Compressed air supply system with stable pressure, continuous air supply and high quality

Abstract

The invention relates to a compressed air supply system with stable pressure, continuous air supply and high quality, and belongs to the technical field of compressed air. Comprising air compressor assemblies, the two air compressor assemblies which are connected in parallel are in through connection with a buffer tank through pipelines, and the exhaust end of the buffer tank is connected with a dehydration filtering assembly and a surge tank assembly through pipelines. The exhaust end of the buffer tank is connected with two sets of dewatering and filtering assemblies in parallel, exhaust end pipelines of the two sets of dewatering and filtering assemblies are combined and then connected with a surge tank assembly, and the surge tank assembly comprises two surge tanks which are arranged in parallel. The two parallel surge tanks are used for alternately feeding and discharging air, the stability of the exhaust flow and the air pressure of the main exhaust pipe is achieved, and the purpose of high-quality air supply is achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of compressed air, and specifically relates to a compressed air supply system with stable pressure, continuous air supply and high quality. Background Art

[0002] High-pressure air supply systems are widely used in many industrial fields, such as medical, laboratory, manufacturing, chemical, pharmaceutical, food processing, and aerospace. The main function of these systems is to compress ambient air to a higher pressure through a compressor, and after processing (including cooling, drying and filtering), provide it to various terminal equipment. High-pressure air has become an indispensable power source in many process flows due to its high energy density and easy transmission characteristics.

[0003] Although the design of modern high-pressure air supply systems is becoming more mature and perfect, there are still some challenges in practical applications, especially in terms of exhaust flow, pressure stability, cleanliness and dryness, and air supply continuity:

[0004] Unstable flow: Due to the large changes in the demand for compressed air in different time periods, the system may not be able to respond to such fluctuations in time. For example, during the peak period of gas production, the system may be short of gas supply due to excessive instantaneous load; and during the off-peak period, it may cause energy waste. In addition, the performance fluctuations of the compressor itself may also affect the final output flow.

[0005] Pressure is not stable enough: In addition to flow issues, pressure stability is also an important consideration. In some precision manufacturing processes, any slight pressure change may affect product quality. However, existing high-pressure air supply systems often find it difficult to maintain an absolutely constant pressure output. This is mainly due to the working state of the compressor, changes in pipeline resistance, and the influence of external environmental conditions (such as temperature and humidity). Summary of the invention

[0006] The technical problem to be solved by the present application is to overcome the deficiencies of the prior art and provide a compressed air supply system with stable pressure, continuous air supply and high quality, which can continuously and stably provide high-quality compressed air.

[0007] The technical solution adopted by this application to solve the problems existing in the prior art is:

[0008] A compressed air supply system with stable pressure, continuous air supply and high quality comprises an air compressor assembly. Two air compressor assemblies connected in parallel are connected to a buffer tank through a pipeline. The exhaust end of the buffer tank is connected to a dehydration filter assembly and a pressure stabilizing tank assembly through a pipeline.

[0009] The exhaust end of the buffer tank is connected in parallel with two sets of dehydration filter assemblies, and the exhaust end pipelines of the two sets of dehydration filter assemblies are combined and connected to the pressure stabilizing tank assembly. The pressure stabilizing tank assembly includes two pressure stabilizing tanks arranged in parallel.

[0010] Preferably, the dehydration and filtration assembly comprises an outer shell and an inner shell which are coaxially sleeved, an annular filter material is coaxially arranged inside the outer shell, the upper and lower ends of the annular filter material are closed, a jet main pipe is coaxially arranged inside the annular filter material, the jet main pipe is vertically arranged, and a plurality of layers of jet branch pipes are arranged on the circumferential surface of the jet main pipe, each layer comprises at least two jet branch pipes distributed in a circular array around the jet main pipe, and the jet branch pipes are bent pipes.

[0011] An air inlet hole is provided on the top surface of the outer shell, and the air inlet hole is connected to the first air inlet pipe. An exhaust hole is provided on the top surface of the inner shell, and the exhaust hole is connected to the first exhaust pipe. The first air inlet pipe is connected to the exhaust end pipeline of the buffer tank through a stop valve, and the first exhaust pipe is connected to the air inlet end pipeline of the pressure-stabilizing tank assembly through a stop valve.

