CN204201116U - Moving sealing device is independent of the complete manual double seals butterfly valve of valve body - Google Patents

Moving sealing device is independent of the complete manual double seals butterfly valve of valve body Download PDF

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Publication number
CN204201116U
CN204201116U CN201420640399.5U CN201420640399U CN204201116U CN 204201116 U CN204201116 U CN 204201116U CN 201420640399 U CN201420640399 U CN 201420640399U CN 204201116 U CN204201116 U CN 204201116U
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China
Prior art keywords
valve
moving sealing
sealing
independent
butterfly valve
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Active
Application number
CN201420640399.5U
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Chinese (zh)
Inventor
狄词平
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CHINA VALVE TECHNOLOGY (CHANGSHA) VALVE CO LTD
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CHINA VALVE TECHNOLOGY (CHANGSHA) VALVE CO LTD
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Priority to CN201420640399.5U priority Critical patent/CN204201116U/en
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Abstract

The utility model discloses the complete manual double seals butterfly valve of a kind of moving sealing device independent of valve body, comprise valve body, described valve body is provided with moving sealing device, described moving sealing device and described valve body removably connect, described moving sealing device comprises and manually-operable can carry out screw rod and the hydrodynamic reciprocating sealing ring of movement, described hydrodynamic reciprocating sealing ring set is contained on above-mentioned screw rod, described screw rod is provided with the first adjusting nut and the second adjusting nut and the first adjusting nut and the second adjusting nut lay respectively at described hydrodynamic reciprocating sealing ring both sides.Moving sealing device disclosed in the utility model, independent of the complete manual double seals butterfly valve of valve body, has the advantage of being convenient to transport, structure is simple, cheap for manufacturing cost.

Description

Moving sealing device is independent of the complete manual double seals butterfly valve of valve body
Technical field
The utility model relates to a kind of butterfly valve, and particularly a kind of moving sealing device is independent of the complete manual double seals butterfly valve of valve body.
Background technique
Double seals butterfly valve is mainly used as hydroturbine water intake valve and penstock Protective valve.During as hydroturbine water intake valve, it is mainly with acting as: 1, water turbine have an accident and stator can not be closed time, dynamic water throttle down, current are blocked in emergency cut-off, prevent water turbine from flying to escape, guarantee unit safety; When compressor emergency shutdown is for subsequent use, throttle down, blocks current, prevents water wheels stator from leaking for a long time, has both reduced the water loss of energy, can prevent again in stator end face and the cavitation erosion of generation gap, facade place; During compressor emergency shutdown maintenance, hydrostatic throttle down, blocks current.During as penstock Protective valve, its Main Function is that when there is the situations such as explosion at penstock, current are blocked in emergency cut-off, and Accident prevention expands, and guarantees safety.
After butterfly valve runs certain time limit, because of the destruction of pipeline medium, air and silt etc. or butterfly valve seal rubber strip is aging etc. that many-sided reason causes butterfly valve to need examine and replace seal ring, for reducing water resource waste, therefore introduced concept and the technology of double seals butterfly valve, namely solve when butterfly valve primary seal needs maintenance, utilize water-driven systems force power that maintenance sealing is dropped into (without the need to the ducted water resources of emptying upstream pressure), can safety inspection or replacing butterfly valve primary seal.But there is the defect that physical dimension and weight cannot meet traffic condition in existing double seals butterfly valve.
Therefore, a kind of double seals butterfly valve being convenient to transport is provided to be the technical problem that those skilled in the art need solution badly.
Model utility content
The purpose of this utility model is to provide a kind of double seals butterfly valve being convenient to transport.
To achieve these goals, the utility model provides a kind of moving sealing device to comprise valve body independent of the complete manual double seals butterfly valve of valve body, described valve body is provided with moving sealing device, described moving sealing device and described valve body removably connect, described moving sealing device comprises and manually-operable can carry out screw rod and the hydrodynamic reciprocating sealing ring of movement, described hydrodynamic reciprocating sealing ring set is contained on above-mentioned screw rod, described screw rod is provided with the first adjusting nut and the second adjusting nut and the first adjusting nut and the second adjusting nut lay respectively at described hydrodynamic reciprocating sealing ring both sides.
Preferably, described screw rod to be moved by being rotated on valve body on described valve body by thread cartridge.
Compared with prior art, moving sealing device provided by the utility model has the following advantages independent of the complete manual double seals butterfly valve of valve body: moving sealing device and valve body are removably connected, thus make moving sealing device can independent of butterfly valve body, butterfly valve can freely be disintegrated or distinguish, by be designed to meet distinguish and disintegration be can disintegrating transportation, the difficulty of building site assembling is simultaneously low, does not affect product performance after assembling; And adopt full manual mode of operation moving sealing device, realize the input action of butterfly valve maintenance sealing, eliminate the drive system of hydrodynamic reciprocating sealing and optimize and simplify maintenance sealed member part and structure, making that double sealing structure is more simple, action is more reliable, manufacture cost is cheaper.
In sum, moving sealing device provided by the utility model has the advantage of being convenient to transport, structure is simple, cheap for manufacturing cost independent of the complete manual double seals butterfly valve of valve body.
Accompanying drawing explanation
Fig. 1 is a kind of moving sealing device that the utility model proposes structural representation independent of a kind of embodiment of the complete manual double seals butterfly valve of valve body.
Embodiment
The purpose of this utility model is to provide a kind of structure double seals butterfly valve simple, cheap for manufacturing cost.
The technical solution of the utility model is understood better in order to make those skilled in the art; below in conjunction with accompanying drawing, the utility model is described in detail; the description of this part is only exemplary and explanatory, should not have any restriction to protection domain of the present utility model.
Please refer to Fig. 1, in one embodiment, a kind of moving sealing device provided by the utility model is independent of the complete manual double seals butterfly valve of valve body, comprise valve body 1, described valve body 1 is provided with moving sealing device, described moving sealing device and described valve body 1 removably connect, described moving sealing device comprises and manually-operable can carry out screw rod 2 and the hydrodynamic reciprocating sealing ring of movement, described hydrodynamic reciprocating sealing ring set is contained on above-mentioned screw rod 2, described screw rod 2 is provided with the first adjusting nut 3 and the second adjusting nut 4 and the first adjusting nut 3 and the second adjusting nut 4 lay respectively at described hydrodynamic reciprocating sealing ring both sides, described screw rod 2 to be moved by being rotated on valve body 1 on described valve body 1 by thread cartridge.
Compared with prior art, the moving sealing device that the present embodiment provides has the following advantages independent of the complete manual double seals butterfly valve of valve body: by hydrodynamic reciprocating sealing structure independent of butterfly valve body, butterfly valve can freely be disintegrated or distinguish, by be designed to meet distinguish and disintegration be can disintegrating transportation, the difficulty of building site assembling is simultaneously low, does not affect product performance after assembling; And adopt full manual mode of operation hydrodynamic reciprocating sealing, realize the input action of butterfly valve maintenance sealing, eliminate water-driven system and optimize and simplify maintenance sealed member part and structure, make that double sealing structure is more simple, action is more reliable, manufacture cost is cheaper.
In sum, the moving sealing device that provides of the present embodiment has the advantage of being convenient to transport, structure is simple, cheap for manufacturing cost independent of the complete manual double seals butterfly valve of valve body.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation and another entity or control panel to separate, and not necessarily require or imply the relation or order that there is any this reality between these entities or operation, and, term " comprises ", " to comprise " or its any other variant is intended to contain comprising of nonexcludability, thus make the process comprising a series of key element, method, which key element article or equipment not only comprise, but also comprise other key elements clearly do not listed, or also comprise for this process, method, article or the intrinsic key element of equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising key element and also there is other identical element.
Apply specific case herein to set forth principle of the present utility model and mode of execution, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.The above is only preferred implementation of the present utility model, should be understood that, due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, under the prerequisite not departing from the utility model principle, some improvement, retouching or change can also be made, also above-mentioned technical characteristics can be combined by rights; These improve retouching, change or combination, or the design of model utility and technological scheme are directly applied to other occasion without improving, and all should be considered as protection domain of the present utility model.

Claims (2)

1. a moving sealing device is independent of the complete manual double seals butterfly valve of valve body, comprise valve body (1), it is characterized in that, (1) is provided with moving sealing device to described valve body, described moving sealing device and described valve body (1) removably connect, described moving sealing device comprises and manually-operable can carry out screw rod (2) and the hydrodynamic reciprocating sealing ring of movement, described hydrodynamic reciprocating sealing ring set is contained on above-mentioned screw rod (2), described screw rod (2) is provided with the first adjusting nut (3) and the second adjusting nut (4) and the first adjusting nut (3) and the second adjusting nut (4) lay respectively at described hydrodynamic reciprocating sealing ring both sides.
2. moving sealing device according to claim 1 is independent of the complete manual double seals butterfly valve of valve body, it is characterized in that, described screw rod (2) is upper and upper mobile by being rotated in valve body (1) at described valve body (1) by thread cartridge.
CN201420640399.5U 2014-10-28 2014-10-28 Moving sealing device is independent of the complete manual double seals butterfly valve of valve body Active CN204201116U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420640399.5U CN204201116U (en) 2014-10-28 2014-10-28 Moving sealing device is independent of the complete manual double seals butterfly valve of valve body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420640399.5U CN204201116U (en) 2014-10-28 2014-10-28 Moving sealing device is independent of the complete manual double seals butterfly valve of valve body

Publications (1)

Publication Number Publication Date
CN204201116U true CN204201116U (en) 2015-03-11

Family

ID=52659080

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420640399.5U Active CN204201116U (en) 2014-10-28 2014-10-28 Moving sealing device is independent of the complete manual double seals butterfly valve of valve body

Country Status (1)

Country Link
CN (1) CN204201116U (en)

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