CN211717724U - Air cooler tube bundle leakage detection device - Google Patents
Air cooler tube bundle leakage detection device Download PDFInfo
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- CN211717724U CN211717724U CN202020606756.1U CN202020606756U CN211717724U CN 211717724 U CN211717724 U CN 211717724U CN 202020606756 U CN202020606756 U CN 202020606756U CN 211717724 U CN211717724 U CN 211717724U
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Abstract
The utility model discloses an air cooler tube bundle leak detection device, which comprises a plug (100), a connecting mechanism, a driving mechanism and an air source (400); a plug (100) is connected to the connection mechanism and configured to be insertable into a heat exchange tube (600) of an air cooler; the connection mechanism is configured to have a connected state in which the plug (100) is restricted from being detached from the heat exchange tube (600) and a released state in which the plug (100) is allowed to be detached from the heat exchange tube (600); a drive mechanism configured to be able to drive the connection mechanism to switch between the connection state and the release state; the gas source (400) is in communication with the plug (100) to provide gas into the heat exchange tube (600) through the plug (100). The utility model discloses an air cooler tube bank leak hunting device can shorten the leak hunting time greatly, improves the leak hunting efficiency and the degree of accuracy.
Description
Technical Field
The utility model relates to an air cooler technical field specifically relates to an air cooler tube bank leak hunting device.
Background
In the working process of the air cooler, the pipe bundle of the air cooler may have leakage, once the leakage occurs, the air cooler needs to be shut down and cut off, then leakage detection and leakage stoppage are carried out, great pressure is brought to the production process, furthermore, if the process medium is hydrocarbon or hydrocarbon-containing substances, a great deal of time is consumed for cutting, isolating, replacing, blowing, leakage detection and leakage stoppage treatment, stable operation of the device is greatly influenced, if the process medium is water, if the leakage occurs during winter, particularly in the north, the temperature is low in winter, the freezing and blockage of equipment is easily caused, even the freezing and cracking accident of the equipment occurs, and the production is seriously influenced.
At present, the air cooler generally adopts the following leakage detection methods: firstly, the integral air charging pressure of the tube bundle is judged by visual inspection and listening, and the method is suitable for leakage detection of the tube bundle in the row 1 (from bottom to top); secondly, the integral air charging pressure of the tube bundle is used for visually observing and sensing the air flow and the leakage direction and source of the medium, and the method is suitable for detecting the leakage of the 1 st and 2 nd row tube bundles; and thirdly, air or steam is filled, a possible leakage range is determined, then the pipe bundle is decompressed and the pipe bundle plug in the initial judgment range is removed, then a leakage checking tool is used for connecting the air or the steam, the pipe bundle plug is inserted into the pipe with the plug removed one by one, the other end of the pipe bundle plug is blocked, and leakage checking personnel is matched to judge whether the pressurized pipe leaks in the air box at the bottom of the pipe bundle through a leakage sound source. The leakage detection method for the tube bundle of the air cooler needs a lot of time, and the workload of personnel and the maintenance cost of equipment are increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the problem that prior art exists, providing an air cooler tube bank leak hunting device, this air cooler tube bank leak hunting device can shorten the leak hunting time greatly, improves the leak hunting efficiency and the degree of accuracy.
In order to achieve the purpose, the utility model provides an air cooler tube bundle leakage detection device, which comprises a plug, a connecting mechanism, a driving mechanism and an air source; the plug is connected to the connecting mechanism and configured to be inserted into a heat exchange tube of an air cooler; the connection mechanism is configured to have a connected state in which the plug is restricted from being detached from the heat exchange tube and a released state in which the plug is allowed to be detached from the heat exchange tube; the drive mechanism is configured to be able to drive the connection mechanism to switch between the connection state and the release state; the gas source is in communication with the plug to provide gas into the heat exchange tube through the plug.
Optionally, the connection mechanism includes an opening member disposed coaxially with the plug, the opening member being configured to: the heat exchanger can extend into a pipe box hole of an air cooler coaxial with the heat exchange pipe so as to be capable of being abutted against the inner wall of the pipe box hole in the connection state and being capable of being separated from the inner wall of the pipe box hole in the release state.
Optionally, the opening and closing element includes a plurality of spring pieces arranged along a circumferential direction of the plug, and the plurality of spring pieces are configured to: is movable radially outwardly of the plug to abut against the inner wall of the pipe box hole under drive of the drive mechanism, and is movable radially inwardly of the plug to disengage from the inner wall of the pipe box hole under drive of the drive mechanism.
Optionally, the driving mechanism comprises a housing and a push rod; the shell is of a cylindrical structure, one end of the shell is open, the push rod is movably arranged in the shell along the axial direction of the shell, and the plug is fixedly connected with the push rod; one end of the elastic sheet is fixedly connected with the push rod and is positioned in the shell, the other end of the elastic sheet is a free end and extends out of the shell, the elastic sheet is in contact with the open part of the shell so as to control the free end to be abutted against the inner wall of the pipe box hole when the push rod is close to the heat exchange pipe, and the free end is controlled to be separated from the inner wall of the pipe box hole when the push rod is far away from the heat exchange pipe.
Optionally, the drive mechanism comprises a spring; the heat exchange tube is characterized in that a first step part is arranged in the shell, a second step part is arranged on the push rod, the spring is arranged between the first step part and the second step part and can be compressed when the push rod is far away from the heat exchange tube, and the spring can provide elasticity towards the heat exchange tube for the push rod.
Optionally, the drive mechanism comprises a handle; the end of the shell opposite to the opening is provided with a through hole, one end of the push rod far away from the plug is a driving end, the driving end extends out of the shell through the through hole, and the handle is connected with the driving end.
Optionally, one end of the handle is a pressing end, and the other end of the handle is provided with a sliding block, and the handle is provided with a hinge point so that the pressing end and the sliding block can rotate around the hinge end; the driving end is provided with a sliding groove, the sliding groove is arranged along the radial direction of the push rod, and the sliding block of the handle is arranged in the sliding groove in a sliding mode.
Optionally, the driving mechanism includes an end cover, the end cover is connected to the housing and covers the driving end, a support is disposed on the end cover, and the handle is hinged to the support.
Optionally, the plug is provided with a first air path, the push rod is provided with a second air path communicated with the first air path, and one end of the air source penetrates through the shell to be communicated with the second air path.
Optionally, the air cooler tube bundle leakage detecting device comprises a pressure gauge, and the pressure gauge is communicated with the second air channel.
Through the technical scheme, when the connecting mechanism is in the release state, the plug is inserted into the heat exchange tube of the air cooler, then the driving mechanism is controlled to switch the connecting mechanism into the connecting state, so that the plug can be prevented from being separated from the heat exchange tube, then the air source is opened to provide pressure gas for the plug, the pressure gas enters the heat exchange tube through the plug, meanwhile, an operator listens to sound of gas leakage in an air box below the air cooler tube bundle, and therefore whether the air cooler tube bundle leaks is judged. The utility model discloses an air cooler tube bank leak hunting device is through the operation actuating mechanism can realize the fastening and the release of plug, convenient operation has shortened the leak hunting time greatly.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the air cooler tube bundle leakage inspection device of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
As shown in fig. 1, the air cooler tube bundle leakage detecting device of the present invention includes a plug 100, a connecting mechanism, a driving mechanism and an air source 400; the plug 100 is connected to the connection mechanism and configured to be inserted into the heat exchange pipe 600 of the air cooler; the connection mechanism is configured to have a connected state in which the plug 100 is restricted from being detached from the heat exchange tube 600 and a released state in which the plug 100 is allowed to be detached from the heat exchange tube 600; the driving mechanism is configured to be capable of driving the connecting mechanism to switch between a connecting state and a releasing state; the gas source 400 communicates with the plug 100 to provide gas into the heat exchange tube 600 through the plug 100.
The utility model discloses in, insert the plug 100 in the heat exchange tube 600 of air cooler when coupling mechanism is the release state, later rethread control actuating mechanism switches coupling mechanism into the connected state, thereby can prevent that plug 100 from breaking away from heat exchange tube 600, then open air supply 400 and provide pressure gas to plug 100 again, pressure gas gets into in the heat exchange tube 600 through plug 100, operating personnel listens the sound that whether has the gas leakage in the bellows of air cooler tube bank below simultaneously, thereby whether the cooperation is judged the tube bank of air cooler and is appeared leaking, after judging, operation actuating mechanism can make coupling mechanism switch into the release state, can extract plug 100 from heat exchange tube 600, carry out the leak hunting detection work of next row of tube bank again. The utility model discloses an air cooler tube bank leak hunting device can realize the fastening and the release of plug 100 through operation actuating mechanism, and convenient operation has shortened the leak hunting time greatly.
It should be understood that the connection mechanism may be designed in various forms as long as it can be switched between the connection state and the release state, for example, the connection mechanism may be a claw, the plug 100 is fixedly connected with the claw, and the claw is made to grasp or release the tube box of the air cooler by operating the driving mechanism, thereby achieving the purpose of limiting or allowing the plug 100 to enter or exit the heat exchange tube 600. In an embodiment of the present invention, the connecting mechanism is designed to: the connection mechanism includes an opening member disposed coaxially with the plug 100, the opening member being configured to: can be inserted into the tube box hole 700 of the air cooler coaxial with the heat exchange tube 600 to be able to abut against the inner wall of the tube box hole 700 in a connected state and to be able to be separated from the inner wall of the tube box hole 700 in a released state. Like this, because opening and shutting piece, plug 100, heat exchange tube 600 and the equal coaxial setting in tube box hole 700, improved the stability that restriction plug 100 breaks away from in the heat exchange tube 600, also increased the holistic structural strength of air cooler tube bank leak hunting device simultaneously, not fragile.
In order to increase the friction between the opening member and the inner wall of the tube box hole 700, the inner wall of the tube box hole 700 may be provided with an anti-slip pattern, thereby increasing the friction and ensuring the reliability of restricting the movement of the plug 100. The utility model discloses an in an embodiment, pipe box hole 700 is equipped with the internal thread, and the internal thread has also improved the frictional force of opening and shutting piece and pipe box hole 700 greatly.
It is further understood that the opening member may be designed in various forms as long as it can be brought into contact with or separated from the inner wall of the tube box hole 700, for example, the opening member may include a base and an air cushion, the driving mechanism may be an inflator, the air cushion is provided on the base, the plug 100 is also fixedly provided on the base, the inflator is communicated with the air cushion through an air tube, the air cushion and the base can freely pass through the tube box hole 700 when the air in the air cushion is not sufficient, that is, the connection mechanism is in a release state at this time, so that the plug 100 fixedly connected to the base can freely enter and exit the heat exchange tube 600, and when the inflator inflates the air cushion, the air cushion expands until contacting with the inner wall of the tube box hole 700, the base is restricted from moving by the frictional force between the air cushion and the inner wall of the tube box hole 700, that is, at this time, the connection mechanism is in a connection state, so that, thereby preventing the plug 100 from being detached from the heat exchange pipe 600. In an embodiment of the present invention, the opening and closing member may include a plurality of elastic pieces 210 disposed along a circumferential direction of the plug 100, and the plurality of elastic pieces 210 are configured as: can move radially outward of the plug 100 to abut the inner wall of the tube box hole 700 by the driving of the driving mechanism, and can move radially inward of the plug 100 to disengage from the inner wall of the tube box hole 700 by the driving of the driving mechanism. Therefore, the movement of the plug 100 is limited by the friction action between the elastic sheet 210 and the inner wall of the tube box hole 700, the structural strength of the opening and closing member is integrally improved, the gripping force between the opening and closing member and the inner wall of the tube box hole 700 is also improved, and the plug 100 can be stably arranged in the heat exchange tube 600.
In the above embodiment, the driving mechanism may be provided in various forms, for example, the driving mechanism may include a ring member coaxially disposed with the plug 100, the ring member being disposed outside the plurality of resilient pieces 210 and being capable of increasing or decreasing an inner diameter thereof, when the inner diameter of the ring member decreases, the ring member may be capable of clamping the plurality of resilient pieces 210 toward the plug 100, that is, moving the plurality of resilient pieces 210 inward in a radial direction of the plug 100 to be separated from an inner wall of the pipe box hole 700, the plug 100 may be freely moved, and when the inner diameter of the ring member increases, the ring member may not apply pressure to the plurality of resilient pieces 210, and the plurality of resilient pieces 210 may move outward in the radial direction of the plug 100 to be abutted against the inner wall of the pipe box hole 700 by its own elastic force to restrict the movement of the plug 100. In one embodiment of the present invention, the driving mechanism includes a housing 310 and a push rod 320; the housing 310 is a cylindrical structure and has an open end, the push rod 320 is movably disposed in the housing 310 along the axial direction of the housing 310, and the plug 100 is fixedly connected with the push rod 320; one end of the spring plate 210 is fixedly connected with the push rod 320 and is positioned in the housing 310, the other end of the spring plate 210 is a free end and extends out of the housing 310, the spring plate 210 is in contact with the open part of the housing 310 to control the free end to abut against the inner wall of the channel hole 700 when the push rod 320 is close to the heat exchange tube 600, and to control the free end to be separated from the inner wall of the channel hole 700 when the push rod 320 is far away from the heat exchange tube 600.
Specifically, in the above embodiment, the number of the elastic sheets 210 is three, one end of each of the three elastic sheets 210 is fixedly disposed at the end of the push rod 320 along the circumferential direction of the plug 100, the other end of each of the three elastic sheets 210 extends out of the opening of the housing 310, and in the initial state of no force, the three elastic sheets 210 are radially outwardly opened along the plug 100. When the push rod 320 moves away from the heat exchange tube 600 (i.e., in a rightward direction in fig. 1), the three resilient pieces 210 move away from the heat exchange tube 600 along with the push rod 320, and the three resilient pieces 210 are simultaneously tightened by the opening of the housing 310 and contract inward in a radial direction of the plug 100, so that the free ends of the resilient pieces 210 are separated from the inner wall of the tube box hole 700, thereby bringing the connection mechanism into a release state, whereas when the push rod 320 moves toward the heat exchange tube 600, the connection mechanism is brought into a connection state.
In order to operate the reciprocating movement of the push rod 320 more laborsavingly, in one embodiment of the present invention, the driving mechanism includes a spring 330; a first step portion is provided in the housing 310, a second step portion is provided on the push rod 320, a spring 330 is provided between the first step portion and the second step portion to be able to be compressed when the push rod 320 is away from the heat exchange tube 600, and the spring 330 is able to provide an elastic force toward the heat exchange tube 600 to the push rod 320.
Specifically, the drive mechanism includes a handle 340; the end of the shell 310 opposite to the opening is provided with a through hole, the end of the push rod 320 far away from the plug 100 is a driving end, the driving end extends out of the shell 310 through the through hole, and the handle 340 is connected with the driving end. That is to say, drive push rod 320 reciprocating motion through handle 340, improved the utility model discloses an air cooler tube bank leak hunting device's operation convenience.
When an operator performs leak detection, if the push rod 320 is driven to reciprocate by pressing of fingers, the labor intensity can be greatly reduced, for this reason, optionally, one end of the handle 340 is a pressing end, the other end is provided with the sliding block 341, and the handle 340 is provided with a hinge point so that the pressing end and the sliding block 341 can rotate around the hinge end; the driving end is provided with a sliding groove 321, the sliding groove 321 is arranged along the radial direction of the push rod 320, and the sliding block 341 of the handle 340 is slidably arranged in the sliding groove 321. As shown in fig. 1, when the pressing end of the handle 340 is pressed counterclockwise, the handle 340 rotates counterclockwise around the hinge point, the sliding block 341 is driven to move rightward, the sliding block 341 moves upward relative to the sliding slot 321 and pushes the sliding slot 321 to move rightward, the push rod 320 moves rightward against the elastic force of the spring 330, the elastic sheet 210 contracts radially inward under the action of the opening of the housing 310, the connection mechanism enters a release state, and conversely, when the pressing force on the handle 340 is removed, the push rod 320 returns under the elastic force of the spring 330.
In addition, the driving mechanism further comprises an end cover 350, the end cover 350 is connected with the housing 310 and covers the driving end, a support 351 is arranged on the end cover 350, and the handle 340 is hinged to the support 351. The cavity of the end cap 350 may be filled with lubricating oil to provide lubrication for the movement of the slider 341 in the sliding slot 321.
Specifically, in an embodiment of the present invention, the plug 100 has a first air path 110, the push rod 320 has a second air path 322 communicated with the first air path 110, and one end of the air source 400 passes through the housing 310 to communicate with the second air path 322.
In order to improve the accuracy of judging that the tube bank reveals the utility model discloses an among the embodiment, air cooler tube bank leak hunting device still includes manometer 500, manometer 500 and second gas circuit 322 intercommunication. That is, after the pressure gas is filled into the heat exchange tube 600, the pressure value of the pressure gauge 500 rises, at this time, the gas source 400 is closed to stop the gas filling, the pressure gauge 500 is observed to see whether the value of the pressure gauge 500 changes, if the value does not change significantly, the tube bundle is not leaked, if the pressure value of the pressure gauge 500 drops, the tube bundle is possible to leak, meanwhile, an operator listens to the leakage sound in the bellows below the tube bundle, and by confirming the two conditions, whether the tube bundle leaks can be correctly judged.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide a solution of the present invention with a plurality of simple modifications to avoid unnecessary repetition, and the present invention is not described separately for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (10)
1. The air cooler tube bundle leakage detection device is characterized by comprising a plug (100), a connecting mechanism, a driving mechanism and an air source (400);
the plug (100) is connected to the connection mechanism and configured to be inserted into a heat exchange tube (600) of an air cooler;
the connection mechanism is configured to have a connected state in which the plug (100) is restricted from being detached from the heat exchange tube (600) and a released state in which the plug (100) is allowed to be detached from the heat exchange tube (600);
the drive mechanism is configured to be able to drive the connection mechanism to switch between the connection state and the release state;
the gas source (400) is in communication with the plug (100) to provide gas into the heat exchange tube (600) through the plug (100).
2. The air cooler tube bundle leak detection device according to claim 1, wherein the connection mechanism includes an opening member disposed coaxially with the plug (100), the opening member configured to: can extend into a tank hole (700) of an air cooler coaxial with the heat exchange tube (600) to be capable of abutting against an inner wall of the tank hole (700) in the connected state and of being capable of disengaging from the inner wall of the tank hole (700) in the released state.
3. The air cooler tube bundle leak detection device according to claim 2, wherein the opening element comprises a plurality of clips (210) disposed along a circumference of the plug (100), the plurality of clips (210) configured to: is movable radially outwardly of the plug (100) to abut an inner wall of the header hole (700) under drive of the drive mechanism, and is movable radially inwardly of the plug (100) to disengage from the inner wall of the header hole (700) under drive of the drive mechanism.
4. The air cooler tube bundle leak detection device according to claim 3, wherein the drive mechanism includes a housing (310) and a push rod (320); the shell (310) is of a cylindrical structure, one end of the shell is open, the push rod (320) is movably arranged in the shell (310) along the axial direction of the shell (310), and the plug (100) is fixedly connected with the push rod (320);
one end of the elastic sheet (210) is fixedly connected with the push rod (320) and is positioned in the shell (310), the other end of the elastic sheet (210) is a free end and extends out of the shell (310), the elastic sheet (210) is in contact with an opening part of the shell (310) so that the free end is controlled to be abutted against the inner wall of the pipe box hole (700) when the push rod (320) is close to the heat exchange pipe (600), and the free end is controlled to be separated from the inner wall of the pipe box hole (700) when the push rod (320) is far away from the heat exchange pipe (600).