[0012] A backflow cavity is arranged at the bottom of the outer shell, the lower end opening of the jet main pipe is connected with the backflow cavity, and a drainage pipe connected with the backflow cavity is arranged below the outer shell.

[0013] Preferably, the cross-sectional shape of the backflow chamber is funnel-shaped, the drain pipe is connected to the lowest point of the backflow chamber, a plurality of support plates arranged at intervals are vertically fixed inside the backflow chamber, and the top of the support plate is connected to the bottom surface of the inner shell.

[0014] Preferably, the upper end of the inner shell is open, the inner diameter of the upper end of the inner shell is larger than the outer diameter of the annular filter material, a cover plate is provided at the upper end of the inner shell, and the upper and lower ends of the annular filter material are respectively in contact with the bottom surface of the cover plate and the bottom surface of the inner shell.

[0015] Preferably, the bottom surface of the inner shell body is concavely provided with a lower annular groove, the bottom surface of the cover plate is concavely provided with an upper annular groove, the bottom of the annular filter material is inserted into the lower annular groove, and the top surface of the annular filter material is inserted into the upper annular groove.

[0016] Preferably, an internal threaded area is provided at the opening of the inner shell, and an external threaded area is provided on the circumferential surface of the cover plate, and the external threaded area is threadedly connected to the internal threaded area.

[0017] Preferably, a handle portion is convexly provided on the top surface of the cover plate, a rotation groove is concavely provided in the center of the bottom surface of the cover plate, and the top of the jet main pipe is rotatably arranged inside the rotation groove.

[0018] Preferably, several layers of dehydration zones are provided in the annular cavity between the inner wall of the outer shell and the outer wall of the inner shell, each dehydration zone comprises several dehydration plates distributed in a circular array around the axis of the outer shell, the dehydration plates are arranged horizontally, and the upper and lower layers of dehydration plates are arranged alternately.

[0019] Preferably, a plurality of snap-in grooves are recessed on the outer wall of the inner shell, and a semiconductor refrigeration plate is snap-fitted inside the snap-in grooves, the hot end of the semiconductor refrigeration plate abuts against the inner shell, and the cold end of the semiconductor refrigeration plate is fixedly connected to the dehydration plate.

[0020] Preferably, the pressure stabilizing tank assembly includes two pressure stabilizing tanks connected in parallel, the outside of the pressure stabilizing tank is provided with a through-connected regulating cavity, a pressure regulating plate is slidably provided inside the regulating cavity, and a first spring is connected to the side of the pressure regulating plate away from the pressure stabilizing tank.

[0021] The air inlet ends of the two pressure-sustaining tanks are connected through a second air inlet pipe, and the two air inlet pipes are combined and connected to the exhaust end pipeline of the dehydration filter assembly.

[0022] The exhaust ends of the two pressure-stabilizing tanks are connected through a second exhaust pipe, and the second exhaust pipe is connected through a valve to the main exhaust pipe.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) Two gas supply systems, one for use and one for backup. When one system has a problem, it will automatically switch to the backup system to ensure stable pressure and continuous gas supply;

[0025] (2) A profiled rotor meshing air compressor head is used as the power source to avoid the generation of oil molecules at the source; a secondary condensation system is added to the outlet of the profiled rotor meshing compressor to reduce the high-temperature compressed air (210°C) to within +10°C of room temperature, effectively extending the service life of the desiccant; a low-energy consumption pressure swing adsorption dryer with closed-loop control is used to ensure that the dew point of the compressed air is better than -50°C; a dehydration filter assembly is set at the outlet to ensure that the solid pollutant level of the compressed air reaches Level 2.

[0026] (3) The oil content of compressed air can be reduced from ≤0.01mg / m 3 Reduce to <0.01 mg / m 3 , in line with the oil content level 0 standard in ISO8573-1:2010, the solid pollutant level of compressed air is increased from level 3 to level 2, in line with the GB / T13277.1-2015 standard.

[0027] (4) The rear pressure-suppressing tank assembly includes two parallel pressure-suppressing tanks. By adjusting the intake and exhaust time of the two pressure-suppressing tanks, the exhaust pressure and flow temperature of the total exhaust pipe 19 are effectively ensured to achieve high-quality air supply. The dehydration and filtration assembly integrates the two functions of dehydration and filtration. The whole system does not need to set up a separate dryer and air filter, thereby reducing the production cost of the whole system, reducing the layout space, and improving the utilization rate of the space. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Figure 1 A diagram of a compressed air supply system with stable pressure, continuous air supply and high quality is provided for this application.

[0030] Figure 2 This application provides a dehydration filter assembly structure diagram for a compressed air supply system with stable pressure, continuous air supply and high quality.

[0031] Figure 3 This is the total component analysis diagram of dehydration and filtration.

[0032] Figure 4 This is the first cross-sectional view of the dehydration and filtration assembly.

[0033] Figure 5 This is the second cross-sectional view of the dehydration and filtration assembly.

[0034] Figure 6 This is the internal structure diagram of the dehydration and filtration assembly after removing the outer shell.

[0035] Figure 7 This is a cross-sectional view of the inner shell of the dehydration and filtration assembly.

[0036] Figure 8 This is a cross-sectional view of the upper cover of the dehydration and filtration assembly.

[0037] Fig. 9 This is the internal jet pipe structure diagram of the dehydration filter assembly.

[0038] Fig.10 This is the result diagram of the impact plate in the dehydration and filtration assembly.

[0039] Fig.11 The first structural diagram of a pressure-stabilizing tank assembly in a compressed air supply system with stable pressure, continuous air supply and high quality is provided for this application.

[0040] Fig.12 This is the first cross-sectional view of the surge tank.

[0041] Fig.13 The second structural diagram of a pressure-stabilizing tank assembly in a compressed air supply system with stable pressure, continuous air supply and high quality is provided in this application.

[0042] Fig.14 This is the second cross-sectional view of the surge tank.

[0043] Fig.15 This is the horizontal cross-sectional view of the pressure regulating plate of the pressure regulating tank.

[0044] Fig.16 This is a cross-sectional view of the control valve in the pressure-stabilizing tank assembly.

[0045] In the figure: 01-air compressor assembly, 02-buffer tank, 03-dehydration filter assembly, 04-pressure stabilizing tank assembly, 05-condensation system, 06-pressure swing adsorption dryer;

[0046] 1-outer shell, 101-air inlet, 102-drain pipe, 103-backflow chamber, 104-support plate, 2-inner shell, 201-exhaust hole, 202-internal thread area, 203-lower ring groove, 204-clamping groove, 3-cover plate, 301-external thread area, 302-handle part, 303-upper ring groove, 304-rotating groove, 4-annular filter material, 5-jet main pipe, 501-jet branch pipe, 502-baffle, 6-first air inlet pipe, 601-first annular distribution pipe, 602-purge branch pipe, 7-first exhaust pipe, 701-second annular distribution pipe, 702-waste gas discharge branch pipe, 8-semiconductor refrigeration plate, 9-dehydration plate;

[0047] 10-pressure stabilizing tank, 1001-regulating chamber, 1002-blocking ring, 1003-limiting protrusion, 11-pressure regulating plate, 12-first spring, 13-second intake pipe, 14-second exhaust pipe, 15-U-shaped rod, 16-sleeve, 17-linkage valve, 1701-first valve body, 1702-piston, 1703-connecting rod, 1704-card, 18-regulating valve, 1801-second valve body, 1802-second spring, 1803-sealing plate, 19-main exhaust pipe. DETAILED DESCRIPTION

[0048] In conjunction with the accompanying drawings, a compressed air supply system with stable pressure, continuous air supply and high quality is further described in detail, but it is not intended to limit the present application.

