CN214036930U - Injection and drainage valve of steel pipe hydrostatic test equipment - Google Patents
Injection and drainage valve of steel pipe hydrostatic test equipment Download PDFInfo
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- CN214036930U CN214036930U CN202023270013.0U CN202023270013U CN214036930U CN 214036930 U CN214036930 U CN 214036930U CN 202023270013 U CN202023270013 U CN 202023270013U CN 214036930 U CN214036930 U CN 214036930U
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Abstract
The utility model provides a steel pipe hydrostatic test equipment's notes escape valve relates to water press water injection exhaust apparatus technical field. The valve body is of a T-shaped structure, the upper end of the valve body is a cylinder end for installing a cylinder, the lower end of the valve body is a valve seat end connected with a steel pipe, the outer branch part of the valve body is a water inlet and air outlet end, a valve rod is installed inside the valve body, the bottom of the valve rod is rigidly connected with a flat disc-shaped valve plug to form the T-shaped structure, the valve rod penetrates through a valve seat, a guide sleeve seat, a copper sleeve and a spring, a blocking disc is fixedly installed on the tail end of the valve through a countersunk screw, the disc-shaped diameter of the valve plug is larger than the middle aperture of the valve seat, the spring is in a. The valve plug of the utility model adopts a flat disc-shaped structure and is provided with a third sealing part, thereby enhancing the sealing effect between the valve plug and the valve seat and solving the leakage problem of the grinding conical injection and drainage valve in the process of low-pressure test in the steel pipe; the cylinder drives, the action is reliable, the structure is simple, and the manufacturing cost is low.
Description
Technical Field
The utility model relates to a hydraulic press water injection exhaust apparatus technical field, in particular to steel pipe hydrostatic test equipment's notes blow-off valve.
Background
In the steel pipe hydrostatic test equipment, water is injected into the steel pipe through the water injection valve, the exhaust valve exhausts air in the steel pipe, the water injection valve and the exhaust valve are closed successively after the water injection is finished, then the steel pipe is pressurized, and the water injection valve and the exhaust valve play a sealing role at the moment. In the steel pipe pressure maintaining process, the sealing performance of the injection and exhaust valve is of great importance. At present, when the grinding conical injection and drainage valve on the market has a large amount of impurities in medium and low pressure (0-40MPa) and water, the sealing performance is poor, and the pressure drop phenomenon is easy to occur in the pressure maintaining process.
SUMMERY OF THE UTILITY MODEL
The utility model provides a steel pipe hydrostatic test equipment's notes escape valve overcomes the defect that above-mentioned prior art exists.
The specific technical scheme is that the injection and exhaust valve of the steel pipe hydrostatic test equipment comprises a main structure part which is a valve body, wherein the valve body is of a T-shaped structure, the upper end of the valve body is a cylinder end for installing a cylinder, the lower end of the valve body is a valve seat end connected with a steel pipe, the outer side branch part is a water inlet and air outlet end, a valve rod is installed in the valve body, the cylinder end, the valve seat end and the water inlet and air outlet end are hollow and communicated,
the telescopic end of the cylinder extends into the valve body, a first sealing part is arranged between the telescopic end and the cylinder end,
the bottom of the valve rod is rigidly connected with a flat disc-shaped valve plug to form a T-shaped structure, one end of the valve rod, far away from the valve plug, is a valve tail end provided with a threaded hole, the valve rod penetrates through the valve seat, the guide sleeve seat, the copper sleeve and the spring, the baffle disc is fixedly arranged at the valve tail end through a countersunk screw, a groove is formed in the surface, close to the valve seat, of the valve plug, a third sealing part is arranged in the groove, and a second sealing part is arranged at the contact part of the valve seat and the valve seat end,
the valve seat protrudes out of the end of the valve seat, the valve plug is located below the valve seat, the disc-shaped diameter of the valve plug is larger than the aperture of the middle hole of the valve seat, the valve rod is located inside the valve body, the spring is in a tensioning state, and the bottom of the telescopic end is in surface contact with the upper portion of the blocking disc.
Further, the cylinder body of the cylinder is fixedly arranged on the outer side above the cylinder end through a hexagon screw.
Further, a sealing ring is arranged at the third sealing part and fixedly installed on a groove of the valve plug through a countersunk head small screw.
Further, the first sealing portion and the second sealing portion are sealed by an O-shaped rubber sealing ring.
Further, a space ring is arranged between the copper sleeve and the valve rod.
Further, the valve seat end protrudes outward to form an outward convex body.
When the valve is used, a valve seat hole for installing the valve body is formed in the appropriate position of the steel pipe, the valve seat end is installed at the valve seat hole, the valve plug is sunk into the valve seat hole, and a fourth sealing part is arranged at the contact position of the valve seat and the valve seat hole to strengthen the installation sealing property between the valve body and the steel pipe.
Compared with the prior art, the utility model discloses there is following technical advantage: the valve plug is of a flat disc-shaped structure, a third sealing part is arranged on the contact surface of the valve plug and the valve seat, the sealing effect between the valve plug and the valve seat is enhanced, and the problem of leakage of the conventional grinding conical injection and discharge valve in the process of a low-pressure (0-40MPa) test of a steel pipe is solved; the air cylinder is adopted for power drive, the action is reliable, the structure is simple, and the manufacturing cost is low.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the installation state of the present invention.
Wherein:
1. the valve comprises a valve body, a steel pipe, 11, a valve seat end, 12, a water inlet and air outlet end, 13, a cylinder end, 14, a valve rod, 111, an outer convex body, 112, an inner hollow part, 131, a cylinder body, 132, a telescopic end, 133, a hexagon screw, 134, a first sealing part, 141, a valve plug, 142, a valve tail end, 143, a valve seat, 144, a guide sleeve seat, 145, a copper sleeve, 146, a spacer ring, 147, a spring, 148, a baffle disc, 149, a countersunk head screw, 150, a second sealing part, 151, a third sealing part, 152, a fourth sealing part, 201 and a valve seat hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
In the description of the present invention, it should be noted that the terms "inner", "outer", "left" and "right" are used for indicating the position or positional relationship based on the positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus should not be construed as limiting the present invention.
Example 1: referring to fig. 1-2, the main structure of the injection and exhaust valve of the steel pipe hydrostatic test equipment is a valve body 1, the valve body 1 is a T-shaped structure, the upper end of the valve body 1 is a cylinder end 13 for installing a cylinder, the lower end of the valve body is a valve seat end 11 connected with the steel pipe 2, the outer branch part is a water inlet and air outlet end 12, a valve rod 14 is installed inside the valve body, the cylinder end 13, the valve seat end 11 and the water inlet and air outlet end 12 are hollow and communicated,
the telescopic end 132 of the cylinder extends into the valve body 1, a first sealing part 134 is arranged between the telescopic end 132 and the cylinder end 13,
a valve plug 141 in the shape of a flat disc is rigidly connected to the bottom of the valve stem 14 to form a "T" structure, a valve tail end 142 with a threaded hole is arranged at one end of the valve stem 14 away from the valve plug 141, the valve stem 14 passes through the valve seat 143, the guide sleeve seat 144, the copper sleeve 145 and the spring 147, the blocking disc 148 is fixedly mounted on the valve tail end 142 through a countersunk screw 149, a groove is arranged on the surface of the valve plug 141 close to the valve seat 143, a third sealing part 151 is arranged in the groove, a second sealing part 150 is arranged at the contact part of the valve seat 143 and the valve seat end 11,
the valve seat 143 protrudes out of the valve seat end 11, the valve plug 141 is located below the valve seat 143, the disc-shaped diameter of the valve plug 141 is larger than the aperture of the middle hole of the valve seat 143, the valve rod 14 is located inside the valve body 1, the spring 147 is in a tensioned state, and the bottom of the telescopic end 132 is in contact with the upper surface of the blocking disc 148.
The cylinder body 131 of the air cylinder is fixedly arranged on the upper outer side of the cylinder end 13 through a hexagon screw 133.
A sealing ring is arranged at the third sealing part 151 and fixedly mounted on a groove of the valve plug 141 through a countersunk small screw. The sealing effect between the valve plug 141 and the valve seat 143 is enhanced.
The first sealing portion 134 and the second sealing portion 150 are sealed by an O-ring rubber seal. The sealing between the telescopic end 132 and the wall of the cylinder end 13 and the sealing between the valve seat 143 and the valve seat end 11 are strengthened, and a good sealing effect is ensured.
A spacer 146 is installed between the copper bush 145 and the valve rod 14, and abrasion between the copper bush 145 and the valve rod 14 is reduced.
The valve seat end 11 protrudes outwards to form an outer convex body 111, which is convenient to install on the steel pipe 2.
When the valve is used, a valve seat hole 201 for installing the valve body 1 is formed in a proper position of the steel pipe 2, the valve seat end 11 is installed at the valve seat hole 201, the valve plug 141 sinks into the valve seat hole 201, and a fourth sealing part 152 is arranged at the contact position of the valve seat 143 and the valve seat hole 201 to enhance the installation sealing performance between the valve body 1 and the steel pipe 2. When the valve is used, the air cylinder is started to move downwards to apply axial force on the valve rod 14 through the telescopic end 132, so that the valve rod 14 moves downwards, the spring 147 is forcibly compressed, the valve plug 141 is separated from the valve seat 143, water enters from the water inlet and outlet end 12 and enters the steel pipe 2 through the hollow part 112 at the valve seat end 11, and gas inside the steel pipe 2 is discharged through the water inlet and outlet end 12 in the reverse direction of water flow; when the water inlet and air exhaust actions are finished, the air cylinder moves upwards to return, the spring 147 returns along with the air cylinder to drive the valve plug 141 to approach again, the valve plug 141 is tightly attached to the valve seat 143 under the action of the spring 147, the third sealing portion 151 strengthens the sealing effect between the valve plug 141 and the valve seat 143, and pressurization and pressure maintaining of the steel pipe 2 are achieved. The flat disc-shaped valve plug 141 of the utility model is provided with the third sealing part 151 on the contact surface with the valve seat 143, so as to enhance the sealing effect between the valve plug 141 and the valve seat 143 and solve the leakage problem of the prior grinding conical injection and drainage valve in the low-pressure (0-40MPa) test process of the steel pipe; the air cylinder is adopted for power drive, the action is reliable, the structure is simple, and the manufacturing cost is low.
The foregoing is only a preferred embodiment of the present invention and is not intended to limit the present invention in any way, and those skilled in the art may make modifications and changes to the equivalent embodiments using the teachings of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (6)
1. The main structure part of the injection and drainage valve of the steel pipe hydrostatic test equipment is a valve body (1) and is characterized in that,
the valve body (1) is of a T-shaped structure, the upper end of the valve body (1) is provided with a cylinder end (13) for mounting a cylinder, the lower end of the valve body is provided with a valve seat end (11) connected with the steel pipe (2), the outer side branch part is provided with a water inlet and air outlet end (12), a valve rod (14) is arranged in the valve body, the cylinder end (13), the valve seat end (11) and the water inlet and air outlet end (12) are hollow and communicated,
the telescopic end (132) of the cylinder extends into the valve body (1), a first sealing part (134) is arranged between the telescopic end (132) and the cylinder end (13),
the bottom of the valve rod (14) is rigidly connected with a flat disc-shaped valve plug (141) to form a T-shaped structure, one end of the valve rod (14) far away from the valve plug (141) is a valve tail end (142) provided with a threaded hole, the valve rod (14) penetrates through the valve seat (143), the guide sleeve seat (144), the copper sleeve (145) and the spring (147), the baffle disc (148) is fixedly installed on the valve tail end (142) through a sunk screw (149), a groove is formed in the surface of the valve plug (141) close to the valve seat (143), a third sealing part (151) is arranged in the groove, and a second sealing part (150) is arranged at the contact part of the valve seat (143) and the valve seat end (11),
the valve seat (143) protrudes out of the valve seat end (11), the valve plug (141) is located below the valve seat (143), the disc-shaped diameter of the valve plug (141) is larger than the aperture of a middle hole of the valve seat (143), the valve rod (14) is located inside the valve body (1), the spring (147) is in a tensioning state, and the bottom of the telescopic end (132) is in surface contact with the upper portion of the blocking disc (148).
2. The injection and discharge valve of the steel pipe hydrostatic test equipment according to claim 1, wherein the cylinder body (131) of the cylinder is fixedly installed at the upper outer side of the cylinder end (13) by a hexagon screw (133).
3. The injection and exhaust valve of the steel pipe hydrostatic test equipment according to claim 1, wherein a sealing ring is arranged at the third sealing part (151), and the sealing ring is fixedly installed on a groove of the valve plug (141) through a countersunk head small screw.
4. The injection and exhaust valve of the steel pipe hydrostatic test apparatus of claim 1, wherein the first sealing portion (134) and the second sealing portion (150) are sealed with an O-ring rubber seal.
5. The injection and exhaust valve of the steel pipe hydrostatic test apparatus of claim 1, wherein a spacer (146) is installed between the copper bush (145) and the valve stem (14).
6. The injection and discharge valve of the steel pipe hydrostatic test apparatus of claim 1, wherein the valve seat end (11) is outwardly protruded to form an outward protrusion (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023270013.0U CN214036930U (en) | 2020-12-30 | 2020-12-30 | Injection and drainage valve of steel pipe hydrostatic test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023270013.0U CN214036930U (en) | 2020-12-30 | 2020-12-30 | Injection and drainage valve of steel pipe hydrostatic test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214036930U true CN214036930U (en) | 2021-08-24 |
Family
ID=77344523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023270013.0U Active CN214036930U (en) | 2020-12-30 | 2020-12-30 | Injection and drainage valve of steel pipe hydrostatic test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214036930U (en) |
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2020
- 2020-12-30 CN CN202023270013.0U patent/CN214036930U/en active Active
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