Protection early warning device of pressure regulating box

Abstract

The utility model relates to the technical field of pressure regulating boxes, in particular to a protection early warning device of a pressure regulating box. Comprising a pressure regulating box, a fuel gas detector, a connecting plate and the like, the pressure regulating box is fixedly connected with two connecting plates; the connecting plates are jointly and fixedly connected with a fuel gas detector, and the fuel gas detector is provided with a detection part. Sealing control is formed in the two sealing covers, so that the situation that a large amount of dust falls and is attached to the detection part of the gas detector during overhauling, the sensitivity of the detection part is caused, and then the detection result is influenced can be avoided; gas enters the sealed space between the two sealing covers through the gas inlet pipe, at the moment, the gas content in the sealed space is increased, and if a detection part of the gas detector is influenced by attached dust, a signal is sent out to enable the alarm to sound, so that whether the gas detector fails or not is detected; and the cleaning cover at the upper part is used for sucking air into the newly formed sealed space to clean the detection part, so that the service life of the gas detector is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of pressure regulating box technology, and in particular to a protective early warning device for a pressure regulating box. Background Technology

[0002] The pressure regulating box is used to stabilize and regulate the gas pressure and ensure safe gas supply, while the gas detector monitors the leakage concentration in real time, alarms or cuts off the gas supply in case of danger, and together improves gas safety.

[0003] When a gas detector is used for a long time, dust may clog the sensor pores, affecting the detection sensitivity and thus the detection results. Since the parts inside the pressure regulating box need to be maintained regularly, dust on the parts can easily fall off during maintenance, causing a large amount of dust to quickly accumulate on the detector. Utility Model Content

[0004] To overcome the drawback that dust easily falls off parts during maintenance, causing a large amount of dust to quickly accumulate on the detector, this utility model provides a protective early warning device for a voltage regulating box.

[0005] The technical implementation scheme of this utility model is as follows: a protective early warning device for a pressure regulating box, including a pressure regulating box, a gas detector and a connecting plate; the pressure regulating box is fixedly connected to two connecting plates; the connecting plates are jointly fixedly connected to a gas detector, which is provided with a detection part; it also includes an electric push rod and a sealing cover; the pressure regulating box is fixedly connected to two electric push rods; the telescopic parts of the two electric push rods face opposite sides, and each telescopic part of the electric push rod is connected to a sealing cover.

[0006] More preferably, the sealing cover is made of hard rubber.

[0007] More preferably, it also includes an air intake pipe connected to the lower sealing cover; the air intake pipe is connected to the gas pipeline and is equipped with an electrically controlled valve.

[0008] More preferably, it also includes an exhaust pipe connected to the upper sealing cover; the exhaust pipe passes through the pressure regulating box.

[0009] More preferably, it also includes a fixing block fixed to each of the telescopic parts of each electric push rod; each sealing cover is slidably connected to the corresponding fixing block; each sealing cover and the corresponding fixing block are jointly fixed with at least two springs; each fixing block is fixed with a cleaning cover; and the exhaust pipe is connected to the upper cleaning cover.

[0010] More preferably, the air outlet of the air inlet pipe is directly opposite the cleaning hood.

[0011] More preferably, it also includes two blocking frames fixed to all connecting plates, with the blocking frames positioned vertically and a limiting block fixed to each of the two sealing covers on opposite sides.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] The two sealed covers will form a sealed control, which will prevent a large amount of dust from falling and adhering to the detection part of the gas detector during maintenance, thus reducing the sensitivity of the detection part and affecting the detection results.

[0014] Gas enters the sealed space inside the two sealed covers through the intake pipe. At this time, the gas content in the sealed space increases. If the detection part of the gas detector is affected by the adhering dust, it will send a signal to make the alarm sound, thereby detecting whether the gas detector is malfunctioning.

[0015] The newly formed sealed space is drawn in through the cleaning hood above, which removes the dust adhering to the detection part, thus cleaning the detection part, extending the service life of the gas detector, and ensuring the detection effect of the gas detector. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the protective and early warning device for the pressure regulating box of this utility model.

[0017] Figure 2 The diagram shows the structure of the pressure regulating box, gas detector, electric push rod, sealing cover, air inlet pipe, exhaust pipe, connecting plate and blocking frame of the protective early warning device for the pressure regulating box of this utility model.

[0018] Figure 3 The diagram shows the structure of the gas detector, electric push rod, sealing cover, air inlet pipe, exhaust pipe, connecting plate, blocking frame and limiting block of the protective early warning device for the pressure regulating box of this utility model.

[0019] Figure 4 This is a structural cross-sectional view of the sealing cover of the protective and early warning device for the pressure regulating box of this utility model;

[0020] Figure 5 This is a structural cross-sectional view of the sealing cover and cleaning cover of the protective and early warning device for the pressure regulating box of this utility model.

[0021] The above-mentioned attached drawings include the following reference numerals: 1-pressure regulating box, 2-gas detector, 3-electric push rod, 4-sealing cover, 5-inlet pipe, 6-exhaust pipe, 7-connecting plate, 101-fixing block, 102-spring, 103-cleaning cover, 111-blocking frame, 112-limiting block, 2001-detection unit. Detailed Implementation

[0022] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0023] Example

[0024] A protective early warning device for a pressure regulating box 1, such as Figure 1-5 As shown, it includes a pressure regulating box 1, a gas detector 2, and a connecting plate 7; the pressure regulating box 1 is fixedly connected to two connecting plates 7; the connecting plates 7 are jointly fixedly connected to the gas detector 2, which is provided with a detection part 2001; the pressure regulating box 1 is provided with gas pipelines, pressure regulators, and alarms, etc.

[0025] It also includes an electric push rod 3 and a sealing cover 4; the pressure regulating box 1 is fixedly connected to two electric push rods 3; the telescopic parts of the two electric push rods 3 face each other, and each telescopic part of the electric push rod 3 is connected to a sealing cover 4.

[0026] The sealing cover 4 is made of hard rubber to ensure the airtightness when the two sealing covers 4 are put together.

[0027] It also includes an air inlet pipe 5 connected to the lower sealing cover 4; the air inlet pipe 5 is connected to the gas pipeline, and the air inlet pipe 5 is equipped with an electrically controlled valve.

[0028] It also includes an exhaust pipe 6 connected to the upper sealing cover 4; the exhaust pipe 6 passes through the pressure regulating box 1.

[0029] It also includes a fixing block 101 that is fixedly attached to the telescopic part of each electric push rod 3;

[0030] Each sealing cover 4 is slidably connected to a corresponding fixing block 101; each sealing cover 4 and its corresponding fixing block 101 are jointly fixed with two springs 102; each fixing block 101 is fixed with a cleaning cover 103; the exhaust pipe 6 is connected to the upper cleaning cover 103.

[0031] The air outlet of the air inlet pipe 5 is directly opposite the cleaning cover 103. The cleaning cover 103 blocks the incoming gas, preventing the gas from being sprayed directly onto the detection unit 2001 and avoiding damage to the sensor due to excessively high local concentration.

[0032] It also includes two blocking frames 111 fixed to all connecting plates 7, with the blocking frames 111 being distributed vertically and vertically, and each of the two sealing covers 4 having a limiting block 112 fixed to its opposite side.

[0033] The specific work steps are as follows:

[0034] The external air pump is connected to the exhaust pipe 6.

[0035] During normal use, the detection unit 2001 of the gas detector 2 detects the gas content in the pressure regulating box 1. When the gas content exceeds the standard, it indicates that a gas leak has occurred. At this time, the gas detector 2 sends a signal to the alarm, which alerts the surrounding personnel to the gas leak.

[0036] When performing regular maintenance on the parts inside the pressure regulating box 1, first control the electric push rod 3 to push the two sealing covers 4 towards the detection part 2001 of the gas detector 2, so that the two sealing covers 4 are together and tightly attached to the root of the detection part 2001. At this time, a seal will be formed inside the two sealing covers 4, which can prevent a large amount of dust from falling and adhering to the detection part 2001 of the gas detector 2 during maintenance, thus affecting the sensitivity of the detection part 2001 and the detection results.

[0037] Considering that dust may accumulate on the detection unit 2001 of the gas detector 2 during daily use, thus affecting the detection results, the electronically controlled valve on the intake pipe 5 is opened during maintenance. At this time, the gas in the gas pipe enters the sealed space inside the two sealing covers 4 through the intake pipe 5. The gas content in the sealed space increases. If the detection unit 2001 of the gas detector 2 is affected by the dust, it will send a signal to sound the alarm, thereby detecting whether the gas detector 2 is malfunctioning. If it is malfunctioning, the gas detector 2 can be replaced directly to ensure that the gas detector 2 can be used normally and avoid safety hazards.

[0038] After maintenance, the electric push rod 3 drives the sealing cover 4 back to its original position, exposing the detection unit 2001 for gas detection. When the sealing cover 4 moves, gas will escape. To prevent workers from inhaling the gas and thus endangering their health, after the gas detector 2 is tested, the external air pump is turned on. The external air pump draws out the gas sealed in the two sealing covers 4 through the exhaust pipe 6 and then discharges it outdoors, thus preventing workers from inhaling the gas and endangering their health.

[0039] After the gas is sucked away, the telescopic part of the control electric push rod 3, through the fixing block 101, drives the cleaning cover 103 to move the detection part 2001 again, so that the left and right sides of the cleaning cover 103 are in close contact with the detection part 2001. The cleaning covers 103 will come into contact with each other, thus forming a new sealed space. Since the cleaning cover 103 is close to the detection part 2001, the sealing cover 4 cannot move because it is in contact with the gas detector 2, so the spring 102 is in a compressed state. Then the external air pump sucks out again, and the new gas is then drawn out through the upper cleaning cover 103. The sealed space is used for air intake, which removes the dust adhering to the detection unit 2001, thereby cleaning the detection unit 2001, extending the service life of the gas detector 2, and ensuring the detection effect of the gas detector 2. When the cleaning work is completed, the electric push rod 3 drives the blocking frame 111 and other parts back to their original positions, the compressed spring 102 rebounds and pushes the sealing cover 4, causing the sealing cover 4 to move upward relative to the fixed block 101. The sealing cover 4 stops moving after being blocked by the cleaning cover 103, and then it is driven down to its original position by the electric push rod 3.

[0040] It is important to note that a larger space allows the gas to diffuse evenly, more closely resembling a real leak scenario, ensuring the reliability and representativeness of the test results. Therefore, the sealed space formed by the two sealing covers 4 is relatively large, and the outlet of the air inlet pipe 5 is directly opposite the cleaning cover 103. The cleaning cover 103 blocks the incoming gas, preventing the gas from being sprayed directly onto the detection unit 2001 and avoiding damage to the sensor due to excessively high local concentrations.

[0041] When the dust is sucked away, the rebound force of the spring 102 constantly presses the detection part 2001 of the gas detector 2 through the sealing cover 4, which can easily cause damage to the detection part 2001. Therefore, when the sealing cover 4 moves, it will drive the limit block 112 to move. When the sealing cover 4 contacts the detection part 2001, the limit block 112 will contact the blocking frame 111. When the control electric push rod 3 drives the cleaning cover 103 to move for cleaning, when the spring 102 rebounds and presses the sealing cover 4, the blocking frame 111 will block the limit block 112, thereby effectively preventing the sealing cover 4 from pressing the detection part 2001 too much and avoiding damage to the detection part 2001.

[0042] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by means of equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A protective early warning device for a pressure regulating tank, comprising a pressure regulating tank (1), a gas detector (2) and a connecting plate (7); the pressure regulating tank (1) is fixedly connected with two connecting plates (7); the connecting plates (7) are fixedly connected with the gas detector (2) together, and the gas detector (2) is provided with a detection part (2001); characterized in that, It also includes electric push rod (3) and seal cover (4), the pressure regulating tank (1) is fixed with two electric push rod (3), the telescopic part of two electric push rod (3) is opposite, each electric push rod (3) is connected with a seal cover (4) on the telescopic part.

2. The protective warning device for a pressure regulating tank according to claim 1, wherein The seal cover (4) is made of hard rubber.

3. A protective warning device for a pressure regulating tank according to any one of claims 1-2, characterized in that It also includes the air inlet pipe (5) communicated with the lower seal cover (4), the air inlet pipe (5) is communicated with the gas pipeline, and the air inlet pipe (5) is provided with an electric control valve.

4. The overvoltage protection warning device for a surge tank according to claim 3, characterized in that It also includes the exhaust pipe (6) communicated in the upper seal cover (4), the exhaust pipe (6) penetrates the pressure regulating tank (1).

5. A protective warning device for a pressure regulating tank as defined in claim 4, characterized in that It also includes a fixed block (101) fixed on the telescopic part of each electric push rod (3), each seal cover (4) is slidably connected with the corresponding fixed block (101), each seal cover (4) is fixed with at least two springs (102) together with the corresponding fixed block (101), each fixed block (101) is fixed with a cleaning cover (103), and the exhaust pipe (6) is communicated with the upper cleaning cover (103).

6. A protective warning device for a pressure regulating tank as defined in claim 5, characterized in that The air outlet of the air inlet pipe (5) is opposite to the cleaning cover (103).

7. The overvoltage protection warning device for a surge tank according to claim 5, characterized in that It also includes two blocking frames (111) fixed on all the connecting plates (7), the blocking frames (111) are arranged up and down, and each of the two seal covers (4) is fixed with a limiting block (112) on the opposite side.

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