Petroleum equipment safety valve

Abstract

The utility model discloses a petroleum equipment safety valve which comprises a valve body and a middle pipe, a pressure adjusting component is arranged at the top of the valve body, and the valve body is communicated with the interior of the pressure adjusting component. According to the safety valve, the filter screen is fixed in the containing groove in the middle pipe, so that petroleum flowing through the safety valve can be effectively filtered, the situation that some impurities in the petroleum possibly block the valve body and damage elements in the valve body is avoided, the service life of the safety valve is prolonged, and safe use of the safety valve is ensured; the filter screen is fixed in the placing groove through the limitation of the spring rod and the rebound effect of the pressure spring at the bottom of the fixing ring, so that the filter screen can be conveniently disassembled and replaced, the disassembly time is shortened, the labor intensity of maintenance personnel is reduced, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valves, in particular to a safety valve for petroleum equipment. Background Art

[0002] A safety valve is a special valve that is normally closed under the action of external force. When the medium pressure in the equipment or pipeline exceeds the specified value, the medium is discharged to the outside of the system to prevent the medium pressure in the pipeline or equipment from exceeding the specified value. The safety valve belongs to the automatic valve type and is mainly used in boilers, pressure vessels and pipelines to control the pressure not to exceed the specified value. It plays an important protective role in personal safety and equipment operation. Safety valves are also used in oil drilling and transportation.

[0003] However, it is difficult for the existing safety valve to effectively filter the oil flowing through the safety valve. After the oil enters the valve body, some impurities in the oil may cause blockage of the valve body and damage the components inside the valve body, which can easily reduce the service life of the safety valve and affect the safe use of the safety valve; and it is troublesome to disassemble and replace the filter screen, which takes a long time to repair and replace, increasing the labor intensity of maintenance personnel and easily affecting maintenance efficiency. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art, which are that the valve body is blocked and the components in the valve body are damaged, which easily reduces the service life of the safety valve, affects the safe use of the safety valve, and easily affects the maintenance efficiency, and proposes a safety valve for petroleum equipment.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A safety valve for petroleum equipment comprises a valve body and an intermediate pipe. A pressure regulating component is arranged on the top of the valve body, and the valve body and the interior of the pressure regulating component are communicated with each other.

[0007] A liquid inlet pipe is arranged at the bottom of the valve body, an intermediate pipe is arranged at the bottom end of the liquid inlet pipe, a placement groove is opened on the intermediate pipe, a plurality of compression springs are arranged in the placement groove, a fixing ring is arranged on the top of the plurality of compression springs, a filter is arranged on the fixing ring, four installation grooves are opened on the intermediate pipe, a through groove is opened in each of the four installation grooves, a spring rod is arranged in each of the four installation grooves, and one end of the spring rod cooperates with the through groove.

[0008] Preferably, a liquid outlet pipe is provided on one side of the valve body, and the liquid outlet pipe is communicated with the interior of the valve body.

[0009] Preferably, flanges are provided on both the intermediate tube and the liquid outlet tube.

[0010] Preferably, a limit plate is provided at one end of the spring rod, a locking column is provided at one side of the limit plate, and the locking column cooperates with the through slot.

[0011] Preferably, a connecting disk is provided at the top end of the compression spring, and a positioning groove is provided on the connecting disk.

[0012] Preferably, a positioning column is provided at the bottom end of the compression spring, and the positioning column cooperates with the positioning groove.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model adopts the structural design of the intermediate pipe. When the device is used, the filter screen is fixed in the placement groove on the intermediate pipe, so that the oil flowing through the safety valve can be effectively filtered to prevent some impurities in the oil from clogging the valve body and damaging the components in the rear valve body, thereby increasing the service life of the safety valve and ensuring the safe use of the safety valve;

[0015] 2. The utility model fixes the filter in the placement groove through the structural design of the spring rod, the restriction of the spring rod and the rebound effect of the compression spring at the bottom of the fixing ring, so that the filter can be easily disassembled and replaced, shortening the disassembly time, reducing the labor intensity of maintenance personnel, and improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the safety valve structure proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the safety valve structure proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the assembly structure of the intermediate tube, filter screen and fixing ring proposed by the utility model;

[0019] Figure 4 The utility model proposed Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0020] In the figure: 1. valve body; 2. pressure regulating component; 3. liquid inlet pipe; 4. intermediate pipe; 401. placement groove; 402. installation groove; 403. through groove; 5. liquid outlet pipe; 6. spring rod; 601. locking column; 7. filter screen; 8. fixing ring; 9. compression spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4A safety valve for petroleum equipment includes a valve body 1 and an intermediate pipe 4. A pressure regulating component 2 is arranged on the top of the valve body 1, which can regulate the pressure of the oil flowing through the valve body 1. The valve body 1 and the interior of the pressure regulating component 2 are communicated with each other. A liquid outlet pipe 5 is arranged on one side of the valve body 1, and the liquid outlet pipe 5 is communicated with the interior of the valve body 1.

[0023] The bottom of the valve body 1 is provided with a liquid inlet pipe 3, an intermediate pipe 4 is provided at the bottom end of the liquid inlet pipe 3, flanges are provided on the intermediate pipe 4 and the liquid outlet pipe 5, a placement groove 401 is provided on the intermediate pipe 4, a plurality of compression springs 9 are provided in the placement groove 401, and the filter screen 7 can be restricted by the rebound effect of the compression spring 9, a connecting plate is provided at the top of the compression spring 9, a positioning groove is provided on the connecting plate, a positioning column is provided at the bottom end of the compression spring 9, the positioning column cooperates with the positioning groove, a fixing ring 8 is provided at the top of the plurality of compression springs 9, and a filter screen 7 is provided on the fixing ring 8; when in use, the external delivery liquid is conveyed to the outer casing of the valve body 1, and the filter screen 7 is provided on the fixing ring 8. The pipe is fixed to the flange on the liquid inlet pipe 3 by bolts, and the petroleum liquid is transported to the placement groove 401 through the intermediate pipe 4, then flows through the filter screen 7 into the liquid inlet pipe 3, and then enters the valve body 1, and flows out through the liquid outlet pipe 5 under the adjustment and monitoring of the pressure regulating component 2, so as to adjust the pressure of the oil flowing through the valve body 1, so as to effectively filter the oil flowing through the safety valve, avoid some impurities in the oil from clogging the valve body 1 and damaging the components in the rear valve body 1, thereby improving the service life of the safety valve and ensuring the safe use of the safety valve.

[0024] Four mounting grooves 402 are provided on the middle tube 4, and through grooves 403 are provided in the four mounting grooves 402. Spring rods 6 are provided in the four mounting grooves 402 to fix the filter screen 7. One end of the spring rod 6 cooperates with the through groove 403. A limit plate is provided at one end of the spring rod 6. A locking column 601 is provided on one side of the limit plate. The locking column 601 cooperates with the through groove 403. When the filter screen 7 needs to be repaired and disassembled after long-term use, the four spring rods 6 installed in the mounting grooves 402 are pulled at the same time, so that the four spring rods 6 are contracted in the mounting grooves 402. After one end of the spring rod 6 is contracted to the mounting groove 402, the restriction on the filter screen 7 is released, and the bottom of the fixing ring 8 is fixed. Several compression springs 9 rebound to pop the filter 7 out of the placement slot 401. After the filter 7 is taken out, a new filter 7 is taken out and then the filter 7 is placed on the surface of the fixing ring 8 in the placement slot 401 on the intermediate tube 4. The filter 7 is then pressed downward to compress the several compression springs 9 at the bottom of the fixing ring 8. Then the four spring rods 6 are released and one end of the four spring rods 6 rebounds to restrict the filter 7 to the fixing ring 8 in the placement slot 401. The filter 7 is stably fixed in the placement slot 401 through the elastic action of the several compression springs 9 at the bottom of the fixing ring 8, so that the filter 7 can be conveniently disassembled and replaced, thereby shortening the disassembly time, reducing the labor intensity of maintenance personnel, and improving maintenance efficiency.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safety valve for petroleum equipment, comprising a valve body (1), characterized in that: A pressure regulating component (2) is provided on the top of the valve body (1), and the valve body (1) and the interior of the pressure regulating component (2) are communicated with each other; The valve body (1) further comprises an intermediate tube (4), a liquid inlet tube (3) being arranged at the bottom of the valve body (1), the intermediate tube (4) being arranged at the bottom end of the liquid inlet tube (3), a placement groove (401) being provided on the intermediate tube (4), a plurality of compression springs (9) being arranged in the placement groove (401), a fixing ring (8) being arranged at the top end of the plurality of compression springs (9), a filter screen (7) being arranged on the fixing ring (8), four installation grooves (402) being provided on the intermediate tube (4), a through groove (403) being provided in each of the four installation grooves (402), a spring rod (6) being arranged in each of the four installation grooves (402), one end of the spring rod (6) being matched with the through groove (403).

2. A safety valve for petroleum equipment according to claim 1, characterized in that: A liquid outlet pipe (5) is provided on one side of the valve body (1), and the liquid outlet pipe (5) is communicated with the interior of the valve body (1).

3. A safety valve for petroleum equipment according to claim 1 or 2, characterized in that: Flanges are provided on the intermediate pipe (4) and the liquid outlet pipe (5).

4. A safety valve for petroleum equipment according to claim 1, characterized in that: A limit plate is provided at one end of the spring rod (6), a locking column (601) is provided at one side of the limit plate, and the locking column (601) cooperates with the through slot (403).

5. A safety valve for petroleum equipment according to claim 1, characterized in that: A connection disk is provided at the top end of the compression spring (9), and a positioning groove is provided on the connection disk.

6. A safety valve for petroleum equipment according to claim 5, characterized in that: A positioning column is arranged at the bottom end of the compression spring (9), and the positioning column cooperates with the positioning groove.

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