Bent pipe sealing test tool

Abstract

The utility model discloses a bend pipe sealing test tool, comprising a test water tank and a test support, the top end of the test support is rotatably provided with a test platen, the test platen is provided with two test limiting blocks, the two test limiting blocks are respectively provided with a bend pipe end sealing device, a test air inlet pipe is arranged in a manner of penetrating through one of the bend pipe end sealing devices, and the test air inlet pipe is provided with a test air outlet pipe. A bent pipe testing and pressing device is also fixedly mounted on the testing bedplate, and is connected with a testing and pulling device; the two ends of a to-be-tested elbow are sealed through the elbow end sealing devices and placed on the test platen, the to-be-tested elbow is fixed through the test limiting block and the elbow test pressing device, and the test traction device releases traction on the elbow test pressing device till the to-be-tested elbow enters water. The testing gas inlet pipe is used for conveying high-pressure gas into the pipe, whether bubbles are generated in water or not is observed, and therefore the sealing performance of the bent pipe to be tested is judged, using is labor-saving, testing and observation are visual, and the testing efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bent pipe detection tools, in particular to a tool for testing the sealing performance of bent pipes. Background Art

[0002] In pipelines used to transport liquids, gases and other media, various types of elbows are needed to turn and connect the pipelines according to the direction of the pipeline. According to the different media transported in the pipeline, some elbows are large in size and obtained by casting. During the formation process of the casting, it is easy to form defects such as sand holes based on its manufacturing process. In addition, the media transported in the pipeline generally have a certain conveying pressure, and the elbows at the turning part of the pipeline will be subjected to greater stress. The existence of sand holes will affect the strength of the elbows. In addition, the sand holes will also affect the service life of the elbows. Therefore, such elbows need to be tested for sealing before being put into use. The relevant equipment currently used has a complex structure and the elbow fixing operation is cumbersome. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a bending pipe sealing test tool which has a simple structure, is easy to operate and can quickly obtain the sealing test result, thereby helping to improve the test efficiency.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a bent pipe sealing test tool, including a test water tank for containing test water, a test bracket is fixed in the test water tank, the top of the test bracket is rotatably equipped with a test table for placing and supporting the bent pipe to be tested, and two test limit blocks for auxiliary fixation of the bent pipe to be tested are relatively arranged on the test table, and the relative surfaces of the two test limit blocks are gradually inclined from top to bottom, and the two test limit blocks are respectively provided with a bent pipe end sealing device, and a test air inlet pipe is provided through one of the bent pipe end sealing devices, and a bent pipe test clamping device is also fixedly installed on the test table, and the bent pipe test clamping device is connected to a test pulling device.

[0005] As a preferred technical solution, the elbow end sealing device includes an end sealing plate, on which an end sleeve ring is fixedly mounted, and at least the outer peripheral surface of the end sleeve ring is coated with an end sealing layer.

[0006] As a preferred technical solution, the bending pipe test clamping device includes at least two clamping support columns fixedly installed on the test table, a clamping support plate is fixedly connected between the two clamping support columns, a clamping screw is threadedly installed through the clamping support plate, and a clamping head is installed at the bottom end of the clamping screw.

[0007] As a preferred technical solution, the clamping head is rotatably mounted on the end of the clamping screw, and the bottom end of the clamping head is configured as a clamping arc surface that matches the outer wall of the bent pipe to be tested.

[0008] As a preferred technical solution, a clamping operating handle is mounted on the top end of the clamping screw.

[0009] As a preferred technical solution, the test pulling device includes a pulling support column fixedly installed on the top of the test water tank, and a pulling steering wheel is rotatably installed on the top of the pulling support column. It also includes a fixed pulling telescopic cylinder, and the telescopic end of the pulling telescopic cylinder is connected to a pulling wire rope, the other end of the pulling wire rope is connected to the bent pipe test clamping device, and the pulling wire rope is arranged across the pulling steering wheel.

[0010] As an improvement to the above technical solution, the test bracket includes a fixed bottom plate arranged in the test water tank, two lifting vertical rods are relatively installed on the fixed bottom plate, a reinforcing cross bar is fixedly connected between the two lifting vertical rods, and the test table is arranged between the two lifting vertical rods through a rotating shaft.

[0011] Due to the adoption of the above technical solution, the elbow sealing test tooling includes a test water tank for containing test water, a test bracket is fixed in the test water tank, the top of the test bracket is rotatably equipped with a test table for placing and supporting the elbow to be tested, two test limit blocks for auxiliary fixation of the elbow to be tested are arranged on the test table, the opposite surfaces of the two test limit blocks are gradually inclined from top to bottom, the two test limit blocks are respectively provided with elbow end sealing devices, a test air inlet pipe is provided through one of the elbow end sealing devices, and a elbow test The clamping device is connected to the test pulling device for the bent pipe test. The utility model has the following beneficial effects: the two ends of the bent pipe to be tested are respectively sealed by the bent pipe end sealing devices and placed on the test table, and are fixed by means of the cooperation of two test limit blocks and the bent pipe test clamping device, and the test pulling device is used to release the pulling on the bent pipe test clamping device until the bent pipe to be tested completely enters the water, and the test air inlet pipe is used to transport high-pressure gas into the pipe to observe whether bubbles are generated in the water, so as to judge the sealing performance of the bent pipe to be tested. The utility model is simple to operate, labor-saving to use, and the test observation is intuitive, which helps to improve the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0013] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0014] Figure 2 It is a schematic diagram of the test state of an embodiment of the utility model;

[0015] Figure 3 It is a test diagram of the test bracket of the embodiment of the utility model;

[0016] In the figure: 1-test water tank; 2-bend pipe to be tested; 3-test table; 4-fixed bottom plate; 5-lifting pole; 6-reinforcement cross bar; 7-test limit block; 8-test air inlet pipe; 9-end sealing plate; 10-end sleeve ring; 11-end sealing layer; 12-clamping support column; 13-clamping support plate; 14-clamping screw; 15-clamping head; 16-clamping arc surface; 17-clamping operating handle; 18-pulling support column; 19-pulling steering wheel; 20-pulling telescopic cylinder; 21-pulling wire rope; 22-support plate. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Needless to say, those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0018] like Figure 1 and Figure 2 As shown, the elbow sealing test tool comprises a test water tank 1 for containing test water, a test bracket is fixed in the test water tank 1, and a test table 3 for placing and supporting the elbow 2 to be tested is rotatably mounted on the top of the test bracket. Under the rotational cooperation between the test bracket and the test table 3, the test table 3 can be rotated, so that the elbow 2 to be tested fixed on its surface can be moved into the water for testing; after the test is completed, the test table 3 and the elbow 2 to be tested are unscrewed, and the next elbow 2 to be tested can be replaced.

[0019] like Figure 3 As shown, the test bracket includes a fixed bottom plate 4 arranged in the test water tank 1, two lifting vertical rods 5 are relatively installed on the fixed bottom plate 4, a reinforcing cross bar 6 is fixedly connected between the two lifting vertical rods 5, and the test table 3 is arranged between the two lifting vertical rods 5 through a rotating shaft. The reinforcing cross bar 6 not only plays a role in strengthening the support of the test table 3, but also can make the two lifting vertical rods 5 rise and fall synchronously, so as to ensure that the bent pipe 2 to be tested can be completely immersed in water for testing, thereby ensuring the test quality.

[0020] Two test limit blocks 7 for auxiliary fixation of the bend pipe 2 to be tested are arranged opposite to each other on the test table 3. The relative surfaces of the two test limit blocks 7 are gradually inclined from top to bottom. The inclined arrangement of the relative surfaces of the two test limit blocks 7 is to provide better support for the bend pipe 2 to be tested, so that it can be better fixed when being screwed in or out of the water surface, so as to prevent it from slipping from the test table 3 into the water.

[0021] In this embodiment, the two test limit blocks 7 are respectively provided with elbow end sealing devices, and a test air inlet pipe 8 is provided through one of the elbow end sealing devices. The two elbow end sealing devices are independent structures that can be separated from the test limit blocks 7. When in use, the two can be removed to complete the sealing assembly with the two ends of the test elbow 2 first, and then the two can be connected to the test elbow 2 and moved to the test table 1. Depending on the size of the test elbow 2, during the loading and unloading process from the test table 1, the hoisting equipment can be used as appropriate to make the test of the test elbow 2 more labor-saving and more efficient.

[0022] Specifically, the elbow end sealing device includes an end sealing plate 9, on which an end sleeve ring 10 is fixedly mounted, and at least the outer peripheral surface of the end sleeve ring 10 is coated with an end sealing layer 11, and the end sealing layer 11 can be set as a rubber structure. Before testing, the end sleeve ring 10 is sleeved into the port of the elbow 2 to be tested, and the two ends of the elbow 2 to be tested are sealed and blocked by the end sealing layer 11, so that its lumen forms a sealed test cavity. During the test, external high-pressure gas is sent into the elbow 2 to be tested by using the test air inlet pipe 8.

[0023] The test bench 3 is also fixedly provided with a bend pipe test clamping device. The bend pipe test clamping device cooperates with the two test limit blocks 7 to fix the bend pipe 2 to be tested on the test bench 1 to prevent it from sliding into the test water tank 1 during the rotation of the test bench 1, thereby ensuring the smoothness of the test. The bend pipe test clamping device includes at least two clamping support columns 12 fixedly provided on the test bench 3, a clamping support plate 13 fixedly connected between the two clamping support columns 12, a clamping screw 14 threadedly installed through the clamping support plate 13, and a clamping head 15 installed at the bottom end of the clamping screw 14. The clamping head 15 is moved downward by rotating the clamping screw 14 until the clamping head 15 is tightly against the bend pipe 2 to be tested.

[0024] In this embodiment, the clamping head 15 is rotatably mounted on the end of the clamping screw 14, and the bottom end of the clamping head 15 is set to a clamping arc surface 16 that matches the outer wall of the bend pipe 2 to be tested. The clamping arc surface 16 can adapt to the arc-shaped outer wall of the bend pipe 2 to be tested, so that the two are in closer contact, thereby improving the clamping effect. The clamping head 15 and the clamping screw 14 are rotated together, so that after the clamping arc surface 16 contacts and fits the outer wall of the bend pipe 2 to be tested, the clamping head 15 no longer rotates synchronously with the clamping screw 14 to ensure the close fit of the two. The top end of the clamping screw 14 is equipped with a clamping operating handle 17, which makes the clamping screw 14 more convenient to operate.

[0025] The bend pipe test clamping device is connected to a test pulling device, and the bend pipe test clamping device is released by the test pulling device. Under the joint action of the gravity of each component on the test table 3, the test table 3 is connected to the bend pipe 2 to be tested and can be automatically rotated into the water for testing; after the test is completed, the bend pipe test clamping device is tightened by the test pulling device until the test table 3 and the bend pipe 2 to be tested are rotated out of the water, and the bend pipe 2 to be tested can be removed.

[0026] The test pulling device of this embodiment includes a pulling support column 18 fixedly installed at the top of the test water tank 1, and a pulling steering wheel 19 is rotatably installed at the top of the pulling support column 18. It also includes a fixed pulling telescopic cylinder 20, and the telescopic end of the pulling telescopic cylinder 20 is connected to a pulling wire rope 21. The other end of the pulling wire rope 21 is connected to the bending test clamping device, and the pulling wire rope 21 is arranged across the pulling steering wheel 19. Through the extension and retraction of the pulling telescopic cylinder 20, the pulling state of the pulling wire rope 21 on the bending test clamping device is changed in time to cooperate with the test.

[0027] The test process of this embodiment is as follows:

[0028] The two ends of the bend pipe 2 to be tested are respectively fitted with the end sleeve ring 10 to implement sealing, and the sealed bend pipe 2 to be tested is placed between the two test limit blocks 7 on the test table 3, and the clamping screw 14 is rotated by the clamping operating handle 17 until the clamping head 15 is tightly against the bend pipe 2 to be tested, and the pipeline providing the high-pressure gas source is fixedly connected to the test air inlet pipe 8; the pulling and telescopic cylinder 20 is started to extend it, and under the action of gravity, the test table 3 and the bend pipe 2 to be tested are rotated downward synchronously until the bend pipe 2 to be tested is completely immersed in water; whether there are bubbles in the water, if not, it means that the bend pipe 2 to be tested has good sealing, and if there are air bags, it means that its sealing is poor and needs to be reprocessed; after the test is completed, the pulling and telescopic cylinder 20 is retracted back to its position, and the test table 3 is rotated out of the test water tank 1 by the pulling wire rope 21, and the bend pipe 2 to be tested can be removed.

[0029] In order to facilitate the loading and unloading operations of the bent pipe 2 to be tested on the test table 3, two removable support plates 22 can be set at the top of the test water tank 1. When the test table 3 is rotated out, the support plates 22 are placed across the top of the test water tank 1 to support the test table 3.

[0030] The description of the present invention is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present invention to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

Claims

1. A bend seal test tool, comprising a test water tank for containing test water, characterized in that: A test bracket is fixed in the test water tank, and the top end of the test bracket is rotatably equipped with a test table for placing and supporting the bent pipe to be tested, and two test limit blocks for auxiliary fixation of the bent pipe to be tested are relatively arranged on the test table, and the opposite surfaces of the two test limit blocks are gradually inclined from top to bottom, and a bent pipe end sealing device is respectively provided on the two test limit blocks, and a test air inlet pipe is provided through one of the bent pipe end sealing devices, and a bent pipe test clamping device is also fixedly installed on the test table, and the bent pipe test clamping device is connected to a test pulling device.

2. The elbow sealing test tool as claimed in claim 1, characterized in that: The elbow end sealing device comprises an end sealing plate, on which an end sleeve ring is fixedly mounted, and at least the outer peripheral surface of the end sleeve ring is covered with an end sealing layer.

3. The elbow sealing test tool as claimed in claim 1, characterized in that: The bending pipe test clamping device includes at least two clamping support columns fixedly installed on the test table, a clamping support plate is fixedly connected between the two clamping support columns, a clamping screw is threadedly installed through the clamping support plate, and a clamping head is installed at the bottom end of the clamping screw.

4. The elbow sealing test tool as claimed in claim 3, characterized in that: The clamping head is rotatably mounted on the end of the clamping screw, and the bottom end of the clamping head is arranged as a clamping arc surface matched with the outer wall of the bent pipe to be tested.

5. The elbow sealing test tool as claimed in claim 3, characterized in that: The top end of the compression screw is equipped with a compression operating handle.

6. The elbow sealing test tool as claimed in claim 1, characterized in that: The test pulling device includes a pulling support column fixedly installed on the top of the test water tank, and a pulling steering wheel is rotatably installed on the top of the pulling support column. It also includes a fixed pulling telescopic cylinder, and the telescopic end of the pulling telescopic cylinder is connected to a pulling wire rope, and the other end of the pulling wire rope is connected to the bent pipe test clamping device, and the pulling wire rope is arranged across the pulling steering wheel.

7. The elbow sealing test tool as claimed in claim 1, characterized in that: The test bracket includes a fixed bottom plate arranged in the test water tank, two lifting vertical rods are relatively installed on the fixed bottom plate, a reinforcing cross bar is fixedly connected between the two lifting vertical rods, and the test table is arranged between the two lifting vertical rods through a rotating shaft.

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