CN219912205U - Cutting-off device capable of replacing front valve of storage tank meter under pressure on line - Google Patents
Cutting-off device capable of replacing front valve of storage tank meter under pressure on line Download PDFInfo
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- CN219912205U CN219912205U CN202320900576.8U CN202320900576U CN219912205U CN 219912205 U CN219912205 U CN 219912205U CN 202320900576 U CN202320900576 U CN 202320900576U CN 219912205 U CN219912205 U CN 219912205U
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- spring
- front valve
- storage tank
- threaded
- spring seat
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- 238000009434 installation Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 8
- 238000013461 design Methods 0.000 abstract description 4
- 238000011835 investigation Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The utility model provides a cutting device capable of replacing a front valve of a pressurized storage tank meter on line, wherein a spring seat is arranged at one end of the inside of a main body in a threaded fit manner; the center part processing of spring holder has the centre bore, and the inner terminal surface of spring holder passes through spring and sealed bulb contact cooperation, and sealed bulb's bulb face constitutes sealed cooperation with the arc recess in the main part, and the centre part processing that is located the arc recess in the main part has the screw hole, and the ejector pin adapter is installed through screw drive to the screw hole position, and the ejector pin adapter can overcome the elasticity of spring in the rotation process to with sealed bulb jack-up with UNICOM main part and ejector pin adapter. The cut-off device is based on the measurement of oil tanks and gas tanks of a hydropower plant and the on-site environment investigation, and the safety and the practicability of on-site operation are fully considered by using a mechanical design method, so that the overhaul efficiency can be greatly improved, the fault tolerance is high, and the on-line installation of the front valve of the meter can be realized.
Description
Technical Field
The utility model relates to the technical field of installation of pressure gauges of hydroelectric equipment, in particular to a cutting-off device capable of replacing a front valve of a pressurized storage tank meter on line.
Background
The hydraulic power plant has more on-site pressure containers, and mainly comprises oil and gas storage tanks of a hydraulic speed regulating system and various air storage tanks of a compressed air system. Each air storage tank is provided with an interface for installing a pressure gauge to monitor the pressure of the storage tank. The traditional mounting mode is that the storage tank is connected with a front valve of a meter, and the front valve of the meter is connected with a pressure meter. When the joint leaks or the pressure gauge is checked regularly, the front valve of the gauge needs to be opened and closed to intercept the medium. Because the valve rod of the valve belongs to dynamic seal, leakage phenomenon can occur after multiple times of opening and closing. However, because the valve before the meter is the last switch for connecting the pressure meter and the storage tank, the valve before the meter is replaced can only be used for stopping, removing pressure or evacuating the medium.
Therefore, the conventional operation method has the following drawbacks:
(1) The operation efficiency is low: the equipment is stopped, the pressure is removed or the medium is emptied, the operation time is long, and the maintenance efficiency is low.
(2) The fault tolerance rate is low: the front valve can only be boosted or filled with medium for leakage test after replacement, and once reworking, the equipment can only be stopped, the pressure is removed or the medium is emptied again, so that the fault tolerance rate is low.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the cutoff device capable of replacing the front valve of the pressurized storage tank meter on line, which is based on the measurement of the oil tank and the gas tank of a hydropower plant and the on-site environment investigation, and adopts a mechanical design method to fully consider the safety and the practicability of on-site operation.
In order to achieve the technical characteristics, the aim of the utility model is realized in the following way: the cutting-off device capable of replacing the front valve of the pressurized storage tank meter on line comprises a main body, wherein one end of the inside of the main body is provided with a spring seat in a threaded fit manner; the center part processing of spring holder has the centre bore, and the inner terminal surface of spring holder passes through spring and sealed bulb contact cooperation, and sealed bulb's bulb face constitutes sealed cooperation with the arc recess in the main part, and the centre part processing that is located the arc recess in the main part has the screw hole, and the ejector pin adapter is installed through screw drive to the screw hole position, and the ejector pin adapter can overcome the elasticity of spring in the rotation process to with sealed bulb jack-up with UNICOM main part and ejector pin adapter.
A spring seat installation cavity is formed in the main body, and an inner thread is formed in the inner wall of the spring seat installation cavity; the tail end of the spring seat mounting cavity is provided with a ball head mounting cavity, and a threaded hole is formed in the center of the tail end of the ball head mounting cavity; and the arc-shaped groove is arranged at the interface of the ball head mounting cavity and the threaded hole.
