Gas pressure regulating cabinet safety valve leakage detection device

Abstract

The utility model relates to the technical field of fuel gas pressure regulating cabinets, in particular to a fuel gas pressure regulating cabinet safety valve leakage detection device which comprises a conversion box, a safety valve pipeline and a connecting flange, one end of the safety valve pipeline is fixedly connected with the inside of the conversion box, and a fuel gas safety control shunting detection structure is arranged on the inner side of the conversion box. And the other side of the conversion box is provided with a gas pressure relief and exhaust structure. According to the gas pressure regulating cabinet safety valve leakage detection device, the first valve is closed, the second valve is opened, the barometer is used for detecting the gas pressure in the space below the partition plate controlled by the second valve, then the alarm is electrically connected with the barometer, and when the gas pressure value of the barometer reaches a preset value, the alarm gives an alarm. Therefore, the gas flow is controlled to move through the valve in the sealing conversion box, the device is safer and more reasonable, the leakage problem caused by abrasion of the up-down sliding plate is reduced, and the use safety of the gas pressure regulating cabinet safety valve leakage detection device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas pressure regulating cabinet, specifically to a gas pressure regulating cabinet safety valve leakage detection device. BACKGROUND

[0002] The gas pressure regulating cabinet is one of the key equipment of the gas delivery system, and the main function is to adjust and stabilize the system pressure, and the safety valve is an important part in the gas pressure regulating cabinet, a valve core is slidably arranged in the valve body, the valve core and the valve body are provided with a reset spring, when the pressure in the system is too large, the valve core will slide under the action of gas pressure to overcome the elastic force of the reset spring, at this time the valve body of the safety valve is opened, and the gas in the system is released, and the system gas pressure drops.

[0003] For example, the authorized announcement number "CN221882960U" is named a gas pressure regulating cabinet safety valve leakage detection device, which simplifies the operation process and solves the technical problems of complex detection operation and poor safety in the prior art. The existing gas pressure regulating cabinet safety valve leakage detection device uses a vertical manual sliding baffle to limit the delivery position of the gas safety valve, but gas is a gas and sealing is very difficult. The sliding baffle has no additional sealing limiting structure, and with long-time and repeated up-and-down sliding, the sliding baffle will rub with the inner wall of the conversion box, so the gap between the baffle and the conversion box connection position becomes larger and larger, so the conversion box is easy to leak between the gas delivery and detection, which greatly affects the use safety of the gas pressure regulating cabinet safety valve leakage detection device. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the problem of low use safety of the existing gas pressure regulating cabinet safety valve leakage detection device, and provides a gas pressure regulating cabinet safety valve leakage detection device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A gas pressure regulating cabinet safety valve leakage detection device is designed, which comprises a conversion box, a safety valve pipeline and a connecting flange, the connecting flange is fixedly connected in the middle of the safety valve pipeline, one end of the safety valve pipeline is fixedly connected with the inside of the conversion box, the inside of the conversion box is provided with a gas safety control shunt detection structure, the other side of the conversion box is provided with a gas pressure relief exhaust structure, and the top end of the conversion box is provided with a safety valve leakage backup detection structure.

[0007] Preferably, the gas safety control shunt detection structure includes a partition plate and a detection tube, the partition plate is fixedly connected in the inside of the conversion box, a first valve is fixedly connected above the partition plate, a second valve is fixedly connected at the lower end of the partition plate, the detection tube is fixedly connected at the lower end of the outer wall of the conversion box, the front end of the detection tube is arranged opposite to the rear side of the second valve, control switches are fixedly connected outside the first valve and the second valve.

[0008] Preferably, the gas pressure relief structure includes an alarm and a relief pipe, the relief pipe is fixedly connected above the outer wall of the conversion box, the alarm is fixedly installed at the end of the detection tube, a gas pressure gauge is fixedly installed at the lower end of the alarm, a return pipe is fixedly connected to the outer wall of the relief pipe, and the other end of the return pipe is fixedly connected to the end of the detection tube.

[0009] Preferably, the inside end of the relief pipe is communicated with the rear side of the first valve, and a fire damper is fixedly installed at the other end of the relief pipe.

[0010] Preferably, the safety valve leakage backup detection structure includes a gas leakage detector and a gas leakage detection probe, the gas leakage detector is fixedly installed at the top end of the conversion box, a winding hook is fixedly connected to the outer wall of the gas leakage detector, a connecting line is movably wound outside the winding hook, and the gas leakage detection probe is fixedly installed at the end of the connecting line.

[0011] Preferably, an emergency valve is fixedly installed at the lower end of the conversion box, and the inside of the emergency valve is communicated with the inside of the conversion box.

