Valve well fuel gas monitoring device

Abstract

The utility model relates to the field of detection equipment, in particular to a valve well fuel gas monitoring device which comprises a waterproof shell, a circuit board arranged in the waterproof shell, a wireless transceiver connected with the circuit board, a water level sensor and a fuel gas probe. The gas probe comprises a sleeve, a gas pipe slidably arranged in the sleeve and a probe body arranged in the sleeve, the gas pipe is provided with a gas hole and a floating part, and the gas pipe can move up and down between a ventilation position and a closed position; the floating part can move upwards to the closed position when being subjected to buoyancy so that the air pipe can prevent the sleeve from being communicated with the outside, and when the air pipe is located at the ventilation position, the air holes communicate the inner side and the outer side of the sleeve. According to the utility model, the circuit board and the gas probe can be protected when being soaked in water, and the problems in the prior art are effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of detection equipment, in particular to a valve well gas monitoring device. Background Art

[0002] Valve wells play a vital role in gas safety monitoring. However, gas leaks in valve wells can easily lead to natural gas accumulation and explosion risks, so gas monitoring devices need to be installed in valve wells. Because the valve well environment is humid, severe water seepage can easily cause the valve to be soaked in water, which will affect the normal use of the valve over time and may even damage it. Therefore, the application of monitoring devices that combine gas monitoring and water level monitoring is gradually increasing. Existing monitoring devices mostly use built-in processors to digitize the electrical signals of gas monitoring elements and water level monitoring elements, and then send them to the outside world through wireless transceiver modules under set conditions to achieve the purpose of intelligent monitoring. For example, a valve well monitoring device disclosed in application number 202320285488.1.

[0003] At present, the existing valve well gas monitoring devices have the following problems: the processor is placed in the box and is easily affected by water immersion, and the gas probe is directly exposed on the outside of the box and is also easily affected by water immersion, making it difficult to monitor and use again after the water level drops. In particular, when the gas probe uses a laser measurement probe, water immersion causes contamination of the optical path inside the probe, affecting the measurement accuracy. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a valve well gas monitoring device, which can protect the circuit board and the gas probe when immersed in water, and effectively solves the problems existing in the prior art.

[0005] In order to solve the above problems, the utility model provides a valve well gas monitoring device, including a waterproof shell, a circuit board arranged in the waterproof shell, a wireless transceiver connected to the circuit board, a water level sensor and a gas probe; the gas probe includes a casing, an air pipe slidably arranged in the casing, and a probe body arranged in the casing, the air pipe is provided with an air hole and a floating part, the air pipe can move up and down between a ventilation position and a closed position, the floating part can move up to the closed position when subjected to buoyancy so that the air pipe blocks the casing from being connected to the outside world, and when the air pipe is in the ventilation position, the air hole connects the inside and outside of the casing.

[0006] Furthermore, the water level sensor is configured as a float sensor, and the water level monitoring lower limit of the water level sensor is lower than that of the gas probe.

[0007] Furthermore, the monitoring device also includes a displacement sensor, which is connected to the circuit board via a wire.

[0008] Furthermore, the waterproof housing includes a metal base plate and an outer cover buckled on the metal base plate, and the circuit board is installed on the metal base plate.

[0009] Furthermore, the outer cover is provided with a transparent window.

[0010] Furthermore, the circuit board is provided with a display screen at a position corresponding to the transparent window.

[0011] Furthermore, the floating portion includes a hollow airbag arranged at the bottom of the trachea.

[0012] Furthermore, a sealing ring is provided between the trachea and the sleeve.

[0013] Furthermore, the sleeve is a metal sleeve, which is bent at the sealing ring position to form a mounting groove, and the sealing ring is sleeved on the mounting groove. The air pipe is a metal air pipe, and a limiting boss is provided at the upper end of the air pipe. The limiting boss can abut against the outer surface of the sleeve, and when the air pipe moves to the ventilation position, it can limit and abut against the bent part of the sleeve.

[0014] Furthermore, the hollow airbag is screwed and connected to the trachea.

[0015] The beneficial effect of the present invention is that it can protect the circuit board and the gas probe when immersed in water, and effectively solves the problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 This is a structural diagram of an embodiment of the present utility model.

[0018] Figure 2 for Figure 1 A schematic side sectional view of the transparent window in the illustrated embodiment.

[0019] Among them: 1. Circuit board; 2. Waterproof shell; 201. Metal base plate; 202. Outer cover; 3. Wireless transceiver; 4. Water level sensor; 5. Gas probe; 501. Casing; 502. Gas pipe; 503. Probe body; 6. Floating part; 7. Displacement sensor; 8. Transparent window; 9. Display screen; 10. Sealing ring; 11. Mounting groove; 12. Limiting boss; 13. Air hole. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0021] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0022] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In this utility model, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integration; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or an interaction between two components. However, the phrase "direct connection" indicates that the two connected entities are not connected through an intermediate structure, but are connected to form a whole through a connecting structure. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0024] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0025] In this utility model, if Figure 1-2As shown, a valve well gas monitoring device is provided, comprising a waterproof shell 2, a circuit board 1 disposed in the waterproof shell 2, a wireless transceiver 3 connected to the circuit board 1, a water level sensor 4 and a gas probe 5;

[0026] The gas probe 5 includes a sleeve 501, an air pipe 502 slidably arranged in the sleeve 501, and a probe body 503 arranged in the sleeve 501. The air pipe 502 is provided with an air hole 13 and a floating part 6. The air pipe 502 can move up and down between a ventilation position and a closed position. The floating part 6 can move up to a closed position when subjected to buoyancy so that the air pipe 502 blocks the sleeve 501 from communicating with the outside world. When the air pipe 502 is in the ventilation position, the air hole 13 connects the inside and outside of the sleeve 501.

[0027] When in use, the monitoring device of the present invention utilizes a waterproof housing 2, thereby protecting the circuit board 1 within the housing 2 when the entire monitoring device is submerged in water, thereby preventing damage to the circuit board 1. Before the water level in the gas well rises, the float 6 is in a low position. At this time, the air hole 13 of the gas pipe 502 is connected to the probe body 503, enabling monitoring of the gas concentration within the valve well. As the water level in the valve well rises, the float 6 gradually raises the gas pipe 502 to a closed position, thereby sealing the sleeve 501 when the water level submerges the probe body 503, thereby preventing the probe body 503 from being affected by water immersion.

[0028] After the water level drops, the air pipe 502 moves downward under its own weight, or is moved downward by manpower. At this time, if there is no water in the casing 501, the entire device can be used directly, thereby reducing the impact of water immersion on the entire monitoring device.

[0029] As shown in the figure, the bottom of the cannula is open, the probe body 503 is located at the open position of the bottom of the cannula, the bottom of the trachea is closed, and the air hole 13 begins in the middle section of the trachea.

[0030] In the illustrated embodiment, a further optimized setting of the present invention is that the water level sensor 4 is configured as a float sensor, and the water level monitoring lower limit of the water level sensor 4 is lower than that of the gas probe 5 .

[0031] As shown in the figure, the water level information can be obtained before the water level rises to the bottom of the gas probe 5. After the wireless transceiver module transmits the water level information to the monitoring personnel, the monitoring personnel can obtain the water level information in time.

[0032] In the illustrated embodiment, a further optimized configuration of the structure of the present invention is that the monitoring device further includes a displacement sensor 7 , and the displacement sensor 7 is connected to the circuit board 1 via a wire.

[0033] As shown in the figure, during installation, the displacement sensor 7 can be installed at the manhole cover position of the valve well to monitor whether the manhole cover is closed. When the manhole cover is lost, the circuit board 1 can obtain the signal changes of the displacement sensor 7, and the monitoring personnel can obtain the changes in whether the manhole cover has moved in time through the wireless transceiver module.

[0034] In the present invention, the displacement sensor 7 and the circuit board 1 are connected by a wire, thereby making it easy to adjust the arrangement position of the displacement sensor 7 .

[0035] In the illustrated embodiment, for the structure of the present invention, to be more specific, the waterproof shell 2 includes a metal base plate 201 and an outer cover 202 that is buckled onto the metal base plate 201 , and the circuit board 1 is mounted on the metal base plate 201 .

[0036] By using the metal base plate 201 and fixing the circuit board 1 on the metal base plate 201 , the metal base plate 201 can be used to dissipate heat outward, thereby further improving the stability of the circuit board 1 during use.

[0037] As for the structure of the waterproof shell 2, those skilled in the art can flexibly select existing waterproof shell 2 technologies when implementing it. For example, a waterproof sealing ring can be used between the metal base plate 201 and the outer cover 202 to seal the fitting gap. The line connection positions with the outside world provided on the outer cover 202 are all connected by resin sealing, and the transparent window 8 and the outer cover 202 are sealed by a sealing ring.

[0038] Alternatively, in an optional embodiment, the entire interior of the waterproof housing 2 may be sealed with resin to achieve waterproofing.

[0039] In the illustrated embodiment, a further optimized configuration of the present invention is that the outer cover 202 is provided with a transparent window 8. This allows for easy observation of the interior of the waterproof housing 2 through the transparent window to check whether water has entered the waterproof housing 2.

[0040] In the illustrated embodiment, a further optimized configuration of the present invention is that the circuit board 1 is provided with a display screen 9 at a position corresponding to the transparent window 8. In this way, the gas concentration can be displayed on the display screen 9, making it convenient to obtain information on site.

[0041] The display screen 9 is at least partially located outside the transparent window 8 , so that the transparent window 8 has space for people to observe the interior.

[0042] In the illustrated embodiment, a further optimized configuration of the present invention is that the floating portion 6 includes a hollow airbag arranged at the bottom of the air tube 502 .

[0043] In the illustrated embodiment, for the structure of the present invention, to be more specific, the sleeve 501 is a metal sleeve 501, the sleeve 501 is bent at the position of the sealing ring 10 to form a mounting groove 11, the sealing ring 10 is sleeved on the mounting groove 11, the air pipe 502 is a metal air pipe 502, and the upper end of the air pipe 502 is provided with a limiting boss 12, the limiting boss 12 can abut against the outer surface of the sleeve 501, and when the air pipe 502 moves to the ventilation position, it can limit and abut against the bending part of the sleeve 501.

[0044] In the illustrated embodiment, specifically regarding the structure of the present invention, as shown, the hollow airbag is threadedly connected to the air pipe 502. This facilitates assembly of the gas probe 5. As shown, the floating portion is configured as a hollow airbag, the lower section of which serves as the airbag body, and the upper section of which serves as a connecting section that can threadably engage the air pipe.

[0045] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0046] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A valve well gas monitoring device, characterized in that: It includes a waterproof shell, a circuit board arranged in the waterproof shell, a wireless transceiver connected to the circuit board, a water level sensor and a gas probe; The gas probe includes a sleeve, an air pipe slidably arranged in the sleeve, and a probe body arranged in the sleeve. The air pipe is provided with an air hole and a floating portion. The air pipe can move up and down between a venting position and a closed position. The floating portion can move up to the closed position when subjected to buoyancy so that the air pipe blocks the sleeve from communicating with the outside world. When the air pipe is in the venting position, the air hole communicates with the inside and outside of the sleeve. A sealing ring is provided between the trachea and the sleeve; The sleeve is a metal sleeve, and the sleeve is bent at the position of the sealing ring to form a mounting groove. The sealing ring is sleeved on the mounting groove. The air pipe is a metal air pipe, and a limiting boss is provided on the upper end of the air pipe. The limiting boss can abut against the outer surface of the sleeve, and when the air pipe moves to the ventilation position, it can abut against the bending part of the sleeve. The floating portion includes a hollow airbag arranged at the bottom of the trachea, and the hollow airbag is screwed and connected to the trachea.

2. The valve well gas monitoring device according to claim 1, characterized in that: The water level sensor is configured as a float sensor, and the water level monitoring lower limit of the water level sensor is lower than that of the gas probe.

3. The valve well gas monitoring device according to claim 1, characterized in that: The monitoring device further includes a displacement sensor, which is connected to the circuit board via a wire.

4. The valve well gas monitoring device according to claim 1, characterized in that: The waterproof housing comprises a metal bottom plate and an outer cover buckled on the metal bottom plate, and the circuit board is mounted on the metal bottom plate.

5. The valve well gas monitoring device according to claim 4, characterized in that: The outer cover is provided with a transparent window.

6. The valve well gas monitoring device according to claim 5, characterized in that: The circuit board is provided with a display screen at a position corresponding to the transparent window.

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