Safety valve pressure checking table

Abstract

The utility model relates to the technical field of safety valve detection, and provides a safety valve pressure calibration table, which comprises a calibration table, threaded rods are fixedly connected to two sides of the middle of the top surface of the calibration table, a clamping ring is sleeved on the top surface of the calibration table, and the clamping ring is fixed on the top surface of the calibration table through the threaded rods in a threaded manner. According to the utility model, through the arrangement of the clamping ring and the verification assembly, after a safety valve of a first safety valve or a second safety valve is arranged at the top end of the stamping nozzle, the interior of the detected safety valve can be conveniently connected, and if the safety valve of the first safety valve is displayed, the safety valve of the second safety valve can be conveniently connected. The bottom end of the safety valve needs to be sleeved and fixed by using a clamping ring, so that the stamping nozzle at the bottom end is used for performing stamping detection on the interior, and when some small safety valves of the second safety valve type are adopted, the threads at the bottom end are connected into the threads on the inner side wall of the threaded groove, so that sealing detection is performed, and the safety valve is adaptive to safety valves with various types of interfaces.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valve detection, in particular to a safety valve pressure calibration bench. Background Art

[0002] A safety valve is a special valve whose opening and closing components are normally closed under external forces. When the pressure of the medium in the equipment or pipeline rises above a specified value, it discharges the medium to the outside of the system to prevent the pressure in the pipeline or equipment from exceeding the specified value. Safety valves are automatic valves, primarily used in boilers, pressure vessels, and pipelines. They control pressure to within a specified value, playing a vital role in protecting personnel and equipment operation. Note: Safety valves must undergo pressure testing before use. Because they are at the bottom of the equipment, quality is crucial, so they require inspection and calibration.

[0003] After searching, the existing patent (publication number: CN 221571836 U) discloses a safety valve calibration device. Although the safety valve calibration device, the utility model provides a safety valve calibration device, including a pipe body, an instrument group, and a pressure test plate; the pipe body is divided into a first pipe section and a second pipe section by a connecting assembly; the instrument group and the pipe valve group are both arranged in the first pipe section;

[0004] The pressure test plate is arranged at the end of the second pipe section away from the instrument group; the end of the first pipe section away from the second pipe section is connected to the gas source tank; the online pressure calibration device provided by the utility model saves time and labor, and the calibration is efficient and fast, avoiding the tedious transfer calibration after on-site disassembly, and is convenient for flexible adjustment of the instrument position for observation.

[0005] However, the above solution still has certain shortcomings. Since the safety valve interface of the device has a relatively simple safety valve connection structure, it cannot be well adapted to safety valves of different models.

[0006] In view of this, the utility model proposes a safety valve pressure calibration bench. Utility Model Content

[0007] The utility model provides a safety valve pressure calibration bench, which solves the problem in the related art that the safety valve interface of the device has a relatively simple safety valve connection structure and cannot be well adapted to safety valves of different models.

[0008] The technical solution of the utility model is as follows: A safety valve pressure calibration bench, comprising: a calibration bench, threaded rods are fixedly connected to both sides of the middle part of the top surface of the calibration bench, a clamping ring is sleeved on the top surface of the calibration bench, and the clamping ring is threadedly fixed to the top surface of the calibration bench through the threaded rod, a groove is provided on the top surface of the calibration bench, a calibration component is provided on the inner bottom wall of the groove, a cavity groove is provided inside the calibration bench, and the interior of the cavity groove is shielded by a bench door.

[0009] Preferably, the calibration component includes an inner ring, which is fixed in the inner bottom wall of the groove, and an equidistant gap is set between the inner ring and the groove. A threaded groove is opened in the middle of the inner ring, and a stamping nozzle is fixedly connected to the inner bottom wall of the threaded groove, and the inner ring is fixed between the groove and the stamping nozzle.

[0010] Preferably, a stamping gas tank is fixedly connected to the interior of the cavity tank, a top end of the stamping gas tank is connected through a one-way valve, and the other end of the one-way valve is connected through a mixing tank.

[0011] Preferably, the top end of the mixing tank is connected with a pipe, and the pipe passes through the middle of the calibration table and is arranged in the middle of the stamping nozzle.

[0012] Preferably, a mixing pipe is connected through one side of the mixing tank, a pressure relief pipe is connected through one side of the bottom surface of the mixing tank, and the pressure relief pipe is arranged on the side away from the one-way valve.

[0013] Preferably, a first sealing ring is fixedly connected to the inner side of the bottom surface of the snap ring, and a second sealing ring is fixedly connected to the outer side of the bottom surface of the snap ring.