[0049] A compressed air supply system with stable pressure, continuous air supply and high quality, consisting of Figures 1 to 16 As shown, it includes an air compressor assembly 01, two air compressor assemblies 01 connected in parallel are connected to a buffer tank 02 through a pipeline with a stop valve, and the exhaust end of the buffer tank 02 is sequentially connected to a dehydration filter assembly 03, a condensation system 05, a pressure swing adsorption dryer 06 and a pressure stabilizing tank assembly 04 through a pipeline. The high-pressure air passing through the dehydration filter assembly 03 can achieve the purpose of dehydration and filtration, reduce the humidity of the high-pressure air, and improve the purity of the high-pressure air.

[0050] Air compressor assembly 01 uses a profiled rotor meshing air compressor head as the power source. Compared with piston air compressors, profiled rotor meshing compressors have simple structures, high reliability, long life, and are more energy-saving and environmentally friendly. Research on closed-loop controlled low-energy pressure swing adsorption dryers, the air consumption of the drying system has dropped from 25% to ≤9%, reducing energy consumption. Oil-free air compression equipment self-diagnosis, operation implementation monitoring, network remote monitoring and early warning, three-level equipment failure reminders, consumables diagnosis and replacement reminders, maintenance reminders, etc. are unattended, improving the paperless operation management data of equipment and reducing energy consumption.

[0051] In order to not affect the supply of high-pressure air during the cleaning and maintenance of the dehydration and filtration assembly 03, in this embodiment, two sets of dehydration and filtration assemblies 03 are connected in parallel to the exhaust end of the buffer tank 02, and the exhaust end pipelines of the two sets of dehydration and filtration assemblies 03 are combined and connected to the pressure-stabilizing tank assembly 04.

[0052] The pressure-surge tank assembly 04 includes two pressure-surge tanks 10 arranged in parallel, so that even when the exhaust flow rate is greater than the intake flow rate, the swivels of the two pressure-surge tanks 10 can ensure sufficient exhaust and stable pressure.

[0053] Condensation system 05 adopts a two-stage condensation system, which mainly includes an aftercooler, an oil-water separator, an automatic drain valve, etc., which is an existing technology. By adding a two-stage condensation system, the high-temperature compressed air (210°C) after compression is reduced to within room temperature + 10°C, thereby improving the adsorption efficiency of the adsorption dryer.

[0054] The pressure swing adsorption dryer 06 adopts closed-loop management to reduce the moisture content of compressed air from a pressure dew point of -40°C to a pressure dew point better than -50°C. The air consumption of the drying system is reduced from 25% to less than 9%.

[0055] Further, by Figures 2 to 10 As shown, the dehydration and filtration assembly 03 includes an outer shell 1 and an inner shell 2 that are coaxially sleeved, an annular filter material 4 is coaxially arranged inside the outer shell 2, the upper and lower ends of the annular filter material 4 are closed, and a jet main pipe 5 is coaxially arranged inside the annular filter material 4. The jet main pipe 5 is arranged vertically, and a plurality of layers of jet branch pipes 501 are arranged on the circumferential surface of the jet main pipe 5, each layer includes at least two jet branch pipes 501 distributed in a circular array around the jet main pipe 5, and the jet branch pipe 501 is a curved pipe.

[0056] The top surface of the outer shell 1 is provided with an air inlet hole 101, which is connected to the first air inlet pipe 6. The top surface of the inner shell 2 is provided with an exhaust hole 201, which is connected to the first exhaust pipe 7. The first air inlet pipe 6 is connected to the exhaust end pipeline of the buffer tank 02 through a stop valve, and the first exhaust pipe 7 is connected to the air inlet end pipeline of the pressure-stabilizing tank assembly 04 through a stop valve.

[0057] The bottom of the outer shell 1 is provided with a backflow cavity 103, the lower end of the jet main pipe 5 is open and connected to the backflow cavity 103, and a drain pipe 102 connected to the backflow cavity 103 is provided below the outer shell 1. The cross-sectional shape of the backflow cavity 103 is funnel-shaped, and the drain pipe 102 is connected to the lowest point of the backflow cavity 103. A plurality of support plates 104 arranged at intervals are vertically fixed inside the backflow cavity 103, and the top of the support plate 104 is connected to the bottom surface of the inner shell 2.

[0058] The outer shell 1 and the inner shell 2 are separated by an annular chamber, which is an air intake chamber; the inner shell 2 and the annular filter material 4 are separated by an annular chamber, which is an exhaust chamber; the jet main pipe 5 is rotatably connected to the inner shell 2.

[0059] The high-pressure air flows into the air intake chamber through the first air intake pipe 6 and the air intake hole 101, then flows downward, is guided by the backflow chamber 103, flows into the jet main pipe 5 from the lower open end of the jet main pipe 5, and then is ejected through the jet branch pipe 501. Because the jet branch pipe 501 is a curved pipe and is arranged around the axis of the jet main pipe 5. Therefore, the process of jetting outward from the jet branch pipe 501 will drive the jet main pipe 5 to rotate, so that the ejected airflow generates centrifugal force, making it easier to pass through the annular filter material 4. After the impurities contained in the high-pressure air are filtered by the annular filter material 4, the high-pressure air flows into the exhaust chamber, then moves upward, and is discharged through the exhaust hole 201 and the first exhaust pipe 7.

[0060] Since a plurality of annularly distributed air inlet holes 101 are provided above the housing shell 1, the first air inlet pipe 6 is connected to the first annular distribution pipe 601, and the first annular distribution pipe 601 is connected to all the air inlet holes 101 by plugging. Similarly, all the exhaust holes 201 are connected to the second annular distribution pipe 701 by plugging, and the second annular distribution pipe 701 is connected to the first exhaust pipe 7.

[0061] The high-pressure air is dehydrated in the process of moving downward from the air intake chamber. Several layers of dehydration zones are provided in the annular cavity between the inner wall of the outer shell 1 and the outer wall of the inner shell 2. Each dehydration zone includes several dehydration plates 9 distributed in a circular array around the axis of the outer shell 1. The dehydration plates 9 are arranged horizontally, and the upper and lower layers of dehydration plates 9 are arranged alternately.

[0062] The high-pressure air collides with the dehydration plate 9. Due to inertia, the heavier water droplets will hit the dehydration plate 9 and adhere to its surface, while the lighter gas will bypass the dehydration plate 9 and continue to flow. Over time, the water droplets accumulated on the dehydration plate 9 will gather into larger droplets and eventually fall due to gravity. Then, the air-water separation is achieved through collision.

[0063] However, the gas-water separation effect is limited by impact alone. In order to increase the gas-water separation effect, a plurality of clamping grooves 204 are concavely provided on the outer wall of the inner shell 2. A semiconductor refrigeration sheet 8 is clamped inside the clamping groove 204. The hot end of the semiconductor refrigeration sheet 8 abuts against the inner shell 2, and the cold end of the semiconductor refrigeration sheet 8 is fixedly connected to the dehydration plate 9. The semiconductor refrigeration sheet 8 and the dehydration plate 9 are fixedly connected by heat-conducting glue. The semiconductor refrigeration sheet 8 reduces the temperature of the dehydration plate 9, thereby achieving the purpose of condensation and dehydration.

[0064] The combination of condensation and impact dehydration methods can effectively improve the gas-water separation effect.

[0065] At the same time, in order to further improve the dryness of the high-pressure air discharged from the dehydration filter assembly 03, the annular filter material 4 can adopt a filter material with a water absorption and filtering function, or a circle of coaxially arranged water absorption annular material can be set on the outside of the annular filter material 4.

[0066] In order to facilitate the replacement or cleaning of the annular filter material 4, the upper end of the inner shell 2 is open, the inner diameter of the upper end of the inner shell 2 is larger than the outer diameter of the annular filter material 4, and a cover plate 3 is provided at the upper end of the inner shell 2. The upper and lower ends of the annular filter material 4 are respectively in contact with the bottom surface of the cover plate 3 and the bottom surface of the inner shell 2.

[0067] The bottom surface of the inner shell 2 is concavely provided with a lower annular groove 203 , the bottom surface of the cover plate 3 is concavely provided with an upper annular groove 303 , the bottom of the annular filter material 4 is inserted into the lower annular groove 203 , and the top surface of the annular filter material 4 is inserted into the upper annular groove 303 .

[0068] The inner shell 2 is provided with an internal thread area 202 at its open end, and the cover plate 3 is provided with an external thread area 301 on its circumferential surface, and the external thread area 301 is threadedly connected to the internal thread area 202. The threaded connection realizes a detachable connection between the cover plate 3 and the inner shell 2, making subsequent replacement of the annular filter material 4 more convenient.

[0069] The top surface of the cover plate 3 is provided with a handle 302, which is convenient for rotating the cover plate 3. The bottom surface of the cover plate 3 is provided with a rotation groove 304 in the center, and the top of the jet manifold 5 is rotatably arranged inside the rotation groove 304, and the rotation groove 304 plays a supporting role for the jet manifold 5. A baffle 502 is provided on the upper and lower sides of the jet manifold 5, respectively, the upper baffle 502 abuts against the bottom surface of the cover plate 3, and the lower baffle 502 abuts against the bottom surface of the inner shell 2. A through hole is provided at the bottom of the inner shell 2, and the lower end of the jet manifold 5 is plugged into the through hole.

[0070] Depend on Figures 11 to 16As shown, the pressure stabilizing tank assembly 04 includes two pressure stabilizing tanks 10 connected in parallel, the pressure stabilizing tank 10 has a convex through-connected regulating cavity 1001 on the outside, a pressure regulating plate 11 is slidably provided inside the regulating cavity 1001, and a first spring 12 is connected to the side of the pressure regulating plate 11 facing away from the pressure stabilizing tank 10.

[0071] A retaining ring 1002 is provided at the through connection between the adjusting chamber 1001 and the pressure regulating tank 10 to prevent the pressure regulating plate 11 from falling into the pressure regulating tank 10. A limiting protrusion 1003 is provided on the inner wall of the adjusting chamber 1001. The limiting protrusion 1003 is arranged along the sliding direction of the pressure regulating plate 11. The limiting protrusion 1003 is engaged with the pressure regulating plate 11, which increases the contact area between the pressure regulating plate 11 and the adjusting chamber 1001, thereby increasing the sealing performance and preventing the pressure regulating plate 11 from deflecting.

[0072] The air inlet ends of the two pressure-surge tanks 10 are connected through a second air inlet pipe 13 , and the two air inlet pipes 13 are combined and connected to the exhaust end pipeline of the dehydration filter assembly 03 .

[0073] The exhaust ends of the two pressure-surge tanks 10 are connected through a second exhaust pipe 14 , and the second exhaust pipe 14 is connected through a main exhaust pipe 19 via a valve.

[0074] When in use, first open the valve on the second exhaust pipe 14 of one of the pressure stabilizing tanks 10 to connect it with the main exhaust pipe 19. During the exhaust process, the air pressure inside the pressure stabilizing tank 10 decreases, and the first spring 12 pushes the pressure regulating plate 11 downward to reduce the space for gas storage inside the pressure stabilizing tank 10, thereby stabilizing the exhaust pressure of the pressure stabilizing tank 10 by shrinking the space.

[0075] When the pressure regulating plate 11 drops to the threshold, the valve on the second exhaust pipe 14 of the pressure regulating tank 10 is closed, and the valve on the other second exhaust pipe 14 is opened to change the supplying pressure regulating tank 10. The previously exhausting pressure regulating tank 10 changes to the intake mode to supplement the gas source. In this way, the alternating filling and exhausting of the two pressure regulating tanks 10 can ensure the exhaust gas flow and pressure of the main exhaust pipe 19, and achieve high-quality gas supply.

[0076] The regulation between the two pressure-stabilizing tanks 10 needs to be electrically regulated, the valves on the second air inlet pipe 13 and the second air outlet pipe 14 need to be electric valves, a limit switch is provided inside the regulating chamber 1001, and the limit switch and the valve are linked.

[0077] The present invention adds the following embodiments to realize the mechanical adjustment conversion between the two pressure stabilizing tanks 10 and improve the practical reliability. Figures 13 to 16 As shown, in this embodiment, a downwardly arranged U-shaped rod 15 is provided above the pressure regulating plate 11, the U-shaped rod 15 is arranged outside the pressure stabilizing tank 10, and the other end of the U-shaped rod 15 is connected to a sleeve 16 with an opening arranged downwardly.

