A detachable CNG leakage alarm device applicable to multiple pipe diameters

Abstract

The present invention relates to a detachable CNG leakage alarm device applicable to multiple pipe diameters, comprising a CNG leakage sensor and a CNG leakage alarm; the CNG leakage sensor is installed on the inner wall of the box body, and the CNG leakage alarm is installed on the outer wall of the box body; a battery and a signal transmitting module are further arranged on the inner wall of the box body, and the battery, the signal transmitting module, the CNG leakage sensor and the CNG leakage alarm are electrically connected to each other; CNG pipe ports are opened at both ends of the box body, and pipe diameter adjusting mechanisms are arranged on the inner walls at both ends of the box body; the box body comprises a left box body and a right box body, and the left box body and the right box body are detachably installed. The present invention is integrally installed, does not require additional power supply configuration, and is applicable to working environments under multiple pipe diameters.

Description

Technical Field

[0001] The present invention relates to a natural gas leakage alarm device, and particularly to a detachable CNG leakage alarm device applicable to multiple pipe diameters. Background Art

[0002] In the process of purifying coalbed methane to prepare CNG, with the aging of equipment and non-standard installation operations, the connection between the stop valve and the pipeline may experience phenomena such as welding opening, pitting corrosion, and rusting, which may lead to leakage of coalbed methane or product gas in the pipeline, not only causing waste of resources but also posing an explosion risk.

[0003] Therefore, a detection device needs to be installed in places with natural gas pipelines to timely detect whether there is natural gas leakage. The detection devices in the prior art include two parts: a sensor and an alarm. When in use, the sensor is installed on the natural gas pipeline, and the alarm is connected to the power supply through a wire. During installation, it is necessary to ensure both the signal receiving range of the sensor and the alarm, and also ensure the connection between the alarm and the power supply, which has great limitations in use. Moreover, the sensors in the prior art are usually fixedly installed on the natural gas pipeline using components such as splints. The installation and disassembly operations are cumbersome, which is not conducive to maintenance and replacement. Additionally, sensors of different sizes need to be equipped for different working condition pipelines, increasing costs. At the same time, the wire connecting the alarm to the power supply is easily accidentally touched and disconnected from the power supply, unable to give an alarm in a timely manner, posing a safety hazard, and the messy wires affect the aesthetics of the working condition environment. Summary of the Invention

[0004] In view of the above problems existing in the prior art, the present invention designs a detachable CNG leakage alarm device applicable to multiple pipe diameters, which solves the problem of large installation limitations of sensors and alarms in the prior art. Moreover, the alarm of the present invention is applicable to working condition pipelines with different pipe diameters.

[0005] The technical solution of the present invention is as follows:

[0006] A detachable CNG leakage alarm device applicable to multiple pipe diameters includes a CNG leakage sensor and a CNG leakage alarm; the CNG leakage sensor is installed on the inner wall of the box body, and the CNG leakage alarm is installed on the outer wall of the box body; a battery and a signal transmission module are also provided on the inner wall of the box body, and the battery, the signal transmission module, the CNG leakage sensor, and the CNG leakage alarm are electrically connected to each other; CNG pipeline ports are opened at both ends of the box body, and pipe diameter adjustment mechanisms are provided on the inner walls at both ends of the box body; the box body includes a left box body and a right box body, and the left box body and the right box body are detachably installed.

[0007] The pipe diameter adjustment mechanism includes fan blades, gears, belts, worm wheels, worms and handles. The gears are installed in an arc shape at intervals on the inner wall of the end face of the box. The belt is sleeved on the gears. One end of the fan blade is rotatably installed on the gears. The other end of the fan blade converges into an arc shape that matches the CNG pipeline. The turbine is installed on the fan blades. The gears, fan blades and turbine are connected by a shaft. The worm and worm wheel are matched and installed on the box through sliding bearings. The two ends of the worm pass through the box and are connected to the handle.

[0008] A rubber sealing sleeve installation groove is provided on one end surface of the fan blade clamping the CNG pipe, and the rubber sealing sleeve is embedded in the rubber sealing sleeve installation groove.

[0009] A spring support is provided on the inner wall of the box, one end of the spring is connected to the spring support, the other end of the spring is connected to the sleeve, the sleeve is sleeved on the worm, and the spring, sleeve, spring support and handle constitute a reset device for the worm gear.

[0010] The left box body and the right box body are docked and installed through a latch and a latch opening. The latch is installed on the left box body or the right box body, and the latch opening matches the latch and is installed on the box body on the other side.

[0011] A hemisphere is rotatably mounted on the left or right box body, and a hemisphere-shaped groove matches the hemisphere and is mounted on the other box body. The hemisphere is rotated to dock with the hemisphere-shaped groove to fix the left and right boxes.

[0012] The battery, signal transmission module, CNG leakage sensor and CNG leakage alarm are installed on the same side box.

[0013] The advantages and effects of the present invention are as follows:

[0014] 1. The adjustable pipe diameter device can make this device suitable for working environments with various pipe diameters. It can be firmly installed on the CNG pipeline by utilizing the self-locking condition of the worm gear, and the reset device can achieve the reset effect so that the device can be repeatedly installed and disassembled.

[0015] 2. The CNG leakage sensor installed in the box detects whether there is leakage at the connection between the stop valve and the pipeline. When the concentration reaches a certain value, a signal will be sent through the alarm outside the box. When the red light is on, leakage occurs, and when the green light is on, everything is safe.

[0016] 3. Through the 5G signal output module in the box, the shut-off valve and pipeline leakage signals can be sent to mobile terminals such as mobile phones in the first time, so that installation and maintenance workers can repair them in the first time, thereby greatly increasing the safety factor and reducing the waste of resources.

[0017] 4. The CNG leakage sensor and the CNG leakage alarm are both installed on the box body and sleeved on the CNG pipeline, which solves the signal reception range limitation of the separate installation of the CNG leakage sensor and the CNG leakage alarm, and there is no need to additionally configure a power supply and wires, saving space and beautifying the environment. Moreover, there is no need to worry about the problem of accidental disconnection between the alarm and the power supply, ensuring real-time and accurate monitoring. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the detachable CNG leakage alarm device applicable to multiple pipe diameters of the present invention;

[0019] Figure 2 It is a schematic structural diagram of one side box body of the detachable CNG leakage alarm device applicable to multiple pipe diameters of the present invention;

[0020] Figure 3 It is a partial enlarged view of the end face of the fan blade of the present invention.

[0021] Figure 4 It is a schematic structural diagram of the hemispherical body embodiment of the present invention.

[0022] In the figure: 1, left box body; 2, stop valve; 3, hemispherical body; 4, handle; 5, worm gear; 6, fan blade; 7, worm; 8, right box body; 9, CNG leakage alarm; 12, bolt; 13, bolt hole; 14, CNG pipeline; 15, CNG pipeline port; 16, explosion-proof battery compartment; 17, spring support; 18, 5G signal transmission module; 19, hemispherical groove; 20, CNG leakage sensor; 21, spring; 22, sleeve; 23, belt; 24, gear; 25, rubber seal installation groove; 26, rubber seal installation and fixing hole; 27, handle. Detailed Embodiments

[0023] The following refers to the drawings and combines specific embodiments to describe the structure of the present invention in detail as follows. Embodiment

[0024] As shown in the figure, a detachable CNG leakage alarm device applicable to multiple pipe diameters includes a CNG leakage sensor 20 and a CNG leakage alarm 9; the CNG leakage sensor 20 is installed on the inner wall of the box body, and the CNG leakage alarm 9 is installed on the outer wall of the box body; a battery and a 5G signal transmission module 18 are also provided on the inner wall of the box body, the battery is installed in the explosion-proof battery compartment 16, and the battery, the 5G signal transmission module 18, the CNG leakage sensor 20 and the CNG leakage alarm 9 are electrically connected to each other and installed on the same side box body; CNG pipeline ports 15 are provided at both ends of the box body, and a pipe diameter adjustment mechanism is provided on the inner walls at both ends of the box body; the box body includes a left box body 1 and a right box body 8, and the left box body and the right box body are detachably installed.

[0025] The described pipe diameter adjusting mechanism includes a fan blade 6, a gear 24, a belt 23, a worm gear 5, a worm 7 and a handle 4. The gear 24 is installed at intervals in an arc shape on the inner wall of the end face of the box body. The belt 23 is sleeved on the gear 24. One end of the fan blade 6 is rotatably installed on the gear 24, and the other end of the fan blade converges into an arc shape matching the CNG pipeline. A rubber seal sleeve installation groove 25 is provided on the end face of the fan blade for clamping one end of the CNG pipeline. The rubber seal sleeve is embedded in the rubber seal sleeve installation groove 25 and fixed through the rubber seal sleeve installation fixing holes. The worm gear 5 is installed on the fan blade 6. The gear 24, the fan blade 6 and the worm gear 5 are connected by a shaft. The worm 7 is matched with the worm gear 5 and installed on the box body through a sliding bearing. Both ends of the worm pass through the box body and are connected to the handle 4.

[0026] A spring support 17 is provided on the inner wall of the box body. One end of a spring 21 is connected to the spring support 17, and the other end of the spring is connected to a sleeve 22. The sleeve 22 is sleeved on the worm 7. The spring 21, the sleeve 22, the spring support 17 and the handle 4 form a reset device for the worm gear and worm.

