Underground assembly type gas content measuring device

Abstract

The utility model discloses an underground assembled gas content measuring device. The underground assembled gas content measuring device comprises a measuring mechanism and a supporting mechanism, the measuring mechanism comprises a measuring cylinder and a coal sample tank, and the coal sample tank is connected with the measuring cylinder; the supporting mechanism comprises a first supporting assembly and a second supporting assembly, and the second supporting assembly is installed on one side of the first supporting assembly. According to the underground assembled gas content measuring device, the measuring mechanism and the supporting mechanism are arranged, so that the underground assembled gas content measuring device can be conveniently assembled and used for measuring the gas content of a coal sample, the measuring cylinder can be conveniently hung by using the first supporting assembly comprising the supporting seat, the threaded rod, the top plate and the hook, and the measuring cylinder can be kept vertical when being used underground, so that the measuring cylinder is convenient to use. The reading error of the measuring cylinder is reduced, so that the accuracy of gas content measurement is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas content determination technology, and in particular to an underground assembled gas content determination device. Background Technology

[0002] Coal seam gas is one of the major safety hazards in coal mines. It not only causes numerous mine accidents, resulting in casualties and equipment damage, but also leads to production interruptions, affecting the normal operation and economic benefits of enterprises. Furthermore, gas leaks produce large amounts of harmful gases, polluting the surrounding environment. Therefore, it is necessary to measure the coal seam gas content during coal mining to accurately predict gas outbursts and effectively prevent gas explosions. A gas content analyzer is used to detect the coal seam gas content. This analyzer uses the water displacement gas collection method to determine the gas content of coal samples. A simple gas content analyzer includes a measuring cylinder, a coal sample container connected to the measuring cylinder, and a fixed support. During measurement, a certain amount of water is first placed in the measuring cylinder, and then the coal sample is placed into the coal sample container. Gas from the coal sample container enters the measuring cylinder, displacing excess water. By reading the volume of water displaced from the measuring cylinder, the gas content in the coal sample can be calculated.

[0003] The current simple gas content analyzer is inconvenient to assemble, and the underground environment is harsh, with few places where the gas analyzer can measure stably. The measuring cylinder is prone to tilting, which can cause inaccurate readings and thus affect the accuracy of gas content measurement.

[0004] Therefore, it is necessary to provide an underground assembled gas content measuring device to solve the above-mentioned technical problems. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the existing technology, this utility model provides an underground assembled gas content measuring device that can help reduce the reading error of the measuring cylinder.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An underground assembled gas content measuring device includes: a measuring mechanism and a detachable and assembleable support mechanism; the measuring mechanism includes a measuring cylinder and a coal sample container, which are connected to the measuring cylinder via a pipe, allowing gas from the coal sample in the coal sample container to enter the measuring cylinder through the pipe, while water in the measuring cylinder is discharged, thus enabling the determination of gas content in the coal sample by the water displacement method. The support mechanism includes a first support component and a second support component, with the second support component installed on one side of the first support component. The first and second support components respectively support the measuring cylinder and the coal sample container. Specifically, the first support component includes a support base and a top plate. The support base and the top plate are connected and fixed by two threaded rods, that is, the two ends of the threaded rods are threadedly connected to the support base and the top plate respectively, which facilitates assembly. A hook is installed on the center thread of the top plate. The measuring cylinder is suspended on the hook by a lifting ring installed on the top of the measuring cylinder, which facilitates the suspension and removal of the measuring cylinder. A connecting seat is installed at the bottom of the measuring cylinder. A drain pipe and an air inlet pipe that communicate with the inside of the measuring cylinder are installed on the connecting seat. The air inlet pipe is connected to the coal sample tank to facilitate the discharge of gas into the measuring cylinder. In order to stabilize the center of gravity of the measuring cylinder downward, a counterweight is magnetically installed at the bottom of the connecting seat, which makes the center of gravity of the measuring cylinder more stable downward after suspension. The second support assembly includes an anti-slip rack mounted on a threaded rod. The screw passes through the anti-slip rack, and the anti-slip rack is fixed to the screw by two nuts on the screw. Therefore, the anti-slip rack can be separated from the screw. A connector is installed on one side of the anti-slip rack. The connector can be adjusted up and down and can be disassembled. A support plate and a stabilizing ring are installed on one side of the connector. The stabilizing ring is fitted onto the coal sample container, and the support plate supports the coal sample container.

[0008] Preferably, a damped movable ring that can slide up and down is fitted onto the measuring cylinder, and an indicator strip is horizontally rotatably mounted on the movable ring.

[0009] Preferably, guide grooves are provided on both sides of the anti-slip rack.

[0010] Preferably, the connecting component includes a lifting frame that is slidably connected to the guide groove. A limiting rack is installed on one side of the lifting frame, and the limiting rack meshes with an anti-slip rack. A pull rod is installed on one side of the limiting rack, and the pull rod passes through the lifting frame. Multiple return springs are installed between the lifting frame and the limiting rack. A locking block is installed on one side of the lifting frame, and the locking block is connected to the support plate and the stabilizing ring.

[0011] Preferably, a T-shaped groove is provided on one side of the lifting frame, and a T-shaped block is integrally installed on one side of the locking block. The T-shaped block slides up and down in the T-shaped groove, and an adjusting screw is installed at the bottom of the lifting frame. One end of the adjusting screw extends into the T-shaped groove and contacts or connects with the lifting frame.

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

[0013] (1) By setting up a measuring mechanism and a support mechanism, this utility model can be easily assembled and the gas content of coal samples can be measured. The first support assembly, which includes a support base, a threaded rod, a top plate and a hook, can facilitate the suspension of the measuring cylinder and keep it vertical when used underground, thereby reducing the reading error of the measuring cylinder and improving the accuracy of gas content measurement.

[0014] (2) This utility model can conveniently adjust the height of the coal sample container by installing a movable ring on the measuring cylinder and an indicator strip on the movable ring;

[0015] (3) By setting guide groove, lifting frame, pull rod, limiting rack, return spring and locking block, the height of the tray can be easily adjusted;

[0016] (4) The present invention can finely adjust the height of the pallet by means of T-slot, T-block and adjusting screw, so as to make it easy to accurately adjust the height of the pallet. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of the downhole assembled gas content measuring device provided by this utility model;

[0018] Figure 2 for Figure 1 The diagram shows a front view of the assembled underground gas content measuring device.

[0019] Figure 3 for Figure 1 The diagram shows the structural schematic of the connector in the downhole assembled gas content measuring device.

[0020] Figure 4 for Figure 1 The diagram shows the structure of the locking block in the downhole assembled gas content measuring device.

[0021] The corresponding names of the reference numerals in the attached drawings are as follows: 1-First support assembly, 2-Second support assembly, 3-Measuring cylinder, 4-Coal sample container, 5-Counterweight block, 6-Connecting seat, 7-Support seat, 8-Threaded rod, 9-Top plate, 10-Hook, 11-Anti-slip rack, 12-Connector, 13-Support plate, 14-Stabilizing ring, 15-Indicator bar, 16-Moving ring, 17-Guide groove, 18-Lifting frame, 19-Pull rod, 20-Limiting rack, 21-Reset spring, 22-Clip block, 23-T-slot, 24-T-block, 25-Adjusting screw. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0023] Example 1:

[0024] like Figure 1-4As shown, the underground assembled gas content measuring device provided by this utility model includes: a measuring mechanism and a detachable and assembleable support mechanism; the measuring mechanism includes a measuring cylinder 3 and a coal sample container 4, the coal sample container 4 and the measuring cylinder 3 are connected by a pipe, so that the gas in the coal sample in the coal sample container 4 can enter the measuring cylinder 3 through the pipe, and the water in the measuring cylinder 3 can be discharged, thereby measuring the gas content in the coal sample by the water displacement method. The support mechanism includes a first support component 1 and a second support component 2, the second support component 2 is installed on one side of the first support component 1, and the first support component 1 and the second support component 2 are respectively used to support the measuring cylinder 3 and the coal sample container 4. Specifically, the first support component 1 includes a support base 7 and a top plate 9. The support base 7 and the top plate 9 are connected and fixed by two threaded rods 8, that is, the two ends of the threaded rods 8 are threadedly connected to the support base 7 and the top plate 9 respectively, which facilitates assembly. A hook 10 is installed on the center thread of the top plate 9. The measuring cylinder 3 is suspended on the hook 10 by a lifting ring installed on the top of the measuring cylinder 3, which facilitates the suspension and removal of the measuring cylinder 3. A connecting seat 6 is installed at the bottom of the measuring cylinder 3. A drain pipe and an air inlet pipe that communicate with the inside of the measuring cylinder 3 are installed on the connecting seat 6. The air inlet pipe is connected to the coal sample tank 4, which facilitates the discharge of gas into the measuring cylinder 3. In order to make the center of gravity of the measuring cylinder 3 stable downward, a counterweight 5 is magnetically installed at the bottom of the connecting seat 6, so that the center of gravity of the measuring cylinder 3 can be more stably downward after suspension. The second support assembly 2 includes an anti-slip rack 11 mounted on a threaded rod 8. The threaded rod 8 passes through the anti-slip rack 11, and the anti-slip rack 11 is fixed to the threaded rod 8 by two nuts 26 on the threaded rod 8. Therefore, the anti-slip rack 11 can be separated from the threaded rod 8. A connector 12 is installed on one side of the anti-slip rack 11. The connector 12 can be adjusted up and down and disassembled. A support plate 13 and a stabilizing ring 14 are installed on one side of the connector 12. The stabilizing ring 14 is fitted onto the coal sample container 4, and the support plate 13 supports the bottom of the coal sample container 4. In use, connect the two ends of the screw 8 to the support base 7 and the top plate 9 respectively, then connect the hook 10 to the top plate 9, and suspend the measuring cylinder 3 below the hook 10. Attach the counterweight 5 to the bottom of the connecting base 6 so that the measuring cylinder 3 is naturally vertical under gravity. Therefore, the liquid level in the measuring cylinder 3 is parallel to the scale line, resulting in a smaller reading deviation. Install the connector 12 on any one of the anti-slip racks 11, and place the coal sample container 4 at the center of the support plate 13, so that the stabilizing ring 14 is fitted onto the coal sample container 4. Connect the measuring cylinder 3 to the exhaust port of the coal sample container 4 using a pipe. At this time, inject an appropriate amount of water into the measuring cylinder 3 and record the reading of the measuring cylinder 3. Take a certain amount of coal sample and put it into the coal sample container 4. After standing for a certain period of time, the gas in the coal sample in the coal sample container 4 enters the measuring cylinder 3 through the pipe, discharging some of the water in the measuring cylinder 3. Then, the gas content in the coal sample can be calculated by the water displacement method. It is worth noting that the height of the adjustable connector 12 is designed to make the liquid levels in the coal sample container 4 and the measuring cylinder 3 as consistent as possible, thus reducing measurement errors. After the measurement is completed, the device can be disassembled and stored in the box.

[0025] By setting up a measuring mechanism and a support mechanism, it is easy to assemble and measure the gas content of coal samples. Using the first support assembly 1, which includes a support base 7, a threaded rod 8, a top plate 9, and a hook 10, it is easy to suspend the measuring cylinder 3 and keep it vertical when used underground, thereby reducing the reading error of the measuring cylinder 3 and improving the accuracy of gas content measurement.

[0026] Example 2:

[0027] like Figure 1-2 As shown, a damped sliding ring 16 is fitted onto the measuring cylinder 3. An indicator strip 15 is horizontally mounted on the sliding ring 16. In use, the sliding ring 16 is pulled up and down to move it to be flush with the liquid level in the measuring cylinder 3. The indicator strip 15 is rotated to bring it closer to the coal sample container 4. Then, the height of the connecting piece 12 is adjusted according to the height of the indicator strip 15 so that the gas pressure in the coal sample container 4 when no coal sample is added can find the balance point with the pressure in the measuring cylinder 3 more quickly. That is, the liquid in the coal sample container 4 and the measuring cylinder 3 are kept horizontal, reducing errors. After adding the coal sample, the gas in the coal sample gradually escapes from the coal sample, increasing the gas pressure in the coal sample container 4. Under the action of pressure, some gas enters the measuring cylinder 3 and the water in the measuring cylinder 3 is discharged. Then, the gas content can be determined by the water displacement method.

[0028] The height of the coal sample container 4 can be easily adjusted by installing a movable ring 16 on the measuring cylinder 3 and an indicator strip 15 on the movable ring 16.

[0029] Example 3:

[0030] like Figure 3 As shown, guide grooves 17 are provided on both sides of the anti-slip rack 11. The connecting piece 12 includes a lifting frame 18 that is slidably connected to the guide grooves 17. A limiting rack 20 is installed on one side of the lifting frame 18. The limiting rack 20 meshes with the anti-slip rack 11. A pull rod 19 is installed on one side of the limiting rack 20. The pull rod 19 passes through the lifting frame 18. Multiple return springs 21 are installed between the lifting frame 18 and the limiting rack 20. A locking block 22 is installed on one side of the lifting frame 18. The locking block 22 is connected to the support plate 13 and the stabilizing ring 14. In use, the pull rod 19 is pulled to disengage the limiting rack 20 from the anti-slip rack 11 and compress the return springs 21. At this time, the lifting frame 18 can be pulled up and down to move it up and down along the guide grooves 17, thereby moving the support plate 13 up and down until the coal sample container 4 is raised to a suitable height. At this time, the pull rod 19 is released. Under the action of the return springs 21, the limiting rack 20 is pressed onto the anti-slip rack 11, and the two finally mesh. To disassemble, simply pull the lifting frame 18 upwards to remove it. This facilitates assembly and disassembly.

[0031] By setting guide groove 17, lifting frame 18, pull rod 19, limit rack 20, return spring 21 and locking block 22, the height of the tray 13 can be easily adjusted.

