A non-drainage self-evaporation structure of an air compressor

Abstract

This utility model provides a self-evaporating structure for air compressors that eliminates the need for drainage, belonging to the field of air compressor technology. It solves the technical problem of existing air compressors requiring manual drainage. The self-evaporating structure for air compressors that eliminates the need for drainage includes an air tank with a closed internal air storage chamber, a fixed frame fixedly connected to the air tank, a motor fixedly connected to the fixed frame, and a motor head fixedly connected to the motor head. The motor head has an air inlet and an air outlet. The air tank includes an air inlet seat and an air outlet seat, with the air outlet connected to the air inlet seat. A connection hole is provided at the top of the air tank, communicating with the air storage chamber. A water outlet pipe is fixedly installed in the connection hole, with one end of the water outlet pipe extending into the bottom of the air tank and the other end connected to a drainer. One end of the drainer is connected to an evaporation basin via a water pipe, and the evaporation basin is fixed to the air tank and close to the motor. This utility model achieves a self-evaporating structure that eliminates the need for manual drainage.

Description

Technical Field

[0001] This utility model belongs to the field of air compressor technology, and specifically refers to an air compressor with a self-evaporating structure that does not require drainage. Background Technology

[0002] In industrial applications, air compressors often draw in air during the suction process. The water vapor in the air cools and forms water in the air tank, and traditional drainage solutions have significant drawbacks. Existing technologies, such as the automatic drainage vacuum pump with publication number CN116877382A, optimize the gas-liquid separation process through an integrated air tank and water storage layer design, but still have the following limitations: a dedicated water storage layer is required to collect condensate, and once the water is full, it still needs to be drained to the outside through pipelines, failing to completely eliminate the problem of liquid residue; the water storage layer and drainage pipeline occupy equipment space, limiting deployment in compact environments. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a self-evaporating structure for air compressors that eliminates the need for drainage. The technical problem this invention aims to solve is how to reduce manual maintenance by allowing water accumulation inside the air compressor to be drained through a self-evaporating structure, thus achieving maintenance-free operation.

[0004] The objective of this utility model can be achieved through the following technical solution: a self-evaporating structure for an air compressor that requires no drainage, comprising an air tank with a closed internal air storage chamber, a fixed frame fixedly connected to the air tank, a motor fixedly connected to the fixed frame, a motor fixedly connected to a motor head, an air inlet and an air outlet on the motor head, the air tank including an air inlet seat and an air outlet seat, the air outlet and the air inlet seat being connected, a connection hole on the top of the air tank being connected to the air storage chamber, a water outlet pipe fixedly installed in the connection hole, one end of the water outlet pipe extending into the bottom of the air tank, the other end of the water outlet pipe being connected to a drainer, one end of the drainer being connected to an evaporation basin via a water pipe, the evaporation basin being fixed on the air tank and close to the motor. This solution utilizes the natural pressure of compressed air for drainage. After the condensate in the air tank is separated by the drainer, it is directly introduced into the evaporation basin and completely vaporized using the waste heat of the motor, achieving zero liquid discharge. An electrically controlled ball valve is installed on the water outlet pipe to control the opening and closing of the water outlet pipe and to achieve periodic instantaneous drainage. A pressure sensor is installed on the drain valve to capture air pressure feedback and send it to the air compressor control system at any time.

[0005] In the above-mentioned self-evaporating structure of an air compressor that does not require drainage, a sealing plug is fixedly installed in the connection hole, the sealing plug has a through sealing hole in the middle, and a water outlet pipe is fixedly sealed in the sealing hole.

[0006] In the above-mentioned self-evaporating structure of an air compressor that does not require drainage, the water outlet pipe includes a water pipe 1 and a water pipe 2 that are connected to each other. One end of the water pipe 1 extends into the bottom of the air storage tank, and one end of the water pipe 2 is connected to the drain. The water pipe 1 is made of rigid material, and the water pipe 2 is made of soft material.

[0007] In the aforementioned self-evaporating structure of an air compressor that does not require drainage, the drainer is fixed to the mounting frame via an arch support, and the drainer is higher than the top of the air tank.

[0008] In the above-mentioned self-evaporating structure of an air compressor that does not require drainage, the upper end of the drainer is provided with a water inlet hole, the second water pipe is fixedly connected to the water inlet hole, the bottom end of the drainer is provided with a water outlet hole, and the water outlet hole is fixedly connected to the third water pipe.

[0009] In the aforementioned self-evaporating structure of an air compressor that requires no drainage, the drainer has a receiving cavity, the water inlet is connected to the receiving cavity through a gradually expanding cavity, a baffle plate is fixedly connected inside the receiving cavity, the baffle plate is arranged opposite to the water inlet and located below the water inlet, the inner wall of the gradually expanding cavity is also provided with an installation hole and an air passage hole, the air passage hole connects the gradually expanding cavity and the installation hole, a pressure sensor is installed in the installation hole, the baffle plate has at least two pieces and is arranged in a spiral, the baffle plates are stacked spirally without axial gaps, and there is a spiral gap between two adjacent baffle plates.

[0010] In the aforementioned self-evaporating, drain-free structure of an air compressor, the upper end of the drainer is provided with a water inlet, and the water outlet pipe is fixedly connected to the water inlet. The bottom end of the drainer is provided with a water outlet, which is fixedly connected to a water pipe. A float valve is installed inside the drainer to control the opening and closing of the water outlet. When the water level in the drainer reaches a certain height, the float rises with the water level, opening the water outlet and draining water; when the water level drops, the float falls, closing the drain. This achieves the function of automatically closing when there is no water to prevent gas leakage and automatically opening the drain when there is water, completely without manual intervention.

[0011] In the above-mentioned self-evaporating structure of an air compressor that does not require drainage, an isolation plate and a guide plate are also provided on the inner wall of the drainer. The isolation plate has a water passage hole in the middle. The isolation plate is located between the guide plate and the water outlet hole. The float valve is either close to or away from the water passage hole.

[0012] Compared with existing technologies, the technical advantages of this utility model are as follows: 1. The condensate collected at the bottom of the gas storage tank is guided through a pipeline system to an evaporation basin fixed near the motor. Utilizing the waste heat generated by the motor as a heat source, and with the vibration of the air compressor itself, the condensate is continuously and efficiently evaporated into water vapor and discharged into the atmosphere. This completely avoids the inconvenience of manually emptying the water storage container or relying on external drainage pipes in traditional solutions, achieving drainage-free and maintenance-free operation. 2. The evaporation basin is arranged near the motor, which generates a large amount of heat, making full use of the previously wasted waste heat from motor operation to evaporate water. No additional electricity or other energy is required for evaporation, significantly improving energy efficiency and saving energy and protecting the environment. 3. The necessary dedicated water tank and complex drainage pipeline system of traditional solutions are eliminated. The entire drainage evaporation system, including pipes, drainers, and evaporation basins, is integrated into the existing equipment mounting frame, resulting in a more compact and simple structure. This saves internal space, reduces overall volume and weight, and is particularly beneficial for deployment in space-constrained compact application scenarios. IV. Through instant evaporation, liquid water will not remain in the air storage tank and drainage system for extended periods, eliminating problems such as corrosion of the tank interior, valves, and pipes, and microbial growth caused by water accumulation, thus extending equipment life and ensuring compressed air quality. V. The drainer employs a gradually expanding chamber and a spirally arranged baffle design. This reduces the flow velocity of compressed air entering the expanding chamber, while the spiral baffle further guides airflow separation. Water droplets are thrown against the chamber wall by the spiral gap, achieving efficient gas-water separation. The separated water is discharged from the bottom to the evaporation basin. Initially, almost all the discharged water is condensate. After the condensate is completely discharged, it carries gas with it. At this point, the gas enters the drainer and accumulates in the expanding chamber due to the resistance of the baffle. This gas then triggers a pressure sensor through the gas passage. The pressure sensor sends a signal back, and the electrically controlled ball valve closes the outlet pipe, stopping drainage and venting. Attached Figure Description

[0013] Figure 1 This is a perspective view of Embodiment 1 of this utility model.

[0014] Figure 2 This is a cross-sectional view of Embodiment 1 of this utility model.

[0015] Figure 3 This is an enlarged view of section A in Embodiment 1 of this utility model.

[0016] Figure 4 This is a cross-sectional view of the drainer according to Embodiment 1 of this utility model.

[0017] Figure 5 This is an axial front view of the baffle plate according to Embodiment 1 of this utility model.

[0018] Figure 6 This is a cross-sectional view of the drainer according to Embodiment 2 of this utility model.

[0019] Drawing number markings: 1. Gas tank; 101. Gas storage chamber; 102. Air inlet seat; 103. Air outlet seat; 104. Connecting hole; 2. Fixing frame; 3. Motor; 4. Machine head; 401. Air inlet; 402. Air outlet; 5. Water outlet pipe; 501. Water pipe one; 502. Water pipe two; 6. Drain; 601. Water inlet; 602. Water outlet; 603. Receiving cavity; 604. Gradually expanding cavity; 605. Baffle plate; 606. Mounting hole; 607. Air passage hole; 608. Spiral gap; 7. Evaporation basin; 8. Sealing plug; 801. Sealing hole; 9. Arch support; 10. Water pipe three; 11. Air pressure sensor; 12. Electric ball valve; 13. Float valve; 14. Isolation plate; 1401. Water passage hole; 15. Guide plate. Detailed Implementation

[0020] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0021] It should be noted that the descriptions of "up", "down", "left", "right", "top", "bottom", etc. in this utility model are defined 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 are not intended to indicate or imply that the device must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Example 1: According to Figures 1 to 5 As shown, a self-evaporating structure for an air compressor that requires no drainage includes an air tank 1 assembly, a power and stationary assembly, and a drainage evaporation assembly. The air tank 1 assembly includes an air tank 1 with an internally sealed air storage chamber 101. A connection hole 104 is opened at the top of the air tank 1, and a sealing plug 8 is fixedly installed inside the connection hole 104. The sealing plug 8 has a through sealing hole 801 in the middle, and a water outlet pipe 5 is sealed and fixed inside the sealing hole 801. One end of the water outlet pipe 5 extends into the bottom of the air tank 1, and the other end of the water outlet pipe 5 is connected to a drainer 6. Preferably, the water outlet pipe 5 is divided into two sections, including a first water pipe 501 and a second water pipe 502 that are interconnected. One end of the first water pipe 501 extends into the bottom of the air tank 1, and one end of the second water pipe 502 is connected to the drainer 6. The first water pipe 501 is made of a rigid material, and the second water pipe 502 is made of a flexible material. The rigid material of the first water pipe 501 will not bend under air pressure, allowing for better absorption of accumulated water. Water pipes made of soft material, such as 2502, are easy to install.

[0023] A power and fixing assembly is fixedly connected to the air storage tank 1. The power and fixing assembly includes a fixing frame 2 welded to the air storage tank 1, a motor 3 fixedly connected to the fixing frame 2, and a compressor head 4 fixedly connected to the motor 3. The compressor head 4 includes a crankshaft, piston, cylinder, and cylinder head. The cylinder head 4 has an air inlet 401 and an air outlet 402. The air storage tank 1 includes an air inlet seat 102 and an air outlet seat 103, with the air outlet 402 connected to the air inlet seat 102. When the air compressor is working, the motor 3 drives the crankshaft to move, causing the piston to reciprocate within the cylinder. When the piston moves downwards, a negative pressure is created within the cylinder, drawing in external air through the air inlet 401. When the piston moves upwards, the intake valve closes, the drawn-in air is compressed, and the increased pressure opens the outlet valve, allowing the compressed gas to be discharged through the outlet 402 and stored in the air storage tank 1 via a pipeline.

[0024] The drainage evaporation assembly is mainly connected to the gas storage chamber 101 through the connection hole 104 on the top of the gas storage tank 1. A water outlet pipe 5 is fixedly installed inside the connection hole 104. One end of the drainer 6 is connected to the evaporation basin 7 through the water pipe 10. The evaporation basin 7 is fixed on the gas storage tank 1 and close to the side of the motor 3. The drainer 6 is fixed to the fixing frame 2 through the arch bracket 9. The drainer 6 is higher than the top of the gas storage tank 1. A water inlet 601 is provided at the upper end of the drainer 6. A water pipe 502 is fixedly connected to the water inlet 601. A water outlet 602 is provided at the bottom end of the drainer 6. The water outlet 602 is fixedly connected to the water pipe 10. The drainer 6 has a receiving cavity 603. The inlet hole 601 is connected to the receiving cavity 603 through a gradually expanding cavity 604. A baffle plate 605 is fixedly connected inside the receiving cavity 603. The baffle plate 605 is arranged opposite to the inlet hole 601 and is located below the inlet hole 601. The inner wall of the gradually expanding cavity 604 is also provided with a mounting hole 606 and an air passage hole 607. The air passage hole 607 connects the gradually expanding cavity 604 and the mounting hole 606. A pressure sensor 11 is installed in the mounting hole 606. There are at least two baffle plates 605 arranged in a spiral. The baffle plates 605 are fixed at the connection between the gradually expanding cavity 604 and the receiving cavity 603. That is to say, the shell of the drainer 6 is set in two parts. The gradually expanding cavity 604 is in the upper shell and the receiving cavity 603 is in the lower shell. The baffle plates 605 are fixed between the upper shell and the lower shell. After the baffle plates 605 are spirally stacked, there is no axial gap. There is a spiral gap 608 between two adjacent baffle plates 605. An electrically controlled ball valve 12 is installed on the outlet pipe 5, and a pressure sensor 11 is installed on the drain 6. The pressure in the diffuser chamber 604 is monitored through the air passage 607. The electrically controlled ball valve 12 can be opened / closed instantaneously to achieve timed or on-demand drainage, preventing gas leakage caused by prolonged pipe opening. The pressure sensor 11 can monitor the pressure status inside the drain 6 in real time and feed the information back to the air compressor control system, which helps to achieve intelligent monitoring, fault warning, and optimized drainage strategy.

[0025] Utilizing the natural pressure of compressed air for drainage, the condensate collected at the bottom of the air tank 1 is guided through a pipeline system to an evaporation basin 7 fixed near the motor 3. Using the waste heat generated by the motor 3 as a heat source, the condensate is continuously and efficiently evaporated into water vapor, which is then released into the atmosphere. This completely avoids the inconvenience of manually emptying the water storage container or relying on external drainage pipes, as required by traditional solutions, achieving drainage-free and maintenance-free operation. The evaporation basin 7 is positioned near the high-heat-generating motor 3, fully utilizing the previously wasted waste heat from the motor's operation to evaporate water, eliminating the need for additional electrical or other energy consumption for evaporation, significantly improving energy efficiency and promoting energy conservation and environmental protection. The system eliminates the need for a dedicated water tank and complex drainage pipeline system required in traditional solutions. The entire drainage evaporation system, including pipes, drainer 6, and evaporation basin 7, is integrated into the existing equipment mounting frame 2, resulting in a more compact and simpler structure. This saves internal space, reduces overall size and weight, and is particularly advantageous for deployment in space-constrained, compact application scenarios. Through instant evaporation, liquid water will not remain in the air storage tank 1 and drainage system for extended periods, eliminating problems such as corrosion of the tank interior, valves, and pipes, and microbial growth caused by water accumulation, thus extending equipment life and ensuring compressed air quality. The drainer 6 employs a gradually expanding cavity 604 and a spirally arranged baffle 605. This design reduces the flow velocity of compressed air entering the gradually expanding cavity 604, while the spiral baffle 605 further guides airflow separation. Water droplets are thrown against the cavity wall and flow down using the spiral gap 608, achieving efficient gas-water separation. The separated water is discharged from the bottom to the evaporation basin 7. Initially, almost all the discharged water is condensate. After the condensate is completely discharged, it carries gas with it. At this point, the gas enters the drainer 6 and is resisted by the baffle 605, accumulating in the gradually expanding cavity 604. It then triggers the pressure sensor through the air passage 607. After the pressure sensor sends a signal, the electrically controlled ball valve 12 closes the water outlet pipe 5 to stop drainage and exhaust.

[0026] Example 2: According to Figure 6 As shown, unlike Embodiment 1, this drainer 6 uses a float valve for control. The upper end of the drainer 6 has an inlet 601, with the outlet pipe 5 fixedly connected to the inlet 601. The bottom end of the drainer 6 has an outlet 602, which is fixedly connected to the water pipe 10. A float valve 13 is installed inside the drainer 6, controlling the opening and closing of the outlet 602. When the water level in the drainer 6 reaches a certain height, the float valve rises with the water level, opening the outlet and draining the water; when the water level drops, the float valve falls, closing the drain. This achieves automatic closure when there is no water to prevent gas leakage and automatic opening when there is water, requiring no manual intervention.

[0027] In the above-mentioned self-evaporating structure of an air compressor without drainage, an isolation plate 14 and a guide plate 15 are also provided on the inner wall of the drainer 6. The isolation plate 14 has a water passage hole 1401 in the middle. The isolation plate 14 is located between the guide plate 15 and the water outlet hole 602. The float valve 13 is close to or away from the water passage hole 1401.

[0028] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection defined by the claims of the present utility model.

Claims

1. A self-evaporating structure for an air compressor that requires no drainage, comprising an air tank (1) with a closed internal air storage chamber (101), a fixed frame (2) fixedly connected to the air tank (1), a motor (3) fixedly connected to the fixed frame (2), a motor (3) fixedly connected to the motor (3), a motor head (4) being provided with an air inlet (401) and an air outlet (402) on the motor head (4), the air tank (1) comprising an air inlet seat (102) and an air outlet seat (103), the air outlet (402) and the air inlet seat (102) being connected, characterized in that: The top of the gas storage tank (1) is provided with a connection hole (104), which is connected to the gas storage chamber (101). A water outlet pipe (5) is fixedly installed in the connection hole (104). One end of the water outlet pipe (5) extends into the bottom of the gas storage tank (1), and the other end of the water outlet pipe (5) is connected to a drainer (6). One end of the drainer (6) is connected to an evaporator (7) through a water pipe (10). The evaporator (7) is fixed on the gas storage tank (1) and close to the side of the motor (3).

2. The self-evaporating structure for an air compressor without drainage according to claim 1, characterized in that: A sealing plug (8) is fixedly installed inside the connection hole (104). The sealing plug (8) has a through sealing hole (801) in the middle. A water outlet pipe (5) is sealed and fixed inside the sealing hole (801).

3. The self-evaporating structure for an air compressor without drainage according to claim 2, characterized in that: The water outlet pipe (5) includes a first water pipe (501) and a second water pipe (502) that are connected to each other. One end of the first water pipe (501) extends into the bottom of the gas storage tank (1), and one end of the second water pipe (502) is connected to the drain (6). The first water pipe (501) is made of rigid material, and the second water pipe (502) is made of soft material.

4. The self-evaporating structure for an air compressor without drainage according to claim 3, characterized in that: The drainer (6) is fixed to the fixed frame (2) by the arch support (9), and the drainer (6) is higher than the top of the gas storage tank (1).

5. The self-evaporating structure for an air compressor without drainage according to claim 3 or 4, characterized in that: The drainer (6) is provided with an inlet hole (601) at the upper end, and the second water pipe (502) is fixedly connected to the inlet hole (601). The drainer (6) is provided with an outlet hole (602) at the bottom end, and the outlet hole (602) is fixedly connected to the third water pipe (10).

6. The self-evaporating structure for an air compressor without drainage according to claim 5, characterized in that: The drainer (6) has a receiving cavity (603). The water inlet (601) is connected to the receiving cavity (603) through a gradually expanding cavity (604). A baffle plate (605) is fixedly connected in the receiving cavity (603). The baffle plate (605) is arranged opposite to the water inlet (601) and located below the water inlet (601). The inner wall of the gradually expanding cavity (604) is also provided with an installation hole (606) and an air passage hole (607). The air passage hole (607) connects the gradually expanding cavity (604) and the installation hole (606). A pressure sensor (11) is installed in the installation hole (606). There are at least two baffle plates (605) arranged in a spiral. After the baffle plates (605) are spirally stacked, there is no axial gap. There is a spiral gap (608) between two adjacent baffle plates (605).

7. The self-evaporating structure for an air compressor without drainage according to claim 1, characterized in that: The drainer (6) is provided with an inlet hole (601) at the upper end, and the outlet pipe (5) is fixedly connected to the inlet hole (601). The drainer (6) is provided with an outlet hole (602) at the bottom end, and the outlet hole (602) is fixedly connected to the water pipe (10). The drainer is provided with a float valve (13), and the float valve (13) controls the opening and closing of the outlet hole (602).

8. The self-evaporating structure for an air compressor without drainage according to claim 7, characterized in that: The drainer (6) is also provided with an isolation plate (14) and a guide plate (15) on its inner wall. The isolation plate (14) has a water passage hole (1401) in the middle. The isolation plate is located between the guide plate and the water outlet hole. The float valve is either close to or away from the water passage hole.

Images