[0014] Preferably, the interior of the clamping ring is clamped with the No. 1 safety valve, and the bottom end of the surface of the No. 1 safety valve is clamped and sealed by the clamping ring.

[0015] Preferably, the internal thread of the threaded groove is threaded with a No. 2 safety valve, and the bottom end of the No. 2 safety valve is in direct contact with the stamping nozzle.

[0016] The working principle and beneficial effects of the utility model are as follows:

[0017] In the present invention, after the safety valve of the No. 1 safety valve or the No. 2 safety valve model is placed on the top of the stamping nozzle through the arrangement of the clamping ring and the verification component, it is convenient to connect the internal part of the safety valve for inspection. If the safety valve of the No. 1 safety valve model is displayed, it is necessary to use the clamping ring to sleeve and fix the bottom end of the safety valve, so that the stamping nozzle at the bottom end can be used to perform stamping inspection on the inside. When some smaller safety valves of the No. 2 safety valve type are used, the bottom end is threadedly connected to the thread of the inner wall of the threaded groove to perform sealing inspection, thereby adapting to safety valves with various types of interfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a structural diagram of a safety valve pressure calibration bench proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the perspective structure of a safety valve pressure calibration platform proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the top surface structure of a safety valve pressure calibration platform proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the safety valve of the first type proposed in the present utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the second type of safety valve proposed in the present invention.

[0024] In the figure: 1. Verification table; 2. Threaded rod; 3. Snap ring; 4. Groove; 5. Verification assembly; 501. Inner ring; 502. Threaded groove; 503. Punching nozzle; 6. Cavity groove; 7. Table door; 8. Punching gas tank; 9. One-way valve; 10. Mixing tank; 11. Pipeline; 12. Mixing pipeline; 13. Pressure relief pipeline; 14. First sealing ring; 15. Second sealing ring; 16. Safety valve No. 1; 17. Safety valve No. 2. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The present application discloses a safety valve pressure calibration platform. Figures 1 to 5, including: a calibration table 1, through the setting of the calibration table 1, it can achieve the role of internal and top surface installation parts when in use, the two sides of the middle of the top surface of the calibration table 1 are fixedly connected with threaded rods 2, through the setting of the threaded rods 2, it can achieve the role of fixing the clamping ring 3 on the top surface of the calibration table 1 and fixing the No. 1 safety valve 16 model, the top surface of the calibration table 1 is sleeved with a clamping ring 3, through the setting of the clamping ring 3, it can achieve the role of fixing the No. 1 safety valve 16 model when in use, and the clamping ring 3 is threadedly fixed to the calibration table 1 through the threaded rods 2 The top surface of the calibration table 1 is provided with a groove 4. Through the setting of the groove 4, the internal parts can be placed when in use. The inner bottom wall of the groove 4 is provided with a calibration component 5. Through the setting of the calibration component 5, the pressure of the No. 2 safety valve 17 model can be checked when in use. The interior of the calibration table 1 is provided with a cavity groove 6. Through the setting of the cavity groove 6, the internal parts can be placed when in use, and the interior of the cavity groove 6 is shielded by the table door 7. Through the setting of the table door 7, the interior of the cavity groove 6 can be shielded when in use.

[0027] The verification component 5 includes an inner ring 501. Through the setting of the inner ring 501, the internal installation thread groove 502 can be achieved when in use. The inner ring 501 is fixed in the inner bottom wall of the groove 4, and an equidistant gap is set between the inner ring 501 and the groove 4. A threaded groove 502 is opened in the middle of the inner ring 501. Through the setting of the threaded groove 502, the threaded fixing of the No. 2 safety valve 17 model can be achieved when in use. The inner bottom wall of the threaded groove 502 is fixedly connected to the stamping nozzle 503. Through the setting of the stamping nozzle 503, the verification safety valve can be pressurized when in use, and the inner ring 501 is fixed between the groove 4 and the stamping nozzle 503.

[0028] The interior of the cavity groove 6 is fixedly connected to a punching gas tank 8. Through the setting of the punching gas tank 8, the internal storage air pressure can be pressurized on the detection safety valve when in use. The top of the punching gas tank 8 is connected through a one-way valve 9. Through the setting of the one-way valve 9, the air pressure backflow inside the mixing tank 10 can be avoided when in use. The other end of the one-way valve 9 is connected through the mixing tank 10. Through the setting of the mixing tank 10, the internal mixed gas can be mixed when in use.

[0029] The top of the mixing tank 10 is connected to a pipe 11. Through the setting of the pipe 11, the punching nozzle 503 can be inflated and pressurized during use. The pipe 11 passes through the middle of the calibration table 1 and is set in the middle of the punching nozzle 503.

