CN205937882U - Pneumatic quick closing valve butterfly valve of jumbo size - Google Patents

Pneumatic quick closing valve butterfly valve of jumbo size Download PDF

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Publication number
CN205937882U
CN205937882U CN201620986719.1U CN201620986719U CN205937882U CN 205937882 U CN205937882 U CN 205937882U CN 201620986719 U CN201620986719 U CN 201620986719U CN 205937882 U CN205937882 U CN 205937882U
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CN
China
Prior art keywords
valve
pneumatic
way
butterfly
gas
Prior art date
Application number
CN201620986719.1U
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Chinese (zh)
Inventor
靖金桃
吴武涛
江木安
曹文杰
胡昌
潘敏
Original Assignee
湖北高中压阀门有限责任公司
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Application filed by 湖北高中压阀门有限责任公司 filed Critical 湖北高中压阀门有限责任公司
Priority to CN201620986719.1U priority Critical patent/CN205937882U/en
Application granted granted Critical
Publication of CN205937882U publication Critical patent/CN205937882U/en

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Abstract

The utility model relates to a butterfly valve, high pressure valve field in belonging to, concretely relates to pneumatic quick closing valve butterfly valve of jumbo size. Include: the pneumatic means who links to each other with the valve rod, pneumatic means includes: pneumatic actuator, pneumatic actuator and two your two -port valves link to each other, you control the valve by two -port valve series connection two -position three way gas, two -position three way rolls up the valve. Therefore, the utility model has the advantages of as follows: 1. Reasonable in design, simple structure, with low costs and complete practicality, 2. Can safe and reliable and the quick closing valve operation of stable realization butterfly valve.

Description

A kind of pneumatic rapid cut-off butterfly valves of large scale

Technical field

This utility model is related to a kind of butterfly valve, belongs to valve field and in particular to a kind of pneumatic rapid cut-off butterfly valves of large scale.

Background technology

Mainly butterfly valve quick closing valve is realized using the single-acting pneumatic means of spring reset in prior art.But single-acting gas Spring in dynamic device is easily tired, takes up room big, high cost, and the hoisting capacity of large scale butterfly valve is big, use environment ratio Relatively badly it is difficult to meet quick closing valve requirement.

Utility model content

This utility model is mainly the butterfly valve solving existing for prior art and is difficult to meet the technical problem that quick closing valve requires, and carries A kind of pneumatic rapid cut-off butterfly valves of large scale are supplied.This butterfly valve be connected with main valve from double acting pneumatic means and coordinate aircontrolled element from And the quick closing valve operation realizing butterfly valve that can be safe and reliable and stable.

Above-mentioned technical problem of the present utility model is mainly addressed by following technical proposals:

A kind of pneumatic rapid cut-off butterfly valves of large scale, including:Main valve, the double acting pneumatic means being connected with main valve valve rod and gas control Element.Described aircontrolled element includes two two position two-way valves being connected with double acting pneumatic means;Described two position two-way valve is successively Connect two-position five-way valve, two-position three way magnetic valve;Described two-position five-way valve processes three linked piece with source of the gas and is connected;Described source of the gas is processed Three linked piece is communicated with source of the gas.

Optimize, a kind of above-mentioned pneumatic rapid cut-off butterfly valves of large scale, at least one two position two-way valve and two-position five-way valve it Between be connected with rapid escape valve.

Optimize, a kind of above-mentioned pneumatic rapid cut-off butterfly valves of large scale, described two position two-way valve is normal open state.

Optimize, a kind of above-mentioned pneumatic rapid cut-off butterfly valves of large scale, being provided with cylinder in described double acting pneumatic means has Rod cavity and cylinder rodless cavity;

Optimize, a kind of above-mentioned pneumatic rapid cut-off butterfly valves of large scale, described main valve includes:Valve body, is installed on the axle of valve body Valve rod in set;It is provided with butterfly plate on described valve rod, described butterfly plate is provided with pressing plate.

Therefore, this utility model has the advantage that:1. reasonable in design, structure is simple, takes up room little, low cost and complete Entirely practical;2. the quick closedown realizing butterfly valve that hoisting capacity is little, safe and reliable and stable.

