A compressed air storage tank

Abstract

The invention discloses a compressed air storage tank, which relates to the technical field of air compression tanks, including a sponge round block, which is used for absorbing accumulated water in a circular tank body until the absorbed accumulated water slowly overflows from the bottom when it is in a saturated state. An annular through hole is opened on the top of the sponge round block, a reset spring is fixedly connected to the inner wall of the annular through hole, a cross pressure rod is fixedly connected to the top of the reset spring, and a bottom circular plate is fixedly connected to the bottom of the reset spring. The compressed air storage tank absorbs the accumulated water and slowly discharges it in a saturated overflow manner by arranging the sponge round block at the bottom of the bottom circular hole, thereby preventing a part of the gas from being discharged at the same time when the accumulated water is discharged, resulting in a large amount of air being lost in the air storage tank after multiple drainages. A plurality of sponge round blocks are arranged in an annular cylinder to reduce the air permeability of the sponge round blocks, thereby preventing compressed air from slowly overflowing to the outside through the sponge round blocks when less water is accumulated in the circular tank body, thereby preventing air leakage.

Description

Technical Field

[0001] The invention relates to the technical field of compressed air tanks, and in particular to a compressed air storage tank. Background Art

[0002] Compressed air storage tank is a container for storing compressed air, usually made of metal materials such as carbon steel, stainless steel, etc., with sufficient strength and pressure resistance. The shape of the tank is generally cylindrical or spherical to withstand the internal pressure. Air storage tank refers to a tank-shaped storage device for storing air. There is moisture in the air. When the air containing moisture is compressed and heated, due to the increase in air density, some water will precipitate. When the tank wall is cooled, it will be adsorbed on the tank wall. Therefore, air storage tanks generally have a water drain switch. Storage equipment is also called storage tanks, which mainly refers to equipment used to store or contain gas, liquid, liquefied gas and other media. It is widely used in chemical, petroleum, energy, light industry, environmental protection, pharmaceutical and food industries;

[0003] Existing air storage tanks are equipped with corresponding drainage structures to discharge the gradually accumulated water. However, the accumulated water and air in the air storage tank are stored in the air storage tank at the same time. When discharging the accumulated water, it is inevitable that some gas will be discharged at the same time, resulting in a large amount of air lost in the air storage tank after multiple drainages. Therefore, we propose a compressed air storage tank. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a compressed air storage tank, comprising:

[0005] A circular tank body, wherein an air inlet pipe is arranged on the outer side of the circular tank body;

[0006] A drainage device, which absorbs the accumulated water and slowly discharges it, to prevent a large amount of air from being lost in the air storage tank after multiple drainages due to the simultaneous discharge of part of the gas when the accumulated water is discharged;

[0007] A squeezing device, which accelerates the drainage speed of the drainage device by pushing and squeezing, to prevent the speed of water discharge from being lower than the speed of water accumulation in the tank, which causes excessive water accumulation in the tank and affects air storage. A motor is provided at the bottom of the squeezing device;

[0008] The outer surface of the circular tank body is connected to the air outlet of the air inlet pipe, the bottom of the circular tank body is fixedly connected to the top of the drainage device, the top of the extrusion device is rotatably connected to the inner wall of the circular tank body through a rotating bolt, the bottom of the extrusion device is fixedly connected to the driving shaft of the motor, and the output end of the motor is fixedly connected to the bottom of the circular tank body;

[0009] Wherein, the drainage device comprises:

[0010] The sponge round block is used to absorb the accumulated water in the circular tank until the absorbed accumulated water slowly overflows from the bottom when it reaches the saturated state. The sponge round block is arranged at the bottom of the circular hole to absorb the accumulated water and slowly discharge it in a saturated overflow manner, so as to prevent a part of the gas from being discharged at the same time when the accumulated water is discharged, resulting in a large amount of air loss in the air storage tank after multiple drainages. Multiple sponge round blocks are arranged in the annular cylinder to reduce the air permeability of the sponge round blocks, so as to prevent the compressed air from slowly overflowing to the outside through the sponge round blocks when there is less water accumulated in the circular tank, causing air leakage;

[0011] The outer surface of the circular tank body is fixedly connected with an arc-shaped support rod, the outer side of the circular tank body is connected with an air outlet pipe, the inner wall of the circular tank body is provided with a built-in arc groove, and the bottom of the circular tank body is provided with a bottom-opening circular hole;

[0012] There are three arc-shaped struts, and the three arc-shaped struts are evenly distributed on the outer surface of the circular tank body; there are two built-in arc grooves, and the two built-in arc grooves are evenly distributed on the inner wall of the circular tank body; the inner wall of the built-in arc groove is slidably connected to the outer side of the extrusion device; there are four bottom-opened circular holes, and the four bottom-opened circular holes are evenly distributed on the bottom of the circular tank body;

[0013] An annular through hole is provided on the top of the sponge round block, and a return spring is fixedly connected to the inner wall of the annular through hole. When the return spring pushes the cross pressure rod to move back upward, the multiple sponge round blocks are driven to expand and recover to the initial state, so as to prevent the sponge round block from being difficult to expand and recover to the initial state after being compressed by the extrusion force for a long time to fully absorb the accumulated water. The top of the return spring is fixedly connected to the cross pressure rod, and the bottom of the return spring is fixedly connected to the bottom circular plate. The top of the bottom circular plate is provided with a drainage circular hole. By observing whether the accumulated water continues to fall in the annular cylinder, it can be judged whether the accumulated water in the circular tank body is accumulating all the time, so as to prevent the inability to judge the water accumulation situation inside the circular tank body and to make corresponding drainage measures to affect the air storage. The outer side of the bottom circular plate is sleeved and fixedly connected with an annular cylinder;

[0014] The top of the annular cylinder is fixedly connected to the bottom of the circular tank body, and a plurality of the sponge round blocks are provided, and the plurality of the sponge round blocks are evenly distributed on the inner wall of the annular cylinder;

[0015] The top of the sponge round block is fixedly connected to the bottom of the cross pressure rod, and the bottom of the sponge round block is fixedly connected to the top of the bottom circular plate.

[0016] Furthermore, the extrusion device comprises a threaded long rod, the outer surface of the threaded long rod is sleeved and threadedly connected with a filtering mechanism, the bottom of the filtering mechanism is fixedly connected with an inner oblique ring plate, the outer surface of the inner oblique ring plate is fixedly connected with a bottom connecting rod, the bottom of the bottom connecting rod is fixedly connected with a circular pressing block, and the multiple sponge round blocks are compressed and drained by pushing the circular pressing block to prevent the speed of water discharge from being lower than the speed of water accumulation in the tank body, resulting in excessive water accumulation in the tank body and affecting air storage, and the bottom round hole is blocked by setting the diameter of the circular pressing block equal to the diameter of the bottom circular hole when pushing, so as to prevent part of the water from overflowing upward into the circular tank body when the sponge round blocks are compressed and drained by pushing the cross pressure rod, and the outer surface of the threaded long rod is fixedly connected with an arc The arc-shaped scraper makes the pushed accumulated water flow along the arc path to the same circumference line as the bottom circular hole through the arc-shaped setting of the arc-shaped scraper, thereby preventing a part of the accumulated water from accumulating at the bottom of the inner wall of the circular tank body and failing to enter the bottom circular hole to be absorbed and discharged. The accumulated water is pushed by setting a hard metal scraper that can be deformed and restored to its original shape, thereby preventing the circular pressure block from colliding with the bottom connecting rod and getting stuck when entering the bottom circular hole. The top of the threaded long rod is rotatably connected to the inner wall of the circular tank body by a rotating bolt, and the outer side of the filtering mechanism is slidably connected to the inner wall of the built-in arc groove. Four bottom connecting rods are provided, and the four bottom connecting rods are evenly distributed on the outer surface of the inner oblique ring plate. Four arc-shaped scrapers are provided, and the four arc-shaped scrapers are evenly distributed on the outer surface of the threaded long rod.

[0017] Furthermore, the filter mechanism comprises a filter plate, the top of the filter plate is provided with an outer oblique filter hole, and the stored compressed air is filtered for impurities through the outer oblique filter hole to prevent the impurities in the compressed air from contacting and adhering to each other and being difficult to handle. A plurality of outer oblique filter holes with outwardly expanding apertures are provided to cover the surface area of ​​the filter plate so that accumulated water can enter the outer oblique filter holes, and a large amount of accumulated water scraped off by the annular scraper is prevented from adhering to the position of the filter plate where no filter hole is provided and being difficult to flow downward to the bottom of the inner wall of the circular tank for unified collection and treatment. An arc-shaped block is fixedly connected to the outer surface of the filter plate, and an annular scraper is fixedly connected to the top of the filter plate. When the annular scraper moves, it scrapes and cleans the inner wall of the circular tank at all times, so as to prevent a large amount of moisture generated by the compressed air from being The impurities attached to the inner wall of the circular tank are difficult to be collected and processed in a unified manner. The top of the filter plate is fixedly connected with an annular sponge block. The annular sponge block is arranged on the filter plate to surround and cover the surface of the threaded long rod above the filter plate to prevent the impurities filtered out of the filter plate from continuously adhering to the outer surface of the threaded long rod and accumulating for a long time, thereby affecting the thread fit of the threaded long rod. The outer side of the arc-shaped clamping block is slidably connected to the inner wall of the built-in arc groove, the filter plate is sleeved on the threaded long rod and threadedly connected to the threaded long rod, the bottom of the filter plate is fixedly connected to the top of the inner oblique ring plate, two arc-shaped clamping blocks are provided, and the two arc-shaped clamping blocks are evenly distributed on the outside of the filter plate, and a plurality of outer oblique filter holes are provided, and the plurality of outer oblique filter holes are evenly distributed on the filter plate.

[0018] The present invention has the beneficial effects:

[0019] 1. The present invention arranges a sponge round block at the bottom of the circular hole to absorb the accumulated water and slowly discharge it in a saturated overflow manner, thereby preventing a portion of gas from being discharged simultaneously when the accumulated water is discharged, resulting in a large amount of air being lost in the air storage tank after multiple drainages. The multiple sponge round blocks are compressed and drained by the pushing of the circular pressing block, thereby preventing the accumulated water from being discharged at a speed lower than the speed of water accumulation in the tank body, resulting in excessive water accumulation in the tank body affecting air storage. Impurities are filtered out of the stored compressed air through the external inclined filter holes, thereby preventing impurities in the compressed air from contacting with the generated water and adhering to each other and being difficult to handle.

[0020] 2. The present invention provides a drainage device, and arranges a sponge ball at the bottom of the circular hole to absorb the accumulated water and slowly discharge it in a saturated overflow manner, so as to prevent a part of the gas from being discharged simultaneously when the accumulated water is discharged, resulting in a large amount of air loss in the air storage tank after multiple drainages. A plurality of sponge balls are arranged in the annular cylinder to reduce the air permeability of the sponge balls, so as to prevent the compressed air from slowly overflowing to the outside through the sponge balls when there is less accumulated water in the circular tank and causing air leakage. By observing whether the accumulated water continues to fall in the annular cylinder, it can be judged whether the accumulated water in the circular tank has been accumulating, so as to prevent the inability to judge the accumulated water situation in the circular tank and make it difficult to take corresponding drainage measures, which affects the air storage. When the cross pressure rod is pushed upward by the reset spring, the plurality of sponge balls are driven to expand and recover to the initial state, so as to prevent the sponge balls from being difficult to expand and recover to the initial state after being compressed by the extrusion force for a long time and fully absorbing the accumulated water.

[0021] 3. The present invention provides an extrusion device to compress and drain multiple sponge round blocks through the pushing of circular pressing blocks, so as to prevent the speed of accumulated water discharge from being lower than the speed of water accumulation in the tank body, resulting in excessive water accumulation in the tank body and affecting air storage; by setting the diameter of the circular pressing block to be equal to the diameter of the bottom circular hole, it is convenient to seal the bottom circular hole during pushing, so as to prevent part of the water from overflowing upward into the circular tank body when the sponge round blocks are compressed and drained by pushing the cross pressure rod; the arc-shaped scraper blade is set to make the pushed accumulated water flow along the arc path to the same circumference as the bottom circular hole, so as to prevent part of the accumulated water from accumulating at the bottom of the inner wall of the circular tank body and failing to enter the bottom circular hole to be absorbed and discharged; a hard metal scraper blade that can be deformed and restored to its original shape is set to push the accumulated water, so as to prevent the scraper blade of the circular pressing block from colliding with the bottom connecting rod and getting stuck when entering the bottom circular hole.

