CN2529038Y - Two-way gas stop valve set - Google Patents

Two-way gas stop valve set Download PDF

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Publication number
CN2529038Y
CN2529038Y CN 02210139 CN02210139U CN2529038Y CN 2529038 Y CN2529038 Y CN 2529038Y CN 02210139 CN02210139 CN 02210139 CN 02210139 U CN02210139 U CN 02210139U CN 2529038 Y CN2529038 Y CN 2529038Y
Authority
CN
China
Prior art keywords
valve
blind plate
plate
way cut
butterfly
Prior art date
Application number
CN 02210139
Other languages
Chinese (zh)
Inventor
余德平
刘立铮
白正修
Original Assignee
余德平
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 余德平 filed Critical 余德平
Priority to CN 02210139 priority Critical patent/CN2529038Y/en
Application granted granted Critical
Publication of CN2529038Y publication Critical patent/CN2529038Y/en

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Abstract

The utility model provides a two-way gas stop valve set, which comprises a butterfly valve, a blind valve and a corrugated pipe compensator, and is characterized in that the two-way gas stop valve set is an integrated structure consists of two paralleled distributed butterfly valves, and the corrugated pipe compensator and the blind valve mutually connected and positioned between the two butterfly valves. Two valve bodies of left and right of a blind plate are provided with provided a screw rod piece for axially shifted stretching and fastening of the valve body. The utility model has the characteristics that: when the fault or emergent repairing of the system is occurred, the stop can be rapidly and safely achieved under the condition that two sides of a communicating pipe are provided with pressure. The valve set has compact structure and small size.

Description

Two-way cut-out gas valve group
Technical field the utility model relates to a kind of two-way cut-out gas valve group, is mainly used in the various gas ductwork diconnected pipe-line systems cut-out coal gas medium that can be very convenient, quick, safe.
Background technique is particularly produced the local pipe networks of uninterrupted air feed in continuity in metallurgy, chemical industry, electric power, town gas pipe network, usually coal gas is carried and is adopted two pipelines source of the gas of ensuring public security each other, in the middle of two pipelines, lay some cross over pipes simultaneously and carry out two-way UNICOM, valve and blind plate are set in the middle of cross over pipe carry out the connected sum cut-out.When any one of two transmission ﹠ distribution pipelines brought out existing fault or system overhaul, the valve on connecting tube must cut off at once, to guarantee the normal transmission ﹠ distribution of another pipeline.
Usually the configuration valve has two kinds of modes on cross over pipe: one, unidirectional configuration, a butterfly valve, a blank-plate valve, a compensator, because connecting tube is not enough apart from short position, the mode of this unidirectional configuration is very dangerous, when system breaks down and needs maintenance the time must stop a main line of blind plate one side, make it to be in passive state and just can close butterfly valve after with coal gas diffusion and plug blind plate again.This mode is the dangerous quick while also can cause very big economic loss.Two, two-way configuration, two butterfly valves of configuration, a middle blank-plate valve, a compensator on connecting pipe, but there are a lot of drawbacks in this kind mode: (1) length dimension of cross over pipe in pipelining is difficult to possess this condition.(2) four single equipment will be contained on the cross over pipe respectively, and flange is many, and leakage point is also many, and the corresponding increase of potential faults that occurs.Overall dimension is big simultaneously, and the high-altitude application platform of corresponding configuration is also big, the engineering cost height.
The summary of the invention the purpose of this utility model is to provide a kind of compact structure, easy to operate, safe and reliable, cheap two-way cut-out gas valve group.
The purpose of this utility model is achieved in that a kind of two-way cut-out gas valve group, comprise butterfly valve, blank-plate valve, corrugated expansion joint, it is characterized in that this two-way cut-out gas valve group by two butterfly valves that be arranged in parallel be arranged between two butterfly valves and interconnective corrugated expansion joint and blank-plate valve are formed integrative-structure, two valve bodies are provided with the screw mandrel that can make valve body axial displacement strut and clamp about blind plate.The all driving mechanisms of this valve can be manual, also can be electronic, and also can adopt computer to concentrate telecontrol simultaneously.Corrugated expansion joint two ends valve bodies direct and both sides are integrally welded.The blind plate left side of blank-plate valve is provided with valve body, and the structure with the shared valve body of butterfly valve is adopted on its right side.The keying of blank-plate valve blind plate is to pass to arc gear ring on the blind plate by the output gear axle that explosion-proof Denso drives Worm gear case, opens and closes thereby make blind plate do 90 ° of half revolution.Strutting or clamping of blind plate left and right sides valve body is to drive Worm gear case by explosion-proof Denso to export the main transmission screw mandrel to, and passes in addition by the sprocket wheel chain that two rhizoid bars synchronize them operation, thereby left and right sides valve body is strutted or clamps.
Characteristics of the present utility model are:
1, breaks down or during emergency service, the utility model can all be to cut off quickly and safely under the pressure state in the cross over pipe both sides, guarantees that transmission and distribution network normally moves in system.
2, compact structure, the adpting flange interface has only a pair of, reduces the quantity of leakage point and flange to greatest extent.Improved the safety reliability of pipe network effectively.
3, volume is little, in light weight, the most suitable built on stilts laying, and the load that has alleviated support of pipelines, the size that the while has also reduced the high-altitude application platform has to greatest extent reduced engineering cost effectively.
4, design optimization, the shape uniqueness, simple structure, multiple functional.
5, easy to operate, switch is flexible, both can manually, also can dispose Denso and realize electronicly, can also adopt computer to concentrate telecontrol simultaneously.
Description of drawings Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the left TV structure schematic representation of Fig. 1.
Embodiment is described in further detail the utility model in conjunction with the accompanying drawings:
As shown in Figure 1 and Figure 2: two-way cut-out gas valve group is made of two butterfly valves that be arranged in parallel 2,8 and the corrugated expansion joint 3 between two butterfly valves, blank-plate valve 11.
The valve shaft that the open and close of left and right butterfly valve drive on the Worm gear case by anti-explosion electric device 1,7 is made the purpose that 90 ° of half revolution reaches open and close thereby drive butterfly plate.
Butterfly plate 12 sealing pairs adopt two eccentric asymmetric special-shaped spheres, are the line style sealing when being in sealing state, sealing pair material: 1Cr18Ni9Ti.
The welding of corrugated expansion joint 3 left ends between two butterfly valves and left butterfly valve, the other end is welded on the blank-plate valve left valve barrel, the about 40mm of nose balance amount of bellows, the axial displacement when being used for compensating two valve bodies and strutting and clamp.Bellows material: 1Cr18Ni9Ti.
The half garden gear ring that is passed on the blind plate by the output gear axle on the anti-explosion electric device 10 drive Worm gear cases when the fan-shaped blind plate 11 between two butterfly valves opens and closes makes blind plate do 90 ° of half revolution, reaches the purpose of open and close.The blind plate material is the 16MnR plating hard chromium on surface.Blind plate sealing loop material 4 is a butyronitrile rubber, is the wafer type sealing when being in sealing state.The blind plate left side is provided with valve body, is connected with bellows, and adopt and the shared valve body structure of butterfly valve on the right side.
Strutting and clamping of left and right sides valve body is to overlap the trapezoidal screw 5 and the trapezoidal nut 6 that are distributed on the valve body of the left and right sides by three to realize.Drive main transmission screw mandrel on the Worm gear cases, and, make the synchronous operation of three trapezoidal thread screw mandrels by anti-explosion electric device 9 during action, thereby left and right sides valve body is unclamped or clamp by 13 transmissions of sprocket wheel chain.
Programmed sequence of operations of the present utility model is:
(1) closes valve: when the valve group is in full-gear during proper functioning on pipe network, when in case system catastrophic discontinuityfailure occurs or needs emergency service, close left and right sides butterfly valve at first simultaneously, three trapezoidal screw synchronous operations on the valve body of the blind plate left and right sides strut left and right sides valve body then, close fan-shaped blind plate, and then clamp left and right sides valve body.Strutting and clamping of left and right sides valve body can manually also can be electronic.
(2) drive valve: at first strut left and right sides valve body and make fan-shaped blind plate rotate to fully open position, and then clamp left and right sides valve body, open left and right sides butterfly valve at last.
No matter the utility model is manual, electronic and interlock control in the whole operation process, and it is basic identical with the programmed sequence of operations of closing valve that it drives valve.

Claims (6)

1, a kind of two-way cut-out gas valve group, comprise butterfly valve, blank-plate valve, corrugated expansion joint, it is characterized in that this two-way cut-out gas valve group by two butterfly valves that be arranged in parallel be arranged between two butterfly valves and interconnective corrugated expansion joint and blank-plate valve are formed integrative-structure, two valve bodies are provided with the screw mandrel that can make valve body axial displacement strut and clamp about blind plate.
2, two-way cut-out gas valve group according to claim 1 is characterized in that all driving mechanisms of this valve can manually, also can be electronic, also can adopt computer to concentrate telecontrol simultaneously.
3, two-way cut-out gas valve group according to claim 1 is characterized in that: corrugated expansion joint two ends valve bodies direct and both sides are integrally welded.
4, two-way cut-out gas valve group according to claim 1 is characterized in that: described blank-plate valve, and its blind plate left side is provided with valve body, and adopt and the shared valve body structure of butterfly valve on the blind plate right side.
5, two-way cut-out gas valve group according to claim 1, the keying that it is characterized in that blind plate are to pass to arc gear ring on the blind plate by the output gear axle that explosion-proof Denso drives Worm gear case, open and close thereby make blind plate do 90 ° of half revolution.
6, two-way cut-out gas valve group according to claim 1, it is characterized in that blind plate left and right sides valve body to strut or clamp be to export the main transmission screw mandrel to by what explosion-proof Denso drove Worm gear case, and pass in addition by the sprocket wheel chain that two rhizoid bars synchronize them operation, thereby left and right sides valve body is strutted or clamps.
CN 02210139 2002-02-04 2002-02-04 Two-way gas stop valve set CN2529038Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02210139 CN2529038Y (en) 2002-02-04 2002-02-04 Two-way gas stop valve set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02210139 CN2529038Y (en) 2002-02-04 2002-02-04 Two-way gas stop valve set

Publications (1)

Publication Number Publication Date
CN2529038Y true CN2529038Y (en) 2003-01-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 02210139 CN2529038Y (en) 2002-02-04 2002-02-04 Two-way gas stop valve set

Country Status (1)

Country Link
CN (1) CN2529038Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102878822A (en) * 2012-10-24 2013-01-16 辽宁环宇环保技术有限公司 Device and method for purifying and recycling furnace gas of hermetic ore smelting furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102878822A (en) * 2012-10-24 2013-01-16 辽宁环宇环保技术有限公司 Device and method for purifying and recycling furnace gas of hermetic ore smelting furnace
CN102878822B (en) * 2012-10-24 2015-06-10 辽宁环宇环保科技股份有限公司 Device and method for purifying and recycling furnace gas of hermetic ore smelting furnace

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Addressee: Yu Deping

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C57 Notification of unclear or unknown address
CF01 Termination of patent right due to non-payment of annual fee
C19 Lapse of patent right due to non-payment of the annual fee