CN210566341U - Multi-stage wear-resistant angle valve for treating slag-containing medium - Google Patents
Multi-stage wear-resistant angle valve for treating slag-containing medium Download PDFInfo
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- CN210566341U CN210566341U CN201921662176.8U CN201921662176U CN210566341U CN 210566341 U CN210566341 U CN 210566341U CN 201921662176 U CN201921662176 U CN 201921662176U CN 210566341 U CN210566341 U CN 210566341U
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- 239000002893 slag Substances 0.000 title claims abstract description 13
- 238000012856 packing Methods 0.000 claims abstract description 24
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 210000004907 gland Anatomy 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000006837 decompression Effects 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 9
- 238000007689 inspection Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 7
- 230000003628 erosive effect Effects 0.000 description 5
- 238000002309 gasification Methods 0.000 description 5
- 239000010866 blackwater Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000010797 grey water Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000005514 two-phase flow Effects 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 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
- 238000012545 processing Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The utility model discloses a multistage wear-resisting angle valve for handling slag-containing medium, including angle valve body and valve rod, multistage relief pressure valve seat subassembly is installed to the lower flange inner chamber of angle valve body, and the well flange department of angle valve body installs the packing box, and the upper end of packing box is provided with the support, and the upper end of support is installed pneumatic actuator, and the output of pneumatic actuator passes the support and is connected with the valve rod through to the clamp block subassembly, and the valve rod runs through the packing box inside and is connected with the tungsten carbide case, installs the sealing pair of mutually supporting on tungsten carbide case and the multistage relief pressure valve seat subassembly; and a packing gland, a packing assembly and an isolating ring of the sealing valve rod are sequentially arranged in the packing box. The utility model has the advantages that the inspection and the replacement of the internal parts can be carried out after the connecting and fastening bolts of the middle flange of the valve body are loosened; the angle valve with the multistage pressure reduction structure effectively prolongs the service life of the angle valve and improves the safe and stable operation period of the angle valve.
Description
Technical Field
The utility model relates to a coal chemical industry technical field especially relates to a multistage wear-resisting angle valve for handling contain sediment medium.
Background
The chemical black water mainly refers to a solid-liquid mixture with coal slag formed by a coal gasification system, and most of the mixture is liquid; the black water medium has the characteristics of high suspended matter, high temperature, high alkali, high hardness and the like, and contains strong corrosive media such as ammonia, chloride ions, hydrogen sulfide, phosphoric acid and the like, and high-hardness solid particles generated by gasification reaction, wherein the content of the particles can reach 4 percent at most. After the solid particles are deposited, the throttle of the valve is often blocked, and the fluid at the throttle is mixed with the solid particles with higher hardness to move at high speed, so that the parts of valve pipe fittings such as a valve core, a valve seat and the like are seriously eroded.
A multi-stage wear-resistant angle valve for treating slag-containing media is mainly applied to a black water and grey water treatment working section in the field of coal chemical industry, namely used for treating black water and grey water generated by a gasification furnace and a washing tower and ensuring the safe liquid level of a chilling chamber of the gasification furnace.
At present, a multistage wear-resistant angle valve is arranged on a pipeline at the outlet of a chilling chamber of a gasification furnace and is connected with the pipeline through a flange; and current multistage wear-resisting angle valve realizes the control of flow and liquid level by single seat governing valve, and single seat governing valve leads to the valve to reduce pressure the back erosion serious because of its self performance's reason, and the flow can not be controlled about 1 month after the operation of going on the production line appears promptly, leaks the big scheduling problem of volume, leads to the device frequently to stop the car and overhauls, influences the normal operating of device.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model discloses a multistage wear-resistant angle valve for processing slag-containing medium, which can check and replace the internal parts after loosening the connecting and fastening bolts of the middle flange of the valve body; the angle valve with the multistage pressure reduction structure effectively prolongs the service life of the angle valve, improves the safe and stable operation period of the angle valve, reduces the maintenance workload of the angle valve, and further improves the production efficiency of the whole device.
The utility model discloses a realize through following technical scheme: a multi-stage wear-resistant angle valve for treating slag-containing media comprises an angle-shaped valve body and a valve rod, wherein a multi-stage pressure reducing valve seat assembly is installed in an inner cavity of a lower flange of the angle-shaped valve body, a packing box is installed at a middle flange of the angle-shaped valve body, a support is arranged at the upper end of the packing box, a pneumatic actuator is installed at the upper end of the support, an output end of the pneumatic actuator penetrates through the support and is connected with the valve rod through a pair of clamping block assemblies, the valve rod penetrates through the interior of the packing box and is connected with a tungsten carbide valve core, and sealing pairs matched with each other are installed on the; and a packing gland, a packing assembly and an isolating ring of the sealing valve rod are sequentially arranged in the packing box.