[0032] Example 4:

[0033] like Figure 3-4 As shown, a T-shaped groove 23 is provided on one side of the lifting frame 18, and a T-shaped block 24 is integrally installed on one side of the locking block 22. The T-shaped block 24 slides up and down in the T-shaped groove 23, and an adjusting screw 25 is installed at the bottom of the lifting frame 18. The top of the adjusting screw 25 extends into the T-shaped groove 23 and contacts or connects with the lifting frame 18. In use, because the anti-slip teeth 11 and the limiting rack 20 are meshed, the pallet 13 cannot be adjusted to any height within the stroke range. At this time, the adjusting screw 25 can be rotated to make the locking block 22 move up and down a short distance along the T-shaped groove 23. With the meshing of the teeth, the pallet 13 can be stopped at any height within the stroke range.

[0034] The height of the tray 13 can be finely adjusted by using the T-slot 23, the T-block 24 and the adjusting screw 25, making it easy to precisely adjust the height of the tray 13.

[0035] Working principle: In use, connect the two ends of the screw 8 to the support base 7 and the top plate 9 respectively by thread, then connect the hook 10 to the top plate 9 by thread, and then suspend the measuring cylinder 3 below the hook 10. Attach the counterweight 5 to the bottom of the connecting base 6 so that the measuring cylinder 3 is naturally vertical under the action of gravity. Therefore, the liquid level in the measuring cylinder 3 is parallel to the scale line, resulting in a smaller reading deviation. Install the connecting piece 12 on any one of the anti-slip racks 11, and then place the coal sample container 4 at the center of the support plate 13, so that the stabilizing ring 14 is fitted onto the coal sample container 4. Connect the measuring cylinder 3 to the exhaust port of the coal sample container 4 using a pipe. At this time, inject an appropriate amount of water into the measuring cylinder 3 and record the reading of the measuring cylinder 3. Take a certain amount of coal sample and put it into the coal sample container 4. After standing for a certain period of time, the gas in the coal sample in the coal sample container 4 enters the measuring cylinder 3 through the pipe, discharging some of the water in the measuring cylinder 3. Then, the gas content in the coal sample can be calculated by the water displacement method. It is worth noting that the height of the adjustable connector 12 is designed to make the liquid levels in the coal sample container 4 and the measuring cylinder 3 as consistent as possible, thus reducing measurement errors. After the measurement is completed, the device can be disassembled and stored in the box.

Claims

1. A downhole assembled gas content measurement device, characterized in that, The utility model relates to a coal sample measuring and supporting device, which comprises a measuring mechanism and a supporting mechanism. The measuring mechanism comprises a measuring cylinder (3) and a coal sample jar (4) connected with the measuring cylinder (3). The supporting mechanism comprises a first supporting assembly (1) and a second supporting assembly (2) installed on one side of the first supporting assembly (1), and the first supporting assembly (1) and the second supporting assembly (2) are used for supporting the measuring cylinder (3) and the coal sample jar (4) respectively. A counterweight (5) is magnetically installed at the bottom of the measuring cylinder (3). The first supporting assembly (1) comprises a supporting seat (7) and a top plate (9), two threaded rods (8) are installed between the supporting seat (7) and the top plate (9), a hook (10) is installed at the center of the top plate (9), and the measuring cylinder (3) is hung on the hook (10).

2. A downhole assembled gas content measurement device according to claim 1, characterized in that The second supporting assembly (2) comprises an anti-skid rack (11) installed on the threaded rod (8), a height-adjustable connecting piece (12) is installed on one side of the anti-skid rack (11), and a supporting plate (13) and a stabilizing ring (14) are installed on one side of the connecting piece (12).

3. A downhole assembled gas content measurement device according to claim 2, characterised in that, A moving ring (16) is installed on the measuring cylinder (3), and an indicating strip (15) is rotatably installed on the moving ring (16).

4. A downhole assembled gas content measuring device according to claim 1, characterized in that Both sides of the anti-skid rack (11) are provided with guide grooves (17), the connecting piece (12) comprises a lifting frame (18) connected with the guide grooves (17), a limiting rack (20) is installed on one side of the lifting frame (18), the limiting rack (20) is engaged with the anti-skid rack (11), a pull rod (19) is installed on one side of the limiting rack (20), the pull rod (19) penetrates through the lifting frame (18), a plurality of return springs (21) are installed between the lifting frame (18) and the limiting rack (20), a clamping block (22) is installed on one side of the lifting frame (18), and the clamping block (22) is connected with the supporting plate (13) and the stabilizing ring (14).

5. A downhole assembled gas content measuring device according to claim 3, characterized in that One side of the lifting frame (18) is provided with a T-shaped groove (23), a T-shaped block (24) is integrally installed on one side of the clamping block (22), an adjusting screw (25) is installed at the bottom of the lifting frame (18), one end of the adjusting screw (25) extends into the T-shaped groove (23) and is connected with the lifting frame (18).

6. A downhole assembled gas content measuring device according to claim 5, characterized in that ​

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