole throttle orifice, by multistage throttle, the dilatation of sleeve assembly, effectively achieve step pressure reducing, deceleration, avoid producing flash distillation and cavitation phenomenons, effective raising modulating valve working life, reduce vibration and noise.
Accompanying drawing explanation
Fig. 1 is the structural representation of High Pressure Difference multi-stage sleeve modulating valve;
Fig. 2 is sleeve assembly sectional view.
In figure, 1. valve body, 2. valve seat, 3. flap, 4. sleeve assembly, 5. valve rod, 6. valve gap, 7. bolt, 8. round pin, 9. sleeve
Embodiment
In the embodiment shown in fig. 1, valve gap 6 clamp sleeve assembly 4, then valve seat 2 is pressed on valve body 1, valve rod 5 drives flap 3 mobile in sleeve assembly 4, and the flow area of regulating valve, realizes the regulatory function of valve.
As shown in Figure 2, sleeve assembly 4 coordinates nested composition by three layers or three layers with upper bush 9, adopts round pin 8 to locate between sleeve.Each layer sleeve 9 is provided with the identical circular orifice of quantity, and throttle orifice position one_to_one corresponding.The throttle orifice circumferentially same direction dislocation arranged superposed of adjacent sleeve, forms the medium runner of throttling step by step, dilatation.
Sub-thread high-energy medium is dispersed into the little energy medium of multiply by throttle orifice, plays reduction of speed noise reduction, realizes step pressure reducing by throttle orifice dislocation, avoids producing flash distillation, cavitation phenomenons.Final stage sleeve makes medium tangentially flow out, and avoids medium to wash away valve interior wall, thus improves the performance and used life of modulating valve.

Claims (2)

1. High Pressure Difference multi-stage sleeve modulating valve, is characterized in that: it comprises valve body (1), valve seat (2), flap (3), sleeve assembly (4), valve rod (5), valve gap (6), bolt (7).Valve body (1) and valve gap (6) adopt bolt (7) to be connected, valve gap (6) clamp sleeve assembly (4), and sleeve assembly (4) compresses valve seat (2) again.
2. High Pressure Difference multi-stage sleeve modulating valve according to claim 1, it is characterized in that: sleeve assembly (4) coordinates nested composition by three layers or three layers with upper bush, each layer sleeve is provided with the identical throttle orifice of quantity, and throttle orifice position one_to_one corresponding, the throttle orifice circumferentially same direction dislocation arranged superposed of adjacent sleeve.
CN201410743022.7A 2014-12-02 2014-12-02 High-pressure-difference multistage sleeve adjustment valve Pending CN104500754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410743022.7A CN104500754A (en) 2014-12-02 2014-12-02 High-pressure-difference multistage sleeve adjustment valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410743022.7A CN104500754A (en) 2014-12-02 2014-12-02 High-pressure-difference multistage sleeve adjustment valve

Publications (1)

Publication Number Publication Date
CN104500754A true CN104500754A (en) 2015-04-08

Family

ID=52942186

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410743022.7A Pending CN104500754A (en) 2014-12-02 2014-12-02 High-pressure-difference multistage sleeve adjustment valve

Country Status (1)

Country Link
CN (1) CN104500754A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105952906A (en) * 2016-05-10 2016-09-21 应建忠 Labyrinth adjusting valve
CN109340449A (en) * 2018-11-13 2019-02-15 广东粤电靖海发电有限公司 A kind of multistage accumulation of energy buck configuration regulating valve
CN110375100A (en) * 2019-08-23 2019-10-25 开立基业（北京）阀门制造有限公司 Flow control valve and electric flow control valve
CN112253842A (en) * 2020-11-03 2021-01-22 天生桥二级水力发电有限公司 Low-noise pressure reducing valve
CN113072965A (en) * 2021-04-23 2021-07-06 济南冶金化工设备有限公司 Pressure regulating valve device, pressure regulating system and pressure regulating method for carbonization chamber
CN113757405A (en) * 2021-11-09 2021-12-07 常州艾肯智造科技有限公司 Self-adjusting type temperature and pressure reducing regulating valve for high-pressure steam

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201348054Y (en) * 2008-12-21 2009-11-18 重庆川仪自动化股份有限公司 High-temperature steam governing valve
CN102563202A (en) * 2012-02-15 2012-07-11 中国神华能源股份有限公司 Fluid regulating valve
CN202418892U (en) * 2012-01-12 2012-09-05 西派集团有限公司 Pressure/noise reduction sleeve regulating valve
CN103672156A (en) * 2013-12-17 2014-03-26 吴忠中创自控阀有限公司 Multilevel throttling sleeve
CN103821979A (en) * 2014-02-25 2014-05-28 杭州杭氧工装泵阀有限公司 Multistage depressurization valve
CN204300382U (en) * 2014-12-02 2015-04-29 哈电集团哈尔滨电站阀门有限公司 High Pressure Difference multi-stage sleeve modulating valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201348054Y (en) * 2008-12-21 2009-11-18 重庆川仪自动化股份有限公司 High-temperature steam governing valve
CN202418892U (en) * 2012-01-12 2012-09-05 西派集团有限公司 Pressure/noise reduction sleeve regulating valve
CN102563202A (en) * 2012-02-15 2012-07-11 中国神华能源股份有限公司 Fluid regulating valve
CN103672156A (en) * 2013-12-17 2014-03-26 吴忠中创自控阀有限公司 Multilevel throttling sleeve
CN103821979A (en) * 2014-02-25 2014-05-28 杭州杭氧工装泵阀有限公司 Multistage depressurization valve
CN204300382U (en) * 2014-12-02 2015-04-29 哈电集团哈尔滨电站阀门有限公司 High Pressure Difference multi-stage sleeve modulating valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105952906A (en) * 2016-05-10 2016-09-21 应建忠 Labyrinth adjusting valve
CN109340449A (en) * 2018-11-13 2019-02-15 广东粤电靖海发电有限公司 A kind of multistage accumulation of energy buck configuration regulating valve
CN110375100A (en) * 2019-08-23 2019-10-25 开立基业（北京）阀门制造有限公司 Flow control valve and electric flow control valve
CN112253842A (en) * 2020-11-03 2021-01-22 天生桥二级水力发电有限公司 Low-noise pressure reducing valve
CN113072965A (en) * 2021-04-23 2021-07-06 济南冶金化工设备有限公司 Pressure regulating valve device, pressure regulating system and pressure regulating method for carbonization chamber
CN113757405A (en) * 2021-11-09 2021-12-07 常州艾肯智造科技有限公司 Self-adjusting type temperature and pressure reducing regulating valve for high-pressure steam

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PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: Hanan Hanan Industrial Park core area three road 150060 Heilongjiang city of Harbin province No. 6

Applicant after: Harbin Power Plant Valve Co., Ltd.

Address before: 150046 Xiangfang City, Harbin Province, the steel pad street, No., No. 1

Applicant before: Harbin Power Plant Valve Co., Ltd.

COR Change of bibliographic data
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150408