CN210623624U - Bidirectional three-piece type valve special for opening and plugging - Google Patents
Bidirectional three-piece type valve special for opening and plugging Download PDFInfo
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- CN210623624U CN210623624U CN201921284747.9U CN201921284747U CN210623624U CN 210623624 U CN210623624 U CN 210623624U CN 201921284747 U CN201921284747 U CN 201921284747U CN 210623624 U CN210623624 U CN 210623624U
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Abstract
The utility model belongs to a valve for pipeline operation, in particular to a bidirectional three-piece type perforated plugging special valve, an upper valve body, a middle valve body and a lower valve body are connected in sequence, an outlet or an inlet is arranged on the upper valve body, an inlet or an outlet is arranged on the lower valve body, a valve rod is rotatably arranged on the middle valve body, one end of the valve rod is positioned outside the middle valve body, the other end of the valve rod is positioned in the middle valve body and is in threaded connection with a flashboard, and the flashboard reciprocates along the axial direction of the valve rod through the rotation of the valve rod so as to communicate the inlet with the outlet or close the inlet and the outlet; and the upper valve body and the lower valve body are internally and detachably provided with bypass valves, and the pressure balance of the inlet and the outlet is realized through the switch of the bypass valves. The utility model discloses an upper and lower valve body is last to have set up two bypass valves respectively for the valve can two-sided use when using.
Description
Technical Field
The utility model belongs to valve for the pipe-line work, specifically speaking are three formula trompil shutoff special valves of two-way use.
Background
At present, a three-piece type special valve for opening and plugging in pipeline maintenance and emergency repair opening and plugging operation can only be used in one way when used in a construction site, and once leakage occurs in one side of valve seal, the whole valve can only be replaced. In addition, the sealing surface of the valve body is the sealing surface of the forged steel 16Mn body, so that the valve is easy to corrode and is not wear-resistant, and the valve is easy to scratch, so that the valve is easy to leak.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, an object of the present invention is to provide a two-way valve for three-piece type hole plugging.
The purpose of the utility model is realized through the following technical scheme:
the utility model discloses a go up valve body, well valve body, lower valve body, valve rod, flashboard and bypass valve, wherein go up valve body, well valve body and lower valve body and link to each other in proper order, seted up export or import on this goes up valve body, seted up import or export on the lower valve body, the valve rod rotates and installs on well valve body, and one end is located well valve body outside, and the other end is located well valve body, and threaded connection has the flashboard, and this flashboard passes through the rotation of valve rod along the axial reciprocating motion of valve rod, and then makes import and export communicate or make import and export close; the upper valve body and the lower valve body are both detachably provided with bypass valves, and the pressure balance of the inlet and the outlet is realized through the opening and closing of the bypass valves;
the bypass valve 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 upper valve body or the lower 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;
one side of the valve seat is connected with the inside of the upper valve body or the lower 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 upper valve body or the lower 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 sealing surface of the flashboard and the upper valve body and the sealing surface of the flashboard and the lower valve body are both provided with surfacing layers;
and the upper valve body and the lower valve body are both provided with a flow passage A and a flow passage C which are controlled to be switched on and off by a bypass valve, and the middle valve body is provided with a flow passage B which is used for communicating the flow passage A with the flow passage C.
The utility model discloses an advantage does with positive effect:
1. the utility model discloses an upper and lower valve body is last to have set up two bypass valves respectively for the valve can two-sided use when using.
2. The utility model discloses sealed face at flashboard and upper and lower valve body has set up the surfacing layer, increases wear-resisting, corrosion resisting property.
3. The utility model discloses a bypass valve constructs simply, performance safe and reliable, is convenient for change, and sealing performance is good.
