Determination device for peat underground methane

Abstract

The utility model discloses a peat underground methane measuring device which comprises a shell, and a methane sensor and a control panel are arranged in the shell; the lower end of the shell is provided with an air inlet pipe, the lower end of the air inlet pipe is connected with a telescopic pipe, the upper end of the air inlet pipe is connected with a micro air pump arranged in the shell, the air outlet end of the micro air pump is connected with a first pipeline, and the other end of the first pipeline is connected with a detection cavity; the methane sensor is arranged in the detection cavity; a plurality of female notches are formed in the outer end of the air inlet pipe, and moving grooves are formed in the side portions of the female notches. The outer end of the air inlet pipe is rotationally connected with a rotating ring, and a first protruding ring is arranged on the inner side of the rotating ring and located below the female notch. A plurality of sub-notches are formed in the first convex ring and correspond to the main notches; a clamping block is arranged at the connecting end of the telescopic pipe. The device can be used for measuring the concentration of methane under the peat ground, has the advantage of more accurate detection result, and is small in size and convenient to carry.

Description

Technical Field

[0001] The utility model relates to a device for measuring methane in a peatland, belonging to the technical field of greenhouse gas detection. Background Art

[0002] Detecting the methane concentration in peatlands can be used for a variety of purposes, including: helping to monitor the release of underground methane, helping to assess the pollution of groundwater and soil, and possible environmental risks; the methane concentration in peatlands can also be used as one of the indicators for natural gas resource exploration. Areas with high methane concentrations may have natural gas reserves, which have potential value for energy development. Among the existing detection methods, the detection of methane concentration in peatlands is generally done by pre-drilling multiple holes of varying depths in the peatland, then waiting for a period of time or using an air pump to extract methane so that methane overflows from the peatland, and then using a detection instrument to detect the methane content in the air. However, the above detection method takes a long time to detect, and the results of methane detection have large errors, and cannot accurately reflect the concentration of methane in peatlands. Utility Model Content

[0003] The purpose of the utility model is to provide a device for measuring methane in a peatland. The utility model can measure the methane concentration in a peatland, has the advantages of relatively accurate detection results, and is small in size and easy to carry.

[0004] The technical solution of the utility model is as follows: a device for measuring methane in a peatland, comprising a shell, wherein a methane sensor and a control panel are arranged in the shell; an air inlet pipe is arranged at the lower end of the shell, the lower end of the air inlet pipe is connected to a telescopic tube, the upper end of the air inlet pipe is connected to a micro air pump arranged in the shell, the air outlet end of the micro air pump is connected to a first pipe, and the other end of the first pipe is connected to a detection chamber; the methane sensor is arranged in the detection chamber; a plurality of female notches are arranged at the outer end of the air inlet pipe, and a movable groove is arranged at the side of the female notch; a rotating ring is rotatably connected to the outer end of the air inlet pipe, and a first convex ring is provided on the inner side of the rotating ring, and the first convex ring is located below the female notch; a plurality of sub-notches are arranged on the first convex ring, and the sub-notches correspond to the female notches; a clamping block is provided at the connecting end of the telescopic tube, and the clamping block cooperates with the female notch and the movable groove.

[0005] In the above-mentioned device for measuring methane in peatland, the upper end of the detection chamber is connected to a second pipe, the other end of the second pipe is connected to a processing chamber, the upper end of the processing chamber is connected to an air outlet pipe, and the air outlet pipe is communicated with the outside of the shell.

[0006] The aforementioned device for measuring methane in peat soil has hand-held handles on both sides of the shell, and a hand-releasing groove is provided between the hand-held handles and the shell.

[0007] The aforementioned device for measuring methane in peat ground has a fixing seat at the lower end of the shell, and a plurality of storage batteries are arranged in the fixing seat.

[0008] In the aforementioned device for measuring methane in peatlands, sound holes are respectively arranged on both sides of the upper end of the shell, and buzzers are arranged inside the sound holes.

[0009] In the aforementioned device for measuring methane in peatlands, the telescopic tube is provided with a second convex ring located on the side of the block.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The utility model firstly makes a hole in the ground to be detected, then selects a telescopic tube of suitable specifications, aligns the sub-notch on the first convex ring with the main notch on the air inlet pipe, inserts the card block into the main notch through the sub-notch, and then rotates the telescopic tube to make the card block move into the movable groove, and then rotates the rotating ring to stagger the sub-notch and the main notch. The card block cannot be moved out due to the blocking of the first convex ring, and the connection between the telescopic tube and the shell is completed. Then the telescopic tube is extended into the hole drilled on the ground, and the micro air pump sucks the gas underground through the telescopic tube, and then sends it to the detection chamber through the first pipeline, and the methane sensor in the detection chamber detects the gas. Therefore, the suction end of the utility model can be extended into the peat ground, and the gas underground in the peat ground can be accurately pumped to prevent interference from external air, and the methane sensor can perform accurate detection, so that the detection result is more accurate and the detection process is faster.

[0012] 2. The second convex ring of the utility model is used for sealing after the telescopic tube is connected to the air inlet pipe, so as to prevent gas from leaking from the gap of the connection and improve the accuracy of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 Schematic diagram of the internal structure of the telescopic tube of the shell;

[0015] Figure 3 It is a schematic diagram of the connection structure between the intake pipe and the telescopic pipe.

[0016] The marks in the accompanying drawings are: 1-housing, 2-methane sensor, 3-control board, 4-inlet pipe, 5-micro air pump, 6-first pipeline, 7-detection chamber, 8-female notch, 9-moving groove, 10-rotating ring, 11-first convex ring, 12-telescopic tube, 13-block, 14-second pipeline, 15-processing chamber, 16-outlet pipe, 17-handheld handle, 18-hand release groove, 19-fixed seat, 20-battery, 21-sound hole, 22-buzzer, 23-sub-notch, 24-second convex ring. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0018] Embodiment: A device for measuring methane in peat soil, such as Figure 1-Figure 3 As shown, it includes a shell 1, in which a methane sensor 2 and a control board 3 are arranged. The control board 3 is a PCBA board, on which a processor and electronic devices such as capacitors and resistors are integrated. The processor can adopt a processor of model MCU. Since the control board 3 is a conventional component in this field and can be obtained commercially, the specific structure and circuit connection of the control board 3 are not repeated here. The lower end of the shell 1 is provided with an air inlet pipe 4, the lower end of the air inlet pipe 4 is connected to a telescopic tube 12, and the upper end of the air inlet pipe 4 is connected to a micro air pump 5 arranged in the shell 1, the micro air pump 5 is used to suck external gas into the detection chamber 7, and the micro air pump 5 adopts an air pump of model ZR370-01 produced by Zhirong Huaguan Company; the air outlet end of the micro air pump 5 is connected to a first pipeline 6, the other end of the first pipeline 6 is connected to the detection chamber 7, and the methane sensor 2 is arranged in the detection chamber 7; the outer end of the air inlet pipe 4 has four female notches 8, and the side of the female notch 8 is provided with a movable groove 9; the outer end of the air inlet pipe 4 is rotatably connected to a rotating ring 10, and the inner side of the rotating ring 10 is provided with a first convex ring 11, and the first convex ring 11 is located below the female notch 8; the first convex ring 11 is provided with four sub-notches 23, and the sub-notches 23 correspond to the female notch 8; the connecting end of the telescopic tube 12 has a block 13, and the block 13 cooperates with the female notch 8 and the movable groove 9. The upper end of the detection chamber 7 is connected to a second pipe 14, and the other end of the second pipe 14 is connected to a processing chamber 15. The upper end of the processing chamber 15 is connected to an air outlet pipe 16, and the air outlet pipe 16 is communicated with the outside of the shell 1. In this embodiment, activated carbon is placed in the processing chamber 15, and the methane in the gas after detection is adsorbed on the activated carbon to reduce the emission of methane to the air. Hand grips 17 are provided on both sides of the shell 1, and a hand-releasing groove 18 is provided between the hand grip 17 and the shell 1. A fixing seat 19 is provided at the lower end of the interior of the shell 1, and two batteries 20 are provided in the fixing seat 19. The batteries 20 increase the power for the operation of the utility model. Sound holes 21 are provided on both sides of the upper end of the shell 1, and a buzzer 22 is provided inside the sound hole 21. When a high methane content in the gas is detected, the buzzer 22 sounds an alarm to remind the detection personnel to pay attention to safety. The telescopic tube 12 is provided with a second convex ring 24 located on the side of the block 13. The second convex ring 24 is used to seal the telescopic tube 12 and the air inlet pipe 4 after they are connected to prevent gas from leaking from the connection gap, thereby improving the accuracy of the detection result.

[0019] How it works

[0020] Drill a hole in the ground that needs to be detected, then select a telescopic tube 12 of appropriate specifications, align the sub-slot 23 on the first convex ring 11 with the female slot 8 on the air inlet pipe 4, insert the block 13 into the female slot 8 through the sub-slot 23, and then rotate the telescopic tube 12 to make the block 13 move into the movable groove 9, then rotate the rotating ring 10 to stagger the sub-slot 23 and the female slot 8. Since the blocking block 13 of the first convex ring 11 cannot be moved out, the connection between the telescopic tube 12 and the shell 1 is completed, and then the telescopic tube 12 is extended into the hole drilled on the ground, and the micro air pump 5 sucks the underground gas through the telescopic tube 12, and then sends it to the detection chamber 7 through the first pipeline 6. The methane sensor 2 in the detection chamber 7 detects the gas, and the detected gas enters the processing chamber 15 for treatment through the second pipeline 14, and is discharged outward through the outlet pipe 16 after the treatment.

Claims

1. A device for measuring methane in peat soil, comprising a housing (1), wherein a methane sensor (2) and a control panel (3) are arranged in the housing (1); the device is characterized in that: The lower end of the housing (1) is provided with an air inlet pipe (4), the lower end of the air inlet pipe (4) is connected to a telescopic pipe (12), the upper end of the air inlet pipe (4) is connected to a micro air pump (5) arranged in the housing (1), the air outlet end of the micro air pump (5) is connected to a first pipe (6), and the other end of the first pipe (6) is connected to a detection chamber (7); the methane sensor (2) is arranged in the detection chamber (7); the outer end of the air inlet pipe (4) is provided with a plurality of female notches (8), and the female notches (8) are provided on the side The outer end of the air inlet pipe (4) is rotatably connected to a rotating ring (10), the inner side of the rotating ring (10) is provided with a first convex ring (11), and the first convex ring (11) is located below the female notch (8); the first convex ring (11) is provided with a plurality of sub-notches (23), and the sub-notches (23) correspond to the female notch (8); the connecting end of the telescopic tube (12) is provided with a clamping block (13), and the clamping block (13) cooperates with the female notch (8) and the movable groove (9).

2. The device for measuring methane in peatlands according to claim 1, characterized in that: The upper end of the detection chamber (7) is connected to a second pipe (14), the other end of the second pipe (14) is connected to a processing chamber (15), the upper end of the processing chamber (15) is connected to an air outlet pipe (16), and the air outlet pipe (16) is in communication with the outside of the housing (1).

3. The device for measuring methane in peatlands according to claim 1, characterized in that: Hand grips (17) are respectively provided on both sides of the housing (1), and a hand placement groove (18) is provided between the hand grips (17) and the housing (1).

4. The device for measuring methane in peatlands according to claim 1, characterized in that: A fixing seat (19) is provided at the lower end of the interior of the housing (1), and a plurality of storage batteries (20) are provided in the fixing seat (19).

5. The device for measuring methane in peatlands according to claim 1, characterized in that: Both sides of the upper end of the housing (1) are respectively provided with sound outlet holes (21), and a buzzer (22) is provided inside the sound outlet holes (21).

6. The device for measuring methane in peatlands according to claim 1, characterized in that: The telescopic tube (12) is provided with a second convex ring (24) located on the side of the clamping block (13).

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