Pressure leakage test tool for heat exchange tube box

Abstract

The utility model relates to the technical field of heat exchange tube box pressure leakage testing tools, in particular to a heat exchange tube box pressure leakage testing tool which comprises a base and a heat exchange tube box body, a transmission block is arranged on a lead screw, a clamping frame connected with the heat exchange tube box body is fixedly installed at one end of the transmission block, a first gear is fixedly installed at the output end of a driving motor, and a second gear is fixedly installed at the output end of the driving motor. Through the arrangement of the clamping structure, the mode that a mechanical clamp and a plug are generally used in a traditional tool, and the two ends of a heat exchange tube are fixed through bolts or a hydraulic system is changed, so that the clamping force on the heat exchange tube box body can be uniform, and the heat exchange tube box body is not prone to deformation. The situation that part of the area is excessively pressed to deform or even crack, and other areas are not tightly sealed is avoided, and the structure has the advantage that the situation that due to the fact that force is not consistent when the bolt is manually screwed, tiny displacement occurs under high pressure, and sealing fails is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat exchange pipe box pressurizing and leaking tool, particularly to a heat exchange pipe box pressurizing and leaking tool, belongs to heat exchange pipe box pressurizing and leaking tool technical field. BACKGROUND

[0002] The heat exchange pipe box pressurizing and leaking tool originates from the stringent requirements of the industrial field on the sealing property, safety and energy efficiency of heat exchange equipment. With the wide application of heat exchangers in the fields of petrochemical industry, nuclear power and new energy, the leakage of internal medium (such as high-temperature steam and corrosive fluid) of the heat exchanger may lead to safety accidents, energy waste or environmental pollution. At the same time, international standards (such as ASME B31.3 and GB / T 150) require that the heat exchanger must pass the pressure test before leaving the factory to ensure that the sealing property meets the standards. Therefore, it is necessary to develop an efficient and accurate sealing property detection device.

[0003] The traditional heat exchange pipe box pressurizing and leaking tool has a single structure. The tool usually uses a mechanical clamp and a plug. The two ends of the heat exchange pipe are sealed by a bolt or a hydraulic system, and then the pressure test is carried out. If the bolts are unevenly distributed, the heat exchange pipe port will be unevenly stressed, some areas will be excessively compressed (deformed or even cracked), and other areas will be poorly sealed. In addition, the manual tightening of the bolts will result in inconsistent force, and small displacement may occur under high pressure, leading to sealing failure.

[0004] Therefore, it is necessary to improve the heat exchange pipe box pressurizing and leaking tool to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to provide a heat exchange pipe box pressurizing and leaking tool. By setting the clamping structure, the traditional tool usually uses a mechanical clamp and a plug. The two ends of the heat exchange pipe are sealed by a bolt or a hydraulic system, thereby making the clamping force of the heat exchange pipe box body uniform, avoiding the situation that some areas are excessively compressed and deformed or even cracked, and other areas are poorly sealed. The structure has the advantage of avoiding the situation that small displacement occurs under high pressure due to inconsistent force when the bolts are manually tightened, leading to sealing failure.

[0006] In order to achieve the above purpose, the utility model adopts the following main technical solutions:

[0007] The utility model relates to a heat exchange tube box presss from both sides and leaks frock, including base and heat exchange tube box main part, fluid inlet and fluid outlet are installed on heat exchange tube box main part respectively, the clamping structure is set up on the base, the clamping structure includes the support frame of a plurality of fixed mounting in the top of base and is connected with heat exchange tube box main part, a plurality of drive motor are fixedly installed on the base, the side swingly mounted with the lead screw of drive motor is connected with the base, the transmission block is set up on the lead screw, the one end fixed mounting of transmission block is connected with the clamping frame of heat exchange tube box main part, the output fixed mounting of drive motor has first gear, the second gear of fixed mounting with first gear is engaged on the lead screw.

[0008] Preferably, the outer side of the drive motor is fixedly installed with a protective shell, a plurality of heat dissipation holes are formed in the protective shell, and an inspection cover plate is arranged at one end of the protective shell.

[0009] Preferably, the inner side of the inspection cover plate is fixedly installed with a first magnetic ring, and a second magnetic ring is fixedly installed on the protective shell and magnetically connected with the first magnetic ring.

[0010] Preferably, a first support base is fixedly installed at one end of the base, a first cylinder is fixedly installed on the first support base, a first plug is arranged at the output end of the first cylinder and connected with the fluid inlet, a second support base is fixedly installed at the other end of the base, a second cylinder is fixedly installed on the top of the second support base, a connecting plate is fixedly installed at the output end of the second cylinder, and a second plug is installed on one side of the connecting plate.

[0011] Preferably, a limiting hole is formed in the second support base, and a stabilizing rod connected with the connecting plate is swingly installed in the limiting hole.

[0012] Preferably, an installation groove is formed in one side of the connecting plate, a connecting block connected with the second plug is installed in the installation groove, a connecting hole is formed in the connecting plate and the connecting block, a plug rod is swingly installed in the connecting hole, and a clamping bolt is fixedly installed at one end of the plug rod.

[0013] Preferably, a fixing plate is fixedly installed at one end of the connecting plate, an electric telescopic rod is fixedly installed on the top of the fixing plate, a clamping tooth is fixedly installed at the output end of the electric telescopic rod, and a third gear engaged with the clamping tooth is fixedly installed on the plug rod.

[0014] The utility model at least has following beneficial effects:

[0015] The clamping structure changes the traditional way of fixing the two ends of the heat exchange pipe by mechanical clamps and plugs, bolts or hydraulic systems, so that the clamping force of the heat exchange pipe box body can be uniform, and the situation that some areas are excessively compressed and deformed or even cracked, while other areas are not tightly sealed, can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their descriptions serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the first plug structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the connecting block structure of the utility model;

[0020] Figure 4 It is Figure 2 the enlarged view of A in the middle;

[0021] Figure 5 It is Figure 3 the enlarged view of B in the middle;

[0022] Figure 6 It is Figure 3 the enlarged view of C in the middle.

[0023] In the drawings, 1 is a base, 2 is a heat exchange pipe box body, 3 is a fluid inlet, 4 is a fluid outlet, 5 is a clamping structure, 6 is a support frame, 7 is a driving motor, 8 is a lead screw, 9 is a transmission block, 10 is a clamping frame, 11 is a first gear, 12 is a second gear, 13 is a protective shell, 14 is a heat dissipation hole, 15 is an inspection cover plate, 16 is a first magnetic ring, 17 is a second magnetic ring, 18 is a first support seat, 19 is a first air cylinder, 20 is a first plug, 21 is a second support seat, 22 is a second air cylinder, 23 is a connecting plate, 24 is a second plug, 25 is a limiting hole, 26 is a stabilizing rod, 27 is a mounting groove, 28 is a connecting block, 29 is a connecting hole, 30 is a plug rod, 31 is a clamping bolt, 32 is a fixed plate, 33 is an electric telescopic rod, 34 is a clamping tooth, and 35 is a third gear. DETAILED DESCRIPTION

[0024] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments, based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0025] As Figures 1-6 The utility model provides a heat exchange pipe box pressurization and leakage tool embodiment.

[0026] A heat exchange pipe box pressurization and leakage tool, including base 1 and heat exchange pipe box main part 2, heat exchange pipe box main part 2 is installed fluid inlet 3 and fluid outlet 4 respectively, and the clamping structure 5 is set up on the base 1, and the clamping structure 5 includes a plurality of support frames 6 connected with heat exchange pipe box main part 2 and fixedly installed on the top of base 1, a plurality of drive motors 7 are fixedly installed on the base 1, and the drive motor 7 side movably installs the lead screw 8 connected with the base 1, and the transmission block 9 is set up on the lead screw 8, and one end of the transmission block 9 is fixedly installed with the clamping frame 10 connected with heat exchange pipe box main part 2, and the output end of drive motor 7 is fixedly installed with the first gear 11, and the second gear 12 meshing with the first gear 11 is fixedly installed on the lead screw 8, by the setting of clamping structure 5, change the traditional tool usually uses mechanical clamp and plug, the mode for fixing the two ends of heat exchange pipe by bolt or hydraulic system, so that the clamping force of heat exchange pipe box main part 2 can be uniform, and the situation that some areas are excessively compressed and deformed or even cracked and other areas are not tightly sealed will not appear, when heat exchange pipe box main part 2 carries out leakage test, first, heat exchange pipe box main part 2 is placed on a plurality of support frames 6 to keep stable, then drive motor 7 is started to drive first gear 11 to start rotating, because of the connecting relationship between first gear 11 and second gear 12, when first gear 11 rotates, second gear 12 can also be driven to start rotating, and the transmission block 9 on the lead screw 8 can start moving on the lead screw 8 under the drive of second gear 12, when the transmission block 9 descends, can drive clamping frame 10 to adhere to the upper side of heat exchange pipe box main part 2 and fix and clamp heat exchange pipe box main part 2 under the cooperation of support frame 6, when the transmission block 9 rises, can drive clamping frame 10 to separate from heat exchange pipe box main part 2, so that heat exchange pipe box main part 2 after testing can be taken down, the test of heat exchange pipe box main part 2 can be completed, the advantage of this structure is that it avoids the situation that the sealing fails due to the inconsistent force when manually screwing the bolt under high pressure, resulting in a small displacement.

[0027] As Figure 4As shown, the outer side of the driving motor 7 is fixedly installed with a protective shell 13, a plurality of heat dissipation holes 14 are formed on the protective shell 13, and an inspection cover plate 15 is arranged at one end of the protective shell 13. Through the arrangement of the protective shell 13, the heat dissipation holes 14 and the inspection cover plate 15, the protective effect of the driving motor 7 can be achieved, and the driving motor 7 can be prevented from being damaged by collision. At the same time, the plurality of heat dissipation holes 14 on the protective shell 13 can dissipate the heat generated by the driving motor 7 during operation, so as to prevent the internal temperature of the protective shell 13 from being too high and causing the driving motor 7 to malfunction. Opening the inspection cover plate 15 can facilitate personnel to overhaul the driving motor 7 without disassembling the protective shell 13, thereby saving the time of personnel overhauling the driving motor 7.

[0028] As shown in Figure 4 The inner side of the inspection cover plate 15 is fixedly installed with a first magnetic ring 16, and the protective shell 13 is fixedly installed with a second magnetic ring 17 magnetically connected with the first magnetic ring 16. Through the arrangement of the first magnetic ring 16 and the second magnetic ring 17, the inspection cover plate 15 can be fixed on the protective shell 13 to avoid falling off after being attracted to each other. Due to the characteristics of the first magnetic ring 16 and the second magnetic ring 17, the inspection cover plate 15 can be opened directly without tools, thereby saving the time of personnel opening the inspection cover plate 15.

[0029] As shown in Figure 3 One end of the base 1 is fixedly installed with a first support seat 18, the first support seat 18 is fixedly installed with a first cylinder 19, the output end of the first cylinder 19 is provided with a first plug 20 connected with the fluid inlet 3, the other end of the base 1 is fixedly installed with a second support seat 21, the top of the second support seat 21 is fixedly installed with a second cylinder 22, the output end of the second cylinder 22 is fixedly installed with a connecting plate 23, one side of the connecting plate 23 is installed with a second plug 24. Through the arrangement of the first support seat 18, the first cylinder 19, the first plug 20, the second support seat 21, the second cylinder 22, the connecting plate 23 and the second plug 24, when the first cylinder 19 and the second support seat 21 are started to operate, the first cylinder 19 can drive the first plug 20 to close the fluid inlet 3, and the second cylinder 22 can drive the second plug 24 to close the fluid outlet 4, so as to achieve the sealing effect of the heat exchange pipe box body 2. Manual operation is not required to seal the heat exchange pipe box body 2, which can not only avoid the uncertainty of manual operation, but also save labor.

[0030] As shown in Figure 3As shown, the second support seat 21 is provided with a limiting hole 25, and a stable rod 26 connected with the connecting plate 23 is movably arranged in the limiting hole 25. When the second cylinder 22 drives the connecting plate 23 to move, the stable rod 26 slides in the limiting hole 25, so that the connecting plate 23 can keep stable and avoid shaking to affect the sealing of the second plug 24 to the fluid outlet 4.

[0031] As shown in Figure 3 and Figure 5 , one side of the connecting plate 23 is provided with a mounting groove 27, and a connecting block 28 connected with the second plug 24 is arranged in the mounting groove 27. The connecting plate 23 and the connecting block 28 are both provided with a connecting hole 29, and a plug rod 30 is movably arranged in the connecting hole 29. One end of the plug rod 30 is fixedly provided with a clamping bolt 31. After the plug rod 30 is inserted into the connecting hole 29 to connect the connecting block 28 and the connecting plate 23 together, the plug rod 30 is rotated to adjust the angle of the clamping bolt 31 to be perpendicular to the angle of the connecting hole 29, so that the connecting block 28 is fixed in the mounting groove 27 to keep the second plug 24 stable. When the angle of the clamping bolt 31 is adjusted to be consistent with the angle of the connecting hole 29, the plug rod 30 can be pulled out of the connecting hole 29, so that the second plug 24 can be easily disassembled and replaced when it is damaged.

[0032] As shown in Figure 5 and Figure 6 , one end of the connecting plate 23 is fixedly provided with a fixed plate 32, and the top of the fixed plate 32 is fixedly provided with an electric telescopic rod 33. The output end of the electric telescopic rod 33 is fixedly provided with a clamping tooth 34, and the plug rod 30 is fixedly provided with a third gear 35 engaged with the clamping tooth 34. Through the arrangement of the fixed plate 32, the electric telescopic rod 33, the clamping tooth 34 and the third gear 35, the electric telescopic rod 33 is started to run and expand to drive the clamping tooth 34 to rise. When the clamping tooth 34 is engaged on the third gear 35, the plug rod 30 can be limited, so that the plug rod 30 is not loosened from the inside of the connecting hole 29 by mistake. When the electric telescopic rod 33 is started to shrink, the clamping tooth 34 is separated from the third gear 35, so that the plug rod 30 can be normally rotated.

[0033] In this embodiment, as shown in Figures 1-6 , the working process of the heat exchange pipe box pressing and leaking tool provided in this embodiment is as follows:

[0034] When the heat exchange pipe box body 2 carries out the leakage test, first, the heat exchange pipe box body 2 is placed on the plurality of support frames 6 to keep stable, then the driving motor 7 is started to drive the first gear 11 to rotate, since the connection relationship between the first gear 11 and the second gear 12, therefore the first gear 11 rotates to drive the second gear 12 to rotate, and the transmission block 9 on the lead screw 8 can be driven to move on the lead screw 8 under the drive of the second gear 12, when the transmission block 9 descends, the clamping frame 10 can be driven to adhere to the upper side of the heat exchange pipe box body 2 and fix and clamp the heat exchange pipe box body 2 under the cooperation of the support frame 6, when the transmission block 9 ascends, the clamping frame 10 can be driven to separate from the heat exchange pipe box body 2, so that the heat exchange pipe box body 2 after the test can be taken down, the test of the heat exchange pipe box body 2 can be completed.

[0035] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the forms disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application conceived herein, by the above teaching or related technical or knowledge. The modification and change made by the person skilled in the art without departing from the spirit and scope of the present application should be within the protection scope of the claims attached to the present application.

Claims

1. A heat exchange tube box pressing and leaking device, comprising a base (1) and a heat exchange tube box body (2), a fluid inlet (3) and a fluid outlet (4) are respectively arranged on the heat exchange tube box body (2), characterized in that: The base (1) is provided with clamping structure (5), clamping structure (5) includes a plurality of support frame (6) which is connected with the heat exchange pipe box body (2) and is fixedly installed on the top of the base (1), a plurality of drive motors (7) are fixedly installed on the base (1), one side of the drive motor (7) is movably installed with a lead screw (8) connected with the base (1), the lead screw (8) is provided with a transmission block (9), one end of the transmission block (9) is fixedly installed with a clamping frame (10) connected with the heat exchange pipe box body (2), the output end of the drive motor (7) is fixedly installed with a first gear (11), the lead screw (8) is fixedly installed with a second gear (12) engaged with the first gear (11).

2. The heat exchange tube box pressing and leaking device according to claim 1, characterized in that: The outer side of the drive motor (7) is fixedly installed with a protective shell (13), a plurality of heat dissipation holes (14) are formed in the protective shell (13), and a maintenance cover plate (15) is arranged at one end of the protective shell (13).

3. The heat exchange tube box pressing and leaking device according to claim 2, characterized in that: The inner side of the maintenance cover plate (15) is fixedly installed with a first magnetic ring (16), and the protective shell (13) is fixedly installed with a second magnetic ring (17) magnetically connected with the first magnetic ring (16).

4. The heat exchange tube box pressing and leaking device according to claim 1, characterized in that: One end of the base (1) is fixedly installed with a first support seat (18), the first support seat (18) is fixedly installed with a first air cylinder (19), the output end of the first air cylinder (19) is provided with a first plug (20) connected with the fluid inlet (3), the other end of the base (1) is fixedly installed with a second support seat (21), the top of the second support seat (21) is fixedly installed with a second air cylinder (22), the output end of the second air cylinder (22) is fixedly installed with a connecting plate (23), one side of the connecting plate (23) is installed with a second plug (24).

5. The heat exchange tube box pressing and leaking device according to claim 4, characterized in that: The second support seat (21) is provided with a limiting hole (25), and the limiting hole (25) is movably installed with a stabilizing rod (26) connected with the connecting plate (23).

6. The heat exchange tube box pressing and leaking device according to claim 5, characterized in that: One side of the connecting plate (23) is provided with a mounting groove (27), and the mounting groove (27) is installed with a connecting block (28) connected with the second plug (24), and the connecting plate (23) and the connecting block (28) are both provided with a connecting hole (29), and the connecting hole (29) is movably installed with a plug rod (30), and one end of the plug rod (30) is fixedly installed with a clamping bolt (31).

7. The heat exchange tube box pressing and leaking device according to claim 6, characterized in that: One end of the connecting plate (23) is fixedly installed with a fixed plate (32), the top of the fixed plate (32) is fixedly installed with an electric telescopic rod (33), the output end of the electric telescopic rod (33) is fixedly installed with a clamping tooth (34), and the plug rod (30) is fixedly installed with a third gear (35) engaged with the clamping tooth (34).

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