CN218094772U - Coal mine paste filling overpressure unloading valve convenient to maintain - Google Patents
Coal mine paste filling overpressure unloading valve convenient to maintain Download PDFInfo
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- CN218094772U CN218094772U CN202222349564.9U CN202222349564U CN218094772U CN 218094772 U CN218094772 U CN 218094772U CN 202222349564 U CN202222349564 U CN 202222349564U CN 218094772 U CN218094772 U CN 218094772U
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- ball head
- valve
- unloading valve
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Abstract
A coal mine paste filling overpressure unloading valve convenient to maintain belongs to an unloading valve of a filling pipeline. The filling overpressure unloading valve comprises: the device comprises a stop valve, a work monitoring pressure gauge, a maintenance hole cover, a grating, a valve body, a wear-resisting ring, a plug, a ball head column, a connecting sleeve, a jacking hydraulic cylinder, a pressure regulating monitoring pressure gauge, a hydraulic overflow loop, a quick clamp, a ball head cover plate and a cover plate bolt; the thread wires are arranged in the sleeves at the two ends of the connecting sleeve, the thread wires at the two ends are opposite in direction, one end of the connecting sleeve is a forward thread wire, the other end of the connecting sleeve is a reverse thread wire, and a hexagonal edge is arranged at the middle position outside the connecting sleeve; or the surface of the hexagonal prism is provided with a through hole. The advantages are that: the hexagonal edges of the connecting sleeve are screwed by a wrench, and the ball head columns connected to two ends of the connecting sleeve and the hydraulic cylinder shaft are pushed to advance or retract simultaneously, so that the working efficiency in the maintenance process is greatly improved, and the labor intensity of workers is reduced. Strong operation controllability and convenient disassembly, assembly, maintenance and repair.
Description
Technical Field
The utility model relates to an unloading valve of filling pipeline, especially a colliery lotion fills superpressure unloading valve convenient to maintain.
Background
At present, in the filling and conveying process of paste, local pipe blockage of a pipeline system is easily caused to cause the increase of working pressure due to improper field batching or operation process, and unloading and pressure reduction need to be considered in the pipeline system in order to ensure the safety of the pipeline and facilitate fault cleaning. Normally, a gate valve is installed in a pipeline system, and when a pipe is blocked, the gate valve is opened to unload.
The gate valve is adopted for unloading, so that the defect that internal leakage is easily caused due to lower sealing pressure is caused because of structural limitation; the gate valve is opened to completely lift the valve plate above the valve seat through hole, and the valve plate is completely fallen to block the valve seat through hole when the gate valve is closed, so that the valve plate is large in opening and closing stroke, correspondingly increased in height, reduced in effective space of a work site and correspondingly lower in working efficiency.
Chinese patent grant publication no: CN216382713U discloses a coal mine paste filling overpressure unloading valve, which solves the problem that disassembly between a ball head column and a plug of the unloading valve is difficult. However, in the technical scheme of the overpressure unloading valve, the connecting thread wires at two ends of the connecting sleeve for connecting the ball-head column and the jacking hydraulic cylinder shaft are thread wires in the same direction, namely, are positive thread wires, and can be installed only according to a correct sequence; during installation of the overpressure unloading valve, a ball head of a ball head column is required to be connected with a plug through a ball head cover plate, the ball head column is connected with a thread at one end of a connecting sleeve, and then a thread at the other end of the connecting sleeve is connected with a jacking hydraulic cylinder shaft; the disassembly process is opposite to the installation process, the sequence is also complex and troublesome, a special disassembly tool is required in a narrow space in the valve body, the assembly and disassembly processes are very difficult, the labor intensity of workers is high, and the working efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a colliery lotion fills superpressure unloading valve convenient to maintain, must dismantle according to specific order when installing, dismantling between the bulb post of solving current unloading valve and the tight hydraulic cylinder axle in top, the problem that the dismantlement process is complicated, troublesome difficulty, work efficiency is low.
