CN209876105U - Dome valve air control device with time delay control - Google Patents
Dome valve air control device with time delay control Download PDFInfo
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- CN209876105U CN209876105U CN201920515886.1U CN201920515886U CN209876105U CN 209876105 U CN209876105 U CN 209876105U CN 201920515886 U CN201920515886 U CN 201920515886U CN 209876105 U CN209876105 U CN 209876105U
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Abstract
The utility model discloses a calotte valve gas accuse device of time delay control, including the intercommunication second solenoid valve between gas circuit switch gas outlet and calotte valve gasbag air inlet to and the system control signal input end of connecting at first solenoid valve is used for time delay input system control signal to time delay relay in the first solenoid valve. By adding the time delay relay and the improvement of the electromagnetic valve, the dome valve can ensure that the dome valve core acts after the air bag in the valve body is fully decompressed under the condition of ensuring the original action principle to be unchanged; the problem of the gasbag damage that leads to because of dome valve case and gasbag wearing and tearing is thoroughly solved, improve the life of dome valve, reduce field personnel's maintenance volume, guarantee the normal production of technology.
Description
Technical Field
The utility model relates to an air current control of mechanical valve especially relates to a dome valve air control unit of time delay control.
Background
A dome valve is a mechanical valve that can shut off the flowing stream or the stationary column of material entering the pressure tank and then close to effect a seal; the dome valve adopts a structure of a metal dome valve core and a peripheral air bag, has good sealing property when the valve is closed, is a switch for conveying solid materials by gas in the current chemical production, and is used in a loose, dry, non-viscous and flowable sealing conveying system to play a role in opening and cutting off materials in a pipeline. The dome valve core can be made of different materials according to different use occasions, and the smooth and hard surface of the dome valve core is in good close contact with the air bag, so that the sealing reliability is ensured.
The dome valve has the working characteristics that when the valve is closed, the valve core rotates to enable the valve to be in a closed state, and after the valve core is closed in place, the thimble at the connecting rod touches the air path change-over switch of the two-position three-way valve to inflate an air bag in the valve body so as to seal a gap around the dome valve core and prevent materials from passing through equipment; when the valve is in the open position, the thimble at the connecting rod leaves the air passage change-over switch of the two-position three-way valve, so that the air bag in the valve body is deflated, and the dome-shaped valve core rotates to the open position, so that the material passes through the equipment. Because the dome valve acts very frequently (about 150 times per day) when the device operates, when the valve receives an opening command, the metal dome valve core starts to act, the thimble at the connecting rod does not leave the air passage switch sufficiently, the air pressure of the air bag in the valve is not leaked, the metal dome valve core is in close contact with the air bag, and the wear rate of the air bag is increased. The service time of the dome valve air bag is shortened, so that the dome valve is overhauled off line to replace the air bag, the conveying equipment cannot normally operate or the device stops production, and the operation of the conveying equipment and the production efficiency of the device are influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provides a dome valve air control unit of time delay control, has solved the defect that current dome valve air control unit exists.
The purpose of the utility model is realized through the following technical scheme: the utility model provides a dome valve pneumatic control device of time delay control, is including the intercommunication at the second solenoid valve between gas circuit switch gas outlet and dome valve gasbag air inlet to and connect the system control signal input of first solenoid valve and be used for with system control signal time delay input to time delay relay in the first solenoid valve.
And the time delay relay and the second electromagnetic valve are connected with an input system control signal to realize the time delay control of the dome valve gas path.
An air outlet of the air passage of the first electromagnetic valve is communicated with the input end of the air control valve; and the first electromagnetic valve and the air passage air inlet of the air control valve are connected with instrument air.
And the air passage air outlet of the pneumatic control valve is communicated with the upper and lower air inlets of the dome valve cylinder.
The dome valve cylinder comprises a dome valve cylinder upper part and a dome valve cylinder lower part; an air outlet of an air path of the air control valve is communicated with a quick exhaust valve at the upper part of the dome valve cylinder; and the air outlet of the other air passage of the pneumatic control valve is communicated with the air inlet at the lower part of the dome valve cylinder.
