CN220688072U - Scour-proof single-seat regulating valve - Google Patents
Scour-proof single-seat regulating valve Download PDFInfo
- Publication number
- CN220688072U CN220688072U CN202322272116.8U CN202322272116U CN220688072U CN 220688072 U CN220688072 U CN 220688072U CN 202322272116 U CN202322272116 U CN 202322272116U CN 220688072 U CN220688072 U CN 220688072U
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 238000009991 scouring Methods 0.000 claims abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007363 regulatory process Effects 0.000 description 1
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Abstract
The utility model relates to an anti-scouring single-seat regulating valve which comprises a valve body, a valve cover, a valve core and a valve seat, wherein the valve seat is arranged in the middle of the valve body, the valve core is arranged on the valve seat and is in sealing fit with the valve seat, the valve cover is arranged at the upper end of the valve body, the valve core is designed to be cylindrical, a circular groove is formed in the lower end of the valve core, a plurality of through holes are formed in the periphery of the valve core to form a cage shape, the plurality of through holes are communicated with the inner part of the circular groove and the outer peripheral surface of the valve core, an annular bulge is designed in the periphery of the upper end of the outer side of the valve core, an outer conical surface in sealing fit with the inner sealing surface of the valve seat is designed at the lower end of the annular bulge, and the outer peripheral surface of the valve core is in sliding sealing fit with the middle circular hole of the valve seat. The valve has the advantages that the design is ingenious, the structure is reasonable and compact, a plurality of through holes are processed on the valve core, and the medium flows out from the cavity inside the valve core in the horizontal direction through the through holes on the valve core; the medium does not contact the valve seat, and flows out from the valve core through hole in the horizontal direction, so that the valve core sealing surface is not flushed, the sealing surface is protected, and the service life of the valve is prolonged.
Description
Technical Field
The utility model relates to the field of single-seat regulating valves, in particular to an anti-scouring single-seat regulating valve.
Background
At present, the traditional single-seat regulating valve has the following problems:
1, the medium flows through the circulation clearance between the valve core and the valve seat, and the sealing surfaces of the valve core and the valve seat are directly flushed by the medium, so that the sealing performance and the service life of the valve are affected.
And 2, a guide sleeve is arranged between the valve body and the valve cover to position and guide the valve core.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an anti-scouring single-seat regulating valve which is ingenious in design and reasonable and compact in structure.
The technical scheme of the utility model is as follows:
the utility model provides an scour protection single seat governing valve, it includes the valve body, the valve gap, the case, the disk seat is installed in the middle of the valve body, case installation disk seat top and case and disk seat sealing fit, the valve gap is installed in the valve body upper end, the case is designed cylindric and case lower extreme is inside to be opened there is the circular slot, case a week is opened there is a plurality of through-holes to form the cage form, a plurality of through-holes communicate the outer peripheral face of circular slot inside and case, case outside upper end a week is designed to have annular arch, annular arch lower extreme design has the outer conical surface with the interior sealing surface sealing fit of disk seat, the outer peripheral face of case and the middle round hole sliding seal fit of disk seat.
The valve seat design be the annular body and the annular body upper end outside design has annular pressing platform, still designs a word form breach or cross form breach above the annular pressing platform, the design of annular body lower extreme has the external screw thread, the inside lower extreme of valve body designs has the import runner, the inside upper end design of valve body has the export runner, designs a round hole between import runner and the export runner, the inside design of round hole has the internal screw thread, the valve seat passes through the external screw thread rotation to be installed in the internal screw thread of round hole, and still installs sealed pad between annular pressing platform and the round hole upper port portion outside.
The lower end of the circular ring-shaped body of the valve seat is provided with a flared bell mouth.
The upper end of the circular hole in the circular body of the valve seat is provided with an annular conical inner sealing surface which is in sealing fit with the outer conical surface of the valve core, and the outer peripheral surface of the valve core is in sliding sealing fit with the circular hole in the middle of the circular body of the valve seat.
The through holes are arranged in five rows from top to bottom.
The utility model has the advantages that:
1. the valve core is designed into a cage shape, a plurality of through holes are processed on the cage-shaped valve core, and when the valve core is opened upwards, a medium flows out from the cavity in the valve core in a horizontal direction through the through holes on the valve core; in the process, the medium does not contact the valve seat, and simultaneously, the medium flows out of the valve core through hole in the horizontal direction and does not scour the valve core sealing surface; thereby achieving the effects of protecting the sealing surface and prolonging the service life of the valve.
2. The guide sleeve of the traditional single-seat regulating valve is canceled, the cage-shaped valve core is not separated from the valve seat in the whole stroke regulating process, the valve seat plays a role in positioning and guiding the valve core, one guide sleeve is omitted compared with the traditional single-seat regulating valve, and the cost is reduced.
Drawings
Fig. 1 is a schematic diagram of the present utility model.
Fig. 2 is an enlarged partial schematic view of the valve element and valve seat of the present utility model.
FIG. 3 is a schematic top view of a valve seat of the present utility model.