Through the technical scheme, the adoption of the multi-stage pressure reducing valve seat assembly enables the medium to consume internal energy through multi-stage pressure reduction, the flow velocity of the medium passing through the valve core, the valve seat sealing surface and the downstream multi-stage pressure reducing internal part is greatly reduced, for example, under a typical working condition, the maximum flow velocity of a structure without a multi-stage pressure reducing valve seat can reach about 150-200 m/s, and after the multi-stage pressure reducing valve seat is used, the flow velocity is reduced to 70-100 m/s. According to experience, the square of the flow rate and the erosion rate are in a linear relationship, and the higher the flow rate, the higher the erosion rate, so that the erosion of the valve internals is effectively reduced, and the service life of the valve is prolonged.
Furthermore, the clamping block aligning component comprises a clamping block aligning body and a fastening bolt, wherein the clamping block aligning body is respectively connected with the pneumatic actuating mechanism and the valve rod, and the fastening bolt is used for fastening the clamping block aligning body.
Through the technical scheme, the design has the anti-rotation mechanism to on the clamp splice, and has 4 fastening bolt of group to on the clamp splice, can fasten valve rod and cylinder rod respectively to the adjustment valve stroke, compare with the current to the clamp splice of other structures, the utility model discloses simple to operate can be used to the adjustment stroke to have the anti-rotation function.
Further, the multi-stage pressure reducing valve seat assembly comprises a central flow channel opposite to an outlet of the tungsten carbide valve core and a flange fixedly connected with a lower flange of the angle-shaped valve body; wherein the central flow passage is a multistage cascade decompression structure.
By the technical scheme, the flow velocity passing through the valve core and the valve seat can be reduced to 70-100 m/s from about 150-200 m/s, the erosion of the valve inner part is effectively reduced, and the service life of the valve is prolonged.
Furthermore, the central flow channel is a three-stage series type pressure reducing flow channel consisting of d1 stages, d2 stages and d3 stages from top to bottom, and the corresponding pore sizes of the d1 stages, d2 stages and d3 stages of the central flow channel are d1 stages > d2 stages > d3 stages, d1 stages < d2 stages < d3 stages, d1 stages < d2 stages > d3 stages, or d1 stages > d2 stages < d3 stages.
Through the technical scheme, the medium flow rate can be effectively reduced by corresponding pressure reduction methods for different media, including liquid, gas-liquid two-phase flow, gas-solid-liquid three-phase flow and media which are easy to gasify and flash. For example, for the medium easy to flash, a multistage pressure reduction structure which is gradually reduced is adopted, so that the flash evaporation rate in the pressure reduction process is reduced, the proportion of two-phase flow is reduced, and the flow speed of the medium is reduced.
Furthermore, the central flow passage is a multi-stage spiral pressure reduction structure, and the aperture in the multi-stage spiral pressure reduction structure is gradually enlarged, or enlarged first and then reduced, or gradually reduced.
Through the technical scheme, the flow velocity of the medium can be effectively reduced by corresponding pressure reduction methods for different media.
Compared with the prior art, the utility model has the advantages of it is following:
①, the internal parts can be checked and replaced after the connecting and fastening bolts of the middle flange of the valve body are loosened;
secondly, the angle valve with the multi-stage pressure reduction structure is adopted, so that the service life of the angle valve is effectively prolonged, the safe and stable operation period of the angle valve is prolonged, the maintenance workload of the angle valve is reduced, and the production efficiency of the whole device is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the spiral multi-stage valve seat of the present invention;
FIG. 3 is a schematic structural diagram of the present invention showing the aperture size of d1 level > d2 level > d3 level;
FIG. 4 is a schematic structural view of the present invention showing that the pore size is d1 < d2 < d 3;
FIG. 5 is a schematic structural view of the present invention showing that the aperture size is d1 < d2 > d 3;
fig. 6 is a schematic structural diagram of the present invention, in which the pore size is d1 level > d2 level < d3 level.
