Unpowered negative-pressure automatic water discharging device

Abstract

The utility model provides an unpowered negative pressure automatic water discharging device which comprises a barrel body and a barrel cover installed at the upper end of the barrel body, a water inlet pipe is arranged on one side of the barrel body, the water inlet pipe is located in the barrel body and provided with a water inlet valve so that the water inlet pipe can be connected with an extraction pipeline through the water inlet pipe, and a two-position four-way valve is installed on the barrel cover. The two-position four-way valve comprises a valve body and a valve rod arranged in the valve body in a sliding mode, the upper end of the valve body is sleeved with a connecting cylinder, and an air filter is installed through the connecting cylinder. According to the device, the air filter is installed outside the two-position four-way valve, air guided into the valve body can be filtered, so that impurities entering the valve body are reduced, the situation that the air tightness is reduced due to the fact that the impurities enter the valve body is relieved, the service life of the two-position four-way valve is prolonged, and the stability of the two-position four-way valve is improved. The permanent magnet part is arranged in the two-position four-way valve, the stability of opening and closing actions of the two-position four-way valve can be improved through matched arrangement of the first permanent magnet and the second permanent magnet, and action failure caused by instability of the valve rod is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of underground gas extraction negative pressure pipeline drainage, in particular to a kind of automatic water drainer of unpowered negative pressure. BACKGROUND

[0002] Water drainer is indispensable water drainage device of coal mine gas extraction system, but existing negative pressure water drainer has the following problems: valve air tightness difference long time use will leak, the opening and closing function of valve is invalid, valve core is easily blocked by coal dust and leads to action failure;The water discharged is directly discharged to roadway, which causes poor on-site environment. UTILITY MODEL CONTENTS

[0003] The technical problem solved by the utility model is to provide an automatic water drainer of unpowered negative pressure to solve the problems raised in the above background.

[0004] The technical problem solved by the utility model is realized by the following technical scheme: the automatic water drainer of unpowered negative pressure includes a barrel body and a barrel cover installed on the upper end of the barrel body, the barrel body is provided with a water inlet pipe on one side, the water inlet pipe is provided with a water inlet valve inside the barrel body, the water inlet pipe is connected to the extraction pipeline, a two-position four-way valve is installed on the barrel cover, the two-position four-way valve includes a valve body and a valve rod slidingly arranged in the valve body, a connecting cylinder is sleeved on the upper end of the valve body, and an air filter is installed on the connecting cylinder to improve the cleanliness of the introduced air, a guide rod is connected to the outer end of the valve rod, and the guide rod is connected to a floating ball inside the barrel body to control the channel switching in the valve body through the floating ball, a permanent magnet is arranged in the valve body to improve the stability of the valve rod, the barrel body is installed in a drainage tank, a water outlet pipe is arranged on one side of the lower end of the barrel body, and a water outlet valve is installed on the outer side of the water outlet pipe to guide the accumulated water into the drainage tank.

[0005] As a further scheme of the utility model:

[0006] The two-position four-way valve is connected to the extraction pipeline through a balanced negative pressure air pipe to maintain a negative pressure state in the barrel body when the water storage state is maintained.

[0007] As a further scheme of the utility model:

[0008] The valve body includes a valve seat, a guide sleeve installed on one side of the valve seat, and a magnetic cap installed on the outer end of the guide sleeve, air holes are respectively formed in the valve seat and connected to the balanced negative pressure air pipe and the barrel body, air inlets are also formed on both sides of the magnetic cap, the guide sleeve is fixedly connected to the connecting cylinder to embed the magnetic cap in the connecting cylinder, the air filter is installed on the side of the connecting cylinder away from the valve body, one end of the air filter is inserted into the inner cavity of the connecting cylinder and fixedly connected to the connecting cylinder to filter the external gas introduced into the air inlet of the valve body.

[0009] As a further scheme of the utility model:

[0010] The permanent magnet comprises a first permanent magnet installed in the inner cavity of the magnetic cap and a second permanent magnet installed on one side of the valve rod, the second permanent magnet is inlaidly installed in the cone on one side of the valve rod, and one side of the guide sleeve is also provided with a sealing ring matched with the cone to switch the channel along with the movement of the cone.

[0011] When the float ball rises and drives the valve rod to rise through the guide rod, the second permanent magnet is attracted and locked with the first permanent magnet, the balanced negative pressure air pipe is closed, the external atmospheric pressure enters the barrel, the water inlet valve closes the water inlet pipe, the barrel pressure is normal, the accumulated water is discharged into the drain tank through the water outlet valve, the buoyancy of the float ball is reduced, the second permanent magnet is separated from the first permanent magnet under the influence of gravity, the cone cooperates with the sealing ring to close the external air inlet channel, the balanced negative pressure air pipe is opened, the barrel maintains negative pressure, and the water outlet valve is closed.

[0012] As a further scheme of the utility model:

[0013] The barrel cover is fixedly connected with the barrel through buckles and forms a sealed structure, and a plurality of buckles are arranged along the annular distribution of the barrel cover and the barrel.

[0014] As a further scheme of the utility model:

[0015] The float ball is further provided with a counterweight for increasing weight, so as to adjust the weight of the float ball according to requirements.

[0016] As a further scheme of the utility model:

[0017] One side of the drain tank is provided with a drain pipe, and an external pipeline is connected through the drain pipe, so as to discharge the accumulated water into a ditch.

[0018] As a further scheme of the utility model:

[0019] The water inlet valve and the water outlet valve are one-way valve structures.

[0020] As a further scheme of the utility model:

[0021] The filter element in the air filter adopts a nanometer filter element.

[0022] Compared with the prior art, the device has the beneficial effects that: the air filter is installed outside the two-position four-way valve, the air introduced into the valve body can be filtered, impurities entering the valve body are reduced, the air tightness caused by the impurities entering the valve body is reduced, and the service life and stability of the two-position four-way valve are improved. The two-position four-way valve is provided with permanent magnets, the stability of the opening and closing action of the two-position four-way valve can be improved through the cooperation of the first permanent magnet and the second permanent magnet, and the action failure caused by the unstable valve rod is avoided. The barrel body is installed in the drain groove, the accumulated water can be collected through the drain groove, and the accumulated water is discharged into the ditch through the drain pipe connected with the external pipeline, so that the on-site environment is prevented from being damaged by the accumulated water. The device has compact structure, is convenient to install and use underground, saves installation cost, has high reliability, reduces the failure rate, is sensitive in action, is easy to maintain, reduces the maintenance cost, and prolongs the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 It is a structural schematic view of the utility model;

[0024] Fig. 2 It is an internal structure schematic view of the utility model;

[0025] Fig. 3 It is an air filter installation structure schematic view of the utility model;

[0026] Fig. 4 It is a two-position four-way valve internal structure schematic view of the utility model;

[0027] Identified in the figure: 1, barrel body; 2, barrel cover; 3, two-position four-way valve; 4, connecting cylinder; 5, air filter; 6, floating ball; 7, drain groove; 8, buckle; 11, water inlet pipe; 12, water inlet valve; 13, water outlet pipe; 14, water outlet valve; 30, sealing ring; 31, valve body; 32, valve rod; 33, guide rod; 34, balance negative pressure air pipe; 35, valve seat; 36, guide sleeve; 37, magnetic cap; 38, first permanent magnet; 39, second permanent magnet; 61, counterweight; 71, drain pipe; 321, cone. DETAILED DESCRIPTION

[0028] In order to make the implementation technical means, creation characteristics, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0029] As Figs. 1-4 shown,

[0030] The embodiment provides a non-powered negative pressure automatic water drainer, which comprises a barrel body 1, a barrel cover 2 installed on the upper end of the barrel body 1, a water inlet pipe 11 arranged on one side of the barrel body 1, a water inlet valve 12 arranged in the barrel body 1 and connected with the water inlet pipe 11, a two-position four-way valve 3 installed on the barrel cover 2, a connecting cylinder 4 arranged on the upper end of the valve body 31, an air filter 5 installed on the connecting cylinder 4, a guide rod 33 connected with the outer end of the valve rod 32 and connected with a floating ball 6 in the barrel body 1, a magnetic member arranged in the valve body 31 to improve the stability of the valve rod 32, and a drain groove 7 in which the barrel body 1 is arranged, a water outlet pipe 13 arranged on one side of the lower end of the barrel body 1 and a water outlet valve 14 installed on the outer side of the water outlet pipe 13 to guide the accumulated water into the drain groove 7.

[0031] In the embodiment, the two-position four-way valve 3 is connected with a balanced negative pressure air pipe 34, and the balanced negative pressure air pipe 34 is connected with a pumping pipe, so that the barrel body 1 is kept in a negative pressure state when the water is accumulated.

[0032] The valve body 31 comprises a valve seat 35, a guide sleeve 36 installed on one side of the valve seat 35 and a magnetic cap 37 installed on the outer end of the guide sleeve 36, air holes are respectively arranged on the valve seat 35 and connected with the balanced negative pressure air pipe 34 and the barrel body 1, air inlets are arranged on the two sides of the magnetic cap 37, the guide sleeve 36 is fixedly connected with the connecting cylinder 4, so that the magnetic cap 37 is arranged in the connecting cylinder 4, the air filter 5 is installed on the side, away from the valve body 31, of the connecting cylinder 4, one end of the air filter 5 is inserted into the inner cavity of the connecting cylinder 4 and is fixedly connected with the connecting cylinder 4, so as to filter the air introduced into the air inlet of the valve body 31.

[0033] In the embodiment, the magnetic member comprises a first permanent magnet 38 arranged in the inner cavity of the magnetic cap 37 and a second permanent magnet 39 arranged on one side of the valve rod 32, the second permanent magnet 39 is inlaidly arranged in a cone body 321 on one side of the valve rod 32, and a sealing ring 30 is arranged on one side of the guide sleeve 36 and matched with the cone body 321, so as to switch the channel along with the movement of the cone body 321.

[0034] When the floating ball 6 rises and drives the valve rod 32 to rise through the guide rod 33, the second permanent magnet 39 is attracted and locked with the first permanent magnet 38, the balanced negative pressure air pipe 34 is closed, the external atmospheric pressure enters the barrel body 1, the water inlet valve 12 closes the water inlet pipe 11, the air pressure of the barrel body 1 is normal, the accumulated water is discharged to the drain groove 7 through the water outlet valve 14, the buoyancy on the floating ball 6 decreases along with the decrease of the accumulated water, the second permanent magnet 39 is separated from the first permanent magnet under the influence of gravity, the cone body 321 is matched with the sealing ring 30 to close the external air inlet channel, the balanced negative pressure air pipe 34 is opened, the barrel body 1 is kept in a negative pressure state, and the water outlet valve 14 is closed.

[0035] In this embodiment, the bucket cover 2 is fixedly connected with the bucket body 1 through the buckles 8, and a sealing structure is formed. The buckles 8 are arranged in a plurality of annular distribution along the bucket cover 2 and the bucket body 1.

[0036] In this embodiment, the floating ball 6 is further provided with a counterweight 61 for weight increase, so as to adjust the weight of the floating ball 6 according to the requirement.

[0037] In this embodiment, the drainage groove 7 is provided with a drainage pipe 71 on one side, and is connected with an external pipeline through the drainage pipe 71, so as to drain the accumulated water into a ditch.

[0038] In this embodiment, the water inlet valve 12 and the water outlet valve 14 are one-way valve structures.

[0039] In this embodiment, the filter element in the air filter 5 is a nanometer filter element.

[0040] Specifically, the device is provided with an air filter 5 outside the two-position four-way valve 3, which can filter the air introduced into the valve body 31, so as to reduce the impurities entering the valve body 31, slow down the decrease of air tightness caused by the impurities entering the valve body 31, and improve the service life and stability of the two-position four-way valve 3. The two-position four-way valve 3 is provided with a permanent magnet, and the cooperation of the first permanent magnet 38 and the second permanent magnet 39 can improve the stability of the opening and closing action of the two-position four-way valve 3, and avoid the malfunction caused by the instability of the valve rod 32. The bucket body 1 is installed in the drainage groove 7, which can collect the drained accumulated water through the drainage groove 7, and is connected with an external pipeline through the drainage pipe, so as to drain the accumulated water into a ditch, avoiding the damage of the accumulated water to the site environment. The device has compact structure, is convenient for underground installation and use, saves installation cost, has high reliability, reduces failure rate, is sensitive in action, is easy to maintain, reduces maintenance cost, and prolongs the service life of the equipment.

[0041] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents. It should be noted that in this document, if there are relationship terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

Claims

1. A non-powered negative pressure automatic water discharge device, comprising a tank body (1) and a tank cover (2) installed on the upper end of the tank body (1), wherein a water inlet pipe (11) is provided on one side of the tank body (1), and a water inlet valve (12) is provided inside the tank body (1) to connect to the extraction pipeline through the water inlet pipe (11), characterized in that: The bucket cover (2) is provided with a two-position four-way valve (3), the two-position four-way valve (3) comprises a valve body (31) and a valve rod (32) slidingly arranged in the valve body (31), the upper end of the valve body (31) is provided with a connecting barrel (4), and an air filter (5) is arranged on the connecting barrel (4); the outer end of the valve rod (32) is connected with a guide rod (33), and the guide rod (33) is connected with a floating ball (6) in the bucket body (1), so that the passage in the valve body (31) is controlled to switch by the floating ball (6), a permanent magnet for improving the stability of the valve rod (32) is further arranged in the valve body (31), the bucket body (1) is arranged in a drain groove (7), one side of the lower end of the bucket body (1) is provided with a water outlet pipe (13), and the water outlet pipe (13) is provided with a water outlet valve (14) outside, so as to guide the accumulated water into the drain groove (7).

2. The automatic, unpowered, negative pressure water drain according to claim 1, characterized in that: The two-position four-way valve (3) is connected with a balanced negative pressure air pipe (34), and the balanced negative pressure air pipe (34) is connected with a pumping pipe.

3. The unpowered, negative pressure, automatic water drain according to claim 2, wherein: The valve body (31) comprises a valve seat (35), a guide sleeve (36) arranged on one side of the valve seat (35), and a magnetic cap (37) arranged at the outer end of the guide sleeve (36), air holes connected with the balanced negative pressure air pipe (34) and the bucket body (1) are respectively formed in the valve seat (35), air inlets are formed in the two sides of the magnetic cap (37), and the guide sleeve (36) is fixedly connected with the connecting barrel (4), so that the magnetic cap (37) is arranged in the connecting barrel (4), the air filter (5) is arranged on the side, away from the valve body (31), of the connecting barrel (4), one end of the air filter (5) is inserted into the inner cavity of the connecting barrel (4) and is fixedly connected with the connecting barrel (4), so as to filter the gas introduced into the air inlet of the valve body (31).

4. The self-bleeding, unpowered, negative pressure water drain according to claim 3, wherein: The permanent magnet comprises a first permanent magnet (38) arranged in the inner cavity of the magnetic cap (37) and a second permanent magnet (39) arranged on one side of the valve rod (32), the second permanent magnet (39) is inlaidly arranged in a cone (321) on one side of the valve rod (32), and a sealing ring (30) is further arranged on one side of the guide sleeve (36) and matched with the cone (321), so as to switch the passage by moving the cone (321).

5. The self-bleeding device according to claim 1, wherein: The bucket cover (2) is fixedly connected with the bucket body (1) through buckles (8) and forms a sealed structure, and a plurality of buckles (8) are arranged along the annular distribution of the bucket cover (2) and the bucket body (1).

6. The self-bleeding, unpowered, negative pressure water drain according to claim 1, wherein: The floating ball (6) is further provided with a counterweight (61) for increasing weight.

7. The self-bleeding, unpowered, negative pressure automatic water drain according to claim 1, wherein: One side of the drain groove (7) is provided with a drain pipe (71) and is connected with an external pipeline through the drain pipe (71).

8. The self-bleeding, unpowered, negative pressure water drain according to claim 1, wherein: The water inlet valve (12) and the water outlet valve (14) are one-way valve structures.

9. The self-activated, unpowered, negative pressure water drain according to claim 1, wherein: The filter element in the air filter (5) adopts a nanometer filter element. The filter element in the air filter (5) adopts a nanometer filter element.

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