Air compressor convenient to drain water

Abstract

The utility model relates to the field of air compressors, in particular to an air compressor convenient to drain water, which comprises an air storage tank, a communicating pipe and an electronic drain valve, the air storage tank is provided with an air storage cavity, the upper end of the air storage tank is provided with a water outlet, the water outlet is communicated with the air storage cavity, the communicating pipe is coaxially and fixedly connected to the inner wall of the water outlet, and the electronic drain valve is arranged on the communicating pipe. The lower end of the communicating pipe is close to the bottom wall of the air storage cavity, the electronic drain valve is arranged above the air storage tank, the electronic drain valve is connected to the inner wall of the communicating pipe, and the electronic drain valve is used for controlling the communicating pipe to be connected and disconnected. The air pressure in the air storage tank is larger than the external atmospheric pressure, the electronic drain valve controls the communicating pipe to intermittently communicate, water at the bottom of the air storage tank is intermittently discharged through the communicating pipe due to the air pressure difference, the air compressor does not need to be stopped during drainage, and drainage is facilitated.

Description

Technical Field

[0001] The present application relates to the field of air compressors, and in particular to an air compressor facilitating drainage. Background Art

[0002] An air compressor, fully known as an air compressor, is a device that converts the mechanical energy of a prime mover (usually an electric motor) into gas pressure energy and is a pneumatic pressure generating device for compressed air.

[0003] The working principle of an air compressor mainly involves three processes: compression, cooling, and storage. Air enters the compression chamber through the air inlet and is compressed by a piston, screw, or other compression elements, reducing the volume of the air and increasing its pressure. During the compression process, since the air is compressed, its temperature will rise. To prevent the equipment from overheating, it is usually necessary to discharge the heat through a cooling system to maintain a good working temperature. The cooled compressed air enters the air storage tank for storage. When the pressure in the air storage tank reaches the set value, the air compressor will automatically stop working and restart until the pressure drops to a certain extent to ensure that there is always enough compressed air supplied to other equipment for use.

[0004] During the storage stage, the air itself contains water molecules. Since the pressure in the air storage tank is increasing, water vapor is prone to condense into water. After using for a period of time, a certain amount of liquid water will accumulate at the bottom of the air storage tank. The presence of liquid water reduces the gas storage capacity of the air storage tank and also causes the water content of the discharged gas to be too high. Therefore, it is necessary to drain water frequently.

[0005] In the existing structure, a drain port is provided at the lower end of the air storage tank, and a valve is used to control the on-off of the drain port. To ensure the safety of drainage, it is necessary to first stop the air compressor, then discharge the gas in the air storage tank to reduce the air pressure in the air storage tank, and then open the valve to drain water. The whole process wastes time and causes inconvenience to the user. Utility Model Content

[0006] In order to facilitate drainage, the present application provides an air compressor facilitating drainage.

[0007] The air compressor facilitating drainage provided by the present application adopts the following technical solutions:

[0008] An air compressor facilitating drainage includes an air storage tank, a connecting pipe, and an electronic drain valve. The air storage tank is provided with an air storage chamber. An outlet is provided at the upper end of the air storage tank, and the outlet communicates with the air storage chamber. The connecting pipe is coaxially and fixedly connected to the inner wall of the outlet, and the lower end of the connecting pipe is close to the bottom wall of the air storage chamber. The electronic drain valve is provided above the air storage tank and is connected to the inner wall of the connecting pipe. The electronic drain valve is used to control the on-off of the connecting pipe.

[0009] By adopting the above technical solution, the air pressure in the gas storage tank is greater than the external atmospheric pressure. The electronic drain valve controls the intermittent connection of the connecting pipe, and the air pressure difference causes the water at the bottom of the gas storage tank to be discharged intermittently through the connecting pipe. There is no need to pause the air compressor during drainage, which is convenient for drainage.

[0010] Preferably, it further includes a drain valve at the lower end of the gas storage tank. There is a drain port, and the drain port communicates with the gas storage cavity. The drain valve is connected to the inner wall of the drain port, and the drain valve is used to control the on-off of the drain port.

[0011] By adopting the above technical solution, the drain port is used to discharge the water in the gas storage tank. When the equipment is not working, the drain valve can be opened to discharge all the water in the gas storage tank, which is convenient for drainage.

[0012] Preferably, the height of the bottom wall of the gas storage cavity increases as it is farther away from the drain port.

[0013] By adopting the above technical solution, the water is discharged along the height difference of the bottom wall of the gas storage cavity, which is convenient for discharging all the water in the gas storage cavity and improves the drainage efficiency.

[0014] Preferably, the lower end of the connecting pipe extends into the drain port.

[0015] By adopting the above technical solution, the height of the connecting pipe is relatively low, and more water can be discharged through the electronic drain valve, reducing the remaining water in the gas storage tank, which is convenient for drainage.

[0016] Preferably, it further includes a hose. The hose is detachably connected to the end of the connecting pipe far from the bottom wall of the gas storage cavity. The hose communicates with the connecting pipe, and the electronic drain valve is arranged between the hose and the water outlet.

[0017] By adopting the above technical solution, the hose is externally connected to the connecting pipe, and the hose can lead the water to a suitable place for drainage, reducing the probability of pedestrians being splashed by water, which is convenient for users.

[0018] Preferably, the connecting pipe includes a water suction pipe, a fixed pipe and a connecting pipe. The water suction pipe is coaxially and fixedly connected to the inner wall of the water outlet. The lower end of the water suction pipe is close to the bottom wall of the gas storage cavity. The fixed pipe is fixedly connected to the upper end of the gas storage tank. One end of the fixed pipe communicates with the water suction pipe, and the other end of the fixed pipe is blocked. There is a connection port on the outer wall of the fixed pipe. One end of the connecting pipe is coaxially and fixedly connected to the inner wall of the connection port, and the other end of the connecting pipe is detachably connected to the hose. The electronic drain valve is connected to the inner wall of the connecting pipe.

[0019] By adopting the above technical solution, the fixed pipe is fixed on the gas storage tank, the connecting pipe and the fixed pipe are relatively fixed, and the electronic drain valve is connected to the connecting pipe, which is convenient for fixing the electronic drain valve and improving the stability of the electronic drain valve.

[0020] Preferably, a ring groove is coaxially provided at one end of the connecting pipe away from the fixed pipe, and the ring groove extends towards the end away from the fixed pipe to penetrate through the connecting pipe. One end of the hose is embedded in the ring groove, and the inner wall of the hose abuts against the bottom of the ring groove.

[0021] By adopting the above technical solution, the ring groove facilitates the installation of the hose, improves the installation efficiency, and is convenient for users to use.

[0022] Preferably, it further includes a cylinder. The cylinder block of the cylinder is fixedly connected to the upper end of the air storage tank. The cylinder is provided with a compression chamber, an air outlet of the cylinder, and the air outlet communicates with the compression chamber and the air storage chamber. The cylinder is provided with a temperature control ring cavity, and the temperature control ring cavity is arranged on the outer periphery of the compression chamber.

[0023] By adopting the above technical solution, when the gas compression amount in the cylinder is small, the temperature of the cylinder is low, and it is easy for water vapor to liquefy during the compression process. Water is likely to cause emulsification of the lubricating oil, affecting the service life of the cylinder. The temperature control ring cavity heats the cylinder to a certain temperature, reducing the probability of water vapor condensation during compression and extending the service life of the air compressor.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The air pressure in the air storage tank is greater than the external atmospheric pressure. The electronic drain valve controls the intermittent connection of the connecting pipe, and the pressure difference causes the water at the bottom of the air storage tank to be discharged intermittently through the connecting pipe. There is no need to pause the operation of the air compressor during drainage, which is convenient for drainage.

[0026] 2. The height of the connecting pipe is relatively low, and more water can be discharged through the electronic drain valve, reducing the remaining water in the air storage tank, which is convenient for drainage.

[0027] 3. When the gas compression amount in the cylinder is small, the temperature of the cylinder is low, and it is easy for water vapor to liquefy during the compression process. Water is likely to cause emulsification of the lubricating oil, affecting the service life of the cylinder. The temperature control ring cavity heats the cylinder to a certain temperature, reducing the probability of water vapor condensation during compression and extending the service life of the air compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is an overall structural schematic diagram of an air compressor convenient for drainage.

[0029] Figure 2 is a cross-sectional view of an air compressor convenient for drainage.

[0030] Description of reference numerals: 1. Gas storage tank; 11. Gas storage cavity; 12. Drain outlet; 13. Water outlet; 2. Universal wheel; 3. Drain valve; 4. Connecting pipe; 41. Water suction pipe; 42. Fixed pipe; 421. Connection port; 43. Connecting tube; 431. Ring groove; 5. Hose; 6. Electronic drain valve; 7. Cylinder; 71. Compression cavity; 72. Air outlet; 73. Temperature control ring cavity; 8. Temperature control component; 81. Temperature control box; 811. Water storage cavity; 812. Water inlet; 813. Communication port; 814. Installation cavity; 82. Water pump; 83. Water inlet pipe; 84. Water outlet pipe; 85. Electric heating wire; 86. Controller; 87. Temperature sensor. Detailed implementation manners

[0031] The following further elaborates on this application in conjunction with the Figure 1-2 accompanying drawings.

