Leakage measuring device of fuel gas pressure regulating cabinet

Abstract

The utility model relates to a leakage measuring device of a fuel gas pressure regulating cabinet, which comprises a connecting pipeline, one end of the connecting pipeline is connected to a medium-pressure gas inlet of the fuel gas pressure regulating cabinet, and the other end of the connecting pipeline is connected to a low-pressure gas outlet of the fuel gas pressure regulating cabinet; the detection unit is used for detecting and recording the flow of the fuel gas, and the detection unit is arranged on the connecting pipeline to detect the fuel gas in the connecting pipeline; the first valve is used for opening and closing according to the pressure of the fuel gas so as to control whether the fuel gas only flows into the connecting pipeline or not, and the first valve is arranged on a pressure regulating loop of the fuel gas pressure regulating cabinet and is close to a medium-pressure gas inlet of the fuel gas pressure regulating cabinet; the closing pressure of the first valve is smaller than the pressure range to be detected by the detection unit. When the pressure of the fuel gas exceeds the rated pressure of the first valve, the first valve is closed, so that the fuel gas only passes through the connecting pipeline, and whether the fuel gas leaks or not is judged by detecting the flow speed of the fuel gas passing through the connecting pipeline.

Description

Technical Field

[0001] This application relates to the technical field of gas pressure regulating cabinets, and in particular to a measuring and leakage detecting device for a gas pressure regulating cabinet. Background Art

[0002] Gas safety is an important part of modern life. However, due to the special nature of gas, serious safety accidents may occur if strict safety measures are not taken.

[0003] Currently, when detecting large residential areas, commercial complexes, etc., a pressure test is usually used. During the early morning when no one uses gas, the gas pipeline is pressurized to detect whether there is pressure leakage, so as to determine whether there is gas leakage. However, a large number of personnel are required for the pressure test, and it is also impossible to ensure that no one is using gas during the early morning detection, resulting in a situation where it takes time and effort but cannot guarantee the accuracy of the detection.

[0004] Therefore, a new technical solution is needed to solve the above problems. Utility Model Content

[0005] In order to make the detection of gas leakage more convenient and accurate, this application provides a measuring and leakage detecting device for a gas pressure regulating cabinet.

[0006] The measuring and leakage detecting device for a gas pressure regulating cabinet provided by this application adopts the following technical solution:

[0007] A measuring and leakage detecting device for a gas pressure regulating cabinet, comprising:

[0008] A connecting pipeline, one end of the connecting pipeline is connected to the medium-pressure air inlet of the gas pressure regulating cabinet, and the other end of the connecting pipeline is connected to the low-pressure air outlet of the gas pressure regulating cabinet;

[0009] A detection unit, used to detect and record the gas flow rate, and the detection unit is arranged on the connecting pipeline to detect the gas in the connecting pipeline;

[0010] And a first valve, used to open and close according to the gas pressure to control whether the gas only flows into the connecting pipeline, and the first valve is arranged at a position close to the medium-pressure air inlet of the gas pressure regulating cabinet on the pressure regulating return pipeline of the gas pressure regulating cabinet itself;

[0011] The closing pressure of the first valve is less than the pressure range to be detected by the detection unit.

[0012] By adopting the above technical solution, when the gas pressure exceeds the rated pressure of the first valve, the first valve closes, so that the gas only passes through the connecting pipeline, and whether there is gas leakage is judged by detecting the flow rate of the gas passing through the connecting pipeline.

[0013] Optionally, a second valve is provided on the connecting pipeline, and the closing pressure of the second valve is greater than the closing pressure of the first valve.

[0014] By adopting the above technical solution, the detection of gas is only carried out under a certain rated pressure, making the detection result of gas leakage more accurate.

[0015] Optionally, the connecting pipeline is made of anti-biting pipe material.

[0016] By adopting the above technical solution, when the connecting pipeline is placed outdoors, rats and the like will not cause damage to the connecting pipeline when biting it, thus reducing the occurrence of safety accidents.

[0017] Optionally, the connecting pipeline is connected to the medium-pressure inlet and low-pressure outlet of the gas pressure regulating cabinet through a cock.

[0018] By adopting the above technical solution, the connecting pipeline is directly connected to the original pipeline connection port on the gas pressure regulating cabinet, so that the gas pressure regulating cabinet does not need to be changed when the connecting pipeline is installed on the gas pressure regulating cabinet, so that the connecting pipeline can be directly installed on the gas pressure regulating cabinet, increasing the available range of the leakage measuring device.

[0019] Optionally, the detection unit includes a flow detection module and a storage module for recording the detection data of the flow detection module. The storage module is electrically connected to the flow detection module, and the detection end of the flow detection module is located inside the connecting pipeline.

[0020] By adopting the above technical solution, after the flow detection module detects the real-time flow of gas, the detected flow data can also be stored by the storage module, so that the stored data can be processed to determine whether there is a problem of gas leakage.

[0021] Optionally, the storage module is further connected with a wireless transmission module for transmitting the data stored in the storage module to the corresponding electronic device. The wireless transmission module is electrically connected to the storage module.

[0022] By adopting the above technical solution, the data stored in the storage module can be directly transmitted to the electronic device without transmitting the data through a wired transmission method such as a data cable, making the transfer of data more convenient and the processing of data more convenient.

[0023] Optionally, a support frame is provided outside the connecting pipeline, and the support frame is connected to the gas pressure regulating cabinet.

[0024] By adopting the above technical solution, the connecting pipeline is supported by the support frame, so that the connecting pipeline will not directly fall to the ground and cause unexpected situations.

[0025] Optionally, the support frame is detachably connected to the gas pressure regulating cabinet, and the upper end of the support frame abuts against the lower end of the connecting pipeline.

[0026] By adopting the above technical solution, when installing the leakage measuring device, the support frame can be directly installed on the gas pressure regulating cabinet, so as to facilitate the support of the connecting pipeline and make the installation of the leakage measuring device more convenient.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. By setting a first valve on the gas pressure regulating cabinet, after the gas pressure exceeds the rated power of the first valve, the first valve closes, so that the gas only passes through the connecting pipeline. By judging the change of the gas flow rate in the connecting pipeline within the rated time, it is possible to determine whether there is gas leakage;

[0029] 2. The storage module is used to store the real-time data detected by the flow detection module, so that the detected data can be exported and processed at one time when data is needed, thus eliminating the need to pay attention to the change of the detection data of the flow detection module in real time and making the detection of the flow more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of an embodiment of the present application;

[0031] Figure 2 is a schematic diagram showing the structure of the support frame for an embodiment of the present application.

[0032] In the figure, 1, connecting pipeline; 2, detection unit; 3, first valve; 4, second valve; 5, support frame; 51, support plate; 52, first support foot; 53, second support foot; 54, clamp. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following further describes the present application in detail with reference to the accompanying drawings.

[0034] A leakage measuring device for a gas pressure regulating cabinet disclosed in the present application, as Figure 1As shown in the figure, it includes a connecting pipeline 1 connected to a gas pressure regulating cabinet, a detection unit 2 for detecting the gas flow rate in the connecting pipeline 1, and a first valve 3 for controlling whether gas passes through the gas pressure regulating cabinet. Both ends of the connecting pipeline 1 are connected to the medium-pressure inlet and the low-pressure outlet of the gas pressure regulating cabinet through cocks, so that after the gas is output from the main pipe, it can enter the gas pressure regulating cabinet and the connecting pipeline 1 respectively. The first valve 3 is a pressure reducing valve in this embodiment. The first valve 3 is arranged on the pressure regulating loop of the gas pressure regulating cabinet and is close to the medium-pressure inlet. After the pressure of the gas entering the medium-pressure inlet from the main pipe exceeds the rated pressure set by the first valve 3, the first valve 3 closes so that the gas enters the connecting pipeline 1. The detection unit 2 is used to detect the flow rate of the gas within a rated time, and whether there is a gas leak in the gas pipeline network where the gas pressure regulating cabinet is located is judged according to the speed, presence or absence, and change amplitude of the flow rate.

[0035] In order to enable the detection unit 2 to detect the flow rate of gas within a rated pressure range, a second valve 4 is also arranged on the connecting pipeline 1. The second valve 4 is a pressure reducing valve in this embodiment. The second valve 4 is arranged on the side of the detection unit 2 close to the medium-pressure inlet. The preset pressure of the second valve 4 is higher than the preset pressure of the first valve 3, so that when detecting, the input pressure of the gas is increased to make the first valve 3 close so that all the gas passes through the connecting pipeline 1, and the detection unit 2 detects the gas within the rated pressure range.

[0036] Since the gas pressure regulating cabinet is directly installed outdoors, rats may gnaw through the connecting pipeline 1. Therefore, the connecting pipeline 1 is made of anti-chewing pipe material. In this embodiment, the connecting pipeline 1 is selected as a metal bellows, so as to enhance the strength of the connecting pipeline with the metal material, making it difficult for rats to damage the connecting pipeline 1. At the same time, the metal bellows can also make the connecting pipeline 1 be bent into different states according to needs.

[0037] The detection unit 2 includes a flow detection module for detecting the gas flow rate and a storage module for recording the data detected by the flow detection module. The storage module is electrically connected to the flow detection module and stores the real-time flow rate data detected by the flow detection module, which is convenient for subsequent data processing.

[0038] The storage module is also connected to a wireless transmission module for transmitting the stored data to the corresponding electronic device. The wireless transmission module has a decoding function. The storage module is electrically connected to the wireless transmission module and relies on the wireless transmission module to transmit the recorded data to the electronic device. After that, the data detected by the flow detection module can be processed and analyzed according to the data received by the electronic device, so as to judge whether gas leakage has occurred.

[0039] Such asFigure 2 As shown, a support frame 5 is also detachably installed on the outer wall of the gas pressure regulating cabinet by bolts. The upper end of the support frame 5 abuts against the lower end face of the connecting pipeline 1, and the overall position of the connecting pipeline 1 is supported by the support frame 5, so that the connecting pipeline 1 is not likely to drop to the ground due to problems with its own material during use.

[0040] The support frame 5 includes a support plate 51 for abutting against the connecting pipeline 1, a number of first support feet 52 and a number of second support feet 53 arranged at the lower end of the support plate 51. The first support feet 52 are arranged on the side of the support plate 51 close to the gas pressure regulating cabinet, and the first support feet 52 are fixed to the gas pressure regulating cabinet connection by an adhesive. The second support feet 53 abut against the ground to stably support the support plate 51. An accommodation groove for accommodating the lower plate part of the connecting pipeline is provided at the upper end of the support plate 51, and the lower part of the connecting pipeline sinks into the accommodation groove. A number of downward-opening clamps 54 are also detachably installed on the support plate 51, and the clamps 54 abut against the upper half of the connecting pipeline 1.

[0041] The implementation principle of this embodiment is as follows: When detection is required in the early morning, the flow rate of the gas in the community decreases significantly and approaches zero, causing the gas pressure to rise, so that the gas pressure is greater than the preset pressure of the first valve 3 and less than or equal to the preset pressure of the second valve 4. Then the first valve 3 closes, so that all the gas is output from the connecting pipeline 1. When the gas passes through the connecting pipeline 1, the flow rate detection module detects and stores the gas flow rate in the storage module. Then, after the detection time arrives, the data transmission module transmits the data to the corresponding electronic device. Then, the staff can judge whether there is a gas leak according to the change of the data.

[0042] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A leakage measuring device for a gas pressure regulating cabinet, characterized in that: include, A connecting pipeline (1), one end of the connecting pipeline (1) is connected to the medium-pressure air inlet of the gas pressure regulating cabinet, and the other end of the connecting pipeline (1) is connected to the low-pressure air outlet of the gas pressure regulating cabinet; A detection unit (2) is used to detect and record the flow of the gas, and the detection unit (2) is arranged on the connecting pipeline (1) to detect the gas in the connecting pipeline (1); and a first valve (3) for opening and closing according to the pressure of the gas to control whether the gas flows only into the connecting pipeline (1), wherein the first valve (3) is arranged on the pressure regulating circuit of the gas pressure regulating cabinet itself, close to the medium-pressure air inlet of the gas pressure regulating cabinet; The closing pressure of the first valve (3) is smaller than the pressure range to be detected by the detection unit (2).

2. The leakage measuring device for a gas pressure regulating cabinet according to claim 1, characterized in that: The connecting pipeline (1) is provided with a second valve (4), and the closing pressure of the second valve (4) is greater than the closing pressure of the first valve (3).

3. The leakage measuring device for a gas pressure regulating cabinet according to claim 1, characterized in that: The connecting pipeline (1) is made of anti-gnaw pipe material.

4. The leakage measuring device for a gas pressure regulating cabinet according to claim 1, characterized in that: The connecting pipeline (1) is connected to the medium-pressure air inlet and the low-pressure air outlet of the gas pressure regulating cabinet via a cock.

5. The leakage measuring device for a gas pressure regulating cabinet according to claim 1, characterized in that: The detection unit (2) comprises a flow detection module and a storage module for recording detection data of the flow detection module, the storage module is electrically connected to the flow detection module, and the detection end of the flow detection module is located in the connecting pipeline (1).

6. The leakage measuring device for a gas pressure regulating cabinet according to claim 5, characterized in that: The storage module is also connected to a wireless transmission module for transmitting the data stored in the storage module to a corresponding electronic device, and the wireless transmission module is electrically connected to the storage module.

7. The leakage measuring device for a gas pressure regulating cabinet according to claim 1, characterized in that: A support frame (5) is arranged outside the connecting pipeline (1), and the support frame (5) is connected to the gas pressure regulating cabinet.

8. The leakage measuring device for a gas pressure regulating cabinet according to claim 7, characterized in that: The support frame (5) is detachably connected to the gas pressure regulating cabinet, and the upper end of the support frame (5) abuts against the lower end of the connecting pipeline (1).

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