And the air outlet of the quick exhaust valve is communicated to an air inlet of the air circuit switcher.
The lower part of the dome valve cylinder is connected with a dome valve rod, and the tail end of the dome valve rod is connected with a dome valve core.
And the dome valve rod is connected with an ejector pin for touching the air path switcher.
The first electromagnetic valve and the second electromagnetic valve are two-position three-way electromagnetic valves.
The pneumatic control valve is a two-position five-way pneumatic control valve.
The utility model has the advantages that: a dome valve pneumatic control device controlled in a delayed mode can ensure that a dome valve core acts after an air bag in a valve body is fully decompressed under the condition that the original action principle of a dome valve is not changed by adding a delayed relay and improving an electromagnetic valve; the problem of the gasbag damage that leads to because of dome valve case and gasbag wearing and tearing is thoroughly solved, improve the life of dome valve, reduce field personnel's maintenance volume, guarantee the normal production of technology.
Drawings
FIG. 1 is a diagram of a dome valve time delay control circuit;
in the figure, 1-a first electromagnetic valve, 2-a pneumatic control valve, 3-a quick exhaust valve, 4-a dome valve cylinder, 5-a pneumatic circuit switcher, 6-a dome valve air bag, 7-a thimble, 8-a dome valve rod, 9-a dome valve core, 10-a second electromagnetic valve and 11-a time delay relay.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
As shown in FIG. 1, the dome valve pneumatic control device with time delay control comprises a second electromagnetic valve 10 communicated between an air outlet of an air passage switcher 5 and an air inlet of a dome valve air bag 6, and a time delay relay 11 connected to a system control signal input end of a first electromagnetic valve 1 and used for inputting a system control signal into the first electromagnetic valve 1 in a time delay mode.
The time delay relay 11 and the second electromagnetic valve 10 are connected with an input system control signal to realize the time delay control of the dome valve gas path.
Further, one end of the delay relay 11 inputs a control signal of the system, and the other end is connected with a coil of the first electromagnetic valve 1, and the control signal of the system is input into the first electromagnetic valve 1 in a delayed manner and is supplied to the first electromagnetic valve 1 in a delayed manner; the control signal of the system also needs to be input to the coil of the second solenoid valve 10, so that the control signal of the system is input to the second solenoid valve 10 and power is supplied to the second solenoid valve 10.
An air outlet of an air passage of the first electromagnetic valve 1 is communicated with an input end of the air control valve 2; and air inlets of the first electromagnetic valve 1 and the air control valve 2 are connected with instrument air.
And the air passage air outlet of the pneumatic control valve 2 is communicated with the air inlet of the dome valve cylinder 4.
The dome valve cylinder 4 comprises a dome valve cylinder upper part and a dome valve cylinder lower part; an air outlet of an air path of the air control valve 2 is communicated with a quick exhaust valve 3 at the upper part of the dome valve cylinder; and the air outlet of the other air passage of the pneumatic control valve 2 is communicated with the air inlet at the lower part of the dome valve cylinder.
The air outlet of the quick exhaust valve 3 is communicated with an air inlet of the air circuit switcher 5.
Further, the air circuit switcher 5 comprises an air inlet and two air outlets, and the air circuit switcher 5 is connected with a self-generating spring.
The lower part of the dome valve cylinder is connected with a dome valve rod 8, and the tail end of the dome valve rod 8 is connected with a dome valve core 9.
And the dome valve rod 8 is connected with an ejector pin 7 used for touching the air path switcher 5.
The first electromagnetic valve 1 and the second electromagnetic valve 10 are two-position three-way electromagnetic valves.
