CN216382713U - Coal mine paste filling overpressure unloading valve - Google Patents
Coal mine paste filling overpressure unloading valve Download PDFInfo
- Publication number
- CN216382713U CN216382713U CN202123057307.XU CN202123057307U CN216382713U CN 216382713 U CN216382713 U CN 216382713U CN 202123057307 U CN202123057307 U CN 202123057307U CN 216382713 U CN216382713 U CN 216382713U
- Authority
- CN
- China
- Prior art keywords
- ball head
- cover plate
- plug
- valve
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Valves (AREA)
Abstract
A coal mine paste filling overpressure unloading valve belongs to an unloading valve of a filling pipeline. 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 and a quick clamp; the ball head cover plate and the cover plate bolt are also included; one end of the plug is provided with a hemispherical recess, the front part of the ball head column is positioned in the plugged hemispherical recess, and the ball head is connected with the hemispherical recess in a ball hinge mode; the rear part of the ball head is matched with the ball head cover plate, the ball head cover plate is fixed on the end face of the plug through the cover plate bolt, the ball head cover plate and the ball head are in interference fit, the plug is guaranteed not to shake randomly, meanwhile, micro adjustment can be carried out, and the sealing of the plug on the valve body of the unloading valve in an unloading state is guaranteed. The advantages are that: strong operation controllability and convenient disassembly, assembly, maintenance and repair.
Description
Technical Field
The utility model relates to an unloading valve for a filling pipeline, in particular to an overpressure unloading valve for filling paste in a coal mine.
Background
At present, in the filling and conveying process of paste, local pipe blockage of a pipeline system is easily caused due to improper field batching or operation process, so that the working pressure is increased, 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 lift the valve plate to the position above the valve seat through hole completely, and the valve plate is required to fall down completely to block the valve seat through hole when the gate valve is closed, so that the valve plate has large opening and closing stroke, correspondingly increased height, reduced effective space of a work site and correspondingly lower working efficiency.
Chinese patent grant publication no: CN202338669U discloses a coal mine paste filling overpressure unloading valve, which solves the problems that slurry is easy to accumulate at a gate knife edge of a gate valve, and high-pressure sealing is easy to leak inwards. However, the problem that the unloading valve is difficult to maintain in the using process exists in the patent, the ball head column in the unloading valve is connected with the plug through the threaded sleeve, and the plug generates external tension on the connecting shaft part contacted with the ball head column under the thrust action of the ball head column, so that the threaded connection between the connecting shaft and the threaded sleeve becomes very tight, and the threaded sleeve is difficult to disassemble; meanwhile, the ball head column and the plug are arranged in the valve body 5, and the ball head column and the plug are very difficult to disassemble in a mounting process due to the narrow space in the valve body 5 and no special disassembling tool, so that the maintainability of the unloading valve is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a coal mine paste filling overpressure unloading valve, which solves the problem that a ball head column and a plug of the unloading valve are difficult to disassemble.
The purpose of the utility model is realized by 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 and a quick clamp;
further comprising: a ball cover plate and a cover plate bolt; one end of the plug is provided with a hemispherical recess, the front part of the ball head column is positioned in the plugged hemispherical recess, and the ball head 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, the ball head cover plate is fixed on the end face of the plug through a cover plate bolt, and the ball head cover plate and the ball head are in interference fit.
Has the advantages that: by adopting the scheme, the feed inlet and the discharge outlet of the valve are connected with the main pipeline by the quick clamps, the ball head plugging assembly is pressed by the jacking hydraulic cylinder, and the plugging automatically aligns and plugs the wear-resisting ring of the feed inlet; because the working pressure of the jacking hydraulic cylinder is preset, when the pressure in the paste filling pipeline exceeds the set pressure, the overflow control loop retracts the piston of the hydraulic cylinder to open the plug, and the paste filling main pipeline performs overpressure unloading. A stop valve is connected in front of the working pressure gauge and is used for exhausting gas in the initial working to correct the working pressure gauge to be zero. The ball head plugging assembly automatically centers the wear-resisting ring of the sealing discharge port, can be quickly connected when the valve structure is maintained, and firstly unloads the jacking hydraulic cylinder and the connecting sleeve when the unloading valve needs to be disassembled, unscrews the cover plate bolt, takes down the ball head cover plate and smoothly takes down the ball head column.
The disassembly is convenient. The discharge port is provided with the grating, so that convenience is brought to the recovery of the cleaning balls of the filling pipeline. Thereby solving the problems of pipeline pressure display and overpressure unloading, reducing the labor intensity and achieving the aim of the utility model.
