Drainage device for coal bed gas exploration and development

Abstract

The utility model discloses a drainage device for coal bed gas exploration and development, which relates to the technical field of geological exploration drainage, and comprises a collecting component, the collecting component is inserted on a drainage port, and after water enters the collecting component, the collecting component stirs the water to avoid the problem that solids in the water are deposited and difficult to clean. The collecting assembly is arranged in the water tank, large solids in water are crushed by the collecting assembly, blockage of drainage is avoided, two groups of blocking assemblies are arranged on the collecting assembly, water outlets in the collecting assembly are blocked by the blocking assemblies, and when emergency situations such as pipeline leakage occur, the blocking assemblies are driven to block the water outlets relative to the corresponding water outlets. The safety during drainage is improved, meanwhile, blockage is avoided, and the drainage efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration drainage, and particularly relates to a drainage device for coalbed methane exploration and development. Background Technique

[0002] Before coalbed methane drilling or exploitation, it is necessary to lower the groundwater level to a safe range to ensure that the coalbed methane exploitation process is not interfered by groundwater. The reduction of the groundwater level can reduce the water pressure problems encountered in the drilling and exploitation processes and reduce the risks such as wellbore collapse and instability of drilling mud. Groundwater may rush into the borehole, increasing the difficulty of drilling, especially in the case of high groundwater levels. By draining water to reduce the wellbore water pressure, it helps to relieve the pressure during the drilling process and ensure the smooth progress of the drilling work.

[0003] The Chinese utility model patent with the publication number of CN211987525U discloses a gas-water separation device for coalbed methane wells. This device drains water during coalbed methane exploitation and simultaneously sets multiple baffle plates. Through the different positions of the baffle plates, gas-water separation is realized, and coalbed methane is fully recovered. However, this device cannot effectively treat the solids in the water during drainage and cannot ensure that the device will not be blocked. Content of the Utility Model

[0004] In view of the problems existing in the above technology, the utility model proposes a drainage device for coalbed methane exploration and development

[0005] The utility model adopts the following technical solution for the above technical problems: A drainage device for coalbed methane exploration and development includes a collection assembly. The collection assembly includes a collection box. An outlet is arranged at the upper end of the collection box, and a retaining ring is arranged at the lower end of the collection box. The collection box, the retaining ring and the outlet are communicated. A treatment mechanism is arranged inside the collection box. The treatment mechanism includes a crushing head and a stirring head. The stirring head stirs the extracted water to prevent sundries from depositing. The crushing head crushes larger sundries to prevent blockage. A group of blocking components are arranged on the outlet. The blocking components include a mounting frame. A flow-through pipeline is arranged on the mounting frame. The flow-through pipeline is installed on the outlet. A second baffle plate is slidably arranged inside the mounting frame. The second baffle plate blocks the flow-through pipeline.

[0006] Furthermore, a PH detector is arranged on the collection box. The PH detector is inserted into a shunt port. The shunt port is arranged between the collection box and the outlet. The PH detector detects the PH value of the drained water.

[0007] Further, the processing mechanism includes a rotating ring rotatably mounted on the collection box. A plurality of stirring shafts are rotatably arranged on the rotating ring. The stirring heads are slidably mounted on the stirring shafts, and a first spring is arranged between the stirring heads and the stirring shafts.

[0008] Further, an installation rod is arranged at the lower end of the rotating ring. A sliding frame is slidably arranged on the installation rod. The crushing head is rotatably mounted on the sliding frame.

[0009] Further, a diversion plate is arranged on the installation rod, and the lowest end of the diversion plate faces the crushing head.

[0010] Further, sliding columns are arranged on the second grid baffle. A second spring is arranged between the sliding columns and the mounting frame. A connecting plate is arranged on the sliding columns.

[0011] Further, a grid box is arranged on the mounting frame. A first grid baffle is slidably arranged in the grid box, and the first grid baffle blocks the connecting plate.

[0012] The beneficial effects of the present utility model compared with the prior art are as follows: The present utility model processes the solids in the water through the arranged collection component, avoiding the drainage blockage caused by the solids getting stuck in the collection component. At the same time, the collection component efficiently stirs the water, avoiding the deposition of solids in the water in the collection component, increasing the cleaning interval of the collection component. The arranged grid component on the collection component automatically closes the water outlet of the collection component, and can quickly respond when it is necessary to close the water outlet in case of emergencies such as water leakage, reducing the harm caused by leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view of the overall structure of the present utility model.

[0014] Figure 2 is Figure 1 a schematic structural diagram in the A-A direction in

[0015] Figure 3 a schematic structural diagram of the collection component of the present utility model.

[0016] Figure 4 is a partial structural sectional view of the collection component of the present utility model.

[0017] Figure 5 is a schematic partial structural diagram of the grid component of the present utility model.

[0018] Reference numerals: 1 - collection assembly; 2 - baffle assembly; 101 - collection box; 102 - drill pipe; 103 - drill bit; 104 - retaining ring; 105 - water outlet; 106 - diversion port; 107 - pH detector; 108 - rotating ring; 109 - stirring shaft; 110 - stirring head; 111 - first spring; 112 - mounting rod; 113 - diversion plate; 114 - sliding frame; 115 - crushing head; 201 - mounting frame; 202 - baffle box; 203 - first baffle plate; 204 - circulation pipeline; 205 - second baffle plate; 206 - sliding column; 207 - second spring; 208 - connecting plate. Detailed implementation manner

[0019] Refer to Figures 1 to 5 A drainage device for coalbed methane exploration and development as shown, includes a collection assembly 1. The collection assembly 1 is used for pumping water, and the collection assembly 1 stirs the water to prevent the solids in the water from settling, shortening the cleaning interval. At the same time, the collection assembly 1 crushes the solids in the water to prevent the solids from getting stuck in the collection assembly 1 and causing blockage. There are two groups of baffle assemblies 2 arranged on the collection assembly 1. In case of an emergency, the baffle assembly 2 blocks the water outlet 105 to prevent drainage leakage.

[0020] The collection component 1 includes a drill pipe 102. A drill bit 103 is rotatably arranged on the drill pipe 102. The drill bit 103 is used for geological exploration. The collection component 1 further includes a collection box 101. The drill pipe 102 passes through the collection box 101. A retaining ring 104 is arranged at the lower end of the collection box 101. The retaining ring 104 communicates with the collection box 101. Two groups of water outlets 105 are arranged on the collection box 101. The water outlets 105 communicate with the collection box 101. The water outlets 105 are connected to a sedimentation tank through pipes. A diversion port 106 is arranged between the collection box 101 and one of the water outlets 105. A PH detector 107 is arranged on the collection box 101. The PH detector 107 is inserted into the diversion port 106. The PH detector 107 detects the PH value of the liquid passing through the diversion port 106. A rotating ring 108 is rotatably arranged in the collection box 101. Three stirring shafts 109 are rotatably arranged at the lower end of the rotating ring 108. Stirring heads 110 are coaxially arranged on the stirring shafts 109. The stirring heads 110 stir the water in the collection box 101 to prevent solid substances in the water from depositing in the collection box 101. A first spring 111 is arranged between the stirring head 110 and the stirring shaft 109. The first spring 111 drives the stirring head 110 to slide reciprocally on the stirring shaft 109. An installation rod 112 is arranged at the lower end of the rotating ring 108. A diversion plate 113 is arranged on the installation rod 112. The diversion plate 113 is a V-shaped plate, and the lowest end of the diversion plate 113 faces the crushing head 115. The diversion plate 113 diverts the water in the collection box 101 to prevent the internal pressure of the collection box 101 and the retaining ring 104 from being too high. A sliding frame 114 is slidably arranged on the installation rod 112. A crushing head 115 is rotatably arranged on the sliding frame 114. The crushing head 115 crushes larger solid substances in the water to prevent blockage in the collection box 101.

[0021] The blocking component 2 includes a circulation pipe 204 installed on the water outlet 105. An installation frame 201 is arranged on the circulation pipe 204. A second baffle 205 is slidably arranged inside the installation frame 201. The second baffle 205 intermittently blocks the circulation pipe 204, and water cannot pass through the circulation pipe 204. Two sliding columns 206 are arranged at the end of the second baffle 205 away from the circulation pipe 204. The sliding columns 206 are slidably connected to the installation frame 201. A second spring 207 is arranged between the sliding columns 206 and the installation frame 201. A connecting plate 208 is arranged on the sliding columns 206. A blocking box 202 is arranged on the installation frame 201. A first baffle 203 is slidably arranged on the blocking box 202. The first baffle 203 blocks the connecting plate 208. In the initial state, the second spring 207 is in a compressed state. When the first baffle 203 releases the blocking of the sliding columns 206, the deformation restoring force of the second spring 207 drives the sliding columns 206 to reset. The sliding columns 206 drive the second baffle 205 to move quickly, and the second baffle 205 is inserted into the circulation pipe 204. The second baffle 205 blocks the circulation pipe 204.

[0022] Working principle: During operation, the drill pipe 102 is passed through the collection box 101, the drill bit 103 is driven to work, the drill bit 103 drills into the exploration position, the retaining ring 104 is inserted into the ground, the collection box 101 is above the ground surface, and a hose is used to connect the water outlet 105 to the sedimentation tank. When drainage is required, water enters the collection box 101 through the retaining ring 104 and then enters the sedimentation tank through the water outlet 105. At the same time, part of the liquid passes through the diversion port 106, and the PH detector 107 is started. The PH detector 107 detects the PH value of the water at the diversion port 106.

[0023] During the drainage process, the rotating ring 108 is driven to rotate on the collection box 101. The rotating ring 108 drives multiple groups of stirring shafts 109 to rotate along the axis of the collection box 101. The stirring shafts 109 are driven to rotate on the rotating ring 108. The stirring shafts 109 drive the stirring heads 110 to rotate. The stirring heads 110 stir the liquid. At the same time, the stirring heads 110 are driven to slide on the stirring shafts 109, and the first spring 111 drives the stirring heads 110 to reset, realizing the reciprocating sliding of the stirring heads 110 and improving the stirring efficiency of the liquid in the collection box 101.

[0024] At the same time, the sliding frame 114 is driven to reciprocate in the mounting rod 112, the crushing head 115 is driven to rotate, and the crushing head 115 crushes larger solid substances in the water to avoid blocking the drainage in the retaining ring 104. The diversion plate 113 diverts the drainage to avoid excessive pressure in the retaining ring 104.

[0025] When the drain pipe leaks, a corresponding group of water outlets 105 needs to be urgently closed. The first grid plate 203 is driven to slide in the grid box 202. The first grid plate 203 releases the blocking of the connecting plate 208. At this time, the connecting plate 208 and the sliding column 206 are reset by the deformation restoring force of the second spring 207. The second grid plate 205 quickly inserts into the flow pipe 204 to complete the closing of the flow pipe 204. After the flow pipe 204 is closed, the liquid in the water outlet 105 cannot be discharged, realizing the rapid closing of the pipe.

[0026] The present utility model is not limited to the above specific embodiments. Those skilled in the art can make various transformations without creative labor starting from the above concepts, and all fall within the protection scope of the present utility model.

Claims

1. A drainage device for coalbed methane exploration and development, comprising a collecting assembly (1), characterized in that: The collecting assembly (1) comprises a collecting box (101), the upper end of the collecting box (101) is provided with a water outlet (105), the lower end of the collecting box (101) is provided with a retaining ring (104), the collecting box (101), the retaining ring (104) and the water outlet (105) are in communication, a processing mechanism is provided inside the collecting box (101), the processing mechanism comprises a crushing head (115) and a stirring head (110), the stirring head (110) stirs the extracted water to prevent the deposition of debris, and the crushing head (115) To break up larger pieces of debris and avoid clogging, a group of blocking components (2) are provided on the water outlet (105), and the blocking components (2) include a mounting frame (201), a flow pipe (204) is provided on the mounting frame (201), and the flow pipe (204) is installed on the water outlet (105). A blocking plate 2 (205) is slidably provided in the mounting frame (201), and the blocking plate 2 (205) blocks the flow pipe (204).

2. A drainage device for coalbed methane exploration and development according to claim 1, characterized in that: The collection box (101) is provided with a pH detector (107), the pH detector (107) is inserted into the diversion port (106), the diversion port (106) is provided between the collection box (101) and the water outlet (105), and the pH detector (107) detects the pH value of the drainage.

3. A drainage device for coalbed methane exploration and development according to claim 1, characterized in that: The processing mechanism comprises a rotating ring (108) rotatably mounted on the collection box (101), a plurality of stirring shafts (109) are rotatably mounted on the rotating ring (108), the stirring head (110) is slidably mounted on the stirring shaft (109), and a spring (111) is arranged between the stirring head (110) and the stirring shaft (109).

4. A drainage device for coalbed methane exploration and development according to claim 3, characterized in that: A mounting rod (112) is arranged at the lower end of the rotating ring (108), a sliding frame (114) is slidably arranged on the mounting rod (112), and the crushing head (115) is rotatably mounted on the sliding frame (114).

5. A drainage device for coalbed methane exploration and development according to claim 4, characterized in that: The installation rod (112) is provided with a diverter plate (113), and the lowest end of the diverter plate (113) faces the crushing head (115).

6. A drainage device for coalbed methane exploration and development according to claim 1, characterized in that: The second baffle plate (205) is provided with a sliding column (206), a second spring (207) is provided between the sliding column (206) and the mounting frame (201), and a connecting plate (208) is provided on the sliding column (206).

7. A drainage device for coalbed methane exploration and development according to claim 6, characterized in that: A blocking box (202) is arranged on the mounting frame (201), and a blocking plate (203) is slidably arranged inside the blocking box (202), and the blocking plate (203) blocks the connecting plate (208).

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