Further, a two-position three-way solenoid valve represents two positions controllable: the three-way valve is opened and closed, wherein three channels are used for ventilation, one input port is connected with an air source, one output port is connected with an actuating mechanism, and the other output port is used as an exhaust port and communicated with the atmosphere;
the coil of the first two-position three-way electromagnetic valve (1) receives a signal given by a normally open contact of the time delay relay, the air inlet is connected with an air source, one outlet is communicated with the input end of the pneumatic control valve 2, and the other outlet is communicated with the atmosphere.
A coil of the second two-position three-way electromagnetic valve (10) receives a control signal of the system, and an air inlet is connected with an air outlet of the air path switcher 5; one outlet is connected with the dome valve air bag, and the other outlet is communicated with the atmosphere.
The pneumatic control valve 2 is a two-position five-way pneumatic control valve, and the pneumatic control valve 2 is provided with a return spring.
Further, two bits indicate that there are two positions controllable: and the five-way valve is opened and closed, wherein five channels are used for ventilation, one input port is connected with an air source, one of two output ports is connected with the quick exhaust valve 3 at the upper part of the dome valve cylinder, the other output port is connected with the air inlet at the lower part of the dome valve cylinder, and the other two output ports are used as exhaust ports at the upper part and the lower part of the cylinder and are communicated with the atmosphere.
The gas circuit control process of the dome valve before transformation is as follows: when the dome valve receives an opening control signal input by a system, instrument air enters the lower part of a dome valve cylinder through a second output channel of a first electromagnetic valve output control pneumatic control valve 2, the first output channel of the pneumatic control valve 2 is blocked, a quick exhaust valve is opened, the upper part of the cylinder exhausts through an exhaust port of the pneumatic control valve 2, the cylinder piston moves upwards, an execution mechanism valve rod 8 drives a dome valve core 9 to rotate, and meanwhile, a thimble 7 connected to the dome valve rod 8 leaves an air circuit switcher 5; the air channel switcher 5 completes air release of the air bag under the action of the self-generated spring.
When the dome valve receives the closing control signal of system input, pneumatic control valve 2 is opened at reset spring's effect first output channel down, make the instrument air enter into dome valve cylinder upper portion, pneumatic control valve 2 second passageway is closed, the cylinder lower part is discharged through pneumatic control valve 2 gas vent, cylinder piston moves down, actuating mechanism valve rod 8 drives dome valve case 9 and rotates to the shut-off position simultaneously, and drive thimble 7 of connecting on dome valve rod 8 touches gas circuit switch 5, the instrument air is aerifyd for dome valve gasbag 6 through fast valve 3 and gas circuit switch 5, under the combined action of dome valve case 9 and gasbag, just cut off the dust material in the pipeline.
The delay control process of the device is as follows: when the dome valve receives a process that the system changes from a closing control signal to an opening control signal, the opening control signal input by the system is simultaneously input into a delay relay 11 and a second electromagnetic valve 10 to deflate and release an inflated dome valve airbag 6, then the opening control signal is input into a coil of a first electromagnetic valve 1 after being delayed for (3-5) seconds through the delay relay 11, and the dome valve airbag 6 completes deflation and release pressure in the delayed time period so as to ensure that the dome valve airbag 6 releases pressure before a dome valve spool 9 rotates; receive the control signal and the power supply of opening when first solenoid valve 1, the instrument air passes through gas accuse valve 2 and gets into dome valve cylinder lower part, and then drive dome valve case 9 pivoted in-process through dome valve stem 8 and just can not produce the friction with the dome valve gasbag 6 of disappointing the pressure release has been accomplished, in order to prevent the wearing and tearing of dome valve gasbag 9, thoroughly solve the trouble that the dome valve gasbag 6 that leads to because of dome valve case 9 and 6 wearing and tearing of dome valve gasbag damaged, the life of dome valve has been improved, the field personnel's maintenance volume has been reduced, and the normal production of technology has been guaranteed.
