Multi-path pressure detection system

Abstract

The utility model provides a multipath pressure detection system, which relates to the technical field of detection and comprises a plurality of branch pipelines respectively connected with a valve body and detection devices respectively connected with the plurality of branch pipelines. The detection device comprises a detection container, a sealing cavity is formed in the detection container, a pressure sensor communicated with the sealing cavity is arranged at the top of the detection container, check valves are arranged at an installation opening in the bottom of the detection container, and the check valves are connected with the corresponding branch pipelines through conveying pipelines respectively. The check valve is configured to allow the liquid medium to enter the sealing cavity when the pressure in the branch pipeline is increased and prevent the liquid medium in the sealing cavity from flowing back when the pressure in the branch pipeline is reduced. According to the multipath pressure detection system disclosed by the utility model, only one pressure sensor is arranged to be matched with the detection container, so that the system is allowed to detect the pressure of different branch pipelines without installing an independent sensor for each pipeline, the complexity of the system is reduced, and meanwhile, the maintenance cost is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure testing, in particular to a multi-channel pressure detection system. Background Art

[0002] In the field of industrial production and monitoring, especially in the chemical, oil and gas, and water treatment industries, pressure monitoring is a key technology to ensure production safety, improve efficiency, and optimize resource utilization. Pressure monitoring usually needs to be performed separately in multiple pipelines that transport media to ensure that the pressure of the media in each pipeline is within the appropriate working range and to adjust the parameters in the production process in a timely manner.

[0003] Traditional multi-channel pressure detection technology usually involves installing independent pressure sensors on each pipeline that needs to be monitored. These sensors are connected to the central monitoring system through physical cables to transmit data in real time. However, such systems have the following defects: 1. Wiring complexity: When there are many pipelines, each pipeline needs to be independently wired to the central monitoring system, which makes the overall wiring extremely complex. This complex wiring is not only difficult to install, but also increases the difficulty of maintaining the system, especially when troubleshooting and repairing. 2. High installation and maintenance costs: Since each pipeline requires independent sensors and wiring, this will incur high costs in initial installation and subsequent maintenance. Especially in harsh environments or space-constrained occasions, the difficulty and cost of work will be further increased. 3. System reliability issues: Due to the reliance on a large number of physical connections, the reliability of the system is affected. Problems such as line aging and poor contact may cause unstable or interrupted data transmission, thereby affecting the effectiveness of the entire monitoring system. Utility Model Content

[0004] In view of this, the utility model proposes a multi-channel pressure detection system to solve the problem of complicated wiring, high installation and maintenance costs in the prior art of arranging pressure sensors in multiple pipelines respectively.

[0005] The technical solution of the utility model is achieved in this way:

[0006] The utility model provides a multi-channel pressure detection system, comprising a plurality of branch pipelines, the liquid inlets of the plurality of branch pipelines are respectively connected to the valve body, and also comprises detection devices respectively connected to the plurality of branch pipelines;

[0007] The detection device includes a detection container, which has a sealed cavity inside. A pressure sensor connected to the sealed cavity is arranged on the top of the detection container, and a plurality of installation ports connected to the sealed cavity are opened at the bottom of the detection container. Check valves are arranged at the installation ports, and each check valve is connected to a corresponding branch pipeline through a delivery pipeline. The check valve is configured to allow liquid medium to enter the sealed cavity when the pressure in the branch pipeline increases, and prevent the liquid medium in the sealed cavity from flowing back when the pressure in the branch pipeline decreases.

[0008] On the basis of the above technical solution, preferably, the check valve is a slow-closing check valve.

[0009] On the basis of the above technical solution, preferably, a ball valve is provided inside the valve body, and the ball valve is used to selectively open each branch pipeline.

[0010] On the basis of the above technical solution, preferably, a control unit is further included, wherein the input end of the control unit is electrically connected to the pressure sensor, and the output end of the control unit is electrically connected to the pressure regulating valve.

[0011] On the basis of the above technical solution, preferably, a temperature sensor is provided inside the detection container, and the temperature sensor is electrically connected to the control unit for monitoring the temperature of the medium in the branch pipeline.

