Rapid pressure test device for heat exchanger

Abstract

The utility model provides a rapid pressure test device for a heat exchanger, relates to the technical field of heat exchange devices, and solves the technical problems that the conventional pressure test device for the heat exchanger is not suitable for hot air of various sizes and specifications and the plug end of the heat exchanger is easy to press and damage. The water tank is used for soaking the heat exchanger, the lifting frames are arranged on the mounting plane and used for lifting the heat exchanger, and each lifting frame is provided with a semicircular pressing head used for fixing the end socket end of the heat exchanger and an end socket piece used for blocking the end socket end of the heat exchanger. The pressing head comprises an arc-shaped fixing part used for fixing the end socket end of the heat exchanger and a screw hole used for being telescopically connected with the lifting frame. According to the utility model, the positions of the sliding grooves on the sliding rods can be adjusted to adapt to heat exchangers with different lengths; and the end socket end of the heat exchanger is prevented from being pressed and deformed while the end socket end of the heat exchanger is stably fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange devices, in particular to a rapid pressure testing device for a heat exchanger. Background Art

[0002] A heat exchanger (also called a heat exchanger or heat exchange equipment) is a device used to transfer heat from a hot fluid to a cold fluid to meet the specified process requirements. It is an industrial application of convective heat transfer and heat conduction. The heat exchanger pressure test is an important indicator for testing heat exchangers. After the heat exchanger is processed, a pressure test operation is required, that is, the heat exchanger is immersed in water, one end is blocked, and the other end is ventilated to check whether there is any gas leakage. The current existing detection method is basically that the worker points the joint of the heat exchanger upward, one end of the heat exchanger is connected to the vent plug and fixed with a buckle, and the other end of the heat exchanger is blocked with a plug to ensure that there is no ventilation. The worker then turns the product clamping rod to immerse the product clamp holding the heat exchanger into the water tank, and then manually lifts the product clamping rod after the pressure test. This pressure tester is inefficient, and the pressure test results are mainly judged by the worker's experience, and the labor cost is high.

[0003] Therefore, a heat exchanger automatic pressure tester proposed in the patent with publication number CN208621409U realizes automatic pressure test of heat exchanger, which is convenient to install heat exchanger during pressure test of heat exchanger, has high pressure test efficiency and improves production capacity. However, the existing pressure test device has a fixed setting of the pressing head or vent pipe for sealing and venting the heat exchanger, which is not easy to adjust according to different sizes of heat exchangers, and the pressing head is usually flat. If the heat exchanger to be tested is a copper joint, pressing directly on the interface will cause damage to the joint. Utility Model Content

[0004] The utility model aims to provide a heat exchanger rapid pressure test device to solve the technical problems that the existing heat exchanger pressure test device is not suitable for hot air of various sizes and specifications and is easy to press and damage the plug end of the heat exchanger.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A heat exchanger rapid pressure test device comprises a mounting plane, a water tank for soaking the heat exchanger and a plurality of lifting frames arranged on the mounting plane for lifting the heat exchanger, the lifting frames being provided with a semicircular pressing head for fixing the heat exchanger head end and a head member for sealing the heat exchanger head end, the pressing head comprising an arc-shaped fixing portion for fixing the heat exchanger head end and a screw hole for telescopically connecting the lifting frame.

[0007] Preferably, it also includes two groups of ventilation racks slidably arranged on the installation plane for fixing the ventilation ends at both ends of the heat exchanger and connecting the test gas, and the ventilation racks are provided with a plurality of groups of ventilation pipes for connecting the ventilation ends of the heat exchanger.

[0008] Preferably, the mounting plane is provided with a plurality of sliding rods for adjusting the lifting frame and the ventilation frame in the horizontal direction, the sliding rods are slidably connected with a plurality of sliding grooves, the sliding grooves are slidably connected with the lifting frame and the ventilation frame in the vertical direction, and the sliding rods are provided with fixing blocks for fixing the sliding grooves.

[0009] Preferably, the ventilation frame is configured as a transverse I-shaped frame, and the ventilation pipe passes through a transverse plate of the ventilation frame and is provided with a connector for connecting to the heat exchanger.

[0010] Preferably, the ventilation pipe is provided with a second pressure gauge for detecting the air pressure in the heat exchange tube of the heat exchanger, and the ventilation frame is provided with mounting bolts for mounting the cross plate.

[0011] Preferably, the ventilation pipe is provided with a connected integrated pipe, and the integrated pipe is provided with an extension pipe for connecting to the main air pipe.

[0012] Preferably, the main air pipe is provided with a first barometer for measuring ventilation pressure.

[0013] Preferably, the lifting frame is provided with fixed heads for limiting and fixing the two ends of the heat exchanger and a fixed neck for placing and limiting the heat exchange tubes of the heat exchanger, and the fixed neck is provided with an arc groove for limiting the heat exchange tubes.

[0014] Preferably, the water tank is provided with a water inlet pipe for passing water and a water outlet pipe for draining water.

[0015] By adopting this technical solution, the position of the sliding groove on the sliding rod can be adjusted to adapt to heat exchangers of different lengths, and the installation and testing of the heat exchanger can be controlled by adjusting the sliding of the lifting frame in the sliding groove; by designing a special fixing part for the head end, while stably fixing the head end of the heat exchanger, it is possible to adjust the contact length of the heat exchanger to prevent the head end of the heat exchanger from being compressed and deformed.

[0016] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0017] 1. The utility model can adapt to heat exchangers of different lengths by adjusting the position of the sliding groove on the sliding rod;

[0018] 2. The utility model can stably fix the heat exchanger head end while preventing the heat exchanger head end from being compressed and deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a heat exchanger rapid pressure testing device provided in Example 1 of the utility model;

[0021] Figure 2 A schematic structural diagram of a pressure head of a heat exchanger rapid pressure test device provided in Example 1 of the utility model;

[0022] Figure 3 A front structural schematic diagram of a ventilation frame of a heat exchanger rapid pressure test device provided in Example 2 of the utility model;

[0023] Figure 4 A schematic diagram of the side structure of the ventilation frame of the heat exchanger rapid pressure test device provided in Example 2 of the utility model;

[0024] Figure 5 A schematic diagram of the front structure of a lifting frame of a heat exchanger rapid pressure testing device provided in Example 3 of the utility model;

[0025] Figure 6 A schematic side structural diagram of a lifting frame of a heat exchanger rapid pressure testing device provided in Example 3 of the utility model;

[0026] Icons: 1. Heat exchanger; 2. Mounting plane; 3. Water tank; 31. Water inlet pipe; 32. Water outlet pipe; 4. Sliding groove; 5. Lifting frame; 51. Fixed neck; 52. Fixed head; 53. Arc-shaped groove; 54. Head piece; 6. Ventilation frame; 61. Ventilation pipe; 62. Horizontal plate; 63. Connecting head; 64. Second pressure gauge; 65. Mounting bolt; 7. Main air pipe; 71. Extension pipe; 72. Integrated pipe; 73. First pressure gauge; 8. Sliding rod; 81. Fixed block; 9. Pressing head; 91. Screw hole; 92. Fixing part. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Example 1

[0033] A heat exchanger rapid pressure test device comprises a mounting plane 2, a water tank 3 for soaking a heat exchanger 1, and a plurality of lifting frames 5 arranged on the mounting plane 2 for lifting the heat exchanger 1, wherein the lifting frames 5 are provided with a semicircular pressing head 9 for fixing the head end of the heat exchanger 1 and a head member 54 for sealing the head end of the heat exchanger 1, wherein the pressing head 9 comprises an arc-shaped fixing portion 92 for fixing the head end of the heat exchanger 1 and a screw hole 91 for telescopically connecting the lifting frame 5.

[0034] In this embodiment, two sets of ventilation racks 6 are slidably arranged on the installation plane 2 for fixing the ventilation ends of the heat exchanger 1 and connecting the test gas. The ventilation racks 6 are provided with several sets of ventilation pipes 61 for connecting the ventilation ends of the heat exchanger 1.

[0035] In this embodiment, the mounting plane 2 is provided with a plurality of sliding rods 8 for adjusting the lifting frame 5 and the ventilation frame 6 in the horizontal direction, the sliding rods 8 are slidably connected with a plurality of sliding grooves 4, the sliding grooves 4 are slidably connected with the lifting frame 5 and the ventilation frame 6 in the vertical direction, and the sliding rods 8 are provided with fixing blocks 81 for fixing the sliding grooves 4.

[0036] In this embodiment, the ventilation pipe 61 is provided with a connected integrated pipe 72 , and the integrated pipe 72 is provided with an extension pipe 71 for connecting with the main air pipe 7 .

[0037] In this embodiment, the main air pipe 7 is provided with a first barometer 73 for measuring the ventilation pressure.

[0038] In this embodiment, the water tank 3 is provided with a water inlet pipe 31 for passing water and a water outlet pipe 32 for draining water.

