Automatic water discharging device

Abstract

The utility model provides an automatic water discharging device which is installed on a coal mine gas extraction pipe for use and comprises a box body, a water collecting pipe and a water discharging valve. The water collecting pipe is connected with the bottom of the extraction pipe and the upper portion of the box body, and a water outlet is formed in the bottom of the box body. The drainage valve comprises a floating ball, a sealing cover, a guide rod and a chain. The sealing cover is used for sealing the drainage port. The guide rod is fixed to the lower side of the sealing cover and slidably arranged in the guide hole, the chain is connected with the upper side of the sealing cover and the floating ball, and the floating ball is arranged in the box body. The gas drainage device is simple in structure, reliable in work and capable of effectively improving the working stability and efficiency of a gas drainage system.

Description

Technical Field

[0001] The utility model relates to a water discharger, in particular to an automatic water discharger for a coal mine gas extraction pipe. Background Art

[0002] In the coal mining process, gas extraction is an essential part. However, a large amount of water often accumulates in the gas extraction pipe, so it is necessary to install a water drainer on the extraction pipe to drain the accumulated water.

[0003] Most of the existing water dischargers use manual water discharge, which requires full-time personnel to operate at the water discharge point regularly. This method is not only labor-consuming and time-consuming, but also often leads to blockage of the extraction pipe due to untimely water discharge, which seriously affects the normal operation of the gas extraction system.

[0004] Due to the presence of a large amount of accumulated water and sediment in coal mine gas extraction pipelines, pipeline blockage has become a common problem. This blockage will lead to an increase in the negative pressure of the extraction system and an increase in the load of the extraction pump, which will greatly reduce the gas extraction efficiency and pose a serious threat to production safety.

[0005] Accumulated water and sediment not only affect the normal operation of the system, but may also cause safety hazards such as gas explosions, increasing the danger of mine operations.

[0006] Although some automatic water release devices have been developed on the market, these devices can automatically release water through multiple valve controls. However, this design leads to many failure points, making the working stability of the water release device low. The failure of the automatic water release device will cause the system operation to be interrupted, thus affecting the efficiency and safety of the entire gas extraction system. Utility Model Content

[0007] In order to solve the problems existing in the above-mentioned prior art, the utility model provides an automatic water discharger which is installed on a coal mine gas extraction pipe for use and comprises a box body, a water collecting pipe and a drainage valve.

[0008] The water collecting pipe connects the bottom of the extraction pipe and the upper part of the box body. The bottom of the box body is provided with a drain port, and a guide hole is provided at the drain port. The drain valve includes a float, a sealing cover, a guide rod and a chain. The sealing cover is used to close the drain port. The guide rod is fixed to the lower side of the sealing cover and can be slidably arranged in the guide hole. The chain connects the upper side of the sealing cover and the float, and the float is arranged in the box body.

[0009] When the water at the bottom of the extraction pipe flows through the water collecting pipe, it flows along the water collecting pipe to the box and accumulates in the box. When the accumulated water reaches a certain amount, the float is affected by the accumulated water and floats up, and the sealing cover is driven up by the chain, thereby opening the drain port and draining the accumulated water. When the accumulated water is drained to a certain extent, the float drops, and the sealing cover falls to its original position through the cooperation of the guide hole and the guide rod, thereby closing the drain port and preventing air leakage in the extraction pipe.

[0010] Furthermore, it also includes a partition, which is arranged in the box body and arranged at the lower side of the box body connected to the water collecting pipe. A water inlet valve is arranged on the partition, and water can be collected on the partition. When the gravity of the water exceeds the force of the water inlet valve, the water inlet valve can be opened. When there is no water on the partition, the upper and lower parts of the box body are separated under the action of negative pressure and the force of the water inlet valve itself, further preventing leakage of the extraction pipe.

[0011] Furthermore, the middle part of the partition is a water collecting part, which is recessed toward the bottom of the box body, and the water inlet valve is arranged in the water collecting part to facilitate water accumulation.

[0012] Furthermore, it also includes a connecting pipe, which connects the upper part of the box body and the top of the extraction pipe to ensure the pressure balance inside the box body so that the water in the extraction pipe can smoothly enter the box body.

[0013] Furthermore, the box body also includes a box cover, which is arranged on the top of the box body to facilitate maintenance of the automatic water discharger.

[0014] Furthermore, the drain valve further comprises a limit plate, which is connected to the lower end of the guide rod and arranged outside the guide hole. The cross section of the limit plate is larger than the cross section of the inner contour of the guide hole, so that the drain valve will not fall out accidentally.

[0015] Furthermore, an external thread is provided at the lower end of the guide rod, and a matching internal thread is provided on the limit plate, and the limit plate is connected to the guide rod via threads.

[0016] Furthermore, a sealing sheet is provided on the lower end surface of the sealing cover to enhance the sealing effect.

[0017] Furthermore, the water collecting pipe is provided with a first valve for easy use.

[0018] Furthermore, a second valve is provided on the connecting pipe for easy use.

[0019] The utility model has a simple structure and reliable operation, and can effectively improve the working stability and efficiency of the gas extraction system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the automatic water discharger of the utility model when no water is collected;

[0022] Figure 2 It is a schematic diagram of the sealing cover and the guide rod in the utility model;

[0023] Figure 3 It is a schematic diagram of the automatic water discharger of the utility model when draining water;

[0024] In the figure: 1. box body; 2. water collecting pipe; 3. drain valve; 4. drain outlet; 5. guide hole; 6. float; 7. sealing cover; 8. guide rod; 9. chain; 10. partition; 11. water inlet valve; 12. water collecting part; 13. connecting pipe; 14. second valve; 15. limit plate; 16. box cover; 17. sealing sheet; 18. first valve; 19. extraction pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1 As shown, the automatic drainer of this embodiment includes a box body 1, a water collecting pipe 2 and a drain valve 3.

[0027] The water collecting pipe 2 connects the bottom of the extraction pipe 19 and the upper part of the box body 1. The bottom of the box body 1 is provided with a drain port 4, and a guide hole 5 is provided at the drain port 4. The drain valve 3 includes a float 6, a sealing cover 7, a guide rod 8 and a chain 9. The sealing cover 7 is used to close the drain port 4. The guide rod 8 is fixed to the lower side of the sealing cover 7 and can be slidably arranged in the guide hole 5. The chain 9 connects the upper side of the sealing cover 7 and the float 6, and the float 6 is arranged in the box body 1.

[0028] Preferably, the present embodiment further includes a partition 10, which is disposed in the housing 1 and disposed on the lower side of the housing 1 connected to the water collecting pipe 2. A water inlet valve 11 is disposed on the partition 10, and water can be collected on the partition 10. When the gravity of the water exceeds the force of the water inlet valve 11, the water inlet valve 11 can be opened. When there is no water on the partition 10, the upper and lower parts of the housing 1 are separated under the action of negative pressure and the force of the water inlet valve 11 itself, further preventing air leakage from the extraction tube 19. Further preferably, the middle part of the partition 10 is a water collecting part 12, and the water collecting part 12 is recessed toward the bottom of the housing 1, and the water inlet valve 11 is disposed in the water collecting part 12 to facilitate water accumulation.

[0029] This embodiment also includes a connecting pipe 13, which connects the upper part of the box body 1 and the top of the extraction pipe 19 to ensure the pressure balance inside the box body 1, and the water in the extraction pipe 19 can smoothly enter the box body 1. The connecting pipe 13 is also provided with a second valve 14 for easy use. For the solution with the partition 10, the connection position of the connecting pipe 13 on the box body 1 should be on the upper side of the partition 10.

[0030] The drain valve 3 of this embodiment further includes a limit plate 15, which is connected to the lower end of the guide rod 8 and is arranged outside the guide hole 5. The cross section of the limit plate 15 is larger than the cross section of the inner contour of the guide hole 5, so that the drain valve 3 will not fall out accidentally. The lower end of the guide rod 8 is provided with an external thread, and the limit plate 15 is provided with an adapted internal thread, and the limit plate 15 is connected to the guide rod 8 through threads.

[0031] The box body 1 of this embodiment further includes a box cover 16, which is arranged on the top of the box body 1 to facilitate maintenance of the automatic water discharger. Figure 2 As shown, the lower end surface of the sealing cover 7 of this embodiment is provided with a sealing sheet 17 to enhance the sealing effect. The water collecting pipe 2 of this embodiment is provided with a first valve 18 for easy use.

[0032] like Figure 3 As shown, when the water at the bottom of the extraction pipe 19 flows through the water collecting pipe 2, it flows along the water collecting pipe 2 to the partition 10 in the box 1. When a certain amount of water is accumulated, the water inlet valve 11 opens, so that the water accumulates in the box 1. When the accumulated water reaches a certain amount, the float 6 floats up under the influence of the accumulated water, and drives the sealing cover 7 to float up through the chain 9, thereby opening the drain port 4 and draining the accumulated water. When the accumulated water is discharged to a certain extent, the float 6 drops, and through the cooperation of the guide hole 5 and the guide rod 8, the sealing cover 7 falls to the original position, thereby closing the drain port 4 and preventing the extraction pipe 19 from leaking.

[0033] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An automatic water discharger installed on a coal mine gas extraction pipe, characterized in that: It includes a box body, a water collecting pipe and a drain valve; the water collecting pipe connects the bottom of the extraction pipe and the upper part of the box body, a drain outlet is provided at the bottom of the box body, and a guide hole is provided at the drain outlet; the drain valve includes a float, a sealing cover, a guide rod and a chain, and the sealing cover is used to close the drain outlet; the guide rod is fixed on the lower side of the sealing cover and can be slidably set in the guide hole; the chain connects the upper side of the sealing cover and the float, and the float is set in the box body.

2. The automatic water discharger according to claim 1, characterized in that: It also includes a partition, which is arranged in the box body and at the lower side of the box body connected to the water collecting pipe; a water inlet valve is arranged on the partition.

3. The automatic water discharger according to claim 2, characterized in that: The middle part of the partition is a water collecting part, which is concave toward the bottom of the box body, and the water inlet valve is arranged on the water collecting part.

4. The automatic water discharger according to claim 1, characterized in that: It also includes a connecting pipe, which connects the upper part of the box body and the top of the extraction pipe.

5. The automatic water discharger according to claim 1, characterized in that: The box body also includes a box cover, which is arranged on the top of the box body.

6. The automatic water discharger according to claim 1, characterized in that: The drain valve also includes a limit plate, which is connected to the lower end of the guide rod and is arranged outside the guide hole; the cross section of the limit plate is larger than the cross section of the inner contour of the guide hole.

7. The automatic water discharger according to claim 6, characterized in that: The lower end of the guide rod is provided with an external thread, the limiting plate is provided with an adapted internal thread, and the limiting plate is connected to the guide rod through the thread.

8. The automatic water discharger according to claim 1, characterized in that: A sealing sheet is arranged on the lower end surface of the sealing cover.

9. The automatic water discharger according to claim 1, characterized in that: The water collecting pipe is provided with a first valve.

10. The automatic water discharger according to claim 4, characterized in that: The connecting pipe is provided with a second valve.

Images