[0022] 4. The present invention sets a filtering mechanism to filter impurities from the stored compressed air through external oblique filter holes, thereby preventing impurities in the compressed air from contacting and adhering to the generated moisture and becoming difficult to handle; the annular scraper scrapes and cleans the inner wall of the circular tank at all times when moving, thereby preventing a large amount of moisture generated by the compressed air from adhering to the inner wall of the circular tank and becoming difficult to collect and handle in a unified manner; a plurality of external oblique filter holes with outwardly expanding apertures are set to cover the surface area of ​​the filter plate so that accumulated water can enter the external oblique filter holes, thereby preventing a large amount of accumulated water scraped off by the annular scraper from adhering to the position of the filter plate where no filter holes are set and becoming difficult to flow downward to the bottom of the inner wall of the circular tank for unified collection and handling; an annular sponge block is set on the filter plate to surround and cover the position of the surface of the threaded long rod above the filter plate, thereby preventing impurities filtered out on the filter plate from continuously adhering to the outer surface of the threaded long rod and accumulating for a long time to affect the thread fit of the threaded long rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a schematic diagram of the internal structure of the compressed air storage tank of the present invention;

[0024] Figure 2 This is a schematic diagram of the bottom structure of the compressed air storage tank of the present invention;

[0025] Figure 3 It is a schematic diagram of the local structure of the drainage device of the present invention;

[0026] Figure 4 It is a schematic diagram of the bottom side cross-section structure of the drainage device of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the extrusion device of the present invention;

[0028] Figure 6 This is a schematic diagram of the bottom structure of the extrusion device of the present invention;

[0029] Figure 7 This is a schematic diagram of the bottom structure of the filtering mechanism of the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the filtering mechanism of the present invention;

[0031] In the figure: 1, circular tank body; 2, air inlet pipe; 3, drainage device; 4, extrusion device; 5, motor; 6, arc support rod; 7, air outlet pipe; 8, built-in arc groove; 9, bottom circular hole; 301, sponge round block; 302, annular through hole; 303, return spring; 304, cross pressure rod; 305, bottom circular plate; 306, drainage circular hole; 307, annular cylinder; 401, threaded long rod; 402, filtering mechanism; 403, inner oblique ring plate; 404, bottom connecting rod; 405, circular pressure block; 406, arc scraper; 4021, filter plate; 4022, outer oblique filter hole; 4023, arc block; 4024, annular scraper; 4025, annular sponge block. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0033] For the first embodiment, please refer to Figure 1-Figure 4 The present invention is a compressed air storage tank, comprising:

[0034] A circular tank body 1, an air inlet pipe 2 is arranged on the outer side of the circular tank body 1;

[0035] A drainage device 3, which absorbs the accumulated water and slowly discharges it;

[0036] A squeezing device 4, which accelerates the drainage speed of the drainage device 3 by pushing and squeezing, and a motor 5 is provided at the bottom of the squeezing device 4;

[0037] The outer surface of the circular tank body 1 is connected to the air outlet of the air inlet pipe 2, the bottom of the circular tank body 1 is fixedly connected to the top of the drainage device 3, the top of the extrusion device 4 is rotatably connected to the inner wall of the circular tank body 1 through a rotating bolt, the bottom of the extrusion device 4 is fixedly connected to the driving shaft of the motor 5, and the output end of the motor 5 is fixedly connected to the bottom of the circular tank body 1;

[0038] Wherein, the drainage device 3 comprises:

[0039] The sponge round block 301 is used to absorb the accumulated water in the circular tank body 1 until the absorbed accumulated water slowly overflows from the bottom when the absorbed water reaches a saturated state;

[0040] The outer surface of the circular tank body 1 is fixedly connected with an arc-shaped support rod 6, the outer side of the circular tank body 1 is connected with an air outlet pipe 7, the inner wall of the circular tank body 1 is provided with a built-in arc groove 8, and the bottom of the circular tank body 1 is provided with a bottom-opened circular hole 9;

[0041] There are three arc-shaped support rods 6, and the three arc-shaped support rods 6 are evenly distributed on the outer surface of the circular tank body 1. There are two built-in arc grooves 8, and the two built-in arc grooves 8 are evenly distributed on the inner wall of the circular tank body 1. The inner wall of the built-in arc groove 8 is slidably connected to the outer side of the extrusion device 4. There are four bottom-opened circular holes 9, and the four bottom-opened circular holes 9 are evenly distributed on the bottom of the circular tank body 1.

[0042] An annular through hole 302 is provided at the top of the sponge round block 301, a return spring 303 is fixedly connected to the inner wall of the annular through hole 302, a cross pressure rod 304 is fixedly connected to the top of the return spring 303, a bottom circular plate 305 is fixedly connected to the bottom of the return spring 303, a drainage circular hole 306 is provided at the top of the bottom circular plate 305, and an annular cylinder 307 is sleeved and fixedly connected to the outer side of the bottom circular plate 305;

[0043] The top of the annular cylinder 307 is fixedly connected to the bottom of the circular tank body 1, and a plurality of sponge round blocks 301 are provided, and the plurality of sponge round blocks 301 are evenly distributed on the inner wall of the annular cylinder 307;

[0044] The top of the sponge round block 301 is fixedly connected to the bottom of the cross pressure rod 304, and the bottom of the sponge round block 301 is fixedly connected to the top of the bottom circular plate 305. When in use, the compressed air is filled into the circular tank body 1 from the air inlet pipe 2, and the compressed air passes through the squeezing device 4 and is filtered and stored in the circular tank body 1. The moisture generated by the compressed air will accumulate at the bottom of the inner wall of the circular tank body 1, and will be absorbed and slowly discharged by the drainage device 3 at the bottom of the center tank body. When the water in the circular tank body 1 is too much to be discharged quickly, the motor 5 is started to drive the squeezing device 4 to rotate to squeeze and discharge the moisture absorbed by the drainage device 3. When the stored compressed air is needed, it can be extracted from the air outlet pipe 7. The accumulated water at the bottom of the inner wall of the circular tank body 1 will contact the sponge round block 301 in the bottom circular hole 9 and be absorbed by the sponge round block 301. By setting a seawater filter at the bottom of the bottom circular hole 9 The sponge round blocks 301 absorb the accumulated water and slowly discharge it by saturation overflow. By arranging multiple sponge round blocks 301 in the annular cylinder 307, the air permeability of the sponge round blocks 301 can be reduced. When the sponge round blocks 301 absorb the accumulated water until it is saturated, the water will overflow downward by gravity and pass through the drainage circular holes 306 on the bottom circular plate 305 and fall out of the annular cylinder 307. By observing whether the accumulated water continues to fall in the annular cylinder 307, it can be judged whether the accumulated water in the circular tank body 1 is accumulating. The multiple sponge round blocks 301 can be compressed and drained by pushing the cross pressure rod 304 through the squeezing device 4. After the compression is completed, the reset spring 303 pushes the cross pressure rod 304 to move back upward through the extension force. When the reset spring 303 pushes the cross pressure rod 304 to move back upward, the multiple sponge round blocks 301 are driven to expand and restore to the initial state.

[0045] For the second embodiment, please refer to Figure 1-Figure 8 The present invention provides a compressed air storage tank: an extrusion device 4 comprises a threaded long rod 401, a filter mechanism 402 is sleeved on the outer surface of the threaded long rod 401 and threadedly connected, an inner oblique ring plate 403 is fixedly connected to the bottom of the filter mechanism 402, a bottom connecting rod 404 is fixedly connected to the outer surface of the inner oblique ring plate 403, a circular pressing block 405 is fixedly connected to the bottom of the bottom connecting rod 404, an arc-shaped scraper 406 is fixedly connected to the outer surface of the threaded long rod 401, the top of the threaded long rod 401 is rotatably connected to the inner wall of the circular tank body 1 through a rotating bolt, the outer side of the filter mechanism 402 is slidably connected to the inner wall of the built-in arc groove 8, four bottom connecting rods 404 are provided, and the four bottom connecting rods 404 are evenly distributed on the outer surface of the inner oblique ring plate 403, four arc-shaped scrapers 406 are provided, and the four arc-shaped scrapers 406 are evenly distributed on the outer surface of the threaded long rod 401;

[0046] The filtering mechanism 402 includes a filter plate 4021, the top of the filter plate 4021 is provided with an outer oblique filter hole 4022, the outer surface of the filter plate 4021 is fixedly connected with an arc-shaped block 4023, the top of the filter plate 4021 is fixedly connected with an annular scraper 4024, the top of the filter plate 4021 is fixedly connected with an annular sponge block 4025, the outer side of the arc-shaped block 4023 is slidably connected to the inner wall of the built-in arc groove 8, the filter plate 4021 is sleeved on the threaded long rod 401 and threadedly connected to the threaded long rod 401, the bottom of the filter plate 4021 is fixedly connected to the top of the inner oblique ring plate 403, two arc-shaped blocks 4023 are provided, and the two arc-shaped blocks 4023 are evenly distributed on the outside of the filter plate 4021, and the outer oblique filter hole 4022 is provided. There are multiple, and multiple outer oblique filter holes 4022 are evenly distributed on the filter plate 4021. When in use, the compressed air filled from the air inlet pipe 2 will pass through the filter mechanism 402 to filter out the impurities therein, and then enter the inner oblique ring plate 403 to flow toward the bottom of the inner wall of the circular tank body 1. When the sponge round block 301 continues to overflow water downward, it indicates that there is a lot of water accumulated in the circular tank body 1 and it is difficult to effectively discharge it. At this time, the motor 5 is started to drive the threaded long rod 401 to rotate. When the threaded long rod 401 rotates, it drives the filter mechanism 402 limited by the built-in arc groove 8 to move downward through the threaded cooperation. When the filter mechanism 402 moves downward, it drives the inner oblique ring plate 403 at the bottom to move. The movement of the inner oblique ring plate 403 drives the bottom connecting rod 404 on the outer surface to move downward. The bottom connecting rod 404 moves downward and drives the bottom The circular pressing block 405 at the bottom moves downward, and the circular pressing block 405 continues to move downward to the bottom and contacts the cross pressing rod 304, so that the cross pressing rod 304 squeezes the sponge round block 301 at the bottom to drain water. The pushing of the circular pressing block 405 can compress and drain the multiple sponge round blocks 301. By setting the diameter of the circular pressing block 405 to be equal to the diameter of the bottom circular hole 9, it is convenient to block the bottom circular hole 9 during pushing. When the threaded long rod 401 rotates, it drives the arc scraper 406 to rotate together. When the arc scraper 406 rotates, it pushes the accumulated water at the bottom of the inner wall of the circular tank body 1 to continue to move. The arc setting of the arc scraper 406 makes the pushed accumulated water flow along the arc path to the same circumference as the bottom circular hole 9. When the circular pressure block 405 enters the bottom circular hole 9, the rotating surface of the arc scraper 406 contacts the bottom connecting rod 404 and is pushed to bend and deform. The accumulated water is pushed by setting a hard metal scraper that can be deformed and restored to its original shape. The compressed air filled into the air intake pipe 2 and entering the circular tank body 1 will pass through the outer oblique filter hole 4022 opened on the filter plate 4021 and flow to the bottom of the inner wall of the circular tank body 1 after entering the inner oblique ring plate 403. The impurities in the stored compressed air are filtered through the outer oblique filter hole 4022. When the threaded long rod 401 moves, the filter plate 4021 limited by the built-in arc groove 8 and the arc block 4023 is driven to move upward through the threaded cooperation. When the filter plate 4021 moves upward, it drives the top annular scraper 4024 to move.The annular scraper 4024 scrapes and cleans the inner wall of the circular tank body 1 at all times when it moves. The scraped accumulated water falls on the filter plate 4021 and falls downward through the outer oblique filter hole 4022 to the bottom of the inner wall of the circular tank body 1. The outer oblique filter holes 4022 with multiple apertures extending outward are provided to cover the surface area of ​​the filter plate 4021 so that the accumulated water can enter the outer oblique filter holes 4022. The annular sponge block 4025 is provided on the filter plate 4021 to surround and cover the surface of the threaded long rod 401 above the filter plate 4021.

[0047] When the present invention is in operation, compressed air is filled into the circular tank body 1 from the air inlet pipe 2, and the compressed air is filtered after passing through the squeezing device 4 and stored in the circular tank body 1. The moisture generated by the compressed air will accumulate at the bottom of the inner wall of the circular tank body 1, and will be absorbed and slowly discharged by the drainage device 3 at the bottom of the center tank body. When the water in the circular tank body 1 is too much to be quickly discharged, the motor 5 is started to drive the squeezing device 4 to rotate to squeeze and discharge the moisture absorbed by the drainage device 3. When the stored compressed air is needed, it can be drawn out from the air outlet pipe 7. The accumulated water at the bottom of the inner wall of the circular tank body 1 will contact with the sponge round block 301 in the bottom circular hole 9 and be absorbed by the sponge round block 301. The sponge round block 301 is arranged at the bottom of the bottom circular hole 9 to absorb and discharge the accumulated water. The water is slowly discharged by saturated overflow, and the air permeability of the sponge blocks 301 is reduced by arranging a plurality of sponge blocks 301 in the annular cylinder 307. When the sponge blocks 301 absorb the accumulated water until the water is saturated, the water will overflow downward by gravity and pass through the drainage holes 306 on the bottom circular plate 305 and fall out of the annular cylinder 307. By observing whether the accumulated water continues to fall in the annular cylinder 307, it can be judged whether the accumulated water in the circular tank body 1 is accumulating. The plurality of sponge blocks 301 can be compressed and drained by pushing the cross pressure rod 304 through the squeezing device 4. After the compression is completed, the reset spring 303 pushes the cross pressure rod 304 to move back upward by the extension force, and the plurality of sponge blocks are driven by the reset spring 303 when the cross pressure rod 304 is pushed back upward. The block 301 expands and recovers to its initial state, and the compressed air charged from the air inlet pipe 2 passes through the filter mechanism 402 to filter out the impurities therein, and then enters the inner oblique ring plate 403 and flows toward the bottom of the inner wall of the circular tank body 1. When the sponge round block 301 continues to overflow water downward, it indicates that there is too much water in the circular tank body 1 and it is difficult to discharge it effectively. At this time, the motor 5 is started to drive the threaded long rod 401 to rotate. When the threaded long rod 401 rotates, it drives the filter mechanism 402 limited by the built-in arc groove 8 to move downward through the threaded cooperation. When the filter mechanism 402 moves downward, it drives the inner oblique ring plate 403 at the bottom to move. The movement of the inner oblique ring plate 403 drives the bottom connecting rod 404 on the outer surface to move downward. The downward movement of the bottom connecting rod 404 drives the circular pressing block 405 at the bottom to move downward. 5 continues to move downward to the bottom and contacts the cross pressure rod 304, and pushes the cross pressure rod 304, so that the cross pressure rod 304 squeezes the sponge round block 301 at the bottom to drain water, and the multiple sponge round blocks 301 are compressed and drained by pushing the circular pressure block 405. By setting the diameter of the circular pressure block 405 equal to the diameter of the bottom circular hole 9, it is convenient to block the bottom circular hole 9 when pushing. When the threaded long rod 401 rotates, it drives the arc scraper 406 to rotate together. When the arc scraper 406 rotates, it pushes the accumulated water at the bottom of the inner wall of the circular tank body 1 to continue to move. The arc setting of the arc scraper 406 makes the pushed accumulated water flow along the arc path to the same circumference as the bottom circular hole 9. When the circular pressure block 405 enters the bottom circular hole 9,The rotating surface of the arc scraper 406 contacts the bottom connecting rod 404 and is pushed to bend and deform. The hard metal scraper that can be deformed and restored to its original shape is set to push the accumulated water. The compressed air that is filled into the air intake pipe 2 and enters the circular tank body 1 will pass through the outer oblique filter hole 4022 opened on the filter plate 4021 and flow to the bottom of the inner wall of the circular tank body 1 after entering the inner oblique ring plate 403. The impurities in the stored compressed air are filtered through the outer oblique filter hole 4022. When the threaded long rod 401 moves, the filter plate 4021 limited by the built-in arc groove 8 and the arc-shaped block 4023 moves upward through the threaded fit. When the filter plate 4021 moves upward, it drives the annular scraper 4024 on the top to move. When the annular scraper 4024 moves, it scrapes and cleans the inner wall of the circular tank body 1 at all times. The scraped accumulated water falls on the filter plate 4021 and falls downward through the outer oblique filter hole 4022 to the bottom of the inner wall of the circular tank body 1. By setting a plurality of outer oblique filter holes 4022 with outwardly expanding apertures to cover the surface area of ​​the filter plate 4021, the accumulated water can enter the outer oblique filter holes 4022. By setting an annular sponge block 4025 on the filter plate 4021, the surface of the threaded long rod 401 located above the filter plate 4021 is surrounded and covered.

[0048] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A compressed air storage tank, characterized in that: include: A circular tank body (1), wherein an air inlet pipe (2) is arranged on the outer side of the circular tank body (1); A drainage device (3), wherein the drainage device (3) absorbs the accumulated water and slowly discharges it; A squeezing device (4), the squeezing device (4) accelerates the drainage speed of the drainage device (3) by pushing and squeezing, and a motor (5) is provided at the bottom of the squeezing device (4); The outer surface of the circular tank body (1) is connected to the air outlet of the air inlet pipe (2), the bottom of the circular tank body (1) is fixedly connected to the top of the drainage device (3), the top of the extrusion device (4) is rotatably connected to the inner wall of the circular tank body (1) via a rotating bolt, the bottom of the extrusion device (4) is fixedly connected to the drive shaft of the motor (5), and the output end of the motor (5) is fixedly connected to the bottom of the circular tank body (1); Wherein, the drainage device (3) comprises: A round sponge block (301), the round sponge block (301) being used to absorb the accumulated water in the round tank body (1) until the absorbed accumulated water slowly overflows from below when the water reaches a saturated state; The top of the sponge round block (301) is provided with an annular through hole (302), the inner wall of the annular through hole (302) is fixedly connected to a return spring (303), the top of the return spring (303) is fixedly connected to a cross pressure rod (304), the bottom of the return spring (303) is fixedly connected to a bottom circular plate (305), the top of the bottom circular plate (305) is provided with a drainage circular hole (306), and an annular cylinder (307) is sleeved and fixedly connected to the outer side of the bottom circular plate (305); The extrusion device (4) comprises a threaded long rod (401), a filtering mechanism (402) being sleeved on and threadedly connected to the outer surface of the threaded long rod (401), an inner oblique ring plate (403) being fixedly connected to the bottom of the filtering mechanism (402), a bottom connecting rod (404) being fixedly connected to the outer surface of the inner oblique ring plate (403), a circular pressing block (405) being fixedly connected to the bottom of the bottom connecting rod (404), and an arc-shaped scraper (406) being fixedly connected to the outer surface of the threaded long rod (401).

2. A compressed air storage tank according to claim 1, characterized in that: The outer surface of the circular tank body (1) is fixedly connected to an arc-shaped support rod (6), the outer side of the circular tank body (1) is connected to an air outlet pipe (7), the inner wall of the circular tank body (1) is provided with a built-in arc groove (8), and the bottom of the circular tank body (1) is provided with a bottom-opening circular hole (9).

3. A compressed air storage tank according to claim 2, characterized in that: The arc-shaped support rods (6) are provided in three numbers, and the three arc-shaped support rods (6) are evenly distributed on the outer surface of the circular tank body (1); the built-in arc grooves (8) are provided in two numbers, and the two built-in arc grooves (8) are evenly distributed on the inner wall of the circular tank body (1); the inner wall of the built-in arc groove (8) is slidably connected to the outer side of the extrusion device (4); and the bottom-opening circular holes (9) are provided in four numbers, and the four bottom-opening circular holes (9) are evenly distributed on the bottom of the circular tank body (1).

4. A compressed air storage tank according to claim 1, characterized in that: The top of the annular cylinder (307) is fixedly connected to the bottom of the circular tank body (1), and a plurality of the sponge round blocks (301) are provided, and the plurality of the sponge round blocks (301) are evenly distributed on the inner wall of the annular cylinder (307).

5. A compressed air storage tank according to claim 1, characterized in that: The top of the sponge round block (301) is fixedly connected to the bottom of the cross pressure rod (304), and the bottom of the sponge round block (301) is fixedly connected to the top of the bottom circular plate (305).

6. A compressed air storage tank according to claim 1, characterized in that: The top of the threaded long rod (401) is rotatably connected to the inner wall of the circular tank body (1) via a rotating bolt, the outer side of the filtering mechanism (402) is slidably connected to the inner wall of the built-in arc groove (8), four bottom connecting rods (404) are provided, and the four bottom connecting rods (404) are evenly distributed on the outer surface of the inner oblique ring plate (403), and four arc-shaped scrapers (406) are provided, and the four arc-shaped scrapers (406) are evenly distributed on the outer surface of the threaded long rod (401).

7. A compressed air storage tank according to claim 6, characterized in that: The filtering mechanism (402) comprises a filtering plate (4021), the top of the filtering plate (4021) being provided with an outer oblique filtering hole (4022), the outer surface of the filtering plate (4021) being fixedly connected with an arc-shaped clamping block (4023), the top of the filtering plate (4021) being fixedly connected with an annular scraper (4024), and the top of the filtering plate (4021) being fixedly connected with an annular sponge block (4025).

8. A compressed air storage tank according to claim 7, characterized in that: The outer side of the arc-shaped clamping block (4023) is slidably connected to the inner wall of the built-in arc groove (8); the filter plate (4021) is sleeved on the threaded long rod (401) and is threadedly connected to the threaded long rod (401); the bottom of the filter plate (4021) is fixedly connected to the top of the inner oblique ring plate (403); two arc-shaped clamping blocks (4023) are provided, and the two arc-shaped clamping blocks (4023) are evenly distributed on the outer side of the filter plate (4021); a plurality of outer oblique filter holes (4022) are provided, and the plurality of outer oblique filter holes (4022) are evenly distributed on the filter plate (4021).

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