[0030] A mixing pipe 12 is connected to one side of the mixing tank 10. Through the setting of the mixing pipe 12, an external pipe can be connected when in use, which is convenient for transporting different gases to detect the safety valve. A pressure relief pipe 13 is connected to one side of the bottom of the mixing tank 10. Through the setting of the pressure relief pipe 13, the air pressure inside the mixing tank 10 can be balanced and relieved when in use, and the pressure relief pipe 13 is set on the side away from the one-way valve 9.

[0031] A first sealing ring 14 is fixedly connected to the inner side of the bottom surface of the clamping ring 3. Through the setting of the first sealing ring 14, the detection safety valve can be sealed when in use. A second sealing ring 15 is fixedly connected to the outer side of the bottom surface of the clamping ring 3. Through the setting of the second sealing ring 15, air leakage at the bottom end of the clamping ring 3 can be avoided when in use.

[0032] The interior of the clamping ring 3 is clamped with a No. 1 safety valve 16. Through the arrangement of the No. 1 safety valve 16 and the No. 2 safety valve 17, the function of displaying safety valves of different types of detection can be achieved when in use, and the bottom end of the surface of the No. 1 safety valve 16 is clamped and sealed by the clamping ring 3.

[0033] The internal thread of the threaded groove 502 rotates to function as the No. 2 safety valve 17 , and the bottom end of the No. 2 safety valve 17 directly contacts the punching nozzle 503 .

[0034] Working principle and usage process: After placing the safety valve No. 1 safety valve 16 or the safety valve No. 2 17 on the top of the stamping nozzle 503, it is convenient to connect the internal part of the safety valve for inspection. If the safety valve No. 1 16 is displayed, it is necessary to use the clamping ring 3 to fit the bottom end of the safety valve, so as to use the stamping nozzle 503 at the bottom end to perform stamping inspection on the inside. When some smaller safety valves No. 2 17 are used, the bottom end is threadedly connected to the thread on the inner wall of the threaded groove 502 for sealing inspection, so as to adapt to safety valves with various types of interfaces.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A safety valve pressure calibration bench, comprising: A calibration table (1) is characterized in that threaded rods (2) are fixedly connected to both sides of the middle of the top surface of the calibration table (1), a clamping ring (3) is sleeved on the top surface of the calibration table (1), and the clamping ring (3) is threadedly fixed to the top surface of the calibration table (1) through the threaded rod (2), a groove (4) is provided on the top surface of the calibration table (1), a calibration component (5) is provided on the inner bottom wall of the groove (4), a cavity groove (6) is provided inside the calibration table (1), and the interior of the cavity groove (6) is shielded by a table door (7).

2. A safety valve pressure calibration bench according to claim 1, characterized in that: The calibration component (5) comprises an inner ring (501), the inner ring (501) being fixed in the inner bottom wall of the groove (4), and an equidistant gap being provided between the inner ring (501) and the groove (4), a threaded groove (502) being provided in the middle of the inner ring (501), a punching nozzle (503) being fixedly connected to the inner bottom wall of the threaded groove (502), and the inner ring (501) being fixed between the groove (4) and the punching nozzle (503).

3. A safety valve pressure calibration bench according to claim 1, characterized in that: A punching gas tank (8) is fixedly connected to the interior of the cavity tank (6), a one-way valve (9) is connected to the top end of the punching gas tank (8), and a mixing tank (10) is connected to the other end of the one-way valve (9).

4. A safety valve pressure calibration bench according to claim 3, characterized in that: The top end of the mixing tank (10) is connected to a pipe (11), and the pipe (11) passes through the middle of the calibration table (1) and is arranged in the middle of the punching nozzle (503).

5. A safety valve pressure calibration bench according to claim 4, characterized in that: A mixing pipe (12) is connected through one side of the mixing tank (10), and a pressure relief pipe (13) is connected through one side of the bottom surface of the mixing tank (10), and the pressure relief pipe (13) is arranged on a side away from the one-way valve (9).

6. A safety valve pressure calibration bench according to claim 1, characterized in that: A first sealing ring (14) is fixedly connected to the inner side of the bottom surface of the clamping ring (3), and a second sealing ring (15) is fixedly connected to the outer side of the bottom surface of the clamping ring (3).

7. A safety valve pressure calibration bench according to claim 1, characterized in that: The interior of the clamping ring (3) is clamped with a No. 1 safety valve (16), and the bottom end of the surface of the No. 1 safety valve (16) is clamped and sealed by the clamping ring (3).

8. A safety valve pressure calibration bench according to claim 2, characterized in that: The internal thread of the threaded groove (502) is threaded with a No. 2 safety valve (17), and the bottom end of the No. 2 safety valve (17) is in direct contact with the punching nozzle (503).

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