The advantages are that: strong operation controllability and convenient disassembly, assembly, maintenance and repair.
Drawings
FIG. 1 is a block diagram of the present invention.
Fig. 2 is a top view structural diagram of fig. 1.
Fig. 3 is a schematic view of a partially enlarged structure of the ball stud and the plug.
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.
Further comprising: a ball cover plate 8 and a cover bolt 15; one end of the plug 7 is provided with a hemispherical recess, the front part of the ball head column 9 is positioned in the hemispherical recess of the plug 7, and the ball head 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.
When the unloading valve needs to be disassembled, the jacking hydraulic cylinder 11 and the connecting sleeve 10 are disassembled, the cover plate bolt 15 is unscrewed, the ball head cover plate 8 is disassembled, and the ball head column 9 is smoothly disassembled.
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 plugging 7 automatically aligns and seals a wear-resisting 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 circuit 13 retracts the piston of the jacking hydraulic cylinder 11 to open the plug 7, and the paste filling main pipeline is subjected to overpressure unloading.
The assembly of this valve ball head assembly: the plug 7, the ball head cover plate 8 and the 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, then the connecting sleeve 10 and the piston head thread of the jacking hydraulic cylinder 11 are screwed tightly, and then the two parts are connected through a pin shaft. The valve outlet is provided with a grid 4 for filling the recovery of the pipeline cleaning balls. 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 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 and a quick clamp;
the method is characterized in that: further comprising: a ball cover plate and a cover plate bolt; one end of the plug is provided with a hemispherical recess, the front part of the ball head column is positioned in the plugged hemispherical recess, and the ball head 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, the ball head cover plate is fixed on the end face of the plug through a cover plate bolt, and the ball head cover plate and the ball head are in interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123057307.XU CN216382713U (en) | 2021-12-08 | 2021-12-08 | Coal mine paste filling overpressure unloading valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123057307.XU CN216382713U (en) | 2021-12-08 | 2021-12-08 | Coal mine paste filling overpressure unloading valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216382713U true CN216382713U (en) | 2022-04-26 |
Family
ID=81222168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123057307.XU Active CN216382713U (en) | 2021-12-08 | 2021-12-08 | Coal mine paste filling overpressure unloading valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216382713U (en) |
-
2021
- 2021-12-08 CN CN202123057307.XU patent/CN216382713U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204944764U (en) | Preventer hermetic seal test unit | |
| CN216382713U (en) | Coal mine paste filling overpressure unloading valve | |
| CN110778819B (en) | Installation method of blast furnace air inlet pipeline and hydraulic system | |
| CN209394615U (en) | Band gas is changed the shuttle valve tooling | |
| CN218094772U (en) | Coal mine paste filling overpressure unloading valve convenient to maintain | |
| CN109538451B (en) | Hydraulic guide type sealing membrane head of ultrahigh pressure diaphragm compressor | |
| CN106285544B (en) | Thermal recovery steam injection well head closing device | |
| CN114635973B (en) | Main steam high-temperature high-pressure replaceable valve seat stop valve | |
| CN203477001U (en) | Controllable hydraulic self-tightening nut | |
| CN211287582U (en) | Non-killing well under-pressure semi-automatic gate changing device | |
| CN206256897U (en) | A kind of totally-enclosed high pressure valve leakage controlling device | |
| CN204985890U (en) | Release valve | |
| CN104213848A (en) | Arc-shaped sealing device for opening hole of pipeline or drill rod with pressure and using method | |
| CN111706287A (en) | Hydraulic annular wellhead casing flange quick installing device | |
| CN109695754B (en) | Hydraulic oil inlet valve | |
| CN111119772A (en) | Non-killing well under-pressure semi-automatic gate changing device | |
| CN207554010U (en) | A kind of wellhead assembly valve allowing pressurized maintenance device | |
| CN208381452U (en) | A kind of cylinder valve pneumatic actuator component | |
| CN208812018U (en) | A kind of bolt tensioning jack of Quick fastening and disassembly | |
| CN220622757U (en) | Hydraulic test blocking valve | |
| CN218934370U (en) | Blowout preventer for oil gas development | |
| CN220910549U (en) | Multifunctional two-group valve structure based on low cost | |
| CN202338669U (en) | Coal mine paste filling overpressure unloading valve | |
| CN219694430U (en) | Quick-change connector for safety valve test | |
| CN211951565U (en) | Quick reset type safety valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |