CN212155852U - High-stability pneumatic film single-seat regulating valve - Google Patents
High-stability pneumatic film single-seat regulating valve Download PDFInfo
- Publication number
- CN212155852U CN212155852U CN202020744945.5U CN202020744945U CN212155852U CN 212155852 U CN212155852 U CN 212155852U CN 202020744945 U CN202020744945 U CN 202020744945U CN 212155852 U CN212155852 U CN 212155852U
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- valve
- seat
- valve body
- regulating valve
- stability
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- 230000001105 regulatory effect Effects 0.000 title claims description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 239000010408 film Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 4
- 239000010425 asbestos Substances 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 3
- 239000000945 filler Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of pneumatic control valves, and discloses a high-stability pneumatic film single-seat control valve, which comprises a valve body, wherein an S-shaped streamline fluid channel is arranged in the valve body; a valve seat is arranged in the valve body, a valve core for controlling the on-off of the channel is arranged in the valve seat, and the valve core is fixedly connected to the valve rod; the upper end of the valve body is connected with a valve cover, and a guide sleeve is arranged at the joint of the valve cover and the interior of the valve body; a filler block and a compression screw are arranged at the joint of the interior of the valve cover and the valve rod; the upper end of the valve cover is provided with a bracket, and the upper end of the bracket is connected with an actuating mechanism; two groups of symmetrical springs are arranged in the executing mechanism. The utility model has the characteristics of compact structure, flow stability are good, adjust the precision height, easy dismounting etc, can extensively keep at the setting value with the flow of media such as accurate control gas, liquid, be applicable to fields such as chemical industry, biology, oil.
Description
Technical Field
The utility model belongs to the technical field of pneumatic governing valve, concretely relates to pneumatic film single seat governing valve of high stability.
Background
The pneumatic film single-seat regulating valve is a visual and simple flow regulating and controlling device, and its structure includes two portions of pneumatic film actuator and stop valve. The stop valve part comprises a valve body, a valve cover, a valve seat, a valve core, a valve rod and the like, and the valve is driven by a pneumatic membrane actuator to lift the valve rod so as to realize the opening and closing actions of the valve and realize the flow regulation of a pipeline.
At present, the valve core and the valve seat of the conventional pneumatic film single-seat regulating valve are matched by adopting a straight cylinder tight fit structure, and although the regulation and control are accurate, the flow control stability becomes worse after long-term use and abrasion, and leakage is easy to occur; moreover, the inside setting of pneumatic actuator at top is mostly single spring structure, and its spring height is high, and the installation is inconvenient, and single spring produces the yielding deformation easily under long-time compression, influences governing valve flow control's stability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide a pneumatic film single seat governing valve of high stability, have characteristics such as compact structure, flow stability are good, the regulation precision is high, easy dismounting, but the flow of media such as extensive accurate control gas, liquid keeps at the setting value, is applicable to fields such as chemical industry, biology, oil.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a high-stability pneumatic film single-seat regulating valve comprises a valve body, wherein an S-shaped streamline fluid channel is arranged in the valve body; a valve seat is arranged in the valve body, a valve core for controlling the on-off of the channel is arranged in the valve seat, and the valve core is fixedly connected to the valve rod; the upper end of the valve body is connected with a valve cover, and a guide sleeve is arranged at the joint of the valve cover and the interior of the valve body; a filler block and a compression screw are arranged at the joint of the interior of the valve cover and the valve rod; the upper end of the valve cover is provided with a bracket, and the upper end of the bracket is connected with an actuating mechanism; two groups of symmetrical springs are arranged in the executing mechanism.
As an improvement, the valve core is provided with a protruding part which is higher than the valve seat, and the height of the protruding part is 1.5-3 times higher than that of the valve seat.
As an improvement, the convex part of the valve core is of an inverted cone structure, and the taper is 60-90 degrees.
As an improvement, the valve cover is connected with the valve body through bolts.
As an improvement, a sealing gasket is arranged at the joint of the guide sleeve and the valve body, and the sealing gasket is made of asbestos rubber.
As an improvement, the support is of a square structure, and a sign is arranged on the support.
As an improvement, the actuating mechanism is also connected with an air filtering pressure reducer and a valve position driver.
As a refinement, the spring is located in a recess inside the actuator.
As a modification, the actuator is connected to the valve stem by a nut.
As an improvement, the valve body is made of WCB/CF8 carbon steel.
The utility model discloses the beneficial effect who gains does: a high-stability pneumatic film single-seat regulating valve has the characteristics of compact structure, good flow stability, high regulating precision, convenience in disassembly and assembly and the like; the top guide structure is adopted and matched with the two groups of spring actuating mechanisms, so that the pressure regulation and control of the regulating valve are more stable and the action is sensitive, and meanwhile, the regulating valve is simple and compact in structure and convenient to maintain and install; the fluid channel adopts an S-streamline structure, so that pressure drop loss is small, and flow control is more accurate; the protruding part of the valve core is designed to be an inverted cone structure, and the taper of the protruding part is 60-90 degrees, so that the problem of unstable flow control caused by abrasion of a straight cylinder structure is solved; in addition, the valve body is made of WCB/CF8 carbon steel, so that the wear resistance and temperature resistance of the valve body are improved, and the service life of the valve body is prolonged.
Drawings
Fig. 1 is the structure schematic diagram of the high-stability pneumatic film single-seat regulating valve of the present invention.
