External verification base for safety valve

Abstract

The invention discloses an external verification base for a safety valve. The external verification base comprises a verification disc assembly, a porous flange base and a bracket structural member, the moving mechanism is installed at the bottom end of the support structural part, the porous flange base is installed on the upper side of the support structural part, the verification disc assembly is installed on the upper side of the porous flange base, the pipe tooth connecting port is installed in the middle of the bottom end of the porous flange base, and the control groove is installed in the upper end of the porous flange base. The verification disc assembly is composed of a first verification disc, a second verification disc, a third verification disc, a fourth verification disc, a fifth verification disc and a sixth verification disc. The verification disc assembly is composed of the first verification disc, the second verification disc, the third verification disc, the fourth verification disc, the fifth verification disc and the sixth verification disc and can be suitable for safety valves of various sizes, after the safety valves are maintained and processed, the safety valves are fixed to the porous flange base through the fixing bolts, and then the safety valves can be verified on site.

Description

Technical Field

[0001] The invention relates to the technical field of safety valve calibration, in particular to an external calibration base for a safety valve. Background Art

[0002] With the further deepening of my country's industrialization, safety valves are widely used in industries such as boilers, chemicals, and pressure vessels. According to TSG ZF001-2006 "Safety Technical Supervision Regulations for Safety Valves" and related safety technical supervision regulations for boilers and pressure vessels, safety valves are generally calibrated once a year.

[0003] Chinese patent number CN201920291269.8 discloses a safety valve inspection bench, including a base provided with a mounting groove, a piston ring being piston-fittedly connected in the mounting groove, an air supply pipe fixed to the base being provided in the piston ring, a sealing film being sleeved on the outer wall of the air supply pipe higher than the bottom surface of the mounting groove, the sealing film forming a closed chamber with the piston ring through the inner wall of the base, the expansion and contraction of the sealing film is controlled when the piston ring slides up and down, and a plurality of fixed plates slidably connected to the base through fixed plate springs are provided on the outside of the piston ring; when the safety valve is located in the mounting groove, the sealing film is tightly attached to the inner wall of the safety valve, and the fixed plate moves to the top of the side wing of the safety valve for limiting.

[0004] During use, it is very inconvenient to calibrate safety valves of different sizes because the size of the installation groove is relatively single. Summary of the invention

[0005] The purpose of the present invention is to provide an external verification base for a safety valve to solve the problems raised in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an external calibration base for a safety valve, comprising a calibration disk assembly, a porous flange base and a bracket structure; a moving mechanism is installed at the bottom end of the bracket structure, the porous flange base is installed at the upper side of the bracket structure, the calibration disk assembly is installed on the upper side of the porous flange base, a pipe thread connection interface is installed at the middle position of the bottom end of the porous flange base, a control groove is installed at the upper end of the porous flange base, a plurality of flange holes of various specifications are arranged at the upper end of the porous flange base, a notch is arranged on one side of the porous flange base, the notch is interconnected with the air source air inlet interface, the calibration disk assembly consists of a first calibration disk, a second calibration disk, a third calibration disk, a fourth calibration disk, a fifth calibration disk and a sixth calibration disk, and a safety valve is installed at the upper end of the porous flange base by fixing bolts.

[0007] Preferably, the control groove is configured as a stepped groove.

[0008] Preferably, the first check disk, the second check disk, the third check disk and the fourth check disk are stacked on the support structure.

[0009] Preferably, a control seat is placed under the first check disk, the second check disk, the third check disk and the fourth check disk, and the control seat is placed at the bottom end of the second check disk, the third check disk, the fourth check disk and the bracket structure.

[0010] Preferably, a box door is rotatably mounted on the outer side of the support structure, and a handle is mounted on the upper side of the box door.

[0011] Preferably, a storage box is installed at one end of the outer side of the support structure, and a fifth calibration tray and a sixth calibration tray are placed inside the storage box.

[0012] Preferably, the moving mechanism is composed of a rubber wheel and a fixing clamp, the rubber wheel is installed around the bottom end of the bracket structure, and the fixing clamp is rotatably installed on one side of the rubber wheel.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The check disk assembly consists of the first check disk, the second check disk, the third check disk, the fourth check disk, the fifth check disk and the sixth check disk, which can be applied to safety valves of various sizes. After maintenance, the safety valve is fixed on the porous flange base by fixing bolts, and the safety valve can be checked on site;

[0015] 2. The step-shaped groove of the control slot facilitates the calibration of the calibration disk assembly, thereby facilitating the rapid assembly of the calibration disk assembly required;

[0016] 3. The setting of the control seat can separate the first check disk, the second check disk, the third check disk and the fourth check disk on the one hand, and can prevent the first check disk, the second check disk, the third check disk and the fourth check disk from rubbing against each other and causing wear;

[0017] 4. The fifth and sixth calibration trays are relatively small in size, and the storage box is provided to facilitate the placement of the relatively small fifth and sixth calibration trays inside the storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2It is a schematic diagram of the structure of the support structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the support structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the top view of the support structure of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the calibration disk assembly of the present invention.

[0024] In the figure: 1. safety valve; 2. fixing bolt; 3. pipe thread connection interface; 4. air source air inlet interface; 5. multi-hole flange base; 6. control groove; 7. flange holes of various specifications; 8. notch; 9. first calibration disk; 10. second calibration disk; 11. third calibration disk; 12. fourth calibration disk; 13. fifth calibration disk; 14. sixth calibration disk; 15. control seat; 16. bracket structure; 17. rubber wheel; 18. moving mechanism; 19. fixing clamp; 20. calibration disk assembly; 21. handle; 22. box door; 23. storage box. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 In the embodiment of the present invention, the safety valve external verification base includes a verification disk assembly 20, a porous flange base 5 and a bracket structure 16; a moving mechanism 18 is installed at the bottom of the bracket structure 16, the porous flange base 5 is installed at the upper side of the bracket structure 16, the verification disk assembly 20 is installed on the upper side of the porous flange base 5, a pipe thread connection interface 3 is installed at the middle position of the bottom of the porous flange base 5, a control groove 6 is installed at the upper end of the porous flange base 5, a plurality of multi-specification flange holes 7 are arranged at the upper end of the porous flange base 5, a notch 8 is arranged on one side of the porous flange base 5, and the notch 8 is interconnected with the air source inlet interface 4, the verification disk assembly 20 is composed of a first verification disk 9, a second verification disk 10, a third verification disk 11, a fourth verification disk 12, a fifth verification disk 13 and a sixth verification disk 14, and a safety valve 1 is installed at the upper end of the porous flange base 5 through a fixing bolt 2.

[0027] Furthermore, the control groove 6 is configured as a stepped groove, and the control groove 6 is configured in a stepped groove shape, which facilitates calibration of the calibration disk assembly 20, thereby facilitating rapid assembly of the calibration disk assembly 20 to be used.

[0028] Furthermore, the first check disk 9, the second check disk 10, the third check disk 11 and the fourth check disk 12 are stacked on the support structure 16, and the unused first check disk 9, the second check disk 10, the third check disk 11 and the fourth check disk 12 are stacked inside the support structure 16 to facilitate the storage of the first check disk 9, the second check disk 10, the third check disk 11 and the fourth check disk 12.

[0029] Furthermore, a control seat 15 is placed under the first check disk 9, the second check disk 10, the third check disk 11 and the fourth check disk 12. The control seat 15 is placed at the bottom end of the second check disk 10, the third check disk 11, the fourth check disk 12 and the bracket structure 16. The setting of the control seat 15 can, on the one hand, separate the first check disk 9, the second check disk 10, the third check disk 11 and the fourth check disk 12, and on the other hand, it can prevent the first check disk 9, the second check disk 10, the third check disk 11 and the fourth check disk 12 from rubbing against each other and causing wear.

[0030] Furthermore, a box door 22 is rotatably installed on the outer side of the support structure 16, and a handle 21 is installed on the upper side of the box door 22. The setting of the box door 22 is used to close the support structure 16 to facilitate protection of the inside of the support structure 16. The setting of the handle 21 is convenient for the staff to hold, thereby facilitating the opening and closing of the box door 22.

[0031] Furthermore, a storage box 23 is installed at one end of the outer side of the support structure 16, and the fifth verification disk 13 and the sixth verification disk 14 are placed inside the storage box 23. The fifth verification disk 13 and the sixth verification disk 14 are relatively small in size, and the setting of the storage box 23 facilitates the placement of the smaller fifth verification disk 13 and the sixth verification disk 14 inside the storage box 23.

[0032] Furthermore, the moving mechanism 18 is composed of a rubber wheel 17 and a fixing clamp 19. The rubber wheel 17 is installed around the bottom end of the bracket structure 16, and the fixing clamp 19 is rotatably installed on one side of the rubber wheel 17. The setting of the rubber wheel 17 facilitates the movement of the bracket structure 16 during use, and the setting of the fixing clamp 19 facilitates the fixing of the rubber wheel 17.

[0033] The working principle and use process of the present invention are as follows: when the safety valve 1 needs to be inspected again after maintenance, the corresponding inspection disk assembly is selected according to the size of the safety valve 1, and the corresponding inspection disk assembly is installed inside the control groove 6 on the upper side of the porous flange base 5, and then the safety valve 1 is installed on the upper side of the porous flange base 5 through the fixing bolts 2, and the air source air inlet interface 4 is installed inside the groove 8 to connect with the safety valve 1, and the outside air is introduced into the safety valve 1 through the air source air inlet interface 4 to calibrate the safety valve 1. Therefore, after the maintenance, the safety valve 1 is fixed to the porous flange base 5 by the fixing bolts, and the safety valve 1 can be calibrated on site.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety valve external calibration base, comprising a calibration disc assembly (20), a porous flange base (5) and a bracket structure (16); characterized in that: The bottom end of the support structure (16) is provided with a moving mechanism (18), the porous flange base (5) is provided at an upper position of the support structure (16), the check disk assembly (20) is provided at an upper side of the porous flange base (5), a pipe thread connection interface (3) is provided at a middle position of the bottom end of the porous flange base (5), a control groove (6) is provided at an upper end of the porous flange base (5), a plurality of flange holes (7) of various specifications are provided at an upper end of the porous flange base (5), a notch (8) is provided on one side of the porous flange base (5), the notch (8) is interconnected with an air source inlet interface (4), the check disk assembly (20) is composed of a first check disk (9), a second check disk (10), a third check disk (11), a fourth check disk (12), a fifth check disk (13) and a sixth check disk (14), and a safety valve (1) is provided at an upper end of the porous flange base (5) through a fixing bolt (2).

2. The safety valve external verification base according to claim 1, characterized in that: The control groove (6) is configured as a stepped groove.

3. The safety valve external verification base according to claim 1, characterized in that: The first calibration disc (9), the second calibration disc (10), the third calibration disc (11) and the fourth calibration disc (12) are stacked on the support structure (16).

4. The safety valve external verification base according to claim 1, characterized in that: A control seat (15) is placed below the first check disk (9), the second check disk (10), the third check disk (11) and the fourth check disk (12); the control seat (15) is placed at the bottom end of the second check disk (10), the third check disk (11), the fourth check disk (12) and the support structure (16).

5. The safety valve external verification base according to claim 1, characterized in that: A box door (22) is rotatably mounted on the outer side of the support structure (16), and a handle (21) is mounted on the upper side of the box door (22).

6. The safety valve external verification base according to claim 1, characterized in that: A storage box (23) is installed at one end of the outer side of the support structure (16), and a fifth calibration tray (13) and a sixth calibration tray (14) are placed inside the storage box (23).

7. The safety valve external verification base according to claim 1, characterized in that: The moving mechanism (18) is composed of a rubber wheel (17) and a fixing clamp (19); the rubber wheel (17) is installed around the bottom end of the support structure (16); and the fixing clamp (19) is rotatably installed on one side of the rubber wheel (17).

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