Portable leakage detection device for tube bundle cooler

Abstract

The utility model belongs to the technical field of leakage detection devices, and particularly relates to a portable tube bundle cooler leakage detection device which comprises a connecting tube, a first plug and a second plug. An internal thread connected with the first plug is arranged at one end of the connecting pipe, an external thread connected with the second plug is arranged at the other end of the connecting pipe, the other end of the connecting pipe can penetrate through the second plug to extend out and is communicated with an external air source, a communicating hole is formed in the connecting pipe, and the external air source can be sprayed out through the communicating hole; the first plug is sleeved with a sealing gasket used for sealing, and a hexagonal prism is fixed to the end of the first plug. A sealing ring for sealing is fixed on the second plug, and the end part of the second plug is fixedly connected with a nut; the connecting pipe is a telescopic pipe or can be bent, and can retract or be bent and coiled up in the using or carrying process, so that the occupied space can be reduced, and storage, taking and carrying are convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of leak detection devices, and in particular relates to a portable leak detection device for a tube bundle cooler. Background Art

[0002] Air cooler leak detection is an important process that requires professional skills. Generally, the pressure test method is mainly used, which is to fill the air cooler system with gas or liquid and test it at a certain pressure to find the leak.

[0003] When testing the air cooler for leaks, the appropriate method should be selected according to the specific situation, and the safety and accuracy of the operation should be ensured. At the same time, any leaks found should be repaired and maintained in a timely manner to ensure the normal operation and service life of the air cooler.

[0004] For example, the patent application No. 200520118661.0 discloses a pipeline leakage detection device; the inverted cone expansion tube at the front end of the water injection pipe is inserted into the pipeline to be tested, and the rubber tube is compressed by rotating the fastening nut to seal the opening of the pipeline to be tested, and the water inlet end of the water injection pipe is connected to the pressure machine through a hose to pressurize. After the pressure is pressed, after a period of rest, if the pressure drops, it means that the pipeline is leaking.

[0005] Since the pipe of the air cooler has a certain length, the above-mentioned leak detection device will also have a corresponding length; therefore, there are certain inconveniences in the process of taking and storing. Utility Model Content

[0006] In view of the above technical problems, the utility model provides a portable tube bundle cooler leak detection device, the main body of which can be extended or bent so as to facilitate storage and carrying.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A portable tube bundle cooler leak detection device, characterized in that it comprises a connecting pipe, a first plug and a second plug; one end of the connecting pipe is provided with an internal thread connected to the first plug, the other end of the connecting pipe is provided with an external thread connected to the second plug, the other end of the connecting pipe can extend through the second plug and be connected to an external air source, the connecting pipe is provided with a connecting hole, and the external air source can be sprayed out through the connecting hole; a sealing gasket for sealing is sleeved on the first plug, and a hexagonal prism is fixed to the end of the first plug; a sealing ring for sealing is fixed to the second plug, and a nut is fixedly connected to the end of the second plug; the connecting pipe is a telescopic tube or can be bent.

[0009] The sealing gasket is provided with a conical protrusion at one end.

[0010] The connecting tube is a telescopic tube, and the interior of the connecting tube is hollow.

[0011] There are a plurality of connecting pipes, and the connecting pipes are connected end to end in sequence.

[0012] The connecting pipe is bendable and comprises a first pipe body, a steel wire rope and a second pipe body, wherein the first pipe body, the steel wire rope and the second pipe body are fixedly connected in sequence; the internal thread is arranged on the first pipe body; the connecting hole and the external thread are arranged on the second pipe body.

[0013] The steel wire ropes are provided in a plurality and are connected end to end in sequence.

[0014] It also includes a protective ring, which is fixed on one end of the connecting pipe; a roller is rotatably connected to the protective ring, and at least one roller is provided and is evenly distributed along the circumference of the protective ring.

[0015] The outer jacket of the steel wire rope is provided with a protective cover.

[0016] The protective sleeve is a silicone tube.

[0017] The second plug is fixedly connected with a buckle which is engaged with the first plug.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The first plug and the second plug can be used to seal the two ends of the air cooler pipe respectively, and leak detection can be performed by injecting an external gas source. At the same time, the connecting pipe is a telescopic pipe or a bendable structure, which can be retracted or bent and coiled during use or carrying, thereby reducing the space occupied and facilitating storage and carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the utility model in one direction;

[0021] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the utility model in another direction;

[0022] Figure 3 It is a schematic diagram of the use state of the utility model;

[0023] Figure 4 This is a structural schematic diagram of the connecting pipe of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present utility model in one direction;

[0025] Figure 6 yes Figure 5 A partial enlarged view of the middle A;

[0026] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of the utility model in another direction;

[0027] Figure 8 This is a schematic diagram of a multiple steel wire rope connection structure of the utility model;

[0028] Among them: 1 is a connecting pipe, 2 is a first plug, 3 is a second plug, 4 is an internal thread, 5 is an external thread, 6 is a connecting hole, 7 is a sealing gasket, 8 is a hexagonal prism, 9 is a sealing ring, 10 is a nut, 11 is a raised portion, 12 is a first tube body, 13 is a wire rope, 14 is a second tube body, 15 is a protective ring, 16 is a roller, 17 is a protective cover, 18 is a buckle, 19 is a pressure gauge, 20 is a needle valve, 21 is an external air source, and 22 is an air cooler pipeline. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1-3 As shown, a portable tube bundle cooler leak detection device includes a connecting pipe 1, a first plug 2 and a second plug 3; one end of the connecting pipe 1 is provided with an internal thread 4 connected to the first plug 2, the other end of the connecting pipe 1 is provided with an external thread 5 connected to the second plug 3, the other end of the connecting pipe 1 can extend through the second plug 3 and be connected to an external air source 21, a connecting hole 6 is provided on the connecting pipe 1, and the external air source 21 can be sprayed out through the connecting hole 6; specifically; the other end of the connecting pipe 1 is connected to the external air source 21 through a pressure gauge 19 and an isolation needle valve 20.

[0031] A sealing gasket 7 for sealing is sleeved on the first plug 2, and a hexagonal prism 8 is fixed to the end of the first plug 2, and the first plug 2 is tightened by a wrench and the hexagonal prism 8. A sealing ring 9 for sealing is fixed on the second plug 3, and a nut 10 is fixedly connected to the end of the second plug 3; similarly, the second plug 3 is tightened by a wrench and the nut 10. The above-mentioned connecting pipe 1 is a telescopic pipe or can be bent.

[0032] The specific usage is as follows: the second plug 3 is threadedly connected to the other end of the connecting pipe 1; then one end of the connecting pipe 1 is inserted from the left end of the air cooler pipe; then the first plug 2 is threadedly connected to one end of the connecting pipe 1 from the left end of the air cooler pipe. Finally, by tightening the first plug 2 or the second plug 3, the sealing gasket 7 on the first plug 2 fits with the outer surface of the left end of the air cooler pipe, and the sealing ring 9 on the second plug 3 fits with the outer surface of the right end of the air cooler pipe; that is, both ends of the air cooler pipe are sealed.

[0033] The external gas source 21 (pressure) enters from one end of the connecting pipe 1 through the needle valve and the pressure gauge 19 in sequence, and flows into the air cooler pipeline to be tested for leakage through the connecting hole 6 to test for side leakage.

[0034] Furthermore, the sizes of the first plug 2 and the second plug 3 can be designed accordingly according to the diameter of the air cooler pipe (tube bundle); and the first plug 2 and the second plug 3 of various specifications and sizes can be provided.

[0035] Furthermore, the sealing gasket 7 is provided with a conical protrusion 11 at one end of the front sealing gasket 7, and the protrusion can extend into the air cooler pipe, so as to better fit and improve the sealing effect.

[0036] Furthermore, when the connecting tube 1 is a telescopic tube, its interior is hollow; specifically, a common telescopic tube structure can be adopted. When leak detection is performed, the connecting tube 1 can be extended; when stored or carried, it can be retracted. Specifically: it includes an inner tube and an outer tube, the inner tube and the outer tube are slidably connected, the front end of the outer tube is provided with a constriction, and the inner tube is provided with a protrusion, and the protrusion cooperates with the constriction to prevent the inner tube from being pulled out of the outer tube.

[0037] Further, if Figure 4 As shown, the above-mentioned connecting pipes 1 are provided with a plurality of them, and the plurality of connecting pipes 1 are connected end to end in sequence, and specifically can be connected in a threaded manner, and then a corresponding number of connecting pipes 1 can be connected according to the length of the air cooler pipeline.

[0038] Meanwhile, the connecting tube 1 can also be a telescopic tube, that is, a plurality of telescopic tubes are sequentially connected by threads; therefore, corresponding internal and external threads need to be provided at both ends of the telescopic tube to realize the threaded connection between the telescopic tubes.

[0039] The connecting pipe 1 in this embodiment can be bent into a structure such as Figure 5-7 As shown, it includes a first tube body 12, a steel wire rope 13 and a second tube body 14, which are fixedly connected in sequence; an internal thread 4 is arranged on the first tube body 12; and a connecting hole 6 and an external thread 5 are arranged on the second tube body 14.

[0040] When in use, the second plug 3 is threadedly connected to the second tube 14; then the first tube 12 and the wire rope 13 are inserted from the left end of the air cooler pipe; then the first plug 2 is threadedly connected to the first tube 12 from the left end of the air cooler pipe. Finally, by tightening the first plug 2 or the second plug 3, the sealing gasket 7 on the first plug 2 fits with the outer surface of the left end of the air cooler pipe, and the sealing ring 9 on the second plug 3 fits with the outer surface of the right end of the air cooler pipe.

[0041] After use or when carrying, the steel wire rope 13 in the middle is bent or coiled up and fixed with a bandage or the like. The overall space occupied by the coiled or bent steel wire rope is small, and the steel wire rope 13 is convenient to store or carry.

[0042] Furthermore, during the insertion process, one end of the connecting pipe 1 may scratch the inner surface of the air cooler pipe. Therefore, a protective ring 15 is also provided, which is fixed to one end of the connecting pipe 1 (on the first pipe body 12); a roller 16 is rotatably connected to the protective ring 15, and the roller 16 is at least one and evenly distributed along the circumference of the protective ring 15. That is, the protective ring 15 supports one end of the connecting pipe 1 to avoid contact with the inner wall of the air cooler pipe, and the roller 16 can reduce the resistance during the movement.

[0043] Furthermore, in order to prevent the outer surface of the steel wire rope 13 from scratching the inner wall of the air cooler pipe, a protective sleeve 17 is provided on the outer shell of the steel wire rope 13 .

[0044] Further, if Figure 8 As shown, a plurality of steel wire ropes 13 are provided, and the plurality of steel wire ropes 13 are connected end to end in sequence. Specifically, the connection can be made by threading, and the two ends of each steel wire rope 13 are respectively provided with corresponding internal and external threads; and then a corresponding number of steel wire ropes 13 can be connected according to the length of the air cooler pipe. At the same time, the steel wire rope 13 can be welded with a nut at one end and a stud at the other end, so that the two ends thereof are formed with internal and external threads.

[0045] Furthermore, the protective cover 17 is a silicone tube.

[0046] Furthermore, the steel wire rope 13 can be fixed by means of a binding after being bent or coiled; of course, it can also be fixed in the following manner: that is, after the steel wire rope 13 is bent or coiled, the buckle 18 fixedly connected to the first plug 2 and the second plug 3 can be clamped.

[0047] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the protection scope of the present invention.

Claims

1. A portable tube bundle cooler leak detection device, characterized in that: The invention comprises a connecting pipe (1), a first plug (2) and a second plug (3); one end of the connecting pipe (1) is provided with an internal thread (4) connected to the first plug (2), the other end of the connecting pipe (1) is provided with an external thread (5) connected to the second plug (3), the other end of the connecting pipe (1) can extend through the second plug (3) and be connected to an external air source (21), the connecting pipe (1) is provided with a connecting hole (6), and the external air source (21) can be sprayed out through the connecting hole (6); a sealing gasket (7) for sealing is sleeved on the first plug (2), and a hexagonal prism (8) is fixed to the end of the first plug (2); a sealing ring (9) for sealing is fixed to the second plug (3), and a nut (10) is fixedly connected to the end of the second plug (3); the connecting pipe (1) is a telescopic tube or can be bent.

2. A portable tube bundle cooler leak detection device according to claim 1, characterized in that: The sealing gasket (7) is provided with a conical protrusion (11) at one end of the sealing gasket (7).

3. A portable tube bundle cooler leak detection device according to claim 1, characterized in that: The connecting tube (1) is a telescopic tube, the interior of which is hollow.

4. A portable tube bundle cooler leak detection device according to claim 1 or 3, characterized in that: A plurality of connecting pipes (1) are provided, and the plurality of connecting pipes (1) are connected end to end in sequence.

5. The portable tube bundle cooler leak detection device according to claim 1, characterized in that: The connecting pipe (1) is bendable and comprises a first pipe body (12), a steel wire rope (13) and a second pipe body (14), wherein the first pipe body (12), the steel wire rope (13) and the second pipe body (14) are fixedly connected in sequence; the internal thread (4) is arranged on the first pipe body (12); and the connecting hole (6) and the external thread (5) are arranged on the second pipe body (14).

6. A portable tube bundle cooler leak detection device according to claim 5, characterized in that: A plurality of the steel wire ropes (13) are provided, and the plurality of steel wire ropes (13) are connected end to end in sequence.

7. A portable tube bundle cooler leak detection device according to claim 1 or 5, characterized in that: It also comprises a protective ring (15), the protective ring (15) being fixed to one end of the connecting pipe (1); a roller (16) being rotatably connected to the protective ring (15), the roller (16) being provided with at least one and evenly distributed along the circumference of the protective ring (15).

8. A portable tube bundle cooler leak detection device according to claim 5, characterized in that: The outer shell of the steel wire rope (13) is provided with a protective sleeve (17).

9. A portable tube bundle cooler leak detection device according to claim 8, characterized in that: The protective sleeve (17) is a silicone tube.

10. A portable tube bundle cooler leak detection device according to claim 5, characterized in that: The second plug (3) is fixedly connected with a buckle (18) which is engaged with the first plug (2).

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