Oilless air compressor integrated with self-drainage system

Abstract

The oilless air compressor comprises an air compressor body, a water storage bin is arranged at the bottom of the air compressor body, the interior of the water storage bin communicates with the interior of the air compressor body, a first water drainage pipe is arranged at the position, close to the bottom wall, of one wall face of the water storage bin, and a second water drainage pipe is arranged at the position, close to the bottom wall, of the other wall face of the water storage bin. The interior of the first drainage pipe communicates with the interior of the water storage bin. A pipeline I is externally connected to the drain pipe I, and an electrically operated valve I is connected to the pipeline I; a first liquid level sensor and a second liquid level sensor are arranged on the inner wall of the water storage bin, the first liquid level sensor is higher than the second liquid level sensor, the first liquid level sensor and the second liquid level sensor are both electrically connected with the first electric valve, and a pressure reducing valve is connected between the first drainage pipe and the first electric valve. The drainer comprises a top cover, a water storage cylinder and a bottom seal; the two ends of the water storage cylinder are blocked through the top cover and the bottom seal, and automatic drainage of the oilless air compressor is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of air compressor drainage, in particular to an oil-free air compressor with an integrated self-draining system. Background Art

[0002] With the continuous development of industrial technology, the quality requirements for compressed air are getting higher and higher. Oil-free air compressors are widely used in industries with strict requirements on air quality, such as food, medicine, and electronics, because they do not produce oil pollution during the compression process.

[0003] In the process of generating compressed air, the moisture in the air will condense into liquid water as it is compressed. If this moisture is not removed in time, it will have a serious impact on the equipment and production process. Moisture may cause pipeline corrosion, equipment damage, affect the normal operation of pneumatic tools and equipment, and reduce production efficiency and product quality.

[0004] To solve this problem, oil-free air compressors with integrated self-draining systems came into being. This type of air compressor is designed with advanced technology to automatically detect and remove moisture from compressed air. It uses sensors to monitor the humidity and water level of compressed air in real time. When certain drainage conditions are reached, the drainage device is automatically activated to drain the moisture out of the system. This ensures that the compressed air is always kept dry and clean, improving the reliability and stability of the equipment.

[0005] Compared with traditional oil-free air compressors, oil-free air compressors with integrated self-draining systems have significant advantages. It does not require manual intervention in the drainage process, saving labor costs and time, and improving work efficiency. At the same time, the automatic drainage system can more accurately control the timing of drainage, avoiding the problem of residual moisture caused by untimely or inaccurate manual operation.

[0006] However, most existing oil-free air compressors use manual drainage, which is inefficient and cumbersome to operate. Operators need to regularly check and drain the moisture in the air tank, which not only increases the workload but also easily leads to omissions or untimely drainage. Moreover, manual drainage cannot guarantee the accuracy and stability of drainage, which may affect the quality of compressed air. Summary of the invention

[0007] Based on the above problems existing in the prior art, the purpose of the embodiments of the present invention is to provide an oil-free air compressor with an integrated self-draining system to achieve automatic drainage of the oil-free air compressor.

[0008] The technical solution adopted by the present invention to solve the technical problem is: an oil-free air compressor with an integrated self-draining system comprises an air compressor body, a water storage tank is provided at the bottom of the air compressor body, the interior of the water storage tank is connected with the interior of the air compressor body, a drainage pipe 1 is provided near the bottom wall of one wall of the water storage tank, and the interior of the drainage pipe 1 is connected with the interior of the water storage tank; The drainage pipe 1 is externally connected to a pipe 1, and the pipe 1 is connected to an electric valve 1; A liquid level sensor 1 and a liquid level sensor 2 are provided on the inner wall of the water storage tank. The liquid level sensor 1 is arranged higher than the liquid level sensor 2, and the liquid level sensor 1 and the liquid level sensor 2 are both electrically connected to the electric valve 1.

[0009] Furthermore, a pressure reducing valve is connected between the drain pipe 1 and the electric valve 1.