Detailed Description
Referring to the accompanying drawings 1-3, the anti-scouring single-seat regulating valve comprises a valve body 1, a valve cover 2, a valve core 3 and a valve seat 4, wherein the valve seat 4 is arranged in the middle of the valve body 1, the valve core 3 is arranged on the valve seat 4 and is in sealing fit with the valve seat 4, the valve cover 2 is arranged at the upper end of the valve body 1, the valve core 3 is designed to be cylindrical, a circular groove is formed in the lower end of the valve core 3, a plurality of through holes 31 are formed in the periphery of the valve core 3 to form a cage shape, the inner parts of the circular grooves are communicated with the outer peripheral surface of the valve core 3, an annular bulge is designed in the periphery of the upper end of the outer side of the valve core 3, an outer conical surface 32 in sealing fit with the inner sealing surface of the valve seat 4 is designed at the lower end of the annular bulge, and the outer peripheral surface of the valve core 3 is in sliding sealing fit with the middle circular hole of the valve seat 4.
The valve seat 4 is designed into a circular ring body, an annular pressing table 41 is designed on the outer side of the upper end of the circular ring body, a character-shaped notch or a cross-shaped notch 42 is further designed on the annular pressing table 41, an external thread is designed on the lower end of the circular ring body, an inlet runner 5 is designed on the lower end of the inner portion of the valve body 1, an outlet runner 7 is designed on the upper end of the inner portion of the valve body 1, a round hole is designed between the inlet runner 5 and the outlet runner 7, an internal thread is designed in the round hole, the valve seat 4 is rotatably mounted in the internal thread of the round hole through the external thread, and a sealing gasket 6 is further mounted between the annular pressing table 41 and the outer side of the upper port portion of the round hole.
The lower end of the circular ring-shaped body of the valve seat 4 is provided with a flared bell mouth.
The upper end of the circular hole in the circular body of the valve seat 4 is provided with an annular conical inner sealing surface which is in sealing fit with the outer conical surface 32 of the valve core 3, and the outer peripheral surface of the valve core 3 is in sliding sealing fit with the circular hole in the middle of the circular body of the valve seat 4.
The through holes 31 are arranged in five rows from top to bottom.
When the valve core is opened upwards, a medium enters from the inlet flow channel of the valve core and then enters the circular groove of the valve core, and flows out to the outlet flow channel in the horizontal direction through the through hole on the valve core; in the process, the medium does not contact the valve seat, and simultaneously, the medium flows out of the through hole of the valve core in the horizontal direction and does not wash the sealing surface of the valve core, so that the effects of protecting the sealing surface and prolonging the service life of the valve are achieved, the valve core moves in the valve seat in an up-and-down guiding way, the valve core is driven to move up and down by the actuating mechanism control valve rod of the regulating valve, the valve core is ensured not to be separated from the valve seat, and the actuating mechanism (actuator) belongs to the prior art; the through hole on the valve core slowly rises, and the through hole is separated from the central hole of the valve seat and communicated, so that the regulation effect is realized.
Claims (5)
1. The anti-scouring single-seat regulating valve is characterized by comprising a valve body, a valve cover, a valve core and a valve seat, wherein the valve seat is arranged in the middle of the valve body, the valve core is arranged on the valve seat and is in sealing fit with the valve seat, the valve cover is arranged at the upper end of the valve body, the valve core is designed to be cylindrical, a circular groove is formed in the lower end of the valve core, a plurality of through holes are formed in the periphery of the valve core, the plurality of through holes are communicated with the inner part of the circular groove and the outer peripheral surface of the valve core, an annular bulge is designed in the periphery of the upper end of the outer side of the valve core, the lower end of the annular bulge is designed to be an outer conical surface in sealing fit with the inner sealing surface of the valve seat, and the outer peripheral surface of the valve core is in sliding sealing fit with the middle circular hole of the valve seat.
2. The anti-scouring single-seat regulating valve according to claim 1, wherein the valve seat is designed into a circular ring body, an annular pressing table is designed on the outer side of the upper end of the circular ring body, a straight-line notch or a cross-shaped notch is further designed on the annular pressing table, an external thread is designed on the lower end of the circular ring body, an inlet runner is designed on the lower end inside the valve body, an outlet runner is designed on the upper end inside the valve body, a round hole is designed between the inlet runner and the outlet runner, an internal thread is designed inside the round hole, the valve seat is rotatably installed in the internal thread of the round hole through the external thread, and a sealing gasket is further installed between the annular pressing table and the outer side of the upper port part of the round hole.
3. The anti-scouring single-seat regulating valve according to claim 2, wherein the lower end of the circular ring-shaped body of the valve seat is provided with a flared bell mouth.
4. The anti-scouring single-seat regulating valve according to claim 2, wherein the upper end of the circular ring-shaped body inner round hole of the valve seat is provided with an annular cone-shaped inner sealing surface which is in sealing fit with the outer cone-shaped surface of the valve core, and the outer peripheral surface of the valve core is in sliding sealing fit with the circular ring-shaped body middle round hole of the valve seat.
5. The anti-scour single seat regulating valve according to claim 1, wherein the plurality of through holes are arranged in five rows from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322272116.8U CN220688072U (en) | 2023-08-23 | 2023-08-23 | Scour-proof single-seat regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322272116.8U CN220688072U (en) | 2023-08-23 | 2023-08-23 | Scour-proof single-seat regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220688072U true CN220688072U (en) | 2024-03-29 |
Family
ID=90370069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322272116.8U Active CN220688072U (en) | 2023-08-23 | 2023-08-23 | Scour-proof single-seat regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220688072U (en) |
-
2023
- 2023-08-23 CN CN202322272116.8U patent/CN220688072U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |