Blasting test device for high-frequency welded pipe

Abstract

The utility model discloses a high-frequency welded pipe blasting testing device, which comprises a frame body, a testing module, a control module, a liquid pressure module and a water pipe, the frame body comprises a testing cabin, a control cabin and a liquid pressure cabin, the testing module is arranged in the testing cabin, the control module is arranged in the control cabin, and the liquid pressure module is arranged in the liquid pressure cabin; the liquid pressure module provides liquid with pressure for the test module through a water pipe under the control of the control module; the test module comprises a left pressurization module, a right pressurization module, a sliding block and a guide rail, the guide rail is arranged on the bottom surface of the test cabin, the right pressurization module is erected on the guide rail through the sliding block arranged at the bottom of the right pressurization module, and the right pressurization module slides to a designated position through the guide rail; the left pressurization module and the right pressurization module press the to-be-tested pipe through the pre-pressing type pressurizer. According to the utility model, the pre-pressing type supercharger is used, so that the position of the pipe to be detected can be checked after the first pressing, and the error-tolerant rate is higher than that of pressing by only using a cylinder.

Description

Technical Field

[0001] The utility model relates to the field of testing devices, in particular to a high-frequency welded pipe blasting testing device. Background Art

[0002] High-frequency welded pipes are one of the core components of heat exchanger system products. Heat exchangers are widely used in industries such as aviation, electric power, industrial and civil air conditioning, chemicals, ships, automobiles, locomotives, transportation, machinery, and metallurgy. Currently, high-performance high-frequency welded pipes are mostly made of clad aluminum alloys. They have advantages such as good heat exchange performance, high strength, and light weight, and are adopted by a large number of heat exchanger manufacturers. During use, high-frequency welded pipes are injected with water under a certain pressure. Therefore, high-frequency welded pipes must have a certain pressure resistance. Therefore, the product needs to be subjected to blasting tests during the production process. Currently, during blasting tests, due to the unreasonable structural design of the test device, the clamping operation of the high-frequency welded pipe to be tested is very inconvenient, seriously affecting the test efficiency. Utility Model Content

[0003] In order to solve the problems in the background technology, the utility model provides a high-frequency welded pipe blasting test device with simple structure, reasonable design and high clamping efficiency.

[0004] To this end, the utility model adopts the following technical solutions:

[0005] A high-frequency welded pipe blasting test device comprises: a frame, a test module, a control module, a liquid pressure module, and a water pipe, wherein: the frame comprises a test chamber, a control chamber, and a liquid pressure chamber; the test module is disposed in the test chamber, the control module is disposed in the control chamber, and the liquid pressure module is disposed in the liquid pressure chamber; the liquid pressure module provides pressurized liquid to the test module through the water pipe under the control of the control module; the side of the test chamber facing the operator is a transparent window;

[0006] The test module includes a left boost module, a right boost module, a slider and a guide rail, wherein the guide rail is arranged on the bottom surface of the test chamber, and the right boost module is mounted on the guide rail via the slider provided at the bottom thereof, and the right boost module slides to a designated position via the slider;

[0007] The left boost module and the right boost module both pressurize the pipe to be tested through a pre-pressurized booster.

[0008] Preferably, the left supercharging module comprises: a left sealing bracket, a liquid injection needle, a left sealing pressure block and a left pre-compression supercharger;

[0009] The left sealing bracket is fixedly arranged on the bottom surface of the test chamber, and is used to set up the output end of the left pre-pressure booster to connect to the left sealing pressure block, and a minor arc-shaped recess is provided at the bottom of the left sealing pressure block; one end of the liquid injection needle is connected to the output end of the water pipe, and the other end of the liquid injection needle passes through the minor arc-shaped recess of the left sealing pressure block and extends away from the water pipe; the water pipe is fixed on the left sealing bracket, and the cross-sectional shape of the liquid injection needle is consistent with the minor arc-shaped recess of the left sealing pressure block, and the liquid injection needle is used to inject liquid into the tube to be tested through the water pipe.

[0010] Preferably, the left sealing bracket and the left sealing pressing block press one end of the tube to be tested under the action of the left pre-compression supercharger.

[0011] Preferably, the right supercharging module comprises a right sealing bracket, a right sealing pressure block and a right pre-compression supercharger;

[0012] The right pre-compression supercharger is mounted on the right sealing bracket, and the output end of the right pre-compression supercharger is fixedly connected to the right sealing pressure block.

[0013] Preferably, the right sealing bracket and the right sealing pressure block press the end of the tube to be tested away from the left supercharging module under the action of the right pre-compression supercharger.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The utility model has a simple structure, reasonable design, convenient and easy clamping, and greatly improves the clamping efficiency.

[0016] 2. The utility model uses a pre-compression booster, which can check the position of the test tube after the first compression. It has a greater fault tolerance rate than simply using a cylinder to compress, and greatly reduces the probability of the injection needle breaking due to the wrong placement of the test tube.

[0017] 3. The utility model sets the right boost module on the slide rail, which is conducive to testing high-frequency welded pipes of different lengths and improves applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the test module structure of the present utility model;

[0020] Figure 3 This is a schematic diagram of the combined structure of the left boost module and the water pipe of the utility model;

[0021] Figure 4This is a schematic structural diagram of the right boost module of the present utility model;

[0022] Figure 5 This is an enlarged structural diagram of the liquid injection needle in the left boost module of the present invention.

[0023] In the figure: 1. frame, 2. test module, 3. control module, 4. water pipe, 1-1. test cabin, 1-2. control cabin, 1-3. liquid pressure cabin, 2-1. left boost module, 2-1-1. left sealing bracket, 2-1-2. liquid injection needle, 2-1-3. left sealing block, 2-1-4. left pre-compression supercharger, 2-2. right boost module, 2-2-1. right sealing bracket, 2-2-2. right sealing block, 2-2-3. right pre-compression supercharger, 2-3. slider, 2-4. guide rail. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1 As shown, the high-frequency welded pipe blasting test device of the present invention includes: a frame 1, a test module 2, a control module 3, a liquid pressure module (not shown), and a water pipe 4. The frame 1 includes a test chamber 1-1, a control chamber 1-2, and a liquid pressure chamber 1-3. The test module 2 is disposed within the test chamber 1-1, the control module 3 is disposed within the control chamber, and the liquid pressure module is disposed within the liquid pressure chamber 1-3. Under the control of the control module 3, the liquid pressure module provides pressurized liquid to the test module 2 via the water pipe 4. The side of the test chamber 1-1 facing the observer is a transparent window made of tempered glass.

[0026] like Figure 2 As shown, the test module 2 includes a left boost module 2-1, a right boost module 2-2, a slider 2-3 and a guide rail 2-4. The guide rail 2-4 is arranged on the bottom surface of the test cabin 1-1. The right boost module 2-2 is mounted on the guide rail 2-4 through the slider 2-3 set at the bottom thereof. The right boost module 2-2 slides to the specified position through the guide rail 2-4.

[0027] like Figure 3 As shown, the left boost module 2-1 includes: a left sealing bracket 2-1-1, a liquid injection needle 2-1-2, a left sealing pressure block 2-1-3 and a left pre-compression supercharger 2-1-4; the left sealing bracket 2-1-1 is fixedly arranged on the bottom surface of the test chamber 1-1, and is used to set up the left pre-compression supercharger 2-1-4. The output end of the left pre-compression supercharger 2-1-4 is connected to the left sealing pressure block 2-1-3. The bottom of the left sealing pressure block 2-1-3 is provided with a bad arc-shaped notch, as shown in FIG. Figure 5As shown, one end of the injection needle 2-1-2 is connected to the output end of the water pipe 4, and the other end of the injection needle 2-1-2 extends away from the water pipe 4 through the inferior arc-shaped notch of the left sealing block 2-1-3. The outer wall of the water pipe 4 near the left booster module 2-1 is fixedly connected to the left sealing bracket 2-1-1. The cross-sectional shape of the injection needle 2-1-2 matches the inferior arc-shaped notch of the left sealing block 2-1-3. The injection needle 2-1-2 is used to inject liquid into the tube to be tested through the water pipe 4. The left sealing bracket 2-1-1 and the left sealing block 2-1-3 are pressed against one end of the tube to be tested under the action of the left pre-compression booster 2-1-4.

[0028] like Figure 4 As shown, the right boost module 2-2 includes a right sealing bracket 2-2-1, a right sealing block 2-2-2, and a right pre-pressurizer 2-2-3. The right pre-pressurizer 2-2-3 is mounted on the right sealing bracket 2-2-1, and the output end of the right pre-pressurizer 2-2-3 is fixedly connected to the right sealing block 2-2-2. Under the action of the right pre-pressurizer 2-2-3, the right sealing bracket 2-2-1 and the right sealing block 2-2-2 compress the end of the test tube away from the left boost module 2-1.

[0029] When using the present invention for testing, the rear end of the tube to be tested is compacted and sealed by the right sealing block 2-2-2, and the front end of the tube to be tested is then placed on the injection needle 2-1-2. The left pre-compression booster 2-1-4 is used for the first compaction. At this point, the tube to be tested is not compacted. The position of the tube to be tested can be checked to see if it corresponds to the injection needle 2-1-2. If there is any deviation, it needs to be adjusted. Otherwise, the injection needle 2-1-2 may break in the subsequent steps. After confirming the corresponding position, the left pre-compression booster 2-1-4 is used for the second compaction. At this point, the tube to be tested is sealed. Then, water is injected into the sealed tube to be tested at a certain pressure through the injection needle to cause the tube to burst. If the pressure gauge value reaches or exceeds the quality requirement, the product is qualified; otherwise, it is unqualified.

[0030] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with specific operating steps.

[0031] To perform a high-frequency welded pipe blasting test, perform the following steps on the pipe to be tested:

[0032] Step 1: debug the device of the present invention so that the left sealing bracket and the right sealing bracket are at the same height, and adjust the position of the right boost module through the control module according to the length of the pipe to be tested to adapt to the blasting test of high-frequency welded pipes of different lengths.

[0033] Step 2: Place the tube to be tested in the test module. First, use the right sealing block to compact and seal the rear end of the tube. Then, place the front end of the tube over the injection needle. Restore the transparent tempered glass of the test chamber. Place the front end of the tube close to the water pipe, and the rear end away from it.

[0034] Step three: Use the left pre-compression booster to perform the first compaction through the control module. At this time, the tube to be tested is not compacted. You can check whether the position of the tube to be tested corresponds to the injection needle. If there is any deviation, it needs to be adjusted. Otherwise, the injection needle will be broken in the subsequent steps. After confirming that their positions correspond correctly, use the left pre-compression booster to perform the second compaction. At this time, the tube to be tested is in a sealed state.

[0035] Step 4. Since the cross-section of the injection needle is in the shape of a bad arc, the cross-section shape of the injection needle matches the shape of the bad arc notch at the bottom of the left sealing block. During the test, the control module uses the liquid pressure module to inject water of a certain pressure into the injection needle. The water is pressed into the tube to be tested and causes the tested tube to explode. The control module observes whether the pressure gauge value reaches or exceeds the quality requirement pressure value. If so, it is a qualified product, otherwise it is an unqualified product.

Claims

1. A high-frequency welded pipe blasting test device, characterized in that: include: A frame (1), a test module (2), a control module (3), a liquid pressure module and a water pipe (4), wherein: the frame (1) comprises a test chamber (1-1), a control chamber (1-2) and a liquid pressure chamber (1-3); the test module (2) is arranged in the test chamber (1-1), the control module (3) is arranged in the control chamber (1-2), and the liquid pressure module is arranged in the liquid pressure chamber (1-3); the liquid pressure module provides pressurized liquid to the test module (2) through the water pipe (4) under the control of the control module (3); the side of the test chamber (1-1) facing the operator is a transparent window; The test module (2) comprises a left boost module (2-1), a right boost module (2-2), a slider (2-3) and a guide rail (2-4); the guide rail (2-4) is arranged on the bottom surface of the test chamber (1-1); the right boost module (2-2) is mounted on the guide rail (2-4) via the slider (2-3) arranged at the bottom thereof; the right boost module (2-2) slides to a designated position via the slider (2-3); The left boosting module (2-1) and the right boosting module (2-2) both pressurize the tube to be tested via a pre-pressurized booster.

2. The high-frequency welded pipe blasting test device according to claim 1, characterized in that: The left boost module (2-1) comprises: a left sealing bracket (2-1-1), a liquid injection needle (2-1-2), a left sealing pressing block (2-1-3) and a left pre-pressure booster (2-1-4); The left sealing bracket (2-1-1) is fixedly arranged on the bottom surface of the test chamber (1-1) and is used to set up the left pre-pressure supercharger (2-1-4). The output end of the left pre-pressure supercharger (2-1-4) is connected to the left sealing pressure block (2-1-3). The bottom of the left sealing pressure block (2-1-3) is provided with a bad arc-shaped notch; one end of the injection needle (2-1-2) is connected to the output end of the water pipe (4). The other end of the needle (2-1-2) passes through the inferior arc-shaped notch of the left sealing pressure block (2-1-3) and extends in a direction away from the water pipe (4); the water pipe (4) is fixed on the left sealing bracket (2-1-1), and the cross-sectional shape of the liquid injection needle (2-1-2) matches the inferior arc-shaped notch of the left sealing pressure block (2-1-3). The liquid injection needle (2-1-2) is used to inject liquid into the tube to be tested through the water pipe (4).

3. The high-frequency welded pipe blasting test device according to claim 2, characterized in that: The left sealing bracket (2-1-1) and the left sealing pressing block (2-1-3) press one end of the tube to be tested under the action of the left pre-compression supercharger (2-1-4).

4. The high-frequency welded pipe blasting test device according to claim 1, characterized in that: The right boost module (2-2) comprises a right sealing bracket (2-2-1), a right sealing pressure block (2-2-2) and a right pre-compression supercharger (2-2-3); The right pre-compression supercharger (2-2-3) is mounted on the right sealing bracket (2-2-1), and the output end of the right pre-compression supercharger (2-2-3) is fixedly connected to the right sealing pressure block (2-2-2).

5. The high-frequency welded pipe blasting test device according to claim 4, characterized in that: The right sealing bracket (2-2-1) and the right sealing pressure block (2-2-2) press the end of the tube to be tested away from the left supercharging module (2-1) under the action of the right pre-compression supercharger (2-2-3).

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