Drawings
FIG. 1 is a sectional view of the structure of the present invention;
FIG. 2 is a partial enlarged view of the sealing surface between the gate and the valve body;
FIG. 3 is a sectional view showing the internal structure of the bypass valve of the present invention;
wherein: the valve comprises an upper valve body 1, a middle valve body 2, a lower valve body 3, a valve rod 4, a flashboard 5, an inlet 6, an outlet 7, a flow channel A8, a flow channel B9, a flow channel C10, a bypass valve 11, a gland 1101, an O-shaped sealing ring A1102, an O-shaped sealing ring B1103, a valve flap seat 1104, a valve flap 1105, a valve seat 1106, an O-shaped sealing ring C1107, a through hole A1108, a through hole B1109, a through hole C1110, a through hole D1111 and a surfacing layer 12.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present invention comprises an upper valve body 1, a middle valve body 2, a lower valve body 3, a valve rod 4, a gate plate 5 and a bypass valve 11, wherein the upper valve body 1, the middle valve body 2 and the lower valve body 3 are connected in sequence, the upper valve body 1 is provided with an outlet 7 or an inlet 6, the lower valve body 3 is provided with an inlet 6 or an outlet 7, and the inlet 6 and the outlet 7 are correspondingly provided; valve rod 4 rotates to be installed on well valve body 2, and one end is located well valve body 2 outside, and the other end is located well valve body 2 in, and threaded connection has flashboard 5, and this flashboard 5 forms the screw pair with the other end of valve rod 4, can make flashboard 5 along valve rod 4's axial reciprocating motion through valve rod 4's rotation, and then makes import 6 and export 7 intercommunication or make import 6 and export 7 close. The upper valve body 1 and the lower valve body 3 are both detachably provided with bypass valves 11, and the pressure balance of the inlet 6 and the outlet 7 is realized through the opening and closing of the bypass valves 11.
The bypass valve 11 of the present embodiment includes a gland 1101, a valve flap seat 1104, a valve flap 1105 and a valve seat 1106, wherein the valve flap seat 1104 is screwed into the upper valve body 1 or the lower valve body 3, the valve seat 1106 hermetically connected to the inside of the upper valve body 1 or the lower valve body 3 is provided on one side of the valve flap seat 1104, the gland 1101 screwed into the inside of the upper valve body 1 or the lower valve body 3 is provided on the other side, and the gland 1101 abuts against the other side of the valve flap seat 1104. The valve flap 1105 is screwed into the valve flap seat 1104, one end of the valve flap 1105 is processed into a hexagonal wrench, the valve flap 1105 is screwed by the hexagonal wrench to realize the reciprocating movement of the valve flap 1105 along the axial direction, and the other end of the valve flap 1105 is in sealing contact with the valve seat 1106 in the closing state of the bypass valve 11.
The valve seat 1106 of this embodiment is made of stainless steel, one side of the valve seat is connected with the inside of the valve body in a sealing manner through an O-ring C1107, the other side of the valve seat is abutted against the valve flap seat 1104, a through hole a1108 is formed in the middle of the valve seat 1106, and the inner surface of one side of the through hole a1108 facing the valve flap seat 1104 is tapered.
In the embodiment, a through hole B1109 is formed in the middle of a valve clack seat 1104, the through hole B1109 is collinear with the axial center line of a through hole a1108, an internal thread in threaded connection with a valve clack 1105 is formed on the inner surface of the through hole B1109, an external thread in threaded connection with a valve body is formed on the outer surface of the valve clack seat 1104, the outer surface of the valve clack seat 1104 is hermetically connected with the inside of an upper valve body 1 or a lower valve body 3 through an O-shaped seal ring a1102, and a through hole C1110 for communicating the through hole B1109 with an internal flow passage of the upper valve body 1 or.
In the embodiment, a through hole D1111 is formed in the middle of the gland 1101, one end of the valve flap 1105 extends out from the other side of the valve flap seat 1104 and extends into the through hole D1111 of the gland 1101, and the through hole D1111 is collinear with the axial center lines of the through holes B1109 and A1108.