In the figure: 1. the device comprises a valve body, a valve seat, a valve core, a valve rod, a valve cover, a valve core, a valve rod, a valve cover, a guide sleeve, a packing block, a pressing screw, a support, an execution mechanism, a spring, a sealing gasket, a sealing plate, a guide plate and a sign, wherein the valve body is 2, the valve seat is 3; 14. and a nut.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the high-stability pneumatic thin-film single-seat regulating valve of the present embodiment includes a valve body 1, and an S-streamline fluid passage is provided in the valve body 1; a valve seat 2 is arranged in the valve body 1, a valve core 3 for controlling the on-off of a channel is arranged in the valve seat 2, and the valve core 3 is fixedly connected to a valve rod 4; the upper end of the valve body 1 is connected with a valve cover 5 through a bolt, and a guide sleeve 6 is arranged at the joint of the valve cover 5 and the interior of the valve body 1; a packing block 7 and a compression screw 8 are arranged at the joint of the valve cover 5 and the valve rod 4; the upper end of the valve cover 5 is provided with a bracket 9, and the upper end of the bracket 9 is connected with an actuating mechanism 10; two sets of springs 11 of symmetry are equipped with in the inside actuating mechanism 10, spring 11 is located the inside recess of actuating mechanism 10, specifically, the recess is in the activity welt to it is more convenient, swift to make the installation dismantle.
Further, the valve core 3 is provided with a protruding part higher than the valve seat, and the height of the protruding part is 1.5-3 times, preferably 2 times higher than that of the valve seat; furthermore, the protruding part of the valve core 3 is of an inverted cone structure, the taper is 60-90 degrees, and preferably 85 degrees, so that the valve core and the valve seat are always ensured to be matched and controlled more stably and reliably.
Furthermore, a sealing gasket 12 is arranged at the joint of the guide sleeve 6 and the valve body 1, and the sealing gasket 12 is made of asbestos rubber.
Furthermore, the support 9 is of a square structure, and an indication board 13 is arranged on the support.
Further, the actuator 10 is further connected with an air filtering pressure reducer and a valve position driver, so that the control action of the regulating valve is sensitive and the flow characteristic is accurate.
Furthermore, the actuating mechanism 10 is movably connected with the valve rod 4 through the nut 14, so that the mounting and the dismounting are convenient, and meanwhile, the stroke of the valve rod 4 can be well controlled, and the on-off of the valve core in the valve seat can be accurately controlled.
Furthermore, the valve body 1 is made of WCB/CF8 carbon steel, so that the valve body has higher use strength.
The utility model discloses a pneumatic film list seat governing valve of high stability has characteristics such as compact structure, flow stability are good, the regulation precision is high, easy dismounting, top direction and double spring structure for flow control is more stable, can extensively be used for the production automated control in fields such as electric power, metallurgy, biology and chemical industry.
Finally, it should be noted that the above-mentioned embodiments illustrate only specific embodiments of the invention. Obviously, the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (10)
1. A high-stability pneumatic film single-seat regulating valve comprises a valve body (1), and is characterized in that an S-shaped streamline fluid channel is arranged in the valve body (1); a valve seat (2) is arranged in the valve body (1), a valve core (3) for controlling the on-off of a channel is arranged in the valve seat (2), and the valve core (3) is fixedly connected to the valve rod (4); the upper end of the valve body (1) is connected with a valve cover (5), and a guide sleeve (6) is arranged at the joint of the valve cover (5) and the interior of the valve body (1); a packing block (7) and a compression screw (8) are arranged at the joint of the interior of the valve cover (5) and the valve rod (4); a support (9) is arranged at the upper end of the valve cover (5), and the upper end of the support (9) is connected with an actuating mechanism (10); two groups of symmetrical springs (11) are arranged in the executing mechanism (10).
2. The high-stability pneumatic diaphragm single-seat regulating valve according to claim 1, wherein the valve core (3) is provided with a bulge which is higher than the valve seat, and the height of the bulge is 1.5-3 times higher than that of the valve seat (2).
3. The high-stability pneumatic diaphragm single-seat regulating valve according to claim 2, wherein the protruding portion of the valve core (3) is of an inverted cone structure, and the taper is 60-90 °.
4. The high stability pneumatic diaphragm single seat regulating valve according to claim 1, characterized in that the valve cover (5) is connected with the valve body (1) by bolts.
5. The high-stability pneumatic thin-film single-seat regulating valve according to claim 1, wherein a sealing gasket (12) is arranged at the joint of the guide sleeve (6) and the valve body (1), and the sealing gasket (12) is made of asbestos rubber.
6. The high-stability pneumatic diaphragm single-seat regulating valve according to claim 1, wherein the support (9) is of a square structure, and a sign (13) is arranged on the support.
7. The high stability pneumatic diaphragm single seat regulating valve according to claim 1, wherein an air filter pressure reducer and a valve position actuator are further connected to the actuator (10).
8. High stability pneumatic diaphragm single seat regulating valve according to claim 1, characterized in that the spring (11) is located in a recess inside the actuator (10).
9. The high stability pneumatic diaphragm single seat regulating valve according to claim 7, characterized in that the actuator (10) is connected to the valve stem (4) by means of a nut (14).
10. The high-stability pneumatic diaphragm single-seat regulating valve according to claim 1, wherein the valve body (1) is made of WCB/CF8 carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020744945.5U CN212155852U (en) | 2020-05-08 | 2020-05-08 | High-stability pneumatic film single-seat regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020744945.5U CN212155852U (en) | 2020-05-08 | 2020-05-08 | High-stability pneumatic film single-seat regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212155852U true CN212155852U (en) | 2020-12-15 |
Family
ID=73709463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020744945.5U Expired - Fee Related CN212155852U (en) | 2020-05-08 | 2020-05-08 | High-stability pneumatic film single-seat regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212155852U (en) |
-
2020
- 2020-05-08 CN CN202020744945.5U patent/CN212155852U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |