CN203948678U - The box-like sealing configuration of a kind of valve sets - Google Patents

The box-like sealing configuration of a kind of valve sets Download PDF

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Publication number
CN203948678U
CN203948678U CN201420385752.XU CN201420385752U CN203948678U CN 203948678 U CN203948678 U CN 203948678U CN 201420385752 U CN201420385752 U CN 201420385752U CN 203948678 U CN203948678 U CN 203948678U
Authority
CN
China
Prior art keywords
valve
pull bar
packing
ring
valve pull
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 - Fee Related
Application number
CN201420385752.XU
Other languages
Chinese (zh)
Inventor
张寿根
萧亚兵
郑汝生
彭维峰
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.)
Zhejiang Gute Pneumatic Technology Co., Ltd.
Original Assignee
ZHEJIANG GUTE PNEUMATIC MACHINERY 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 ZHEJIANG GUTE PNEUMATIC MACHINERY CO Ltd filed Critical ZHEJIANG GUTE PNEUMATIC MACHINERY CO Ltd
Priority to CN201420385752.XU priority Critical patent/CN203948678U/en
Application granted granted Critical
Publication of CN203948678U publication Critical patent/CN203948678U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses the box-like sealing configuration of a kind of valve sets.It comprises hold-down grid, filler pressing sleeve, four layers of packing, dust ring, coupling, seal ring, spring, central ring, valve seat, valve pull bar; Central ring is connected with coupling bolt, coupling and valve pull bar Spielpassung, valve seat is connected with central ring bolt, valve seat is connected with dust ring bolt, four layers of packing and valve pull bar interference fit, filler pressing sleeve and valve pull bar Spielpassung, hold-down grid and valve pull bar Spielpassung, spring empty set on valve pull bar, seal ring and valve pull bar interference fit.The utility model not only intensity is high, heat-and corrosion-resistant, and antiscour, and friction factor is low, and self-lubricating property is good, and has very high flexibility, resilience and unsteady performance.This structure has improved the sealability of gate valve, and significantly reduces cylinder corrosion and stuck phenomenon, significantly promotes the working life of gate valve, effectively reduces practicality and the maintenance cost of valve.

Description

The box-like sealing configuration of a kind of valve sets
Technical field
The utility model relates to the box-like sealing configuration of a kind of valve sets, particularly for the sealing of double valve plates gate valve.
Background technique
Sealing is good Yu the bad major criterion of gate valve.In order to prevent being entered cylinder by the medium of choked flow along valve pull bar, cause corrosion and the obstruction of cylinder interior, thereby affect the normal use of gate valve, therefore, gate valve must be accomplished good sealing.
Conventionally, the sealing of gate valve is realized by seal ring and valve pull bar interference fit, but this encapsulating method is under the operating mode of high temperature, high-pressure medium, be easy to cause dielectric leakage and cause seal failure, and need to often change seal ring, make the maintenance cost of gate valve increase, these problems are perplexing user always.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of valve sets box-like sealing configuration.
The box-like sealing configuration of a kind of valve sets comprises hold-down grid, filler pressing sleeve, four layers of packing, dust ring, coupling, seal ring, spring, central ring, valve seat, valve pull bar; Central ring is connected with coupling bolt, coupling and valve pull bar Spielpassung, valve seat is connected with central ring bolt, valve seat is connected with dust ring bolt, four layers of packing and valve pull bar interference fit, filler pressing sleeve and valve pull bar Spielpassung, hold-down grid and valve pull bar Spielpassung, spring empty set on valve pull bar, seal ring and valve pull bar interference fit.
The first layer of four layers of described packing and the 4th layer of employing carbon fiber packing, the second layer adopts teflon packing, and the 3rd layer adopts flexible graphite stuffing.
The effect intentionally that the utility model compared with prior art has is, not only intensity is high can to ensure packing for sealing, heat-and corrosion-resistant, antiscour, and friction factor is low, and self-lubricating property is good, and there is very high flexibility, resilience and unsteady performance, the mixed fillers of Expanded graphite and teflon, has significantly improved anti-shearing, the tensility of packing, and is conducive to produce labyrinth effect.Being used in combination of four layers of packing and twice seal ring, has significantly improved the sealability of gate valve, and cylinder corrosion and stuck phenomenon greatly reduce, and have obviously increased the working life of gate valve, for user has saved maintenance cost greatly.
Brief description of the drawings
Fig. 1 is the schematic diagram of the box-like sealing configuration of valve sets;
In figure, hold-down grid 1, filler pressing sleeve 2, four layers of packing 3, dust ring 4, coupling 5, seal ring 6, spring 7, central ring 8, valve seat 9, valve pull bar 10.
Embodiment
As shown in Figure 1, the box-like sealing configuration of a kind of valve sets comprises hold-down grid 1, filler pressing sleeve 2, four layers of packing 3, dust ring 4, coupling 5, seal ring 6, spring 7, central ring 8, valve seat 9, valve pull bar 10; Central ring 8 is connected with coupling 5 bolts, coupling 5 and valve pull bar 10 Spielpassung, valve seat 9 is connected with central ring 8 bolts, valve seat 9 is connected with dust ring 4 bolts, four layers of packing 3 and valve pull bar 10 interference fit, filler pressing sleeve 2 and valve pull bar 10 Spielpassung, hold-down grid 1 and valve pull bar 10 Spielpassung, spring 7 empty sets on valve pull bar 10, seal ring 6 and valve pull bar 10 interference fit.
The first layer of four layers of described packing 3 and the 4th layer of employing carbon fiber packing, the second layer adopts teflon packing, and the 3rd layer adopts flexible graphite stuffing.
The box-like encapsulating method of valve sets of described structure is as follows:
Need the liquid, gas medium of sealing to leak through dust ring 4, four layers of packing 3, seal ring 6 successively along valve pull bar 10;
Dust ring 4 is connected with valve seat 9 bolts, and with valve pull bar 10 interference fit, stop liquid, the gas medium of leakage, realize sealing for the first time; Hold-down grid 1 and filler pressing sleeve 2 compress four layers of packing 3, and due to the effect of expanding with heat and contract with cold, spring 7 plays the effect that regulates impacting force, and four layers of packing 3 stop with valve pull bar 10 interference fit the liquid, the gas medium that penetrate dust ring 4, realize sealing for the second time; Seal ring 6 and valve pull bar 10 interference fit, stop the liquid, the gas medium that penetrate four layers of packing 3, realizes sealing for the third time; Conventionally this three leakage proof sealings, realize the liquid to needs sealing, the sealing of gas medium.

Claims (2)

1. the box-like sealing configuration of valve sets, is characterized in that comprising hold-down grid (1), filler pressing sleeve (2), four layers of packing (3), dust ring (4), coupling (5), seal ring (6), spring (7), central ring (8), valve seat (9), valve pull bar (10); Central ring (8) is connected with coupling (5) bolt, coupling (5) and valve pull bar (10) Spielpassung, valve seat (9) is connected with central ring (8) bolt, valve seat (9) is connected with dust ring (4) bolt, four layers of packing (3) and valve pull bar (10) interference fit, filler pressing sleeve (2) and valve pull bar (10) Spielpassung, hold-down grid (1) and valve pull bar (10) Spielpassung, spring (7) empty set is upper at valve pull bar (10), seal ring (6) and valve pull bar (10) interference fit.
2. the box-like sealing configuration of a kind of valve sets according to claim 1, the first layer of the four layers of packing (3) described in it is characterized in that and the 4th layer of employing carbon fiber packing, the second layer adopts teflon packing, and the 3rd layer adopts flexible graphite stuffing.
CN201420385752.XU 2014-07-14 2014-07-14 The box-like sealing configuration of a kind of valve sets Expired - Fee Related CN203948678U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420385752.XU CN203948678U (en) 2014-07-14 2014-07-14 The box-like sealing configuration of a kind of valve sets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420385752.XU CN203948678U (en) 2014-07-14 2014-07-14 The box-like sealing configuration of a kind of valve sets

Publications (1)

Publication Number Publication Date
CN203948678U true CN203948678U (en) 2014-11-19

Family

ID=51890715

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420385752.XU Expired - Fee Related CN203948678U (en) 2014-07-14 2014-07-14 The box-like sealing configuration of a kind of valve sets

Country Status (1)

Country Link
CN (1) CN203948678U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104089041A (en) * 2014-07-14 2014-10-08 浙江固特气动机械有限公司 Valve combined type sealing structure and method thereof
CN108692045A (en) * 2017-04-07 2018-10-23 嘉士凯国际有限责任公司 Seal assembly for industrial sluice valves and the valve including the seal assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104089041A (en) * 2014-07-14 2014-10-08 浙江固特气动机械有限公司 Valve combined type sealing structure and method thereof
CN108692045A (en) * 2017-04-07 2018-10-23 嘉士凯国际有限责任公司 Seal assembly for industrial sluice valves and the valve including the seal assembly

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: 324401 No. 18, Shao Lu, town, Quzhou Town, Longyou County, Zhejiang, China

Patentee after: Zhejiang Gute Pneumatic Technology Co., Ltd.

Address before: 324401 No. 18, Shao Lu, town, Quzhou Town, Longyou County, Zhejiang, China

Patentee before: Zhejiang Gute Pneumatic Machinery Co., Ltd.

C56 Change in the name or address of the patentee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141119

Termination date: 20190714

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