[0027] The left box body 1 and the right box body 8 are butt - joint installed through pins 12 and pin ports 13. Four pins 12 are installed on the right box body, and four pin ports are installed on the left box body and are matched with the pins.

[0028] A hemispherical body 3 is rotatably installed on the left box body. A hemispherical groove 19 is installed on the right box body and is matched with the hemispherical body. By rotating the hemispherical body 3, the hemispherical body 3 is docked with the hemispherical groove to fix the left and right box bodies, achieving the purpose of firmly installing the left box body 1 and the right box body 8 on the CNG pipeline.

[0029] The working principle and process of the present invention are as follows:

[0030] Rotating the handle 4 drives the movement of the worm gear 5 and the worm 7. The worm gear 5 and the worm 7 drive the belt 23, and the belt 23 drives the gear 24. The rotation angle of the fan blade 6 is adjusted through the gear 24. Due to the self - locking characteristics of the worm gear 5 and the worm 7 and the firm clamping of the pipeline 14 by the rubber seal sleeve installed at the front end of the fan blade 6, the purpose of being applicable to the installation of multiple pipe diameters is achieved.

[0031] The CNG leakage sensor 20 is used to detect the leakage situation at the connection between the stop valve 2 and the CNG pipeline 14. When leakage occurs at the connection between the stop valve 2 and the CNG pipeline 14, the CNG leakage sensor 20 transmits a signal to the CNG leakage alarm 9. The CNG leakage alarm 9 flashes a red light when it receives the signal. Under normal circumstances, the green light of the CNG leakage alarm is always on.

[0032] The signal detected by the CNG leakage sensor 20 is transmitted to the 5G signal transmitting module 18, and the 5G signal transmitting module 18 will transmit the received signal to a mobile terminal such as a mobile phone in the first time to complete the alarm.

[0033] When disassembling the left box body 1 and the right box body 8, move the handle 4, limit and callback through the spring 21 to release the self-locking state of the worm gear 5 and the worm 7, rotate the handle 27 to adjust the angle of the fan blade 6, and at the same time rotate the hemispherical body 3 to achieve the purpose of disassembling the left box body 1 and the right box body 8 for the next use. The handle 27 is connected to the fan blade 6 and the turbine 5 through a shaft.

[0034] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention, and the protection scope of the present invention is not limited by specific embodiments.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable CNG leakage alarm device applicable to multiple pipe diameters, comprising a CNG leakage sensor and a CNG leakage alarm; characterized in that The described CNG leakage sensor is installed on the inner wall of the box body, and the CNG leakage alarm is installed on the outer wall of the box body; a battery and a signal transmission module are also provided on the inner wall of the box body, and the battery, the signal transmission module, the CNG leakage sensor and the CNG leakage alarm are electrically connected to each other; CNG pipeline ports are provided at both ends of the box body, and pipe diameter adjusting mechanisms are provided on the inner walls at both ends of the box body; the box body includes a left box body and a right box body, and the left box body and the right box body are detachably installed; The described pipe diameter adjusting mechanism includes a fan blade, a gear, a belt, a worm wheel, a worm and a handle. The gears are installed at intervals in an arc shape on the inner wall of the end face of the box body. The belt is sleeved on the gears. One end of the fan blade is rotatably installed on the gear, and the other end of the fan blade converges into an arc shape matching the CNG pipeline. The worm wheel is installed on the fan blade. The gear, the fan blade and the worm wheel are connected by a shaft. The worm is matched with the worm wheel and installed on the box body through a sliding bearing. Both ends of the worm pass through the box body and are connected to the handle; A spring support is provided on the inner wall of the box body. One end of the spring is connected to the spring support, and the other end of the spring is connected to the sleeve. The sleeve is sleeved on the worm. The spring, the sleeve, the spring support and the handle form a reset device for the worm and worm wheel; A rubber seal sleeve installation slot is provided on the end face of the fan blade that clamps the CNG pipeline, and the rubber seal sleeve is embedded in the rubber seal sleeve installation slot; The left box body and the right box body are installed by docking the bolt and the bolt hole. The bolt is installed on the left box body or the right box body, and the bolt hole is installed on the other box body in matching with the bolt; A hemisphere is rotatably installed on the left box body or the right box body, and a hemispherical groove is installed on the other box body in matching with the hemisphere. By rotating the hemisphere, the hemisphere is docked with the hemispherical groove to fix the left and right box bodies; 2. The detachable CNG leakage alarm device applicable to multiple pipe diameters according to claim 1, characterized in that The battery, the signal transmission module, the CNG leakage sensor and the CNG leakage alarm are installed on the same side box body.

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