CN204878769U - High pressure gas piping butterfly valve - Google Patents

High pressure gas piping butterfly valve Download PDF

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Publication number
CN204878769U
CN204878769U CN201520642853.5U CN201520642853U CN204878769U CN 204878769 U CN204878769 U CN 204878769U CN 201520642853 U CN201520642853 U CN 201520642853U CN 204878769 U CN204878769 U CN 204878769U
Authority
CN
China
Prior art keywords
valve
butterfly valve
soft
dish
pressing plate
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
CN201520642853.5U
Other languages
Chinese (zh)
Inventor
余金立
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.)
Guogong Valve Co Ltd
Original Assignee
Guogong 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 Guogong Valve Co Ltd filed Critical Guogong Valve Co Ltd
Priority to CN201520642853.5U priority Critical patent/CN204878769U/en
Application granted granted Critical
Publication of CN204878769U publication Critical patent/CN204878769U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a high pressure gas piping butterfly valve, including valve body, valve rod, dish board, sealing device and rotating device, the dish board passes through the valve rod to be installed on the valve body, and the valve rod is connected in rotating device, and sealing device passes through the clamp plate and fixes in the recess of dish board its characterized in that: the clamp plate pass through the screw connection in dish board and clamp plate for the mobile setting in the screw direction of dish board, clamp plate and dish board between set up compression spring, sealing device include to open to paste respectively under the state at the butterfly valve and stack the setting in the stereoplasm sealing washer of dish board and clamp plate and soft sealing washer and both, soft sealing washer and stereoplasm sealing washer between form the deformation clearance that is used for soft sealing washer to warp, when the butterfly valve cuts out pressure medium drive clamp plate make soft sealing washer warp carry on soft sealed, a problem for solving current butterfly valve can appear sealedly not enough when using on gas piping.

Description

High pressure gas pipeline butterfly valve
Technical field
The utility model relates to a kind of butterfly valve, particularly relates to a kind of gas pipe line butterfly valve.
Background technique
In the industrial production, the change of a lot of process parameter is that the type of valve is determined by the size of the type of medium, ducted pressure and temperature and pipeline by regulating the aperture of valve on pipeline to realize; In actual use, valve can because a lot of reasons causes spool action abnormal.The operating mode that the feature that butterfly valve is rapid with open-close convenient, fluid resistance is little is widely used in pipeline pressure and temperature is lower, pipe diameter is larger; the butterfly valve used on gas pipe line at present; usually there will be because coal gas accumulates in the junction of valve seat and flap with dust; cause the problem of valve opening and closing difficulty; increase the torsion that valve rod is subject to; reduce the working life of equipment, increase the human and material resources safeguarded and drop into.
Model utility content
Based on the problems referred to above, the utility model object is to provide a kind of high pressure gas pipeline butterfly valve, there will be the not enough problem of sealing for solving when existing butterfly valve uses on gas pipe line.
For above problem, provide following technological scheme: high pressure gas pipeline butterfly valve, comprise valve body, valve rod, dish plate, seal arrangement and slewing gear, dish plate is arranged on valve body by valve rod, valve rod is connected to slewing gear, seal arrangement is fixed in the groove of dish plate by pressing plate, it is characterized in that: described pressing plate be connected by screw in dish plate and pressing plate relative to the movable setting on screw orientation of dish plate, between described pressing plate and dish plate, Compress Spring is set, described seal arrangement is affixed on the hard sealing ring of dish plate and pressing plate and soft seal ring under being included in butterfly valve opening state respectively and both stack setting, the deformation gap being used for soft sealed ring deformation is formed between described soft seal ring and hard sealing ring, when butterfly valve cuts out, pressure medium drives pressing plate to make soft sealed ring deformation carry out soft sealing.
The utility model is set to further, arranges sealing axle sleeve between described valve rod and valve seat.
The beneficial effects of the utility model: form deformation gap between soft seal ring and hard sealing ring under butterfly valve opening state, when butterfly valve cuts out, the pressure medium of high pressure gas drives pressing plate to make soft sealed ring deformation, the stable inwall being squeezed in valve body more can be sealed after soft sealed ring deformation, again during opened butterfly valve, Compress Spring drives dish plate to carry out resilience, soft seal ring realizes automatically replying, the wearing and tearing of soft seal ring can not be caused, the cooperation of soft seal ring and hard sealing ring can advantageously in the sealing of seal arrangement, prevent gas leakage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment mesohigh gas pipe line butterfly valve;
Fig. 2 is the structural representation of Fig. 1 at A place partial enlargement.
Number in the figure implication: 1-valve body; 11-valve seat; 2-valve rod; 3-dish plate; 4-slewing gear; 5-sealing axle sleeve; 6-pressing plate; 7-seal arrangement; The soft seal ring of 71-; 72-hard sealing ring; 73-deformation gap; 8-screw; 9-Compress Spring.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
As shown in Figures 1 and 2, high pressure gas pipeline butterfly valve, comprise valve body 1, valve rod 2, dish plate 3, seal arrangement 7 and slewing gear 4, valve body 1 comprises the valve seat 11 corresponding with dish version, dish plate 3 is arranged on valve body 1 by valve rod 2, sealing axle sleeve 5 is set between valve rod 2 and valve seat 11, valve rod 2 is connected to slewing gear 4, this slewing gear 4 can be the manual rotating device 4 in the present embodiment, also can be pneumatic other modes such as grade, seal arrangement 7 is fixed in the groove of dish plate 3 by pressing plate 6, pressing plate 6 be connected to dish plate 3 by screw 8 and pressing plate 6 relative to dish plate 3 movable setting on screw 8 direction, Compress Spring 9 is set between pressing plate 6 and dish plate 3, seal arrangement 7 is affixed on the hard sealing ring 72 of dish plate 3 and pressing plate 6 and soft seal ring 71 under being included in butterfly valve opening state respectively and both stack setting, described soft seal ring 71 and hard seal the deformation gap 73 being formed between Figure 72 and be out of shape for soft seal ring 71, when butterfly valve cuts out, pressure medium drives pressing plate 6 to make the distortion of soft seal ring 71 carry out soft sealing.
Working principle of the present utility model: form deformation gap 73 between soft seal ring 71 and hard sealing ring 72 under butterfly valve opening state, when butterfly valve cuts out, the pressure medium of high pressure gas drives pressing plate 6 that soft seal ring 71 is out of shape, soft seal ring 71 can seal the stable inwall being squeezed in valve body 1 after being out of shape more, again during opened butterfly valve, Compress Spring 9 drives dish plate 3 to carry out resilience, soft seal ring 71 realizes automatically replying, the wearing and tearing of soft seal ring 71 can not be caused, the cooperation of soft seal ring 71 and hard sealing ring 72 can advantageously in the sealing of seal arrangement 7, prevent gas leakage.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improvement of above-mentioned hypothesis and modification also should be considered as protection domain of the present utility model.

Claims (2)

1. high pressure gas pipeline butterfly valve, comprise valve body, valve rod, dish plate, seal arrangement and slewing gear, dish plate is arranged on valve body by valve rod, valve rod is connected to slewing gear, seal arrangement is fixed in the groove of dish plate by pressing plate, it is characterized in that: described pressing plate be connected by screw in dish plate and pressing plate relative to the movable setting on screw orientation of dish plate, between described pressing plate and dish plate, Compress Spring is set, described seal arrangement is affixed on the hard sealing ring of dish plate and pressing plate and soft seal ring under being included in butterfly valve opening state respectively and both stack setting, the deformation gap being used for soft sealed ring deformation is formed between described soft seal ring and hard sealing ring, when butterfly valve cuts out, pressure medium drives pressing plate to make soft sealed ring deformation carry out soft sealing.
2. high pressure gas pipeline butterfly valve according to claim 1, is characterized in that: arrange sealing axle sleeve between described valve rod and valve seat.
CN201520642853.5U 2015-08-19 2015-08-19 High pressure gas piping butterfly valve Expired - Fee Related CN204878769U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520642853.5U CN204878769U (en) 2015-08-19 2015-08-19 High pressure gas piping butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520642853.5U CN204878769U (en) 2015-08-19 2015-08-19 High pressure gas piping butterfly valve

Publications (1)

Publication Number Publication Date
CN204878769U true CN204878769U (en) 2015-12-16

Family

ID=54823143

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520642853.5U Expired - Fee Related CN204878769U (en) 2015-08-19 2015-08-19 High pressure gas piping butterfly valve

Country Status (1)

Country Link
CN (1) CN204878769U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107654673A (en) * 2017-10-30 2018-02-02 东华工程科技股份有限公司 HTHP three eccentric metal sealed butterfly valve
CN114263751A (en) * 2021-12-11 2022-04-01 李岸隆 Scour prevention butterfly valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107654673A (en) * 2017-10-30 2018-02-02 东华工程科技股份有限公司 HTHP three eccentric metal sealed butterfly valve
CN114263751A (en) * 2021-12-11 2022-04-01 李岸隆 Scour prevention butterfly valve

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Legal Events

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

Granted publication date: 20151216

Termination date: 20190819

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