Heating pipeline pressure testing device

Abstract

The utility model relates to the technical field of heating pipeline detection, and discloses a heating pipeline pressure testing device which comprises a bottom plate, and a plurality of heating pipeline pressure sub-testing devices are arranged at the upper end of the bottom plate at intervals. Each heating pipeline pressure sub-testing device comprises a pipeline limiting structure, and the multiple pipeline limiting structures are fixed to the upper end of the bottom plate at intervals. The blocking structure is located on one side of the pipeline limiting structure, and the blocking structure is also fixed to the upper end of the bottom plate; the pipeline moving structure is located on the other side of the pipeline limiting structure, and the pipeline moving structure, the pipeline limiting structure and the plugging structure are located on the same axis; the testing seat is fixed at the top end of the pipeline moving structure, a cylindrical groove is formed in the testing seat, the diameter of the cylindrical groove is larger than the outer diameter of the heating pipeline, and the pipeline moving structure is used for driving the testing seat to move in the horizontal direction. The device is simple to operate, high in detection efficiency and high in safety.

Description

Technical Field

[0001] This utility model relates to the field of heating pipeline testing technology, and in particular to a heating pipeline pressure testing device. Background Technology

[0002] With the improvement of people's living standards, heating has become an essential part of winter in northern China. Pipeline transportation of heating systems has become a convenient and economical method. However, due to limitations in manufacturing precision and aging pipe equipment, leaks in heating pipes are common, severely impacting heating supply. Therefore, leak detection of pipes is crucial. Currently, heating pipe inspection mainly relies on manual labor, which is cumbersome, inefficient, and prone to displacement or shifting during testing, potentially leading to safety accidents. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a heating pipeline pressure testing device that is simple to operate, has high testing efficiency, and is highly safe.

[0004] This utility model is achieved using the following technical solution: a heating pipe pressure testing device, comprising a base plate, with a plurality of heating pipe pressure sub-testing devices spaced apart at the upper end of the base plate; each heating pipe pressure sub-testing device includes a pipe limiting structure, with multiple pipe limiting structures fixed at intervals at the upper end of the base plate; a sealing structure, the sealing structure being located on one side of the pipe limiting structure and also fixed at the upper end of the base plate; a pipe moving structure, the pipe moving structure being located on the other side of the pipe limiting structure, the pipe moving structure, the pipe limiting structure, and the sealing structure being located on the same axis; a test seat, the test seat being fixed at the top of the pipe moving structure, the test seat having a cylindrical groove inside, the diameter of the cylindrical groove being larger than the outer diameter of the heating pipe, the pipe moving structure being used to drive the test seat to move horizontally; and a gas pipe, the front end of the gas pipe being connected to the rear end of the test seat; the pipe limiting structure being used to support and limit the heating pipe, the sealing structure being used to seal one end of the heating pipe, and the pipe moving structure driving the test seat to seal and inflate / depress the other end of the heating pipe.

[0005] Furthermore, the sealing structure includes: a support rod, which is vertically fixed to the upper end of the base plate; a sealing seat, which is fixed to the inner side of the support rod, and the sealing seat also has a cylindrical groove; and a pressure sensor, the front measuring end of which is located in the center of the cylindrical groove in the sealing seat; one end of the heating pipe extends into the cylindrical groove in the sealing seat, the sealing seat is used to seal it, and the pressure sensor is used to detect the pressure in the heating pipe.

[0006] Furthermore, the pipeline moving structure includes support seats, two of which are fixedly spaced on the upper end of the base plate; sliding rods, two of which are symmetrically arranged between the two support seats; a lead screw, the two ends of which are rotatably mounted between the two support seats, the lead screw being located between the two sliding rods, and the outer end of the lead screw extending to the outside of the support seat; a lead screw motor, the lead screw motor being fixed to the outside of the support seat, the drive end of the lead screw motor being connected to the outer end of the lead screw via a coupling; and a mounting plate, the bottom center of which is provided with a lead screw nut, the lead screw nut being mounted on the lead screw via a lead screw drive, and two sets of sliders symmetrically arranged on both sides of the bottom of the mounting plate, the sliders being mounted on the sliding rods via a sliding fit; the lead screw motor is used to drive the lead screw to rotate, and the lead screw nut drives the mounting plate to slide along the two sliding rods via the lead screw drive, thereby driving the test seat to move back and forth.

[0007] Furthermore, the pipe limiting structure includes a cylinder bracket fixed to the top of the mounting plate; a cylinder fixed to the outside of the cylinder bracket, with the actuating end of the cylinder extending through the cylinder bracket to the other side; a clamping plate fixed to the actuating end of the cylinder; and a pipe limiting clamp symmetrically arranged inside the cylinder and clamping plate, the diameter of the internal through hole of the pipe limiting clamp being larger than the outer diameter of the heating pipe; the cylinder's action drives the clamping plate to move inward, using the pipe limiting clamp to clamp the heating pipe in the internal through hole, thus limiting the heating pipe.

[0008] Furthermore, sealing gaskets are provided in the cylindrical grooves of both the test seat and the sealing seat.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. The heating pipe pressure testing device of this utility model uses a pipe moving structure to drive the test seat to move, clamping both ends of the heating pipe between the sealing structure and the test seat, and conducting pressure resistance tests on the heating pipe by measuring the changes in the pressure sensor value. It is easy to operate and has high measurement efficiency.

[0011] 2. The heating pipe pressure testing device of this utility model uses a pipe limiting structure to support and limit the heating pipe. The heating pipe can move horizontally within the pipe limiting structure, but cannot move effectively in other directions, thus avoiding the safety accident caused by the pipe moving during the test. Attached Figure Description

[0012] Figure 1 This is an overall top view of the present invention in Embodiment 1;

[0013] Figure 2 This is a front view of the heating pipeline pressure testing device of this utility model;

[0014] Figure 3 This is a schematic diagram of the pipe moving structure in this utility model;

[0015] Figure 4 This is a schematic diagram of the pipe limiting structure in this utility model.

[0016] In the diagram: 1. Base plate; 2. Pipeline limiting structure; 3. Sealing structure; 4. Test seat; 5. Gas pipeline; 6. Sealing gasket; 7. Pipeline moving structure; 10. Heating pipeline; 21. Cylinder bracket; 22. Cylinder; 23. Pipeline limiting clamp; 24. Clamping plate; 31. Support rod; 32. Sealing seat; 33. Pressure sensor; 71. Support seat; 72. Slide rod; 73. Lead screw; 74. Lead screw motor; 75. Mounting plate. Detailed Implementation

[0017] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0018] The purpose of this invention is to address the shortcomings of existing technologies by providing a pressure testing device for heating pipelines.

[0019] Example 1

[0020] This embodiment provides a pressure testing device for heating pipes, referring to... Figure 1 As shown, the device includes a base plate 1, with three heating pipe pressure sub-testing devices spaced apart on the upper end of the base plate 1. Each of the three heating pipe pressure sub-testing devices can perform pressure tests on the heating pipes. By setting up three sets of heating pipe pressure sub-testing devices, the efficiency of heating pipe pressure testing can be improved. Of course, two or more sets of heating pipe pressure sub-testing devices can also be set up as needed.

[0021] Each heating pipe pressure sub-testing device includes a pipe limiting structure 2, a sealing structure 3, a test seat 4, a gas pipe 5, and a pipe moving structure 7. Two pipe limiting structures 2 are fixed at intervals on the upper end of the base plate 1, and the pipe limiting structures 2 can support and limit the heating pipe 10. The sealing structure 3 is located on one side of the pipe limiting structure 2 and is also fixed on the upper end of the base plate 1. The sealing structure 3 is used to seal one end of the heating pipe 10. The pipe moving structure 7 is located on the other side of the pipe limiting structure 2. The pipe moving structure 7, the pipe limiting structure 2, and the sealing structure 3 are located on the same axis. The pipe moving structure 7 is used to drive the test seat 4 to move horizontally. The test seat 4 is fixed at the top of the pipe moving structure 7. The test seat 4 is provided with a cylindrical groove. The diameter of the cylindrical groove is larger than the outer diameter of the heating pipe 10. The test seat 4 is used to seal the other end of the heating pipe 10 and to charge and release gas. The front end of the gas pipe 5 is connected to the rear end of the test seat 4. The gas pipe 5 is used to transport and release test gas.

[0022] When conducting a pressure test on the heating pipe 10, the pipe limiting structure 2 is used to support and limit the heating pipe 10. At this time, the heating pipe 10 can move horizontally within the pipe limiting structure 2, but cannot move effectively in other directions. The pipe moving structure 7 drives the test seat 4 to move, clamping both ends of the heating pipe 10 between the sealing structure 3 and the test seat 4. The gas pipe 5 is used to deliver and release test gas into the heating pipe 10 to conduct a pressure test on the heating pipe 10.

[0023] Reference Figure 2 As shown, the sealing structure 3 includes a support rod 31, a sealing seat 32, and a pressure sensor 33. The support rod 31 is vertically fixed to the upper end of the base plate 1, and the sealing seat 32 is fixed to the inner side of the support rod 31. A cylindrical groove is also provided inside the sealing seat 32. The front measuring end of the pressure sensor 33 is located in the center of the cylindrical groove inside the sealing seat 32. Sealing gaskets 6 are provided in both the test seat 4 and the cylindrical groove of the sealing seat 32 to improve the contact sealing effect on the end of the heating pipe 10. In this embodiment, the pressure sensor 33 uses a high-pressure damping pressure sensor from the prior art, which can at least measure the pressure of liquids and gases. One end of the heating pipe 10 extends into the cylindrical groove inside the sealing seat 32, is sealed by the sealing seat 32, and the pressure sensor 33 detects the pressure inside the heating pipe 10.

[0024] Reference Figure 3As shown, the pipe moving structure 7 includes a support base 71, a slide rod 72, a lead screw 73, a lead screw motor 74, and a mounting plate 75. Two support bases 71 are fixedly spaced on the upper end of the base plate 1. Two slide rods 72 are symmetrically arranged between the two support bases 71. The two ends of the lead screw 73 are rotatably mounted between the two support bases 71. The lead screw 73 is located between the two slide rods 72, and its outer end extends to the outside of the support base 71. The lead screw motor 74 is fixed to the outside of the support base 71. The drive end of the lead screw motor 74... The lead screw 74 in this embodiment is connected to the outer end of the lead screw 73 via a coupling. It is a stepper motor in the prior art. A lead screw nut is provided at the center of the bottom end of the mounting plate 75. The lead screw nut is mounted on the lead screw 73 through lead screw transmission. Two sets of sliders are symmetrically arranged on both sides of the bottom end of the mounting plate 75. The sliders are mounted on the slide rods 72 through sliding fit. The lead screw motor 74 is used to drive the lead screw 73 to rotate. The lead screw nut drives the mounting plate 75 to slide along the two slide rods 72 through lead screw transmission, thereby driving the test seat 4 to move back and forth.

[0025] Reference Figure 4 As shown, the pipe limiting structure 2 includes a cylinder bracket 21, a cylinder 22, a pipe limiting clamp 23, and a clamping plate 24. The cylinder bracket 21 is fixed to the top of the mounting plate 75, and the cylinder 22 is fixed to the outside of the cylinder bracket 21. In this embodiment, the cylinder 22 uses a single-rod push-pull cylinder in the prior art. The actuating end of the cylinder 22 passes through the cylinder bracket 21 and extends to the other side of the cylinder bracket 21. The clamping plate 24 is fixed to the actuating end of the cylinder 22. The pipe limiting clamp 23 is symmetrically arranged inside the cylinder 22 and the clamping plate 24. The diameter of the internal through hole of the pipe limiting clamp 23 is larger than the outer diameter of the heating pipe 10. The movement of the cylinder 22 drives the clamping plate 24 to move inward, and the pipe limiting clamp 23 clamps the heating pipe 10 in the internal through hole to limit the heating pipe 10.

[0026] The working principle of this utility model is as follows: When conducting a pressure test on the heating pipe 10, the cylinder 22 in the pipe limiting structure 2 drives the clamping plate 24 to move inward. The pipe limiting clamp 23 clamps the heating pipe 10 in the internal through hole, supporting and limiting the heating pipe 10. At this time, the heating pipe 10 can move horizontally within the pipe limiting structure 2, but cannot move effectively in other directions. The lead screw motor 74 in the pipe moving structure 7 drives the lead screw 73 to rotate, and the lead screw nut is transmitted through the lead screw. The mounting plate 75 is slid along the two sliding rods 72, causing the test seat 4 to move back and forth. Both ends of the heating pipe 10 are clamped between the sealing structure 3 and the test seat 4, so that one end of the heating pipe 10 extends into the cylindrical groove in the sealing seat 32. The sealing seat 32 is used to seal it, and the pressure sensor 33 is used to detect the pressure in the heating pipe 10. The other end of the heating pipe 10 is sealed by the test seat 4. After a certain period of time, the pressure resistance test of the heating pipe 10 is carried out by the change in the value of the pressure sensor 33.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pressure testing device for heating pipelines, characterized in that: Includes a base plate (1), and a plurality of heating pipe pressure test devices are provided at intervals on the upper end of the base plate (1); Each heating pipe pressure sub-test device includes Pipeline limiting structure (2), multiple pipeline limiting structures (2) are fixed at intervals on the upper end of the base plate (1); A sealing structure (3) is located on one side of the pipe limiting structure (2) and is also fixed to the upper end of the base plate (1); The pipeline moving structure (7) is located on the other side of the pipeline limiting structure (2), and the pipeline moving structure (7), the pipeline limiting structure (2) and the sealing structure (3) are located on the same axis; Test seat (4), the test seat (4) is fixed to the top of the pipe moving structure (7), the test seat (4) is provided with a cylindrical groove, the diameter of the cylindrical groove is larger than the outer diameter of the heating pipe (10), the pipe moving structure (7) is used to drive the test seat (4) to move horizontally; and Gas pipe (5), the front end of which is connected to the rear end of test seat (4); The pipe limiting structure (2) is used to support and limit the heating pipe (10), the sealing structure (3) is used to seal one end of the heating pipe (10), and the pipe moving structure (7) drives the test seat (4) to seal and vent the other end of the heating pipe (10).

2. The heating pipeline pressure testing device according to claim 1, characterized in that: The sealing structure (3) includes Support rod (31), which is vertically fixed to the upper end of the base plate (1); A sealing seat (32) is fixed to the inner side of the support rod (31), and a cylindrical groove is also provided inside the sealing seat (32); and Pressure sensor (33), the front measuring end of the pressure sensor (33) is located in the center of the cylindrical groove in the sealing seat (32); One end of the heating pipe (10) is inserted into the cylindrical groove in the sealing seat (32) to seal it, and the pressure in the heating pipe (10) is detected by the pressure sensor (33).

3. The heating pipeline pressure testing device according to claim 2, characterized in that: The pipeline moving structure (7) includes Support base (71), two of the aforementioned support bases (71) are fixed at a distance from the upper end of the base plate (1); Slide rods (72), two slide rods (72) are symmetrically arranged between two support bases (71); A lead screw (73) is rotatably mounted between two support seats (71) at both ends. The lead screw (73) is located between two slide rods (72), and the outer end of the lead screw (73) extends to the outside of the support seat (71). A lead screw motor (74) is fixed to the outside of a support base (71), and the drive end of the lead screw motor (74) is connected to the outer end of a lead screw (73) via a coupling; and Mounting plate (75), the bottom center of the mounting plate (75) is provided with a lead screw nut, the lead screw nut is mounted on the lead screw (73) through lead screw transmission, and two sets of sliders are symmetrically arranged on both sides of the bottom of the mounting plate (75), the sliders are mounted on the slide rod (72) through sliding fit; The lead screw motor (74) is used to drive the lead screw (73) to rotate. The lead screw nut drives the mounting plate (75) to slide along the two slide rods (72) through the lead screw transmission, which drives the test seat (4) to move back and forth.

4. The heating pipeline pressure testing device according to claim 3, characterized in that: The pipeline limiting structure (2) includes Cylinder bracket (21), which is fixed to the top of mounting plate (75); Cylinder (22), the cylinder (22) is fixed on the outside of cylinder bracket (21), and the actuating end of the cylinder (22) extends through the cylinder bracket (21) to the other side of the cylinder bracket (21); Clamping plate (24), said clamping plate (24) being fixed to the actuating end of cylinder (22); and Pipe limiting clamp (23) is symmetrically arranged inside the cylinder (22) and clamping plate (24). The diameter of the internal through hole of the pipe limiting clamp (23) is larger than the outer diameter of the heating pipe (10). The cylinder (22) moves the clamp (24) inward, and the pipe limiting clamp (23) clamps the heating pipe (10) in the internal through hole to limit the heating pipe (10).

5. The heating pipeline pressure testing device according to claim 4, characterized in that: The test seat (4) and the sealing seat (32) are both provided with sealing gaskets (6) in their cylindrical grooves.

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