CN209909199U - Gas expansion sealing single-seat regulating valve - Google Patents
Gas expansion sealing single-seat regulating valve Download PDFInfo
- Publication number
- CN209909199U CN209909199U CN201920501675.2U CN201920501675U CN209909199U CN 209909199 U CN209909199 U CN 209909199U CN 201920501675 U CN201920501675 U CN 201920501675U CN 209909199 U CN209909199 U CN 209909199U
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- valve
- gas expansion
- valve body
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- cover
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- 238000007789 sealing Methods 0.000 title claims abstract description 30
- 230000001105 regulatory effect Effects 0.000 title abstract description 13
- 238000000605 extraction Methods 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 238000012856 packing Methods 0.000 claims description 26
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 210000004907 gland Anatomy 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a gas expansion sealing single-seat regulating valve, which comprises a valve body, a valve seat, a medium inlet, a medium outlet, a valve core, a valve rod, an upper valve cover, a lower valve cover, an inflation and air extraction integrated pump, a gas connecting pipe and a gas expansion sealing ring; the medium inlet and the medium outlet are respectively arranged on the left side and the right side of the valve body, the valve core is arranged in a middle cavity in the valve body, and the valve core is connected with the lower end of the valve rod; the upper valve cover is fixedly arranged at the upper end of the valve body, the lower valve cover is fixedly arranged at the bottom of the valve body, and the upper end of the valve rod penetrates through the upper valve cover and then is connected with the manual adjusting rod; the valve seat is arranged on the inner wall of the valve body, and the gas expansion sealing ring is arranged in the pressing sheet of the valve seat; the air inflation and air extraction integrated pump is fixed on the upper valve cover; one end of the gas connecting pipe is connected with the gas-charging and gas-exhausting integrated pump, and the other end of the gas connecting pipe penetrates through the upper valve cover and then is connected with the gas expansion sealing ring. The gas expansion sealing ring is arranged on the valve seat pressing sheet, so that friction caused by direct contact of the valve core and the valve body is avoided, and good sealing performance of the regulating valve is ensured.
Description
Technical Field
The utility model relates to a governing valve specifically is a sealed single seat governing valve of gas expansion.
Background
The single-seat regulating valve is used for realizing switching value or proportional regulation and receiving a control signal of an industrial automatic control system to regulate various process parameters such as flow, pressure and the like of a pipeline medium. The single-seat regulating valve is simple to control, quick in response and safe in nature, does not need to take additional explosion-proof measures, and is particularly suitable for occasions with strict requirements on leakage quantity, low differential pressure before and after the valve and certain viscosity or fiber-containing media. The single-seat regulating valve is small and exquisite, is simple and convenient to operate, and has a wide application range, so that the single-seat regulating valve can work accurately and normally and has very important significance for ensuring the normal operation and safe production of a process device.
In prior art, single-seat valve case and disk seat are made by metal material, and the texture is harder, and the fitting surface between the two can not avoid having certain clearance, and when single seat governing valve normal operating, case and disk seat contact cooperation, both form metal and intermetallic hard seal structure in cooperation department, long-time back of using, and the looks mutual friction between case and the disk seat leads to sealed effect more and more poor, has certain leakage risk.
Therefore, a gas expansion sealing single-seat regulating valve is needed for solving the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: to the problem and not enough of existence among the above-mentioned prior art, the utility model aims at providing a sealed single seat governing valve of gas expansion.
The technical scheme is as follows: in order to achieve the purpose, the gas expansion sealing single-seat regulating valve comprises a valve body, a valve seat, a medium inlet, a medium outlet, a valve core, a valve rod, an upper valve cover, a lower valve cover, an inflation and air exhaust integrated pump, a gas connecting pipe and a gas expansion sealing ring; the medium inlet is arranged on the left side of the valve body, the medium outlet is arranged on the right side of the valve body, the valve core is arranged in a middle cavity in the valve body, and the valve core is connected with the lower end of the valve rod; the upper valve cover is fixedly arranged at the upper end of the valve body, the lower valve cover is fixedly arranged at the bottom of the valve body, and the upper end of the valve rod penetrates through the upper valve cover and then is connected with the manual adjusting rod; the valve seat is arranged on the inner wall of the valve body, and the gas expansion sealing ring is arranged in a pressing sheet of the valve seat; the inflation and air extraction integrated pump is fixed on the upper valve cover; one end of the gas connecting pipe is connected with the inflation and air extraction integrated pump, and the other end of the gas connecting pipe penetrates through the upper valve cover and then is connected with the gas expansion sealing ring.
Further, the upper end of valve body is equipped with the annular, and the upper valve cover lower extreme is equipped with the clamping ring, in the clamping ring embedding annular, and go up the valve cover and pass through the screw connection with the valve body.
Further, a packing layer is arranged between the valve rod and the upper valve cover, the packing layer comprises an upper packing, a middle packing and a lower packing, and packing spacers are arranged between the upper packing and the lower packing.
Furthermore, a gland for compressing the packing layer is arranged on the upper valve cover.
Furthermore, a medium inlet and a medium outlet of the valve body are both provided with a pressure-reducing and noise-reducing valve trim, and the pressure-reducing and noise-reducing valve trim comprises a sleeve and a plurality of wavy plates which are axially arranged along the sleeve respectively.
Furthermore, the outer wall of the sleeve is provided with a T-shaped block fixed with the valve body, and the inner wall of the valve body is provided with a T-shaped groove matched with the T-shaped block.
Furthermore, the manual adjusting rod is hinged with a valve rod positioning piece, the upper valve cover is provided with limiting discs around the valve rod, the limiting discs are evenly provided with limiting grooves around the limiting discs, and the valve rod positioning piece is embedded into the limiting grooves. The position of the valve rod can be accurately fixed through the limiting disc.
Further, the valve core is hemispherical, and the valve body is made of a sound attenuation material.
Above-mentioned technical scheme can see out, the beneficial effects of the utility model are that:
the gas expansion sealing single-seat regulating valve has reasonable structural design, the gas expansion sealing ring is arranged on the valve seat pressing sheet, and when the valve core and the valve body need to be sealed, the gas inflation and air exhaust integrated pump is used for controlling the inflation of the gas expansion sealing ring; the gas expansion sealing ring has a sealing effect, the gas is pumped back from the gas expansion valve sealing ring by the gas inflation and air suction integrated pump, the gas expansion sealing ring loses the sealing effect, the valve core and the valve body are prevented from being in direct contact to generate friction, and the good sealing performance of the regulating valve is ensured.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the pressure reducing and noise reducing valve internal part of the present invention;
FIG. 3 is a schematic view of the overall structure of the pressure reducing and noise reducing valve inner part of the present invention;
FIG. 4 is a schematic view of the connection relationship between the manual adjusting rod and the limiting disc of the present invention;
fig. 5 is a schematic view of the connection relationship between the valve seat and the gas expansion sealing ring according to the present invention.
Detailed Description
The invention will be further elucidated with reference to the drawings and the specific embodiments.
1-5, the gas expansion sealing single-seat regulating valve comprises a valve body 1,
The gas-liquid separation valve comprises a valve seat 2, a medium inlet 3, a medium outlet 4, a valve core 5, a valve rod 6, an upper valve cover 7, a lower valve cover 8, an inflation and air-extraction integrated pump 9, a gas connecting pipe 10 and a gas expansion sealing ring 11; the medium inlet 3 is arranged on the left side of the valve body 1, the medium outlet 4 is arranged on the right side of the valve body 1, the valve core 5 is arranged in a middle cavity in the valve body 1, and the valve core 5 is connected with the lower end of the valve rod 6; the upper valve cover 7 is fixedly arranged at the upper end of the valve body 1, the lower valve cover 8 is fixedly arranged at the bottom of the valve body 1, and the upper end of the valve rod 6 penetrates through the upper valve cover 7 and then is connected with the manual adjusting rod 12; the valve seat 2 is arranged on the inner wall of the valve body 1, and the gas expansion sealing ring 11 is arranged in the pressing sheet 21 of the valve seat 2; the inflation and air extraction integrated pump 9 is fixed on the upper valve cover 7; one end of the gas connecting pipe 10 is connected with the gas-filled and gas-pumped integrated pump 9, and the other end of the gas connecting pipe penetrates through the upper valve cover 7 and then is connected with the gas expansion sealing ring 11. In the embodiment, the gas expansion valve 11 is an O-ring made of nitrile rubber, has good wear resistance, is arranged in the pressing sheet 21 of the valve seat 2, and is convenient to replace.
In this embodiment the upper end of valve body 1 is equipped with annular 1a, and 7 lower extremes of upper valve bonnet are equipped with clamping ring 7a, in clamping ring 7a embedding annular 1a, and upper valve bonnet 7 passes through screw connection with valve body 1.
In this embodiment, a packing layer 13 is disposed between the valve rod 6 and the upper valve cover 7, and the packing layer includes an upper packing, a middle packing and a lower packing, and a packing spacer is disposed therebetween.
In this embodiment, the upper valve cover 7 is provided with a gland for compressing the packing layer 13.
In this embodiment, the medium inlet 3 and the medium outlet 4 of the valve body 1 are both provided with a pressure-reducing noise-reducing valve trim 14, and the pressure-reducing noise-reducing valve trim 14 includes a sleeve 141 and a plurality of corrugated plates 142 respectively axially mounted along the sleeve 141.
In this embodiment, the outer wall of the sleeve 141 is provided with a T-shaped block 143 fixed with the valve body 1, and the inner wall of the valve body 1 is provided with a T-shaped groove matched with the T-shaped block 143. The wave-shaped plate 142 is arranged in parallel in the sleeve 141, so that the flow of the medium in the valve body can be better controlled, and the pressure reduction and noise reduction performance can be achieved by adjusting the angle of the waves and the distance of the circulation gap so as to control the flow speed of the medium in the circulation gap.
In this embodiment, the manual adjustment rod 12 is hinged with a valve rod positioning piece 121, the upper bonnet 7 is provided with a limiting disc 15 around the valve rod 6, the limiting disc 15 is uniformly provided with a limiting groove 151 around, and the valve rod positioning piece 122 is embedded into the limiting groove 151. Position of the valve rod can be accurately fixed through the limiting groove and the valve rod positioning sheet
In this embodiment, the valve core 5 is a hemisphere, and the valve body 1 is made of a sound-deadening material.
The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention, which is to be determined by those skilled in the art after reading the present disclosure, and all such equivalents are intended to fall within the scope of the invention as defined in the claims appended hereto.
Claims (9)
1. The utility model provides a sealed single seat governing valve of gas expansion which characterized in that: the valve comprises a valve body (1), a valve seat (2), a medium inlet (3), a medium outlet (4), a valve core (5), a valve rod (6), an upper valve cover (7), a lower valve cover (8), an air inflation and air extraction integrated pump (9), a gas connecting pipe (10) and a gas expansion sealing ring (11); the medium inlet (3) is arranged on the left side of the valve body (1), the medium outlet (4) is arranged on the right side of the valve body (1), the valve core (5) is arranged in a middle cavity in the valve body (1), and the valve core (5) is connected with the lower end of the valve rod (6); the upper valve cover (7) is fixedly arranged at the upper end of the valve body (1), the lower valve cover (8) is fixedly arranged at the bottom of the valve body (1), and the upper end of the valve rod (6) penetrates through the upper valve cover (7) and then is connected with the manual adjusting rod (12); the valve seat (2) is arranged on the inner wall of the valve body (1), and the gas expansion sealing ring (11) is arranged in a pressing sheet (21) of the valve seat (2); the air inflation and air extraction integrated pump (9) is fixed on the upper valve cover (7); one end of the gas connecting pipe (10) is connected with the gas-charging and gas-exhausting integrated pump (9), and the other end of the gas connecting pipe penetrates through the upper valve cover (7) and then is connected with the gas expansion sealing ring (11).
