Vacuum-pumping leakage test system for heat exchanger

Abstract

The utility model discloses a heat exchanger vacuum-pumping leakage test system, which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a support, the upper surface of the support is fixedly connected with a shell, the upper surface of the shell is communicated with a connecting pipe, the side surface of the shell is fixedly connected with a pipe plate, the side surface of the pipe plate is provided with a flange, and the flange is provided with a flange. The side, away from the tube plate, of the flange is fixedly connected with a tube box. The device comprises a fixing plate, the upper surface of the fixing plate is slidably connected with a supporting plate, a fastening bolt is arranged in the supporting plate, the upper surface of the supporting plate is fixedly connected with a vacuum pump and an air heater, the side surface of the vacuum pump communicates with a vacuum pipe, and a vacuum gauge is arranged at the end of the vacuum pipe. Through the above structure, the vacuum pump is slidably arranged on the surface of the fixing plate, and the fastening bolts are arranged to fix the vacuum pump, so that the position of the vacuum pump can be conveniently and finely adjusted after the device is fixed, vacuumizing detection is more accurate, and a vacuum tube junction is prevented from affecting a detection result.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vacuum pumping leak testing technical field, especially a heat exchanger vacuum pumping leak testing system. BACKGROUND

[0002] The existing heat exchanger vacuum pumping leak testing system is simple to operate, and is more suitable for use, and a hose is arranged to connect the detection device and the heat exchanger, and the heat exchanger is detected through a vacuum pump and a vacuum gauge, but only single vacuum pumping leak testing detection can be carried out, and the detection result is easily affected by the liquid evaporated in the heat exchanger, such as the heat exchanger vacuum pumping leak testing system disclosed in Chinese patent No. CN202322404079.1, which optimizes the structure of the leak testing system through the cooperation of a vacuum pump, a hose, a vacuum gauge, a needle valve, a gun head, a gun barrel, a quick connector and a sealing rubber strip, so that the leak testing system is simple to operate, has strong site adaptability, and can realize leak testing operation in different sites and different positions, but only single vacuum pumping leak testing detection can be carried out, and the detection result is easily affected by the liquid evaporated in the heat exchanger.

[0003] Innovations of the utility model

[0004] The utility model discloses a heat exchanger vacuum pumping leak testing system, which is fixed on the surface of a support plate, and the support plate is slidably arranged on the surface of a fixed plate. The vacuum pump is fixed by a fastening bolt, so that the position of the vacuum pump can be conveniently adjusted after the device is fixed, the vacuum pumping detection is more accurate, the vacuum pipe kinks are prevented from affecting the inspection result, and the magnet arranged on the lower surface of the fixed plate is convenient for quick fixing, so that the heat exchanger vacuum pumping leak testing system is suitable for various detection environments. The vacuum pump and the heat exchanger are connected by a vacuum pipe, and a vacuum gauge is arranged at the end of the vacuum pipe, so that the vacuum degree in the heat exchanger can be quickly detected. A hot air blower is arranged on the surface of the support plate, and hot air can be blown into the heat exchanger through a hot air pipe. In combination with the pressure gauge at the end of the hot air pipe, the heat exchanger can be subjected to positive pressure leak detection before vacuum pumping detection, so that large leak points of the heat exchanger are eliminated, the heat exchanger can be subjected to drying treatment, and the liquid remaining in the heat exchanger is prevented from evaporating during vacuum pumping, so as to affect the detection result.

[0005] The utility model discloses still provide with above-mentioned heat exchanger vacuum pumping system, comprising: bottom plate, bottom plate upper surface fixedly connected with support, support upper surface fixedly connected with the casing, the casing upper surface is connected with the connecting pipe, the casing side surface fixedly connected with the tube sheet, the tube sheet side surface is provided with the flange, the flange is fixedly connected with the pipe box one side away from the tube sheet, the fixed plate, the fixed plate upper surface slidingly connected with the support plate, the support plate inside is provided with the fastening bolt, the support plate upper surface fixedly connected with vacuum pump and hot -blast machine, vacuum pump side surface is connected with the vacuum pipe, the vacuum pipe end is provided with vacuum gauge, hot -blast machine side surface is connected with the hot -blast pipe, and the hot -blast pipe end is provided with pressure gauge. Through above-mentioned parts, vacuum pump is fixedly arranged on the support plate surface, then the support plate is slidably arranged on the fixed plate surface, sets up the fastening bolt and fixes it, is convenient for the device fixed position after the convenient fine adjustment of vacuum pump, makes vacuum pumping detection more accurate, prevents the vacuum pipe from knot and influences the inspection result, and the magnet is arranged on the lower surface of the fixed plate to facilitate quick fixing, to adapt to various detection environments, through the vacuum pipe that vacuum pump and heat exchanger are connected, and the vacuum gauge that the end of the vacuum pipe is provided, can quickly detect the vacuum degree inside the heat exchanger, and the hot -blast machine is arranged on the surface of the support plate, and hot -blast pipe can blow hot air into the heat exchanger, and the pressure gauge at the end of the hot -blast pipe can carry out positive pressure leak detection on the heat exchanger before vacuum pumping detection, exclude the big leak point of the heat exchanger, and can dry the inside of the heat exchanger, prevent the evaporation of residual liquid in it when pumping, influence the detection result.

[0006] According to the heat exchanger vacuum pumping system, the support has two and is located at two sides of the casing, and the connecting pipe has two and is located at two sides of the casing. Through the above components, stable support is provided for the heat exchanger, and two connecting pipes are used for vacuum pumping and hot air injection respectively.

[0007] According to the heat exchanger vacuum pumping system, the tube plate has two and is located at two sides of the casing, and the flange has two and is located at two sides of the casing. Through the above components, a complete heat exchanger structure is formed.

[0008] According to the heat exchanger vacuum pumping system, the flange and the tube plate are provided with connecting bolts, and the connecting bolts are uniformly distributed in the flange. Through the above components, the connection fastness of the device is improved.

[0009] According to the heat exchanger vacuum pumping system, the flange and the tube plate are provided with connecting bolts, and the connecting bolts are uniformly distributed in the flange. Through the above components, the connection fastness of the device is improved.

[0010] The utility model relates to a heat exchanger vacuum pumping system of trial leak, fixed plate lower surface fixedly connected with magnet, fixed plate and magnet lower surface and bottom plate upper surface contact.

[0011] The utility model relates to a heat exchanger vacuum pumping system of trial leak, the fastening bolt has four and is located at support plate four corners, vacuum pipe and hot -blast pipe end and the upper surface of the connecting pipe are linked together.

[0012] The utility model relates to a heat exchanger vacuum pumping system of trial leak, vacuum gauge is located at vacuum pipe and the connecting of pipe, pressure gauge is located at hot -blast pipe and the connecting of pipe.

[0013] Beneficial effect:

[0014] Compared with the prior art, the utility model discloses a vacuum pump is fixedly arranged on the surface of the support plate, and then the support plate is slidably arranged on the surface of the fixed plate, a fastening bolt is arranged to fix the support plate, so that the position of the vacuum pump can be conveniently fine-tuned after the device is fixed, the vacuum pumping detection is more accurate, the vacuum pipe is prevented from being affected by the inspection result, and the magnet arranged on the lower surface of the fixed plate is convenient for quick fixing, so that the device is suitable for various detection environments, the vacuum pipe connected between the vacuum pump and the heat exchanger and the vacuum gauge arranged at the end of the vacuum pipe can quickly detect the vacuum degree in the heat exchanger, the heat blower is arranged on the surface of the support plate, hot air can be blown into the heat exchanger through the hot -blast pipe, the pressure gauge at the end of the hot -blast pipe can detect the heat exchanger under positive pressure before vacuum pumping detection, so that the large leak point of the heat exchanger is eliminated, the heat exchanger can be dried, liquid in the heat exchanger is prevented from evaporating during vacuum pumping, and the detection result is affected. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further illustrated below in connection with the drawings and examples.

[0016] Figure 1 It is the overall structural drawing of the utility model heat exchanger vacuum pumping system of trial leak;

[0017] Figure 2 It is the overhead structure diagram of the utility model heat exchanger vacuum pumping system of trial leak;

[0018] Figure 3 It is the side structure diagram of the utility model heat exchanger vacuum pumping system of trial leak;

[0019] Figure 4The utility model discloses a heat exchanger vacuum leak detection system's side cross section structure diagram.

[0020] Legend:

[0021] 1, bottom plate, 2, support, 3, shell, 4, connecting pipe, 5, tube sheet, 6, flange, 7, tube box, 8, fixed plate, 9, support plate, 10, fastening bolt, 11, vacuum pump, 12, hot air machine, 13, vacuum tube, 14, vacuum gauge, 15, hot air pipe, 16, pressure gauge, 17, connecting bolt, 18, magnet. Specific implementation

[0022] This part will describe the specific embodiment of the utility model in detail, and the preferred embodiment of the utility model is shown in the drawings, and the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0023] Reference Figures 1-4 The utility model discloses a heat exchanger vacuum leak detection system, comprising: bottom plate 1, the upper surface fixed connection of bottom plate 1 has support 2, the upper surface fixed connection of support 2 has shell 3, support 2 has two and is located the both sides of shell 3, the upper surface of shell 3 is communicated with connecting pipe 4, connecting pipe 4 has two and is located the both sides of shell 3, the side surface fixed connection of shell 3 has tube sheet 5, tube sheet 5 has two and is located the both sides of shell 3, and the side surface of tube sheet 5 is provided with flange 6, flange 6 has two and is located two tube sheet 5 far from shell 3 one side respectively, and the connection bolt 17 is arranged between flange 6 and tube sheet 5, the connection bolt 17 has several and is evenly distributed in the inside of flange 6, and the hole groove is set up in the inside of flange 6 and tube sheet 5, and the fixed connection of flange 6 far from tube sheet 5 one side has tube box 7, and tube box 7 is communicated with the side end of shell 3.

[0024] Specifically, the shell 3, the connecting pipe 4, the tube sheet 5, the flange 6, the connecting bolt 17 and the tube box 7 constitute a complete heat exchanger structure, the bottom plate 1 is provided with the installation space of the whole device, and the two supports 2 support the heat exchanger from both sides.

[0025] The lower surface of the fixed plate 8 is fixedly connected with a magnet 18, the lower surfaces of the fixed plate 8 and the magnet 18 are in contact with the upper surface of the bottom plate 1, the upper surface of the fixed plate 8 is slidably connected with a support plate 9, the inside of the support plate 9 is provided with four fastening bolts 10, the upper surface of the support plate 9 is fixedly connected with a vacuum pump 11 and a hot air machine 12, the side surface of the vacuum pump 11 is communicated with a vacuum pipe 13, the end of the vacuum pipe 13 is provided with a vacuum gauge 14, the vacuum gauge 14 is located at the position where the vacuum pipe 13 is connected with the connecting pipe 4, the side surface of the hot air machine 12 is communicated with a hot air pipe 15, the ends of the vacuum pipe 13 and the hot air pipe 15 are communicated with the upper surface of the connecting pipe 4, and the end of the hot air pipe 15 is provided with a pressure gauge 16, which is located at the position where the hot air pipe 15 is connected with the connecting pipe 4.

[0026] Specifically, the magnet 18 on the lower surface of the fixed plate 8 facilitates quick disassembly and assembly of the fixed plate 8, the magnet 18 fixes the fixed plate 8 on the upper surface of the bottom plate 1, the support plate 9 can slide on the surface of the fixed plate 8, which facilitates fine adjustment of the positions of the vacuum pump 11 and the hot air machine 12 on the upper surface of the support plate 9, prevents the vacuum pipe 13 and the hot air pipe 15 from being knotted and affecting the operation of the device, the fastening bolts 10 are used to fix the support plate 9, the hot air machine 12 is started to blow hot air into the heat exchanger, positive pressure leak detection is performed on the heat exchanger, large leak points of the heat exchanger are quickly eliminated, the inside of the heat exchanger can be heated and dried, the liquid in the heat exchanger is evaporated, the liquid does not affect the vacuum leak detection result, preliminary negative pressure detection is performed on the inside of the heat exchanger through air cooling before vacuum leak detection, the vacuum pump 11 is started to perform vacuumization on the inside of the heat exchanger through the vacuum pipe 13, and the vacuum gauge 14 is used to complete the vacuum leak detection of the heat exchanger.

[0027] Working principle: when the system is used, the magnet 18 on the lower surface of the fixed plate 8 facilitates quick disassembly and assembly of the fixed plate 8, the magnet 18 fixes the fixed plate 8 on the upper surface of the bottom plate 1, the support plate 9 can slide on the surface of the fixed plate 8, which facilitates fine adjustment of the positions of the vacuum pump 11 and the hot air machine 12 on the upper surface of the support plate 9, prevents the vacuum pipe 13 and the hot air pipe 15 from being knotted and affecting the operation of the device, the fastening bolts 10 are used to fix the support plate 9, the hot air machine 12 is started to blow hot air into the heat exchanger, positive pressure leak detection is performed on the heat exchanger, large leak points of the heat exchanger are quickly eliminated, the inside of the heat exchanger can be heated and dried, the liquid in the heat exchanger is evaporated, the liquid does not affect the vacuum leak detection result, preliminary negative pressure detection is performed on the inside of the heat exchanger through air cooling before vacuum leak detection, the vacuum pump 11 is started to perform vacuumization on the inside of the heat exchanger through the vacuum pipe 13, and the vacuum gauge 14 is used to complete the vacuum leak detection of the heat exchanger.

[0028] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range that the person skilled in the art has possesses without departing from the utility model's tenet under the precondition that the knowledge range that the person skilled in the art has possesses.

Claims

1. A heat exchanger vacuum leak detection system, comprising: Include: The bottom plate (1), the upper surface of the bracket (2) is fixedly connected with the bracket (2), the upper surface of the shell (3) is communicated with the pipe (4), the side surface of the shell (3) is fixedly connected with the pipe plate (5), the side surface of the pipe plate (5) is provided with flange (6), the flange (6) is fixedly connected with the pipe box (7) away from the pipe plate (5) side; The fixed plate (8), the upper surface of the support plate (9) is slidably connected with the support plate (9), the inside of the support plate (9) is provided with fastening bolt (10), the upper surface of the support plate (9) is fixedly connected with vacuum pump (11) and hot air machine (12), the side surface of the vacuum pump (11) is communicated with vacuum tube (13), the end of the vacuum tube (13) is provided with vacuum gauge (14), the side surface of the hot air machine (12) is communicated with hot air pipe (15), the end of the hot air pipe (15) is provided with pressure gauge (16).

2. The heat exchanger vacuum leak detection system of claim 1, wherein, The bracket (2) has two and is located on both sides of the shell (3), the pipe (4) has two and is located on both sides of the shell (3).

3. The heat exchanger vacuum leak detection system of claim 1, wherein, The pipe plate (5) has two and is located on both sides of the shell (3), the flange (6) has two and is located on both sides of the flange (6).

4. The heat exchanger vacuum leak detection system of claim 1, wherein, The flange (6) and the pipe plate (5) are provided with connecting bolts (17) between them, the connecting bolts (17) have several and are evenly distributed in the flange (6).

5. The heat exchanger vacuum leak detection system of claim 1, wherein, The flange (6) and the pipe plate (5) are provided with holes, the pipe box (7) is communicated with the side end of the shell (3).

6. The heat exchanger vacuum leak detection system of claim 1, wherein, The lower surface of the fixed plate (8) is fixedly connected with the magnet (18), the lower surface of the fixed plate (8) and the magnet (18) is in contact with the upper surface of the bottom plate (1).

7. The heat exchanger vacuum leak detection system of claim 1, wherein, The fastening bolt (10) has four and is located at the four corners of the support plate (9), the end of the vacuum tube (13) and the hot air pipe (15) is communicated with the upper surface of the pipe (4).

8. The heat exchanger vacuum leak detection system of claim 1, wherein, The vacuum gauge (14) is located at the joint of the vacuum tube (13) and the pipe (4), the pressure gauge (16) is located at the joint of the hot air pipe (15) and the pipe (4).

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