CN210318588U - Replaceable bypass valve - Google Patents
Replaceable bypass valve Download PDFInfo
- Publication number
- CN210318588U CN210318588U CN201921293007.1U CN201921293007U CN210318588U CN 210318588 U CN210318588 U CN 210318588U CN 201921293007 U CN201921293007 U CN 201921293007U CN 210318588 U CN210318588 U CN 210318588U
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- Prior art keywords
- valve
- seat
- clack
- valve clack
- hole
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- 210000004907 gland Anatomy 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 241000446313 Lamella Species 0.000 claims 2
- 210000001503 joint Anatomy 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model belongs to a valve for pipeline operation, in particular to a replaceable bypass valve which is arranged in a valve body and comprises a gland, a valve clack seat, a valve clack and a valve seat, wherein the valve clack seat is connected with the inner part of the valve body by screw thread, one side of the valve clack seat is provided with the valve seat which is connected with the inner part of the valve body in a sealing way, the other side is provided with the gland which is connected with the inner part of the valve body by screw thread, and the gland is abutted against the other side; the valve clack is in threaded connection with the valve clack seat, one end of the valve clack is processed into a hexagonal wrench opening, the valve clack is screwed through the hexagonal wrench, axial reciprocating movement of the valve clack is achieved, and the other end of the valve clack is in sealing abutting connection with the valve seat in the closed state of the bypass valve. The utility model discloses simple structure, performance safe and reliable are convenient for change, and sealing performance is good.
Description
Technical Field
The utility model belongs to the valve for the pipe-line work, specifically speaking are removable bypass valve.
Background
At present, bypass pressure relief devices of three-piece type special valves for opening and plugging in pipeline maintenance and emergency repair are all in a sealing form of a valve body and cannot be replaced, and the sealing form has certain limitation in field construction. As the valve has a lot of media impurities, the sealing surface is easy to scratch, and the leakage of the bypass valve is caused. Because the sealing surface is the valve body sealing surface, all maintenance sealing surfaces need to assemble and disassemble the whole valve, and the maintenance is difficult, even the whole valve is scrapped.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned problem that exists because of the impaired maintenance of sealed face, the utility model aims to provide a removable bypass valve, this removable bypass valve can adapt to various abominable construction environment, need not whole dismouting valve.
The purpose of the utility model is realized through the following technical scheme:
the utility model is arranged in the valve body and comprises a gland, a valve clack seat, a valve clack and a valve seat, wherein the valve clack seat is in threaded connection with the inside of the valve body; the valve clack is in threaded connection with the inside of the valve clack seat, one end of the valve clack is processed into a hexagonal wrench opening, the valve clack is screwed through an inner hexagonal wrench, the valve clack reciprocates axially, and the other end of the valve clack is in sealing abutting connection with the valve seat in the closed state of the bypass valve;
wherein: one side of the valve seat is connected with the inside of the valve body in a sealing way, the other side of the valve seat is abutted against the valve clack seat, a through hole A is formed in the middle of the valve seat, and the inner surface of one side, facing the valve clack seat, of the through hole A is conical;
a through hole B is formed in the middle of the valve flap seat, an internal thread in threaded connection with the valve flap is formed on the inner surface of the through hole B, an external thread in threaded connection with the valve body is formed on the outer surface of the valve flap seat, and a through hole C for communicating the through hole B with a flow passage in the valve body is formed in the valve flap seat along the radial direction;
the other end of the valve clack is conical, and the opening or closing of the bypass valve is realized through the reciprocating movement of the valve clack;
a through hole D is formed in the middle of the gland, and one end of the valve clack extends out of the other side of the valve clack seat and extends into the through hole D of the gland;
the axial central lines of the gland, the valve flap seat, the valve flap and the valve seat are collinear.
The utility model discloses an advantage does with positive effect:
the utility model discloses simple structure, performance safe and reliable are convenient for change, and sealing performance is good.
Drawings
Fig. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic structural view of the three-piece type valve for plugging the opening;
wherein: the valve comprises a gland 1, an O-shaped sealing ring A2, an O-shaped sealing ring B3, a valve clack seat 4, a valve clack 5, a valve seat 6, an O-shaped sealing ring C7, an upper valve body 8, a middle valve body 9, a lower valve body 10, a valve rod 11, a gate plate 12, an inlet 13, an outlet 14, a flow passage A15, a flow passage B16, a flow passage C17, a bypass valve 18, a through hole A19, a through hole B20, a through hole C21 and a through hole D22.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses install in the valve body, including gland 1, valve clack seat 4, valve clack 5 and disk seat 6, wherein valve clack seat 4 and the inside threaded connection of valve body, one side of this valve clack seat 4 is equipped with the disk seat 6 with the inside sealing connection of valve body, and the opposite side is equipped with the gland 1 with the inside threaded connection of valve body, gland 1 and the opposite side butt of valve clack seat 4. The valve clack 5 is in threaded connection with the valve clack seat 4, a hexagonal wrench opening is machined at one end of the valve clack, the valve clack 5 is screwed through the hexagonal wrench, axial reciprocating movement of the valve clack 5 is achieved, and the other end of the valve clack 5 is in sealing abutting connection with the valve seat 6 in the closing state of the by-pass valve.
The valve seat 6 of this embodiment is made of stainless steel, one side is connected with the inside of the valve body in a sealing manner through an O-ring C7, the other side is abutted against the valve clack seat 4, a through hole a19 is formed in the middle of the valve seat 6, and the inner surface of one side of the through hole a19 facing the valve clack seat 4 is tapered.