2. A gas expansion seal single seat regulator valve in accordance with claim 1 wherein: the upper end of valve body (1) is equipped with annular (1 a), goes up valve gap (7) lower extreme and is equipped with clamping ring (7 a), clamping ring (7 a) embedding annular (1 a) in, and go up valve gap (7) and pass through the screw connection with valve body (1).
3. A gas expansion seal single seat regulator valve in accordance with claim 1 wherein: a packing layer (13) is arranged between the valve rod (6) and the upper valve cover (7), the packing layer (13) comprises an upper packing, a middle packing and a lower packing, and packing spacer sleeves are arranged between the upper packing, the middle packing and the lower packing.
4. A gas expansion seal single seat regulator valve as defined in claim 3 wherein: and a gland for compacting the packing layer (13) is arranged on the upper valve cover (7).
5. A gas expansion seal single seat regulator valve in accordance with claim 1 wherein: and medium inlets (3) and medium outlets (4) of the valve body (1) are respectively provided with a decompression and noise reduction valve internal part (14).
6. A gas expansion seal single seat regulator valve in accordance with claim 5 wherein: the decompression noise reduction valve internal member (14) comprises a sleeve (141) and a plurality of wave-shaped plates (142) which are respectively arranged along the axial direction of the sleeve (141).
7. A gas expansion seal single seat regulator valve in accordance with claim 6 wherein: the outer wall of the sleeve (141) is provided with a T-shaped block (143) fixed with the valve body (1), and the inner wall of the valve body (1) is provided with a T-shaped groove matched with the T-shaped block (143).
8. A gas expansion seal single seat regulator valve in accordance with claim 1 wherein: articulated valve rod spacer (121) on manual regulation pole (12), it sets up spacing disc (15) to lie in all around valve rod (6) on upper valve cover (7), evenly set up spacing groove (151) around spacing disc (15), valve rod spacer (122) embedding spacing inslot (151).
9. A gas expansion seal single seat regulator valve in accordance with claim 1 wherein: the valve core (5) is hemispherical, and the valve body (1) is made of a noise reduction material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920501675.2U CN209909199U (en) | 2019-04-12 | 2019-04-12 | Gas expansion sealing single-seat regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920501675.2U CN209909199U (en) | 2019-04-12 | 2019-04-12 | Gas expansion sealing single-seat regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209909199U true CN209909199U (en) | 2020-01-07 |
Family
ID=69036088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920501675.2U Expired - Fee Related CN209909199U (en) | 2019-04-12 | 2019-04-12 | Gas expansion sealing single-seat regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209909199U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637263A (en) * | 2020-05-06 | 2020-09-08 | 安徽省天然气开发股份有限公司 | Prevent leaking high pressure regulator for natural gas of security |
| CN115962287A (en) * | 2022-11-25 | 2023-04-14 | 无锡美瑞克阀门制造有限公司 | Inflation sealing semi-circular top valve |
-
2019
- 2019-04-12 CN CN201920501675.2U patent/CN209909199U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637263A (en) * | 2020-05-06 | 2020-09-08 | 安徽省天然气开发股份有限公司 | Prevent leaking high pressure regulator for natural gas of security |
| CN111637263B (en) * | 2020-05-06 | 2021-12-24 | 安徽省天然气开发股份有限公司 | Prevent leaking high pressure regulator for natural gas of security |
| CN115962287A (en) * | 2022-11-25 | 2023-04-14 | 无锡美瑞克阀门制造有限公司 | Inflation sealing semi-circular top valve |
| CN115962287B (en) * | 2022-11-25 | 2023-10-27 | 无锡美瑞克阀门制造有限公司 | Inflatable sealing semicircular top valve |
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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: 20200107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |