Pipeline strength detection device of pressure vessel

Abstract

The invention relates to the technical field of pipeline strength detection, and particularly discloses a pipeline strength detection device for a pressure vessel, which comprises a base, the top of the base is fixedly connected with a sealing box for strength detection, and the top of the sealing box is provided with a sealing cover for sealing the interior of the box. The bottom of the base is fixedly connected with supporting blocks distributed in a rectangular shape. When the device is used, the second three-way valve can control water or gas to enter the inserting cylinder, the detection device is controlled to test water pressure or air pressure of the pressure pipeline, the strength of the pressure pipeline can be obtained through the water pressure and air pressure tests, and the detection accuracy is improved according to detection data of the pressure pipeline. Whether the pressure pipeline is suitable for the pressure container or not is judged, the using safety of the pressure container is improved, and when the pressure pipeline is subjected to strength detection, the accuracy of strength detection data of the pressure pipeline is improved by simulating the working environment of the pressure pipeline.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline strength detection, and in particular relates to a pipeline strength detection device for a pressure vessel. Background Art

[0002] A pressure vessel is a closed device that contains gas or liquid and bears a certain pressure. Pressure vessels are widely used and play an important role in many sectors such as industry, civil industry, military industry, and many fields of scientific research. In the chemical and petrochemical fields, pressure vessels are mainly used in process such as heat transfer, mass transfer, reaction, and storage and transportation of pressurized gas or liquefied gas. They are also widely used in other industrial and civil fields. Multiple pipelines are used in pressure vessels. In order to ensure the performance and safety of the pressure vessels, the strength of the pipelines used needs to be tested before they are put into use.

[0003] In the Chinese patent with publication number CN215574320U, a pipeline strength detection device for a pressure vessel is mentioned, wherein the water pressure detection mechanism includes a water tank, a water pump, a first conduit, a second conduit and a connector, and an air pressure detection mechanism is arranged inside the detection box, and the air pressure detection mechanism includes an air tank, an air pump, a first air guide tube and a second air guide tube, and the pipe body is clamped in the middle of the clamp; the transmission rod is driven to move upward, and a set of gears are driven to reverse through the fixed block, so that a set of tooth plates are relatively moved, and the clamp clamps the pipe body;

[0004] The pipeline strength detection device for pressure vessels in the above-mentioned prior art fails to simulate the use environment of the pressure pipeline when performing strength detection on the pressure vessel pipeline, resulting in low accuracy of the test data. In addition, no sealing component is provided between the water pipe and the air pipe and the pipeline body. When performing strength testing, water or gas leakage is prone to occur, which will also affect the accuracy of the test data. For this reason, we propose a pipeline strength detection device for pressure vessels. Summary of the invention

[0005] The object of the present invention is to provide a pipeline strength detection device for a pressure vessel to solve the problems in the prior art of failing to simulate the use environment of the pressure pipeline and not providing a sealing component, resulting in low accuracy of the test data.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A pipeline strength detection device for a pressure vessel, comprising:

[0008] A base, a sealing box for strength detection is fixedly connected to the top of the base, a sealing cover for sealing the inside of the box is arranged on the top of the sealing box, a supporting block distributed in a rectangular shape is fixedly connected to the bottom of the base, and a control box for controlling the operation of the strength detection device is arranged on the top of the base;

[0009] A pressure pipe, which is arranged inside the sealing box and is used for strength testing of water pressure and air pressure, and a connector is arranged at the left end of the pressure pipe;

[0010] A testing mechanism, the testing mechanism comprising a water pressure testing assembly and a gas pressure testing assembly, the water pressure testing assembly being arranged on the top of the base and used to test the strength of the pressure vessel pipeline by water pressure, the gas pressure testing assembly being arranged on the top of the base and used to test the strength of the pressure vessel pipeline by gas pressure, and filling the sealing box with gas pressure simulating the working environment during the testing process;

[0011] The fixing mechanism is arranged inside the sealing box and is used to control the pressure pipeline to be connected with the testing mechanism to perform a strength test on the pressure pipeline.

[0012] Preferably: the air pressure testing assembly includes an air pump, the air pump is fixedly connected to the top of the base, the air pump outlet is fixedly connected to an air outlet pipe, the other end of the air outlet pipe is fixedly connected to a three-way valve, the left side of the sealing box is fixedly connected to a plug-in tube running through the left side of the sealing box, and the front side of the sealing box is provided with a connecting pipe extending to the inside of the sealing box.

[0013] Preferably, the front end of the connecting pipe is connected to the interior of a three-way valve, and a three-way valve 2 connected to the interior of the plug connector is provided on the left side of the plug cylinder.

[0014] Preferably, a valve for controlling the opening and closing of the plug-in cylinder is arranged in the middle of the plug-in cylinder, and the inner side of the plug-in cylinder is matched with the outer side of the connector.

[0015] Preferably: a temperature sensor extending into the interior of the sealing cover is arranged on the top of the sealing cover, and a pressure sensor extending into the interior of the sealing cover is arranged on the top of the sealing rod.

[0016] Preferably: the water pressure test assembly comprises a water pump, the water pump is fixedly connected to the top of the base, the water outlet of the water pump is fixedly connected to a water injection pipe, and the other end of the water injection pipe is connected to the inside of the three-way valve 2.

[0017] Preferably: the water pump water inlet is fixedly connected with a water inlet pipe.

[0018] Preferably: the fixing mechanism comprises a U-shaped seat, the U-shaped seat is fixedly connected to the bottom of the sealing box, a cylinder is arranged on the right side of the sealing box, a sliding rod extending to the right side of the sealing box is fixedly connected to the telescopic end of the cylinder, and a sealing plug is fixedly connected to the other end of the sliding rod.

[0019] Preferably, a bracket is fixedly connected to the outer side of the cylinder, and the bracket is fixedly connected to the right side of the sealing box.

[0020] Preferably, the pressure pipe is slidably connected to the inner side of the U-shaped block, the outer side of the sealing plug is matched with the inner side of the pressure pipe, and a sealing sleeve is arranged on the outer side of the sliding rod.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention is provided with a testing mechanism. When in use, the three-way valve 2 can control water or gas to enter the plug-in tube, and control the detection device to test the water pressure or air pressure of the pressure pipeline. Through the water pressure and air pressure tests, the strength of the pressure pipeline can be obtained. According to the detection data of the pressure pipeline, it is judged whether it is suitable for use in a pressure vessel, thereby improving the safety of the pressure vessel when in use.

[0023] 2. The present invention, through the arrangement of an air pump, a three-way valve and a connecting pipe, can first inject air pressure into the sealing box through the connecting pipe when performing strength testing on the pressure pipeline, so that the air pressure in the sealing box is the same as the air pressure of the working environment of the pressure pipeline in the pressure vessel, and the accuracy of the pressure pipeline strength test data is improved by simulating the working environment of the pressure pipeline.

[0024] 3. The present invention arranges the cylinder, the sealing plug, the connector and the plug-in tube. Before the strength test of the pressure pipeline is performed, the cylinder pushes the connector arranged at the left end of the pressure pipeline into the plug-in tube, and the other end of the pressure pipeline is blocked under the action of the sealing plug, so that the sealing performance of the pressure pipeline is good during the detection, and the accuracy of the pressure pipeline detection data is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 One of the three-dimensional diagrams of the present invention;

[0026] Figure 2 This is the second stereogram of the present invention;

[0027] Figure 3 It is a schematic diagram of the interior of the sealing box of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the cylinder of the present invention;

[0029] Figure 5 It is a schematic diagram of the pipeline connection of the testing mechanism of the present invention;

[0030] Figure 6 It is a schematic diagram of the sealing cover of the present invention.

[0031] In the figure: 1. base; 2. support block; 3. sealing box; 4. control box; 5. sealing cover;

[0032] 6. Testing mechanism; 601. Air pump; 602. Three-way valve 1; 603. Air injection pipe; 604. Three-way valve 2; 605. Water injection pipe; 606. Water pump; 607. Pressure sensor; 608. Connecting tube; 609. Air outlet pipe; 610. Connecting pipe; 611. Valve; 612. Water inlet pipe; 613. Temperature sensor;

[0033] 7. Fixing mechanism; 701. U-shaped seat; 702. Bracket; 703. Cylinder; 704. Sealing plug; 705. Sliding rod; 706. Sealing sleeve;

[0034] 8. Pressure pipe; 801. Connector. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0036] Reference Figure 1-Figure 6 As shown, the present invention provides a pipeline strength detection device for a pressure vessel, comprising:

[0037] A base 1, a sealing box 3 for strength detection is fixedly connected to the top of the base 1, a sealing cover 5 for sealing the inside of the box is arranged on the top of the sealing box 3, a supporting block 2 distributed in a rectangular shape is fixedly connected to the bottom of the base 1, and a control box 4 for controlling the operation of the strength detection device is arranged on the top of the base 1;

[0038] The pressure pipe 8 is arranged inside the sealing box 3 and is used for performing strength tests of water pressure and air pressure. A connector 801 is arranged at the left end of the pressure pipe 8 and is used for connecting with the testing mechanism 6;

[0039] The testing mechanism 6 includes a water pressure testing assembly and a gas pressure testing assembly. The water pressure testing assembly is arranged on the top of the base 1 and is used to test the strength of the pressure vessel pipeline by water pressure. The gas pressure testing assembly is arranged on the top of the base 1 and is used to test the strength of the pressure vessel pipeline by gas pressure. During the testing process, the sealing box 3 is filled with gas pressure simulating the working environment.

[0040] The fixing mechanism 7 is arranged inside the sealing box 3 and is used to control the connection between the pressure pipe 8 and the testing mechanism 6 to perform a strength test on the pressure pipe 8 .

[0041] In a further embodiment, referring to Figure 1-Figure 3 and Figure 5 The air pressure test assembly includes an air pump 601, which is fixedly connected to the top of the base 1. The air pump 601 can inject gas of a certain pressure into the pressure pipe 8 when testing the strength of the pressure pipe 8. The air outlet of the air pump 601 is fixedly connected to an air outlet pipe 609, and the other end of the air outlet pipe 609 is fixedly connected to a three-way valve 602. The three-way valve 602 can control the connection between the air injection pipe 603, the connecting pipe 610 and the air outlet pipe 609. The left side of the sealing box 3 is fixedly connected to a plug-in tube 608 that runs through the left side of the sealing box 3. The plug-in tube 608 is used for communication with the pressure pipe 8. The front side of the sealing box 3 is provided with a connecting pipe 610 extending to the inside of the sealing box 3. The connecting pipe 610 can be connected to the sealing box 3 is injected with air pressure of suitable pressure, the front end of the connecting pipe 610 is connected with the inside of the three-way valve 1 602, the left side of the plug-in cylinder 608 is provided with a three-way valve 2 604 connected with the inside of the plug connector, the middle of the plug-in cylinder 608 is provided with a valve 611 for controlling the opening and closing of the plug-in cylinder 608, the valve 611 can control the opening and closing of the plug-in cylinder 608, the inner side of the plug-in cylinder 608 is adapted to the outer side of the connector 801, the top of the sealing cover 5 is provided with a temperature sensor 613 extending to the inside of the sealing cover 5, the temperature sensor 613 can control the temperature in the sealing box 3, the top of the sealing rod is provided with a pressure sensor 607 extending to the inside of the sealing cover 5, the pressure sensor 607 can obtain the pressure in the sealing box 3.

[0042] In this embodiment, when performing a strength test on the pressure pipe 8, gas of suitable pressure can be injected into the pressure pipe 8 through the air pump 601, and the strength of the pressure pipe 8 can be tested according to the changes of the pressure pipe 8 to determine whether it can meet the pressure usage strength.

[0043] In a further embodiment, referring to Figure 1-Figure 3 and Figure 5 The water pressure test assembly includes a water pump 606, which is fixedly connected to the top of the base 1. The water pump 606 can inject water into the plug-in tube 608 through the water injection pipe 605, and then enter the pressure pipe 8 through the plug-in pipe to perform a water pressure strength test. The water outlet of the water pump 606 is fixedly connected to the water injection pipe 605, and the other end of the water injection pipe 605 is connected to the inside of the three-way valve 604. The water pump 606 suction port is fixedly connected to the water inlet pipe 612. The water inlet pipe 612 facilitates the water pump 606 to draw water and inject it into the pressure pipe 8.

[0044] In this embodiment, water of suitable pressure can be injected into the pressure pipe 8 through the water pump 606. By observing the changes of the pressure pipe 8, the strength of the pressure pipe 8 can be obtained to determine whether it is suitable for use as a pressure vessel.

[0045] In a further embodiment, referring to Figure 1-Figure 4 The fixing mechanism 7 includes a U-shaped seat 701, which is fixedly connected to the bottom of the sealing box 3. The U-shaped seat 701 facilitates the insertion of the pressure pipe 8. A cylinder 703 is arranged on the right side of the sealing box 3. The telescopic end of the cylinder 703 is fixedly connected to a slide bar 705 extending to the right side of the sealing box 3. The cylinder 703 is used to push the slide bar 705 to move. The other end of the slide bar 705 is fixedly connected to a sealing plug 704. The sealing plug 704 is used to block the other end of the pressure pipe 8 to ensure the sealing performance. The cylinder 703 A bracket 702 is fixedly connected to the outside, and the bracket 702 is fixedly connected to the right side of the sealing box 3. The bracket 702 is used to fix the cylinder 703. The pressure pipe 8 is slidably connected to the inner side of the U-shaped block. The outer side of the sealing plug 704 is adapted to the inner side of the pressure pipe 8. A sealing sleeve 706 is arranged on the outer side of the slide rod 705. A penetrating mounting hole is opened on the right side of the sealing box 3. The sealing sleeve 706 is fixedly connected to the inner side of the mounting hole. The slide rod 705 can be inside the sealing sleeve 706 while ensuring the sealing of the sealing box 3.

[0046] In this embodiment, before the pressure pipe 8 is subjected to a strength test, the cylinder 703 can push the pressure pipe 8 to connect with the testing mechanism 6 and block the other end of the pressure pipe 8, thereby facilitating the strength test of the pressure pipe 8.

[0047] The working principle of the present invention is as follows:

[0048] When the strength test is performed on the pipeline of the pressure vessel, the control box 4 can control the cylinder 703, the water pump 606 and the air pump 601, place the pressure pipeline 8 to be tested into the two U-shaped blocks, start the cylinder 703, the cylinder 703 extends and pushes the slide bar 705 to move to the left, pushes the sealing plug 704 to move to the left, and the sealing plug 704 seals the right end of the pressure pipeline 8. The cylinder 703 continues to extend and pushes the connector 801 on the left side of the pressure pipeline 8 into the inside of the plug-in tube 608, completing the connection of the test pipeline;

[0049] The connection between the air outlet pipe 609 and the connecting pipe 610 is controlled by the three-way valve 1 602, and the air pump 601 injects air into the sealing box 3 through the air outlet pipe 609, the three-way valve 1 602 and the connecting pipe 610 until the pressure sensor 607 detects that the pressure is the same as the working environment pressure of the pressure pipe 8, and stops;

[0050] The connection between the air outlet pipe 609 and the air injection pipe 603 is controlled again by the three-way valve 1 602, and the connection between the air injection pipe 603 and the plug-in tube 608 is controlled by the three-way valve 2 604. The air pump 601 enters the pressure pipe 8 through the air outlet pipe 609, the three-way valve 1 602, the air injection pipe 603, the three-way valve 2 604 and the plug-in tube 608 in sequence to test the strength of the pressure pipe 8.

[0051] Finally, the connection between the water injection pipe 605 and the plug-in tube 608 is controlled by the three-way valve 604, and the water pump 606 extracts the pressure test water through the water inlet pipe 612. The water enters the pressure pipe 8 through the water injection pipe 605 and the plug-in tube 608 to test the water pressure strength.

[0052] After the test is completed, the sealing cover 5 is opened to shrink the cylinder 703. At this time, the pressure pipe 8 after the test is taken out to complete the test of the strength of the pressure pipe 8.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipeline strength detection device for a pressure vessel, characterized in that: include: A base (1), a sealing box (3) for strength detection is fixedly connected to the top of the base (1), a sealing cover (5) for sealing the inside of the box is arranged on the top of the sealing box (3), supporting blocks (2) distributed in a rectangular shape are fixedly connected to the bottom of the base (1), and a control box (4) for controlling the operation of the strength detection device is arranged on the top of the base (1); A pressure pipe (8), the pressure pipe (8) being arranged inside the sealing box (3) and used for performing strength tests of water pressure and air pressure, and a connector (801) being arranged at the left end of the pressure pipe (8); A testing mechanism (6), the testing mechanism (6) comprising a water pressure testing assembly and a gas pressure testing assembly, the water pressure testing assembly being arranged on the top of the base (1) and used to test the strength of the pressure vessel pipeline by water pressure, the gas pressure testing assembly being arranged on the top of the base (1) and used to test the strength of the pressure vessel pipeline by gas pressure, and filling the sealing box (3) with gas pressure simulating a working environment during the testing process; A fixing mechanism (7) is arranged inside the sealing box (3) and is used to control the connection between the pressure pipeline (8) and the testing mechanism (6) to perform a strength test on the pressure pipeline (8).

2. The pipeline strength detection device for a pressure vessel according to claim 1, characterized in that: The air pressure test assembly comprises an air pump (601), the air pump (601) is fixedly connected to the top of the base (1), the air outlet of the air pump (601) is fixedly connected to an air outlet pipe (609), the other end of the air outlet pipe (609) is fixedly connected to a three-way valve (602), the left side of the sealing box (3) is fixedly connected to a plug-in tube (608) that runs through the left side of the sealing box (3), and the front side of the sealing box (3) is provided with a connecting pipe (610) that extends to the inside of the sealing box (3).

3. A pipeline strength detection device for a pressure vessel according to claim 2, characterized in that: The front end of the connecting pipe (610) is connected to the interior of the three-way valve 1 (602), and the left side of the plug-in cylinder (608) is provided with a three-way valve 2 (604) connected to the interior of the plug connector.

4. The pipeline strength detection device for a pressure vessel according to claim 2, characterized in that: A valve (611) for controlling the opening and closing of the plug-in tube (608) is arranged in the middle of the plug-in tube (608), and the inner side of the plug-in tube (608) is adapted to the outer side of the connector (801).

5. The pipeline strength detection device for a pressure vessel according to claim 2, characterized in that: The top of the sealing cover (5) is provided with a temperature sensor (613) extending into the interior of the sealing cover (5), and the top of the sealing rod is provided with a pressure sensor (607) extending into the interior of the sealing cover (5).

6. The pipeline strength detection device for a pressure vessel according to claim 1, characterized in that: The water pressure test assembly comprises a water pump (606), wherein the water pump (606) is fixedly connected to the top of the base (1), and a water outlet of the water pump (606) is fixedly connected to a water injection pipe (605), and the other end of the water injection pipe (605) is connected to the inside of the second three-way valve (604).

7. A pipeline strength detection device for a pressure vessel according to claim 6, characterized in that: The water pump (606) water inlet is fixedly connected to a water inlet pipe (612).

8. The pipeline strength detection device for a pressure vessel according to claim 1, characterized in that: The fixing mechanism (7) comprises a U-shaped seat (701), the U-shaped seat (701) is fixedly connected to the inner bottom of the sealing box (3), a cylinder (703) is arranged on the right side of the sealing box (3), a sliding rod (705) extending to the right side of the sealing box (3) is fixedly connected to the telescopic end of the cylinder (703), and the other end of the sliding rod (705) is fixedly connected to a sealing plug (704).

9. A pipeline strength detection device for a pressure vessel according to claim 8, characterized in that: A bracket (702) is fixedly connected to the outside of the cylinder (703), and the bracket (702) is fixedly connected to the right side of the sealing box (3).

10. The pipeline strength detection device for a pressure vessel according to claim 8, characterized in that: The pressure pipe (8) is slidably connected to the inner side of the U-shaped block, the outer side of the sealing plug (704) is adapted to the inner side of the pressure pipe (8), and a sealing sleeve (706) is provided on the outer side of the sliding rod (705).

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