Brief description

Fig. 1 is pneumatic schematic diagram during the fast quick-closing valve of electromagnetic valve power failure state of the present utility model.

Fig. 2 is the pneumatic schematic diagram that electromagnetic valve of the present utility model obtains during electricity condition valve opening.

During state that Fig. 3 is electromagnetic valve dead electricity of the present utility model and system is died, valve protects the pneumatic schematic diagram of position.

Fig. 4 be electromagnetic valve of the present utility model obtain electric and system die state when valve protect the pneumatic schematic diagram of position.

Fig. 5 is large scale Pneumatic butterfly valve schematic diagram of the present utility model.

Specific embodiment

Below by embodiment, and combine accompanying drawing, the technical solution of the utility model is described in further detail.Figure In, source of the gas processes three linked piece 1, two-position three way magnetic valve 2, two-position five-way valve 3, two position two-way valve 4, mechanical type limit switch 5, fast Fast air bleeding valve 6, main valve 7, hex bolts 7.1, end cap 7.2, pad 7.3, divided ring 7.4, valve body 7.5, valve rod 7.6, sealing ring 7.7th, pressing plate 7.8, butterfly plate 7.9, taper pin 7.10, hexagon socket cap head screw 7.11, bushing 7.12, Packing seat 7.13, filler 7.14th, gland 7.15, the first studs 7.16, the first hex nut 7.17, support 7.18, general flat key 7.19, six Hex bolt 7.20, flat shim 7.21, double acting pneumatic means 7.22, cylinder have cylinder chamber 7.22.1, cylinder no cylinder chamber 7.22.2, Straight pin 7.23, the second hex nut 7.24, the second studs 7.25.

Embodiment:

It is less than the quick closing's time of 0.5S in order to ensure that main valve meets in the case of double acting pneumatic means and it is necessary to expire Sufficient power-off quick closing valve, guarantor's bit function of dying, the present embodiment is different with prior art in the selection of aircontrolled element and electromagnetic valve.

Large scale Pneumatic butterfly valve is using the double acting pneumatic means being connected with main valve valve rod, two-position three way magnetic valve, machinery Formula limit switch, before two-position three way magnetic valve one two-position five-way valve of series connection as the power source of Pneumatic butterfly valve, this two three Three-way electromagnetic valve often-have-electricity, the ability dead electricity when there being accident, during two-position three way magnetic valve dead electricity, valve quick closing valve, simultaneously pneumatic in double acting Shutdown side one rapid escape valve of series connection of device more reliably ensures quick closing's time.

The gas control operation principle of the present embodiment is described as follows:Connect one two two in the import and export of double acting pneumatic means Port valve, under normality, this two position two-way valve is used as passage, when dying suddenly, the spring of two position two-way valve and the gas being trapped in cylinder Body reaches balance and makes main valve keep position when dying.So only need to be with a two-position five-way valve, a two-position three-way electromagnetic Valve, two two position two-way valves, a rapid escape valve can meet quick closing's time, dead electricity quick closing valve and these functions of guarantor position of dying.

The effect of each element of the present embodiment and function are as follows:

Source of the gas processes three linked piece 1:Its effect is that the moisture content filtering in source of the gas carries out voltage stabilizing, to control element and double to source of the gas Filling lubricating oil in acting pneumatic device.

Two-position three way magnetic valve 2:To enter double acting pneumatic means in source of the gas carry out switch operation, with realize valve opening or Fast quick-closing valve.

Two position two-way valve 4:For cutting off source of the gas path after dying.

Mechanical type limit switch 5:For detecting the open/close states of main valve;

Rapid escape valve 6:In main valve switch operation, the quick gas discharged in cylinder, realize the quick closedown of main valve.

After said structure, operation principle of the present utility model is as follows:

Fast quick-closing valve:When the unexpected power-off of system, two-position three way magnetic valve dead electricity simultaneously commutates, and source of the gas is from two-position five-way valve Another chamber enters, and now the air in cylinder quickly discharged by rapid escape valve, and Reliable guarantee quick closing's time is less than 0.5S, and source of the gas enters Enter two position two-way valve 4, the cylinder entering back into double acting pneumatic means has cylinder chamber 7.22.1, promotes the motion that valve makees 90 ° to 0 °, Make main valve quick closedown.Specifically as shown in Figure 1.