The valve flap 1105 of this embodiment is sealingly connected to a valve flap seat 1104 via an O-ring B1103, and the other end of the valve flap 1105 is tapered to correspond to the taper of a through hole a1108 in a valve seat 1106, and the valve flap 1105 reciprocates to open or close the bypass valve 11.
The axial centerlines of the gland 1101, the valve flap seat 1104, the valve flap 1105, and the valve seat 1106 of this embodiment are collinear.
The sealing surface of the gate plate 5 and the upper valve body 1 and the sealing surface of the lower valve body 3 of the present embodiment are both provided with a build-up welding layer 12, and the build-up welding layer 12 is a build-up welding alloy material, such as D507 Mo.
The upper valve body 1 and the lower valve body 3 of the present embodiment are both provided with a flow passage A8 and a flow passage C10 controlled by the bypass valve 11, and the flow passage A8 and the flow passage C10 are perpendicular to each other. The middle valve body 2 is provided with a flow passage B9 for communicating the flow passage A8 with the flow passage C10.
The utility model discloses a theory of operation does:
the utility model discloses a two bypass valve structures, go up valve body 1 and respectively set up a removable bypass valve 11 on the lower valve body 3, make the utility model discloses a special valve can two-sidedly use when using. Even if the sealing of the outlet 7 side leaks, the special valve can still be normally used only by reversing the outlet side and the inlet side of the special valve, and the outlet side sealing is realized. Meanwhile, alloy materials are welded on the sealing surfaces of the flashboard 5 and the upper and lower valve bodies 1 and 3 in a surfacing mode, so that the wear resistance and the corrosion resistance are improved.
The utility model discloses an all installed removable bypass valve 11 on going up valve body 1 and the lower valve body 3 to realize the pressure balance of import 6 and export 7 departments. Rotating the valve rod 4 to drive the gate plate 5 to open; the opening of the shutter 5 is made easier by the pressure equalisation at the inlet 6 and the outlet 7. The hexagonal wrench at one end of the valve flap 1105 is screwed by an allen wrench to drive the valve flap 1105 to rotate, so that the valve flap 1105 reciprocates along the axial direction thereof, and the flow passage A8 on the upper valve body 1 or the lower valve body 3 is communicated with or closed by the flow passage B9, that is, the bypass valve 11 is opened or closed, so that the pressure of the inlet 6 is balanced with that of the outlet 7.
When the valve seat 1106 is scratched by a medium, the valve seat 1106 can be detached and replaced conveniently only by detaching the gland 1101 and then screwing and detaching the valve flap seat 1104 without detaching the whole valve.
Claims (9)
1. The utility model provides a three formula trompil shutoff special valves of two-way use which characterized in that: the valve comprises an upper valve body (1), a middle valve body (2), a lower valve body (3), a valve rod (4), a flashboard (5) and a bypass valve (11), wherein the upper valve body (1), the middle valve body (2) and the lower valve body (3) are sequentially connected, an outlet (7) or an inlet (6) is formed in the upper valve body (1), an inlet (6) or an outlet (7) is formed in the lower valve body (3), the valve rod (4) is rotatably installed on the middle valve body (2), one end of the valve rod is located outside the middle valve body (2), the other end of the valve rod is located in the middle valve body (2) and is in threaded connection with the flashboard (5), and the flashboard (5) reciprocates along the axial direction of the valve rod (4) through the rotation of the valve rod (4), so that the inlet (6) is communicated with the outlet (7) or the inlet (6) is closed; bypass valves (11) are detachably mounted in the upper valve body (1) and the lower valve body (3), and pressure balance between the inlet (6) and the outlet (7) is achieved through opening and closing of the bypass valves (11).
2. The bi-directional three-piece open-cell plugging dedicated valve according to claim 1, wherein: the bypass valve (11) comprises a gland (1101), a valve clack seat (1104), a valve clack (1105) and a valve seat (1106), wherein the valve clack seat (1104) is in threaded connection with the inside of the upper valve body (1) or the lower valve body (3), the valve seat (1106) which is in sealed connection with the inside of the upper valve body (1) or the lower valve body (3) is arranged on one side of the valve clack seat (1104), the gland (1101) which is in threaded connection with the inside of the upper valve body (1) or the lower valve body (3) is arranged on the other side of the valve clack seat (1104), and the gland (1101) is abutted to the; the valve clack (1105) is in threaded connection with the inside of the valve clack seat (1104), one end of the valve clack is processed into a hexagonal wrench opening, the valve clack (1105) is screwed through the hexagonal wrench, the reciprocating movement of the valve clack (1105) along the axial direction is achieved, and the other end of the valve clack (1105) is in sealing and abutting connection with the valve seat (1106) in the closing state of the bypass valve.
3. The bi-directional three-piece open-cell plugging dedicated valve according to claim 2, wherein: one side of the valve seat (1106) is connected with the interior of the upper valve body (1) or the lower valve body (3) in a sealing mode, the other side of the valve seat (1106) is abutted to the valve flap seat (1104), a through hole A (1108) is formed in the middle of the valve seat (1106), and the inner surface of one side, facing the valve flap seat (1104), of the through hole A (1108) is conical.
4. The bi-directional three-piece open-cell plugging dedicated valve according to claim 2, wherein: the valve comprises a valve clack seat (1104) and is characterized in that a through hole B (1109) is formed in the middle of the valve clack seat (1104), internal threads in threaded connection with the valve clack (1105) are formed in the inner surface of the through hole B (1109), external threads in threaded connection with an upper valve body (1) or a lower valve body (3) are formed in the outer surface of the valve clack seat (1104), and a through hole C (1110) used for communicating the through hole B (1109) with a flow passage in the valve body is formed in the valve clack seat (1104) in the.
5. The bi-directional three-piece open-cell plugging dedicated valve according to claim 2, wherein: the other end of the valve clack (1105) is in a conical shape, and the valve clack (1105) moves back and forth to open or close the bypass valve (11).
6. The bi-directional three-piece open-cell plugging dedicated valve according to claim 2, wherein: a through hole D (1111) is formed in the middle of the gland (1101), and one end of the valve flap (1105) extends out of the other side of the valve flap seat (1104) and extends into the through hole D (1111) of the gland (1101).
7. The bi-directional three-piece open-cell plugging dedicated valve according to claim 2, wherein: the axial center lines of the gland (1101), the valve flap seat (1104), the valve flap (1105) and the valve seat (1106) are collinear.
8. The bi-directional three-piece open-cell plugging dedicated valve according to claim 1, wherein: and surfacing layers (12) are arranged on the sealing surfaces of the flashboard (5) and the upper valve body (1) and the sealing surface of the lower valve body (3).
9. The bi-directional three-piece open-cell plugging dedicated valve according to claim 1, wherein: the upper valve body (1) and the lower valve body (3) are both provided with a flow channel A (8) and a flow channel C (10) which are controlled to be opened and closed through a bypass valve (11), and the middle valve body (2) is provided with a flow channel B (9) which is used for communicating the flow channel A (8) with the flow channel C (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921284747.9U CN210623624U (en) | 2019-08-09 | 2019-08-09 | Bidirectional three-piece type valve special for opening and plugging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921284747.9U CN210623624U (en) | 2019-08-09 | 2019-08-09 | Bidirectional three-piece type valve special for opening and plugging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210623624U true CN210623624U (en) | 2020-05-26 |
Family
ID=70764671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921284747.9U Active CN210623624U (en) | 2019-08-09 | 2019-08-09 | Bidirectional three-piece type valve special for opening and plugging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210623624U (en) |
-
2019
- 2019-08-09 CN CN201921284747.9U patent/CN210623624U/en active Active
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