Coal bed gas reservoir pulverized coal monitoring device

Abstract

The utility model relates to the technical field of coal, in particular to a coal bed gas reservoir pulverized coal monitoring device which comprises a square cylinder, the square cylinder is communicated and fixed to a water inlet pipe of a pump, a first cylinder is communicated and fixed to the square cylinder, a first sealing plate is inserted into the first cylinder, and a guide pipe is arranged on the first sealing plate in a penetrating and sliding mode. A circular ring is fixed to the guide pipe in a penetrating mode, the circular ring makes contact with the first sealing plate, a monitoring probe and a controller are fixed to the two ends of the guide pipe respectively, a wire is fixed between the controller and the monitoring probe, the wire penetrates through the guide pipe, and the monitoring probe is inserted into the square barrel. When the device is used, the monitoring probe is used for monitoring the content of pulverized coal at the gas production port of the gas storage layer, so that a worker can timely find the situation that the content of the pulverized coal at the gas production port of the gas storage layer is increased suddenly and can timely process the situation, and the phenomenon that a gas production channel is disturbed and blocked can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of coal technology, and in particular to a coalbed methane reservoir coal powder monitoring device. Background Technology

[0002] Coalbed methane (CBM) refers to hydrocarbon gases stored in coal seams, primarily composed of methane. These gases are mainly adsorbed onto the surface of coal matrix particles, with some remaining free in coal pores or dissolved in coal seam water. It is a associated mineral resource of coal, belonging to unconventional natural gas, and has emerged as a clean and high-quality energy source and chemical feedstock in the last one or two decades internationally. Sometimes, a surge in coal dust content occurs at the CBM gas production inlet, causing disturbances and blockages in the production channel. Currently, it is impossible to monitor the coal dust content at the CBM production inlet, preventing workers from promptly detecting blockages in the production channel. Therefore, a coalbed methane reservoir coal dust monitoring device is needed to meet this requirement. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies where coal dust in coalbed methane reservoirs is not monitored, and to propose a coal dust monitoring device for coalbed methane reservoirs.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A coalbed methane reservoir pulverized coal monitoring device is designed, comprising a square cylinder connected and fixed to the inlet pipe of a pump. A first cylindrical cylinder is connected and fixed to the square cylinder, and a first sealing plate is inserted into the first cylindrical cylinder. A guide tube is slidably disposed through the first sealing plate, and a circular ring is fixed through the guide tube, which is in contact with the first sealing plate. A monitoring probe and a controller are respectively fixed at both ends of the guide tube. A wire is fixed between the controller and the monitoring probe, and the wire passes through the guide tube. The monitoring probe is inserted into the square cylinder, and the controller is located outside the first cylindrical cylinder. A fixing mechanism is fixed to both the controller and the inlet pipe of the pump.

[0006] Preferably, the fixing mechanism includes an insert rod, which is fixed to the controller. A second cylinder is fitted onto the insert rod, and the second cylinder is fixed to the water inlet pipe of the pump. The insert rod and the second cylinder are both provided with a locking component.

[0007] Preferably, the locking assembly includes a first bolt, which is threaded onto the second cylinder and the insert rod.

[0008] Preferably, a connecting rope is fixed to the first bolt, and the connecting rope is fixed to the second cylinder.

[0009] Preferably, a second connecting rod is fixed on the first sealing plate, and a leak-proof mechanism is provided on the first sealing plate between the second connecting rod and the conduit.

[0010] Preferably, the leak-proof mechanism includes a first connecting rod that slides through the first sealing plate, a second sealing plate is fixed to one end of the first connecting rod, the second sealing plate is disposed in the square tube, and a limiting component is provided on the other end of the first connecting rod.

[0011] Preferably, the limiting component includes a fixing plate, which is fixed to the first cylinder, and the fixing plate and the first connecting rod are threaded with a second bolt.

[0012] The coalbed methane reservoir coal dust monitoring device proposed in this utility model has the following advantages: When in use, the coalbed methane reservoir coal dust monitoring device uses a monitoring probe to monitor the coal dust content at the gas production port of the gas reservoir, allowing workers to promptly detect a surge in coal dust content at the gas production port and take timely action to avoid disturbances and blockages in the gas production channel. Attached Figure Description

[0013] Figure 1 This is a front view of a coalbed methane reservoir coal powder monitoring device proposed in this utility model;

[0014] Figure 2 This is a left view of a coalbed methane reservoir coal powder monitoring device proposed in this utility model;

[0015] Figure 3 This is a top view of a coalbed methane reservoir coal powder monitoring device proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the second sealing plate blocking the first cylinder in a coalbed methane reservoir coal powder monitoring device proposed in this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the first cylinder for extracting the monitoring probe of a coal powder monitoring device for coalbed methane reservoirs proposed in this utility model.

[0018] In the diagram: 1. Square tube; 2. First cylinder; 3. First sealing plate; 4. Monitoring probe; 5. Conduit; 6. Controller; 7. Ring; 8. Second cylinder; 9. Insert rod; 10. First bolt; 11. Connecting rope; 12. Second sealing plate; 13. First connecting rod; 14. Second connecting rod; 15. Fixing plate; 16. Second bolt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1: Refer to Figure 1-3 A coalbed methane reservoir pulverized coal monitoring device includes a square cylinder 1, which is connected and fixed to the water inlet pipe of a pump. A first cylindrical cylinder 2 is connected and fixed to the square cylinder 1. A first sealing plate 3 is inserted into the first cylindrical cylinder 2. With the assistance of the first sealing plate 3, leakage is prevented from occurring in the first cylindrical cylinder 2. A guide tube 5 is slidably provided through the first sealing plate 3. A ring 7 is fixed through the guide tube 5 and contacts the first sealing plate 3. When the position of the guide tube 5 is fixed, the ring 7 is used to limit the first sealing plate 3, preventing the first sealing plate 3 from sliding in the first cylindrical cylinder 2 and ensuring the fixed position of the first sealing plate 3 in the first cylindrical cylinder 2.

[0021] Monitoring probe 4 and controller 6 are fixed at both ends of the conduit 5, respectively. A wire is fixed between the controller 6 and the monitoring probe 4. The wire passes through the conduit 5. The monitoring probe 4 is inserted into the square tube 1. The monitoring probe 4 is used to monitor the coal powder content passing through the square tube 1. The controller 6 is located outside the first cylinder 2. The controller 6 and the pump inlet pipe are fixed together by a fixing mechanism. The fixing mechanism is used to fix the position of the monitoring probe 4 in the square tube 1.

[0022] The fixing mechanism includes a insert rod 9, which is fixed on the controller 6. A second cylinder 8 is fitted on the insert rod 9 and fixed on the pump's inlet pipe. The insert rod 9 and the second cylinder 8 are both provided with a locking component. With the assistance of the locking component, the insert rod 9 is limited on the second cylinder 8, thereby fixing the position of the conduit 5.

[0023] The locking assembly includes a first bolt 10, which is threaded onto the second cylinder 8 and the insert rod 9. A connecting rope 11 is fixed to the first bolt 10 and fixed to the second cylinder 8. The connecting rope 11 is provided to prevent the first bolt 10 from being lost when it is not in use.

[0024] In use, with the assistance of the first bolt 10, the insertion rod 9 is positioned on the second cylinder 8, thereby fixing the position of the conduit 5 in the first cylinder 2. At the same time, the position of the monitoring probe 4 in the square cylinder 1 is also fixed. The ring 7 is then fixed along with the conduit 5, using the ring 7 to hold the first sealing plate 3 in place, preventing it from sliding within the first cylinder 2 and avoiding leakage. The monitoring probe 4 is used to monitor the coal dust content at the gas production port of the gas storage layer, allowing workers to promptly detect any sudden increases in coal dust content at the gas production port and take timely action, preventing disturbances and blockages in the gas production channel.

[0025] Example 2: In Example 1, although the monitoring probe 4 can be pulled out of the first cylinder 2 for maintenance, leakage will occur in the first cylinder 2 at this time, and the pump must be stopped, which will affect the pump's efficiency. (Refer to...) Figure 1-5 As another preferred embodiment of this utility model, the difference from embodiment 1 is that a second connecting rod 14 is fixed on the first sealing plate 3. The second connecting rod 14 is used to facilitate pulling the first sealing plate 3 so that the first sealing plate 3 can be pulled out of the first cylinder 2.