[0032] The embodiment of this application discloses an air compressor facilitating drainage. Refer to Figure 1 , an air compressor facilitating drainage includes a gas storage tank 1, universal wheels 2, a drain valve 3, a connecting pipe 4, a hose 5, an electronic drain valve 6, a cylinder 7 and a temperature control component 8.

[0033] Refer to Figure 2 , the universal wheels 2 are fixedly connected to the lower end of the gas storage tank 1. There are four universal wheels 2, and the four universal wheels 2 are respectively close to the four corners of the gas storage tank 1. The gas storage tank 1 is provided with a gas storage cavity 11. A drain outlet 12 is provided at the lower end of the gas storage tank 1. The drain outlet 12 communicates with the gas storage cavity 11. The drain valve 3 is connected to the inner wall of the drain outlet 12. The drain valve 3 is used to control the on-off of the drain outlet 12, and the drain valve 3 is set as a ball valve. The height of the bottom wall of the gas storage cavity 11 increases as it moves away from the drain outlet 12.

[0034] A water outlet 13 is provided at the upper end of the gas storage tank 1. The water outlet 13 communicates with the gas storage cavity 11. The connecting pipe 4 includes a water suction pipe 41, a fixed pipe 42 and a connecting tube 43. The water suction pipe 41 is coaxially and fixedly connected to the inner wall of the water outlet 13. The lower end of the water suction pipe 41 is connected to the inner wall of the drain outlet 12. The diameter of the water suction pipe 41 is smaller than that of the drain outlet 12, and the height of the water suction pipe 41 is greater than that of the drain valve 3.

[0035] Refer to Figure 2 , the fixed pipe 42 is fixedly connected to the upper end of the gas storage tank 1. One end of the fixed pipe 42 communicates with the water suction pipe 41, and the other end of the fixed pipe 42 is blocked. The axis of the fixed pipe 42 is collinear with the axis of the water outlet 13. A connection port 421 is provided on the outer wall of the fixed pipe 42. One end of the connecting tube 43 is coaxially and fixedly connected to the inner wall of the connection port 421, and the other end of the connecting tube 43 is coaxially provided with a ring groove 431. The ring groove 431 extends towards the end away from the fixed pipe 42 to penetrate through the connecting tube 43.

[0036] One end of the hose 5 is embedded in the annular groove 431, the inner wall of the hose 5 abuts against the bottom of the annular groove 431, and the hose 5 communicates with the connecting pipe 4. The electronic drain valve 6 is connected to the inner wall of the connecting pipe 43, and the electronic drain valve 6 is used to control the on-off of the connecting pipe 4.

[0037] Referring to Figure 2 , the cylinder block of the cylinder 7 is fixedly connected to the upper end of the air storage tank 1. The cylinder 7 is provided with a compression chamber 71, the cylinder 7 is provided with an air outlet 72, the air outlet 72 communicates with the compression chamber 71 and the air storage chamber 11, the cylinder 7 is provided with a temperature control annular chamber 73, the temperature control annular chamber 73 is arranged on the outer periphery of the compression chamber 71, and water is used to fill the temperature control annular chamber 73.

[0038] Referring to Figure 1 and Figure 2 , the temperature control assembly 8 includes a temperature control box 81, a water pump 82, a water inlet pipe 83, a water outlet pipe 84, a heating wire 85, a controller 86 and a temperature sensor 87. The temperature control box 81 is fixedly connected to the upper end of the air storage tank 1. The temperature control box 81 is provided with a water storage chamber 811. The temperature control box 81 is provided with a water inlet 812 and a communication port 813. Both the water inlet 812 and the communication port 813 communicate with the water storage chamber 811. The water pump 82 is connected to the inner wall of the water storage chamber 811. One end of the water inlet pipe 83 communicates with the outlet of the water pump 82, and the other end of the water inlet pipe 83 communicates with the temperature control annular chamber 73. The water inlet pipe 83 is coaxially and fixedly connected to the inner wall of the water inlet 812. One end of the water outlet pipe 84 extends downward to be close to the bottom wall of the water storage chamber 811, and the other end of the water outlet pipe 84 communicates with the temperature control annular chamber 73. The water outlet pipe 84 is coaxially and fixedly connected to the inner wall of the communication port 813.

[0039] Referring to Figure 2 , the temperature control box 81 is provided with an installation cavity 814. The installation cavity 814 is arranged on the outer periphery of the water storage chamber 811. The heating wire 85 is fixedly connected to the inner wall of the installation cavity 814. The heating wire 85 is used to heat water. The controller 86 is fixedly connected to the upper end of the temperature control box 81. The temperature sensor 87 is connected to the inner wall of the temperature control annular chamber 73 facing away from the compression chamber 71 for detecting the temperature of the compression chamber 71. The temperature sensor 87 sends the detected value to the controller 86, and the controller 86 is electrically connected to the water pump 82 and the heating wire 85.

[0040] The implementation principle of an air compressor facilitating drainage in an embodiment of the present application is as follows: The electronic drain valve 6 automatically controls to open every once in a while, and the air pressure difference enables the water at the bottom of the air storage tank 1 to be intermittently discharged through the connecting pipe 4. There is no need to pause the operation of the air compressor during drainage, which facilitates drainage. When the temperature sensor 87 detects that the temperature of the temperature control annular chamber 73 is too low, the heating wire 85 heats the water in the water storage chamber 811, and the water pump 82 controls the water circulation to increase the water temperature in the temperature control annular chamber 73, reducing the probability of water vapor liquefaction in the compression chamber 71 and prolonging the service life of the cylinder 7.

[0041] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An air compressor that is easy to drain, characterized in that: The invention comprises an air storage tank (1), a connecting pipe (4) and an electronic drain valve (6), wherein the air storage tank (1) is provided with an air storage cavity (11), the upper end of the air storage tank (1) is provided with a water outlet (13), the water outlet (13) is connected to the air storage cavity (11), the connecting pipe (4) is coaxially fixedly connected to the inner wall of the water outlet (13), the lower end of the connecting pipe (4) is close to the bottom wall of the air storage cavity (11), the electronic drain valve (6) is arranged above the air storage tank (1), the electronic drain valve (6) is connected to the inner wall of the connecting pipe (4), and the electronic drain valve (6) is used to control the opening and closing of the connecting pipe (4).

2. The air compressor for facilitating drainage according to claim 1, characterized in that: It also comprises a drain valve (3), a drain outlet (12) being provided at the lower end of the gas storage tank (1), the drain outlet (12) being connected to the gas storage cavity (11), the drain valve (3) being connected to the inner wall of the drain outlet (12), and the drain valve (3) being used to control the on and off of the drain outlet (12).

3. The air compressor for easy drainage according to claim 2, characterized in that: The height of the bottom wall of the air storage chamber (11) increases as it moves away from the water discharge port (12).

4. The air compressor for easy drainage according to claim 3, characterized in that: The lower end of the connecting pipe (4) extends into the drain outlet (12).

5. The air compressor for easy drainage according to claim 1, characterized in that: It also comprises a hose (5), the hose (5) being detachably connected to an end of the connecting pipe (4) away from the bottom wall of the air storage chamber (11), the hose (5) being connected to the connecting pipe (4), and the electronic drain valve (6) being arranged between the hose (5) and the water outlet (13).

6. The air compressor for easy drainage according to claim 5, characterized in that: The connecting pipe (4) comprises a water pumping pipe (41), a fixed pipe (42) and a connecting pipe (43); the water pumping pipe (41) is coaxially fixedly connected to the inner wall of the water outlet (13); the lower end of the water pumping pipe (41) is close to the bottom wall of the gas storage chamber (11); the fixed pipe (42) is fixedly connected to the upper end of the gas storage tank (1); one end of the fixed pipe (42) is connected to the water pumping pipe (41); the other end of the fixed pipe (42) is blocked; the outer wall of the fixed pipe (42) is provided with a connecting port (421); one end of the connecting pipe (43) is coaxially fixedly connected to the inner wall of the connecting port (421); the other end of the connecting pipe (43) is detachably connected to the hose (5); and the electronic drain valve (6) is connected to the inner wall of the connecting pipe (43).

7. The air compressor for easy drainage according to claim 6, characterized in that: An annular groove (431) is coaxially provided at one end of the connecting tube (43) away from the fixed tube (42); the annular groove (431) extends toward the end away from the fixed tube (42) to penetrate the connecting tube (43); one end of the hose (5) is embedded in the annular groove (431); and the inner wall of the hose (5) abuts against the bottom of the annular groove (431).

8. The air compressor for easy drainage according to claim 1, characterized in that: The gas storage tank (11) further comprises a cylinder (7), wherein the cylinder body of the cylinder (7) is fixedly connected to the upper end of the gas storage tank (1), the cylinder (7) is provided with a compression chamber (71), the cylinder (7) is provided with an air outlet (72), the air outlet (72) is connected to the compression chamber (71) and the gas storage chamber (11), and the cylinder (7) is provided with a temperature control ring chamber (73), and the temperature control ring chamber (73) is arranged on the outer periphery of the compression chamber (71).

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