CN105697852A - Pneumatic slow-closing control device for butterfly valve - Google Patents
Pneumatic slow-closing control device for butterfly valve Download PDFInfo
- Publication number
- CN105697852A CN105697852A CN201610248647.5A CN201610248647A CN105697852A CN 105697852 A CN105697852 A CN 105697852A CN 201610248647 A CN201610248647 A CN 201610248647A CN 105697852 A CN105697852 A CN 105697852A
- Authority
- CN
- China
- Prior art keywords
- cavity
- inlet pipe
- air inlet
- butterfly valve
- piston
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Details Of Valves (AREA)
Abstract
The invention relates to a pneumatic slow-closing control device for a butterfly valve. The pneumatic slow-closing control device comprises an air inlet pipe, a first connecting pipeline, a second connecting pipeline and an air cylinder; an inner cavity is formed in the air cylinder; a piston is arranged in the inner cavity and divides the inner cavity into a first cavity and a second cavity; the piston extends towards the inside of the first cavity to form a piston rod for opening the butterfly valve when the piston moves towards the direction of the first cavity and closing the butterfly valve when the piston moves towards the direction of the second cavity; the first connecting pipeline is communicated with the first cavity; the second connecting pipeline is communicated with the second cavity; a one-way throttle valve for throttling gas in the second cavity when the piston moves towards the direction of the second cavity is also connected to the second cavity. The pneumatic slow-closing control device further comprises a solenoid valve for controlling the conduction between the air inlet pipe and the first connecting pipeline or the conduction between the air inlet pipe and the second connecting pipeline. With the adoption of the technical scheme, the invention provides the pneumatic slow-closing control device for the butterfly valve, and the pneumatic slow-closing control device is simple in structure and can better control the closing time of the butterfly valve.
Description
Technical field
The present invention relates to the pneumatic Slow Close of a kind of butterfly valve and control device。
Background technology
The pipeline that buffer butterfly valve is more advanced both at home and abroad at present controls equipment, is mainly installed on the exit of pump of all kinds of pumping plants such as water conservancy, electric power, plumbing, substitutes the function of check-valves and gate valve。During work, valve coordinates with pipeline main frame, can effectively eliminate pipeline water hammer, it is achieved the reliable cut-off of pipeline, plays the effect of protection pipe-line system safety。But, it being currently used for controlling the slow closing device of butterfly valve, its structure is complicated, it is impossible to control the butterfly valve shut-in time well。
Summary of the invention
The purpose of the present invention: in order to overcome the defect of prior art, the invention provides the pneumatic Slow Close of a kind of butterfly valve and controls device, its simple in construction, can control the butterfly valve shut-in time well。
Technical scheme: the pneumatic Slow Close of a kind of butterfly valve controls device, it is characterized in that: include air inlet pipe, first connecting line, second connecting line, cylinder, inner chamber it is provided with in cylinder, interior intracavity is provided with piston, inner chamber is separated into the first cavity by piston, second cavity, piston is extended with the piston rod for being opened by butterfly valve and closed by butterfly valve when piston is to the second cavity direction motion when piston is to the first cavity direction motion in the first cavity, first connecting line and the connection of the first cavity, second connecting line and the connection of the second cavity, second cavity is also associated with for when piston is to the second cavity direction of motion to the second cavity in the one-way throttle valve that throttles of gas, also include the electromagnetic valve for controlling air inlet pipe and the first connecting line conducting or air inlet pipe and the conducting of the second connecting line, electromagnetic valve is arranged on air inlet pipe and the first connecting line, between second connecting line。
Adopt technique scheme, when butterfly valve needs to open, source of the gas is passed into by air inlet pipe, electromagnetic valve controls air inlet pipe and the second connecting line conducting, gas enters and promotes piston to move to the first cavity direction in the second cavity, gas in first cavity is discharged through the first connecting line, thus being opened by butterfly valve through piston rod；When butterfly valve needs to cut out; electromagnetic valve controls air inlet pipe and the first connecting line conducting; gas enters in the first cavity; piston is promoted to move to the second cavity direction; gas in second cavity is discharged through the second connecting line; piston rod drives butterfly valve to realize quick closedown; now by one-way throttle valve, the gas in the second cavity can be carried out throttling buffering; realize the slowly closing of valve; so can carry out, by choke valve, the time that control valve is closed; eliminate the water hammer of pipeline, play the effect of protection pipe network system safety well。
The further setting of the present invention: described air inlet pipe is provided with pneumatic triple piece。
Adopt above-mentioned further setting, in pneumatics, air filter, air relief valve and three kinds of source of the gas treatment elements of oil sprayer are fitted together and are called pneumatic triple piece, gas source purification in order to enter pneumatic instrument filters and is decompressed to the bleed pressure that instrument supply is specified, thus ensureing the stability that source of the gas enters, also avoid the service behaviour of the impurity effect electromagnetic valve in source of the gas, cylinder, one-way throttle valve。
The further setting of the present invention: air inlet pipe is provided with the ball valve for controlling air inlet pipe switching。
Adopt and above-mentioned further arrange, it is possible in emergency situations, cut off air inlet pipe, uses safer, facilitate。
Accompanying drawing explanation
Fig. 1 is the structural representation of the specific embodiment of the invention。
Detailed description of the invention
As shown in Figure 1, the pneumatic Slow Close of a kind of butterfly valve controls device, include air inlet pipe 1, first connecting line 2, second connecting line 3, cylinder 4, it is provided with inner chamber in cylinder 4, interior intracavity is provided with piston 5, inner chamber is separated into the first cavity 411 by piston 5, second cavity 412, piston 5 is extended with the piston rod 6 for being opened by butterfly valve and closed by butterfly valve when piston 5 is to the second cavity 412 direction motion when piston 5 is to the first cavity 411 direction motion in the first cavity 411, first connecting line 2 connects with the first cavity 411, second connecting line 3 connects with the second cavity 412, second cavity 412 is also associated with for when piston 5 is to second cavity 412 direction of motion to the second cavity 412 in the one-way throttle valve 7 that throttles of gas, also include for control air inlet pipe 1 and the first connecting line 2 turns on or air inlet pipe 1 and the second connecting line 3 conducting electromagnetic valve 10, electromagnetic valve 10 is two-position-five-way solenoid valve, electromagnetic valve 10 is arranged on air inlet pipe 1 and the first connecting line 2, between second connecting line 3。Air inlet pipe is connected with the first port 101 of electromagnetic valve 10, and the first connecting line 2 is connected with the 4th port 104 of electromagnetic valve, and the second connecting line 3 is connected with the second port 102 of electromagnetic valve, and the 3rd port 103 of electromagnetic valve, fifth port 105 port are exhaust port。
In the specific embodiment of the invention, described air inlet pipe 1 is provided with pneumatic triple piece 8。In pneumatics, air filter, air relief valve and three kinds of source of the gas treatment elements of oil sprayer are fitted together and are called pneumatic triple piece, gas source purification in order to enter pneumatic instrument filters and is decompressed to the bleed pressure that instrument supply is specified, thus ensureing the stability that source of the gas enters, also avoid the service behaviour of the impurity effect electromagnetic valve in source of the gas, cylinder 4, one-way throttle valve 7。
In the specific embodiment of the invention, air inlet pipe 1 is provided with the ball valve 9 for controlling air inlet pipe 1 switching。So in emergency situations, air inlet pipe 1 can be cut off, uses safer, convenient。
When butterfly valve needs to open, source of the gas is passed into by air inlet pipe 1, the first port 101 and the second port 102 that control electromagnetic valve 10 turn on, 4th port 104 turns on fifth port 105, now air inlet pipe 1 and the second connecting line 3 turn on, gas enters in the second cavity 412 and promotes piston 5 to move to the first cavity 411 direction, gas in first cavity 411 is discharged through the fifth port 105 of the first connecting line 2, electromagnetic valve 10, thus butterfly valve being opened through piston rod 6, now, one-way throttle valve ends, and does not play throttling action；When butterfly valve needs to cut out, the first port 101 and the 4th port 104 that control electromagnetic valve turn on, second port 102 and the 3rd port 103 turn on, now, air inlet pipe 1 and the first connecting line 2 turn on, gas enters in the first cavity 411, piston 5 is promoted to move to the second cavity 412 direction, gas in second cavity 412 is through the second connecting line 3, 3rd port 103 of electromagnetic valve 10 is discharged, piston rod 6 drives butterfly valve to realize quick closedown, now by one-way throttle valve 7, the gas in second cavity 412 can be carried out throttling buffering, realize the slowly closing of valve, so can carry out, by choke valve, the time that control valve is closed, eliminate the water hammer of pipeline, play the effect of protection pipe network system safety well。
Claims (3)
1. the pneumatic Slow Close of a butterfly valve controls device, it is characterized in that: include air inlet pipe, first connecting line, second connecting line, cylinder, inner chamber it is provided with in cylinder, interior intracavity is provided with piston, inner chamber is separated into the first cavity by piston, second cavity, piston is extended with the piston rod for being opened by butterfly valve and closed by butterfly valve when piston is to the second cavity direction motion when piston is to the first cavity direction motion in the first cavity, first connecting line and the connection of the first cavity, second connecting line and the connection of the second cavity, second cavity is also associated with for when piston is to the second cavity direction of motion to the second cavity in the one-way throttle valve that throttles of gas, also include the electromagnetic valve for controlling air inlet pipe and the first connecting line conducting or air inlet pipe and the conducting of the second connecting line, electromagnetic valve is arranged on air inlet pipe and the first connecting line, between second connecting line。
2. the pneumatic Slow Close of butterfly valve according to claim 1 controls device, it is characterised in that: described air inlet pipe is provided with pneumatic triple piece。
3. the pneumatic Slow Close of butterfly valve according to claim 1 and 2 controls device, it is characterised in that: air inlet pipe is provided with the ball valve for controlling air inlet pipe switching。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610248647.5A CN105697852A (en) | 2016-04-20 | 2016-04-20 | Pneumatic slow-closing control device for butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610248647.5A CN105697852A (en) | 2016-04-20 | 2016-04-20 | Pneumatic slow-closing control device for butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105697852A true CN105697852A (en) | 2016-06-22 |
Family
ID=56217194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610248647.5A Pending CN105697852A (en) | 2016-04-20 | 2016-04-20 | Pneumatic slow-closing control device for butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105697852A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397632A (en) * | 2018-11-29 | 2019-03-01 | 浙江思纳克热流道科技有限公司 | Valve needle of hot runner control structure and its control method |
| CN110645361A (en) * | 2019-09-18 | 2020-01-03 | 大禹节水（天津）有限公司 | Exhaust butterfly valve |
| CN111828721A (en) * | 2020-07-28 | 2020-10-27 | 广西柳州钢铁集团有限公司 | Pneumatic butterfly valve control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2883823Y (en) * | 2006-03-03 | 2007-03-28 | 周唯逸 | Automatic reverser |
| CN201137709Y (en) * | 2007-08-15 | 2008-10-22 | 胜利油田胜利动力机械集团有限公司 | Large bore butterfly valve device |
| CN203770805U (en) * | 2014-03-27 | 2014-08-13 | 超达阀门集团股份有限公司 | Single-acting pneumatic device with adjustment and fault security functions |
| CN104100762A (en) * | 2014-07-23 | 2014-10-15 | 超达阀门集团股份有限公司 | Efficient pneumatic relief gate valve |
| CN205578856U (en) * | 2016-04-20 | 2016-09-14 | 正洲泵阀制造有限公司 | Controlling means is slowly closed in pneumatics of butterfly valve |
-
2016
- 2016-04-20 CN CN201610248647.5A patent/CN105697852A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2883823Y (en) * | 2006-03-03 | 2007-03-28 | 周唯逸 | Automatic reverser |
| CN201137709Y (en) * | 2007-08-15 | 2008-10-22 | 胜利油田胜利动力机械集团有限公司 | Large bore butterfly valve device |
| CN203770805U (en) * | 2014-03-27 | 2014-08-13 | 超达阀门集团股份有限公司 | Single-acting pneumatic device with adjustment and fault security functions |
| CN104100762A (en) * | 2014-07-23 | 2014-10-15 | 超达阀门集团股份有限公司 | Efficient pneumatic relief gate valve |
| CN205578856U (en) * | 2016-04-20 | 2016-09-14 | 正洲泵阀制造有限公司 | Controlling means is slowly closed in pneumatics of butterfly valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397632A (en) * | 2018-11-29 | 2019-03-01 | 浙江思纳克热流道科技有限公司 | Valve needle of hot runner control structure and its control method |
| CN110645361A (en) * | 2019-09-18 | 2020-01-03 | 大禹节水（天津）有限公司 | Exhaust butterfly valve |
| CN110645361B (en) * | 2019-09-18 | 2024-05-14 | 大禹节水（天津）有限公司 | Exhaust butterfly valve |
| CN111828721A (en) * | 2020-07-28 | 2020-10-27 | 广西柳州钢铁集团有限公司 | Pneumatic butterfly valve control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105697852A (en) | Pneumatic slow-closing control device for butterfly valve | |
| CN202326110U (en) | Combined admission valve of air compressor | |
| CN204226809U (en) | A kind of stop valve structure | |
| CN103470782A (en) | Right-angle type HTHP (High Temperature High Pressure) pulse-jet valve | |
| CN210013682U (en) | Ultrahigh-pressure large-drift-diameter multi-runner injection fracturing wellhead device | |
| CN205578856U (en) | Controlling means is slowly closed in pneumatics of butterfly valve | |
| CN201739592U (en) | Multifunctional reducing valve | |
| CN102410283B (en) | Hydraulic protection modular structure of servo actuator | |
| CN204345034U (en) | A kind of compressed natural gas guide electromagnetic valve | |
| CN102305296B (en) | Direct way electromagnetic control valve | |
| CN205559898U (en) | Controlling means is closed in delaying of check valve | |
| CN203560453U (en) | Straight-angle type high-temperature high-pressure pulse jetting valve | |
| CN204554008U (en) | Actuator and pneumatic valve | |
| CN204345038U (en) | Pneumatic valve control gear | |
| CN203718108U (en) | Pneumatic control operation module | |
| CN104074983B (en) | The two-way repid cut-off valve of self-powering type | |
| CN205036863U (en) | Piston water hammer pressure release main valve | |
| CN104806771A (en) | Pneumatic expansion butterfly valve | |
| CN205859268U (en) | The explosion-proof automatic reducing transformer of running water pipe | |
| CN2918908Y (en) | Straight-corner type explosion-proof electromagnetic valve for natural gas | |
| CN105736773A (en) | Slow closing control device of check valve | |
| CN202790657U (en) | Ball valve special for nitrogen-oxygen | |
| CN103899829B (en) | A kind of double-action Pneumatic actuator with adjustment and failure safe function | |
| CN103775725A (en) | Pneumatic control operation module | |
| CN108662208B (en) | Hydraulic control valve with symmetrical structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160622 |
|
| RJ01 | Rejection of invention patent application after publication |