CN212672411U - Black water valve capable of preventing valve body from being abraded - Google Patents
Black water valve capable of preventing valve body from being abraded Download PDFInfo
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- CN212672411U CN212672411U CN202021417544.5U CN202021417544U CN212672411U CN 212672411 U CN212672411 U CN 212672411U CN 202021417544 U CN202021417544 U CN 202021417544U CN 212672411 U CN212672411 U CN 212672411U
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Abstract
The utility model relates to a prevent black water valve of valve body wearing and tearing, including the valve gap, a valve body, the outlet joint pipe, the valve body is the tubular structure, the upper end opening and the valve gap connection of valve body, the side of valve body is equipped with the inlet joint pipe, the link of inlet joint pipe is equipped with access flange, the lower extreme opening and the outlet joint pipe intercommunication of valve body, the lower extreme open-ended of valve body is interior to be equipped with the ring disk seat along last lining, the valve body inside lining between ring disk seat and valve gap is equipped with the valve pocket protective sheath of tube-shape, valve pocket protective sheath and inlet joint pipe intercommunication, be equipped with the case in the valve pocket protective sheath, the case is connected with the one end of valve rod, the other end of valve rod upwards leads to. The utility model discloses a scheme of addding the protection component in the inside of valve body avoids valve body itself to suffer destruction, has long service life, uses, the low characteristics of maintenance cost.
Description
Technical Field
The utility model relates to a black water governing valve, in particular to prevent black water valve of valve body wearing and tearing belongs to oil, coal chemical industry valve field.
Background
The black water valve is generally used in high-pressure flash tank, vacuum flash tank, high-flash tank top separator and other equipment in a coal chemical system, and the black water valve is harsh in use condition, and the fluid medium of the black water valve mainly comprises high-temperature black water, slag water and grey water. The black water, the slag water and the grey water contain strong corrosive media such as chloride ions, ammonia, potassium salts, hydrogen sulfide or phosphoric acid, and the pressure difference between the front and the back of the valve is large. At the throttle opening of the valve, fluid media mixed with hard particles flow at high speed and have strong kinetic energy, so that streamline fine grooves are quickly flushed on the surfaces of a valve core or a valve seat and the like of the valve to form erosion. When the blocked flow occurs, the high-speed fluid generates flash evaporation or cavitation, and the medium releases great energy in the process of bubble aggregation and bursting in the valve cavity, so that the interior of the valve body, throttling elements and other parts are damaged strongly, and cavitation is formed. Therefore, the black water valve must meet the requirements of high corrosion resistance, high scouring resistance and high temperature resistance. However, the existing black water valve can not meet the requirements, so that the service life of the valve is short, and the use and maintenance costs are high.
SUMMERY OF THE UTILITY MODEL
The utility model discloses prevent that black water valve of valve body wearing and tearing from disclosing new scheme, the scheme of adopting to add the protection part in the inside of valve body avoids valve body itself to suffer destruction, has solved current like product life weak point, uses, the problem that the maintenance cost is high.
The utility model discloses prevent black water valve of valve body wearing and tearing includes the valve gap, a valve body, the outlet joint pipe, the valve body is the tubular structure, the upper end opening and the valve gap connection of valve body, the side of valve body is equipped with the inlet joint pipe, the link of inlet joint pipe is equipped with the access flange, the lower extreme opening and the outlet joint pipe intercommunication of valve body, the lower extreme open-ended of valve body is interior to be equipped with the ring disk seat along last lining, the valve body inside lining between ring disk seat and valve gap is equipped with the valve pocket protective sheath of tube-shape, valve pocket protective sheath and inlet joint pipe intercommunication, be equipped with the case in the valve pocket protective sheath, the case is connected with the one end of valve rod, the other end of valve rod upwards.
Further, the inboard spraying of the valve pocket protective sheath of this scheme has the tungsten carbide inoxidizing coating.
Further, the valve gap of this scheme includes the valve gap dish, and the central authorities of valve gap dish are equipped with valve rod channel, are equipped with the valve rod in the valve rod channel, and the upper segment of valve rod channel is equipped with the valve rod seal cover with the other end of valve rod within a definite time the lining, stretches out to be equipped with the seal cover mounting panel on the valve rod seal cover of valve rod channel upper end, and the other end of valve rod is worn out from the through-hole of seal cover mounting panel central authorities, and the seal cover.
Furthermore, the lower segment of the valve rod channel and one end of the valve rod are lined with guide sleeves, the inner lining of the guide sleeves is provided with scraper sleeves, and one end of the valve rod is removed by the scraper sleeves to form coking.
Further, the export connector pipe of this scheme includes the diffusion tube, venturi is the tubular structure that the internal diameter gradually expands along medium discharge direction, be equipped with the valve body flange on venturi's the entrance point, the valve body flange is connected with the lower extreme opening of valve body, the lower extreme opening of valve body flange and valve body is held between the card and is equipped with the entry end of diffusion tube, the inside intercommunication of ring valve seat and valve pocket protective sheath is passed through to the entry end of diffusion tube, venturi's entrance point is stretched into to the exit end of diffusion tube, be equipped with flange on venturi's the exit end, flange and external pipe connection.
Furthermore, the diffusion pipe in the scheme is a cylindrical structure with the inner diameter gradually expanding along the medium discharge direction.
The utility model discloses prevent that black water valve of valve body wearing and tearing adopts and avoids valve body itself to suffer destruction at the inside scheme of addding the protection part of valve body, has long service life, uses, the low characteristics of maintenance cost.
Drawings
FIG. 1 is a schematic view of a black water valve to prevent valve body wear.
FIG. 2 is a schematic view of the assembly of the bonnet, stem, and cartridge.
FIG. 3 is a schematic view of the assembly of the valve body, valve cavity protective sleeve, and annular valve seat.
FIG. 4 is a schematic view of an outlet connector tube.
Wherein 100 is a valve cover, 110 is a valve cover disc, 210 is a valve core, 220 is a valve rod, 230 is a valve rod sealing sleeve, 231 is a sealing sleeve mounting plate, 241 is a guide sleeve, 242 is a scraper sleeve, 300 is a valve body, 310 is a valve cavity protecting sleeve, 320 is an annular valve seat, 410 is a diffusion pipe, and 420 is a venturi pipe.
Detailed Description
As shown in fig. 1 and 3, the utility model discloses prevent black water valve of valve body wearing and tearing includes the valve gap, the valve body, the outlet joint pipe, the valve body is the tubular structure, the upper end opening and the valve gap connection of valve body, the side of valve body is equipped with the inlet joint pipe, the link of inlet joint pipe is equipped with the access connection flange, the lower extreme opening and the outlet joint pipe intercommunication of valve body, the lower extreme open-ended of valve body is equipped with the ring-shaped disk seat along the upper liner in, the valve body inside lining between ring-shaped disk seat and valve gap is equipped with the valve pocket protective sheath of tube-shape, valve pocket protective sheath and inlet joint pipe intercommunication, be equipped with the case in the valve pocket protective sheath, the case is connected with the one end of valve rod, the. Above-mentioned scheme adopts the scheme of addding the protective member in the inside of valve body to avoid valve body itself to suffer destruction, utilize the valve gap to push down the valve pocket protective sheath, compress tightly the annular disk seat by the valve pocket protective sheath again and fix edge in the lower extreme opening of valve body, as long as unload the valve gap earlier during dismouting, take out valve pocket protective sheath and annular disk seat in proper order again, just can realize changing the case in real time, the valve pocket protective sheath, the annular disk seat, and need not to dismantle the back with whole platform valve and change, the service life of valve is improved, the use of valve is reduced, the maintenance cost. Based on the above scheme, in order to improve the resistance of the valve cavity protective sleeve to erosion, the inner side of the valve cavity protective sleeve is coated with a tungsten carbide protective layer.
In order to realize the function of valve gap, satisfy the requirement of seal assembly, as shown in fig. 2, the valve gap of this scheme includes the valve gap dish, and the central authorities of valve gap dish are equipped with the valve rod passageway, are equipped with the valve rod in the valve rod passageway, and the upper segment of valve rod passageway is equipped with the valve rod seal cover with the other end interlining of valve rod, is equipped with the seal cover mounting panel on the valve rod seal cover of stretching out the valve rod passageway upper end, and the other end of valve rod is worn out from the through-hole of seal cover mounting panel central authorities. Based on above scheme, in order to stabilize case, in time take out the coking on the surface of valve rod, prevent to block and die, as shown in fig. 2, the lower section of the valve rod passageway of this scheme and the one end of valve rod are lined with the uide bushing between, and the inside lining of uide bushing is equipped with the scraper cover, and the scraper cover gets rid of the one epaxial coking of valve rod.
In order to realize the function of the outlet joint pipe, less cavitation is to the destruction of low reaches pipeline, eliminate the potential safety hazard, as shown in fig. 4, the outlet joint pipe of this scheme includes the diffusion tube, venturi is the tubular structure that the internal diameter gradually expands along medium discharge direction, be equipped with the valve body flange on venturi's the entrance point, the valve body flange is connected with the lower extreme opening of valve body, the card is equipped with the entry end of diffusion tube between the lower extreme opening of valve body flange and valve body, the entry end of diffusion tube passes through the inside intercommunication of ring disk seat with the valve pocket protective sheath, the exit end of diffusion tube stretches into venturi's entrance point, be equipped with flange on venturi's the exit end, flange and outside pipe. Based on the above, in order to improve the discharge effect of the diffuser, as shown in fig. 4, the diffuser of this embodiment has a cylindrical structure in which the inner diameter is gradually enlarged in the medium discharge direction.
The problem that the valve body inner chamber is easily eroded is solved through addding the valve pocket protective sheath to this scheme, and the inner wall spraying tungsten carbide of valve pocket protective sheath is difficult for being eroded, if produce the damage, as long as change the valve pocket protective sheath and just can reach the anti erosion purpose of recovering the valve body, greatly reduced use cost for the maintenance duration.
The black water valve for preventing the valve body from being abraded by the scheme is not limited to the content disclosed in the specific embodiment, the technical scheme presented in the embodiment can be extended based on the understanding of the skilled person in the field, and the simple alternative scheme made by the skilled person in the field according to the scheme and the common knowledge also belongs to the scope of the scheme.
Claims (6)
1. The utility model provides a prevent black water valve of valve body wearing and tearing, characterized by includes valve gap, valve body, export connector pipe, the valve body is the tubular structure, the upper end opening of valve body with valve gap connection, the side of valve body is equipped with the import connector pipe, the link of import connector pipe is equipped with the access flange, the lower extreme opening of valve body with export connector pipe intercommunication, the lower extreme open-ended of valve body is followed the upper liner and is equipped with annular disk seat, annular disk seat with between the valve gap the valve body inside lining is equipped with the valve pocket protective sheath of tube-shape, the valve pocket protective sheath with import connector pipe intercommunication, be equipped with the case in the valve pocket protective sheath, the case is connected with the one end of valve rod, the other end of valve rod warp the valve gap upwards leads to, through the valve rod drive the output flow of black water valve is.
2. The black water valve for preventing the valve body from being abraded as claimed in claim 1, wherein a tungsten carbide protective layer is sprayed on the inner side of the valve cavity protective sleeve.
3. The black water valve for preventing the valve body from being abraded as claimed in claim 1, wherein the valve cover comprises a valve cover disc, a valve rod channel is arranged in the center of the valve cover disc, the valve rod is arranged in the valve rod channel, a valve rod sealing sleeve is arranged between the upper section of the valve rod channel and the other end of the valve rod in a lining mode, a sealing sleeve mounting plate is arranged on the valve rod sealing sleeve extending out of the upper end of the valve rod channel, the other end of the valve rod penetrates out of a through hole in the center of the sealing sleeve mounting plate, and the sealing sleeve mounting plate is connected with the valve cover disc through a bolt.
4. The black water valve for preventing the abrasion of the valve body as claimed in claim 3, wherein a guide sleeve is lined between the lower section of the valve rod channel and one end of the valve rod, a scraper sleeve is lined inside the guide sleeve, and the scraper sleeve removes coking on one end of the valve rod.
5. The black water valve for preventing valve body abrasion according to claim 1, wherein the outlet joint pipe comprises a diffusion pipe and a venturi pipe, the venturi pipe is a tubular structure with an inner diameter gradually expanding along a medium discharge direction, a valve body flange is arranged on an inlet end of the venturi pipe, the valve body flange is connected with a lower end opening of the valve body, the valve body flange is clamped with an inlet end of the diffusion pipe between the lower end opening of the valve body, an inlet end of the diffusion pipe passes through the annular valve seat and the inside of the valve cavity protective sleeve are communicated, an outlet end of the diffusion pipe extends into the inlet end of the venturi pipe, a connecting flange is arranged on an outlet end of the venturi pipe, and the connecting flange is connected with an external pipeline.
6. The black water valve for preventing abrasion of a valve body according to claim 5, wherein the diffuser is a cylindrical structure having an inner diameter gradually enlarged in a medium discharge direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021417544.5U CN212672411U (en) | 2020-07-17 | 2020-07-17 | Black water valve capable of preventing valve body from being abraded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021417544.5U CN212672411U (en) | 2020-07-17 | 2020-07-17 | Black water valve capable of preventing valve body from being abraded |
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| Publication Number | Publication Date |
|---|---|
| CN212672411U true CN212672411U (en) | 2021-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021417544.5U Active CN212672411U (en) | 2020-07-17 | 2020-07-17 | Black water valve capable of preventing valve body from being abraded |
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| CN (1) | CN212672411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635985A (en) * | 2022-03-22 | 2022-06-17 | 重庆川武仪表有限公司 | Wear-resistant black water valve |
-
2020
- 2020-07-17 CN CN202021417544.5U patent/CN212672411U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635985A (en) * | 2022-03-22 | 2022-06-17 | 重庆川武仪表有限公司 | Wear-resistant black water valve |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A black water valve to prevent valve body wear Effective date of registration: 20221008 Granted publication date: 20210309 Pledgee: Chongming Sub branch of Shanghai Rural Commercial Bank Co.,Ltd. Pledgor: Shanghai Datong Instrument Co.,Ltd. Registration number: Y2022310000278 |