[0026] A leak-proof mechanism is provided on the first sealing plate 3 between the second connecting rod 14 and the conduit 5. The leak-proof mechanism includes a first connecting rod 13, which slides through the first sealing plate 3. A second sealing plate 12 is fixed to one end of the first connecting rod 13 and is located in the square tube 1. A limiting component is provided on the other end of the first connecting rod 13. The limiting component includes a fixing plate 15, which is fixed to the first cylinder 2. A second bolt 16 is threaded on both the fixing plate 15 and the first connecting rod 13. By using the cooperation of the second bolt 16 with the fixing plate 15 and the first connecting rod 13, the second sealing plate 12 can be tightly attached to the inner wall of the square tube 1, so that the setting of the second sealing plate 12 will not affect the passage of the material in the square tube 1.

[0027] In use, unscrew the first bolt 10, pull the guide tube 5, and the ring 7 moves away from the first sealing plate 3. At this time, due to the assistance of the limiting component, the first sealing plate 3 will not move in the first cylinder 2 until the monitoring probe 4 is pulled into the first cylinder 2. Then, unscrew the second bolt 16, pull the first connecting rod 13, and at the same time, press against the second connecting rod 14 to keep the first sealing plate 3 from moving in the first cylinder 2 until the second sealing plate 12 blocks the first cylinder 2. Then, under the pressure difference between the inside and outside of the square cylinder 1, the positions of the first connecting rod 13 and the second sealing plate 12 will not move. Pull the second connecting rod 14 to pull the first sealing plate 3 out of the first cylinder 2. At this time, the first sealing plate 3, along with the monitoring probe 4, is pulled out of the first cylinder 2. The pump will not stop working when the worker is inspecting the monitoring probe 4.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A coalbed methane reservoir pulverized coal monitoring device, comprising a square cylinder (1), the square cylinder (1) being connected and fixed to the water inlet pipe of a pump, characterized in that, A first cylinder (2) is fixedly connected to the square tube (1). A first sealing plate (3) is inserted into the first cylinder (2). A conduit (5) is slidably provided through the first sealing plate (3). A ring (7) is fixedly provided through the conduit (5). The ring (7) is in contact with the first sealing plate (3). A monitoring probe (4) and a controller (6) are fixed at both ends of the conduit (5). A wire is fixed between the controller (6) and the monitoring probe (4). The wire passes through the conduit (5). The monitoring probe (4) is inserted into the square tube (1). The controller (6) is located outside the first cylinder (2). A fixing mechanism is fixed together with the controller (6) and the water inlet pipe of the pump.

2. The coalbed methane reservoir pulverized coal monitoring device according to claim 1, characterized in that, The fixing mechanism includes a plug rod (9), which is fixed on the controller (6). A second cylinder (8) is fitted on the plug rod (9), and the second cylinder (8) is fixed on the water inlet pipe of the pump. The plug rod (9) and the second cylinder (8) are both provided with a locking component.

3. The coalbed methane reservoir pulverized coal monitoring device according to claim 2, characterized in that, The locking assembly includes a first bolt (10) which is threaded onto the second cylinder (8) and the insert rod (9).

4. The coalbed methane reservoir pulverized coal monitoring device according to claim 3, characterized in that, A connecting rope (11) is fixed on the first bolt (10), and the connecting rope (11) is fixed on the second cylinder (8).

5. The coalbed methane reservoir pulverized coal monitoring device according to claim 1, characterized in that, A second connecting rod (14) is fixed on the first sealing plate (3), and a leak-proof mechanism is provided on the first sealing plate (3) between the second connecting rod (14) and the conduit (5).

6. The coalbed methane reservoir pulverized coal monitoring device according to claim 5, characterized in that, The leak-proof mechanism includes a first connecting rod (13), which slides through the first sealing plate (3). A second sealing plate (12) is fixed on one end of the first connecting rod (13), which is located in the square tube (1). A limiting component is provided on the other end of the first connecting rod (13).

7. The coalbed methane reservoir pulverized coal monitoring device according to claim 6, characterized in that, The limiting component includes a fixing plate (15), which is fixed on the first cylinder (2). The fixing plate (15) and the first connecting rod (13) are threaded with a second bolt (16).

Images