Valve opening:Source of the gas carries out source of the gas process by pneumatic triple piece, enters two-position five-way valve, now two-position three way magnetic valve Obtain electric work, two-position five-way valve keeps unimpeded state, enters back into two position two-way valve, has two position two-way valve during gas to be normal open, then Enter the cylinder no cylinder chamber 7.22.2 of double acting pneumatic means, driving main valve to make 0 ° to 90 ° motion makes main valve open.Concrete such as figure Shown in 2.

Die and protect position:System is died suddenly dead electricity or when dying electric, and the valve element of two position two-way valve is withstood by spring, makes two Position two-port valve cuts out, and now the residual air of double acting pneumatic means is trapped in pneumatic means makes piston can not move, now pneumatic Device can not drive main valve to move, and at this moment main valve is maintained for the state before dying, and be in and be relatively stably maintained at original position, tool Body is as shown in figs. 34.

Specific embodiment described herein is only explanation for example to this utility model spirit.This utility model institute Belong to those skilled in the art described specific embodiment can be made with various modifications or supplement or using similar Mode substitute, but without departing from of the present utility model spirit or surmount scope defined in appended claims.

Claims (5)

1. the pneumatic rapid cut-off butterfly valves of a kind of large scale, including:Main valve, the double acting pneumatic means being connected with main valve valve rod and gas control unit Part;Described aircontrolled element includes two two position two-way valves (4) being connected with double acting pneumatic means;Described two position two-way valve (4) It is sequentially connected two-position five-way valve (3), two-position three way magnetic valve (2);Described two-position five-way valve (3) processes three linked piece (1) with source of the gas It is connected;Described source of the gas is processed three linked piece (1) and is communicated with source of the gas.
2. the pneumatic rapid cut-off butterfly valves of a kind of large scale according to claim 1 are it is characterised in that at least one two position two-way valve (4) it is connected with rapid escape valve (6) and two-position five-way valve (3) between.
3. the pneumatic rapid cut-off butterfly valves of a kind of large scale according to claim 1 are it is characterised in that described two position two-way valve (4) For normal open state.
4. the pneumatic rapid cut-off butterfly valves of a kind of large scale according to claim 1 are it is characterised in that described double acting pneumatic means Inside it is provided with cylinder rod chamber and cylinder rodless cavity.
5. a kind of pneumatic rapid cut-off butterfly valves of large scale according to claim 1 are it is characterised in that described main valve includes:Valve body, It is installed on the valve rod in the axle sleeve of valve body;It is provided with butterfly plate on described valve rod, described butterfly plate is provided with pressing plate.
CN201620986719.1U 2016-08-30 2016-08-30 Pneumatic quick closing valve butterfly valve of jumbo size CN205937882U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620986719.1U CN205937882U (en) 2016-08-30 2016-08-30 Pneumatic quick closing valve butterfly valve of jumbo size

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620986719.1U CN205937882U (en) 2016-08-30 2016-08-30 Pneumatic quick closing valve butterfly valve of jumbo size

Publications (1)

Publication Number Publication Date
CN205937882U true CN205937882U (en) 2017-02-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620986719.1U CN205937882U (en) 2016-08-30 2016-08-30 Pneumatic quick closing valve butterfly valve of jumbo size

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107061765A (en) * 2017-03-24 2017-08-18 西安陕鼓汽轮机有限公司 A kind of steam turbine quick-closing valve
CN107606297A (en) * 2017-09-06 2018-01-19 武汉钢铁集团气体有限责任公司 A kind of operated pneumatic valve system and air cleaning unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107061765A (en) * 2017-03-24 2017-08-18 西安陕鼓汽轮机有限公司 A kind of steam turbine quick-closing valve
CN107606297A (en) * 2017-09-06 2018-01-19 武汉钢铁集团气体有限责任公司 A kind of operated pneumatic valve system and air cleaning unit
CN107606297B (en) * 2017-09-06 2020-01-21 武汉钢铁集团气体有限责任公司 Pneumatic valve system and air purification device

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