CN210715971U - Long-life valve for treating multiphase flow medium - Google Patents
Long-life valve for treating multiphase flow medium Download PDFInfo
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- CN210715971U CN210715971U CN201921662226.2U CN201921662226U CN210715971U CN 210715971 U CN210715971 U CN 210715971U CN 201921662226 U CN201921662226 U CN 201921662226U CN 210715971 U CN210715971 U CN 210715971U
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- lipstick
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- 230000003628 erosive effect Effects 0.000 claims abstract description 81
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000012856 packing Methods 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 210000004907 gland Anatomy 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 3
- 239000006071 cream Substances 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 49
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a long-life valve for processing multiphase flow media, which comprises an angle-shaped valve body and a valve rod, wherein an erosion-resistant valve seat is arranged at the lower flange of the angle-shaped valve body, a packing box is arranged at the middle flange of the angle-shaped valve body, and the valve rod penetrates through the interior of the packing box and is respectively connected with a pneumatic actuating mechanism and a lipstick type erosion-resistant valve core; a packing gland, a packing assembly and an isolating ring of the sealing valve rod are sequentially arranged in the packing box; the top end of the valve rod is connected with the pneumatic actuating mechanism through the clamping block assembly, and the tail end of the valve rod is connected with the lipstick type erosion-resistant valve core; the erosion-resistant valve seat is arranged in the inner cavity of the angle-shaped valve body and is matched with the lipstick type erosion-resistant valve core to form a throttling surface, and the upper part of the lipstick type erosion-resistant valve core is provided with a sealing surface far away from the throttling surface. The utility model has the advantages that adopt the resistant erosion case of lip cream type to prolong the life of valve, in use, constantly move down after the case erosion and guarantee the restriction area to guarantee valve flow stability and safe operation.
Description
Technical Field
The utility model relates to a governing valve technical field especially relates to a long-life valve for handling heterogeneous flow medium.
Background
At present, the existing long-life valve for treating multiphase flow media is mainly applied to high-pressure-difference severe working conditions in the field of coal chemical industry, wherein the valve internals are seriously eroded, the service life is short, the maintenance period is long, and spare parts are frequently replaced; for example: a pressure reducing angle valve at the outlet of a high-pressure separation tank for coal-to-liquid, a liquid level regulating valve at the bottom of a waste boiler and the like. In addition, the long-life valve for treating multiphase flow media generally adopts integrally hardened internals to prolong the service life of the valve, but the effect is not ideal, the valve is frequently maintained, the problems of erosion of the internals of the valve and the like occur, and the safety of the device is seriously influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at disclosing a long-life valve for handling heterogeneous flow medium, its long-life valve that adopts the heterogeneous flow medium of the processing of lipstick formula design theory case has promoted the life who resists the erosion angle valve.
The utility model discloses a realize through following technical scheme: a long-life valve for processing multiphase flow media comprises an angle-shaped valve body and a valve rod, wherein an erosion-resistant valve seat is arranged at the lower flange of the angle-shaped valve body, a stuffing box is arranged at the middle flange of the angle-shaped valve body, and the valve rod penetrates through the stuffing box and is respectively connected with a pneumatic actuating mechanism and a lipstick-type erosion-resistant valve core; wherein the interior of the stuffing box is sequentially provided with a stuffing gland for sealing the valve rod, a stuffing assembly and an isolating ring; the top end of the valve rod is connected with the pneumatic actuating mechanism through the clamping block assembly, and the tail end of the valve rod is connected with the lipstick type erosion-resistant valve core; the erosion-resistant valve seat is arranged in the inner cavity of the angle-shaped valve body and is matched with the lipstick type erosion-resistant valve core to form a throttling surface, and the upper part of the lipstick type erosion-resistant valve core is provided with a sealing surface far away from the throttling surface.
According to the technical scheme, ① the upper portion of the lipstick type erosion-resistant valve core is provided with a sealing surface, the sealing surface is far away from a throttling surface, the sealing performance of the valve can be kept, ② the throttling surface of the lipstick type erosion-resistant valve core is arranged at the lowest end of the valve core and is matched with the valve seat to form a throttling surface, after the throttling surface of the valve core is eroded and damaged, the lipstick type erosion-resistant valve core can continuously move downwards and keep the throttling area unchanged, the flow characteristic of the valve is guaranteed, the stable operation of the valve is kept, ③ the middle portion of the lipstick type erosion-resistant valve core is matched with the erosion-resistant valve seat, the vibration of the lipstick type erosion-resistant valve core can be reduced, the noise of the valve is reduced, the damage caused by collision of the lipstick type erosion-resistant valve core and the erosion-resistant valve seat is reduced, and ④ the lipstick type erosion-resistant.
Furthermore, the lipstick type erosion-resistant valve core is of one of a cylindrical structure, a petal-shaped structure, a conical structure, an inverted cone-shaped structure and a rib-shaped structure.
Through the technical scheme, the flow control can be effectively carried out according to different media and different flow control requirements, and the service life of the valve is prolonged. For example: aiming at the adjustment of micro flow, a lipstick type erosion-resistant valve core structure with a petal-shaped structure is adopted, the area of the minimum throttling gap is increased, the medium flow velocity at the gap is reduced, the length of the gap is prolonged, when the lower gap is increased and the flow cannot be effectively adjusted, the medium flow can still be effectively adjusted by the upper gap, and the service cycle of the valve core is prolonged. For easily gasified media, the reverse conical structure lip paste type erosion-resistant valve core is adopted, pressure change in the throttling process is adjusted through the reverse conical structure of the valve core at the throttling position of the valve core and the valve seat, the medium gasification amount is controlled, and the medium flow rate in the throttling process is reduced, so that the erosion rate is reduced, and the service life of the valve core is prolonged.
Further, the hardness of the material of the erosion-resistant valve seat is 5-20 degrees higher than that of the lipstick type erosion-resistant valve core.
Through the technical scheme, the material hardness of the erosion-resistant valve seat is 5-20 degrees higher than that of the valve core, so that the erosion resistance of the valve seat is ensured.
Preferably, the erosion-resistant valve seat is made of tungsten carbide or ceramic materials.
Through the technical scheme, the service lives of the valve core and the valve seat are basically the same, the flow regulation performance of the valve can still be ensured in the process that the valve core is gradually abraded, and the valve seat can not be damaged by erosion in the process that the shape of the flow channel is kept, so that the valve fails in advance.
Compared with the prior art, the utility model has the advantages of it is following:
①, changing the method of improving the abrasion resistance only by improving the hardness of the valve core material, changing the erosion position and the structural characteristics of the valve core by changing the structural form of the valve core, and prolonging the service life of the valve core;
②, the maintenance and repair process is simple, and the check and replacement of the internal parts can be carried out after the bolts connecting the valve body and the stuffing box are loosened.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the valve core with a conical structure in the present invention;
FIG. 3 is a schematic structural view of the ribbed valve core of the present invention;
FIG. 4 is a bottom view of FIG. 3;
fig. 5 is a schematic structural view of the valve element with a petal-shaped structure according to the present invention;
FIG. 6 is a bottom view of FIG. 5;
fig. 7 is a schematic structural view of the valve element with a cylindrical structure according to the present invention;
fig. 8 is a schematic structural view of the valve core with inverted cone structure according to the present invention.
In the figure, 1, an angle type valve body; 2. a valve stem; 3. an erosion resistant valve seat; 4. a stuffing box; 41. a packing assembly; 42. an isolating ring; 43. a packing gland; 5. a pneumatic actuator; 6. a lipstick-type erosion-resistant valve core; 7. and (4) clamping block assemblies.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
A long-life valve for processing multiphase flow media is shown in figure 1 and comprises an angle-shaped valve body 1 and a valve rod 2, wherein an erosion-resistant valve seat 3 is installed at the lower flange of the angle-shaped valve body 1, a packing box 4 is installed at the middle flange of the angle-shaped valve body 1, and the valve rod 2 penetrates through the interior of the packing box 4 and is respectively connected with a pneumatic actuator 5 and a lipstick-type erosion-resistant valve core 6; wherein, a packing gland 43 for sealing the valve rod 2, a packing component 41 and an isolating ring 42 are sequentially arranged in the packing box 4; the top end of the valve rod 2 is connected with a pneumatic actuator 5 through a clamping block assembly 7, and the tail end of the valve rod 2 is connected with a lipstick type erosion-resistant valve core 6; and the erosion-resistant valve seat 3 is arranged in the inner cavity of the angle-shaped valve body 1 and is matched with the lipstick type erosion-resistant valve core 6 to form a throttling surface, and the upper part of the lipstick type erosion-resistant valve core 6 is provided with a sealing surface far away from the throttling surface so as to ensure that the sealing performance is kept in the service life of the lipstick type erosion-resistant valve core and the erosion-resistant valve seat 3. In addition, the length from the sealing surface to the throttling surface is designed according to the specific use requirement, particularly the service life of the valve.
Therefore, the lipstick type erosion-resistant valve core 6 is arranged inside the angle-shaped valve body 1, and the erosion-resistant valve seat 3 is arranged in the inner cavity of the angle-shaped valve body 1 through the lower flange of the angle-shaped valve body 1; the lip paste type erosion-resistant valve core 6 is connected with the valve rod 2 and penetrates through the stuffing box 4 arranged on a flange in the middle of the angle valve body 1, the pneumatic actuating mechanism 5 is arranged on the stuffing box 4, and the valve rod 2 is connected with the pneumatic actuating mechanism 5 through the clamping block component 7. The lipstick type erosion-resistant valve core 6 moves on the erosion-resistant valve seat 3 under the driving of the valve rod 2, and then the throttling area is adjusted.
On the basis of the scheme, the upper end of the erosion-resistant valve seat 3 is provided with a sealing surface, and the upper part of the lipstick-type erosion-resistant valve core 6 is also provided with the same sealing surface, so that the sealing surface of the lipstick-type erosion-resistant valve core 6 is contacted with the sealing surface of the erosion-resistant valve seat 3 and provides sealing when the valve is closed; in addition, under the normal working state, the sealing surface of the lipstick type erosion-resistant valve core 6 is far away from the sealing surface of the erosion-resistant valve seat 3 and is far away from the erosion area, so that the sealing performance of the lipstick type erosion-resistant valve core 6 and the erosion-resistant valve seat 3 can be kept for a long time.
Specifically, when the erosion-resistant valve seat 3 having a diameter of 25mm is used, the maximum length of the normal valve element (not shown in the figure) from the seal surface to the orifice surface is 25mm, that is, the maximum stroke is 25 mm; the lipstick type erosion-resistant valve core 6 used in the present application has a length of 38mm to 50 mm.
When the erosion-resistant valve seat 3 with the diameter of 50mm is selected, the maximum length of the common valve core from the sealing surface to the throttling surface is 50mm, namely the maximum stroke is 50mm, and the length of the lip paste type erosion-resistant valve core 6 is 75mm-125 mm.
On the basis of the scheme, in the stuffing box 4, the stuffing assembly 41, the isolating ring 42 and the stuffing gland 43 are all sleeved on the valve rod 2, the stuffing assembly 41 is divided into an upper layer and a lower layer through the isolating ring 42, and the stuffing assembly 41 and the stuffing gland 43 are fixedly connected into a whole.
On the basis of the above scheme, the clamp block assembly 7 comprises two clamp blocks fastened by bolts.
On the basis of the above scheme, the lipstick-type erosion-resistant valve core 6 is one of a cylindrical structure (see fig. 7), a petal-shaped structure (see fig. 5 and 6), a conical structure (see fig. 2), an inverted cone-shaped structure (see fig. 8) and a rib-type structure (see fig. 3 and 4).
On the basis of the scheme, the hardness of the material of the erosion-resistant valve seat 3 is 5-20 degrees higher than that of the lipstick type erosion-resistant valve core 6.
On the basis of the scheme, the erosion-resistant valve seat 3 is made of tungsten carbide or ceramic materials.
