Single-hole automatic water drainage and rapid leakage detection integrated device for drilling

Abstract

The utility model relates to mining field, concretely is a single hole automatic water release and fast integrated device of checking drilling air leakage, including cross -shaped four -way pipe, four edges of four -way pipe are equipped with air -exhausting chamber, slag -removing water -flushing chamber, exhaust chamber and water storage chamber, in the utility model, the length of water release pipe can be increased or decreased according to the drilling water yield, and water storage and discharge are facilitated, the one-way valve is easy to switch, and water accumulation and water release are facilitated, the head can be detached, and according to the flexible installation and use of device slag accumulation condition and drilling parameter change condition, coal slag is removed or drilling air leakage condition is checked, drilling drainage and drilling air leakage checking are carried out simultaneously, can be recycled with abandoned pipeline production, is easy to process, and the manufacturing process is simple, and the cost is low, and the operability is strong, and the slag -removing head is flexibly installed and is easy to maintain, can be installed and detached according to the actual condition of on -the -spot drilling slag accumulation, and is flexibly applied.

Description

Technical Field

[0001] This utility model relates to the mining field, specifically to an integrated device for automatic single-hole water release and rapid inspection of borehole air leakage. Background Technology

[0002] In the process of coal mine outburst prevention and gas control, in-seam drilling and cross-seam drilling are commonly used methods. After the drainage borehole is constructed, steps such as sealing, continuous drainage, and parameter measurement are required. The drainage pipe inside the borehole needs to be connected to the main drainage pipeline to form a negative pressure drainage system. In the management of drainage boreholes, post-maintenance such as parameter measurement, automatic slag removal and water drainage, and borehole leakage repair are required. However, many problems exist in actual operation: On the one hand, the automatic water release float device of some borehole water release devices is damaged or the water storage container of the water release device has a small capacity, which causes the water in the borehole to be unable to be discharged normally, resulting in the failure of the automatic water release function. This makes it impossible to test the borehole extraction parameters normally, which greatly reduces the extraction efficiency and may even lead to the scrapping of the borehole, affecting the overall gas control effect of the mining face. On the other hand, the daily measurement data of the extraction boreholes show that the gas concentration and flow rate of some boreholes are decreasing too quickly and the flow rate is increasing, making it difficult to determine in a short time whether the reduction in extraction efficiency is due to gas leakage.

[0003] Existing devices for detecting borehole leaks are often bulky, require long-term monitoring, have low detection efficiency, and are costly to maintain manually, making them difficult to promote and apply. Current solutions mainly include: disassembling the borehole branch pipe or automatic water release device for manual or automatic water release; long-term parameter monitoring of the borehole to calculate the decay period and determine the cause of the leak; or purchasing automatic water release devices and automatic monitoring instruments separately to achieve single-hole water release and leak detection. However, the above solutions generally suffer from problems such as complex operation, large workload, expensive equipment, large size, and easy damage, making it difficult to achieve integrated and simultaneous single-hole automatic water release and leak detection. This results in difficulty in effectively improving gas extraction efficiency and the safety factor of subsequent management. Therefore, we propose an integrated device for single-hole automatic water release and rapid borehole leak detection. Utility Model Content

[0004] The purpose of this invention is to provide an integrated device for automatic single-hole water drainage and rapid borehole air leakage inspection, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, a device integrating automatic single-hole water discharge and rapid borehole air leakage inspection includes a cross-shaped four-way pipe, wherein the four sides of the four-way pipe are respectively provided with an air extraction chamber, a slag removal and flushing chamber, an exhaust chamber and a water storage chamber. An extraction chamber, one end of which is connected to an extraction borehole; A slag removal and flushing chamber, one end of which is connected to a main extraction pipeline; An exhaust chamber is located above the air extraction chamber and the slag removal flushing chamber, and a switch is installed on the top of the switch. A variable head is provided on the top of the switch. A water storage chamber is located below the air extraction chamber and the slag removal flushing chamber and is used to store and discharge accumulated water. A skeleton hose is fixedly installed at the lower end of the water storage chamber, and a one-way valve is provided at the end of the skeleton hose.

[0006] Furthermore: the transformer head is detachably installed on the top of the switch; the transformer head can be optionally connected to a water rope to flush away the coal slag accumulated in the four-way pipe; the transformer head can also be optionally connected to a borehole leakage inspection device.

[0007] Furthermore, the length of the skeleton hose is matched to the amount of water accumulation.

[0008] Furthermore, each of the suction chamber and the exhaust chamber is provided with a pressure balance hole at one end, and the two pressure balance holes are connected by a flexible hose.

[0009] Furthermore, one end of the extraction chamber is provided with a parameter measuring hole, which is used to measure the borehole negative pressure and gas concentration.

[0010] Furthermore: the four-way pipe is made of seamless steel pipe or PE pipe, and the diameter of the four-way pipe is adapted to the diameter of the extraction pipe in the borehole.

[0011] Furthermore, the upper end of the transformer head is equipped with a positive pressure gauge and an air inlet, which are used to determine whether the borehole is leaking air.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, the length of the water pipe can be increased or decreased according to the amount of water produced from the borehole, which facilitates water storage and discharge.

[0013] 2. The one-way valve is easy to open and close, facilitating water accumulation and drainage.

[0014] 3. The variable head is detachable and can be flexibly installed and used according to the slag accumulation and drilling parameters of the device to remove coal slag or check for air leakage in the borehole, so as to realize the simultaneous drainage of the borehole and the inspection of air leakage in the borehole. 4. It can be made from recycled waste pipes, is easy to process, has a simple manufacturing process, low cost, and is highly operable.

[0015] 5. The slag removal head is flexible to install and easy to maintain. It can be installed and disassembled according to the actual conditions of the slag accumulation in the borehole. It can be applied flexibly. The switch can prevent gas leakage in the borehole during the process of severely slag accumulation treatment and form a sealed space when checking for gas leakage in the borehole.

[0016] 6. It is simple and convenient to use, safe and reliable. After installation, it can realize real-time automatic drainage and slag removal and drilling to check for air leakage simultaneously. The installation and operation steps of the device are independent of each other and do not affect each other, solving the problem of multiple disassembly and installation of the device. Moreover, the inspection speed is fast, improving the extraction efficiency and safety factor, and reducing the labor intensity of employees in maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an integrated device for automatic single-hole water discharge and rapid inspection of borehole air leakage according to the present invention.

[0018] In the diagram: 1. Four-way pipe; 2. Air extraction chamber; 3. Slag removal and flushing chamber; 4. Exhaust chamber; 5. Water storage chamber; 6. Switch; 7. Variable head; 8. Frame hose; 9. One-way valve; 10. Air pressure balance hole; 11. Parameter measuring hole; 12. Positive pressure gauge; 13. Air inlet. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 The figure shows a preferred embodiment of the present invention, an integrated device for automatic single-hole water discharge and rapid inspection of borehole air leakage, including a cross-shaped four-way pipe 1, wherein the four sides of the four-way pipe 1 are respectively provided with an air extraction chamber 2, a slag removal and flushing chamber 3, an exhaust chamber 4 and a water storage chamber 5. The air extraction chamber 2 is connected to an extraction borehole at one end. The slag removal and flushing chamber 3 is connected to a main extraction pipeline at one end, and a switch 6 is installed at one end of the slag removal and flushing chamber 3. Exhaust chamber 4, which is located above the air extraction chamber 2 and the slag removal flushing chamber 3 and has a switch 6 installed on its top, and the top of the switch 6 is provided with a variable head 7; The water storage chamber 5 is located below the air extraction chamber 2 and the slag removal flushing chamber 3 and is used to store and discharge accumulated water. A skeleton hose 8 is fixedly installed at the lower end of the water storage chamber 5, and a one-way valve 9 is provided at the end of the skeleton hose 8.

[0021] The transformer head 7 is detachably installed on the top of the switch 6. The transformer head 7 can be connected to a water rope to flush the coal slag accumulated in the four-way pipe 1. The transformer head 7 can also be connected to a borehole leakage detection device to realize the simultaneous operation of automatic water discharge and leakage detection in a single hole.

[0022] The length of the skeleton hose 8 is matched with the amount of water accumulated. The water outlet end of the hose can be fixed next to the drainage ditch in the tunnel. The accumulated sludge and water are discharged under the action of gravity by opening the one-way valve 9. After discharge, the one-way valve 9 automatically closes to prevent air leakage.

[0023] Specifically, one end of the suction chamber 2 and the exhaust chamber 4 is provided with a pressure balance hole 10. The two pressure balance holes 10 are connected by a hose to balance the air pressure during the sludge and water accumulation stage and the sludge and water discharge stage of the device, so as to prevent the accumulated sludge and water from not being discharged or the one-way valve 9 from not closing due to negative pressure after the sludge and water is discharged, thus preventing air leakage.

[0024] It should be added that one end of the air extraction chamber 2 is provided with a parameter measuring hole 11, which is used to measure the borehole negative pressure and gas concentration. The upper end of the transformer head 7 is provided with a positive pressure gauge 12 and an air inlet 13, which are used to determine whether the borehole is leaking. If the concentration decreases, the flow rate can be measured by a flow meter installed in a group of boreholes. If the concentration and the pure flow rate decrease simultaneously and the decrease is large, a borehole leak detection device can be connected to the exhaust chamber 4. The switch of the slag removal flushing chamber 3 is closed, the switch of the exhaust chamber 4 is opened, positive pressure gas is injected into the air inlet, and a certain pressure is read on the positive pressure gauge. After stabilization, the positive pressure gauge reading is observed. If the positive pressure gauge reading decreases rapidly in a short time (within 5 minutes), it is determined that the borehole is leaking, and the next step of borehole repair can be carried out.

[0025] The four-way pipe 1 is made of seamless steel pipe or PE pipe, and the diameter of the four-way pipe 1 is adapted to the diameter of the extraction pipe in the borehole.

[0026] In this embodiment, during normal extraction, the device opens the switch connecting the slag removal flushing chamber 3 to the main extraction pipeline to maintain negative pressure for gas extraction. The negative pressure and gas concentration of the borehole are periodically measured through the parameter measuring hole 11 on the extraction chamber 2 to determine the extraction effect. When the water or slag in the borehole reaches a certain height in the water storage chamber 5, the liquid in the skeleton hose 8 opens the one-way valve 9 under the action of gravity, and the accumulated slag is automatically discharged into the drainage ditch. After the slag is discharged, the one-way valve 9 automatically closes to prevent air leakage in the negative pressure system. When slag flushing is required, the variable head 7 can be selectively connected to a water rope to flush the coal slag accumulated in the four-way pipe 1; During borehole leak detection, the positive pressure gauge 12 and the air inlet 13 are used to determine whether the borehole is leaking. If the concentration decreases, the flow rate can be measured by the flow meter installed in the group of boreholes. If the concentration and pure flow rate decrease simultaneously and the decrease is large, a borehole leak detection device can be connected to the exhaust chamber 4. The switch of the slag removal flushing chamber 3 is closed, the switch of the exhaust chamber 4 is opened, positive pressure gas is injected into the air inlet, and a certain pressure is read on the positive pressure gauge. After stabilization, the positive pressure gauge reading is observed. If the positive pressure gauge reading decreases rapidly in a short time (within 5 minutes), it is determined that the borehole is leaking, and the next step of borehole repair can be carried out.

[0027] Finally, it should be noted that, in order to facilitate a clear demonstration and understanding of the structure of this invention, the accompanying drawings are not drawn strictly according to the actual scale. The drawings may contain enlarged, reduced, or distorted representations of specific components, spacing, or angles. Those skilled in the art should understand that, in actual production or manufacturing, the dimensions, tolerances, and proportional relationships described in this text shall prevail. In the description of this utility model, it should be noted that the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A device integrating automatic single-hole water discharge and rapid borehole air leakage inspection, characterized in that, It includes a cross-shaped four-way pipe (1), and the four sides of the four-way pipe (1) are respectively provided with an air extraction chamber (2), a slag removal flushing chamber (3), an exhaust chamber (4) and a water storage chamber (5); The air extraction chamber (2) is connected to an extraction borehole at one end; The slag removal and flushing chamber (3) is connected to the main extraction pipeline at one end. The exhaust chamber (4) is located above the air extraction chamber (2) and the slag removal flushing chamber (3) and a switch (6) is installed on the top. The top of the switch (6) is provided with a variable head (7). The water storage chamber (5) is located below the air extraction chamber (2) and the slag removal flushing chamber (3) and is used to store and discharge accumulated water. A skeleton hose (8) is fixedly installed at the lower end of the water storage chamber (5), and a one-way valve (9) is provided at the end of the skeleton hose (8).

2. The integrated device for automatic single-hole water drainage and rapid borehole air leakage inspection according to claim 1, characterized in that: The transformer (7) is detachably installed on the top of the switch (6). The transformer (7) can be connected to a water rope to flush the coal slag accumulated in the four-way pipe (1). The transformer (7) can also be connected to a borehole leakage inspection device.

3. The integrated device for automatic single-hole water drainage and rapid borehole air leakage inspection according to claim 1, characterized in that: The length of the skeleton hose (8) is matched to the amount of water accumulation.

4. The integrated device for automatic single-hole water drainage and rapid borehole air leakage inspection according to claim 1, characterized in that: One end of the air extraction chamber (2) and the air exhaust chamber (4) is provided with an air pressure balance hole (10), and the two air pressure balance holes (10) are connected by a hose.

5. The integrated device for automatic single-hole water drainage and rapid borehole air leakage inspection according to claim 1, characterized in that: One end of the air extraction chamber (2) is provided with a parameter measuring hole (11), which is used to measure the borehole negative pressure and gas concentration.

6. The integrated device for automatic single-hole water drainage and rapid borehole air leakage inspection according to claim 1, characterized in that: The four-way pipe (1) is made of seamless steel pipe or PE pipe, and the diameter of the four-way pipe (1) is adapted to the diameter of the extraction pipe in the borehole.

7. The integrated device for automatic single-hole water drainage and rapid borehole air leakage inspection according to claim 1, characterized in that: The upper end of the transformer (7) is equipped with a positive pressure gauge (12) and an air inlet (13), which are used to determine whether the borehole is leaking air.

Images