The middle of the valve clack seat 4 of the embodiment is provided with a through hole B20, the axial center lines of the through hole B20 and the through hole A19 are collinear, the inner surface of a through hole B20 is provided with an internal thread in threaded connection with the valve clack 5, the outer surface of the valve clack seat 4 is provided with an external thread in threaded connection with a valve body, the outer surface of the valve clack seat 4 is in sealed connection with the inside of the valve body through an O-shaped sealing ring A2, and the valve clack seat 4 is radially provided with a through hole C21 for communicating the through hole B.
The gland 1 of the embodiment is provided with a through hole D22 in the middle, one end of the valve clack 5 extends out from the other side of the valve clack seat 4 and extends into a through hole D22 of the gland 1, and the through hole D22 is collinear with the axial center lines of the through hole B20 and the through hole A19.
The valve clack 5 of the embodiment is hermetically connected with the valve clack seat 4 through an O-shaped sealing ring B3, the other end of the valve clack 5 is conical and corresponds to the conical shape of the through hole A19 on the valve seat 6, and the opening or closing of the bypass valve is realized through the reciprocating movement of the valve clack 5.
The axial center lines of the gland 1, the valve clack seat 4, the valve clack 5 and the valve seat 6 of the embodiment are collinear.
The utility model discloses a theory of operation does:
as shown in fig. 1 and fig. 2, the replaceable bypass valve 18 of the present invention is installed on the three-piece type valve for plugging and the upper valve body 8 and the lower valve body 10 of the three-piece type valve for plugging and the present invention is installed on the replaceable bypass valve 18 to realize the pressure balance between the inlet 13 and the outlet 14. Rotating the valve rod 11 to drive the gate plate 12 to open; the opening of the shutter 12 is made easier by the pressure equalisation at the inlet 13 and the outlet 14.
The upper valve body 8 is provided with a flow passage A15 and a flow passage B16 which are perpendicular to each other, the lower valve body 10 is also provided with a flow passage A15 and a flow passage B16 which are perpendicular to each other, the middle valve body 9 is provided with a flow passage C17, and the flow passage C17 communicates with the flow passage B16 of the upper valve 8 and the lower valve 11.
A hexagon socket wrench is used for screwing a hexagon wrench at one end of the valve clack 5, so that the valve clack 5 is driven to rotate, the valve clack 5 is made to reciprocate along the axial direction of the valve clack, the communication or the closing of the flow channel A15 and the flow channel B16 on the upper valve body 8 or the lower valve body 10 is realized, namely the opening or the closing of the bypass valve is realized, and the pressure of the inlet 13 and the pressure of the outlet 14 are balanced.
When the valve seat 6 is scratched by a medium, the whole valve does not need to be disassembled, the gland 1 only needs to be disassembled, and the valve clack seat 4 is immediately screwed and disassembled, so that the valve seat 6 can be disassembled and replaced very conveniently.
Claims (6)
1. A replaceable bypass valve installed in a valve body, characterized in that: the valve comprises a gland (1), a valve flap seat (4), a valve flap (5) and a valve seat (6), wherein the valve flap seat (4) is in threaded connection with the inside of a valve body, the valve seat (6) in sealed connection with the inside of the valve body is arranged on one side of the valve flap seat (4), the gland (1) in threaded connection with the inside of the valve body is arranged on the other side of the valve flap seat (4), and the gland (1) is abutted to the other side of the valve flap seat (4); the valve clack (5) is in threaded connection with the valve clack seat (4), a hexagonal wrench opening is processed at one end of the valve clack, the valve clack (5) is screwed through the hexagonal wrench in the valve clack seat, axial reciprocating movement of the valve clack (5) is achieved, and the other end of the valve clack (5) is in sealing butt joint with the valve seat (6) in the closing state of the by-pass valve.
2. The replaceable bypass valve as recited in claim 1 wherein: one side and the valve body internal seal of disk seat (6) are connected, the opposite side with valve lamella seat (4) butt, and it has through-hole A (19) to open in the middle of this disk seat (6), through-hole A (19) are the toper towards the one side internal surface of valve lamella seat (4).
3. The replaceable bypass valve as recited in claim 1 wherein: the valve is characterized in that a through hole B (20) is formed in the middle of the valve seat (4), an internal thread in threaded connection with the valve clack (5) is formed in the inner surface of the through hole B (20), an external thread in threaded connection with the valve body is formed in the outer surface of the valve seat (4), and a through hole C (21) used for communicating the through hole B (20) with a flow passage in the valve body is formed in the valve seat (4) in the radial direction.
4. The replaceable bypass valve as recited in claim 1 wherein: the other end of the valve clack (5) is conical, and the opening or closing of the bypass valve is realized through the reciprocating movement of the valve clack (5).
5. The replaceable bypass valve as recited in claim 1 wherein: a through hole D (22) is formed in the middle of the gland (1), and one end of the valve clack (5) extends out of the other side of the valve clack seat (4) and extends into the through hole D (22) of the gland (1).
6. The replaceable bypass valve as recited in claim 1 wherein: the axial center lines of the gland (1), the valve clack seat (4), the valve clack (5) and the valve seat (6) are collinear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921293007.1U CN210318588U (en) | 2019-08-09 | 2019-08-09 | Replaceable bypass valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921293007.1U CN210318588U (en) | 2019-08-09 | 2019-08-09 | Replaceable bypass valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210318588U true CN210318588U (en) | 2020-04-14 |
Family
ID=70129287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921293007.1U Active CN210318588U (en) | 2019-08-09 | 2019-08-09 | Replaceable bypass valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210318588U (en) |
-
2019
- 2019-08-09 CN CN201921293007.1U patent/CN210318588U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |