Sensor for detecting pressure of liquid in pipeline

Abstract

The utility model belongs to the technical field of pressure detection, and particularly relates to a sensor for detecting liquid pressure of a pipeline. Comprising a pipeline body used for ensuring the flowing track of liquid; the pressure sensor body is arranged on the upper side in the pipeline body and used for detecting the pressure of liquid in the pipeline body; the damping mechanism is arranged on the outer side of the pipeline body and used for reducing vibration force transmitted to the pipeline body; the damping mechanism comprises mounting frames located at the left end and the right end of the pipeline body; the sliding rods are arranged on the mounting frame in a sliding mode, and the multiple sliding rods are evenly distributed in the circumferential direction of the mounting frame at intervals; the shock pads are arranged on the sliding rods and make contact with the outer surface of the pipeline body; the damping spring is arranged on the sliding rod in a sleeving manner and is arranged between the damping pad and the mounting frame; and the pull block is arranged on the sliding rod. The utility model provides the sensor for detecting the pressure of the liquid in the pipeline, which can absorb part of energy so as to reduce the vibration force transmitted to the pipeline.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure detection, in particular to a sensor for detecting pipeline liquid pressure. Background Art

[0002] Pipeline pressure sensor is the most commonly used pressure sensor in industrial practice. It is widely used in various industrial automatic control environments, involving many industries such as oil pipelines, water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, military industry, petrochemicals, oil wells, electric power, ships, machine tools, hydraulic machinery, etc.

[0003] The utility model patent with publication number CN111928995A discloses a pressure sensor for detecting pipeline liquid pressure, including a tube body, a detachable conductive tube is fixedly arranged on the upper side of the tube body, and a detachable sensor body for pressure detection is fixedly arranged on the upper end of the conductive tube. When installing or disassembling the sensor body, the wrench is removed and one end of the wrench is inserted into the wrench slot to achieve the locking or disassembly of the conductive tube, and then the sensor body is inserted into the inner side of the upper port of the conductive tube through the plug to achieve fixed installation, making it more convenient to install or disassemble, without carrying additional installation tools, the diaphragm at the lower end of the conductive tube squeezes the movable rod under the liquid pressure, and the movable rod squeezes the diaphragm on the upper side to transmit the pressure to the detection head to achieve pressure detection, avoiding the problem of contamination of the detection head due to direct contact with the liquid, thereby affecting the accuracy of the detection data.

[0004] Although this technology can be installed or disassembled without carrying additional installation tools and is easy to use, pipe jitter often occurs when measuring liquid pressure. Pipe jitter can cause rapid fluctuations in liquid pressure, causing the pressure sensor to indicate rapid jitters when measuring liquid pressure, making it impossible to accurately read the pressure value. Over time, the pressure gauge is likely to lose accuracy and be damaged. Utility Model Content

[0005] The utility model aims to solve the above-mentioned technical problems and provide a sensor for detecting the liquid pressure in a pipeline, which absorbs part of the energy and reduces the vibration force transmitted to the pipeline.

[0006] In view of this, the utility model provides a sensor for detecting the pressure of a pipeline liquid, comprising:

[0007] The pipe body is used to ensure the trajectory of its liquid flow;

[0008] The pressure sensor body is arranged on the upper side of the pipeline body and is used to detect the pressure of the liquid in the pipeline body;

[0009] A shock absorbing mechanism is arranged outside the pipeline body to reduce the vibration force transmitted to the pipeline body;

[0010] The shock absorbing mechanism comprises:

[0011] The mounting bracket is located at the left and right ends of the pipeline body;

[0012] A slide bar is slidably arranged on the mounting frame, and there are a plurality of slide bars, which are evenly spaced and distributed along the circumferential direction of the mounting frame;

[0013] A shock-absorbing pad is arranged on the slide bar, and the shock-absorbing pad is in contact with the outer surface of the pipeline body;

[0014] A shock absorbing spring is sleeved on the slide bar and arranged between the shock absorbing pad and the mounting frame;

[0015] The pulling block is arranged on the sliding rod.

[0016] In the above technical solution, further, a sponge pad in contact with the pipeline body is provided on the inner side of the shock-absorbing pad.

[0017] In any of the above technical solutions, further, positioning holes for fixed installation are provided on both the front and rear sides of the mounting frame, and bolts are passed through the positioning holes.

[0018] In any of the above technical solutions, further, the pressure sensor body includes:

[0019] A detection head is arranged inside the pipeline body;

[0020] Ports are arranged at the left and right ends of the detection head, and the two ports are connected;

[0021] A pressure sensor is arranged inside the detection head;

[0022] a data processing unit, electrically connected to the pressure sensor, and configured to receive and process an electrical signal from the pressure sensor;

[0023] a communication module, connected to the data processing unit, for transmitting the processed data to an external device;

[0024] The display module is electrically connected to the communication module and is used to display the detected data.

[0025] In any of the above technical solutions, further, the detection head is made of waterproof material, high temperature resistant material and anti-corrosion material.

[0026] In any of the above technical solutions, further, the data processing unit adopts a microprocessor, an integrated circuit or a programmable logic controller.

[0027] In any of the above technical solutions, further, a disassembly and assembly mechanism is provided on the pipeline body to facilitate the disassembly and installation of the pressure sensor body, and the disassembly and assembly mechanism includes:

[0028] A fixing block is arranged at the upper end of the pipeline body;

[0029] A fastening screw is threadedly arranged between the fixing block and the pipe body, and the fastening screw is connected to the detection head;

[0030] A connecting rod, arranged at the upper end of the fastening screw;

[0031] The sealing gasket is arranged on the connecting rod and contacts the top surface of the fixing block. The sealing gasket is used to prevent the liquid in the pipeline body from flowing out from the thread of the fastening screw.

[0032] The beneficial effects of the utility model are:

[0033] 1. The shock-absorbing spring can buffer the vibration force and protect the pipeline body and the pressure sensor body from damage. The shock-absorbing pad absorbs and disperses the energy of external vibration, reducing the degree of its transmission to the pipeline body, effectively reducing the interference of external vibration on the pressure sensor body, and ensuring that the sensor can work stably and accurately detect changes in liquid pressure;

[0034] 2. As part of the shock-absorbing pad, the sponge pad effectively protects the sensor from external vibration by increasing the contact area and providing additional cushioning effect, ensuring that the sensor can work reliably and provide accurate pressure detection;

[0035] 3. The detection head contacts the liquid in the pipeline, converts the pressure change into an electrical signal, and after being processed by the data processing unit, transmits it to the external device through the communication module, and finally displays it to the user through the display module, thus realizing the monitoring and display of the pipeline liquid pressure;

[0036] 4. The user twists the connecting rod to drive the fastening screw to rotate. During the rotation, the fastening screw moves outside the pipe body and drives the detection head to move, so that the detection head is removed from the pipe body. Through the effect of the sealing gasket, the liquid in the pipe body will not flow out from the thread of the fastening screw, preventing leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0038] Figure 2 It is a three-dimensional structural schematic diagram of the shock absorbing mechanism of the utility model;

[0039] Figure 3 It is a partial three-dimensional structural schematic diagram of the utility model;

[0040] Figure 4 It is a three-dimensional structural schematic diagram of the disassembly and assembly mechanism of the utility model;

[0041] Figure 5 This is a system framework diagram of the pressure sensor body of the utility model;

[0042] The reference numerals in the figure are: 1. pipeline body; 2. pressure sensor body; 21. detection head; 22. port; 23. pressure sensor; 24. data processing unit; 25. communication module; 26. display module; 3. shock absorbing mechanism; 31. mounting frame; 32. slide bar; 33. shock absorbing pad; 34. shock absorbing spring; 35. pull block; 4. sponge pad; 5. positioning hole; 51. bolt; 6. disassembly and assembly mechanism; 61. fixing block; 62. fastening screw; 63. connecting rod; 64. sealing gasket. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0044] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0045] Embodiment 1:

[0046] like Figure 1-Figure 3 As shown, this embodiment provides a sensor for detecting pipeline liquid pressure, including:

[0047] The pipeline body 1 is used to ensure the trajectory of the liquid flow;

[0048] The pressure sensor body 2 is arranged on the upper side of the pipeline body 1 and is used to detect the pressure of the liquid in the pipeline body 1;

[0049] The shock absorbing mechanism 3 is arranged outside the pipeline body 1 and is used to reduce the vibration force transmitted to the pipeline body 1;

[0050] The shock absorbing mechanism 3 comprises:

[0051] The mounting frame 31 is located at the left and right ends of the pipeline body 1;

[0052] A slide bar 32 is slidably disposed on the mounting frame 31. There are a plurality of slide bars 32, which are evenly spaced and distributed along the circumferential direction of the mounting frame 31.

[0053] A shock-absorbing pad 33 is arranged on the slide bar 32, and the shock-absorbing pad 33 is in contact with the outer surface of the pipeline body 1;

[0054] A shock absorbing spring 34 is sleeved on the slide bar 32 and arranged between the shock absorbing pad 33 and the mounting frame 31;

[0055] The pulling block 35 is disposed on the sliding rod 32 .

[0056] In this technical solution, the pipeline body 1 is the main part of the sensor, which ensures the flow trajectory of the liquid in the pipeline body 1 and provides support for installing the pressure sensor and the shock absorbing mechanism 3. The pressure sensor body 2 is located on the upper side of the pipeline body 1 and is used to detect the pressure change of the liquid in the pipeline. When the liquid pressure in the pipeline changes, the pressure sensor body 2 will generate a corresponding electrical signal. The shock absorbing mechanism 3 is arranged on the outside of the pipeline body 1, and its main function is to reduce the impact of external vibration on the pipeline and ensure that the pressure sensor can accurately detect the pressure change of the liquid in the pipeline. The mounting frame 31 is located at the left and right ends of the pipeline body 1, providing support and fixation for the shock absorbing mechanism 3. The sliding rod 32 is slidably arranged on the mounting frame 31 and is evenly spaced. The function of the sliding rod 32 is to provide support for the shock absorbing pad 33 and the shock absorbing spring 34, and allow them to make corresponding displacements when the pipeline is subjected to external vibration. The shock absorbing pad 33 is arranged on the sliding rod 32 and contacts the outer surface of the pipeline body 1. The purpose of the shock absorbing pad 33 is to absorb and disperse the energy of the external vibration and reduce the degree of its transmission to the pipeline body 1. The shock absorbing spring 34 is sleeved on the sliding rod 32 and arranged between the shock absorbing pad 33 and the mounting frame 31. The function of the shock absorbing spring 34 is to provide elastic support. When the pipeline is subjected to external vibration, the shock absorbing spring 34 can buffer the vibration force and protect the pipeline and the pressure sensor from damage.

[0057] When the liquid pressure in the pipeline changes, the pressure sensor body 2 will sense these changes and transmit the corresponding signals to the data processing unit 24 for processing. When the pipeline body 1 is subjected to external shock or vibration, the pipeline body 1 squeezes the shock pad 33, and the shock pad 33 drives the slide bar 32 to move outward along the mounting frame 31, and the shock spring 34 is compressed. Then, under the reset action of the shock spring 34, the shock pad 33 drives the slide bar 32 to move inward and reset. The shock spring 34 can buffer the vibration force and protect the pipeline body 1 and the pressure sensor body 2 from damage. The shock pad 33 absorbs and disperses the energy of the external vibration, reducing the degree of its transmission to the pipeline body 1, effectively reducing the interference of the external vibration on the pressure sensor body 2, and ensuring that the sensor can work stably and accurately detect the change of liquid pressure.

[0058] Embodiment 2:

[0059] This embodiment provides a sensor for detecting pipeline liquid pressure, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0060] like Figure 3 As shown, in this embodiment, it is optimized that a sponge pad 4 in contact with the pipeline body 1 is provided on the inner side of the shock-absorbing pad 33 .

[0061] In the present technical solution, the sponge pad 4 is located on the inner side of the shock-absorbing pad 33 and contacts the pipe body 1. The function of the sponge pad 4 is to increase the contact area between the sensor and the pipe body 1 and provide additional buffering and isolation effects. When the pipe body 1 is subjected to external shock or vibration, these vibration forces will be transmitted to the sensor and the pipe body 1 through the shock-absorbing mechanism 3. The sponge pad 4, as a part of the shock-absorbing pad 33, can absorb and disperse part of the vibration energy to prevent them from being directly transmitted to the pipe body 1. Through contact with the pipe body 1, the sponge pad 4 provides additional damping and buffering effects, effectively reducing the interference of external vibrations on the sensor. The sponge pad 4 ensures that the sensor can work stably and accurately detect the pressure changes of the liquid in the pipe without being affected by the external environment. As a part of the shock-absorbing pad 33, the sponge pad 4 effectively protects the sensor from external vibration interference by increasing the contact area and providing additional buffering effects, ensuring that the sensor can work reliably and provide accurate pressure detection.

[0062] like Figure 1 and Figure 2 As shown, in this embodiment, it is optimized that both the front and rear sides of the mounting frame 31 are provided with positioning holes 5 for fixed installation, and bolts 51 are passed through the positioning holes 5.

[0063] In the present technical solution, when it is necessary to use a sensor for detecting the liquid pressure of the pipeline body 1, the mounting bracket 31 is first placed on the area where it needs to be installed, and the positioning hole 5 is penetrated by the bolt 51, so that the mounting bracket 31 is fixedly installed in the specified position. The fixation of the mounting bracket 31 makes the support of the shock absorbing mechanism 3 more stable. When it needs to be disassembled, the bolt 51 is unscrewed from the positioning hole 5 to disassemble it.

[0064] Embodiment 3:

[0065] This embodiment provides a sensor for detecting pipeline liquid pressure, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0066] like Figure 4 and Figure 5 As shown, in this embodiment, the pressure sensor body 2 is optimized to include:

[0067] The detection head 21 is arranged inside the pipeline body 1;

[0068] The ports 22 are arranged at the left and right ends of the detection head 21, and the two ports 22 are connected;

[0069] The pressure sensor 23 is disposed inside the detection head 21;

[0070] The data processing unit 24 is electrically connected to the pressure sensor 23 and is used to receive and process the electrical signal from the pressure sensor 23;

[0071] A communication module 25, connected to the data processing unit 24, for transmitting the processed data to an external device;

[0072] The display module 26 is electrically connected to the communication module 25 and is used to display the detected data.

[0073] In the present technical solution, the detection head 21 is located inside the pipeline body 1, responsible for directly contacting the liquid in the pipeline and sensing the pressure change of the liquid. The ports 22 are located at the left and right ends of the detection head 21 and are connected to each other. Their function is to ensure that the liquid can smoothly enter the detection head 21, so that the pressure sensor 23 can accurately measure the liquid pressure in the pipeline. The pressure sensor 23 is arranged inside the detection head 21, responsible for converting the pressure change of the liquid in the pipeline into a corresponding electrical signal. The data processing unit 24 is electrically connected to the pressure sensor 23, receiving and processing the electrical signal from the pressure sensor 23. The data processing unit 24 is responsible for processing the received signal, which may include signal amplification, filtering, digitization and other processing processes to ensure accurate acquisition of liquid pressure information. The communication module 25 is connected to the data processing unit 24, and is used to transmit the processed data to an external device, such as a monitoring system, a computer or a smart phone. The communication module 25 can transmit the data wirelessly or wired to realize remote monitoring and control of the pipeline liquid pressure. The display module 26 is electrically connected to the communication module 25, responsible for displaying the detected data in a visual manner for users to view and analyze. The display module 26 may include a digital display screen, an indicator light or other forms of display devices for intuitively displaying real-time information on the pipeline liquid pressure.

[0074] When working, the detection head 21 contacts the liquid in the pipeline, converts the pressure change into an electrical signal, and after being processed by the data processing unit 24, it is transmitted to the external device through the communication module 25, and finally displayed to the user by the display module 26, so as to realize the monitoring and display of the pipeline liquid pressure. When the liquid pressure changes, the pressure sensor 23 will generate an electrical signal and transmit it to the data processing unit 24. The data processing unit 24 is responsible for processing the received signal to ensure accurate acquisition of the liquid pressure information. The communication module 25 transmits the processed data to the external device to realize remote monitoring and control of the pipeline liquid pressure. The display module 26 displays the detected data in a visual manner for the user to view and analyze.

[0075] like Figure 4 and Figure 5 As shown, in this embodiment, the detection head 21 is optimized and made of waterproof material, high temperature resistant material and anti-corrosion material.

[0076] In the present technical solution, waterproof materials are used to ensure that the detection head 21 can work in a liquid environment without being corroded by water, thereby ensuring the long-term stability and reliability of the pressure sensor body 2; since high temperatures may exist in the pipeline environment, the use of high temperature resistant materials can ensure that the detection head 21 can work normally in a high temperature environment without being affected by temperature; for corrosive liquids that may exist in the pipeline, the use of anti-corrosion materials can extend the service life of the detection head 21 and ensure that its performance is not affected by corrosion.

[0077] like Figure 5 As shown, in this embodiment, the data processing unit 24 is optimized to adopt a microprocessor, an integrated circuit or a programmable logic controller.

[0078] In the present technical solution, a microprocessor, an integrated circuit or a programmable logic controller is used: these are common chips or devices used for data processing and control.

[0079] Microprocessor: Used to execute data processing algorithms, control the operating mode of sensors, and communicate with other components.

[0080] Integrated circuits: can integrate multiple functions, such as signal processing, filtering, amplification, etc., to achieve accurate processing of sensor signals.

[0081] Programmable Logic Controller (PLC): Used to control the workflow and logic of sensors, such as triggering alarms or performing automated control actions based on specific conditions.

[0082] In this way, the detection head 21 receives the pressure change of the liquid in the pipeline, converts it into an electrical signal, and then processes and controls it through the data processing unit 24, and finally transmits it to the external device through the communication module 25. The detection head 21 is made of waterproof, high temperature resistant and corrosion resistant materials to ensure its stability and reliability in harsh environments; the data processing unit 24 uses a microprocessor, integrated circuit or programmable logic controller to realize the signal processing and control functions.

[0083] Embodiment 4:

[0084] This embodiment provides a sensor for detecting pipeline liquid pressure, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0085] like Figure 1 and Figure 4 As shown, in this embodiment, the pipeline body 1 is optimized to be provided with a disassembly and assembly mechanism 6 for facilitating the disassembly and assembly of the pressure sensor body 2, and the disassembly and assembly mechanism 6 includes:

[0086] A fixing block 61 is arranged at the upper end of the pipeline body 1;

[0087] A fastening screw 62 is threadedly disposed between the fixing block 61 and the pipeline body 1 , and the fastening screw 62 is connected to the detection head 21 ;

[0088] A connecting rod 63 is provided at the upper end of the fastening screw 62;

[0089] The sealing gasket 64 is disposed on the connecting rod 63 and in contact with the top surface of the fixing block 61 . The sealing gasket 64 is used to prevent the liquid in the pipeline body 1 from flowing out from the threads of the fastening screw 62 .

