Automatic drainage device for air compression tank

Abstract

The utility model relates to an automatic drainage device for an air compression tank body, which comprises a tank body, and the bottom of the tank body is communicated with a drainage pipe; the drain pipe is obliquely arranged along the horizontal plane, and a piston axially sliding along the drain pipe and attached to the inner wall of the drain pipe is arranged in the drain pipe; a water inlet and a water outlet are formed in the upper end and the lower end of the side face of the piston respectively and communicate with each other, and the distance between the water inlet and the water outlet is larger than the length of the drainage pipe. A floating block connected with the piston is arranged in the tank body, and the density of the floating block is smaller than that of water; the piston is driven to move through accumulated water in the tank body and buoyancy of the floating block, and the inside and the outside of the tank body are communicated, so that the accumulated water in the tank body is discharged timely, and the device is simple, efficient, safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of air compression, in particular to an automatic drainage device for an air compression tank body. Background Technique

[0002] An air compression tank body is a tank-shaped storage device for storing compressed air. The air in nature contains moisture. During the air compression process, the temperature of the compressed air will rise. Due to the increase in air density, some water will precipitate and adsorb on the inner wall of the tank body after entering the air compression tank body, and finally accumulate in the tank body to form accumulated water. If the excess water is not discharged regularly, it will enter the equipment along with the gas, which will affect the normal operation of the equipment.

[0003] The existing drainage devices usually adopt manual drainage or timed drainage; in the manual drainage method, employees may forget to drain water due to work negligence, resulting in equipment damage; in the timed drainage method, due to different production requirements, the amount of compressed air required is different. When the demand for compressed air is small, the accumulated water in the tank body decreases, and when the demand for compressed air is large, the accumulated water in the tank body increases, and it is impossible to drain water in a timely and effective manner.

[0004] Therefore, a device that can automatically drain water according to the accumulated water volume in the tank body is needed. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides an automatic drainage device for an air compression tank body, which drives a piston to move through the accumulated water and the buoyancy of a floating block in the tank body, and connects the inside and outside of the tank body, so as to drain the accumulated water in the tank body in time, which is simple, efficient, safe and reliable, and convenient to operate.

[0006] The utility model is realized by the following technical solutions. An automatic drainage device for an air compression tank body is provided, which includes a tank body, and a drain pipe is connected to the bottom of the tank body; the drain pipe is arranged obliquely along the horizontal plane, and a piston that slides along the axial direction of the drain pipe and fits with the inner wall of the drain pipe is arranged in the drain pipe; water inlets and water outlets are respectively arranged at the upper and lower ends on the side surface of the piston, the water inlets and the water outlets are connected, and the distance between the water inlets and the water outlets is greater than the length of the drain pipe; a floating block connected to the piston is arranged in the tank body, and the density of the floating block is less than the density of water; the accumulated water and the buoyancy of the floating block in the tank body drive the piston to move, and connect the inside and outside of the tank body, so as to drain the accumulated water in the tank body in time.

[0007] As an optimization, a threaded hole arranged obliquely along the horizontal plane is opened on the piston, a screw rod adapted to the threaded hole is arranged in the threaded hole, and the screw rod is connected to the floating block; the distance between the floating block and the piston is adjusted through the threaded hole and the screw rod, so as to adjust the accumulated water volume reaching the drainage standard.

[0008] As an optimization, the bottom of the piston is connected to the tank body through a return spring; the return spring ensures that the piston returns to its original position after draining.

[0009] As an optimization, a water collecting hopper B is provided at the bottom of the tank body, and the bottom of the water collecting hopper B is communicated with a drain pipe; the accumulated water in the tank body is gathered through the water collecting hopper B.

[0010] As an optimization, a gas storage chamber and a water accumulation chamber are arranged in the tank body in sequence along the vertical direction, and the bottom of the gas storage chamber is communicated with the water accumulation chamber through a one-way check valve with an opening facing the water accumulation chamber; the accumulated water in the gas storage chamber is discharged through the one-way check valve, reducing the water content in the gas storage chamber.

[0011] As an optimization, a water collecting hopper A is provided at the bottom of the gas storage chamber, and the one-way check valve is located at the bottom of the water collecting hopper A; the accumulated water in the gas storage chamber is gathered through the water collecting hopper A.

[0012] As an optimization, a vibration motor is provided on the tank body, and the tank body is connected to a bracket through a shock absorption device; the vibration motor and the shock absorption device are used to accelerate the gathering of the accumulated water in the tank body.

[0013] The beneficial effects of the present utility model are as follows: the accumulated water and the buoyancy of the floating block in the tank body drive the piston to move, and the inside and outside of the tank body are communicated, so as to timely discharge the accumulated water in the tank body; the distance between the floating block and the piston is adjusted through the screw hole and the screw rod, so as to adjust the amount of accumulated water reaching the drainage standard; the return spring ensures that the piston returns to its original position after draining; the accumulated water in the tank body is gathered through the water collecting hopper B; the accumulated water in the gas storage chamber is discharged through the one-way check valve, reducing the water content in the gas storage chamber; the accumulated water in the gas storage chamber is gathered through the water collecting hopper A; the vibration motor and the shock absorption device are used to accelerate the gathering of the accumulated water in the tank body. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is Figure 1 a schematic structural diagram of part A of

[0016] As shown in the figure:

[0017] 1. Tank body, 2. Drain pipe, 3. Piston, 4. Rope, 5. Floating block, 6. Sealing device A, 7. Screw rod, 8. Return spring, 9. Water collecting hopper A, 10. One-way check valve, 11. Water collecting hopper B, 12. Vibration motor, 13. Shock absorption device, 14. Bracket, 15. Sealing device B, 101. Gas storage chamber, 102. Water accumulation chamber, 301. Water inlet, 302. Drain hole, 303. Water outlet, 304. Limiting device. Detailed Embodiment

[0018] To clearly illustrate the technical features of this solution, the following will elaborate on this solution through specific implementation manners.

[0019] As Figure 1 and Figure 2 shown, the automatic drainage device for an air compression tank body of the present utility model includes a tank body 1, and a drain pipe 2 is connected to the bottom of the tank body 1; the drain pipe 2 is inclined along the horizontal plane, and a piston 3 that slides axially along the drain pipe 2 and is attached to the inner wall of the drain pipe 2 is provided in the drain pipe 2; water inlet openings 301 and water outlet openings 303 are respectively formed at the upper and lower ends on the side surface of the piston 3, the water inlet openings 301 and the water outlet openings 303 are communicated with each other, and the distance between the water inlet openings 301 and the water outlet openings 303 is greater than the length of the drain pipe 2; a floating block 5 connected to the piston 3 is provided in the tank body 1, and the density of the floating block 5 is less than the density of water.

[0020] The drain pipe 2 extends in the vertical direction; a drain hole 302 is formed in the piston 3, and the water inlet openings 301 and the water outlet openings 303 are communicated through the drain hole 302; the density of the floating block 5 is greater than the density of compressed air; a sealing device A6 extending along the circumferential direction of the drain pipe 2 is embedded at the upper end in the drain pipe 2, the distance between the water inlet openings 301 and the top of the piston 3 is greater than the distance between the sealing device A6 and the top of the drain pipe 2, and the sealing device A6 is attached to the side surface of the piston 3; the pulling force of the floating block 5 on the piston 3 is F1, the gravity of the piston 3 is G, and the friction force between the piston 3 and the drain pipe 2 is F2, G > F2, F1 > G + F2; an air inlet and an air outlet are formed on the tank body 1; a limiting device 304 is provided at the top of the piston 3, and the diameter of the limiting device 304 is greater than the inner diameter of the drain pipe 2.

[0021] The accumulated water in the tank body 1 gradually converges at the bottom of the tank body 1, and the floating block 5 gradually floats upward under the action of the accumulated water and drives the piston 3 to move upward until the water inlet openings 301 are separated from the drain pipe 2 and enter the tank body 1. The accumulated water in the tank body 1 enters from the water inlet openings 301 and is discharged from the tank body 1 through the water outlet openings 303; as the accumulated water in the tank body 1 decreases, the floating block 5 moves downward, and the piston 3 moves downward under the action of its own gravity until the water inlet openings 301 re-enter the drain pipe 2, and the discharge of the accumulated water in the tank body 1 stops.

[0022] The staff pushes the piston 3 upward until the water inlet openings 301 are separated from the drain pipe 2 and enter the tank body 1. The accumulated water in the tank body 1 enters from the water inlet openings 301 and is discharged from the tank body 1 through the water outlet openings 303; the staff releases the piston 3, and the piston 3 moves downward under the action of its own gravity until the water inlet openings 301 re-enter the drain pipe 2, and the discharge of the accumulated water in the tank body 1 stops.

[0023] As Figure 1 and Figure 2The piston 3 shown is provided with a threaded hole inclined along the horizontal plane. A screw rod 7 adapted to the threaded hole is arranged in the threaded hole, and the screw rod 7 is connected to the floating block 5; the axis of the threaded hole extends along the vertical direction, and the top of the screw rod 7 is connected to the floating block 5 through a rope 4; the upper end of the screw rod 7 is not provided with threads, and the upper end of the screw rod 7 penetrates upward through the piston 3. A sealing device B15 adapted to the screw rod 7 is sleeved on the upper end of the screw rod 7, and the sealing device B15 is fixedly connected to the piston 3.

[0024] Rotate the screw rod 7, and the screw rod 7 moves along the vertical direction to adjust the distance between the floating block 5 and the piston 3.

[0025] As Figure 1 and Figure 2 shown, the bottom of the piston 3 is connected to the tank body 1 through a return spring 8; the return spring 8 extends along the vertical direction, the top of the return spring 8 is fixedly connected to the bottom of the piston 3, and the bottom of the return spring 8 is fixedly connected to the tank body 1; the pulling force of the return spring 8 is F3, F3 + G > F2, and F1 > G + F2 + F3.

[0026] As the accumulated water in the tank body 1 decreases, the floating block 5 moves downward, and the piston 3 moves downward under the action of its own gravity and the pulling force of the return spring 8 until the water inlet 301 re-enters the drain pipe 2, and the discharge of the accumulated water in the tank body 1 stops.

[0027] As Figure 1 shown, a water collecting hopper B11 is provided at the bottom of the tank body 1, and the bottom of the water collecting hopper B11 is communicated with the drain pipe 2.

[0028] The accumulated water in the tank body 1 flows downward under the action of gravity and converges at the bottom of the water collecting hopper B11.

[0029] As Figure 1 shown, an air storage chamber 101 and a water accumulation chamber 102 are arranged in the tank body 1 in sequence along the vertical direction. The bottom of the air storage chamber 101 is communicated with the water accumulation chamber 102 through a one-way check valve 10 with an opening facing the water accumulation chamber 102; when the air pressure in the air storage chamber 101 is greater than the air pressure in the water accumulation chamber 102, the air and accumulated water in the air storage chamber 101 pass through the one-way check valve 10 and enter the water accumulation chamber 102; when the air pressure in the air storage chamber 101 is equal to the air pressure in the water accumulation chamber 102, the accumulated water in the air storage chamber 101 enters the water accumulation chamber 102 under the action of its own gravity through the one-way check valve 10; the air and accumulated water in the water accumulation chamber 102 originate from the air storage chamber 101, and the accumulated water in the water accumulation chamber 102 is continuously discharged. Therefore, the air pressure in the water accumulation chamber 102 is less than or equal to the air pressure in the air storage chamber 101. Only when the air pressure in the air storage chamber 101 is equal to the air pressure in the water accumulation chamber 102 and the accumulated water in the air storage chamber 101 enters the water accumulation chamber 102, the air pressure in the water accumulation chamber 102 may be slightly greater than the air pressure in the air storage chamber 101.

[0030] The accumulated water in the gas storage bin 101 converges at the bottom of the gas storage bin 101. As the accumulated water gradually increases, the one-way check valve 10 opens, and the accumulated water flows from the gas storage bin 101 into the water accumulation bin 102 through the one-way check valve 10; as the accumulated water gradually decreases, the one-way check valve 10 closes.

[0031] As Figure 1 shown, a water collecting hopper A9 is provided at the bottom of the gas storage bin 101, and the one-way check valve 10 is located at the bottom of the water collecting hopper A9.

[0032] The accumulated water in the gas storage bin 101 flows downward under the action of gravity and converges at the bottom inside the water collecting hopper A9.

[0033] As Figure 1 shown, a vibration motor 12 is provided on the tank body 1, and the tank body 1 is connected to a support 14 through a shock absorption device 13; the vibration motor 12 includes a motor fixed on the tank body 1, and an eccentric wheel is fixed on the output shaft of the motor; the shock absorption device 13 is a prior art; the support 14 is fixedly connected to the ground.

[0034] Start the vibration motor 12, the vibration motor 12 drives the tank body 1 to vibrate on the support 14, the shock absorption device 13 intensifies the vibration of the tank body 1, and the accumulated water attached to the inner wall of the tank body 1 accelerates downward flow.

[0035] During the actual production process, rotate the screw rod 7, the screw rod 7 moves in the vertical direction and adjusts the distance between the floating block 5 and the piston 3; start the vibration motor 12, the vibration motor 12 drives the tank body 1 to vibrate on the support 14, the shock absorption device 13 intensifies the vibration of the tank body 1, and the accumulated water attached to the inner wall of the tank body 1 accelerates downward flow.

[0036] The accumulated water in the gas storage bin 101 flows downward under the action of gravity and converges at the bottom inside the water collecting hopper A9; as the accumulated water gradually increases, the one-way check valve 10 opens, and the accumulated water flows from the gas storage bin 101 into the water accumulation bin 102 through the one-way check valve 10; as the accumulated water gradually decreases, the one-way check valve 10 closes.

[0037] The accumulated water in the water accumulation bin 102 flows downward under the action of gravity and converges at the bottom inside the water collecting hopper B11. The floating block 5 gradually floats under the action of the accumulated water and drives the piston 3 to move upward until the water inlet 301 disengages from the drain pipe 2 and enters the tank body 1. The accumulated water in the tank body 1 enters through the water inlet 301 and is discharged from the tank body 1 through the water outlet 303; as the accumulated water in the tank body 1 decreases, the floating block 5 moves downward, and the piston 3 moves downward under the action of its own gravity and the pulling force of the return spring 8 until the water inlet 301 re-enters the drain pipe 2, and the discharge of the accumulated water in the tank body 1 stops.

[0038] The staff pushes the piston 3 upward until the water inlet 301 disengages from the drain pipe 2 and enters the tank body 1. The accumulated water in the tank body 1 enters through the water inlet 301 and is discharged from the tank body 1 through the water outlet 303. The staff releases the piston 3, and the piston 3 moves downward under the action of its own gravity and the pulling force of the return spring 8 until the water inlet 301 re-enters the drain pipe 2, and the discharge of the accumulated water in the tank body 1 stops.

[0039] Of course, the above description is not limited to the above examples. The technical features not described in the present utility model can be realized by or adopted from the prior art, and will not be elaborated here. The above embodiments and drawings are only used to illustrate the technical solution of the present utility model and are not a limitation to the present utility model. The present utility model has been described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that any changes, modifications, additions or substitutions made by those of ordinary skill in the technical field within the substantial scope of the present utility model do not depart from the purpose of the present utility model and should also fall within the protection scope of the claims of the present utility model.

Claims

1. An automatic drainage device for an air compression tank body, comprising a tank body (1), and a drain pipe (2) is communicated with the bottom of the tank body (1); characterized in that: The drain pipe (2) is arranged obliquely along the horizontal plane, and a piston (3) that slides axially along the drain pipe (2) and is attached to the inner wall of the drain pipe (2) is provided inside the drain pipe (2); water inlets (301) and water outlets (303) are respectively formed at the upper and lower ends of the side surface of the piston (3), the water inlets (301) and the water outlets (303) are communicated with each other, and the distance between the water inlets (301) and the water outlets (303) is greater than the length of the drain pipe (2); a floating block (5) connected to the piston (3) is provided inside the tank body (1), and the density of the floating block (5) is less than the density of water.

2. The automatic drainage device for an air compression tank according to claim 1, characterized in that: A screw hole arranged obliquely along the horizontal plane is formed in the piston (3), and a screw rod (7) adapted to the screw hole is provided inside the screw hole, and the screw rod (7) is connected to the floating block (5).

3. The automatic drainage device for an air compression tank according to claim 1, characterized in that: The bottom of the piston (3) is connected to the tank body (1) through a return spring (8).

4. The automatic drainage device for an air compression tank according to claim 1, characterized in that: A water collecting hopper B (11) is provided at the bottom of the tank body (1), and the bottom of the water collecting hopper B (11) is communicated with the drain pipe (2).

5. The automatic drainage device for an air compression tank according to claim 1, characterized in that: An air storage chamber (101) and a water accumulation chamber (102) arranged in sequence along the vertical direction are provided inside the tank body (1), and the bottom of the air storage chamber (101) is communicated with the water accumulation chamber (102) through a one-way check valve (10) with an opening facing the water accumulation chamber (102).

6. The automatic drainage device for an air compression tank according to claim 5, characterized in that: A water collecting hopper A (9) is provided at the bottom of the air storage chamber (101), and the one-way check valve (10) is located at the bottom of the water collecting hopper A (9).

7. The automatic drainage device for an air compression tank according to claim 1, characterized in that: A vibration motor (12) is provided on the tank body (1), and the tank body (1) is connected to a bracket (14) through a shock absorption device (13).

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