CN214040539U

CN214040539U - Heat exchange tube leak detection device

Info

Publication number: CN214040539U
Application number: CN202023117333.2U
Authority: CN
Inventors: 庄林; 刘斌; 王博
Original assignee: SHAANXI WEIHE COAL CHEMICAL GROUP CO Ltd
Current assignee: SHAANXI WEIHE COAL CHEMICAL GROUP CO Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-08-24
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses a heat exchange tube leakage detection device, including the pipe group that leaks hunting, the pipe group that leaks hunting includes first pipeline, second pipeline and punching press pipeline, first pipeline and second pipeline all set up in the both ends of waiting to leak hunting the heat exchange tube with the detachable mode, and wherein, first pipeline is provided with the exhaust shutoff, and the second pipeline is provided with the punching press shutoff, and first pipeline still is provided with discharge valve, punching press pipeline turn-on connection second pipeline, and the pipe group that leaks hunting is provided with pressure measurement piece and punching press valves to the punching press pipeline correspondence, and the punching press pipeline disposes drainage component. The utility model relates to a heat exchange tube leak hunting device through the shutoff of auto-lock self sealss, inspects the leakproofness of heat exchange tube, can improve the heat exchange tube accuracy rate of looking for leaks to a certain extent, has also reduced the out-of-service maintenance number of times of heat exchanger simultaneously, has better practicality.

Description

Heat exchange tube leak detection device

Technical Field

The utility model belongs to the technical field of the heat exchanger auxiliary assembly, concretely relates to heat exchange tube leak hunting device.

Background

The heat exchanger is very important equipment in chemical equipment, and whether the heat exchanger normally operates directly influences whether the equipment stops production or not; and the heat exchange tube is the most important and life-determining component in the heat exchanger equipment. The heat exchangers are of various types, and mainly comprise a U-shaped tubular heat exchanger, a floating head heat exchanger and the like. Because the medium of part of the heat exchangers has the characteristics of high corrosivity or solid content or large pressure difference, the low-pressure medium filled into the shell of the heat exchanger cannot accurately find the heat exchange tube with cracks or seriously corroded and thinned, so that the heat exchanger begins to leak after being put into service or shortly, and the operation of the device is influenced to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a heat exchange tube leak hunting device has solved the lower and too frequent problem of the maintenance number of times of stopping use of heat exchanger of the rate of accuracy that present heat exchange tube leak hunting.

The technical proposal adopted by the utility model is that,

the utility model provides a heat exchange tube leak hunting device, including the pipe group that leaks hunting, the pipe group that leaks hunting includes first pipeline, second pipeline and punching press pipeline, first pipeline and second pipeline all set up in the both ends of waiting to leak hunting heat exchange tube with the detachable mode, wherein, first pipeline is provided with the exhaust shutoff, the second pipeline is provided with the punching press shutoff, first pipeline still is provided with discharge valve, punching press pipeline turn-on connection second pipeline, the punching press pipeline corresponds the pipe group that leaks hunting and is provided with pressure finding spare and punching press valves, the punching press pipeline disposes drainage components.

The utility model is also characterized in that,

the exhaust plugging and the punching plugging are respectively provided with a detachable plugging component corresponding to the heat exchange tube to be subjected to leakage detection, and each plugging component comprises a gasket, a rubber sealing ring, a screw rod with an inner through hole and a nut which are sequentially arranged along the axial direction of the leakage detection tube group.

The second pipeline is communicated with the stamping pipeline through a three-way pipe, wherein a first through of the three-way pipe is connected with the second pipeline, a second through of the three-way pipe is connected with the stamping pipeline, and a third barrel of the three-way pipe is connected with the pressure measuring piece.

The punching press valves include a punching valve and a plurality of stop valves which are sequentially arranged on a punching press pipeline, the punching valve is arranged at a position far away from the pressure measuring piece, and the drainage assembly is arranged between the punching valve and the stop valve (6) close to the punching valve.

The shut-off valve sets up to two.

The drainage assembly comprises a drainage pipe communicated with the stamping pipeline, and the drainage pipe is provided with a drainage valve.

The pressure measuring and pressing piece is a pressure gauge.

The utility model has the advantages that: the utility model relates to a heat exchange tube leak hunting device through two auto-lock self sealss structures of taking the hole, comes to carry out the leak hunting to the heat exchange tube, and this device can improve the heat exchange tube leak hunting the rate of accuracy, and reduce the out-of-service maintenance number of times of heat exchanger, has improved work efficiency.

Drawings

Fig. 1 is a schematic structural view of a heat exchange tube leak detector of the present invention;

fig. 2 is the utility model discloses a plugging component's among heat exchange tube leak hunting device structural schematic.

In the figure, 1, an exhaust valve, 2, an exhaust plug, 3, a heat exchange tube, 4, an inflation plug, 5, a pressure gauge, 6, a stop valve, 7, a pressure charging valve, 8, a drain valve, 9, a gasket, 10, a rubber sealing ring, 11, a screw, 12, a nut, 13, a first pipeline, 14, a second pipeline, 15, a stamping pipeline and 16, a drain pipe are arranged.

Detailed Description

The following describes the leakage detecting device of the heat exchange tube in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 and fig. 2, a heat exchange tube leakage detection device comprises a leakage detection tube set, the leakage detection tube set comprises a first pipeline 13, a second pipeline 14 and a stamping pipeline 15, the first pipeline 13 and the second pipeline 14 are detachably arranged at two ends of a heat exchange tube 3 to be detected, wherein the first pipeline 13 is provided with an exhaust plug 2, the second pipeline 14 is provided with a stamping plug 4, the first pipeline 13 is further provided with an exhaust valve 1, the stamping pipeline 15 is in conduction connection with the second pipeline 14, the stamping pipeline 15 is provided with a pressure measuring piece and a stamping valve group corresponding to the leakage detection tube set, and the stamping pipeline 15 is provided with a drainage component.

Further, the exhaust plug 2 and the punching plug 4 are both provided with detachable plug components corresponding to the heat exchange tube 3 to be subjected to leakage detection, and each plug component comprises a gasket 9, a rubber sealing ring 10, a screw rod 12 with an inner through hole and a nut 11 which are sequentially arranged along the axial direction of the leakage detection tube group.

The utility model relates to a heat exchange tube leakage detection device extrudees packing ring 9 through nut 11's pretightning force, makes rubber seal 10 and the inner wall of waiting to check leakage heat exchange tube 3 produce axial frictional force and radial tension force. When the pressure in the heat exchange tube is increased, the axial friction force prevents the plug from being separated from the heat exchange tube; the radial expansion pressure ensures that the medium with pressure does not leak.

Further, the second pipeline 14 is communicated with the stamping pipeline 15 through a three-way pipe, wherein a first through of the three-way pipe is connected with the second pipeline 14, a second through of the three-way pipe is connected with the stamping pipeline 15, and a third barrel is connected with the pressure measuring piece.

Further, the punching valve group comprises a punching valve 7 and a plurality of cut-off valves 6 which are sequentially arranged on a punching pipeline 15, the punching valve 7 is arranged at a position far away from the pressure measuring piece, and the drainage assembly is arranged between the punching valve 7 and the cut-off valves 6 close to the punching valve 7.

Further, the shut-off valve 6 is provided in two.

Further, the drain assembly comprises a drain pipe 16 in communication with the press line 15, the drain pipe 16 being provided with a drain valve 8.

Further, the pressure measuring and pressing piece is a pressure gauge 5.

The utility model relates to a heat exchange tube leak hunting device, manometer 5 show wait to look for the pressure in the heat exchange tube 3 that leaks when pressurizing. Opening a stamping valve 7, pressurizing the heat exchange tube 3 to be subjected to leakage detection, and raising the indication of a pressure gauge 5; closing the stamping valve 7, wherein the indication of the pressure gauge 5 does not rise and fall any more, which indicates that the heat exchange tube 3 to be checked for leakage is not leaked; if the indication of the pressure gauge 5 is lowered, this indicates that there is a leak in the heat exchange tube 3 to be checked.

The utility model relates to a heat exchange tube leak hunting device's working process does: the integrity of each part is checked, after the checking is finished, the device is connected with the heat exchange tube 3 to be checked for leakage and plugged, the exhaust valve 1 is closed, the stop valve 6 is opened, the pressurizing valve 7 is closed, the drain valve 8 is closed, after the whole installation is finished, the pressurizing valve 7 is opened, and the pressure is pressurized into the heat exchange tube 3 to be checked for leakage through the pressurizing plugging; when the pressure of the pressure gauge 5 rises to a set pressure, observing whether the plugging part leaks, then closing the pressure charging valve 7, observing the pressure gauge 5, and if the pressure drops, indicating that the heat exchange tube 3 to be tested leaks; the heat exchange tube is plugged by a plug, and if the numerical value displayed by the pressure gauge 5 is basically unchanged, the heat exchange tube 3 to be checked for leakage is well sealed.

The utility model relates to a heat exchange tube leak hunting device through the shutoff of auto-lock self sealss, inspects the leakproofness of heat exchange tube, can improve the heat exchange tube accuracy rate of looking for leaks to a certain extent, has also reduced the out-of-service maintenance number of times of heat exchanger simultaneously, has better practicality.

Claims

1. The utility model provides a heat exchange tube leak hunting device, its characterized in that, includes the leak hunting nest of tubes, the leak hunting nest of tubes includes first pipeline (13), second pipeline (14) and punching press pipeline (15), first pipeline (13) and second pipeline (14) all set up in the both ends of waiting to leak hunting heat exchange tube (3) with detachable mode, wherein, first pipeline (13) are provided with exhaust shutoff (2), second pipeline (14) are provided with punching press shutoff (4), first pipeline (13) still are provided with discharge valve (1), punching press pipeline (15) turn-on connection second pipeline (14), punching press pipeline (15) correspond the leak hunting nest of tubes and are provided with pressure-measuring piece and punching press valves, punching press pipeline (15) dispose the drainage subassembly.

2. The heat exchange tube leakage inspection device according to claim 1, wherein the exhaust plug (2) and the punch plug (4) are respectively provided with a detachable plug component corresponding to the heat exchange tube (3) to be inspected, and the plug components comprise a gasket (9), a rubber sealing ring (10), a screw rod (12) with an inner through hole and a nut (11) which are sequentially arranged along the axial direction of the leakage inspection tube group.

3. The heat exchange tube leakage detection device according to claim 1, wherein the second pipeline (14) is communicated with the punching pipeline (15) through a three-way pipe, wherein a first passage of the three-way pipe is connected with the second pipeline (14), a second passage of the three-way pipe is connected with the punching pipeline (15), and a third barrel of the three-way pipe is connected with a pressure measurement piece.

4. The heat exchange tube leakage detection device according to claim 1, wherein the ram valve set comprises a ram valve (7) and a plurality of shut-off valves (6) which are sequentially arranged on a ram pipeline (15), the ram valve (7) is arranged at a position far away from the pressure measuring piece, and the drainage assembly is arranged between the ram valve (7) and the shut-off valves (6) close to the ram valve (7).

5. A heat exchange pipe leakage inspection device according to claim 4, wherein the shut-off valve (6) is provided in two.

6. The heat exchange tube leak detection device according to claim 1, wherein the drain assembly comprises a drain tube (16) communicating with the punch line (15), and the drain tube (16) is provided with a drain valve (8).

7. The heat exchange tube leak detection device according to claim 1, wherein the pressure measurement member is a pressure gauge (5).