[0090] In the present technical solution, the pressure sensor body 2 is connected to the detection head 21 by the fastening screw 62, so that the pressure sensor body 2 can be disassembled or installed without a wrench. The user twists the connecting rod 63, and the connecting rod 63 drives the fastening screw 62 to rotate. The fastening screw 62 moves toward the outside of the pipe body 1 during rotation, and drives the detection head 21 to move, so that the detection head 21 is removed from the pipe body 1. Through the action of the sealing gasket 64, the liquid in the pipe body 1 will not flow out from the thread of the fastening screw 62 to prevent leakage. This not only facilitates the disassembly and installation of the detection head 21 without the use of a wrench or special tools, but also can seal the connection of the fastening screw 62 to prevent leakage.

[0091] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A sensor for detecting pipeline liquid pressure, characterized in that: include: A pipe body (1) is used to ensure the trajectory of liquid flow; A pressure sensor body (2) is arranged on the upper inner side of the pipeline body (1) and is used to detect the pressure of the liquid in the pipeline body (1); A shock absorbing mechanism (3) is arranged outside the pipeline body (1) and is used to reduce the vibration force transmitted to the pipeline body (1); The shock absorbing mechanism (3) comprises: A mounting frame (31) is located at the left and right ends of the pipeline body (1); A slide bar (32) is slidably arranged on the mounting frame (31), wherein the slide bars (32) are multiple and are evenly spaced and distributed along the circumferential direction of the mounting frame (31); A shock-absorbing pad (33) is arranged on the sliding rod (32), and the shock-absorbing pad (33) is in contact with the outer surface of the pipeline body (1); A shock absorbing spring (34), sleeved on the slide bar (32) and arranged between the shock absorbing pad (33) and the mounting frame (31); The pulling block (35) is arranged on the sliding rod (32).

2. The sensor for detecting pipeline liquid pressure according to claim 1, characterized in that: A sponge pad (4) in contact with the pipeline body (1) is provided on the inner side of the shock-absorbing pad (33).

3. The sensor for detecting pipeline liquid pressure according to claim 1, characterized in that: Positioning holes (5) for fixed installation are provided on both the front and rear sides of the mounting frame (31), and bolts (51) are passed through the positioning holes (5).

4. The sensor for detecting pipeline liquid pressure according to claim 1, characterized in that: The pressure sensor body (2) comprises: A detection head (21) is arranged inside the pipeline body (1); Ports (22) are arranged at the left and right ends of the detection head (21), and the two ports (22) are connected; A pressure sensor (23) is arranged inside the detection head (21); a data processing unit (24), electrically connected to the pressure sensor (23), and configured to receive and process an electrical signal from the pressure sensor (23); a communication module (25), connected to the data processing unit (24), for transmitting the processed data to an external device; A display module (26) is electrically connected to the communication module (25) and is used to display the detected data.

5. The sensor for detecting pipeline liquid pressure according to claim 4, characterized in that: The detection head (21) is made of waterproof material, high temperature resistant material and anti-corrosion material.

6. The sensor for detecting pipeline liquid pressure according to claim 4, characterized in that: The data processing unit (24) is a microprocessor, an integrated circuit or a programmable logic controller.

7. The sensor for detecting pipeline liquid pressure according to claim 4, characterized in that: The pipeline body (1) is provided with a disassembly and assembly mechanism (6) for facilitating the disassembly and assembly of the pressure sensor body (2), and the disassembly and assembly mechanism (6) comprises: A fixing block (61) is arranged at the upper end of the pipeline body (1); A fastening screw (62) is threadably disposed between the fixing block (61) and the pipeline body (1), and the fastening screw (62) is connected to the detection head (21); A connecting rod (63) is arranged on the upper end of the fastening screw rod (62); A sealing gasket (64) is arranged on the connecting rod (63) and contacts the top surface of the fixing block (61). The sealing gasket (64) is used to prevent the liquid in the pipeline body (1) from flowing out from the thread of the fastening screw (62).

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