Air-tight seal deslagging device
By designing a sealing module and an air supply module in the airtight slag discharge device, the problem of poor sealing performance was solved, and an effective seal was achieved between the drill rod and the third pipe body, ensuring the normal movement and safety of the drill rod.
Patent Information
- Application Number
- CN202520691356.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-04-14
AI Technical Summary
The existing gas-tight slag discharge device has poor sealing performance, which leads to gas leakage and poses a safety hazard.
A gas-tight slag discharge device was designed, including a drill rod, a slag discharge assembly, and a blowout preventer assembly. A sealing space is formed between the drill rod and the third tube body by using a sealing module and a gas supply module. The sealing performance is ensured by supplying sealing gas, and the gas is evenly distributed and pressure is evenly distributed by the exhaust section.
It effectively prevents the gas-liquid mixture from leaking between the drill pipe and the third pipe body, ensuring the normal movement and sealing performance of the drill pipe and improving safety.
Smart Images
Figure CN223881140U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to drilling equipment technical field, specifically, relate to a gas seal slag discharge device. BACKGROUND
[0002] Coal mine is one of main energy sources in our country, and the safe exploitation of coal mine has been the focus of coal mining work. In the coal mine, there is usually gas, with the coal mining, gas will slowly release and gather in the mine, thereby causing potential safety hazard. Therefore, it is necessary to carry out exploration sampling, gas extraction and other work in advance through the drilling machine.
[0003] However, in this process, cooling liquid needs to be supplied to the drilling hole to prevent the temperature of the drilling hole from being too high, and the gas and waste water also need to be discharged through the slag discharge device. Due to the particularity of gas, the sealing performance of the slag discharge device has high requirements, and poor sealing performance will cause gas leakage and danger. SUMMARY
[0004] In order to solve the problem of poor sealing performance of the gas seal slag discharge device, the utility model provides a gas seal slag discharge device, which comprises:
[0005] A drill rod;
[0006] A slag discharge assembly, which comprises a first communication pipe, a second communication pipe, a box unit and a support unit; the box unit and the support unit are detachably connected; the box unit and the support unit jointly seal to form a slag discharge space; the first communication pipe is in communication with the box unit; the second communication pipe is in communication with the box unit;
[0007] A blowout prevention assembly, which comprises a blowout prevention unit and a sealing unit; the sealing unit and the blowout prevention unit are detachably connected; the blowout prevention unit and the support unit are detachably connected; the sealing unit comprises a sealing module and a gas supply module, the sealing module comprises a third pipe body, a second recessed groove part and a first exhaust part; the outer circumferential side of the third pipe body is recessed to form a second recessed groove part in the direction close to the central axis of the third pipe body; the inner circumferential wall of the blowout prevention unit and the second recessed groove part surround to form a sealing space; the gas supply module is in communication with the sealing space; a plurality of first exhaust parts penetrate the side wall of the third pipe body so that the sealing space is in communication with the inner circumferential wall of the third pipe body; a plurality of first exhaust parts are arranged in a circumferential direction along the side wall of the third pipe body; the drill rod penetrates the support unit, the sealing module, the box unit and the first communication pipe in sequence; the drill rod is arranged in a spaced manner with the first communication pipe;
[0008] The air-tight slag discharge device comprises a working state; the working state comprises the air supply module supplying sealing gas to the sealing space, and the sealing gas flows from the sealing space to the interval region between the drill pipe and the third pipe body through the first exhaust part.
[0009] In some embodiments, the sealing module further comprises a second exhaust part; a plurality of the second exhaust parts penetrate the side wall of the third pipe body; a plurality of the second exhaust parts are arranged in a circumferential direction along the side wall of the third pipe body; and the first exhaust part and the second exhaust part are arranged in an axial direction along the third pipe body.
[0010] In some embodiments, 30°≤A≤60°; wherein A is the included angle between the central axis of the first exhaust part and / or the second exhaust part and the central axis of the third pipe body.
[0011] In some embodiments, the inner peripheral wall of the third pipe body is recessed to the side away from the central axis of the third pipe body to form a first groove, and the first exhaust part penetrates the first groove.
[0012] In some embodiments, the inner peripheral wall of the third pipe body is recessed to the side away from the central axis of the third pipe body to form a second groove, and the second exhaust part penetrates the second groove; and the first groove and the second groove are arranged in an axial direction along the third pipe body.
[0013] In some embodiments, the slag discharge assembly further comprises a third communication pipe; the first box module further comprises a third hole; the third hole penetrates the side wall of the slag discharge box and communicates with the slag discharge space; the second hole is collinear with the central axis of the third hole; and the third communication pipe communicates with the third hole.
[0014] In some embodiments, the slag discharge assembly further comprises a slag baffle, one side of the slag baffle abuts against the side of the second hole close to the fourth hole; the fourth hole penetrates the side wall of the slag discharge box and communicates with the slag discharge space; the fourth hole is collinear with the central axis of the first hole; the other side of the slag baffle abuts against the side of the third hole close to the first hole; and the slag baffle is arranged in the slag discharge space.
[0015] In some embodiments, the box unit further comprises a second box module; the second box module comprises a rotating part and a second abutting part; the rotating part is fixedly connected with the second abutting part; one end of the rotating part is fixedly connected with the slag discharge box; and the other end of the rotating part abuts against the support unit.
[0016] In some embodiments, the residue discharging assembly further comprises a supporting unit; the supporting unit comprises a cover plate and a supporting module; the supporting module comprises a supporting part and a drainage hole; the drainage hole penetrates through the supporting part; one end of the supporting part is detachably connected with the blowout prevention unit; the other end of the supporting part is detachably connected with the first abutting part; the cover plate is detachably connected with the blowout prevention unit.
[0017] In some embodiments, the blowout prevention unit comprises a first pipe body, a first elastic body, a second pipe body and a second abutting part; the inner peripheral wall of the first pipe body is fixedly connected with the outer peripheral wall of part of the second pipe body; the second pipe body is fixedly connected with the second abutting part; one end of the first pipe body is detachably connected with the cover plate; the other end of the first pipe body is detachably connected with the supporting part; one end of the first elastic body is fixedly connected with the first pipe body; part of one side of the first elastic body abuts against the first abutting part; part of the other side of the first elastic body abuts against the cover plate.
[0018] To solve the problem of poor sealing performance of the gas-tight residue discharging device, the utility model has the following advantages:
[0019] The sealing module comprises a third pipe body, a second groove part and a first exhaust part, the inner peripheral wall of the blowout prevention unit and the second groove part and the third pipe body form a sealing space, the sealing gas is supplied into the sealing space through the gas supply module, the sealing gas flows from the sealing space into the interval between the drill pipe and the third pipe body through the first exhaust part, the sealing gas is supplied into the interval between the drill pipe and the third pipe body, the gas-liquid mixture is prevented from flowing out of the interval between the drill pipe and the third pipe body, and the sealing performance of the gas-tight residue discharging device is ensured. At the same time, through the design of the gas-tight sealing, the gas-tight residue discharging device can realize the sealing of the gas-tight residue discharging device on the basis of ensuring that the normal movement of the drill pipe is not affected. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 The gas-tight residue discharging device of the first embodiment is shown in the schematic view;
[0021] Figure 2 The gas-tight residue discharging device of the second embodiment is shown in the schematic view;
[0022] Figure 3 The gas-tight residue discharging device of the third embodiment is shown in the schematic view;
[0023] Figure 4 The gas-tight residue discharging device of the fourth embodiment is shown in the schematic view;
[0024] Figure 5 The gas-tight residue discharging device of the fifth embodiment is shown in the schematic view;
[0025] Figure 6A partial schematic diagram of the gas-tight slag discharge device of the first embodiment is shown;
[0026] Figure 7 A partial schematic diagram of the gas-tight slag discharge device according to the second embodiment is shown;
[0027] Figure 8 A partial schematic diagram of the gas-tight slag discharge device according to the third embodiment is shown;
[0028] Figure 9 A partial schematic diagram of the gas-tight slag discharge device according to the fourth embodiment is shown.
[0029] Reference numerals: 01 Drill rod; 02 Slag discharge assembly; 21 First connecting pipe; 22 Second connecting pipe; 23 Third connecting pipe; 24 Slag baffle plate; 25 Box unit; 251 First box module; 2511 Sealing plate; 2512 Slag discharge box; 2513 First hole; 2514 Second hole; 2515 Third hole; 2516 Fourth hole; 2517 Fifth hole; 2518 Sixth hole; 252 Second box module; 2521 Rotating part; 2522 First abutting part; 26 Support unit; 261 Cover plate; 262 Support module; 2621 Support part; 2622 Drainage hole; 03 Fixing assembly; 3 1 First fastening part; 32 Second fastening part; 04 Blowout preventer assembly; 41 Blowout preventer unit; 411 First elastomer; 412 First tube body; 413 Second abutment part; 414 Second tube body; 415 Extension tube; 42 Sealing unit; 421 Sealing module; 4211 Connecting part; 4212 First groove; 4213 Second groove; 4214 First recessed part; 4215 Second recessed part; 4216 First exhaust part; 4217 Second exhaust part; 4218 Third tube body; 4219 Second elastomer; 422 Air supply module; 4221 Connecting tube; 4222 Air supply part; 4223 Transition joint. Detailed Implementation
[0030] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.
[0031] As used herein, the term "includes" and its variants are to be read as open-ended terms that mean "including, but not limited to." The term "based on" is to be construed as "based at least in part on." The terms "one embodiment" and "an embodiment" are to be read as "at least one embodiment." The term "another embodiment" is to be read as "at least one other embodiment." The terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," "longitudinal," and similar terms are used for orientation or positional relationships based on the orientation or position as shown in the drawings. These terms are used merely for purposes of description and are not intended to limit the indicated device, element, or component to a particular position, orientation, or configuration, unless otherwise indicated by the specific context. Also, these terms are used in conjunction with the terms "coupled" and "connected" to describe the position, orientation, and connection of a device, element, or component relative to another device, element, or component. These terms are used in the same sense as "connected," unless otherwise indicated. For example, a device or element can be "connected" or "coupled" to another device or element by an indirect connection, and "coupled" or "connected" can mean the device or element is either directly connected to the other device or element, or is indirectly connected through one or more intermediate devices or elements. Unless otherwise indicated, the terms "coupled" and "connected" are to be construed as partially or fully interconnected (either directly or indirectly). Also, the terms "first," "second," and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Unless otherwise indicated, the meaning of "a," "an," and "the" include plural references.
[0032] In the present embodiment, during the process of coal mining, it is necessary to carry out exploration sampling, gas extraction and other work in advance by a drilling machine. In this process, cooling liquid needs to be supplied to the drilling hole, and gas and waste water need to be discharged. Due to the particularity of the gas, the sealing performance of the slag discharge device is required to be high. The present embodiment discloses a gas-tight slag discharge device. As shown in Figure 1 The drilling rod 01 can be a hollow pipe so that the cooling liquid can flow to the drilling position through the hollow cavity of the drilling rod 01 to cool the drilling position. As shown in Figure 2As shown, the deslagging assembly 02 can include a first communication pipe 21, a second communication pipe 22, a box unit 25, and a support unit 26. The box unit 25 and the support unit 26 are detachably connected. The box unit 25 can be jointly sealed with the support unit 26 to form a deslagging space. The first communication pipe 21 can be in communication with the box unit 25, so that the gas-liquid mixture can flow into the deslagging space through the first communication pipe 21. The second communication pipe 22 can be in communication with the box unit 25, so that the gas-liquid mixture can flow out through the second communication pipe 22.
[0033] The blowout prevention assembly 04 can include a blowout prevention unit 41 and a sealing unit 42. The sealing unit 42 is detachably connected with the blowout prevention unit 41. The blowout prevention unit 41 is detachably connected with the support unit 26. As shown, Figure 6 As shown, the sealing unit 42 can include a sealing module 421 and a gas supply module 422. The sealing module 421 can include a third pipe body 4218, a second groove portion 4215, and a first exhaust portion 4216. The third pipe body 4218 can be made of brass. The outer peripheral side of the third pipe body 4218 can be recessed to form the second groove portion 4215 towards the central axis of the third pipe body 4218. The inner peripheral wall of the blowout prevention unit 41 can be surrounded by the second groove portion 4215 to form a sealing space. The gas supply module 422 can be in communication with the sealing space. A plurality of first exhaust portions 4216 can penetrate the side wall of the third pipe body 4218, so that the sealing space can be in communication with the inner peripheral wall of the third pipe body 4218, and the gas in the sealing space can flow into the interval between the drill pipe 01 and the third pipe body 4218 through the plurality of first exhaust portions 4216. The plurality of first exhaust portions 4216 can be circumferentially spaced apart along the side wall of the third pipe body 4218, to ensure that the gas pressure on the circumferential side of the interval between the drill pipe 01 and the third pipe body 4218 is uniform, and further to ensure the sealing property of the interval between the drill pipe 01 and the third pipe body 4218. The drill pipe 01 can sequentially penetrate the support unit 26, the sealing module 421, the box unit 25, and the first communication pipe 21. The drill pipe 01 can be spaced apart from the first communication pipe 21, so that the gas-liquid mixture can flow into the deslagging space through the interval between the drill pipe 01 and the first communication pipe 21, to ensure that the gas-liquid mixture can flow out smoothly. In some other embodiments, the gas-tight blowout prevention device can further include a fixing assembly 03, which can include a first fastening portion 31 and a second fastening portion 32. The first fastening portion 31 can be detachably connected with the deslagging box 2512. The second fastening portion 32 can be connected with other drilling devices, to ensure the fixation between the gas-tight blowout prevention device and other equipment.
[0034] The air-tight de-sludging device can include a working state. The working state can include the gas supply module 422 supplying sealing gas to the sealing space, and the sealing gas can flow from the sealing space to the interval region between the drill pipe 01 and the third pipe body 4218 through the first exhaust part 4216. When the drill pipe 01 is drilling, the drilling position can be cooled by supplying cooling liquid to the hollow cavity of the drill pipe 01, so as to prevent the drilling position from being too high in temperature. The cooling liquid flowing through the drilling position can flow into the de-sludging space through the interval between the drill pipe 01 and the first communication pipe 21, so as to ensure that the gas-liquid mixture can smoothly flow out of the second communication pipe 22 through the de-sludging space. At this time, the gas supply module 422 can supply sealing gas to the sealing space, and the sealing gas can flow from the sealing space to the interval region between the drill pipe 01 and the third pipe body 4218 through the first exhaust part 4216. By arranging the air-tight de-sludging device, the drill pipe 01 can be relatively moved with the third pipe body 4218 while ensuring the sealing between the drill pipe 01 and the third pipe body 4218. In other embodiments, as shown in Figure 4 The gas supply module 422 can include a connecting pipe 4221, a gas supply part 4222, and a transition joint 4223. The transition joint 4223 can supply gas to the gas supply part 4222 through the connecting pipe 4221, and then supply gas to the sealing space.
[0035] In this embodiment, the sealing module 421 can further include a second exhaust part 4217. The plurality of second exhaust parts 4217 can penetrate the side wall of the third pipe body 4218, so that the gas in the sealing space can flow into the interval region between the drill pipe 01 and the third pipe body 4218 through the plurality of second exhaust parts 4217. The plurality of second exhaust parts 4217 can be arranged in a circumferential interval along the side wall of the third pipe body 4218, so as to ensure that the gas pressure of the interval region between the drill pipe 01 and the third pipe body 4218 is uniform, and further ensure the sealing of the interval region between the drill pipe 01 and the third pipe body 4218. The first exhaust part 4216 and the second exhaust part 4217 can be arranged in an axial interval along the third pipe body 4218, so as to further ensure that the pressure of the interval region between the drill pipe 01 and the third pipe body 4218 is uniform in the axial direction.
[0036] In this embodiment, 30°≤A≤60°; wherein A is the included angle between the central axis of the first exhaust part 4216 and / or the second exhaust part 4217 and the central axis of the third pipe body 4218, and preferably A can be 45°. By slightly upwardly arranging the exhaust port of the first exhaust part 4216 and / or the second exhaust part 4217, the gas flowing out of the first exhaust part 4216 and / or the second exhaust part 4217 can have an initial upward kinetic energy, so that the gas can better prevent the gas-liquid mixture from flowing out from above, and further ensure the sealing effect of the first exhaust part 4216 and / or the second exhaust part 4217.
[0037] In the embodiment, the inner circumferential wall of the third pipe body 4218 can be recessed to form a first groove 4212 away from the central axis of the third pipe body 4218, and the first exhaust part 4216 can pass through the first groove 4212. Preferably, the first groove 4212 can be V-shaped. By arranging the first groove 4212, the gas flowing into the interval between the drill pipe 01 and the third pipe body 4218 can be temporarily stored in the interval between the drill pipe 01 and the third pipe body 4218, so that the gas pressure in the interval between the drill pipe 01 and the third pipe body 4218 is increased, and the airtightness of the interval between the drill pipe 01 and the third pipe body 4218 is further ensured.
[0038] In the embodiment, the inner circumferential wall of the third pipe body 4218 can be recessed to form a second groove 4213 away from the central axis of the third pipe body 4218, and the second exhaust part 4217 can pass through the second groove 4213; preferably, the second groove 4213 can be V-shaped. By arranging the second groove 4213, the gas flowing into the interval between the drill pipe 01 and the third pipe body 4218 can be temporarily stored in the interval between the drill pipe 01 and the third pipe body 4218, so that the gas pressure in the interval between the drill pipe 01 and the third pipe body 4218 is increased, and the airtightness of the interval between the drill pipe 01 and the third pipe body 4218 is further ensured. The first groove 4212 and the second groove 4213 can be arranged at intervals in the axial direction of the third pipe body 4218, so as to further ensure the uniformity of the pressure in the axial direction of the interval between the drill pipe 01 and the third pipe body 4218. In other embodiments, the sealing module 421 can further include a first recess part 4214, a connecting part 4211 and a second elastic body 4219. The end of the third pipe body 4218 away from the gas supply module 422 can be recessed to form a first recess part 4214 on the side of the third pipe body 4218 close to the gas supply module 422, and the second elastic body 4219 can be placed in the first recess part 4214. The sealing between the third pipe body 4218 and the first abutting part 2522 is ensured by the extrusion deformation of the second elastic body 4219. The end of the third pipe body 4218 close to the gas supply module 422 can be fixedly connected with the connecting part 4211, and the connecting part 4211 can be detachably connected with the second pipe body 414. Preferably, rubber can be injected between the connecting part 4211 and the second pipe body 414 to ensure the sealing between the connecting part 4211 and the second pipe body 414.
[0039] In the embodiment, as Figure 3As shown, the residue discharging assembly 02 can further include a third communication pipe 23; the first box module 251 can further include a third hole 2515; the third hole 2515 can pass through the side wall of the residue discharging box 2512 and communicate with the residue discharging space; the center axis of the second hole 2514 and the third hole 2515 can be collinear; the third communication pipe 23 can communicate with the third hole 2515, so that the gas-liquid mixture can flow out of the third hole 2515, by allowing the gas-liquid mixture to flow out of the second communication pipe 22 and the third communication pipe 23 at the same time, the working efficiency of the gas seal blowout preventer is increased.
[0040] In the embodiment, as shown in Figure 7 As shown, the residue discharging assembly 02 can further include a residue blocking plate 24. One side of the residue blocking plate 24 can abut against the side of the second hole 2514 close to the fourth hole 2516; wherein the fourth hole 2516 passes through the side wall of the residue discharging box 2512 and communicates with the residue discharging space; the center axis of the fourth hole 2516 and the first hole 2513 are collinear; the other side of the residue blocking plate 24 can abut against the side of the third hole 2515 close to the first hole 2513; the residue blocking plate 24 can be arranged in the residue discharging space. By arranging the residue blocking plate 24, the gas in the gas-liquid mixture flowing into the residue discharging box 2512 from the first communication pipe 21 can flow out of the third hole 2515 as much as possible, and the liquid can flow out of the second hole 2514 more, realizing the separation of gas and liquid, and facilitating the collection of gas and liquid in the next step.
[0041] In the embodiment, the box unit 25 can further include a second box module 252; the second box module 252 can include a rotating part 2521 and a second abutting part 413; the rotating part 2521 can be fixedly connected with the second abutting part 413; one end of the rotating part 2521 can be fixedly connected with the residue discharging box 2512; the other end of the rotating part 2521 can abut against the supporting unit 26. Since the drilling device is working, the center axis of the fourth hole 2516 and the first hole 2513 of the gas seal blowout preventer can form a certain angle with the vertical direction at this time, which can cause the distance between the second hole 2514 and the ground to be greater than the distance between the third hole 2515 and the ground, thereby causing the gas and the liquid to be difficult to separate, and the liquid can flow out of the third hole 2515 in a large amount, at this time, the gas seal blowout preventer can be rotated through the rotating part 2521, to ensure that the distance between the second hole 2514 and the ground is less than the distance between the third hole 2515 and the ground, so that the gas in the gas-liquid mixture flowing into the residue discharging box 2512 from the first communication pipe 21 can flow out of the third hole 2515 as much as possible, and the liquid can flow out of the second hole 2514 more, realizing the separation of gas and liquid. In other embodiments, the first box module 251 can further include a fifth hole 2517 and a sixth hole 2518, as shown in Figure 8 As shown, the fifth hole 2517 can be arranged on the residue discharging box 2512. As shown in Figure 9As shown, the sixth hole 2518 can be arranged on the residue discharging box 2512. The fifth hole 2517 can be detachably connected with the sealing plate 2511, and the sixth hole 2518 can be detachably connected with the sealing plate 2511. When the rotating part 2521 cannot rotate the gas-tight residue discharging assembly 02, the gas and / or liquid can be discharged from the fifth hole 2517 and / or the sixth hole 2518.
[0042] In the embodiment, the residue discharging assembly 02 can further include a supporting unit 26. The supporting unit 26 can include a cover plate 261 and a supporting module 262. The supporting module 262 can include a supporting part 2621 and a drainage hole 2622. The drainage hole 2622 can penetrate through the supporting part 2621, so that the liquid flowing into the supporting part 2621 can flow out through the drainage hole 2622, preventing the liquid in the gas-tight residue discharging assembly 02 from not being completely discharged. One end of the supporting part 2621 is detachably connected with the blowout prevention unit 41, and the other end of the supporting part 2621 is detachably connected with the first abutting part 2522. By arranging the supporting part 2621, the drill pipe 01 can be prevented from being skewed during drilling.
[0043] In the embodiment, the blowout prevention unit 41 can include a first pipe body 412, a first elastic body 411, a second pipe body 414, and a second abutting part 413. The inner peripheral wall of the first pipe body 412 is fixedly connected with the outer peripheral wall of part of the second pipe body 414. The second pipe body 414 is fixedly connected with the second abutting part 413. One end of the first pipe body 412 is detachably connected with the cover plate 261, and the other end of the first pipe body 412 is detachably connected with the supporting part 2621. One end of the first elastic body 411 is fixedly connected with the first pipe body 412, preventing the relative displacement between the first elastic body 411 and the first pipe body 412. One side of the first elastic body 411 can partially abut against the first abutting part 2522, and the other side of the first elastic body 411 can partially abut against the cover plate 261. The cover plate 261 can be slightly extruded towards the first elastic body 411, so that the first elastic body 411 is elastically deformed, thereby better ensuring the sealing of the residue discharging box 2512 at the first elastic body 411. In other embodiments, as shown in FIG. 6, the blowout prevention unit 41 can further include a first elastic body 411a. One end of the first elastic body 411a is fixedly connected with the first pipe body 412, and the other end of the first elastic body 411a is fixedly connected with the cover plate 261. The first elastic body 411a can be arranged between the first pipe body 412 and the cover plate 261, and the first elastic body 411a can be elastically deformed to better ensure the sealing of the residue discharging box 2512 at the first elastic body 411a. Figure 5 As shown, the blowout prevention unit 41 can further include an extension pipe 415. One end of the extension pipe 415 is fixedly connected with the second abutting part 413, and the other end of the extension pipe 415 extends towards the first communication pipe 21. The extension pipe 415 can penetrate through the residue blocking plate 24, thereby further preventing the gas-liquid mixture from entering the interval region between the third pipe body 4218 and the drill pipe 01.
[0044] Those skilled in the art can understand that the above-mentioned embodiments are specific cases for implementing the present disclosure, and in actual applications, various changes can be made in form and details without departing from the scope of the present disclosure.
Claims
1. A gas-tight slag removal device, characterized in that The air-tight sealed residue discharging device comprises: a drill pipe; a residue discharging assembly comprising a first communication pipe, a second communication pipe, a box unit and a support unit; the box unit and the support unit are detachably connected; the box unit and the support unit jointly seal a residue discharging space; the first communication pipe is in communication with the box unit; the second communication pipe is in communication with the box unit; a blowout preventer assembly comprising a blowout preventer unit and a sealing unit; the sealing unit is detachably connected with the blowout preventer unit; the blowout preventer unit is detachably connected with the support unit; the sealing unit comprises a sealing module and a gas supply module; the sealing module comprises a third pipe body, a second recessed portion and a first exhaust portion; the outer periphery of the third pipe body is recessed towards the central axis direction of the third pipe body to form a second recessed portion; the inner periphery wall of the blowout preventer unit and the second recessed portion jointly form a sealing space; the gas supply module is in communication with the sealing space; a plurality of first exhaust portions penetrate the side wall of the third pipe body to make the sealing space in communication with the inner periphery wall of the third pipe body; a plurality of first exhaust portions are arranged along the circumferential direction of the side wall of the third pipe body; the drill pipe penetrates the support unit, the sealing module, the box unit and the first communication pipe in sequence; the drill pipe is arranged in space with the first communication pipe; The air-tight sealed residue discharging device comprises a working state; the working state comprises that the gas supply module supplies sealing gas to the sealing space, and the sealing gas flows from the sealing space to the space between the drill pipe and the third pipe body through the first exhaust portion.
2. The air-tight sealed residue discharging device according to claim 1, wherein the sealing module further comprises a second exhaust portion; a plurality of second exhaust portions penetrate the side wall of the third pipe body; a plurality of second exhaust portions are arranged along the circumferential direction of the side wall of the third pipe body; the first exhaust portion and the second exhaust portion are arranged in space along the axial direction of the third pipe body.
3. The air-tight sealed residue discharging device according to claim 1, wherein 30°≤A≤60°; wherein A is the included angle between the central axis of the first exhaust portion and / or the second exhaust portion and the central axis of the third pipe body.
4. The air-tight sealed residue discharging device according to claim 1, wherein the inner periphery wall of the third pipe body is recessed towards the side away from the central axis of the third pipe body to form a first groove, and the first exhaust portion penetrates the first groove.
5. The air-tight sealed residue discharging device according to claim 4, wherein the inner periphery wall of the third pipe body is recessed towards the side away from the central axis of the third pipe body to form a second groove, and the second exhaust portion penetrates the second groove; the first groove and the second groove are arranged in space along the axial direction of the third pipe body.
6. The air-tight sealed residue discharging device according to claim 1, wherein the residue discharging assembly further comprises a third communication pipe; the first box module further comprises a third hole; the third hole penetrates the side wall of the residue discharging box and is in communication with the residue discharging space; the central axis of the second hole is collinear with the central axis of the third hole; the third communication pipe is in communication with the third hole.
7. The air-tight slag discharge device according to claim 6, characterized in that, the slag discharge assembly further comprises a slag baffle, one side of the slag baffle abuts against one side of the second hole close to the fourth hole; wherein the fourth hole penetrates through the side wall of the slag discharge box and communicates with the slag discharge space; the fourth hole is collinear with the central axis of the first hole; the other side of the slag baffle abuts against one side of the third hole close to the first hole; and the slag baffle is arranged in the slag discharge space.
8. The air-tight slag discharge device according to claim 1, characterized in that, the box unit further comprises a second box module; the second box module comprises a rotating part and a second abutting part; the rotating part is fixedly connected with the second abutting part; one end of the rotating part is fixedly connected with the slag discharge box; and the other end of the rotating part abuts against the support unit.
9. The air-tight slag discharge device according to claim 1, characterized in that, the slag discharge assembly further comprises a support unit; the support unit comprises a cover plate and a support module; the support module comprises a support part and a drainage hole; the drainage hole penetrates through the support part; one end of the support part is detachably connected with the blowout prevention unit; the other end of the support part is detachably connected with the first abutting part; and the cover plate is detachably connected with the blowout prevention unit.
10. The air-tight slag discharge device according to claim 9, characterized in that, the blowout prevention unit comprises a first tube body, a first elastic body, a second tube body and a second abutting part; the inner peripheral wall of the first tube body is fixedly connected with the outer peripheral wall of part of the second tube body; the second tube body is fixedly connected with the second abutting part; one end of the first tube body is detachably connected with the cover plate; the other end of the first tube body is detachably connected with the support part; one end of the first elastic body is fixedly connected with the first tube body; one side part of the first elastic body abuts against the first abutting part; and the other side part of the first elastic body abuts against the cover plate.