Pipeline pressure testing device

Abstract

The invention relates to the technical field of pipeline detection equipment, and discloses a pipeline pressure test device which comprises a mounting mechanism, an inflation mechanism is mounted at the top end of the mounting mechanism, the mounting mechanism comprises a base, the inflation mechanism is connected with a main pressure detection mechanism and a connecting mechanism, and the inflation mechanism comprises two three-way control valves which are symmetrically arranged up and down. And a first connecting pipe is in threaded connection between connectors at the opposite ends of the two three-way control valves. By adopting the design of a reinforced safety system, a multi-stage pressure safety protection structure is arranged on the whole device, namely, a plurality of safety valves are arranged at the pipeline of the device, and the safety valves are controlled by combining an integral pressure detection structure to automatically cut off the pipeline, namely, when the pressure exceeds a set safety value, a power supply of a pressure pump can be automatically cut off; pressure is released through the safety valve, and safety of the pressure testing process is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline detection equipment, in particular to a pipeline pressure testing device. Background Art

[0002] At present, after the pipeline is assembled and installed, it is necessary to carry out pipeline pressure testing, that is, to conduct a comprehensive inspection of the pipeline system, including whether the pipeline connection is firm (such as whether there are defects in the welding, whether the flange connection is tight, whether the threaded connection is tightened), whether the direction and slope of the pipeline meet the design requirements, etc., and thus a pipeline pressure testing device is needed.

[0003] The existing pipeline pressure testing device still has the following problems when in use: when using an electric pressure pump to inflate and pressurize the pipeline, since most of them use a single valve to control the opening and closing of the detection pipeline, after long-term use, there is a certain risk of leakage of its air tightness, and thus there are certain safety risks, such as improper pressure control leading to pipeline rupture, causing gas leakage or even explosion and other serious accidents. At the same time, its accuracy is affected by environmental factors, resulting in inaccurate pressure readings, affecting the pressure test accuracy. Summary of the invention

[0004] 1. Technical problems to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a pipeline pressure testing device, which solves the problems raised by the background technology.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pipeline pressure test device, comprising a mounting mechanism, an inflation mechanism is installed on the top of the mounting mechanism, the mounting mechanism includes a base, the inflation mechanism is connected to a main pressure detection mechanism and a connection mechanism, the inflation mechanism includes two three-way control valves arranged in an upper and lower symmetrical shape, a first connecting pipe is threadedly connected between the joints at the opposite ends of the two three-way control valves, a second connecting pipe is threadedly connected at each joint at one end of the two three-way control valves, a pressure pump is threadedly installed at the joint at one end of the second connecting pipe above, the overall enhanced safety system design is adopted, a multi-level pressure safety protection structure is arranged in the overall device, that is, a plurality of safety valves, that is, a plurality of control valves, including a three-way control valve and a branch control valve, are installed at the pipeline of the device, and combined with the overall pressure detection structure, that is, its long probe type digital pressure sensor and the auxiliary digital pressure sensor can be connected to the test terminal equipment of the pipeline pressure test, and the safety valve is controlled by the test terminal equipment to automatically cut off the pipeline, that is, when the pressure exceeds the set safety value, the power supply of the pressure pump 25 can be automatically cut off, and the pressure is released through the safety valve to ensure the safety of the pressure test process.

[0008] As a further solution of the present invention: a handle is fixedly connected to the middle of each of the front and rear ends of the base, a mounting hole is opened in the middle of each of the two sides of the top of the base, and two support seats are symmetrically fixedly connected to the middle of the top of the base, the top of the support seat on one side is fixedly connected to the mounting sleeve below, and the top of the support seat on the other side is fixedly connected to the auxiliary digital pressure sensor. The overall device adopts an integrated convenient structural design, and the overall device is provided with a base, and a handle is fixedly connected to each of the front and rear ends of the base. The two handles can be held to lift the overall device to move, which reduces the difficulty of installation and layout of the overall device and improves the efficiency of on-site installation and operation.