The utility model discloses an installation: the first step is as follows: assembling an erosion-resistant valve seat 3, and fixing the erosion-resistant valve seat 3 at the lower end of a lower flange of the angle-shaped valve body 1 by using a sealing gasket and a bolt; secondly, installing the lipstick type erosion-resistant valve core 6 and the valve rod 2 in the inner cavity of the angle-shaped valve body 1, installing the stuffing box 4 on a flange in the angle-shaped valve body 1, and then installing the stuffing assembly 41, the isolating ring 42 and the like in the stuffing box 4; and thirdly, mounting the pneumatic actuator 5 on a flange of the stuffing box 4, and fixing by using bolts and nuts.
The above-described embodiments merely represent one or more embodiments of the present invention, which are described in greater detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (6)
1. The long-service-life valve for treating the multiphase flow medium is characterized by comprising an angle-shaped valve body (1) and a valve rod (2), wherein an erosion-resistant valve seat (3) is arranged at the lower flange of the angle-shaped valve body (1), a packing box (4) is arranged at the middle flange of the angle-shaped valve body (1), and the valve rod (2) penetrates through the inside of the packing box (4) and is respectively connected with a pneumatic actuating mechanism (5) and a lipstick-type erosion-resistant valve core (6); wherein a packing gland (43) for sealing the valve rod (2), a packing assembly (41) and an isolating ring (42) are sequentially arranged in the packing box (4); the top end of the valve rod (2) is connected with the pneumatic actuating mechanism (5) through a butt clamp block assembly (7), and the tail end of the valve rod (2) is connected with the lipstick type erosion-resistant valve core (6); the erosion-resistant valve seat (3) is arranged in an inner cavity of the angle-shaped valve body (1) and is matched with the lipstick-shaped erosion-resistant valve core (6) to form a throttling surface, and a sealing surface far away from the throttling surface is arranged at the upper part of the lipstick-shaped erosion-resistant valve core (6).
2. The long-life valve for processing multiphase flow media according to claim 1, wherein inside the stuffing box (4), the stuffing assembly (41), the isolating ring (42) and the stuffing cover (43) are all sleeved on the valve rod (2), the stuffing assembly (41) is divided into an upper layer and a lower layer through the isolating ring (42), and the stuffing assembly (41) and the stuffing cover (43) are fixedly connected into a whole.
3. The long life valve for treating multiphase flow media according to claim 1, characterized in that the pair of clamp block assemblies (7) comprises two pair of clamp block assemblies (7) fastened by bolts.
4. The long life valve for handling multiphase flow media of claim 1, wherein the lipstick-type erosion resistant valve cartridge (6) is one of a cylindrical structure, a petal-shaped structure, a conical structure, an inverted cone-shaped structure, and a rib-type structure.
5. The long life valve for treating multiphase flow media of claim 1, wherein the erosion resistant valve seat (3) is made of a material having a hardness 5-20 degrees higher than that of the lipstick type erosion resistant valve core (6).
6. The long-life valve for treating multiphase flow media of claim 5, wherein the erosion-resistant valve seat (3) is made of tungsten carbide or ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921662226.2U CN210715971U (en) | 2019-09-29 | 2019-09-29 | Long-life valve for treating multiphase flow medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921662226.2U CN210715971U (en) | 2019-09-29 | 2019-09-29 | Long-life valve for treating multiphase flow medium |
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| Publication Number | Publication Date |
|---|---|
| CN210715971U true CN210715971U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921662226.2U Active CN210715971U (en) | 2019-09-29 | 2019-09-29 | Long-life valve for treating multiphase flow medium |
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| Country | Link |
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| CN (1) | CN210715971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779844A (en) * | 2020-07-21 | 2020-10-16 | 亿川科技(成都)有限责任公司 | Small flow regulating valve |
-
2019
- 2019-09-29 CN CN201921662226.2U patent/CN210715971U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779844A (en) * | 2020-07-21 | 2020-10-16 | 亿川科技(成都)有限责任公司 | Small flow regulating valve |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231030 Address after: No. 57 Changxin Road, Yangzhong Economic Development Zone, Zhenjiang City, Jiangsu Province, 212000 Patentee after: Jiangsu Juhang Valve Industry Technology Co.,Ltd. Address before: 102605 No.4, south 2nd Lane, XIAOZHANGZHUANG East Lane, Qingyundian Town, Daxing District, Beijing Patentee before: Li Zuowei |