In the figure, 1, an angle type valve body; 11. a lower flange; 12. a middle flange; 2. a valve stem; 3. a multi-stage pressure reducing valve seat assembly; 31. a center flow passage; 32. a flange; 4. a stuffing box; 41. a packing gland; 42. a packing assembly; 43. an isolating ring; 5. a support; 6. a pneumatic actuator; 7. clamping block components; 71. the clamp block bodies are matched; 72. fastening a bolt; 8. a tungsten carbide valve core.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
A multi-stage wear-resistant angle valve for treating slag-containing media comprises an angle valve body 1 and a valve rod 2, wherein a multi-stage pressure reducing valve seat assembly 3 is installed in an inner cavity of a lower flange 11 of the angle valve body 1, a stuffing box 4 is installed at a middle flange 12 of the angle valve body 1, a support 5 is arranged at the upper end of the stuffing box 4, a pneumatic actuator 6 is installed at the upper end of the support 5, the output end of the pneumatic actuator 6 penetrates through the support 5 and is connected with the valve rod 2 through a butt clamp block assembly 7, the valve rod 2 penetrates through the interior of the stuffing box 4 and is connected with a tungsten carbide valve core 8, and a sealing pair which is matched with each other is installed on the tungsten carbide valve core 8 and the multi-stage pressure; the stuffing box 4 is internally provided with a stuffing gland 41 for sealing the valve rod 2, a stuffing assembly 42 and an isolating ring 43 in sequence.
On the basis of the above scheme, as shown in fig. 1, the packing assembly 42, the isolating ring 43 and the packing gland 41 are all sleeved on the valve rod 2, the packing assembly 42 is divided into an upper layer and a lower layer by the isolating ring 43, and the packing assembly 42 and the packing gland 41 are fixedly connected into a whole, so that the packing gland 41 compresses the packing assembly 42 to keep the valve rod 2 sealed under the action of the up-and-down movement of the valve rod 2.
On the basis of the scheme, as shown in fig. 1, the multistage reducing valve seat assembly 3 is installed in a hole of a lower flange 11 of the angle-type valve body 1 and is attached to the lower flange 11; because the flange 32 is arranged on the multistage pressure reducing valve seat assembly 3, the flange 32 and the lower flange 11 are fixed by 4 bolts, and the multistage pressure reducing valve seat assembly 3 is further fixed on the angle-shaped valve body 1; the valve rod 2 is installed from the upper portion of the angle type valve body 1, then the stuffing box 4 is installed on the middle flange 12 of the angle type valve body 1, the valve rod 2 penetrates through the axis of the stuffing box 4 and is connected with the actuating mechanism into a whole through the pair of clamping blocks, and the valve rod 2 moves up and down under the driving of the actuating mechanism.
As shown in fig. 1, the pair block assembly 7 includes a pair block body 71 connected to the pneumatic actuator 6 and the valve stem 2, respectively, and a fastening bolt 72 fastening the pair block body 71.
On the basis of the scheme, as shown in fig. 1, the multistage pressure reducing valve seat assembly 3 comprises a central flow passage 31 opposite to an outlet of the tungsten carbide valve core 8 and a flange 32 fixedly connected with a lower flange 11 of the angle type valve body 1; wherein the central flow passage 31 is a multistage serial decompression structure.
On the basis of the above scheme, as shown in fig. 1, fig. 3, fig. 4, fig. 5 and fig. 6, the central flow channel 31 is a three-stage cascade decompression flow channel composed of d1 stages, d2 stages and d3 stages from top to bottom, and the aperture sizes of the d1 stages, d2 stages and d3 stages of the central flow channel 31 are d1 stages > d2 stages > d3 stages (see fig. 3), or d1 stages < d2 stages < d3 stages (see fig. 4), or d1 stages < d2 stages > d3 stages (see fig. 5), or d1 stages > d2 stages < d3 stages (see fig. 6).
On the basis of the above scheme, as shown in fig. 1 and fig. 2, the central flow passage 31 is a multi-stage spiral pressure reducing structure, and the hole diameter in the multi-stage spiral pressure reducing structure is gradually enlarged, or enlarged first and then reduced, or gradually reduced.
The utility model discloses an installation: the first step is as follows: assembling a multi-stage pressure reducing valve seat assembly 3, and fixing the multi-stage pressure reducing valve seat assembly 3 on a lower flange 11 of the angle-shaped valve body 1 by using a sealing gasket and bolts; the second step is that: installing the valve rod 2 assembly into the inner cavity of the angle valve body 1, then installing the stuffing box 4 on the middle flange 12 of the angle valve body 1, and enabling the valve rod 2 to penetrate through the center of the stuffing box 4; the third step: the pneumatic actuator 6 is mounted to the stuffing box 4 and the valve stem 2 and the pneumatic actuator 6 are connected together by the pair of clamp block assemblies 7.
