CN202418891U - Low pressure bypass regulating valve - Google Patents

Low pressure bypass regulating valve Download PDF

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Publication number
CN202418891U
CN202418891U CN 201120563625 CN201120563625U CN202418891U CN 202418891 U CN202418891 U CN 202418891U CN 201120563625 CN201120563625 CN 201120563625 CN 201120563625 U CN201120563625 U CN 201120563625U CN 202418891 U CN202418891 U CN 202418891U
Authority
CN
China
Prior art keywords
valve
sleeve
low voltage
voltage bypass
valve seat
Prior art date
Application number
CN 201120563625
Other languages
Chinese (zh)
Inventor
徐海洋
Original Assignee
苏州德兰能源科技有限公司
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 苏州德兰能源科技有限公司 filed Critical 苏州德兰能源科技有限公司
Priority to CN 201120563625 priority Critical patent/CN202418891U/en
Application granted granted Critical
Publication of CN202418891U publication Critical patent/CN202418891U/en

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Abstract

The utility model discloses a low pressure bypass regulating valve which comprises a valve body, a valve cover, a valve core, a valve rod and a sleeve; wherein the sleeve is positioned in the valve body; the valve cover is fixed on the valve body and presses the sleeve; the lower part of the valve rod and the valve core are both positioned in the sleeve; the lower part of the valve rod is fixed with the upper part of the valve core; the bottom end of the sleeve is sealed and fixed at the top end of a valve seat; at least two windows are arranged on the sleeve, and a channel is arranged at one side of the valve body; the valve body is spherical; the valve seat is positioned in the valve body; the side surface of the bottom of the valve core is in seal contact with the upper part of the valve seat in an opening or closing way; and a noise reduction cage is arranged on the valve seat. The low pressure bypass regulating valve is simple in structure, small in vibration and low in noise and can run safely and stably.

Description

A kind of low voltage bypass modulating valve

Technical field

The utility model relates to a kind of modulating valve, particularly relates to a kind of low voltage bypass modulating valve.

Background technique

The bypath system device is a supplementary equipment important on the fired power generating unit steam turbine, and the reliability of bypath system equipment is bigger to power plant safety and economical operation influence.Low voltage bypass is an important component part of bypath system, and its performance directly has influence on bypath system, or even the operation of whole turbine system.And the restriction that receives the big harsh operating mode of High Pressure Difference, big flow and the temperature difference of the low voltage bypass of selling in the market, the performance of general low voltage bypass modulating valve is bad, and poor safety performance is vibrated more violently, and noise is bigger.

Summary of the invention

The utility model is accomplished in order to solve deficiency of the prior art, and it is stable that the purpose of the utility model provides a kind of simple in structure, security of operation, vibrates the low voltage bypass modulating valve less, that noise is low.

A kind of low voltage bypass modulating valve of the utility model comprises valve body, valve gap, spool, valve rod and sleeve, and said sleeve is positioned at said valve body; Said valve gap is fixed on the said valve body and is pressed on the said sleeve; Said stem lower portion and spool all are positioned at said sleeve, and the top of said stem lower portion and said spool is fixed, and it is characterized in that: the bottom end seal of said sleeve is fixed on the top of said valve seat; Offer at least two windows on the said sleeve; One side of said valve body is provided with passage, and said valve body is spherical, and said valve seat is positioned at said valve body; The bottom sides of said spool can open and close to sealing with said valve seat top and contacts, and the noise reduction cage is set on the said valve seat.

A kind of low voltage bypass modulating valve of the utility model can also be:

The wall thickness of said valve body equates.

Said window is a rectangle.

The window of said upper cartridge is a rectangle, and the window of said lower cartridge is elongated rectangle.

The window of said upper cartridge is crisscross arranged.

Said valve gap and said sleeve contacting point are provided with seal ring.

Said sleeve and said valve seat contacting point are provided with seal ring.

Said valve gap and said valve body pass through bolt.

A kind of low voltage bypass modulating valve of the utility model; Because the bottom end seal of said sleeve is fixed on the top of said valve seat, offers at least two windows on the said sleeve, a side of said valve body is provided with passage; Said valve body is spherical; Said valve seat is positioned at said valve body, and the bottom sides of said spool can open and close to sealing with said valve seat top and contacts, and the noise reduction cage is set on the said valve seat.Like this, the advantage that has in terms of existing technologies is that valve body is spherical, makes valve under HTHP, and is stressed even, can not produce localized stress, and therefore, Safety performance is high, vibration is smaller.And the noise that is arranged so that of noise reduction cage is reduced to below 85 decibels.

Description of drawings

A kind of low voltage bypass modulating valve of Fig. 1 the utility model embodiment sectional view.

A kind of low voltage bypass modulating valve of Fig. 2 the utility model embodiment sleeve sectional view.

The figure number explanation

1 ... Valve body 2 ... Seal ring 3 ... Valve seat

4 ... Sleeve 5 ... Spool 6 ... Valve rod

7 ... Valve gap 8 ... Window 9 ... Passage

10 ... The noise reduction cage

Embodiment

Fig. 1 and Fig. 2 below in conjunction with accompanying drawing do further explain to a kind of low voltage bypass modulating valve of the utility model.

A kind of low voltage bypass modulating valve of the utility model please refer to Fig. 1 and Fig. 2, comprises valve body 1, valve gap 7, spool 5, valve rod 6 and sleeve 4; Said sleeve 4 is positioned at said valve body 1, and said valve gap 7 is fixed on the said valve body 1 and is pressed on the said sleeve 4, and said valve rod 6 bottoms and spool 5 all are positioned at said sleeve 4; The top of said valve rod 6 bottoms and said spool 5 is fixed; The bottom end seal of said sleeve 4 is fixed on the top of said valve seat 3, offers at least two windows 8 on the said sleeve 4, and a side of said valve body 1 is provided with passage 9; Said valve body 1 is spherical; Said valve seat 3 is positioned at said valve body 1, and the bottom sides of said spool 5 can open and close to sealing with said valve seat 3 tops and contacts, and on the said valve seat 3 noise reduction cage 10 is set.Valve rod 6 moves up and down during use; Driving spool 5 moves up and down; And then unlatching or throttle down, when valve opening, spool 5 bottom sides contact releasing with the sealing on valve seat 3 tops; Fluid flows in the sleeve 4 through window 8 outside valve body 1, and then flows in the valve seat 3 (whether the PLSCONFM direction is correct).When valve closing, spool 5 its bottom sides under the effect of valve rod 6 contacts with the top seal of valve seat 3.Fluid can not flow in the valve seat 3 again.Like this, the advantage that has in terms of existing technologies is that valve body 1 is spherical, makes valve under HTHP, and is stressed even, can not produce localized stress, and therefore, Safety performance is high, vibration is smaller.And the noise that is arranged so that of noise reduction cage 10 is reduced to below 85 decibels.

A kind of low voltage bypass modulating valve of the utility model please refer to Fig. 1 and Fig. 2, can also be that the wall thickness of said valve body 1 equates in front on the basis of technological scheme.Valve body 1 setting such as wall thickness such as grade is in order to prevent when the warm alternation, makes that valve body 1 is inner to produce stress, and then prevents that effectively valve body 1 from cracking even ftracture.Can also be that said window 8 is rectangle.The advantage of rectangular window 8 is the negotiabilities that when reducing noise, can increase valve.Further optimized technical scheme is that the window 8 on said sleeve 4 tops is a rectangle, and the window 8 of said sleeve 4 bottoms is elongated rectangle.The advantage that is provided with like this is further to reduce noise and increase negotiability.Further optimized technical scheme is that the window 8 on said sleeve 4 tops is crisscross arranged.The advantage that is crisscross arranged is to flow out enough spaces for the cold and hot distortion of sleeve 4.

A kind of low voltage bypass modulating valve of the utility model please refer to Fig. 1 and Fig. 2, can also be that said valve gap 7 is provided with seal ring 2 with said sleeve 4 contacting points in front on the basis of technological scheme.Not directly to contact between valve gap 7 and the sleeve 4 like this; Seal ring 2 rear valve bodies 1 and sleeve 4 are set when alternating hot and cold; Play the effect of mutual compensation, overcome valve body 1 and the huge effect that sleeve 4 produces owing to amount of deformation is different, avoid sleeve 4 distortion and valve body 1 to pull.In addition, can also be that said sleeve 4 is provided with seal ring 2 with said valve seat 3 contacting points.So not merely can seal valve seat 3, can also compensate the distortion of each parts that the alternating hot and cold owing to fluid produces.In addition, can also be that said valve gap 7 passes through bolt with said valve body 1.Certainly can also adopt other modes to fix, the advantage of bolt is fairly simple, and fixing relatively more firm.

Above-mentionedly only several kinds of specific embodiments in the utility model are explained; But can not be as the protection domain of the utility model; Every equivalence variation of having done according to the design spirit in the utility model or modification or equal proportion are amplified or are dwindled etc., all should think the protection domain that falls into the utility model.

Claims (8)

1. a low voltage bypass modulating valve comprises valve body, valve gap, spool, valve rod and sleeve, and said sleeve is positioned at said valve body; Said valve gap is fixed on the said valve body and is pressed on the said sleeve; Said stem lower portion and spool all are positioned at said sleeve, and the top of said stem lower portion and said spool is fixed, and it is characterized in that: the bottom end seal of said sleeve is fixed on the top of said valve seat; Offer at least two windows on the said sleeve; One side of said valve body is provided with passage, and said valve body is spherical, and said valve seat is positioned at said valve body; The bottom sides of said spool can open and close to sealing with said valve seat top and contacts, and the noise reduction cage is set on the said valve seat.
2. a kind of low voltage bypass modulating valve according to claim 1 is characterized in that: the wall thickness of said valve body equates.
3. a kind of low voltage bypass modulating valve according to claim 1 is characterized in that: said window is a rectangle.
4. a kind of low voltage bypass modulating valve according to claim 3 is characterized in that: the window of said upper cartridge is a rectangle, and the window of said lower cartridge is elongated rectangle.
5. a kind of low voltage bypass modulating valve according to claim 4, it is characterized in that: the window of said upper cartridge is crisscross arranged.
6. according to claim 1 or 2 or 3 or 4 or 5 described a kind of low voltage bypass modulating valve, it is characterized in that: said valve gap and said sleeve contacting point are provided with seal ring.
7. according to claim 1 or 2 or 3 or 4 or 5 described a kind of low voltage bypass modulating valve, it is characterized in that: said sleeve and said valve seat contacting point are provided with seal ring.
8. according to claim 1 or 2 or 3 or 4 or 5 described a kind of low voltage bypass modulating valve, it is characterized in that: said valve gap and said valve body pass through bolt.
CN 201120563625 2011-12-29 2011-12-29 Low pressure bypass regulating valve CN202418891U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120563625 CN202418891U (en) 2011-12-29 2011-12-29 Low pressure bypass regulating valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120563625 CN202418891U (en) 2011-12-29 2011-12-29 Low pressure bypass regulating valve

Publications (1)

Publication Number Publication Date
CN202418891U true CN202418891U (en) 2012-09-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120563625 CN202418891U (en) 2011-12-29 2011-12-29 Low pressure bypass regulating valve

Country Status (1)

Country Link
CN (1) CN202418891U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104048051A (en) * 2013-03-14 2014-09-17 费希尔控制国际公司 Valve seat assemblies
WO2014159154A1 (en) * 2013-03-14 2014-10-02 Fisher Controls International Llc Valve seat apparatus for use with fluid valves
CN104976363A (en) * 2015-06-25 2015-10-14 北京奥盛兰石油技术服务有限公司 High-pressure valve
US9732873B2 (en) 2010-07-30 2017-08-15 Fisher Controls International Llc Valve seat apparatus for use with fluid valves

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9732873B2 (en) 2010-07-30 2017-08-15 Fisher Controls International Llc Valve seat apparatus for use with fluid valves
CN104048051A (en) * 2013-03-14 2014-09-17 费希尔控制国际公司 Valve seat assemblies
WO2014159156A2 (en) * 2013-03-14 2014-10-02 Fisher Controls International Llc Valve seat assemblies
WO2014159156A3 (en) * 2013-03-14 2014-12-24 Fisher Controls International Llc Valve seat assemblies
NO343195B1 (en) * 2013-03-14 2018-11-26 Fisher Controls Int Llc Valve seat apparatus for use with fluid valves
JP2016511378A (en) * 2013-03-14 2016-04-14 フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー Valve seat device for use with fluid valves
JP2016512311A (en) * 2013-03-14 2016-04-25 フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー Valve seat assembly
WO2014159154A1 (en) * 2013-03-14 2014-10-02 Fisher Controls International Llc Valve seat apparatus for use with fluid valves
AU2014241305B2 (en) * 2013-03-14 2017-12-07 Fisher Controls International Llc Valve seat apparatus for use with fluid valves
AU2014241307B2 (en) * 2013-03-14 2018-04-05 Fisher Controls International Llc Valve seat assemblies
RU2662263C2 (en) * 2013-03-14 2018-07-25 Фишер Контролз Интернешнел Ллс Valve seat apparatus for use with liquid valves
NO343562B1 (en) * 2013-03-14 2019-04-08 Fisher Controls Int Llc Valve seat assemblies
CN104976363A (en) * 2015-06-25 2015-10-14 北京奥盛兰石油技术服务有限公司 High-pressure valve

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: 215000 Suzhou Lake Industrial Park, Xiangcheng District Economic Development Zone, Jiangsu

Patentee after: SUZHOU DELAN ENERGY SCIENCE & TECHNOLOGY CORP., LTD.

Address before: Cao Hu Industrial Park of Xiangcheng Economic Development Zone, Suzhou City, Jiangsu province 215000

Patentee before: Suzhou Delan Energy Technology Co., Ltd.