[0010] Further, a drainer is included, the drainer including a top cover, a water storage cylinder and a bottom seal; The top cover and the bottom seal block the two ends of the water storage cylinder. A water inlet pipe and two drain pipes are symmetrically arranged on both sides of the water storage cylinder. A pipeline two is connected between the water inlet pipe and the electric valve one.

[0011] Furthermore, two symmetrical gusset plates are provided at the bottom of the air compressor body; A boss is provided on both sides of the top cover of the drainer, and the boss faces the direction of the water storage cylinder. The top cover is arranged between the two buckle plates, and the inner side wall of the boss abuts against the end of the buckle plate.

[0012] Furthermore, a filter is provided on the bottom seal, and the filter is located at the inner end of the water inlet pipe.

[0013] Furthermore, a buckle is provided on the bottom seal, and the bottom wall of the filter is embedded in the buckle.

[0014] Furthermore, a partition is provided in the water storage cylinder, and the partition separates the cavity of the water storage cylinder near the top cover to form a wiring cavity.

[0015] Furthermore, a water level column is provided at one end of the partition away from the wiring cavity, and a liquid level sensor three and a liquid level sensor four are provided on the water level column. The liquid level sensor three is arranged higher than the liquid level sensor four. The drain pipe two is externally connected to a pipe three, and an electric valve two is connected to the pipe three. The liquid level sensor three and the liquid level sensor four are both electrically connected to the electric valve two.

[0016] How to use the oil-free air compressor with integrated self-draining system, the specific steps are as follows: S1, when the water level in the water storage tank reaches the liquid level sensor, the electric valve opens, and the liquid in the water storage tank flows into the water storage cylinder along the pipeline; S2, when the water level in the water storage tank reaches the liquid level sensor 2, the electric valve 1 is closed; S3, the liquid entering the water storage cylinder accumulates in the water storage cylinder after passing through the filter. When the liquid level reaches the liquid level sensor 3, the electric valve 2 opens and the liquid is discharged from the drain pipe 2; S4. When the liquid level drops to the level sensor, the electric valve 2 is closed.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The water storage tank added at the bottom of the air compressor body is used to accumulate condensed water generated inside the air compressor body. The condensed water gradually accumulates in the water storage tank until the water level reaches the liquid level sensor 1. The electric valve 1 opens, and the condensed water flows from the drainage pipe 1 through the pipeline 1 into the water storage cylinder. In this process, the pressure is reduced by the pressure reducing valve, so that the pressure of the condensed water is stable when it flows into the pipeline 1. When the water level of the condensed water drops to the liquid level sensor 2, the electric valve is closed, so that some condensed water is accumulated in the water storage tank. The accumulated condensed water blocks the drainage pipe 1 to prevent compressed air from entering the drainage pipe 1. 2. After the condensed water flows into the water storage cylinder, it is filtered by the filter and then accumulated in the water storage cylinder. When the condensed water level accumulates to the liquid level sensor 3, the electric valve 2 opens, and the liquid is discharged from the drain pipe 2. When the liquid level drops to the liquid level sensor 4, the electric valve 2 closes, completing the automatic discharge of the condensed water, and the retained condensed water blocks the water inlet pipe, which can prevent compressed air from entering the water storage cylinder, adding an insurance for the blocking of compressed air; 3. The bottom seal is detachably installed at the bottom of the water storage cylinder. When there are too many impurities in the filter, it is convenient to remove the bottom seal and the filter together, and then replace the new filter, and then reinstall the bottom seal to the bottom of the water storage cylinder to complete the replacement of the filter; 4. Compared with traditional oil-free air compressors, oil-free air compressors with integrated self-draining systems have significant advantages. It does not require manual intervention in the drainage process, saving labor costs and time, and improving work efficiency. At the same time, the automatic drainage system can more accurately control the timing of drainage, avoiding the problem of residual moisture caused by untimely or inaccurate manual operation; 5. The bottom seal is connected to the water storage cylinder by threaded engagement, and a mark is set on the bottom of the bottom seal and the side wall of the water storage cylinder. When the bottom seal is tightly engaged with the water storage cylinder, it is rotated continuously until the two marks coincide with each other, that is, the bottom seal is engaged to the end, and the filter on it is aligned with the water inlet pipe, which can smoothly filter the condensed water entering the water inlet pipe; 6. A bayonet pin can be added at the top edge of the bottom seal, and a slot matching the bayonet pin can be opened on the inner side of the bottom end of the water storage cylinder. The bottom seal can be quickly installed on the water storage cylinder at the correct angle so that the filter is aligned with the water inlet pipe. The condensed water entering the water inlet pipe can be filtered smoothly. A sealing ring can be added between the bottom seal and the water storage cylinder to avoid water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] In the figure: Figure 1 is a cross-sectional view of the air compressor body in the present invention; Figure 2 yes Figure 1 An enlarged schematic diagram of part A in FIG. Figure 3 It is a three-dimensional schematic diagram of the drainer in the present invention; Figure 4 yes Figure 3 A cross-sectional view of the drain in FIG. Figure 5 yes Figure 3 Schematic diagram of the self-drainage system in; In the figure: 1. Air compressor body; 11. Water storage tank; 12. Buckle plate; 111. Drain pipe 1; 112. Liquid level sensor 1; 113. Liquid level sensor 2; 2. Drainer; 21. Top cover; 22. Water storage cylinder; 23. Bottom seal; 211, boss; 220, wiring cavity; 221, boss; 222, drain pipe 2; 223, water level column; 231, buckle; 232, filter; 2231. Liquid level sensor three; 2232. Liquid level sensor four. DETAILED DESCRIPTION

[0020] The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, and therefore only shows the components related to the present invention.

[0021] See also Figure 1-5 , the present invention provides a technical solution: An oil-free air compressor with an integrated self-draining system comprises an air compressor body 1 and a drainer 2.

[0022] A water storage tank 11 is provided at the bottom of the air compressor body 1 , and two symmetrical buckle plates 12 are provided at the bottom of the air compressor body 1 .

[0023] A liquid level sensor 1 112 and a liquid level sensor 2 113 are provided on the inner wall of the water storage tank 11 , and the liquid level sensor 1 112 is arranged higher than the liquid level sensor 2 113 .

[0024] The interior of the water storage tank 11 is connected with the interior of the air compressor body 1. A drain pipe 111 is provided near the bottom wall of one of the walls of the water storage tank 11. The interior of the drain pipe 111 is connected with the interior of the water storage tank 11. The drain pipe 111 is externally connected to a pipe 1, an electric valve 1 is connected to the pipe 1, and a pressure reducing valve is connected between the drain pipe 111 and the electric valve 1.

[0025] Liquid level sensor 1 112 and liquid level sensor 2 113 are both electrically connected to electric valve 1.

[0026] The drainer 2 includes a top cover 21 , a water storage cylinder 22 and a bottom seal 23 .

[0027] A boss 211 is provided on both sides of the top cover 21 of the drainer 2 . The boss 211 faces the direction of the water storage cylinder 22 . The top cover 21 is disposed between the two buckle plates 12 , and the inner side wall of the boss 211 abuts against the end of the buckle plate 12 .

[0028] A partition is provided in the water storage cylinder 22, which separates the cavity of the water storage cylinder 22 near the top cover 21 to form a wiring cavity 220. A water level column 223 is provided at one end of the partition away from the wiring cavity 220. A liquid level sensor 3 2231 and a liquid level sensor 4 2232 are provided on the water level column 223. The liquid level sensor 3 2231 is arranged higher than the liquid level sensor 4 2232. The drain pipe 222 is externally connected to the pipeline 3. The pipeline 3 is connected to the electric valve 2. The liquid level sensor 3 2231 and the liquid level sensor 4 2232 are both electrically connected to the electric valve 2.

[0029] The top cover 21 and the bottom seal 23 seal the two ends of the water storage cylinder 22. The two sides of the water storage cylinder 22 are symmetrically provided with a water inlet pipe 221 and a drain pipe 222. A pipe 2 is connected between the water inlet pipe 221 and the electric valve 1. A filter 232 is provided on the bottom seal 23. The filter 232 is located at the inner end of the water inlet pipe 221. A buckle 231 is provided on the bottom seal 23. The bottom wall of the filter 232 is embedded in the buckle 231.

[0030] How to use the oil-free air compressor with integrated self-draining system, the specific steps are as follows: S1, when the water level in the water storage tank 11 reaches the liquid level sensor 112, the electric valve 1 opens, and the liquid in the water storage tank 11 flows into the water storage cylinder 22 along the pipeline 1; S2, when the water level in the water storage tank 11 reaches the liquid level sensor 2 113, the electric valve 1 is closed; S3, the liquid entering the water storage cylinder 22 is accumulated in the water storage cylinder 22 after passing through the filter 232. When the liquid level in the water storage cylinder 22 reaches the liquid level sensor 3 2231, the electric valve 2 opens, and the liquid is discharged from the drain pipe 2 222; S4. When the liquid level drops to position 2232 of liquid level sensor 4, electric valve 2 is closed. Example

[0031] The water storage tank 11 added at the bottom of the air compressor body 1 is used to accumulate condensed water generated inside the air compressor body 1. The condensed water is gradually accumulated in the water storage tank 11 until the water level reaches the liquid level sensor 112. The electric valve is opened, and the condensed water flows from the drain pipe 111 through the pipe 1 into the water storage cylinder 22. In this process, the pressure is reduced by the pressure reducing valve, so that the pressure of the condensed water is stable when it flows into the pipe 1. When the water level of the condensed water drops to the liquid level sensor 2 113, the electric valve is closed, so that some condensed water is accumulated in the water storage tank 11. The accumulated condensed water blocks the drain pipe 111 to prevent compressed air from entering the drain pipe 111.

[0032] After the condensed water flows into the water storage cylinder 22, it is filtered by the filter 232 and then accumulated in the water storage cylinder 22. When the water level of the condensed water accumulates to the liquid level sensor three 2231, the electric valve two opens, and the liquid is discharged from the drain pipe two 222. When the liquid level drops to the liquid level sensor four 2232, the electric valve two closes, completing the automatic discharge of the condensed water, and the retained condensed water blocks the water inlet pipe 221, which can prevent compressed air from entering the water storage cylinder 22, adding an insurance for the blocking of compressed air. Example

[0033] The bottom seal 23 is detachably installed at the bottom of the water storage barrel 22. When there are too many impurities in the filter 232, the bottom seal 23 and the filter 232 can be removed together, and then a new filter 232 can be replaced. The bottom seal 23 is then reinstalled to the bottom of the water storage barrel 22 to complete the replacement of the filter 232.

[0034] In some of the embodiments, the bottom seal 23 is connected to the water storage cylinder 22 by threaded engagement, and a marking position is provided on the bottom of the bottom seal 23 and the side wall of the water storage cylinder 22. When the bottom seal 23 is tightly engaged with the water storage cylinder 22, it is continuously rotated until the two markings coincide with each other, that is, the bottom seal 23 is engaged to the end, and the filter 232 thereon is aligned with the water inlet pipe 221, so that the condensed water entering the water inlet pipe 221 can be smoothly filtered.

[0035] In some of the embodiments, a pin can be added at the top edge of the bottom seal 23, and a slot compatible with the pin can be opened on the inner side of the bottom end of the water storage cylinder 22, so that the bottom seal 23 can be quickly installed on the water storage cylinder 22 at the correct angle, so that the filter 232 is aligned with the water inlet pipe 221, and the condensed water entering the water inlet pipe 221 can be smoothly filtered. A sealing ring can be added between the bottom seal 23 and the water storage cylinder 22 to avoid water leakage.

[0036] Compared with traditional oil-free air compressors, oil-free air compressors with integrated self-draining systems have significant advantages. It does not require manual intervention in the drainage process, saving labor costs and time, and improving work efficiency. At the same time, the automatic drainage system can more accurately control the timing of drainage, avoiding the problem of residual moisture caused by untimely or inaccurate manual operation.

[0037] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the scope of the present invention through the above description. The technical scope of this invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. Oil-free air compressor with integrated self-draining system, characterized by: It comprises an air compressor body (1), a water storage tank (11) is provided at the bottom of the air compressor body (1), the interior of the water storage tank (11) is connected to the interior of the air compressor body (1), a drainage pipe (111) is provided on one of the walls of the water storage tank (11) near the bottom wall, the interior of the drainage pipe (111) is connected to the interior of the water storage tank (11); The drainage pipe 1 (111) is externally connected to a pipeline 1, and the pipeline 1 is connected to an electric valve 1; A liquid level sensor 1 (112) and a liquid level sensor 2 (113) are provided on the inner wall of the water storage tank (11), the liquid level sensor 1 (112) is arranged higher than the liquid level sensor 2 (113), and the liquid level sensor 1 (112) and the liquid level sensor 2 (113) are both electrically connected to the electric valve 1.

2. The oil-free air compressor with integrated self-draining system according to claim 1, characterized in that: A pressure reducing valve is connected between the drainage pipe 1 (111) and the electric valve 1.

3. The oil-free air compressor with integrated self-draining system according to claim 2, characterized in that: The drainer (2) comprises a top cover (21), a water storage cylinder (22) and a bottom seal (23); The top cover (21) and the bottom seal (23) seal the two ends of the water storage cylinder (22); a water inlet pipe (221) and a second water discharge pipe (222) are symmetrically provided on both sides of the water storage cylinder (22); a second pipe is connected between the water inlet pipe (221) and the first electric valve.

4. The oil-free air compressor with integrated self-draining system according to claim 3, characterized in that: The bottom of the air compressor body (1) is provided with two symmetrical buckle plates (12); A boss (211) is provided on both sides of the top cover (21) of the drainer (2), the boss (211) faces the direction of the water storage cylinder (22), the top cover (21) is arranged between the two buckle plates (12), and the inner side wall of the boss (211) abuts against the end of the buckle plate (12).

5. The oil-free air compressor with integrated self-draining system according to claim 4, characterized in that: A filter (232) is provided on the bottom seal (23), and the filter (232) is located at the inner end of the water inlet pipe (221).

6. The oil-free air compressor with integrated self-draining system according to claim 5, characterized in that: The bottom seal (23) is provided with a buckle (231), and the bottom wall of the filter (232) is embedded in the buckle (231).

7. The oil-free air compressor with integrated self-draining system according to claim 6, characterized in that: A partition is provided in the water storage cylinder (22), and the partition separates the cavity of the water storage cylinder (22) near the top cover (21) to form a wiring cavity (220).

8. The oil-free air compressor with integrated self-draining system according to claim 7, characterized in that: A water level column (223) is provided at one end of the partition away from the wiring cavity (220), and a liquid level sensor 3 (2231) and a liquid level sensor 4 (2232) are provided on the water level column (223), and the liquid level sensor 3 (2231) is arranged higher than the liquid level sensor 4 (2232), and the drain pipe 2 (222) is externally connected to the pipe 3, and the pipe 3 is connected to the electric valve 2, and the liquid level sensor 3 (2231) and the liquid level sensor 4 (2232) are both electrically connected to the electric valve 2.

9. The method for using the oil-free air compressor with integrated self-draining system according to claim 8, comprising the following specific steps: S1, when the water level in the water storage tank (11) reaches the liquid level sensor 1 (112), the electric valve 1 opens, and the liquid in the water storage tank (11) flows into the water storage cylinder (22) along the pipeline 1; S2, when the water level in the water storage tank (11) reaches the second liquid level sensor (113), the electric valve 1 is closed; S3, the liquid entering the water storage cylinder (22) is accumulated in the water storage cylinder (22) after passing through the filter (232). When the liquid level therein reaches the liquid level sensor three (2231), the electric valve two is opened, and the liquid is discharged from the drain pipe two (222); S4. When the liquid level drops to liquid level sensor four (2232), electric valve two is closed.

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