[0009] As a further solution of the present invention: the main pressure detection mechanism also includes an installation sleeve fixedly sleeved in the middle of the outer side walls of the two second connecting tubes, and the same connecting frame is fixedly connected between the two installation sleeves. A notch groove is opened in the middle of one end of the connecting frame, and a data processing host is fixedly installed in the notch groove. The data port at one end of the data processing host is connected to the data port at one end of the long probe digital pressure sensor through a data cable. By expanding the versatility of the device as a whole, the connecting part of the device is improved, and replaceable joints and adapter components are designed to enable it to be easily connected to different types of pipelines. At the same time, the output parameter range and pressure test process settings of the pressure pump can be adjusted to meet the pressure test requirements of various pipelines.

[0010] As a further solution of the present invention: the two three-way control valves are both dual-mode valve bodies and include a manual drive component and an electric drive component. The three-way control valve can be driven and adjusted by the test terminal device, and can also be adjusted manually by holding the handle. The auxiliary digital pressure sensor and the long probe digital pressure sensor are both equipped with a built-in wireless data transmitter, which can be wirelessly connected to the test terminal device and transmit pressure detection data to it.

[0011] As a further solution of the present invention: the connecting mechanism includes a five-way joint threadedly connected to the joint at the other end of the third connecting pipe, and the other end of the five-way joint is provided with four joints equidistant from top to bottom, and branch control valves are fixedly installed at the four joints, and the four branch control valves can control the opening and closing of each connection detection branch.

[0012] As a further solution of the present invention: the joints at the other ends of the four branch control valves are respectively threadedly installed with a first connector, a second connector, a third connector and a fourth connector from top to bottom. The first connector, the second connector, the third connector and the fourth connector are of different models and can be adapted to different pipes for connection and pressure testing.

[0013] As a further solution of the present invention: a mechanical pressure gauge is threadedly connected to the joint at the other end of the three-way control valve at the top, a third connecting pipe is threadedly connected to the joint at the other end of the three-way control valve at the bottom, an auxiliary digital pressure sensor is fixedly installed in the middle of the third connecting pipe, and the main pressure detection mechanism includes a long probe digital pressure sensor threadedly connected to the joint at one end of the second connecting pipe at the bottom. The pressure is measured by improving the accuracy and stability of the pressure gauge as a whole, that is, a long probe digital pressure sensor with strong anti-interference ability is used to replace the traditional U-shaped pressure gauge. In addition, an auxiliary digital pressure sensor is provided, and a mechanical pressure sensor is provided at the inflation mechanism. Pressure detection can be performed at multiple locations of the pipeline of the overall pressure measuring device. Combined with the pressure detection data at multiple locations, the pressure data of the long probe digital pressure sensor under different environments are compensated and corrected, thereby improving the accuracy and stability of the pressure readings.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by adopting an enhanced safety system design, a multi-level pressure safety protection structure is set in the overall device, that is, a plurality of safety valves are installed on the pipeline of the device, and the safety valve is controlled in combination with the overall pressure detection structure to automatically cut off the pipeline. That is, when the pressure exceeds the set safety value, the power supply of the pressure pump can be automatically cut off, and the pressure can be released through the safety valve to ensure the safety of the pressure test process.

[0015] 2. In the present invention, the accuracy and stability of the pressure gauge are improved, that is, a long probe digital pressure sensor with strong anti-interference ability is used to replace the traditional U-shaped pressure gauge for pressure measurement. In addition, an auxiliary digital pressure sensor is provided. At the same time, a mechanical pressure sensor is provided at the inflation mechanism. The pressure detection of multiple locations of the pipeline of the overall pressure measuring device can be carried out. Combined with the pressure detection data at multiple locations, the pressure data of the long probe digital pressure sensor under different environments are compensated and corrected, thereby improving the accuracy and stability of the pressure readings.

[0016] 3. In the present invention, by expanding the versatility of the device, the connecting part of the device is improved, and replaceable joints and adapter components are designed so that it can be easily connected to different types of pipelines. At the same time, the output parameter range and pressure test process settings of the pressure pump can be adjusted so that it can meet the pressure test requirements of various pipelines.

[0017] 4. In the present invention, an integrated and convenient structural design is adopted as a whole. The overall device is provided with a base, and a handle is fixedly connected to the front and rear ends of the base. The two handles can be held to lift the overall device for movement, which reduces the difficulty of installation and layout of the overall device and improves the efficiency of on-site installation and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall three-dimensional Figure 1 ; Figure 2 The overall three-dimensional structure of the present invention Figure 2 ; Figure 3 It is a three-dimensional diagram of the installation mechanism of the present invention; Figure 4 A three-dimensional diagram of the inflation mechanism of the present invention; Figure 5 It is a three-dimensional diagram of the main pressure detection mechanism of the present invention; Figure 6 It is a three-dimensional diagram of the connecting mechanism of the present invention.

[0019] In the figure: 1. installation mechanism; 2. inflation mechanism; 3. main pressure detection mechanism; 4. connection mechanism; 11. base; 12. support seat; 13. installation hole; 14. handle; 21. three-way control valve; 22. first connecting pipe; 23. mechanical pressure gauge; 24. second connecting pipe; 25. pressure pump; 26. third connecting pipe; 27. auxiliary digital pressure sensor; 31. installation sleeve; 32. connecting frame; 33. data processing host; 34. long probe digital pressure sensor; 35. data line; 41. five-way connector; 42. branch control valve; 43. first connector; 44. second connector; 45. third connector; 46. fourth connector. DETAILED DESCRIPTION

[0020] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", 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 do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figures 1 to 6 In an embodiment of the present invention, a pipeline pressure test device includes a mounting mechanism 1, an air charging mechanism 2 is mounted on the top of the mounting mechanism 1, the mounting mechanism 1 includes a base 11, the air charging mechanism 2 is connected to a main pressure detection mechanism 3 and a connecting mechanism 4, the air charging mechanism 2 includes two three-way control valves 21 arranged symmetrically in an upper and lower shape, a first connecting pipe 22 is threadedly connected between the joints at one end of the two three-way control valves 21, a second connecting pipe 24 is threadedly connected at each joint at one end of the two three-way control valves 21, a pressure pump 25 is threadedly mounted at the joint at one end of the upper second connecting pipe 24, and the whole adopts The safety system design is strengthened, and a multi-level pressure safety protection structure is set in the overall device, that is, multiple safety valves, that is, multiple control valves, including a three-way control valve 21 and a branch control valve 42 are installed on the pipeline of the device, and combined with the overall pressure detection structure, that is, its long probe digital pressure sensor 34 and auxiliary digital pressure sensor 27 can be connected to the test terminal equipment for pipeline pressure testing. The safety valve is controlled by the test terminal equipment, and the pipeline can be automatically cut off. That is, when the pressure exceeds the set safety value, the power supply of the pressure pump 25 can be automatically cut off, and the pressure is released through the safety valve to ensure the safety of the pressure test process.

[0024] A handle 14 is fixedly connected to the middle of the front and rear ends of the base 11, and a mounting hole 13 is opened in the middle of both sides of the top of the base 11. Two support seats 12 are symmetrically fixedly connected to the middle of the top of the base 11. The top of the support seat 12 on one side is fixedly connected to the lower mounting sleeve 31, and the top of the support seat 12 on the other side is fixedly connected to the auxiliary digital pressure sensor 27. The overall device adopts an integrated convenient structural design. The overall device is provided with a base 11, and a handle 14 is fixedly connected to the front and rear ends of the base 11. The two handles 14 can be held to lift the overall device to move, which reduces the difficulty of installation and layout of the overall device and improves the efficiency of on-site installation and operation.

[0025] The main pressure detection mechanism 3 also includes an installation sleeve 31 fixedly sleeved in the middle of the outer side walls of the two second connecting tubes 24, and the same connecting frame 32 is fixedly connected between the two installation sleeves 31. A notch groove is opened in the middle of one end of the connecting frame 32, and a data processing host 33 is fixedly installed in the notch groove. The data port at one end of the data processing host 33 is connected to the data port at one end of the long probe digital pressure sensor 34 through a data line 35. By expanding the versatility of the device as a whole, the connecting part of the device is improved, and replaceable joints and adapter components are designed to enable it to be easily connected to different types of pipelines. At the same time, the output parameter range and pressure test process settings of the pressure pump 25 can be adjusted to enable it to meet the pressure test requirements of various pipelines.

[0026] Both three-way control valves 21 are dual-mode valve bodies and include a manual drive component and an electric drive component. The three-way control valve 21 can be driven and adjusted via the test terminal device, and can also be adjusted manually by holding the handle. The auxiliary digital pressure sensor 27 and the long probe digital pressure sensor 34 are both equipped with built-in wireless data transmitters, which can be wirelessly connected to the test terminal device and transmit pressure detection data to it.

[0027] The connecting mechanism 4 includes a five-way joint 41 which is threadedly connected to the joint at the other end of the third connecting pipe 26. The other end of the five-way joint 41 is provided with four joints equidistantly from top to bottom, and branch control valves 42 are fixedly installed at the four joints. The four branch control valves 42 can control the opening and closing of each connection detection branch.

[0028] The joints at the other ends of the four branch control valves 42 are respectively threadedly installed with the first connector 43, the second connector 44, the third connector 45 and the fourth connector 46 from top to bottom. The first connector 43, the second connector 44, the third connector 45 and the fourth connector 46 are of different models and can be adapted to different pipes for connection and pressure testing.

[0029] A mechanical pressure gauge 23 is threadedly connected to the joint at the other end of the upper three-way control valve 21, and a third connecting pipe 26 is threadedly connected to the joint at the other end of the lower three-way control valve 21. An auxiliary digital pressure sensor 27 is fixedly installed in the middle of the third connecting pipe 26. The main pressure detection mechanism 3 includes a long probe digital pressure sensor 34 threadedly connected to the joint at one end of the lower second connecting pipe 24. The pressure measurement is performed by improving the accuracy and stability of the pressure gauge as a whole, that is, a long probe digital pressure sensor 34 with strong anti-interference ability is used to replace the traditional U-shaped pressure gauge. In addition, an auxiliary digital pressure sensor 27 is provided, and a mechanical pressure sensor is provided at the inflation mechanism 2. Pressure detection can be performed at multiple locations of the overall pressure measuring device pipeline. Combined with the pressure detection data at multiple locations, the pressure data of the long probe digital pressure sensor 34 under different environments are compensated and corrected to improve the accuracy and stability of the pressure readings.

[0030] The working principle of the present invention is: when conducting pipeline pressure testing, a suitable connector can be selected to connect the pipeline to be tested, and inflate through the pressure pump 25. After the gas is filled into the pipeline, the gas molecules move rapidly in the pipeline and collide with the inner wall of the pipeline to generate pressure. The overall enhanced safety system design is adopted, and a multi-level pressure safety protection structure is set in the overall device, that is, multiple safety valves, that is, multiple control valves, including a three-way control valve 21 and a branch control valve 42 are installed at the pipeline of the device, and combined with the overall pressure detection structure, that is, its long probe type digital pressure sensor 34 and the auxiliary digital pressure sensor 27 can be connected to the test terminal equipment of the pipeline pressure test, and the safety valve can be controlled through the test terminal equipment to automatically cut off the pipeline, that is, when the pressure exceeds the set safety value, the power supply of the pressure pump 25 can be automatically cut off, and the pressure is released through the safety valve to ensure the safety of the pressure test process. At the same time, the overall pressure gauge accuracy and stability are improved, that is, the long probe type digital pressure sensor 34 with strong anti-interference ability is adopted to replace the traditional U A shaped pressure gauge is used to measure the pressure. In addition, an auxiliary digital pressure sensor 27 is provided. At the same time, a mechanical pressure sensor is provided at the inflation mechanism 2, which can detect the pressure at multiple locations of the pipeline of the overall pressure measuring device. Combined with the pressure detection data at multiple locations, the pressure data of the long probe digital pressure sensor 34 under different environments is compensated and corrected to improve the accuracy and stability of the pressure readings.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pipeline pressure testing device, comprising a mounting mechanism (1), wherein an inflation mechanism (2) is mounted on the top of the mounting mechanism (1); Features: The mounting mechanism (1) comprises a base (11), a handle (14) being fixedly connected to the middle of each of the front and rear ends of the base (11), and the inflation mechanism (2) is connected to a main pressure detection mechanism (3) and a connection mechanism (4); The inflation mechanism (2) comprises two three-way control valves (21) arranged in an upper and lower symmetrical shape, a first connecting pipe (22) being threadedly connected between the joints at one end of the two three-way control valves (21) facing each other, and a second connecting pipe (24) being threadedly connected to each joint at one end of the two three-way control valves (21); A mechanical pressure gauge (23) is threadedly connected to the joint at the other end of the upper three-way control valve (21), and a third connecting pipe (26) is threadedly connected to the joint at the other end of the lower three-way control valve (21), and an auxiliary digital pressure sensor (27) is fixedly installed in the middle of the third connecting pipe (26); The main pressure detection mechanism (3) comprises a long probe type digital pressure sensor (34) threadedly connected to a joint at one end of a lower second connecting tube (24), and a pressure pump (25) threadedly mounted to a joint at one end of the upper second connecting tube (24).

2. A pipeline pressure testing device according to claim 1, characterized in that: The main pressure detection mechanism (3) further comprises a mounting sleeve (31) fixedly sleeved at the middle of the outer side walls of the two second connecting pipes (24), and a same connecting frame (32) is fixedly connected between the two mounting sleeves (31).

3. A pipeline pressure testing device according to claim 2, characterized in that: A notch is provided in the middle of one end of the connection frame (32), and a data processing host (33) is fixedly installed in the notch. A data port at one end of the data processing host (33) is connected to a data port at one end of the long probe type digital pressure sensor (34) via a data line (35).

4. A pipeline pressure testing device according to claim 1, characterized in that: A mounting hole (13) is respectively provided in the middle of both sides of the top of the base (11), and two supporting seats (12) are symmetrically fixedly connected to the middle of the top of the base (11).

5. A pipeline pressure testing device according to claim 4, characterized in that: The top end of the support seat (12) on one side is fixedly connected to a mounting sleeve (31) below, and the top end of the support seat (12) on the other side is fixedly connected to an auxiliary digital pressure sensor (27).

6. A pipeline pressure testing device according to claim 1, characterized in that: The two three-way control valves (21) are both dual-mode valve bodies and include a manual drive component and an electric drive component. The auxiliary digital pressure sensor (27) and the long probe digital pressure sensor (34) are both equipped with a built-in wireless data transmitter.

7. A pipeline pressure testing device according to claim 1, characterized in that: The connection mechanism (4) comprises a five-way joint (41) threadedly connected to a joint at the other end of the third connection pipe (26).

8. A pipeline pressure testing device according to claim 7, characterized in that: The other end of the five-way joint (41) is provided with four joints at equal distances from top to bottom, and branch control valves (42) are fixedly installed at the four joints.

9. A pipeline pressure testing device according to claim 8, characterized in that: The joints at the other ends of the four branch control valves (42) are respectively threadedly mounted with a first connector (43), a second connector (44), a third connector (45) and a fourth connector (46) from top to bottom.

10. A pipeline pressure testing device according to claim 9, characterized in that: The first connector (43), the second connector (44), the third connector (45) and the fourth connector (46) are of different models.

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