The utility model aims at realizing through the following technical modes: the overpressure unloading valve comprises: the device comprises a stop valve, a work monitoring pressure gauge, a maintenance hole cover, a grating, a valve body, a wear-resisting ring, a plug, a ball head column, a connecting sleeve, a jacking hydraulic cylinder, a pressure regulating monitoring pressure gauge, a hydraulic overflow loop, a quick clamp, a ball head cover plate and a cover plate bolt;
the thread wires are arranged in the sleeves at the two ends of the connecting sleeve, the directions of the thread wires at the two ends are opposite, one end of the connecting sleeve is a forward thread wire, the other end of the connecting sleeve is a reverse thread wire, and a hexagonal edge is arranged at the middle position outside the connecting sleeve; or the surface of the hexagonal prism is provided with a through hole.
Has the advantages that: due to the adoption of the scheme, the adopted connecting sleeve is a connecting sleeve with the two ends of the positive and negative thread wires, in the process of installation or disassembly, only the parts at the two ends of the connecting sleeve are connected with the connecting sleeve, and then the parts at the two ends can be simultaneously unscrewed or screwed through the forward or reverse movement of the connecting sleeve, and the functions of connecting a ball head column and finely adjusting the tightness between the hydraulic cylinder shaft parts can be achieved; the problem of inconvenient installation, the dismantlement of original adapter sleeve has extremely conveniently been solved. In addition, considering that the threaded connection part of the overpressure unloading valve can be loosened or over-tightened in the long-term use process, the overpressure unloading valve is suggested to be fixed in a high-strength screw glue hitting mode after the installation is finished, the overpressure unloading valve can be slightly heated during the disassembly, the glue is softened, and then the connecting sleeve is rotated by a wrench, so that the disassembly can be easily finished.
The advantages are that: the hexagonal edge of the connecting sleeve is screwed by a wrench, and the ball head column connected to the two ends of the connecting sleeve and the jacking hydraulic cylinder shaft simultaneously screw in or screw out, so that the working efficiency in the maintenance process is greatly improved, and the labor intensity of workers is reduced. Strong operation controllability and convenient disassembly, assembly, maintenance and repair.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view structural diagram of fig. 1.
Fig. 3 is a schematic view of the locally enlarged structure of the ball stud and the connecting sleeve of the present invention.
Fig. 4 is a schematic structural view of the connection between the ball stud and the jacking hydraulic cylinder shaft and the connecting sleeve of the present invention.
In the figure, 1, a stop valve; 2. a work monitoring pressure gauge; 3. repairing the hole cover; 4. a grid; 5. a valve body; 6. a wear ring; 7. plugging; 8. a ball head cover plate; 9. a ball head column; 10. 11, a connecting sleeve tightly pushes the hydraulic cylinder; 12. a pressure regulating monitoring pressure gauge; 13. a hydraulic overflow circuit; 14. quickly clamping a hoop; 15. and a cover plate bolt.
Detailed Description
Example 1: the overpressure unloading valve comprises: the device comprises a stop valve 1, a work monitoring pressure gauge 2, a maintenance hole cover 3, a grating 4, a valve body 5, a wear-resisting ring 6, a plug 7, a bulb column 9, a connecting sleeve 10, a jacking hydraulic cylinder 11, a pressure regulating monitoring pressure gauge 12, a hydraulic overflow loop 13 and a quick clamp 14;
an output pipe is arranged at one end of the valve body 5, a quick clamp 14 is connected at the end part of the output pipe, a stop valve 1 and a work monitoring pressure gauge 2 are connected on the wall of the output pipe, a maintenance hole is arranged at the middle part of the valve body 5, a maintenance hole cover 3 is connected on the maintenance hole, an input pipe is connected on the valve body 5, a grid 4 is connected in the input pipe, and the quick clamp 14 is connected at the end part of the input pipe; a ball head plugging assembly is arranged in the valve body 5, one end of the ball head plugging assembly is connected to the outlet of the output pipe through a wear-resistant ring 6, the other end of the ball head plugging assembly is connected with a jacking hydraulic cylinder 11 through a flange, a hydraulic loop 13 is connected to the end part of the jacking hydraulic cylinder 11, and a pressure regulating monitoring pressure gauge 12 is arranged on the hydraulic overflow loop 13.
A ball cover plate 8 and a cover plate bolt 15; one end of the plug 7 is provided with a hemispherical recess, the front part of the bulb column 9 is positioned in the hemispherical recess of the plug 7, and the bulb is connected with the hemispherical recess in a ball hinge mode; the rear part of the ball head is matched with a ball head cover plate 8, the ball head cover plate 8 is fixed on the end face of the plug 7 through a cover plate bolt 15, the ball head cover plate 8 and the ball head are in interference fit, the plug 7 is guaranteed not to shake randomly, meanwhile, micro adjustment can be carried out, and the plug 7 of the unloading valve is guaranteed to seal the valve body in the unloading state.
The thread wires are arranged in the sleeves at the two ends of the connecting sleeve, the directions of the thread wires are opposite, one end of the thread wire is a forward thread wire, the other end of the thread wire is a reverse thread wire, and a hexagonal edge is arranged at the middle position outside the connecting sleeve; or the surface of the hexagonal prism is provided with a through hole, and a screwdriver is inserted into the through hole to realize the installation or the disassembly.
The hexagonal edge of the connecting sleeve is screwed by a wrench, and the ball head columns connected to the two ends of the connecting sleeve and the jacking hydraulic cylinder shaft simultaneously screw in or screw out, so that the working efficiency in the maintenance process is greatly improved.
The coal mine paste filling overpressure unloading valve mainly plays an overpressure unloading function in a pipeline system. The inlet and outlet ports of the valve are connected to the main line by a quick clamp 14. When the ball head plugging assembly works, a hydraulic cylinder 11 is tightly pushed to apply pressure, and a plug 7 automatically aligns and seals a wear-resistant ring 6 of a feeding hole; when the pressure in the working pipeline gradually rises, the stop valve 1 is opened slowly to deflate, and the stop valve 1 is closed after the working monitoring pressure gauge 2 is adjusted to be zero. Because the working pressure of the jacking hydraulic cylinder 11 is preset, when the pressure in the paste filling pipeline exceeds the set pressure, the overflow control loop 13 retracts the piston of the jacking hydraulic cylinder 11 to open the plug 7, and the paste filling main pipeline performs overpressure unloading.
The assembly of this valve ball head assembly: the method comprises the steps that firstly, a plug 7, a ball head cover plate 8 and a ball head column 9 are assembled into a whole, wherein the ball head cover plate 8 and the plug 7 press and connect the ball head column 9 together through a cover plate bolt 15, and then the ball head column and a piston head of a jacking hydraulic cylinder 11 are connected through a connecting sleeve 10 with a bidirectional threaded wire; the valve outlet is provided with a grid 4 for filling the recovery of the pipeline cleaning ball. The service hole cover 3 of the valve is used for maintenance and disassembly, and the working state is closed. The operation of the jacking hydraulic cylinder 11 of the valve is controlled by the operation of a hydraulic overflow circuit 13 device.
Claims (1)
1. A coal mine paste filling overpressure unloading valve convenient to maintain comprises: the device comprises a stop valve, a work monitoring pressure gauge, a maintenance hole cover, a grating, a valve body, a wear-resisting ring, a plug, a ball head column, a connecting sleeve, a jacking hydraulic cylinder, a pressure regulating monitoring pressure gauge, a hydraulic overflow loop, a quick clamp, a ball head cover plate and a cover plate bolt;
the method is characterized in that: the thread wires are arranged in the sleeves at the two ends of the connecting sleeve, the thread wires at the two ends are opposite in direction, one end of the connecting sleeve is a forward thread wire, the other end of the connecting sleeve is a reverse thread wire, and a hexagonal edge is arranged at the middle position outside the connecting sleeve; or the surface of the hexagonal prism is provided with a through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222349564.9U CN218094772U (en) | 2022-09-05 | 2022-09-05 | Coal mine paste filling overpressure unloading valve convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222349564.9U CN218094772U (en) | 2022-09-05 | 2022-09-05 | Coal mine paste filling overpressure unloading valve convenient to maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218094772U true CN218094772U (en) | 2022-12-20 |
Family
ID=84450764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222349564.9U Active CN218094772U (en) | 2022-09-05 | 2022-09-05 | Coal mine paste filling overpressure unloading valve convenient to maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218094772U (en) |
-
2022
- 2022-09-05 CN CN202222349564.9U patent/CN218094772U/en active Active
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