CN217825018U

CN217825018U - Intelligent monitoring equipment for natural gas valve well

Info

Publication number: CN217825018U
Application number: CN202123243443.8U
Authority: CN
Inventors: 李刚; 孙发; 窦志国; 盖云; 王爱圳; 彭国干
Original assignee: Qingdao Lege New Energy Technology Co ltd
Current assignee: Qingdao Lege New Energy Technology Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-11-15
Anticipated expiration: 2031-12-22

Abstract

The utility model discloses a natural gas valve well intelligent monitoring equipment to the control of STM32L4 low-power consumption treater is gathered and is regarded as the equipment core with the control panel, and pressure transmitter sampling circuit, combustible gas sensor sampling circuit, location interface circuit, proximity switch circuit are connected to STM32L4 low-power consumption treater. The device can improve the management level of the natural gas pipeline, realize remote intelligent monitoring and shutoff of the PE ball valve, realize quick shutoff of the ball valve through a system in a fault state, and simultaneously monitor upstream and downstream pressure and natural gas leakage in the well in real time. The utility model discloses valve well intelligent monitoring equipment can regularly send the data of gathering to can receive host computer control command, gather and adopt battery powered with the control panel, can realize the low-power consumption control.

Description

Intelligent monitoring equipment for natural gas valve well

Technical Field

The utility model relates to a natural gas transmission and distribution field especially relates to a natural gas valve well intelligent monitoring equipment.

Background

In a natural gas transmission and distribution system, in order to operate or overhaul a natural gas pipeline, a part of a pipe network is selected to be opened or closed, and necessary valves are generally installed on the pipeline. In order to facilitate the operation of the valve, the valve is arranged in a valve well similar to a small room, and the valve well is an important device in a natural gas transmission and distribution system. The natural gas pipeline is provided with a plurality of valve wells, and PE ball valves and upstream and downstream dispersion ports are arranged in the wells. During the daily operation of the natural gas pipeline, when pipeline leakage and construction faults possibly exist, pipeline control and fault isolation can be carried out through a ball valve of a valve well.

In the prior art, a manual ball valve is generally adopted as a ball valve. The potential risk factors in the valve well are more, and safety risks exist when the manual ball valve is manually operated in the valve well. Moreover, when a pipeline fault is faced, the ball valve cannot be cut off quickly, the pipeline pressure cannot be monitored, and the pipeline fault cannot be eliminated in time. In addition, in a remote natural gas pipe network area, the labor cost is increased more and more, the valve well and the well cover are also frequently stolen, and the management difficulty of a natural gas transmission and distribution pipe network is very high.

SUMMERY OF THE UTILITY MODEL

In order to overcome above-mentioned prior art at least one defect, the utility model provides a natural gas valve well intelligent monitoring equipment.

The utility model discloses a solve the technical scheme that its problem adopted and be:

the intelligent monitoring equipment for the natural gas valve well comprises an STM32L4 low-power-consumption processor, a pressure transmitter sampling circuit, a combustible gas sensor sampling circuit, a positioning interface circuit and a proximity switch circuit, wherein the pressure transmitter sampling circuit and the combustible gas sensor sampling circuit are connected to an SPI bus of the STM32L4 low-power-consumption processor, a positioning module is connected to a UART port of the STM32L4 low-power-consumption processor, and the proximity switch circuit is connected to a GPIO port of the STM32L4 low-power-consumption processor; the pressure transmitter sampling circuit is connected with a pressure transmitter, and the pressure transmitter collects upstream and downstream pressure signals of a valve in the valve well; the combustible gas sensor sampling circuit is connected with a gas alarm; the positioning interface circuit is connected with a Beidou positioning module, and the Beidou positioning module sends positioning information of the valve in the valve well to the positioning interface circuit; the proximity switch circuit is connected with a well lid proximity switch of the valve well and used for monitoring the movement of the well lid; the device further comprises a relay output circuit, the relay output circuit is connected with a GPIO port of the STM32L4 low-power-consumption processor, and an electric valve of the valve well is connected to the relay output circuit.

Preferably, the device further comprises a battery current sampling circuit, wherein the battery current sampling circuit automatically monitors the residual electric quantity of the battery and automatically reports the residual electric quantity to the STM32L4 low-power-consumption processor in the case of low electric quantity.

Preferably, the equipment further comprises a network module and an antenna, wherein the network module and the UART port data of the STM32L4 low-power-consumption processor are bidirectionally transmitted, and the network module and the antenna data are bidirectionally transmitted.

Preferably, the positioning interface circuit is an RS485 circuit.

Preferably, the network module is an NB-ToT module.

Preferably, the device remotely controls the opening and closing of the valve.

Preferably, the apparatus detects combustible gas leaks in the valve well in real time.

The utility model discloses can improve the natural gas pipeline management level, realize long-range PE ball valve intelligent monitoring and turn-off equipment, can realize turning off the ball valve through the system under the fault status fast, simultaneously can the real-time supervision pressure and the interior natural gas of well in low reaches leak. The utility model discloses valve well intelligent monitoring equipment can regularly send the data of gathering to can receive host computer control command, gather and adopt battery powered with the control panel, can realize the low-power consumption control.

Drawings

Fig. 1 is the utility model discloses a natural gas valve well intelligent monitoring equipment.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The embodiment is a natural gas valve well intelligent monitoring device which is configured in a natural gas transmission and distribution system. Specifically, the equipment can be installed at a preset installation position on a valve well or a pipeline of a natural gas transmission and distribution system. As shown in FIG. 1, the intelligent monitoring equipment for the natural gas valve well comprises an STM32L4 low-power-consumption processor 1, and a monitoring acquisition and control board based on the STM32L4 low-power-consumption processor 1 is used as an equipment core. The STM32L4 low-power processor 1 is provided with an SPI bus, two UART interfaces, two GPIO interfaces and a power interface (3.3 VPOWER). STM32L4 belongs to general singlechip model, and its concrete working circuit belongs to existing prior art content.

The intelligent monitoring equipment for the natural gas valve well further comprises a pressure transmitter sampling circuit 3, a combustible gas sensor sampling circuit 4, a positioning interface circuit 5, a relay output circuit 13 and a proximity switch circuit 6. Wherein, pressure transmitter sampling circuit 3 and combustible gas sensor sampling circuit 4 are connected to the SPI bus of STM32L4 low-power consumption treater 1. And the pressure transmitter sampling circuit 3 and the STM32L4 low-power-consumption processor 1 perform bidirectional data transmission. And the combustible gas sensor sampling circuit 4 and the STM32L4 low-power-consumption processor 1 perform bidirectional data transmission. The positioning interface circuit 5 is connected to a UART port of the STM32L4 low-power processor 1, and the proximity switch circuit 6 is connected to a GPIO port of the STM32L4 low-power processor 1. The positioning interface library circuit 5 is in bidirectional data transmission with the STM32L4 low-power-consumption processor 1. The relay output circuit 13 is connected to the GPIO port of the STM32L4 low power processor 1. The relay output circuit 13 is further connected to an electric valve in the valve well to control the opening and closing of the electric valve. Through the equipment of this embodiment, realize the function that remote control ball valve shut off and open, also can real-time detection valve shaft in combustible gas reveals.

In the present embodiment, the relay output circuit 13 has 4 paths, the output current is less than 0.5A, and the voltage is 24V.

In this embodiment, the positioning interface circuit may be RS-485, TTL serial port or RS-232.

In this embodiment, this equipment has external instrument, and external instrument is including pressure transmitter 7, gas alarm 8, orientation module 9, well lid proximity switch 10. Wherein, pressure transmitter sampling circuit 3 connects pressure transmitter 7. In the preferred embodiment, there are at least two pressure transducers 7. In this embodiment, the pressure transmitter 7 has 3 paths, and respectively collects three pressure signals of the upstream, the downstream and the valve of the valve well on the pipeline. The combustible gas sensor sampling circuit 4 is connected with a gas alarm 8. The combustible gas sensor sampling circuit 4 is also connected with a combustible gas sensor (not shown), the combustible gas sensor is 1 way, the concentration of the combustible gas in the valve well is detected, and the leakage condition of the combustible gas in the valve well can be monitored in real time. The positioning interface circuit 5 is connected with the positioning module 9, the positioning module 9 measures the position of the valve, positioning information of the valve in the valve well is sent to the positioning interface circuit 5, the positioning information is automatically sent, and the stolen monitoring of the equipment can be realized. The positioning module 9 specifically adopts a Beidou positioning module. Proximity switch circuit 6 connects well lid proximity switch 10, and well lid proximity switch 10 is 1 way, as displacement sensor, sets up near the well lid or on the well lid, and the monitoring well lid removes. The well lid proximity switch 10 may be inductive, capacitive, hall element, or the like.

In a preferred embodiment, the device further includes a network module 11 and an antenna 12, the network module 11 performs bidirectional data transmission with the UART port of the STM32L4 low-power processor 1, and the network module 11 performs bidirectional data transmission with the antenna 12. In the embodiment, the equipment is arranged in the valve well, the antenna 12 extends out of the reserved wiring hole, the antenna exchanges data with the control center in a bidirectional mode, and the control center remotely controls the equipment and the valve of the valve well and has the function of remotely controlling the ball valve to be turned off and turned on. In other embodiments, the device is installed on a natural gas pipeline, and the antenna 12 can be folded for use, and can also realize wireless data exchange with a control center. In this embodiment, the network module 11 is an NB-loT low power module, and has bidirectional data transmission capability; meanwhile, the system is suitable for field and city arrangement, relies on a communication network, and does not need to specially design a complex line. In other embodiments, the network module 11 is a 4G module.

The equipment also comprises a power module 14 and a 7.2V battery interface 15, wherein the battery is adopted for supplying power, and the power module 14 provides a driving power supply for STM2 control. In a preferred embodiment, the device further includes a battery current sampling circuit 2, which is a 1-way circuit, and the battery current sampling circuit automatically monitors the remaining battery capacity and automatically reports the remaining battery capacity to the STM32L4 low-power processor 1 when the remaining battery capacity is low. Bidirectional data transmission is performed between the battery current sampling circuit 2 and the STM32L4 low-power-consumption processor 1.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims

1. The intelligent monitoring equipment for the natural gas valve well is characterized by comprising an STM32L4 low-power-consumption processor, a pressure transmitter sampling circuit, a combustible gas sensor sampling circuit, a positioning interface circuit and a proximity switch circuit, wherein the pressure transmitter sampling circuit and the combustible gas sensor sampling circuit are connected to an SPI bus of the STM32L4 low-power-consumption processor, the positioning interface circuit is connected to a UART port of the STM32L4 low-power-consumption processor, and the proximity switch circuit is connected to a GPIO port of the STM32L4 low-power-consumption processor; the pressure transmitter sampling circuit is connected with a pressure transmitter, and the pressure transmitter collects upstream and downstream pressure signals of a valve in the valve well; the combustible gas sensor sampling circuit is connected with a gas alarm; the positioning interface circuit is connected with a Beidou positioning module, and the Beidou positioning module sends positioning information of the valve in the valve well to the positioning interface circuit; the proximity switch circuit is connected with a well cover proximity switch of the valve well and used for monitoring the movement of the well cover; the intelligent monitoring equipment for the natural gas valve well further comprises a relay output circuit, the relay output circuit is connected with a GPIO port of the STM32L4 low-power-consumption processor, and an electric valve of the valve well is connected to the relay output circuit.

2. The intelligent monitoring device for the natural gas valve well according to claim 1, further comprising a battery current sampling circuit, wherein the battery current sampling circuit automatically monitors the residual electric quantity of the battery and automatically reports the residual electric quantity to the STM32L4 low-power-consumption processor in case of low electric quantity.

3. The intelligent monitoring device for the natural gas valve well, according to claim 1, is characterized in that the intelligent monitoring device for the natural gas valve well further comprises a network module and an antenna, wherein the network module performs data bidirectional transmission with a UART port of the STM32L4 low-power-consumption processor, and the network module performs data bidirectional transmission with the antenna.

4. The intelligent monitoring device for the natural gas valve well according to any one of claims 1 to 3, wherein the positioning interface circuit is an RS485 circuit.

5. The intelligent monitoring device for natural gas valve wells, according to claim 3, wherein the network module is an NB-ToT module.

6. The intelligent natural gas valve well monitoring device according to claim 5, wherein the intelligent natural gas valve well monitoring device remotely controls the opening and closing of the valve.

7. The intelligent monitoring device for the natural gas valve well as the claim 1 is characterized in that the intelligent monitoring device for the natural gas valve well detects the leakage of combustible gas in the valve well in real time.