CN220418714U

CN220418714U - Multidirectional pressure monitor

Info

Publication number: CN220418714U
Application number: CN202321680189.4U
Authority: CN
Inventors: 周锐; 占建斌; 李庆坤; 李英杰
Original assignee: Wuhan Energy Technology Engineering Co ltd
Current assignee: Wuhan Energy Technology Engineering Co ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2024-01-30
Anticipated expiration: 2033-06-29

Abstract

The utility model belongs to the field of natural gas pipeline safety, and particularly provides a multidirectional pressure monitor which comprises a shell, a power supply module and a main control board, wherein the power supply module is electrically connected with the main control board and uniformly distributed in the shell.

Description

Multidirectional pressure monitor

Technical Field

The utility model belongs to the technical field of natural gas pipeline safety, and particularly relates to a multidirectional pressure monitor.

Background

The existing pressure monitoring meter for the natural gas pipeline generally adopts a single pressure sensor, and is installed at a pressure measuring interface reserved at the inlet or the outlet of the natural gas pipeline for monitoring. In order to ensure the safety of the natural gas pipeline and reduce the risk of operation accidents, the pressure values of the inlet and the outlet of the pipeline often need to be monitored, and the operation dynamics of gas supply are mastered in multiple ways. In order to obtain the pressure value of the inlet and the outlet of the pipeline, the current pipeline pressure monitoring technology generally adopts the following two modes:

(1) And arranging a plurality of groups of pressure monitoring meters at the inlet and the outlet of the natural gas pipeline, and acquiring pressure values through meter reading or remote transmission.

(2) And arranging a plurality of pressure collectors at a plurality of pressure monitoring points such as an inlet and an outlet of a pipe network, and collecting and forwarding data of a plurality of pressure monitors into a controller through arranging a plurality of serial ports.

The two prior arts have the defects that a plurality of pressure detection meters are required to be arranged in the first mode, manual meter reading is required or a plurality of remote meters are required to be independently arranged, and the comparison analysis of the inlet and outlet pressures of a single pipeline is inconvenient; the second mode needs long-distance wiring, is complex in construction and high in cost, and cannot be applied to a field inconvenient wiring scene.

Disclosure of Invention

The utility model aims to solve the problems that the existing natural gas pipeline pressure gauge cannot synchronously measure in real time and has low economic benefit in the prior art.

The utility model provides a multidirectional pressure monitor, which comprises a shell, a power supply module and a main control board, wherein the power supply module is electrically connected with the main control board and uniformly distributed in the shell, the multidirectional pressure monitor also comprises at least two pressure sensors, at least one electric connector is arranged on the shell, one pressure sensor is arranged on the shell and electrically connected with the main control board, in addition, each pressure sensor is connected to the corresponding electric connector through a cable, and each electric connector is electrically connected to the main control board.

Specifically, a wireless communication module is arranged on the main control board, and the electric connector is detachably connected with the cable.

Specifically, the plug is detachably connected with the electric connector.

Specifically, a wireless communication module is arranged on the main control board, and the pressure sensor is electrically connected with the wireless communication module.

Specifically, the wireless communication module is an NB-IOT module.

Specifically, the shell comprises an upper shell and a lower shell, and the lower shell is detachably connected with the lower shell.

Specifically, the power module comprises a plurality of batteries and a battery seat provided with a plurality of installation positions, wherein the batteries are installed on the battery seat and are glued with the battery seat, and the battery seat is fixedly installed in the lower shell.

Specifically, the connection part of the upper shell and the lower shell is provided with a hollow sealing piece, and the power supply module penetrates through the hollow sealing piece and is electrically connected with the main control board.

Specifically, a first through hole is formed in the lower shell, one end portion, connected with the main control board, of one pressure sensor penetrates through the through hole, and the penetrating portion is fixed inside the lower shell through a nut.

Specifically, the lower shell is further provided with a second through hole penetrating through the electric connector, one end of the electric connector in the lower shell is fixed through a nut, and the other end of the connector is connected with the cable.

Compared with the prior art, the multidirectional pressure monitor provided by the utility model can realize 24-hour real-time synchronous monitoring on the pressure value of the pipeline inlet and outlet or the branch position, and adopts a low-power-consumption module and a battery for power supply, so that the cost is reduced, and the response speed is improved.

The present utility model will be described in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is an exploded assembly schematic view of a multi-azimuth pressure monitor according to an embodiment of the present utility model.

Reference numerals illustrate: 1. an upper case; 2. a PCB antenna; 3. a main control board; 4. m2×8 screws; 5. 18505 cells; 6. m2×6 screws; 7. a battery holder; 8. a seal ring; 9. a pressure sensor fixing nut; 10. a waterproof electrical joint nut; 11. a lower case; 12. a pressure sensor seal ring; 13. a pressure sensor; 14. m3×10 screws; 15. a waterproof electrical connector; 16. an external pressure sensor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second" may include one or more such features, either explicitly or implicitly; in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

Referring to fig. 1, the embodiment of the utility model provides a multidirectional pressure monitor, which comprises a shell, a sensor, a power module and a main control board 3, wherein the shell can be made of an abs+30% glass fiber material, the main control board 3 and the power module are arranged in the shell, the main control board 3 is a pcb board, and the power module supplies power and adopts a low-power consumption design. The main control board 3 adopts a periodic working mode to realize periodic data acquisition and uploading, and the main control board 3 is in a dormant state most of the time, and can wake up to work when the concentration and the data need to be acquired and uploaded. The sensor can adopt a high-precision low-power-consumption strain type pressure sensor, and the strain element is in direct contact with the pipeline gas to generate tiny deformation to determine a pressure value. At least one electrical connector is provided on the housing, and each pressure sensor is connected to a corresponding electrical connector by a cable. Referring to fig. 1, in this embodiment, a pressure sensor 13 is installed on a housing, one end of the pressure sensor 13 inside the housing is connected to a main control board 3 via an amplifying circuit, and the other end including a strain element is disposed outside the housing. An electrical connector 15 is provided on the housing and is connected to an external pressure sensor 16 by means of a cable. When the pressure of the natural gas pipeline is measured, the shell and the pressure sensor 13 on the shell are arranged at the pipeline inlet, the pressure sensor 13 is connected with the pipeline inlet through a pressure measurement interface reserved on the pipeline, and meanwhile, the second pressure sensor is connected with a pressure measurement interface on the pipeline outlet, so that the synchronous real-time measurement of the pressure value of the pipeline inlet and outlet can be realized. The multidirectional pressure monitor provided by the embodiment of the utility model can realize 24-hour synchronous real-time monitoring of the pressure value of the inlet and outlet or branch positions of the pipeline, has high monitoring efficiency and high response speed, and can obviously reduce the risk of pipe network operation accidents.

In an embodiment, the electrical connector is a waterproof electrical connector, and the cable connected with the external pressure sensor can be plugged on the electrical connector. For each electric connector, a plug which wraps the electric connector and is exposed out of the shell part corresponds to the electric connector, and the plug is sleeved on the electric connector, so that good sealing performance of the electric connector is ensured. When a plurality of external pressure sensors are needed, the plugs on the electric connector are removed, and the cable is inserted into the electric connector, so that the external pressure sensors can be electrically connected with the electric connector. According to the optimized embodiment, the electric connector and the cable are detachably connected, so that a plurality of external pressure sensors can be used along with the plug, and the applicability and flexibility of pressure monitoring are improved; through setting up the electric joint end cap, can make the instrument be applicable to the humidity such as in pit and multiple extreme measuring environment that corrosiveness is higher.

In an optimized embodiment, the main control board 3 is provided with a wireless communication module, the wireless communication module can adopt a PCB antenna 2 for receiving and transmitting wireless signals, the PCB antenna can increase the intensity of the wireless signals, and the module is small in size and convenient to integrate. The electric signals of the pressure sensor 13 and the pressure sensor 16 are uploaded to the main control board 3 through the amplifying circuit and stored in the main control board memory, the main control board 3 scans the memory regularly to collect data, the collected data are transmitted to the wireless communication module, and the wireless communication module converts the electric signals into wireless signals to be sent out. According to the embodiment, the wireless communication module is additionally arranged, so that wireless transmission of the pipeline monitoring value can be realized, long-distance wiring is not needed, the cost is reduced, the equipment can be used in places where wiring cannot be conducted in the field, and the applicability is higher.

Preferably, the wireless communication module may be an NB-IOT module suitable for low-power consumption power-off equipment, where the NB-IOT module is an existing communication wireless module, and the NB-IOT module may be an XMM7315 chip. The NB-IOT module sends the pipeline pressure data to surrounding NB-IOT base stations, which send the data to the client via the carrier communication network and TCP/IP protocol. The NB-IOT module has the characteristics of strong penetration capability and low power consumption, can generate stronger signals underground and underground, and can further improve the environment adaptability of the equipment.

In a refined embodiment, the shell comprises an upper shell 1 and a lower shell 11, and the upper shell 1 and the lower shell 11 are detachably connected through M3 x 10 screws, so that the aging element or the power module can be replaced conveniently. The power module is connected with the power interface of the main control board 3 and comprises a plurality of batteries 5 and a battery seat 7 provided with a plurality of installation positions, the battery seat 7 is made of ABS material, the batteries 5 can be 18505 lithium batteries, the working temperature amplitude of the 18505 lithium batteries is-60-85 ℃, the service life is long, and the power supply stability of the equipment can be ensured when the equipment works underground or underground. The battery 5 is placed in the battery holder 7 and glued to the battery holder 7 by means of an insulating glue, the battery holder 7 being fixed in the lower housing 11 by means of M2 x 6 screws 6. The junction of the upper shell 1 and the lower shell 11 is provided with a hollow sealing ring 8, the hollow sealing ring 8 is provided with an irregular through hole with the size slightly larger than the radial circumference of the battery seat 7, and the power supply module penetrates through the hollow sealing member 8 and is connected with the main control board 3. The bottom of the lower shell 11 is provided with a first through hole for installing the pressure sensor 13, one end, connected with the main control board 3, of the pressure sensor 13 penetrates through the first through hole from the outer side of the lower shell 11, the penetrating part is fixed inside the lower shell 11 through the pressure sensor fixing nut 9, and a pressure sensor sealing ring 12 is arranged at the joint of the pressure sensor 13 and the lower shell 11. The side of the lower shell 11 is provided with a second through hole, the second through hole is penetrated with a waterproof electric joint 15, one end of the waterproof electric joint 15 in the lower shell 11 is fixed through a waterproof joint nut 10, and the other end is connected with an external pressure sensor 16 through the cable. The multi-azimuth pressure monitor provided by the embodiment of the utility model has the advantages that the overall waterproof and dustproof grade can reach IP68, the multi-azimuth pressure monitor can be installed in a field valve well chamber, the equipment can normally work even though the equipment is immersed in water in a short time, the overall power consumption of the equipment is low, the service life is long, and the equipment does not need to be replaced within 3 years.

The foregoing examples are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model, and all designs that are the same or similar to the present utility model are within the scope of the present utility model.

Claims

1. The utility model provides a diversified pressure monitor, includes casing, power module and main control board, power module with the main control board electricity is connected and the equipartition is arranged in inside the casing, its characterized in that still includes two at least pressure sensor, be provided with at least one electric connector on the casing, one of them pressure sensor installs on the casing and be connected with the main control board electricity, in addition each pressure sensor all is connected to corresponding electric connector through the cable, each electric connector all is connected to the main control board.

2. The multi-directional pressure monitor of claim 1, wherein the electrical connector is detachably connected to the cable.

3. The multi-directional pressure monitor of claim 1, further comprising a plug that is wrapped around the electrical connector and exposed to the housing portion, the plug being removably connected to the electrical connector.

4. The multi-directional pressure monitor of claim 1, wherein the main control board is provided with a wireless communication module, and the pressure sensor is electrically connected with the wireless communication module.

5. The multi-directional pressure monitor of claim 4, wherein the wireless communication module is an NB-IOT module.

6. The multi-directional pressure monitor of claim 1, wherein the housing comprises an upper shell and a lower shell, the upper shell and the lower shell being removably connected.

7. The multi-directional pressure monitor of claim 6, wherein the power module comprises a plurality of batteries and a battery holder provided with a plurality of mounting locations, the batteries are mounted on the battery holder and glued with the battery holder, and the battery holder is fixedly mounted in the lower housing.

8. The multi-directional pressure monitor of claim 7, wherein a hollow sealing member is arranged at the joint of the upper shell and the lower shell, and the power supply module penetrates through the hollow sealing member and is electrically connected with the main control board.

9. The multi-directional pressure monitor of claim 6, wherein the lower housing is provided with a first through hole, and wherein a portion of one end of the pressure sensor connected with the main control board passes through the through hole, and the passing portion is fixed inside the lower housing by a nut.

10. The multi-directional pressure monitor of claim 6, wherein the lower housing is further provided with a second through hole penetrating the electrical connector, one end of the electrical connector in the lower housing is fixed by a nut, and the other end of the connector is connected with the cable.