CN214279137U

CN214279137U - Pipeline terminal pressure fluctuation and gas leakage detection and alarm system

Info

Publication number: CN214279137U
Application number: CN202120444155.XU
Authority: CN
Inventors: 王景凯; 孙永兵; 赵子钰; 周航; 贾健辉; 郭泽杰; 付国辉; 佟金辉
Original assignee: Petrochina Kunlun Gas Co ltd Beijing Branch; Beijing Huayou United Gas Development Co ltd Majuqiao Branch
Current assignee: Petrochina Kunlun Gas Co ltd Beijing Branch; Beijing Huayou United Gas Development Co ltd Majuqiao Branch
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-09-24
Anticipated expiration: 2031-03-02

Abstract

The utility model provides a pipeline terminal pressure fluctuation and gas leakage detection and alarm system, which comprises a high-low pressure alarm module, a gas alarm module and a communication alarm automatic dialing module, wherein the high-low pressure alarm module and the gas alarm module are respectively electrically connected with the communication alarm automatic dialing module; the high-low pressure alarm module detects pressure fluctuation and generates a first trigger signal; the gas alarm module detects gas leakage and generates a second trigger signal; and the first trigger signal and the second trigger signal trigger the communication alarm automatic dialing module to perform automatic dialing alarm. The utility model provides a detection and alarm system for pipeline tail end pressure fluctuation and gas leakage, which can detect the pressure fluctuation and gas leakage condition at the pipeline tail end in real time; the automatic triggering can be realized, the alarm can be given in time, and the fault expansion and the safety accident can be prevented; simple structure, low cost, timely alarm response and convenient use.

Description

Pipeline terminal pressure fluctuation and gas leakage detection and alarm system

Technical Field

The utility model belongs to the technical field of the gas is carried, concretely relates to detection and alarm system that terminal pressure fluctuation of pipeline and gas were revealed.

Background

With the rapid development of urban gas pipe networks, clean and efficient gas energy sources have already entered thousands of households. The urban gas pipe network transmission and distribution generally comprises stages of high pressure, pressure regulation to medium pressure, pressure regulation to low pressure, pressure regulation to users and the like. In the transmission and distribution link of the gas pipe network, the pressure regulating box plays a vital role in the operation of the gas pipe network. Usually, pipeline patrolling personnel regularly carry out security inspection and maintenance on the pressure regulating boxes through the pipeline network, however, because the number of the pressure regulating boxes in the gas pipeline network is large, the pipeline network patrolling personnel cannot inspect and maintain all the pressure regulating boxes every day. Therefore, when the pressure regulating box has pressure fluctuation, abnormal work, faults and gas leakage, the pressure regulating box cannot find the pressure regulating box in time, and accidents are caused.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above technical problems, an object of the present invention is to provide a system for detecting and alarming pressure fluctuation and gas leakage at the end of a pipeline, which can detect the pressure fluctuation and gas leakage at the end of the pipeline in real time; the automatic triggering can be realized, the alarm can be given in time, and the fault expansion and the safety accident can be prevented.

In order to at least achieve one of the above purposes, the technical solution adopted in the embodiment of the present invention is: the detection and alarm system for the pressure fluctuation and the gas leakage at the tail end of the pipeline comprises a high-low pressure alarm module, a gas alarm module and a communication alarm automatic dialing module, wherein the high-low pressure alarm module and the gas alarm module are respectively and electrically connected with the communication alarm automatic dialing module; the high-low pressure alarm module detects pressure fluctuation and generates a first trigger signal; the gas alarm module detects gas leakage and generates a second trigger signal; and the first trigger signal and the second trigger signal trigger the communication alarm automatic dialing module to perform automatic dialing alarm.

And the charging and power supply module is respectively electrically connected with the high-low voltage alarm module, the gas alarm module and the communication alarm automatic dialing module to supply power.

Further, the high-low voltage alarm module comprises an explosion-proof electric contact pressure gauge and a high-low voltage RC trigger and reset circuit.

Further, the explosion-proof electric contact pressure gauge is arranged in the pressure regulating box and communicated with the gas pipeline and used for detecting the pressure of the pipe network in real time.

Further, when the pressure of the pipe network rises or falls and exceeds a preset pressure value, the anti-explosion electric contact pressure gauge is connected with a high-voltage or low-voltage contact through a pointer, and after the high-voltage or low-voltage contact is closed, the high-voltage or low-voltage contact is triggered and reset through the high-voltage and low-voltage RC circuit to generate the first trigger signal.

Further, the gas alarm module comprises a gas probe, a gas detection circuit and a relay circuit.

Further, when the gas probe detects that the gas concentration exceeds the preset concentration range, the gas detection circuit is switched on, the relay circuit is switched on by the gas detection circuit, and the trigger signal II is generated after the relay is switched on.

Furthermore, the communication alarm automatic dialing module comprises an alarm power supply and an automatic dialing module.

Furthermore, the first trigger signal and the second trigger signal trigger the alarm power supply to be switched on, the automatic dialing module dials the mobile phone number of the line patrol personnel through a preset mobile phone number, and the line patrol personnel determine the position of the alarm voltage regulation box through a preset voltage regulation box number.

Furthermore, the charging and power supplying module comprises a charging device, a battery and a direct current boosting power supply; the charging device charges the battery, and the battery supplies power to the outside through the direct current boosting power supply.

The utility model provides a detection and alarm system that pipeline terminal pressure fluctuation and gas were revealed compares with prior art, and beneficial effect lies in:

the system can detect the pressure fluctuation at the tail end of the pipeline in real time by arranging the high-low pressure alarm module; through setting up gas alarm module, can real-time detection gas leak the condition. The automatic triggering communication alarm automatic dialing module is arranged, so that automatic triggering can be realized, alarm can be timely given out, and the expansion of faults and the occurrence of safety accidents can be prevented. The system has the advantages of simple structure, low cost, timely alarm response and convenient use.

Drawings

FIG. 1 is a schematic diagram of a detection and alarm system for pipeline end pressure fluctuation and gas leakage provided by an embodiment of the present invention;

fig. 2 is a schematic circuit diagram of the detection and alarm system for pipeline end pressure fluctuation and gas leakage provided by the embodiment of the utility model for cold energy utilization.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the following specific embodiments. It should be noted that the following described embodiments are exemplary only, and are not to be construed as limiting the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The following detailed description will be made on the detection and alarm system for the pressure fluctuation at the end of the pipeline and the gas leakage provided by the present invention through specific embodiments:

as shown in figures 1-2, the utility model provides a detection and alarm system that pipeline terminal pressure fluctuation and gas were revealed is applied to the detection and the warning of pressure regulating box in the gas pipe network. The detection and alarm system for the pressure fluctuation at the tail end of the pipeline and the gas leakage mainly comprises a charging and power supply module, a high-low pressure alarm module, a gas alarm module and a communication alarm automatic dialing module.

The charging and power supply module comprises a charging device, a battery and a direct current boosting power supply. The charging device can charge the battery, and the battery supplies power to the outside through the direct current boosting power supply.

The high-low voltage alarm module comprises an explosion-proof electric contact pressure gauge and a high-low voltage RC trigger and reset circuit. The explosion-proof electric contact pressure gauge is arranged in the pressure regulating box, communicated with the gas pipeline and used for detecting the pressure of the pipe network in real time. When the pressure of the pipe network rises or falls to exceed a preset pressure value, the anti-explosion electric contact pressure gauge is connected with a high-voltage or low-voltage contact through a pointer, and after the contact is closed, a circuit is triggered and reset through a high-voltage RC (resistor-capacitor) circuit and a reset circuit to generate a first trigger signal.

The gas alarm module comprises a gas probe, a gas detection circuit and a relay circuit. The gas probe detects the gas concentration, and when exceeding the preset concentration range, the gas detection circuit is switched on, the relay circuit is switched on instantly, and after the relay is switched on, a second trigger signal is generated.

The communication alarm automatic dialing module comprises an alarm power supply and an automatic dialing module. The first trigger signal and the second trigger signal can trigger the alarm power supply to be connected, the automatic dialing module dials the mobile phone number of the line patrol personnel through the preset mobile phone number, the line patrol personnel determines the position of the alarm voltage regulating box through the preset voltage regulating box number, and the alarm voltage regulating box rapidly arrives at the fault site to check, analyze and repair alarm faults, so that the fault expansion is prevented, and safety accidents are caused.

The utility model provides a detection and alarm system's that pipeline terminal pressure fluctuation and gas were revealed theory of operation specifically introduces as follows:

1. pressure fluctuation alarm

When the pressure of the pipe network is increased or decreased to exceed a preset pressure value due to the faults of the upper and lower pressure regulators, the leakage of the pipe network and the like, the anti-explosion electric contact pressure gauge is connected with a high-voltage or low-voltage contact through a pointer, the contact is closed, and a first trigger signal is generated through a high-voltage and low-voltage RC trigger circuit. The alarm power supply of the communication alarm automatic dialing module is connected through the trigger signal I, after the alarm power supply is connected, the automatic dialing module dials the mobile phone number of the line patrol personnel through the preset mobile phone number, the line patrol personnel determines the position of the alarm voltage regulating box through the preset voltage regulating box number, and the alarm voltage regulating box rapidly arrives at the fault site to check, analyze and repair alarm faults, so that the fault expansion is prevented, and safety accidents are caused.

2. Gas leakage alarm

When the pressure regulating box leaks gas due to weather, equipment faults and the like, when the gas probe detects that the gas concentration exceeds a preset concentration range, the gas detection circuit is switched on, the relay circuit is switched on instantly, and a second trigger signal is generated after the relay is switched on. The second trigger signal is connected with an alarm power supply of the communication alarm automatic dialing module, after the alarm power supply is connected, the automatic dialing module is connected with the mobile phone number of the line patrol personnel through a preset mobile phone number, the line patrol personnel determines the position of the alarm voltage regulating box through a preset voltage regulating box number, and the alarm voltage regulating box rapidly arrives at a fault site to check, analyze and repair alarm faults, so that the fault expansion is prevented, and safety accidents are caused.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Claims

1. The utility model provides a detection and alarm system that pipeline terminal pressure fluctuation and gas were revealed which characterized in that: the high-low pressure alarm module and the gas alarm module are respectively and electrically connected with the communication alarm automatic dialing module; the high-low pressure alarm module detects pressure fluctuation and generates a first trigger signal; the gas alarm module detects gas leakage and generates a second trigger signal; and the first trigger signal and the second trigger signal trigger the communication alarm automatic dialing module to perform automatic dialing alarm.

2. The system for detecting and alarming pressure fluctuation and gas leakage at the end of a pipeline as claimed in claim 1, wherein: the gas alarm system is characterized by further comprising a charging and power supply module, wherein the charging and power supply module is respectively electrically connected with the high-low voltage alarm module, the gas alarm module and the communication alarm automatic dialing module to supply power.

3. The system for detecting and alarming pressure fluctuation and gas leakage at the end of a pipeline as claimed in claim 2, wherein: the high-low voltage alarm module comprises an explosion-proof electric contact pressure gauge and a high-low voltage RC trigger and reset circuit.

4. The system for detecting and alarming pressure fluctuation and gas leakage at the end of a pipeline as claimed in claim 3, wherein: the explosion-proof electric contact pressure gauge is arranged in the pressure regulating box, communicated with the gas pipeline and used for detecting the pressure of the pipe network in real time.

5. The system for detecting and alarming pressure fluctuation and gas leakage at the end of a pipeline as claimed in claim 4, wherein: when the pressure of the pipe network rises or falls to exceed a preset pressure value, the explosion-proof electric contact pressure gauge is connected with a high-voltage or low-voltage contact through a pointer, and the high-voltage or low-voltage contact is closed and then triggered and reset through the high-voltage and low-voltage RC circuit to generate a first trigger signal.

6. The system for detecting and alarming pressure fluctuation and gas leakage at the end of a pipeline as claimed in claim 5, wherein: the gas alarm module comprises a gas probe, a gas detection circuit and a relay circuit.

7. The system for detecting and alarming pressure fluctuation and gas leakage at the end of a pipeline as claimed in claim 6, wherein: when the gas probe detects that the gas concentration exceeds the preset concentration range, the gas detection circuit is switched on the relay circuit, and after the relay is closed, the triggering signal II is generated.

8. The system for detecting and warning of pipe end pressure fluctuations and gas leaks of claim 7, wherein: the communication alarm automatic dialing module comprises an alarm power supply and an automatic dialing module.

9. The system for detecting and warning of pipe end pressure fluctuations and gas leaks of claim 8, wherein: the first trigger signal and the second trigger signal trigger the alarm power supply to be switched on, the automatic dialing module dials the mobile phone number of the line patrol personnel through a preset mobile phone number, and the line patrol personnel determine the position of the alarm voltage regulation box through a preset voltage regulation box number.

10. The system for detecting and warning of pipe end pressure fluctuations and gas leaks of claim 9, wherein: the charging and power supply module comprises a charging device, a battery and a direct current boosting power supply; the charging device charges the battery, and the battery supplies power to the outside through the direct current boosting power supply.