The delay time can be set according to the actual situation, such as 3s or 5 s.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A dome valve air control of delay control which characterized in that: the device comprises a second electromagnetic valve (10) communicated between an air outlet of an air passage switcher (5) and an air inlet of a dome valve air bag (6), and a time delay relay (11) connected to a system control signal input end of a first electromagnetic valve (1) and used for inputting a system control signal into the first electromagnetic valve (1) in a time delay mode.
2. A time delay controlled dome valve air control as set forth in claim 1, wherein: and the time delay relay (11) and the second electromagnetic valve (10) are connected with an input system control signal to realize the time delay control of the dome valve gas circuit.
3. A time delay controlled dome valve air control as set forth in claim 1, wherein: an air outlet of an air passage of the first electromagnetic valve (1) is communicated with an input end of the air control valve (2); and the air inlets of the first electromagnetic valve (1) and the air control valve (2) are connected with instrument air.
4. A time-controlled dome valve air control as set forth in claim 3, wherein: and the air passage air outlet of the air control valve (2) is communicated with the upper and lower air inlets of the dome valve cylinder (4).
5. A time delay controlled dome valve air control as set forth in claim 4, wherein: the dome valve cylinder (4) comprises a dome valve cylinder upper part and a dome valve cylinder lower part; an air outlet of an air passage of the air control valve (2) is communicated with a quick exhaust valve (3) at the upper part of the dome valve cylinder; and the air outlet of the other air passage of the air control valve (2) is communicated with the air inlet at the lower part of the dome valve cylinder.
6. A time-controlled dome valve air control as set forth in claim 5, wherein: the air outlet of the quick exhaust valve (3) is communicated with an air inlet of the air circuit switcher (5).
7. A time-controlled dome valve air control as set forth in claim 5, wherein: the lower part of the dome valve cylinder is connected with a dome valve rod (8), and the tail end of the dome valve rod (8) is connected with a dome valve core (9).
8. A time delay controlled dome valve air control as set forth in claim 7, wherein: and the dome valve rod (8) is connected with an ejector pin (7) used for touching the air path switcher (5).
9. A time delay controlled dome valve air control as set forth in any one of claims 1-8 wherein: the first electromagnetic valve (1) and the second electromagnetic valve (10) are two-position three-way electromagnetic valves.
10. A time-controlled dome valve air control as set forth in claim 3, wherein: the pneumatic control valve (2) is a two-position five-way pneumatic control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920515886.1U CN209876105U (en) | 2019-04-16 | 2019-04-16 | Dome valve air control device with time delay control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920515886.1U CN209876105U (en) | 2019-04-16 | 2019-04-16 | Dome valve air control device with time delay control |
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| Publication Number | Publication Date |
|---|---|
| CN209876105U true CN209876105U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920515886.1U Active CN209876105U (en) | 2019-04-16 | 2019-04-16 | Dome valve air control device with time delay control |
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| CN (1) | CN209876105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116045067A (en) * | 2023-01-06 | 2023-05-02 | 宁波市奉化区诺鑫气动工程有限公司 | Delay pneumatic control valve |
| CN117205419A (en) * | 2023-10-26 | 2023-12-12 | 广州蓝仕威克医疗科技有限公司 | Ventilation method capable of controlling ventilation and artificial resuscitator device |
-
2019
- 2019-04-16 CN CN201920515886.1U patent/CN209876105U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116045067A (en) * | 2023-01-06 | 2023-05-02 | 宁波市奉化区诺鑫气动工程有限公司 | Delay pneumatic control valve |
| CN116045067B (en) * | 2023-01-06 | 2024-05-17 | 宁波市奉化区诺鑫气动工程有限公司 | Delay pneumatic control valve |
| CN117205419A (en) * | 2023-10-26 | 2023-12-12 | 广州蓝仕威克医疗科技有限公司 | Ventilation method capable of controlling ventilation and artificial resuscitator device |
| CN117205419B (en) * | 2023-10-26 | 2024-04-19 | 广州蓝仕威克医疗科技有限公司 | Ventilation method capable of controlling ventilation and artificial resuscitator device |
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