CN202252318U - Separated piston axial-flow type regulating valve - Google Patents

Separated piston axial-flow type regulating valve Download PDF

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Publication number
CN202252318U
CN202252318U CN2011204034367U CN201120403436U CN202252318U CN 202252318 U CN202252318 U CN 202252318U CN 2011204034367 U CN2011204034367 U CN 2011204034367U CN 201120403436 U CN201120403436 U CN 201120403436U CN 202252318 U CN202252318 U CN 202252318U
Authority
CN
China
Prior art keywords
valve
piston
ring
flow type
housed
Prior art date
Application number
CN2011204034367U
Other languages
Chinese (zh)
Inventor
汪新春
Original Assignee
江苏神通阀门股份有限公司
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 江苏神通阀门股份有限公司 filed Critical 江苏神通阀门股份有限公司
Priority to CN2011204034367U priority Critical patent/CN202252318U/en
Application granted granted Critical
Publication of CN202252318U publication Critical patent/CN202252318U/en

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Abstract

The utility model provides a separated piston axial-flow type regulating valve which comprises a valve body, a valve cover, a valve shaft, a valve base and a sealing ring, wherein the valve base is arranged between the valve body and valve cover; a cylindrical inner valve body is arranged in the inner cavity of the valve body; the inner valve body is internally provided with a guiding sleeve; a piston is arranged in the guiding sleeve; a plurality of O-shaped rings are arranged between the guiding sleeve and inner valve body as well as between the guiding sleeve and the piston; and a throttling ring is also provided and is connected to the piston through a fixed ring; the end part of the piston is provided with a sealing ring which forms a sealing pair together with the valve base; the valve shaft is provided with a swing arm; and a connecting rod is also provided and is connected with the swing arm and the fixed ring through a pin. The separated piston axial-flow type regulating valve has the beneficial effects that the valve is of an axial-flow type structure, thus the valve has low head loss and high flow capacity, completely avoids the phenomenon of cavitation and vibration and the like, and has long service life and high reliability.

Description

Split piston shaft streaming modulating valve

Technical field

The utility model relates to a kind of valving, particularly relates to a kind of modulating valve.

Background technique

China's modulating valve technology is through nearly 30 years introduction innovation and development; Very big progress has been arranged; But compare the also bigger gap of existence, problems such as the modulating valve ubiquity is stuck, vibration, noise is big, driving moment is excessive, reliability is low, the life-span is short with international most advanced level.The various modulating valve of in pipeline, using at present can bear big pressure, High Pressure Difference than difficulty basically like modulating valve such as Liquid level adjusting valve, reduction valve, safety check, flow control valve and reduction valve, are difficult to accomplish heavy caliber.The following problem of ubiquity:

1, the operation operating mode is restricted: when High Pressure Difference produced with big flow, traditional rotary-type modulating valve (like butterfly valve etc.) and straight journey modulating valve existence performance constraint to a certain degree were easy to generate noise, cavitation and oscillation phenomenon under given conditions.2, be prone to vibration: under high pressure, high-velocity flow effect, flow control valve very easily produces the strenuous vibration phenomenon, and is particularly to the control of high flow capacity fluid, very harmful in practical applications, even can cause serious broken ring to whole system.3, be prone to produce cavitation: the normal flow adjustable valve is because the relation of structure and working principle inevitably produces cavitation phenomenons under given conditions, and badly damaged valve and pipe-line equipment have shortened working life of modulating valve greatly.

Summary of the invention

There is stuck, vibration in existing modulating valve, noise is big, driving moment is excessive, reliability is low in order to overcome, be prone to vibration and produce short etc. the deficiency of cavitation, life-span, and the utility model provides a kind of split piston shaft streaming modulating valve.

It is a kind of split piston shaft streaming modulating valve that the utility model solves the technological scheme that its technical problem adopted, and comprises valve body, valve gap, valve shaft, valve seat, seal ring, between valve body and the valve gap valve seat is housed; Body cavity also has a tubular inner valve body, and guide sleeve is housed in the inner valve body, and piston is housed in the guide sleeve; Several O shape circle is housed between guide sleeve and inner valve body and the piston, also has a restrictor ring, restrictor ring is connected on the piston through retaining ring; Pistons end is equipped with seal ring, forms sealing pair with valve seat, and swing arm is housed on the valve shaft; Also have a connecting rod, connecting rod is connected through pin with swing arm, retaining ring.

The beneficial effect of the utility model is that valve adopts shaft flow structure, has low-head loss and high negotiability, avoids the generation of phenomenons such as cavitation, vibration fully, long service life, reliability height.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Fig. 1 is the tectonic maps of present embodiment

Fig. 2 is the plan view of Fig. 1

Among the figure: 1. valve body; 2. valve shaft; 3. inner valve body; 4. guide sleeve; 5.O shape circle; 6. valve seat; 7. seal ring; 8. restrictor ring; 9. sell; 10. connecting rod; 11. retaining ring; 12. swing arm; 13. piston; 14 valve gaps.

Embodiment

As illustrated in fig. 1 and 2, a kind of split piston shaft streaming modulating valve comprises valve body 1, valve gap 14, valve shaft 2, valve seat 6, seal ring 7; Between valve body 1 and the valve gap 14 valve seat 6 is housed, valve body 1 inner chamber also has a tubular inner valve body 3, and guide sleeve 4 is housed in the inner valve body 3; Piston 13 is housed in the guide sleeve 4, several O shape circle 5 is housed between guide sleeve 4 and inner valve body 3 and the piston 13, also have a periphery to be uniformly distributed with the restrictor ring 8 of bar-shaped trough; Restrictor ring 8 is connected on the piston 13 through retaining ring 11, and seal ring 7 is equipped with in piston 13 ends, forms sealing pair with valve seat 6; Swing arm 12 is housed on the valve shaft 2, also has a connecting rod 10, connecting rod 10 is connected through pin 9 with swing arm 12, retaining ring 11.

During work; When drive unit drives valve shaft 2, drive swing arm 12 and rotate, again through connecting rod 10 and retaining ring 11; Convert angular displacement into piston 13 along the axial straight-line displacement of inner valve body 3; Restrictor ring 8 changes orifice size along with piston 13 moves, thereby reaches the purpose of regulating rate-of flow or pressure.

Claims (1)

1. a split piston shaft streaming modulating valve comprises valve body, valve gap, valve shaft, valve seat, seal ring, between valve body and the valve gap valve seat is housed; It is characterized in that: described body cavity also has a tubular inner valve body, and guide sleeve is housed in the inner valve body, and piston is housed in the guide sleeve; Several O shape circle is housed between guide sleeve and inner valve body and the piston, also has a restrictor ring, restrictor ring is connected on the piston through retaining ring; Pistons end is equipped with seal ring, forms sealing pair with valve seat, on the described valve shaft swing arm is housed; Also have a connecting rod, connecting rod is connected through pin with swing arm, retaining ring.
CN2011204034367U 2011-10-15 2011-10-15 Separated piston axial-flow type regulating valve CN202252318U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204034367U CN202252318U (en) 2011-10-15 2011-10-15 Separated piston axial-flow type regulating valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204034367U CN202252318U (en) 2011-10-15 2011-10-15 Separated piston axial-flow type regulating valve

Publications (1)

Publication Number Publication Date
CN202252318U true CN202252318U (en) 2012-05-30

Family

ID=46113560

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011204034367U CN202252318U (en) 2011-10-15 2011-10-15 Separated piston axial-flow type regulating valve

Country Status (1)

Country Link
CN (1) CN202252318U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047476A (en) * 2011-10-15 2013-04-17 江苏神通阀门股份有限公司 Split piston axial-flow type regulating valve
CN103090019A (en) * 2013-02-06 2013-05-08 特瑞斯能源装备股份有限公司 Regulating valve of axial flow sleeve
CN107061777A (en) * 2016-02-10 2017-08-18 Vag阀门有限公司 Regulation or blocking device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047476A (en) * 2011-10-15 2013-04-17 江苏神通阀门股份有限公司 Split piston axial-flow type regulating valve
CN103090019A (en) * 2013-02-06 2013-05-08 特瑞斯能源装备股份有限公司 Regulating valve of axial flow sleeve
CN103090019B (en) * 2013-02-06 2015-04-01 特瑞斯能源装备股份有限公司 Regulating valve of axial flow sleeve
CN107061777A (en) * 2016-02-10 2017-08-18 Vag阀门有限公司 Regulation or blocking device
CN107061777B (en) * 2016-02-10 2020-08-04 Vag阀门有限公司 Adjusting or locking device

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120530

Termination date: 20191015

CF01 Termination of patent right due to non-payment of annual fee