CN220625737U - Large-scale relief valve verifying attachment - Google Patents
Large-scale relief valve verifying attachment Download PDFInfo
- Publication number
- CN220625737U CN220625737U CN202322392172.5U CN202322392172U CN220625737U CN 220625737 U CN220625737 U CN 220625737U CN 202322392172 U CN202322392172 U CN 202322392172U CN 220625737 U CN220625737 U CN 220625737U
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- Prior art keywords
- valve
- safety valve
- overflow
- checking
- flange plate
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- 239000007789 gas Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 4
- 238000012795 verification Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a large-scale safety valve checking device, which comprises a safety valve clamping checking table, wherein a flange plate communicated with a safety valve is arranged on the checking table, the flange plate is connected with a gas cylinder through a gas path, a one-way valve, a pressure reducing valve and an overflow valve are sequentially arranged on a gas path at the outlet end of the gas cylinder, the two overflow valves are arranged side by side, pressure gauges are respectively arranged on the two overflow valves, an emptying pipeline provided with a stop valve is also arranged on the gas path at the overflow valve, and a flow measuring device opposite to the outlet of the safety valve is also arranged on the checking table.
Description
Technical Field
The utility model relates to a large-scale safety valve checking device.
Background
With the increasing steel production capability and the increasing elaboration of mechanical equipment, the following pipe network composed of various gases, coke gases and mixed gases is also increasingly huge, and the caliber is higher than that of a water-swelling ship, which also leads to the generation of a large-caliber safety valve. The safety valve, as an accessory to the pressure vessel, is the last line of defense to protect the line from overpressure damage, and its safety aspect is such that a spot is visible. The check steps of the safety valve are not more, and the safety valve consists of appearance inspection, disassembly inspection, setting pressure and sealing experiments, but because the equipment is old, the safety valve with the caliber above DN250 can only be placed on a wooden bench as a temporary check support by the team when checking the safety valve. The method needs to frequently dismount the air tap connected with the flange, so that the joint leaks air, judgment of verification personnel is affected, and a safety valve is likely to topple over due to release of pressure in the verification process, so that serious injury accidents occur.
The embodiment of the utility model discloses a combined safety valve checking table, which comprises a box body, wherein a plurality of object placing grids are arranged in the box body, each object placing grid comprises a front structure and a rear structure, a manual hydraulic pump and a connecting pipe are arranged in the front structure, a high-pressure gas cylinder, a portable checking table, an electric hydraulic station and a large-caliber hydraulic clamping table are sequentially arranged in the rear structure from left to right, two sides of a rear panel of the box body are fixed through a lock catch, the bottoms of the rear panel are connected through a hinge, the equipment is formed by combining a plurality of modules, a plurality of combined working modes can be selected according to the actual working environment, high-pressure or low-pressure safety valve checking can be carried out under the condition of no fixed field and electric power supply, the whole equipment can be installed in a small-sized passenger car, the transportation is convenient, the electric hydraulic station is arranged, one-key clamping of the safety valve can be realized, and the fixed mode allows the equipment to check the large-caliber safety valve.
The embodiment of the utility model discloses a clean pollution-free cleaning agent, which is disclosed in patent number ZL 992266289; the pressure regulating range is wide, the pressurizing speed is high, the control precision is high, the checking range of the pressure gauge can meet the safety valve checking requirements of various pressure grade specifications, and the automatic clamping device is convenient and reliable, and is safe and stable in automatic pressurizing. The accuracy of the verification is ensured, and the reading is accurate. And the operation is easy to carry out in the verification process of the staff, a series of complex procedures such as manual positioning and clamping, manual inflation and the like are reduced, and the performance advantages such as the working efficiency and the like are greatly improved.
Disclosure of Invention
The utility model aims to provide a large-sized safety valve checking device, which simplifies operation steps, reduces repeated work and improves checking efficiency under the condition of completing safety checking.
The technical scheme includes that the large safety valve checking device comprises a safety valve clamping checking table, a flange plate communicated with a safety valve is arranged on the checking table, the flange plate is connected with a gas cylinder through a gas path, a one-way valve, a pressure reducing valve and an overflow valve are sequentially arranged on a gas path at an outlet end of the gas cylinder, the two overflow valves are arranged side by side and are respectively provided with a pressure gauge, an emptying pipeline provided with a stop valve is further arranged on the gas path at the overflow valve, and a flow measuring device opposite to an outlet of the safety valve is further arranged on the checking table.
The design is leveled by the leveling mechanism, so that the gravity of the safety valve falling on the supporting block is vertical to the panel, and the effect of preventing the safety valve from shaking by utilizing the self weight and static friction force of the safety valve is achieved. The quick connection is achieved by using a fixed interface on the flange plate. The nut is tightened by utilizing the interval between the supporting block and the panel, so that the sealing surface is tightly attached to be airtight. The pressure reducing valve is used to control the rising speed of the air pressure in the air path so as to make the air pressure rise steadily. The utility model improves the checking caliber of the original equipment, can theoretically check all caliber safety valves in the weight bearing range, and completes the check work of the DN350 safety valve according to the field practice.
Drawings
Fig. 1 is a schematic diagram of a connection structure according to the present utility model.
Description of the embodiments
The utility model provides a large-scale relief valve verifying attachment, as shown in FIG. 1, including relief valve centre gripping check table 8, be provided with the ring flange that is linked together with relief valve 10 on this check table 8, the ring flange is connected gas cylinder 1 through the gas circuit, the outlet port gas circuit of gas cylinder 1 has set gradually check valve 2, relief valve 3 and overflow valve 5, 6, the overflow valve is two of arranging side by side, be equipped with manometer 4 on it respectively, still be provided with a relief pipeline of installing stop valve 7 on the gas circuit of overflow valve department, still be provided with the flow measurement device 9 relative with the relief valve 10 export on the check table.
Claims (1)
1. The utility model provides a large-scale relief valve verifying attachment, includes relief valve centre gripping check table, characterized by: the check table is provided with a flange plate communicated with the safety valve, the flange plate is connected with the gas cylinder through a gas circuit, the gas circuit at the outlet end of the gas cylinder is sequentially provided with a one-way valve, a pressure reducing valve and an overflow valve, the overflow valves are two arranged side by side, pressure gauges are respectively arranged on the two overflow valves, the gas circuit at the overflow valve is further provided with an emptying pipeline provided with a stop valve, and the check table is further provided with a flow measuring device opposite to the outlet of the safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322392172.5U CN220625737U (en) | 2023-09-04 | 2023-09-04 | Large-scale relief valve verifying attachment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322392172.5U CN220625737U (en) | 2023-09-04 | 2023-09-04 | Large-scale relief valve verifying attachment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220625737U true CN220625737U (en) | 2024-03-19 |
Family
ID=90222827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322392172.5U Active CN220625737U (en) | 2023-09-04 | 2023-09-04 | Large-scale relief valve verifying attachment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220625737U (en) |
-
2023
- 2023-09-04 CN CN202322392172.5U patent/CN220625737U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |