CN113267220B - Pressure pipeline testing device - Google Patents

Abstract

The invention relates to the technical field of pipeline safety, in particular to a pressure pipeline testing device; the gas pipe and the gas outlet pipe are respectively connected with the detected pipeline in a disassembling way, the gas storage tank is connected with the gas pipe in a disassembling way, the one-way valve is arranged in the gas storage tank and fixedly connected with the gas storage tank, and the outer side wall of the gas outlet pipe is sequentially provided with the pressure sensor and the flow sensor; the gas pipe and the gas outlet pipe comprise a pipe body, a connecting ring, a first rubber ring and an air charging ring, wherein the connecting ring is fixedly connected with the pipe body, the first rubber ring is fixedly connected with the connecting ring and the air charging ring respectively and is positioned between the connecting ring and the air charging ring, and an air charging groove is formed in the side face of the first rubber ring and is communicated with the inside of the air charging ring; the air is supplied to the air storage tank through the one-way valve, the air is input through the air transmission pipe, and is discharged to the outside from the air outlet pipe after passing through the detected pipeline, and the flow parameter of the detected pipeline is detected by the flow sensor.

Description

A pressure pipeline testing device

Technical field

The invention relates to the technical field of pipeline safety, and in particular to a pressure pipeline testing device.

Background technique

With the development of industry, measuring fluid flow parameters is one of the most important aspects of industrial measurement. Industries such as oil and gas, petrochemicals, food and beverages, medical and automobiles have increasingly higher requirements for the accuracy and range of flow measurement. In order to adapt to a variety of uses, various types of flow meters and measurement methods have been introduced.

The existing flow parameter inspection method is to use a flow test instrument to test the pipelines that need to be tested one by one. Each test needs to seal the pipeline interface, which is inefficient in this product flow inspection process.

Contents of the invention

The purpose of the present invention is to provide a pressure pipeline testing device, aiming to solve the technical problem in the prior art that the pipeline interface needs to be sealed for each test, and the efficiency is low in the product flow inspection process.

In order to achieve the above object, the present invention provides a pressure pipeline testing device. The pressure pipeline testing device includes a gas supply component and a detection component. The gas supply component includes a gas storage tank, a one-way valve, a gas transmission pipe and a gas outlet pipe. The gas pipeline and the gas outlet pipe are detachably connected to the pipeline under test and are located at both ends of the pipeline under test. The gas storage tank is detachably connected to the gas pipeline and is located away from the gas pipeline. The one-way valve is installed on one side of the gas storage tank and is fixedly connected to the gas storage tank. The detection component includes a pressure sensor and a flow sensor. The outer wall of the air outlet pipe The pressure sensor and the flow sensor are installed in sequence;

The gas delivery pipe and the gas outlet pipe each include a pipe body, a connecting ring, a first rubber ring and an inflatable ring. The connecting ring is fixedly connected to the pipe body and is located on one side of the pipe body. A rubber ring is fixedly connected to the connecting ring and the inflatable ring respectively, and is located between the connecting ring and the inflatable ring. The connecting ring is provided at the mouth of the pipe under test, and the first The rubber ring and the inflatable ring are arranged on the outer wall of the pipe under test. An inflatable groove is provided on the side of the first rubber ring, and the inflatable groove is connected with the inside of the inflated ring.

Gas is supplied to the gas storage tank through the one-way valve, and the gas is input through the gas pipe. After passing through the measured pipe, it is discharged from the gas outlet pipe to the outside world, using the pressure sensor and the flow sensor. Measure the flow parameters of the measured pipeline.

Wherein, the detection component further includes a pressure regulating valve and a pressure gauge, and the pressure regulating valve and the pressure gauge are sequentially installed on the outer wall of the gas transmission pipe.

The pressure regulating valve is adjusted according to the pressure gauge so that the flow rate of the measured pipeline changes.

Wherein, the inflatable ring includes an elastic layer and a fixed layer. The elastic layer is movably connected to the pipe under test and is close to the outer wall of the pipe under test. The fixed layer is fixedly connected to the elastic layer. And located on the outer wall of the elastic layer.

When connecting, the inflatable ring is inflated, and the elastic coefficient of the elastic layer is relatively large. The elastic layer expands toward the pipe under test and is close to the pipe under test, thereby ensuring air tightness.

Wherein, the inflatable ring further includes an inflatable valve, which is fixedly connected to the fixed layer and located on the outer side wall of the fixed layer.

The inflation ring is inflated or deflated through the inflation valve.

Wherein, the pressure pipe testing device further includes an inflation pipe, which is fixedly connected to the gas storage tank and located on one side of the gas storage tank.

The inflatable tube is connected to the air storage tank, and when fixed, the inflatable ring is inflated using the inflatable tube.

Wherein, the pressure pipe testing device further includes an inflation joint, which is fixedly connected to the inflation pipe and located at an end of the inflation pipe away from the gas storage tank.

The inflation joint is used to connect the inflation pipe and the inflation valve, which facilitates installation and disassembly and ensures air tightness.

In a pressure pipeline testing device of the present invention, the gas transmission pipe and the gas outlet pipe are respectively fixed at both ends of the pipe under test, and the connecting ring is close to the mouth of the pipe under test and the inner wall. The first rubber ring and the inflatable ring are close to the outer wall of the pipe under test. After the inflatable ring is inflated, the first rubber ring and the inflatable ring are tightened, and the first rubber ring is used to tighten the inflatable ring. The friction between the ring and the pipe under test is fixed and the air tightness is ensured; the one-way valve is connected to the air supply end, and the air is pumped through the air pump and sent to the air storage tank. The gas in the gas storage tank is sent to the side pipeline through the gas transmission pipe, and is discharged from the gas outlet pipe to the outside world. The pressure sensor and the flow sensor are used to measure the flow parameters of the measured pipeline.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a pressure pipeline testing device provided by the present invention.

Figure 2 is a cross-sectional view of the gas pipeline provided by the present invention.

Fig. 3 is an enlarged view of the partial structure at A in Fig. 2 of the present invention.

Figure 4 is a cross-sectional view of the inflatable joint provided by the present invention.

Figure 5 is a cross-sectional view of the detection rod provided by the present invention.

1-Air supply component, 11-Air storage tank, 12-One-way valve, 13-Air pipe, 14-Air outlet pipe, 141-Pipe body, 142-Connecting ring, 143-First rubber ring, 144-Inflatable ring, 1441 -Elastic layer, 1442-fixed layer, 1443-inflation valve, 145-inflation tank, 2-detection component, 21-pressure sensor, 22-flow sensor, 23-pressure regulating valve, 24-pressure gauge, 3-inflation tube, 4-Inflatable joint, 41-cylinder, 42-spring, 43-sealing plate, 44-annular groove, 5-positioning component, 51-support frame, 52-cylinder, 53-push rod, 54-detection rod, 541 -Rod body, 542-connecting frame, 543-second rubber ring, 6-pipe under test.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and intended to explain the present invention, but are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not Any indication or implication that the referred device or element must have a specific orientation, be constructed and operate in a specific orientation should not be construed as a limitation on the invention. In addition, in the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically limited.

Referring to Figures 1 to 5, the present invention provides a pressure pipeline testing device. The pressure pipeline testing device includes a gas supply component 1 and a detection component 2. The gas supply component 1 includes a gas storage tank 11, a one-way valve 12, a transmission The gas pipe 13 and the gas outlet pipe 14 are detachably connected to the pipe 6 under test and are located at both ends of the pipe 6 under test. The gas storage tank 11 is connected to the gas pipe 11 . The air pipe 13 is detached and connected, and is located on the side of the air pipe 13 away from the tested pipe 6. The one-way valve 12 is installed on the gas storage tank 11 and is fixedly connected, and is located on a side of the gas storage tank 11. On the other side, the detection component 2 includes a pressure sensor 21 and a flow sensor 22. The pressure sensor 21 and the flow sensor 22 are installed on the outer wall of the air outlet pipe 14 in sequence; the air delivery pipe 13 and the air outlet pipe 14 Both include a tube body 141, a connecting ring 142, a first rubber ring 143 and an inflatable ring 144. The connecting ring 142 is fixedly connected to the tube body 141 and is located on one side of the tube body 141. The first rubber ring 143 is fixedly connected to the tube body 141. The ring 143 is fixedly connected to the connecting ring 142 and the inflatable ring 144 respectively, and is located between the connecting ring 142 and the inflatable ring 144. The connecting ring 142 is provided at the mouth of the measured pipe 6 , the first rubber ring 143 and the inflatable ring 144 are arranged on the outer wall of the measured pipe 6, the side of the first rubber ring 143 is provided with an inflatable groove 145, the inflatable groove 145 is connected with the inflatable groove 145. Internal connectivity of ring 144.

In this embodiment, the gas delivery pipe 13 and the gas outlet pipe 14 are respectively fixed at both ends of the pipe under test 6, and the connecting ring 142 is close to the mouth and inner wall of the pipe under test 6. , the first rubber ring 143 and the inflatable ring 144 are close to the outer wall of the measured pipe 6. After the inflatable ring 144 is inflated, the first rubber ring 143 and the inflated ring 144 are tightened. , using the friction between the first rubber ring 143 and the tested pipe 6 for fixation, and ensuring air tightness; connect the one-way valve 12 to the air supply end, pump air through an air pump, and deliver to the gas storage tank 11. The gas in the gas storage tank 11 is sent to the passive pipeline through the gas transmission pipe 13, and is discharged to the outside from the gas outlet pipe 14. The pressure sensor 21 and the The flow sensor 22 measures the flow parameters of the measured pipeline 6 .

Furthermore, the detection component 2 further includes a pressure regulating valve 23 and a pressure gauge 24 . The pressure regulating valve 23 and the pressure gauge 24 are sequentially installed on the outer wall of the gas transmission pipe 13 .

In this embodiment, the pressure regulating valve 23 is adjusted according to the pressure gauge 24 so that the flow rate of the measured pipeline 6 changes, thereby measuring the flow parameters of the measured pipeline 6 under different pressure conditions.

Further, the inflatable ring 144 includes an elastic layer 1441 and a fixed layer 1442. The elastic layer 1441 is movably connected to the pipe under test 6 and is close to the outer wall of the pipe under test 6. The fixed layer 1442 Fixedly connected to the elastic layer 1441 and located on the outer side wall of the elastic layer 1441; the inflatable ring 144 also includes an inflation valve 1443, which is fixedly connected to the fixed layer 1442 and located on the fixed layer 1442. The outer side wall of layer 1442; the pressure pipe testing device also includes an inflation tube 3, which is fixedly connected to the gas storage tank 11 and located on one side of the gas storage tank 11; the pressure pipeline testing device The device also includes an inflation joint 4, which is fixedly connected to the inflation tube 3 and located at an end of the inflation tube 3 away from the air tank 11.

In this embodiment, the inflation ring 144 is inflated or deflated through the inflation valve 1443; when connecting, the inflation joint 4 is connected to the inflation valve 1443, so that the inflation tube 3 is connected to the inflation valve 1443. The inflatable ring 144 is connected, and the inflatable ring 144 is inflated. The elastic coefficient of the elastic layer 1441 is relatively large. The first rubber ring 143 and the elastic layer 1441 expand toward the measured pipe 6 and are close to the measured pipe 6 . The pipe 6 under test is fixed while ensuring air tightness. After deflating using the inflation valve 1443, the pipe body 141 can be removed.

Further, the inflatable joint 4 includes a cylinder 41, a spring 42 and a sealing piece 43. The cylinder 41 is fixedly connected to the inflatable tube 3 and is located at the mouth of the inflated tube 3. The cylinder 41 An annular groove 44 is provided near one end of the inflatable tube 3 . The spring 42 is fixedly connected to the cylinder 41 and located inside the annular groove 44 . The sealing piece 43 is connected to the inflated tube 3 internal.

In this embodiment, when inflating, insert the valve port of the inflation valve 1443 into the cylinder 41, push the sealing piece 43 into the inside of the inflation tube 3, and the spring 42 is pulled After the inflation is completed, the inflation valve 1443 is pulled out, the spring 42 returns to its original state, and the inflation tube 3 is automatically closed.

Further, the pressure pipeline testing device also includes a positioning assembly 5. The positioning assembly 5 includes a support frame 51, a cylinder 52, a push rod 53 and a detection rod 54. The cylinder 52 is fixedly connected to the support frame 51, and Located on the side of the support frame 51, the push rod 53 is connected to the cylinder 52 and is located on the side of the cylinder 52. One end of the detection rod 54 is fixedly connected to the push rod 53. The other end of the detection rod 54 is movably connected to the air outlet pipe 14 and is located inside the air outlet pipe 14 .

In this embodiment, when an abnormality in the flow parameter is found, the positioning component 5 can be used to detect the abnormal position of the tested pipeline 6, the gas storage tank 11 is continuously ventilated, and the cylinder 52 is used to push the gas cylinder 52 at a constant speed. The detection rod 54 moves along the inner wall of the measured pipe 6 and observes the data of the flow sensor 22. When the value of the flow sensor 22 changes greatly, the position of the detection rod 54 at this time is The abnormal position of the pipeline 6 under test.

Further, the detection rod 54 includes a rod body 541, a connecting frame 542 and a second rubber ring 543. The rod body 541 is fixedly connected to the push rod 53 and is located inside the air outlet pipe 14. The connecting frame 542 The rubber ring is fixedly connected to the rod body 541 and located at an end of the rod body 541 away from the push rod 53 . The rubber ring is fixedly connected to the connecting frame 542 and is close to the inner wall of the air outlet pipe 14 .

In this embodiment, when the cylinder 52 pushes the rod 541 to move, the second rubber ring 543 moves along the inner wall of the pipe 6 under test, and the second rubber ring 543 moves along the inner wall of the pipe 6 under test. The ring 543 ensures the air tightness of the pipe 6 under test here. When the position of the air leakage is moved, the second rubber ring 543 blocks the position of the air leakage, and the value of the flow sensor 22 will be larger. Variety.

What is disclosed above is only a preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of the present invention. Those of ordinary skill in the art can understand all or part of the processes for implementing the above embodiments and according to the rights of the present invention. Equivalent changes to the requirements still fall within the scope of the invention.

Claims (6)

1. A pressure pipeline testing device, characterized in that the pressure pipeline testing device includes a gas supply component and a detection component. The gas supply component includes a gas storage tank, a one-way valve, a gas delivery pipe and an air outlet pipe. The gas delivery pipe and The gas outlet pipes are detachably connected to the pipeline under test, and are located at both ends of the pipeline under test. The gas storage tank is detachably connected to the gas transmission pipe, and is located away from the pipeline under test. On one side, the one-way valve is installed in a fixed connection with the gas storage tank and is located on one side of the gas storage tank. The detection component includes a pressure sensor and a flow sensor. The outer wall of the air outlet pipe is in turn installed with the pressure sensor and the flow sensor; The gas delivery pipe and the gas outlet pipe each include a pipe body, a connecting ring, a first rubber ring and an inflatable ring. The connecting ring is fixedly connected to the pipe body and is located on one side of the pipe body. A rubber ring is fixedly connected to the connecting ring and the inflatable ring respectively, and is located between the connecting ring and the inflatable ring. The connecting ring is arranged at the mouth of the pipe under test, and the first The rubber ring and the inflatable ring are arranged on the outer wall of the pipe under test. An inflatable groove is provided on the side of the first rubber ring. The inflatable groove is connected to the outer wall of the measured pipe. The interior of the inflatable ring is connected; The pressure pipe testing device also includes a positioning component, which includes a support frame, a cylinder, a push rod and a detection rod. The cylinder is fixedly connected to the support frame and is located at the top of the support frame. The push rod is connected to the cylinder and is located on the side of the cylinder. One end of the detection rod is fixedly connected to the push rod, and the other end of the detection rod is movably connected to the air outlet pipe and located on the side of the cylinder. The inside of the outlet pipe; The detection rod includes a rod body, a connecting frame and a second rubber ring. The rod body is fixedly connected to the push rod and located inside the air outlet pipe. The connecting frame is fixedly connected to the rod body and located inside the air outlet pipe. One end of the rod body is away from the push rod, and the rubber ring is fixedly connected to the connecting frame and close to the outlet. The inner wall of the trachea. 2. A pressure pipeline testing device according to claim 1, characterized in that the detection component further includes a pressure regulating valve and a pressure gauge, and the pressure regulating valve and the pressure gauge are installed in the gas pipeline in sequence. the lateral wall. 3. A pressure pipeline testing device according to claim 2, characterized in that the inflatable ring includes an elastic layer and a fixed layer, the elastic layer is movably connected to the tested pipeline and is close to the tested pipeline. The outer wall of the measuring pipe is measured, and the fixed layer is fixedly connected to the elastic layer and located on the outer wall of the elastic layer. 4. A pressure pipeline testing device according to claim 3, characterized in that the inflatable ring further includes an inflatable valve, the inflatable valve is fixedly connected to the fixed layer and is located on the outer side wall of the fixed layer. . 5. A pressure pipe testing device according to claim 4, characterized in that the pressure pipe testing device further includes an inflatable tube, the inflatable tube is fixedly connected to the gas storage tank and is located in the gas storage tank. side of the can. 6. A pressure pipe testing device according to claim 5, characterized in that the pressure pipe testing device further includes an inflatable joint, the inflatable joint is fixedly connected to the inflatable pipe and is located away from the inflated pipe. One end of the gas tank.