5. The air cooler tube bundle leak detection device according to claim 4, wherein the drive mechanism includes a spring (330); the spring is characterized in that a first step portion is arranged in the shell (310), a second step portion is arranged on the push rod (320), the spring (330) is arranged between the first step portion and the second step portion and can be compressed when the push rod (320) is far away from an opening of the shell (310), and the spring (330) can provide elastic force opposite to the moving direction of the push rod (320) for the push rod (320).
6. The air cooler tube bundle leak detection device according to claim 5, wherein the drive mechanism includes a handle (340); the end, opposite to the opening, of the shell (310) is provided with a through hole, the end, far away from the plug (100), of the push rod (320) is a driving end, the driving end extends out of the shell (310) through the through hole, and the handle (340) is connected with the driving end.
7. The air cooler tube bundle leakage inspection device according to claim 6, wherein one end of the handle (340) is a pressing end, the other end is provided with a sliding block (341), the handle (340) is provided with a hinge point so that the pressing end and the sliding block (341) can rotate around the hinge end;
the driving end is provided with a sliding groove (321), the sliding groove (321) is arranged along the radial direction of the push rod (320), and a sliding block (341) of the handle (340) is arranged in the sliding groove (321) in a sliding manner.
8. The air cooler tube bundle leak detection device according to claim 7, wherein the driving mechanism comprises an end cap (350), the end cap (350) is connected with the shell (310) and covers the driving end, a support seat (351) is arranged on the end cap (350), and the handle (340) is hinged to the support seat (351).
9. The air cooler tube bundle leak detection device according to any one of claims 4-8, wherein the plug (100) has a first air passage (110), the push rod (320) has a second air passage (322) in communication with the first air passage (110), and one end of the air source (400) passes through the shell (310) to be in communication with the second air passage (322).
10. The air cooler tube bundle leak detection device according to claim 9, comprising a pressure gauge (500), wherein the pressure gauge (500) is in communication with the second gas path (322).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020606756.1U CN211717724U (en) | 2020-04-21 | 2020-04-21 | Air cooler tube bundle leakage detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020606756.1U CN211717724U (en) | 2020-04-21 | 2020-04-21 | Air cooler tube bundle leakage detection device |
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| CN211717724U true CN211717724U (en) | 2020-10-20 |
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| CN202020606756.1U Active CN211717724U (en) | 2020-04-21 | 2020-04-21 | Air cooler tube bundle leakage detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117232754A (en) * | 2023-11-14 | 2023-12-15 | 江苏格兰环境科技有限公司 | Air cooler tube bank is examined pressure testing device separately |
-
2020
- 2020-04-21 CN CN202020606756.1U patent/CN211717724U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117232754A (en) * | 2023-11-14 | 2023-12-15 | 江苏格兰环境科技有限公司 | Air cooler tube bank is examined pressure testing device separately |
| CN117232754B (en) * | 2023-11-14 | 2024-01-30 | 江苏格兰环境科技有限公司 | Air cooler tube bank is examined pressure testing device separately |
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Address after: Block C, Shenhua building, 16 ande Road, Dongcheng District, Beijing, 100011 Patentee after: CHINA SHENHUA COAL TO LIQUID AND CHEMICAL Co.,Ltd. Patentee after: Guoneng Xinjiang Chemical Co., Ltd Address before: Block C, Shenhua building, 16 ande Road, Dongcheng District, Beijing, 100011 Patentee before: CHINA SHENHUA COAL TO LIQUID AND CHEMICAL Co.,Ltd. Patentee before: Shenhua Xinjiang Chemical Co., Ltd |
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| CP01 | Change in the name or title of a patent holder |