The outer surface of the spring seat is provided with external threads, and the external threads are in threaded fit with internal threads on the inner wall of the spring seat mounting cavity; the inner end face of the spring seat is provided with a first installation groove for installing the spring.
The top of sealed bulb is provided with the spring erection column, and the bottom of spring erection column is provided with the second installation mounting groove, and the spring suit is on the spring erection column.
The ejector rod adapter comprises a hexagonal column, a mounting cavity for mounting a front valve of the meter is formed in the hexagonal column, and internal threads are formed in the inner wall of the mounting cavity; the center of one end of the hexagonal column is provided with a threaded ejector rod, the threaded ejector rod and the threaded hole form threaded fit, a blind hole used for communicating the installation cavity is formed in the center of the threaded ejector rod, a radial communication hole which is radially arranged is formed in the outer wall of the end of the threaded ejector rod, and the radial communication hole is communicated with the blind hole.
And the outer wall of the main body is symmetrically provided with mounting planes.
The utility model has the beneficial effects that:
1. the cutoff device is based on the measurement of oil tanks and gas tanks of a hydropower plant and the on-site environment investigation, the safety and the practicability of on-site operation are fully considered by using a mechanical design method, and the cutoff device suitable for the on-line replacement of the front valve of the pressurized storage tank meter is designed and manufactured, is light, convenient and quick, easy to assemble and disassemble, high in safety, capable of greatly improving the maintenance efficiency and high in fault tolerance, and can realize on-line installation of the front valve of the meter.
2. The main body can be used for mounting other parts. The installation position of the spring seat can be adjusted through the spring seat installation cavity, and then the compression degree of the sealing ball head is adjusted.
3. The spring seat can be used for compressing the spring, and the reliability of fixing the spring is guaranteed through the first installation groove.
4. The spring mounting post can be used for reliably positioning and guiding the spring.
5. The ejector rod adapter can be used for installing a front valve of a meter, and on the other hand, the movement of the sealing ball head can be driven, so that the sealing is released.
6. The main body is conveniently connected with the connector of the pressurized storage tank in a butt joint mode through the installation plane.
Drawings
The utility model is further described below with reference to the drawings and examples.
Fig. 1 is a three-dimensional block diagram of a first view angle of the present utility model.
Fig. 2 is a three-dimensional block diagram of a second perspective of the present utility model.
Fig. 3 is an exploded view of the first perspective of the present utility model.
Fig. 4 is an exploded view of a second perspective of the present utility model.
Fig. 5 is a side view of the present utility model.
Fig. 6 is a view A-A of fig. 5 in accordance with the present utility model.
Fig. 7 is a state diagram of the present utility model in the truncated state.
Fig. 8 is a state diagram of the present utility model when in communication.
In the figure: spring seat 1, centre bore 2, first installation mounting groove 3, spring 4, sealed bulb 5, spring erection column 6, bulb face 7, main part 8, mounting plane 9, screw hole 10, ejector pin adapter 11, radial intercommunicating pore 12, screw ejector pin 13, hexagonal post 14, installation chamber 15, external screw thread 16, second installation mounting groove 17, spring seat installation chamber 18, blind hole 19, bulb installation chamber 20, arc recess 21.
Detailed Description
Embodiments of the present utility model will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-6, a cutoff device for an on-line replacement of a front valve of a pressurized storage tank meter comprises a main body 8, wherein a spring seat 1 is mounted at one end of the inside of the main body 8 in a threaded fit manner; the center part of the spring seat 1 is provided with a center hole 2, the inner end surface of the spring seat 1 is in contact fit with the sealing ball head 5 through a spring 4, the ball head surface 7 of the sealing ball head 5 is in sealing fit with an arc-shaped groove 21 on the main body 8, the center part of the arc-shaped groove 21 is provided with a threaded hole 10, the position of the threaded hole 10 is provided with a push rod adapter 11 through threaded transmission, the push rod adapter 11 can overcome the elasticity of the spring 4 in the rotating process, and the sealing ball head 5 is jacked up to be communicated with the main body 8 and the push rod adapter 11. The cutoff device is based on the measurement of oil tanks and gas tanks of a hydropower plant and the on-site environment investigation, the safety and the practicability of on-site operation are fully considered by using a mechanical design method, and the cutoff device suitable for the on-line replacement of the front valve of the pressurized storage tank meter is designed and manufactured, is light, convenient and quick, easy to assemble and disassemble, high in safety, capable of greatly improving the maintenance efficiency and high in fault tolerance, and can realize on-line installation of the front valve of the meter. In the specific use, can be automatic cut off the medium of the inside of area pressure storage tank through cutting device, when having guaranteed to carry out on-line installation table front valve, need not to shut down equipment, effectively improved installation effectiveness.
Further, a spring seat mounting cavity 18 is formed in the main body 8, and internal threads are formed on the inner wall of the spring seat mounting cavity 18; the tail end of the spring seat mounting cavity 18 is provided with a ball head mounting cavity 20, and a threaded hole 10 is formed in the center of the tail end of the ball head mounting cavity 20; and an arc-shaped groove 21 is provided at the interface of the ball mounting cavity 20 and the threaded hole 10. The main body 8 can be used for mounting other components. The spring seat mounting cavity 18 can be used for adjusting the mounting position of the spring seat 1, and further adjusting the compression degree of the sealing ball head 5.
Further, the outer surface of the spring seat 1 is provided with an external thread 16, and the external thread 16 is in threaded fit with an internal thread on the inner wall of the spring seat mounting cavity 18; the inner end surface of the spring seat 1 is provided with a first installation groove 3 for installing a spring 4. The spring seat 1 can be used for compressing the spring 4, and the reliability of fixing the spring 4 is ensured through the first mounting groove 3.
Further, a spring mounting column 6 is arranged at the top end of the sealing ball head 5, a second mounting groove 17 is formed in the bottom end of the spring mounting column 6, and the spring 4 is sleeved on the spring mounting column 6. The spring 4 can be reliably positioned and guided by the spring mounting posts 6 described above.
Further, the ejector rod adapter 11 comprises a hexagonal column 14, a mounting cavity 15 for mounting a front valve of a meter is processed in the hexagonal column 14, and internal threads are processed on the inner wall of the mounting cavity 15; the center of one end of the hexagonal post 14 is provided with a threaded ejector rod 13, the threaded ejector rod 13 and the threaded hole 10 form threaded fit, a blind hole 19 used for being communicated with the installation cavity 15 is formed in the center of the threaded ejector rod 13, a radial communication hole 12 which is radially arranged is formed in the outer wall of the end of the threaded ejector rod 13, and the radial communication hole 12 is communicated with the blind hole 19. The ejector pin adapter 11 can be used for installing a front valve, and on the other hand, the sealing ball 5 can be driven to move, so that the sealing can be released.
Further, the outer wall of the main body 8 is symmetrically provided with mounting planes 9. The subsequent butt connection of the body 8 with the joint of the pressurized tank is facilitated by the above-mentioned mounting plane 9.
Furthermore, the utility model is firm and reliable, is a metal surface contact type seal and is durable. The utility model solves the problem that the valve must be stopped, removed and emptied before replacing the meter. The usable time of the equipment is prolonged, and the economic benefit is improved. The disassembly and assembly time is shortened from daily to minute.
Example 2:
referring to fig. 7-8, a method of using a shut-off device for an on-line replacement of a pressurized tank meter front valve includes the steps of:
step one, assembling a cutting device:
the sealing ball head 5 is arranged in the main body 8, then the spring 4 is arranged on the sealing ball head 5, the spring seat 1 is screwed into the main body 8, the spring 4 is pressed, and the sealing ball head 5 is pressed on the arc-shaped groove 21;
step two, assembling and connecting the cutting device and the storage tank with pressure:
the end of the spring seat 1 of the cutting device is connected with a joint on the pressurized storage tank, at the moment, a high-pressure medium in the pressurized storage tank enters the main body 8 through the central hole 2, the sealing ball head 5 is tightly pressed, and the ball head surface 7 and the arc-shaped groove 21 on the main body 8 form sealing fit to cut the medium in the pressurized storage tank and flow out;
step three, connecting the front valve with the ejector rod adapter 11:
fixedly connecting a joint of a front valve of the meter with a mandril adapter 11 in advance;
step four, connection of the ejector rod adapter 11 and the main body 8:
after the front valve and the ejector rod adapter 11 are connected into a whole, the threaded ejector rod 13 of the ejector rod adapter 11 is screwed into the threaded hole 10 of the body 8, the sealing ball head 5 is gradually jacked in the screwing process of the threaded ejector rod 13, at the moment, the sealing ball head 5 is gradually separated from sealing fit with the arc-shaped groove 21, at the moment, a high-pressure medium positioned in the main body 8 enters the front valve through the radial communication hole 12 and the blind hole 19 on the threaded ejector rod 13, and the pressure of the storage tank with pressure can be monitored through the front valve;
step five, disassembling the front valve:
when the front valve of the meter needs to be dismantled, only the ejector rod adapter 11 and the front valve of the meter need to be integrally dismantled, the ejector rod adapter 11 is rotated, the threaded ejector rod 13 of the ejector rod adapter 11 is screwed out of the main body 8, at the moment, the sealing ball 5 is pressed tightly by the sealing ball 5 under the action of the spring 4, and then the ball surface 7 of the sealing ball 5 and the arc-shaped groove 21 on the main body 8 form sealing fit, so that the medium in the pressurized storage tank is cut off.
Claims (6)
1. The cutting-off device capable of replacing the front valve of the pressurized storage tank meter on line is characterized by comprising a main body (8), wherein one end of the inside of the main body (8) is provided with a spring seat (1) in a threaded fit manner; the center part processing of spring holder (1) has centre bore (2), the interior terminal surface of spring holder (1) passes through spring (4) and seals bulb (5) contact cooperation, sealed bulb (5) bulb face (7) constitutes sealed cooperation with arc recess (21) on main part (8), and the centre part processing that is located arc recess (21) on main part (8) has screw hole (10), ejector pin adapter (11) are installed through the screw drive in screw hole (10) place, ejector pin adapter (11) can overcome the elasticity of spring (4) at the rotation in-process, and jack up sealed bulb (5) with UNICOM main part (8) and ejector pin adapter (11).
2. The cutoff device capable of replacing a front valve of a pressurized storage tank meter on line according to claim 1, wherein a spring seat installation cavity (18) is formed in the main body (8), and an inner thread is formed on the inner wall of the spring seat installation cavity (18); the tail end of the spring seat mounting cavity (18) is provided with a ball mounting cavity (20), and a threaded hole (10) is formed in the center of the tail end of the ball mounting cavity (20); and the arc-shaped groove (21) is arranged at the interface between the ball head mounting cavity (20) and the threaded hole (10).
3. The cutting-off device for the on-line replaceable pressurized storage tank meter front valve according to claim 2, wherein the outer surface of the spring seat (1) is provided with external threads (16), and the external threads (16) are in threaded fit with internal threads on the inner wall of a spring seat mounting cavity (18); the inner end surface of the spring seat (1) is provided with a first installation groove (3) for installing the spring (4).
4. The cutting device capable of replacing the front valve of the pressurized storage tank meter on line according to claim 2, wherein a spring mounting column (6) is arranged at the top end of the sealing ball head (5), a second mounting groove (17) is arranged at the bottom end of the spring mounting column (6), and the spring (4) is sleeved on the spring mounting column (6).
5. The cutting-off device capable of replacing the front valve of the pressurized storage tank meter on line according to claim 2, wherein the ejector rod adapter (11) comprises a hexagonal column (14), an installation cavity (15) for installing the front valve of the meter is processed in the hexagonal column (14), and internal threads are processed on the inner wall of the installation cavity (15); a threaded ejector rod (13) is arranged at the center of one end of the hexagonal column (14), the threaded ejector rod (13) and the threaded hole (10) form threaded fit, a blind hole (19) used for communicating the installation cavity (15) is formed in the center of the threaded ejector rod (13), a radial communication hole (12) which is radially arranged is formed in the outer wall of the end of the threaded ejector rod (13), and the radial communication hole (12) is communicated with the blind hole (19).
6. The cutoff device for an on-line replaceable pressurized tank meter front valve according to claim 2, characterized in that the outer wall of the main body (8) is symmetrically machined with mounting planes (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320900576.8U CN219912205U (en) | 2023-04-20 | 2023-04-20 | Cutting-off device capable of replacing front valve of storage tank meter under pressure on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320900576.8U CN219912205U (en) | 2023-04-20 | 2023-04-20 | Cutting-off device capable of replacing front valve of storage tank meter under pressure on line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219912205U true CN219912205U (en) | 2023-10-27 |
Family
ID=88430202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320900576.8U Active CN219912205U (en) | 2023-04-20 | 2023-04-20 | Cutting-off device capable of replacing front valve of storage tank meter under pressure on line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219912205U (en) |
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2023
- 2023-04-20 CN CN202320900576.8U patent/CN219912205U/en active Active
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