[0039] Working principle and usage:

[0040] During operation, the position of the sliding groove 4 on the sliding rod 8 can be adjusted to adapt to heat exchangers 1 of different lengths, and the sliding of the lifting frame 5 in the sliding groove 4 can be adjusted to control the installation and testing of the heat exchanger 1; by designing a special fixing part 92 for the head end, while stably fixing the head end of the heat exchanger 1, it is suitable for adjusting the contact length of the heat exchanger 1 to prevent the head end of the heat exchanger 1 from being compressed and deformed.

[0041] Example 2

[0042] The only difference between this embodiment and the first embodiment is that, in this embodiment, the ventilation frame 6 is configured as a transverse I-shaped frame, and the ventilation pipe 61 passes through a transverse plate 62 of the ventilation frame 6 and is provided with a connector 63 for connecting to the heat exchanger 1 .

[0043] In this embodiment, the ventilation pipe 61 is provided with a second pressure gauge 64 for detecting the air pressure in the heat exchange pipe of the heat exchanger 1 , and the ventilation frame 6 is provided with mounting bolts 65 for mounting the transverse plate 62 .

[0044] Example 3

[0045] The only difference between this embodiment and embodiment 1 is that, in this embodiment, the lifting frame 5 is provided with a fixed head 52 for limiting and fixing the two ends of the heat exchanger 1 and a fixed neck 51 for placing and limiting the heat exchange tube of the heat exchanger 1, and the fixed neck 51 is provided with an arc groove 53 for limiting the heat exchange tube.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat exchanger rapid pressure test device, comprising a mounting plane (2), a water tank (3) for soaking a heat exchanger (1), and a plurality of lifting frames (5) arranged on the mounting plane (2) for lifting the heat exchanger (1), characterized in that: The lifting frame (5) is provided with a semicircular pressing head (9) for fixing the head end of the heat exchanger (1) and a head member (54) for sealing the head end of the heat exchanger (1); the pressing head (9) comprises an arc-shaped fixing portion (92) for fixing the head end of the heat exchanger (1) and a screw hole (91) for telescopically connecting the lifting frame (5).

2. A heat exchanger rapid pressure test device according to claim 1, characterized in that: It also comprises two groups of ventilation racks (6) slidably arranged on the installation plane (2) for fixing the ventilation ends at both ends of the heat exchanger (1) and connecting the test gas, and the ventilation racks (6) are provided with a plurality of groups of ventilation pipes (61) for connecting the ventilation ends of the heat exchanger (1).

3. A heat exchanger rapid pressure test device according to claim 2, characterized in that: The installation plane (2) is provided with a plurality of sliding rods (8) for adjusting the lifting frame (5) and the ventilation frame (6) in the horizontal direction. The sliding rods (8) are slidably connected with a plurality of sliding grooves (4). The sliding grooves (4) are slidably connected with the lifting frame (5) and the ventilation frame (6) in the vertical direction. The sliding rods (8) are provided with fixing blocks (81) for fixing the sliding grooves (4).

4. A heat exchanger rapid pressure test device according to claim 2 or 3, characterized in that: The ventilation frame (6) is configured as a transverse I-shaped frame, and the ventilation pipe (61) passes through a transverse plate (62) of the ventilation frame (6) and is provided with a connector (63) for connecting to the heat exchanger (1).

5. A heat exchanger rapid pressure test device according to claim 4, characterized in that: The ventilation pipe (61) is provided with a second pressure gauge (64) for detecting the air pressure in the heat exchange pipe of the heat exchanger (1), and the ventilation frame (6) is provided with mounting bolts (65) for mounting the transverse plate (62).

6. A heat exchanger rapid pressure testing device according to any one of claims 2, 3 and 5, characterized in that: The ventilation pipe (61) is provided with a communicating integrated pipe (72), and the integrated pipe (72) is provided with an extension pipe (71) for communicating with the main air pipe (7).

7. A heat exchanger rapid pressure test device according to claim 6, characterized in that: The main air pipe (7) is provided with a first barometer (73) for measuring ventilation air pressure.

8. A heat exchanger rapid pressure test device according to any one of claims 1, 2, 3, 5 and 7, characterized in that: The lifting frame (5) is provided with a fixing head (52) for limiting and fixing the two ends of the heat exchanger (1) and a fixing neck (51) for placing and limiting the heat exchange tube of the heat exchanger (1); the fixing neck (51) is provided with an arc-shaped groove (53) for limiting the heat exchange tube.

9. A heat exchanger rapid pressure test device according to any one of claims 1, 2, 3, 5 and 7, characterized in that: The water tank (3) is provided with a water inlet pipe (31) for passing water and a water outlet pipe (32) for draining water.

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