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 (5)
1. The multistage wear-resistant angle valve for treating slag-containing media is characterized by comprising an angle-shaped valve body (1) and a valve rod (2), wherein a multistage pressure reducing valve seat assembly (3) is installed in an inner cavity of a lower flange (11) of the angle-shaped valve body (1), a stuffing box (4) is installed at a middle flange (12) of the angle-shaped valve body (1), a support (5) is arranged at the upper end of the stuffing box (4), a pneumatic actuating mechanism (6) is installed at the upper end of the support (5), the output end of the pneumatic actuating mechanism (6) penetrates through the support (5) and is connected with the valve rod (2) through a pair of clamping block assemblies (7), the valve rod (2) penetrates through the interior of the stuffing box (4) and is connected with a tungsten carbide valve core (8), and sealing pairs matched with each other are installed on the tungsten carbide valve core (8) and the multistage pressure; and a packing gland (41) of the sealing valve rod (2), a packing assembly (42) and an isolating ring (43) are sequentially arranged in the packing box (4).
2. The multi-stage wear-resistant angle valve for the treatment of slag-containing media according to claim 1, characterized in that the counter block assembly (7) comprises a counter block body (71) connected with the pneumatic actuator (6), the valve stem (2), respectively, and a fastening bolt (72) fastening the counter block body (71).
3. The multi-stage wear-resistant angle valve for treating slag-containing media of claim 1, wherein the multi-stage pressure reducing valve seat assembly (3) comprises a central flow passage (31) opposite to the outlet of the tungsten carbide valve core (8), and a flange (32) fixedly connected with a lower flange (11) of the angle valve body (1); wherein the central flow passage (31) is a multistage cascade decompression structure.
4. The multi-stage wear-resistant angle valve for treating slag-containing media of claim 3, wherein the central flow channel (31) is a three-stage cascade decompression flow channel consisting of d1, d2 and d3 stages from top to bottom, and the aperture sizes of the d1, d2 and d3 stages of the central flow channel (31) are d1 and d2 and d3 stages, or d1 and d2 and d3 stages, or d1 and d2 and d3 stages, or d1 and d2 and d3 stages.
5. The multi-stage wear-resistant angle valve for treating slag-containing media of claim 3, characterized in that the central flow channel (31) is a multi-stage spiral pressure reducing structure, and the hole diameter in the multi-stage spiral pressure reducing structure is gradually enlarged, or enlarged and then reduced, or gradually reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921662176.8U CN210566341U (en) | 2019-09-29 | 2019-09-29 | Multi-stage wear-resistant angle valve for treating slag-containing medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921662176.8U CN210566341U (en) | 2019-09-29 | 2019-09-29 | Multi-stage wear-resistant angle valve for treating slag-containing medium |
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| Publication Number | Publication Date |
|---|---|
| CN210566341U true CN210566341U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921662176.8U Active CN210566341U (en) | 2019-09-29 | 2019-09-29 | Multi-stage wear-resistant angle valve for treating slag-containing medium |
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| CN (1) | CN210566341U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639094A (en) * | 2021-08-28 | 2021-11-12 | 杭州富阳良工仪表有限公司 | Cascade type multi-stage pressure reduction regulating valve |
| CN116181934A (en) * | 2023-01-14 | 2023-05-30 | 安徽荣达阀门有限公司 | Low-resistance backflow preventer |
-
2019
- 2019-09-29 CN CN201921662176.8U patent/CN210566341U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639094A (en) * | 2021-08-28 | 2021-11-12 | 杭州富阳良工仪表有限公司 | Cascade type multi-stage pressure reduction regulating valve |
| CN113639094B (en) * | 2021-08-28 | 2023-11-03 | 杭州富阳良工仪表有限公司 | Cascade type multi-stage pressure reducing regulating valve |
| CN116181934A (en) * | 2023-01-14 | 2023-05-30 | 安徽荣达阀门有限公司 | Low-resistance backflow preventer |
| CN116181934B (en) * | 2023-01-14 | 2023-08-15 | 安徽荣达阀门有限公司 | Low-resistance backflow preventer |
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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 |