[0012] The gas pressure relief structure has the beneficial effects that when the gas leakage is detected, the first valve is closed and the second valve is opened, after the second valve is opened, the detection tube and the gas pressure gauge are communicated with the space below the partition plate controlled by the second valve, the gas pressure gauge is used for detecting the gas pressure in the space below the partition plate controlled by the second valve, then the alarm is electrically connected with the gas pressure gauge, when the gas pressure value of the gas pressure gauge reaches the preset value, the alarm will issue an alarm, therefore, the movement of the air flow is controlled by the sealing of the internal valve of the conversion box, which is more safe and reasonable, the leakage problem caused by the wear of the upper and lower sliding plates is reduced, and the use safety of the gas pressure relief structure is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0014] Figure 2 It is Figure 1 a front sectional view schematic view;

[0015] Figure 3 It isFigure 1 a top view of the top surface of the device;

[0016] Figure 4 is Figure 2 an enlarged sectional view of part A in the middle;

[0017] Figure 5 is Figure 2 an enlarged sectional view of part B in the middle;

[0018] Figure 6 is Figure 2 an enlarged sectional view of part C in the middle.

[0019] In the figure: 1, conversion box, 2, safety valve pipeline, 3, connecting flange, 4, gas safety control shunt detection structure, 41, partition plate, 42, first valve, 43, second valve, 44, detection tube, 45, control switch, 5, gas pressure relief discharge structure, 51, alarm, 52, gas pressure gauge, 53, return pipe, 54, discharge pipe, 6, emergency valve, 7, safety valve leakage backup detection structure, 71, gas leakage detector, 72, winding hook, 73, connecting line, 74, gas leakage detection probe, 8, flame arrestor. DETAILED DESCRIPTION

[0020] The utility model will be further described below in combination with the drawings:

[0021] Example 1:

[0022] Please refer to Figures 1-6 In the embodiment, a gas pressure regulating cabinet safety valve leakage detection device includes a conversion box 1, a safety valve pipeline 2 and a connecting flange 3. The connecting flange 3 is fixedly connected to the middle of the safety valve pipeline 2. The connecting flange 3 is used to connect the safety valve pipeline 2 and the conversion box 1 on the other side. One end of the safety valve pipeline 2 is fixedly connected to the inside of the conversion box 1. The inside of the conversion box 1 is provided with a gas safety control shunt detection structure 4. The other side of the conversion box 1 is provided with a gas pressure relief discharge structure 5. The top end of the conversion box 1 is provided with a safety valve leakage backup detection structure 7.

[0023] The gas safety control shunt detection structure 4 includes a partition plate 41 and a detection tube 44. The conversion box 1 is a stainless steel metal rectangular hollow box. The partition plate 41 divides the inside of the conversion box 1 into two spaces with similar sizes. The space above the partition plate 41 is controlled by a first valve 42. The space below the partition plate 41 is controlled by a second valve 43. The first valve 42 and the second valve 43 can be manually rotated to open and close by a control switch 45 outside.

[0024] The partition plate 41 is fixedly connected in the inside of the conversion box 1, the first valve 42 is fixedly connected above the partition plate 41, the second valve 43 is fixedly connected at the lower end of the partition plate 41, the detection pipe 44 is fixedly connected at the lower end of the outer wall of the conversion box 1, when detecting gas leakage, the first valve 41 is closed, the second valve 43 is opened, after the second valve is opened, the detection pipe 44 and the gas pressure gauge 52 connected therewith are communicated with the space below the partition plate 41 controlled by the second valve 43, and the gas pressure gauge 52 is used for detecting the gas pressure in the space below the partition plate 41 controlled by the second valve 43.

[0025] Then the alarm 51 is electrically connected with the gas pressure gauge 52, when the gas pressure value of the gas pressure gauge 52 reaches the preset value, the alarm 51 will issue an alarm, the front end of the detection pipe 44 is arranged opposite to the rear side of the second valve 43, the control switch 45 is fixedly connected outside the first valve 42 and the second valve 43;

[0026] The conversion box 1 is a stainless steel rectangular hollow box, the partition plate 41 divides the inside of the conversion box 1 into two spaces with similar sizes, the space above the partition plate 41 is controlled by the first valve 42, the space below the partition plate 41 is controlled by the second valve 43, the first valve 42 and the second valve 43 can be manually rotated to be opened and closed through the control switch 45 outside, when detecting gas leakage, the first valve 41 is closed, and the second valve 43 is opened.

[0027] After the second valve is opened, the detection pipe 44 and the gas pressure gauge 52 connected therewith are communicated with the space below the partition plate 41 controlled by the second valve 43, and the gas pressure gauge 52 is used for detecting the gas pressure in the space below the partition plate 41 controlled by the second valve 43, then the alarm 51 is electrically connected with the gas pressure gauge 52, when the gas pressure value of the gas pressure gauge 52 reaches the preset value, the alarm 51 will issue an alarm, therefore, by sealing the valve control airflow in the inside of the conversion box 1, it is more safe and reasonable, the leakage problem caused by the wear of the upper and lower sliding plates is reduced, and the use safety of the gas pressure regulating cabinet safety valve leakage detection device is improved.

[0028] The gas pressure relief and discharge structure 5 includes the alarm 51 and the flow discharge pipe 54, the flow discharge pipe 54 is fixedly connected above the outer wall of the conversion box 1, and the alarm 51 is fixedly installed at the end of the detection pipe 44.

[0029] When the gas pressure in the gas pressure regulating cabinet pipeline system is too large, the gas passes through the output end of the safety valve pipe 2, the first valve 42 is opened, and the second valve 43 is closed, so that the excessive gas pressure can be discharged along the other side of the drain pipe 54, which is used to protect the gas pressure stability of the safety valve of the gas pressure regulating cabinet, and the backflow pipe 53 can connect the gas discharged from the other end of the alarm 51 to the inside of the drain pipe 54, and the lower end of the alarm 51 is fixedly installed with a gas pressure gauge 52, the outer wall of the drain pipe 54 is fixedly connected with a backflow pipe 53, and the other end of the backflow pipe 53 is fixedly connected with the end of the detection pipe 44.

[0030] The inner side end of the drain pipe 54 is connected with the rear side of the first valve 42, and the other end of the drain pipe 54 is fixedly installed with a flame arrestor 8, which is arranged at the other end of the drain pipe 54 and can cut off the flame after the gas at the end bursts to ensure the safety of the rear pipeline.

[0031] Working principle:

[0032] The gas pressure regulating cabinet safety valve leakage detection device is used for detecting whether the gas pressure regulating cabinet safety valve has gas leakage, the gas pressure regulating cabinet safety valve is a mature existing technology, the gas pressure regulating cabinet is one of the key equipment of the gas conveying system, and the main function is to adjust and stabilize the system pressure. The safety valve is an important part in the gas pressure regulating cabinet, a valve core is slidably arranged in the valve body, the valve core is provided with a reset spring in the valve body, when the pressure in the system is too large, the valve core will slide under the action of the gas pressure to overcome the elastic force of the reset spring, at this time the valve body of the safety valve is opened, the gas in the system is released, and the system pressure is reduced. The gas pressure regulating cabinet safety valve leakage detection device needs to install and fix the safety valve pipe 2 and the conversion box 1 in the gas pressure regulating cabinet;

[0033] Safety detection structure of the gas pressure regulating cabinet safety valve leakage detection device:

[0034] By converting the box 1 into a stainless steel metal rectangular hollow box, the partition plate 41 separates the inside of the conversion box 1 into two spaces with similar space sizes, the space above the partition plate 41 is controlled by the first valve 42, and the space below the partition plate 41 is controlled by the second valve 43, both the first valve 42 and the second valve 43 can be manually rotated by the control switch 45 outside to open and close, when detecting gas leakage, close the first valve 41, open the second valve 43, after the second valve is opened, the gas pressure gauge 52 connected with the detection pipe 44 is in communication with the space below the partition plate 41 controlled by the second valve 43, the gas pressure gauge 52 is used to detect the gas pressure in the space below the partition plate 41 controlled by the second valve 43, then the alarm 51 is electrically connected with the gas pressure gauge 52, when the gas pressure value of the gas pressure gauge 52 reaches the preset value, the alarm 51 will issue an alarm, therefore, by sealing the inside valve of the conversion box 1 to control the movement of the gas flow, it is more safe and reasonable, and reduces the leakage problem caused by the wear of the upper and lower sliding plates;

[0035] Safety alarm pressure relief structure of gas pressure regulating cabinet safety valve leakage detection device:

[0036] The alarm 51 is fixedly installed at the end of the detection pipe 44, when the gas pressure in the gas pressure regulating cabinet pipeline system is too large, the gas passes through the output end safety valve pipe 2 of the safety valve, the first valve 42 is opened and the second valve 43 is closed, so that the excessive gas pressure can be discharged along the other side of the flow pipe 54, which is used to protect the gas pressure stability of the safety valve of the gas pressure regulating cabinet, and the backflow pipe 53 can connect the gas discharged from the other end of the alarm 51 to the inside of the flow pipe 54.

[0037] Embodiment 2:

[0038] Please refer to Figures 1-6 In this embodiment, a gas pressure regulating cabinet safety valve leakage detection device includes a safety valve leakage backup detection structure 7, which includes a gas leakage detector 71 and a gas leakage detection probe 74, the gas leakage detector 71 is fixedly installed at the top end of the conversion box 1, the gas leakage detector 71 and the gas leakage detection probe 74 both belong to the existing structure, the gas leakage detector 71 is an XC11B gas leakage detector which can hold the gas leakage detection probe 74 to detect more accurately, and the outer wall of the gas leakage detector 71 is fixedly connected with a winding hook 72.

[0039] The connecting line 74 can be wound outside the winding hook 72 for multiple turns, facilitating the storage and use of the gas leakage detection probe 74. The connecting line 73 is movably wound outside the winding hook 72. The gas leakage detection probe 74 is fixedly installed at the end of the connecting line 73. The emergency valve 6 is fixedly installed at the lower end of the conversion box 1. The emergency valve 6 belongs to a kind of ball valves. When the pressure in the conversion box 1 is too large and cannot be removed for a short time, the emergency valve 6 can be manually opened, which can be used for emergency situation processing. The inside of the emergency valve 6 is in communication with the inside of the conversion box 1.

[0040] Working principle:

[0041] The gas leakage detector 71 and the gas leakage detection probe 74 both belong to existing structures. The gas leakage detector 71 is an XC11B gas leakage detector, which can be handheld to detect the gas leakage detection probe 74 more accurately. The connecting line 74 can be wound outside the winding hook 72 for multiple turns, facilitating the storage and use of the gas leakage detection probe 74. The emergency valve 6 is fixedly installed at the lower end of the conversion box 1. The emergency valve 6 belongs to a kind of ball valves. When the pressure in the conversion box 1 is too large and cannot be removed for a short time, the emergency valve 6 can be manually opened, which can be used for emergency situation processing.

[0042] Although the present application has been illustrated and described with reference to the preferred embodiments, it should be understood that various modifications and changes can be made in the form and details of the application without departing from the spirit and scope of the application.

Claims

1. A gas pressure regulating cabinet safety valve leakage detection device, comprising a conversion box (1), a safety valve pipeline (2) and a connecting flange (3), the connecting flange (3) is fixedly connected in the middle of the safety valve pipeline (2), one end of the safety valve pipeline (2) is fixedly connected with the inside of the conversion box (1), characterized in that: The inner side of the conversion box (1) is provided with a gas safety control shunt detection structure (4), the other side of the conversion box (1) is provided with a gas pressure relief discharge structure (5), and the top end of the conversion box (1) is provided with a safety valve leakage backup detection structure (7).

2. The pressure regulating cabinet safety valve leak detection apparatus of claim 1, wherein: The gas safety control shunt detection structure (4) comprises a partition plate (41) and a detection pipe (44), the partition plate (41) is fixedly connected in the conversion box (1), a first valve (42) is fixedly connected above the partition plate (41), a second valve (43) is fixedly connected to the lower end of the partition plate (41), the detection pipe (44) is fixedly connected to the lower end of the outer wall of the conversion box (1), the front end of the detection pipe (44) is arranged opposite to the rear side of the second valve (43), and the outer sides of the first valve (42) and the second valve (43) are fixedly connected with a control switch (45).

3. The pressure regulating cabinet safety valve leak detection apparatus of claim 1, wherein: The gas pressure relief discharge structure (5) comprises an alarm (51) and a discharge pipe (54), the discharge pipe (54) is fixedly connected to the upper end of the outer wall of the conversion box (1), the alarm (51) is fixedly installed at the end of the detection pipe (44), a gas pressure gauge (52) is fixedly installed at the lower end of the alarm (51), a return pipe (53) is fixedly connected to the outer wall of the discharge pipe (54), and the other end of the return pipe (53) is fixedly connected with the end of the detection pipe (44).

4. The pressure regulating cabinet safety valve leak detection apparatus of claim 3, wherein: The inner side end of the discharge pipe (54) is communicated with the rear side of the first valve (42), and the other end of the discharge pipe (54) is fixedly installed with a fire arrestor (8).

5. The pressure regulating cabinet safety valve leak detection apparatus of claim 1, wherein: The safety valve leakage backup detection structure (7) comprises a gas leakage detector (71) and a gas leakage detection probe (74), the gas leakage detector (71) is fixedly installed at the top end of the conversion box (1), the outer wall of the gas leakage detector (71) is fixedly connected with a winding hook (72), the outer side of the winding hook (72) is movably wound with a connecting line (73), and the gas leakage detection probe (74) is fixedly installed at the end of the connecting line (73).

6. The pressure regulating cabinet safety valve leak detection apparatus of claim 1, wherein: The lower end of the conversion box (1) is fixedly installed with an emergency valve (6), and the inner side of the emergency valve (6) is communicated with the inside of the conversion box (1).

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