Pressure measurement drilling blowout prevention transition device
By designing the pressure measurement drilling anti-blast transition device, the rapid switching of the spare bus pipe and four-way valve is used to solve the safety threat of gas spray holes during underground drilling construction of coal mines, the continuous operation and safety control of the system are achieved, and safety accidents caused by gas spraying are avoided.
Patent Information
- Application Number
- CN202422769844.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-11-14
AI Technical Summary
During the underground drilling process of coal mines, high gas pressure may lead to hole spraying, threatening personnel safety and increasing the risk of explosion, and it is difficult for the existing technology to effectively control gas ejection.
A pressure-measuring drilling anti-blast transition device is designed, including a separation box, the first and second connecting seats, the outlet assembly, the nozzle preventing pipe and the four-way valve. By setting up a backup bus tube and the four-way valve, rapid switching is achieved to ensure the continuous operation of the system, and guide the gas to the safe area through the nozzle preventing pipe to avoid disorderly jetting.
It significantly reduces system downtime, ensures continuous monitoring and data collection, prevents explosions and fire accidents, and protects the safety of on-site personnel and equipment.
Smart Images
Figure CN223256879U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of equipment in geological drilling, and in particular relates to a pressure-measuring drilling blowout prevention transition device. Background Art
[0002] Coal seam gas pressure in underground coal mines is the foundation of coal mine gas control and a crucial indicator for coal mine safety production. It plays a decisive role in determining basic gas parameters, identifying coal and gas outburst hazards, performing rock-cutting operations, and evaluating compliance with extraction standards. During underground drilling operations in coal mines, if the coal seam contains a high gas content and high pressure, blowouts are highly likely. If appropriate measures are not taken, this can lead to excessive gas levels within the tunnels. High gas pressure can cause blowouts, resulting in the sudden release of large amounts of gas, seriously impacting the working environment and personnel safety. Exceeding gas concentration limits can lead to excessively high gas concentrations within the tunnels, increasing the risk of explosion and threatening personnel safety. High concentrations of gas mixed with air and encountering a fire source can cause explosions, resulting in serious casualties and property damage.
[0003] In summary, there is a problem that the blowout holes may easily pose a safety threat when drilling for pressure measurement. Utility Model Content
[0004] In view of this, the utility model provides a pressure-measuring drilling blowout prevention transition device, which can avoid accidents such as gas exceeding the limit caused by abnormal gas outflow from the drilling hole to a certain extent.
[0005] The utility model is achieved in this way:
[0006] The utility model provides a pressure measuring drilling blowout prevention transition device, which includes a separation box, a first connecting seat, a second connecting seat and a water outlet assembly, wherein the separation box is used to separate steam and water from the depressurized mixed gas, the first connecting seat and the second connecting seat are fixedly connected on the upper top surface of the separation box, the first connecting seat and the second connecting seat pass through the upper top surface of the separation box and extend to the interior of the separation box, the first connecting seat and the second connecting seat are both provided with a switch valve, the water outlet assembly is fixedly connected to the side wall of the separation box, the water outlet assembly is used to discharge the accumulated water inside the separation box, the upper top surface of the separation box is fixedly connected to an air outlet pipe, the air outlet pipe is used to discharge gas, one end of a manifold is threadedly connected to the first connecting seat, the other end of the manifold is threadedly connected to a four-way valve, the four-way valve is threadedly connected to the blowout preventer, and the four-way valve is fixedly connected to a pressure gauge.
[0007] The technical effects of a pressure-testing borehole blowout prevention transition device provided by the present invention are as follows: by providing a first connecting seat and a second connecting seat, when a manifold is blocked or requires maintenance, the spare manifold can be immediately put into use, thereby significantly reducing the downtime of the system. This is crucial for maintaining continuous monitoring and data acquisition, especially in gas extraction where real-time data is required. The first connecting seat and the second connecting seat are used as a primary and a backup, respectively, to ensure that when a problem occurs with the manifold connected to the first connecting seat, the second connecting seat connected to the new manifold can still maintain normal operation, avoiding shutdowns or data interruptions. By providing a blowout preventer, the flow of accidentally ejected gas or liquid can be effectively controlled and guided to prevent disorderly ejection and reduce threats to personnel and equipment; by directing the erupted gas or liquid to a safe discharge area, the blowout preventer protects on-site personnel and facilities and prevents explosions, fires or other safety accidents. By providing a water outlet assembly, excessive accumulation of liquid can be prevented from flowing out of the gas outlet pipe or backflowing from the manifold. By setting up a four-way valve, when one of the manifolds fails or is blocked, the system can be quickly switched to the backup pipeline to avoid shutdown. This redundant design ensures the continuous operation of the system and reduces system downtime caused by single pipeline failure.
[0008] On the basis of the above technical solution, the pressure-testing drilling blowout prevention transition device of the utility model can also be improved as follows:
[0009] In which, the four-way valve includes a four-way body, a first port, a second port, a third port, a fourth port, a first gate valve and a second gate valve. The four-way body is fixedly connected to the first port, the second port, the third port and the fourth port respectively. The first port is fixedly connected to the pressure gauge, and the pressure gauge is used to measure the pressure of the gas. The second port is connected to the blowout preventer by a thread. The first gate valve is provided on the third port, and the second gate valve is provided on the fourth port.
[0010] Furthermore, the third port and the fourth port are adapted to ports of the lubricant preventer, and the third port is connected to the lubricant preventer via threads.
[0011] Furthermore, the water outlet assembly includes a first water outlet pipe and a second water outlet pipe, both of which are fixedly connected to the side wall of the separation box, and the first water outlet pipe and the second water outlet pipe pass through the side wall of the separation box and extend to the interior of the separation box.
[0012] Furthermore, the second water outlet pipe is located above the first water outlet pipe, and the height of the second water outlet pipe is 1 / 2 of the height of the separation box.
[0013] The beneficial effect of adopting the above-mentioned improvement scheme is that by providing the second water outlet pipe, drainage can continue after the first water outlet pipe is accidentally blocked, thereby improving the fault tolerance of the entire device.
[0014] Furthermore, the port of the manifold is adapted to both the first connecting seat and the second connecting seat.
[0015] Furthermore, the outer sides of the manifold and the blowout preventer are wrapped with a spring-shaped metal protective layer.
[0016] The beneficial effect of adopting the above-mentioned improvement scheme is that the spring-shaped metal protective layer can effectively protect the internal pipe from external physical damage, such as squeezing, abrasion or scratching, which helps to extend the service life of the pipe.
[0017] Furthermore, the first water outlet pipe is located at the bottom of the side wall of the separation box.
[0018] Furthermore, a baffle is fixedly connected to the interior of the separation box, one end of the baffle is fixedly connected to the lower bottom surface of the separation box, the air outlet pipe is located on one side of the baffle, and the first connecting seat and the second connecting seat are located on the other side of the baffle.
[0019] The beneficial effect of adopting the above-mentioned improvement scheme is that the baffle can block the movement of a portion of sand and gravel entering the separation box, thereby preventing the sand and gravel from being deposited at the bottom of the separation box and clogging the first water outlet pipe with the flow of water.
[0020] Furthermore, the height of the baffle is less than 1 / 3 of the height of the separation box.
[0021] Compared with the prior art, the beneficial effect of the pressure-testing borehole blowout prevention transition device provided by the present invention is that by providing a first connecting seat and a second connecting seat, when a manifold becomes blocked or requires maintenance, a spare manifold can be immediately put into use, thereby significantly reducing system downtime. This is crucial for maintaining continuous monitoring and data acquisition, especially in gas extraction where real-time data is required. The first connecting seat and the second connecting seat, one for primary use and one for backup, can ensure that when a problem occurs with the manifold connected to the first connecting seat, the second connecting seat connected to the new manifold can still maintain normal operation, avoiding shutdowns or data interruptions. By providing a blowout preventer, the flow of accidentally ejected gas or liquid can be effectively controlled and guided, preventing its disorderly ejection and reducing the threat to personnel and equipment. By directing the erupted gas or liquid to a safe discharge area, the blowout preventer protects on-site personnel and facilities and prevents explosions, fires, or other safety accidents. By providing a water outlet assembly, excessive accumulation of liquid can be prevented from flowing out of the gas outlet pipe or backflowing from the manifold. By setting up a four-way valve, when one of the manifolds fails or is blocked, the system can be quickly switched to the backup pipeline to avoid shutdown. This redundant design ensures the continuous operation of the system and reduces system downtime caused by single pipeline failure. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0023] Figure 1 This is a structural diagram of a pressure-measuring drilling blowout prevention transition device;
[0024] Figure 2 It is a structural diagram of A;
[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0026] 10. Separation box; 11. First connecting seat; 12. Second connecting seat; 13. First water outlet pipe; 14. Second water outlet pipe; 15. Air outlet pipe; 16. Confluence pipe; 17. Blowout preventer; 18. Four-way valve; 181. Four-way body; 182. First port; 183. Second port; 184. Third port; 185. Fourth port; 186. First gate valve; 187. Second gate valve; 19. Pressure gauge. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
[0028] like Figure 1-2 As shown, it is an embodiment of a pressure-testing and blowout-proof transition device provided by the present invention. In this embodiment, it includes a separation box 10, a first connecting seat 11, a second connecting seat 12 and a water outlet assembly. The separation box 10 is used to separate the steam and water from the depressurized mixed gas. The first connecting seat 11 and the second connecting seat 12 are fixedly connected on the upper top surface of the separation box 10. The first connecting seat 11 and the second connecting seat 12 pass through the upper top surface of the separation box 10 and extend to the interior of the separation box 10. The first connecting seat 11 and the second connecting seat 12 are fixedly connected on the upper top surface of the separation box 10. The seats 12 are each provided with a switch valve, and a water outlet assembly is fixedly connected to the side wall of the separation box 10. The water outlet assembly is used to discharge the accumulated water inside the separation box 10. An air outlet pipe 15 is fixedly connected to the upper top surface of the separation box 10. The air outlet pipe 15 is used to discharge gas. One end of the manifold 16 is threadedly connected to the first connecting seat 11, and the other end of the manifold 16 is threadedly connected to the four-way valve 18. The four-way valve 18 is threadedly connected to the blowout preventer 17, and the four-way valve 18 is fixedly connected to the pressure gauge 19.
[0029] In the above technical solution, the four-way valve 18 includes a four-way body 181, a first port 182, a second port 183, a third port 184, a fourth port 185, a first gate valve 186 and a second gate valve 187. The four-way body 181 is fixedly connected to the first port 182, the second port 183, the third port 184 and the fourth port 185 respectively. The first port 182 is fixedly connected to the pressure gauge 19, and the pressure gauge 19 is used to measure the pressure of the gas. The second port 183 is connected to the blowout preventer 17 by a thread. The first gate valve 186 is provided on the third port 184, and the second gate valve 187 is provided on the fourth port 185.
[0030] Furthermore, in the above technical solution, the third port 184 and the fourth port 185 are adapted to the ports of the lubricator 17 , and the third port 184 is connected to the lubricator 17 via threads.
[0031] Furthermore, in the above technical solution, the water outlet assembly includes a first water outlet pipe 13 and a second water outlet pipe 14, and the first water outlet pipe 13 and the second water outlet pipe 14 are both fixedly connected to the side wall of the separation box 10, and the first water outlet pipe 13 and the second water outlet pipe 14 pass through the side wall of the separation box 10 and extend to the interior of the separation box 10.
[0032] Furthermore, in the above technical solution, the second water outlet pipe 14 is located above the first water outlet pipe 13 , and the height of the second water outlet pipe 14 is 1 / 2 of the height of the separation box 10 .
[0033] Furthermore, in the above technical solution, the ports of the manifold 16 are adapted to both the first connecting seat 11 and the second connecting seat 12 .
[0034] Furthermore, in the above technical solution, the outer sides of the manifold 16 and the blowout preventer 17 are both wrapped with a spring-shaped metal protective layer.
[0035] Furthermore, in the above technical solution, the first water outlet pipe 13 is located at the bottom of the side wall of the separation box 10 .
[0036] Furthermore, in the above technical solution, a baffle is fixedly connected to the interior of the separation box 10, one end of the baffle is fixedly connected to the lower bottom surface of the separation box 10, the air outlet pipe 15 is located on one side of the baffle, and the first connecting seat 11 and the second connecting seat 12 are located on the other side of the baffle.
[0037] Furthermore, in the above technical solution, the height of the baffle is less than 1 / 3 of the height of the separation box 10 .
[0038] During use, the blowout preventer 17 is inserted into the drill hole, and the gas and water vapor carry a part of the soil and gravel into the four-way body 181 through the second port 183 and enter the interior of the separation box 10 through the manifold 16 and the first connecting seat 11. The gas is discharged through the air outlet pipe 15, and the water vapor will remain in the interior of the separation box 10 and finally be discharged from the first water outlet pipe 13. Due to the obstruction of the baffle, solid debris will be deposited on the right side of the baffle. As the water flow accumulates, some solid debris will be washed to the left side of the baffle, thereby blocking the first water outlet pipe 13 and causing poor water outlet. After the water level rises, it can be discharged through the second water outlet pipe 14.
[0039] When the outflowing gas is mixed with a large amount of impurities, the manifold 16 may be blocked or damaged. At this time, take out a new spare manifold 16 and connect it between the fourth port 185 and the second connecting seat 12, and open the second gate valve 187 and the valve on the second connecting seat 12. At the same time, close the first gate valve 186 and the valve on the first connecting seat 11. The gas will flow from the new manifold 16 into the separation box 10. At this time, the blocked manifold 16 can be removed for cleaning.
[0040] Specifically, the principle of the present invention is: when in use, the blowout preventer 17 is inserted into the drill hole, and the gas and water vapor carry a part of the soil and gravel into the four-way body 181 through the second port 183 and enter the interior of the separation box 10 through the manifold 16 and the first connecting seat 11. The gas is discharged through the air outlet pipe 15, and the water vapor will remain in the interior of the separation box 10 and finally be discharged from the first water outlet pipe 13. Due to the obstruction of the baffle, solid debris will be deposited on the right side of the baffle. With the accumulation of water flow, part of the solid debris will be washed to the left side of the baffle, thereby blocking the first water outlet pipe 13 and causing poor water outlet. After the water level rises, it can be discharged through the second water outlet pipe 14.
[0041] When the outflowing gas is mixed with a large amount of impurities, the manifold 16 may be blocked or damaged. At this time, take out a new spare manifold 16 and connect it between the fourth port 185 and the second connecting seat 12, and open the second gate valve 187 and the valve on the second connecting seat 12. At the same time, close the first gate valve 186 and the valve on the first connecting seat 11. The gas will flow from the new manifold 16 into the separation box 10. At this time, the blocked manifold 16 can be removed for cleaning.
Claims
1. A pressure-testing drilling blowout prevention transition device, characterized in that: The invention comprises a separation box (10), a first connecting seat (11), a second connecting seat (12) and a water outlet assembly, wherein the separation box (10) is used for separating steam and water from the depressurized mixed gas, the first connecting seat (11) and the second connecting seat (12) are fixedly connected on the upper top surface of the separation box (10), the first connecting seat (11) and the second connecting seat (12) pass through the upper top surface of the separation box (10) and extend to the interior of the separation box (10), the first connecting seat (11) and the second connecting seat (12) are both provided with a switch valve, and the separation box The water outlet assembly is fixedly connected to the side wall of the separation box (10), and the water outlet assembly is used to discharge the accumulated water inside the separation box (10). The air outlet pipe (15) is fixedly connected to the upper top surface of the separation box (10), and the air outlet pipe (15) is used to discharge gas. One end of the manifold (16) is connected to the first connecting seat (11) through a thread, and the other end of the manifold (16) is connected to the four-way valve (18) through a thread. The four-way valve (18) is connected to the blowout preventer (17) through a thread, and the four-way valve (18) is fixedly connected to the pressure gauge (19).
2. A pressure-testing drilling blowout prevention transition device according to claim 1, characterized in that: The four-way valve (18) comprises a four-way body (181), a first port (182), a second port (183), a third port (184), a fourth port (185), a first gate valve (186) and a second gate valve (187). The four-way body (181) is fixedly connected to the first port (182), the second port (183), the third port (184) and the fourth port (185), respectively. The first port (182) is fixedly connected to the pressure gauge (19), and the pressure gauge (19) is used to measure the pressure of gas. The second port (183) is connected to the anti-blowout pipe (17) through a thread. The first gate valve (186) is provided on the third port (184), and the second gate valve (187) is provided on the fourth port (185).
3. A pressure-testing drilling blowout prevention transition device according to claim 2, characterized in that: The third port (184) and the fourth port (185) are adapted to the ports of the lubricator (17), and the third port (184) is connected to the lubricator (17) via threads.
4. A pressure-testing drilling blowout prevention transition device according to claim 3, characterized in that: The water outlet assembly comprises a first water outlet pipe (13) and a second water outlet pipe (14), wherein the first water outlet pipe (13) and the second water outlet pipe (14) are both fixedly connected to the side wall of the separation box (10), and the first water outlet pipe (13) and the second water outlet pipe (14) penetrate the side wall of the separation box (10) and extend to the interior of the separation box (10).
5. A pressure-testing drilling blowout prevention transition device according to claim 4, characterized in that: The second water outlet pipe (14) is located above the first water outlet pipe (13), and the height of the second water outlet pipe (14) is 1 / 2 of the height of the separation box (10).
6. A pressure-testing drilling blowout prevention transition device according to claim 5, characterized in that: The ports of the manifold (16) are compatible with both the first connecting seat (11) and the second connecting seat (12).
7. A pressure-testing drilling blowout prevention transition device according to claim 6, characterized in that: The outer sides of the manifold (16) and the blowout preventer (17) are both wrapped with a spring-shaped metal protective layer.
8. The pressure-testing drilling blowout prevention transition device according to claim 7, characterized in that: The first water outlet pipe (13) is located at the bottom of the side wall of the separation box (10).
9. The pressure-testing drilling blowout prevention transition device according to claim 8, characterized in that: A baffle is fixedly connected to the interior of the separation box (10), one end of the baffle is fixedly connected to the lower bottom surface of the separation box (10), the air outlet pipe (15) is located on one side of the baffle, and the first connecting seat (11) and the second connecting seat (12) are located on the other side of the baffle.
10. A pressure-testing drilling blowout prevention transition device according to claim 9, characterized in that: The height of the baffle is less than 1 / 3 of the height of the separation box (10).