[0012] On the basis of the above technical solution, preferably, a dissolved oxygen sensor is further provided in the sealed cavity, and the dissolved oxygen sensor is electrically connected to the control unit to monitor the dissolved oxygen level of the liquid medium in the branch pipeline.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) In the multi-channel pressure detection system disclosed by the utility model, each branch pipeline is connected to the sealed cavity of the detection container through a check valve. These check valves are opened only when the pressure in the corresponding branch pipeline is higher than the pressure in the sealed cavity, allowing the liquid medium to flow into the sealed cavity. When the pressure in the sealed cavity and the branch pipeline is constant, the pressure sensor can accurately reflect the pressure condition in the corresponding branch pipeline. All branch pipelines share a pressure sensor. Due to the control of the check valve, the pressure sensor can detect the pressure of each running pipeline connected to the sealed cavity one by one. This design allows the system to detect the pressure of different branch pipelines separately without installing a separate sensor for each branch pipeline, which reduces the cost and the complexity of the system. The multi-channel system is easy to install and also reduces maintenance costs.

[0015] (2) By setting the check valve as a slow-closing check valve, the slow-closing check valve reduces the pressure shock that may be generated when the valve is closed by controlling the speed at which the valve closes, thereby reducing the pressure wave caused by the valve closing and the mechanical stress on the pipeline and system equipment, thereby extending the service life of the system. At the same time, the slow-closing check valve effectively reduces the water hammer phenomenon by slowing down the closing speed, protecting the pipeline and other system components from the impact of such pressure waves.

[0016] (3) By introducing the monitoring of multiple parameters such as temperature and dissolved oxygen, the function and scope of application of the multi-channel pressure detection system have been greatly enhanced. The combination of these technologies not only improves the accuracy of process control, but also enhances the system's adaptive ability and preventive maintenance function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the planar structure of the multi-channel pressure detection system disclosed in the utility model;

[0019] Reference numerals:

[0020] 1. Branch pipeline; 2. Valve body; 3. Detection device; 31. Detection container; 32. Pressure sensor; 33. Check valve; 34. Delivery pipeline; 311. Sealing chamber; 312. Installation port; 21. Ball valve; 39. Control unit; 36. Temperature sensor; 38. Dissolved oxygen sensor. DETAILED DESCRIPTION

[0021] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1As shown, the utility model discloses a multi-channel pressure detection system, which is used in a scenario where there are multiple branch pipes 1 and a valve body 2. The liquid inlets of the multiple valve bodies 2 are respectively connected to the valve body 2. The valve body 2 can open each branch pipe 1 individually, so that the liquid medium entering the valve body can flow through the branch pipe 1. The liquid outlet of the branch pipe 1 can be connected to other equipment or devices that need to transport liquid medium.

[0023] During the transportation of the liquid medium in the branch pipeline 1, the pressure data needs to be detected. The traditional multi-channel pressure detection system usually requires the installation of a separate pressure sensor 32 on each branch pipeline 1, which not only increases the complexity of wiring, but also increases the cost of installation and maintenance.

[0024] In order to solve this problem, the solution adopted in this embodiment is to provide a detection device 3 connected to the multiple branch pipelines 1 respectively.

[0025] Specifically, the detection device 3 includes a detection container 31 , which is a key component of the entire detection device 3 . The detection container 31 can be configured as a shell or a box, and has a sealed cavity 311 inside. The sealed cavity 311 is used to accommodate the liquid medium flowing into the branch pipe 1 .

[0026] A pressure sensor 32 connected to the sealed cavity 311 is arranged on the top of the detection container 31 . The pressure sensor 32 is used to measure the pressure of the liquid medium in the sealed cavity 311 . The pressure data is used to reflect the pressure of the liquid medium flowing in the branch pipe 1 .

[0027] A plurality of installation ports 312 in communication with the sealed cavity 311 are provided at the bottom of the detection container 31. The installation ports 312 are used to receive the liquid medium from the branch pipeline 1. A check valve 33 is provided at the installation port 312. Each check valve 33 is connected to the corresponding branch pipeline 1 through a delivery pipeline 34. The check valve 33 is configured to allow the liquid medium to enter the sealed cavity 311 when the pressure in the branch pipeline 1 increases, and to prevent the liquid medium in the sealed cavity 311 from flowing back when the pressure in the branch pipeline 1 decreases.

[0028] Specifically, when liquid medium flows in the branch pipe 1, there is a certain pressure in the branch pipe 1. The pressurized liquid medium will pass through the delivery pipe 34 and push open the check valve 33 to enter the sealed chamber 311. Since the liquid medium in the branch pipe 1 is in a flowing state, the liquid medium will fill the sealed chamber 311. At this time, the pressure in the sealed chamber 311 and the pressure in the branch pipe 1 are consistent. The pressure of the liquid medium in the sealed chamber 311 can be monitored in real time through the pressure sensor 32, and the pressure truly reflects the pressure data in the current branch pipe 1. Since multiple branch pipes 1 are connected to the sealed chamber 311 through the check valve 33, and multiple branch pipes 1 work separately, there will be no reflux of the liquid medium in the sealed chamber 311 in other non-working branch pipes 1, thereby maintaining a constant pressure in the sealed chamber 311 and the current working branch pipe 1. In this way, the real-time pressure of the liquid medium flowing in the branch pipe 1 can be easily detected.

[0029] When the liquid medium stops flowing inside the branch pipeline 1 during a certain working process, the pressure in the sealing cavity 311 is greater than the pressure in the branch pipeline 1. At this time, the check valve 33 corresponding to the branch pipeline 1 is closed, which is convenient for pressure data detection when other branch pipelines 1 are working.

[0030] In the multi-channel pressure detection system disclosed by the utility model, each branch pipeline 1 is connected to the sealed cavity 311 of the detection container 31 through a check valve 33. These check valves 33 are opened only when the pressure in the corresponding branch pipeline 1 is higher than the pressure in the sealed cavity 311, allowing the liquid medium to flow into the sealed cavity 311. When the pressure in the sealed cavity 311 and the branch pipeline 1 is constant, the pressure sensor 32 can accurately reflect the pressure condition in the corresponding branch pipeline 1. All branch pipelines share one pressure sensor. Due to the control of the check valve, the pressure sensor can monitor the pressure of each running pipeline connected to the sealed cavity one by one. This design allows the system to detect the pressure of different branch pipelines separately without installing a separate sensor for each branch pipeline, which reduces the cost and the complexity of the system, and also reduces the maintenance cost.

[0031] As some preferred implementation methods, the check valve 33 disclosed in this embodiment is a slow-closing check valve 33. Through this structural setting, when the flow of liquid medium in the branch pipe 1 stops, the pressure in the sealing chamber 311 is greater than the pressure in the branch pipe 1. At this time, the slow-closing check valve 33 will not be closed instantly, which allows the liquid medium in the sealing chamber 311 to flow back into the current branch pipe 1 through the slow-closing check valve 33, thereby relieving pressure in the sealing chamber 311, avoiding the pressure sensor 32 from always being in the state of detecting pressure data, and facilitating the accurate detection of pressure data when other branch pipes 1 are in operation, avoiding pressure data errors.

[0032] Of course, the slow-closing check valve 33 reduces the pressure shock that may be generated when the valve is closed by controlling the closing speed of the valve, thereby reducing the pressure wave caused by the closing of the valve and the mechanical stress on the pipeline and system equipment, thereby extending the service life of the system. At the same time, the slow-closing check valve 33 effectively reduces the water hammer phenomenon by mitigating the closing speed, protecting the pipeline and other system components from the influence of such pressure waves.

[0033] As some preferred embodiments, a ball valve 21 is provided inside the valve body 2, and the ball valve 21 is used to selectively open each branch pipeline 1. Each branch pipeline is connected to the liquid outlet on the valve body, and the corresponding branch pipeline can be connected to the valve body through the ball valve inside the valve body, and the liquid flow and pressure in each branch pipeline can be adjusted by rotating the ball valve 21.

[0034] The multi-channel pressure detection system disclosed in this embodiment further includes a control unit 39, the input end of the control unit 39 is electrically connected to the pressure sensor 32, and the output end of the control unit 39 is electrically connected to the ball valve 21. This configuration allows the control unit 39 to automatically adjust the pressure regulating valve 33 according to the data received from the pressure sensor 32 to maintain stable operation within the set pressure range.

[0035] The control unit 39 automatically processes the data from the pressure sensor 32 and adjusts the opening of the ball valve 21 accordingly to accurately control the pressure of each branch pipeline 1. This automated process reduces human operating errors and the need for real-time monitoring. The control unit 39 can ensure that the pressure in the branch pipeline 1 is always maintained within a predetermined safety range, avoiding equipment failure or production quality problems caused by abnormal pressure.

[0036] In the above embodiment, the control unit 39 may be a known controller such as a PCL or a single chip microcomputer in the prior art.

[0037] As some optional implementations, a temperature sensor 36 is disposed inside the detection container 31 . The temperature sensor 36 is electrically connected to the control unit 39 and is used to monitor the temperature of the medium in the branch pipeline 1 .

[0038] Temperature is one of the key factors affecting pressure measurement. By monitoring temperature, pressure changes can be interpreted more accurately, especially in industrial processes involving thermodynamics. The control unit 39 can adjust operating parameters based on temperature data, such as the setting of the ball valve 21, to ensure that the process operates under optimal temperature conditions. By monitoring the temperature in real time, the system can operate stably within the optimal temperature range to ensure the efficiency and quality of chemical reactions or other processing processes. By tracking temperature trends, the system can identify potential equipment failures in advance and achieve preventive maintenance.

[0039] As some optional implementations, a dissolved oxygen sensor 38 is further disposed in the sealed cavity 311 . The dissolved oxygen sensor 38 is electrically connected to the control unit 39 for monitoring the dissolved oxygen level of the liquid medium in the branch pipe 1 .

[0040] For biological treatment and certain chemical reactions, dissolved oxygen levels are critical parameters. Controlling and monitoring dissolved oxygen can optimize reaction efficiency and product quality. By continuously monitoring dissolved oxygen levels, the system can adjust process conditions to maintain the stability of biochemical reactions, especially in the fields of biological treatment and environmental protection.

[0041] The temperature sensor 36, flow rate sensor 37 and dissolved oxygen sensor 38 can be arranged according to actual needs, and these sensors can be selected from models known in the prior art.

[0042] The above embodiments greatly enhance the function and application scope of the multi-channel pressure detection system by introducing the monitoring of multiple parameters such as temperature and dissolved oxygen. The combination of these technologies not only improves the accuracy of process control, but also enhances the system's adaptive ability and preventive maintenance function, making it an indispensable and efficient tool in high-end industrial applications.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-channel pressure detection system, comprising a plurality of branch pipelines (1), wherein the liquid inlets of the plurality of branch pipelines (1) are respectively connected to a valve body (2), and characterized in that: it also comprises detection devices (3) respectively connected to the plurality of branch pipelines (1); The detection device (3) comprises a detection container (31), wherein the detection container (31) has a sealed cavity (311) inside, a pressure sensor (32) connected to the sealed cavity (311) is arranged at the top of the detection container (31), and a plurality of mounting ports (312) connected to the sealed cavity (311) are opened at the bottom of the detection container (31), and a check valve (33) is arranged at the mounting port (312), and each check valve (33) is connected to a corresponding branch pipeline (1) via a delivery pipeline (34), and the check valve (33) is configured to allow a liquid medium to enter the sealed cavity (311) when the pressure in the branch pipeline (1) increases, and to prevent the liquid medium in the sealed cavity (311) from flowing back when the pressure in the branch pipeline (1) decreases.

2. The multi-channel pressure detection system according to claim 1, characterized in that: The check valve (33) is a slow-closing check valve (33).

3. The multi-channel pressure detection system according to claim 1 or 2, characterized in that: A ball valve (21) is arranged inside the valve body (2), and the ball valve (21) is used to selectively open each branch pipeline (1).

4. The multi-channel pressure detection system as claimed in claim 3, characterized in that: It also includes a control unit (39), wherein an input end of the control unit (39) is electrically connected to the pressure sensor (32), and an output end of the control unit (39) is electrically connected to the ball valve (21).

5. The multi-channel pressure detection system according to claim 4, characterized in that: A temperature sensor (36) is arranged inside the detection container (31), and the temperature sensor (36) is electrically connected to the control unit (39) and is used to monitor the temperature of the medium in the branch pipeline (1).

6. The multi-channel pressure detection system according to claim 4, characterized in that: A dissolved oxygen sensor (38) is also provided in the sealed cavity (311). The dissolved oxygen sensor (38) is electrically connected to the control unit (39) and is used to monitor the dissolved oxygen level of the liquid medium in the branch pipeline (1).

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