[0078] A linkage valve 17 is connected in series to the second exhaust pipe 14. The linkage valve 17 includes a first valve body 1701. Two oppositely arranged through holes of the first valve body 1701 are connected to the second exhaust pipe 14. A piston 1702 slides up and down inside the first valve body 1701. The piston 1702 falls to block the two through holes, thereby isolating the second exhaust pipe 14. The piston 1702 moves upward, the two through holes are opened, and the second exhaust pipe 14 is connected.

[0079] A connecting rod 1703 is fixed above the piston 1702 , and a clamping plate 1704 is slidably provided inside the sleeve 16 , and the clamping plate 1704 is fixedly connected to the top of the connecting rod 1703 .

[0080] The ends of the second exhaust pipe 14 of the two pressure stabilizing tanks 10 are connected to the two ends of the second valve body 1801 of the regulating valve 18. The second valve body 1801 is provided with a second spring 1802 and a sealing plate 1803 of equal diameter. Under the push of the second spring 1802, the sealing plate 1803 blocks one end of the second exhaust pipe 14. The circumferential surface of the second valve body 1801 also has a through hole connected to the main exhaust pipe 19.

[0081] When in use, the air pressure inside the two pressure-stabilizing tanks 10 is sufficient, and then the two pressure-regulating plates 11 move up, driving the piston 1702 to move up, and the linkage valve 17 is in an open state. Since the air pressure at the ends of the two second exhaust pipes 14 is the same, one of the second exhaust pipes 14 is blocked by the sealing plate 1803 under the push of the second spring 1802. The other second exhaust pipe 14 is connected to the main exhaust pipe 19 for exhaust. During the exhaust process, the air pressure inside the corresponding pressure-stabilizing tank 10 drops, and the pressure-regulating plate 11 moves down, driving the piston to move down, and then closing the second exhaust pipe 14. The air pressure at the end of the other second exhaust pipe 14 can push the second spring 1802 to compress, causing the sealing plate 1803 to slide to the other side of the through hole, thereby realizing the through connection between the second exhaust pipe 14 and the main exhaust pipe 19.

[0082] In order to remove water from the annular filter material 4 or the water-absorbing filter material sleeved on the periphery of the annular filter material 4 and regenerate it, the present invention adds the following embodiment, in which a purge branch pipe 602 with a valve is connected through the first air inlet pipe 6, the purge branch pipe 602 is connected through one of the pressure stabilizing tanks 10, and an exhaust gas discharge branch pipe 702 with a valve is connected through the first exhaust pipe 7.

[0083] In daily condensation and dehydration work, the temperature of the hot end of the semiconductor refrigeration sheet 8 is controlled to be below 80°C. When the filter material needs to be dehydrated and regenerated, the power of the semiconductor refrigeration sheet 8 is increased, and then the temperature of its hot end is increased to make the hot end temperature higher than 100°C, and the water adsorbed on the filter material is evaporated through thermal radiation. Then the valves on the purge branch pipe 602 and the exhaust gas discharge branch pipe 702 are opened, and dry high-pressure air is drawn out from the inside of the pressure regulating tank 10 and blown into the dehydration filter assembly 03, and then the water vapor inside is taken out and discharged through the exhaust gas discharge branch pipe 702, completing the filter material regeneration operation.

[0084] The implementation methods of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above implementation methods, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. A compressed air supply system with stable pressure, continuous air supply and high quality, comprising an air compressor assembly (01), characterized in that: Two air compressor assemblies (01) connected in parallel are connected to a buffer tank (02) through a pipeline, and the exhaust end of the buffer tank (02) is connected to a dehydration filter assembly (03), a condensation system (05), a pressure swing adsorption dryer (06) and a pressure stabilizing tank assembly (04) through a pipeline; The exhaust end of the buffer tank (02) is connected in parallel with two sets of dehydration filter assemblies (03). The exhaust end pipelines of the two sets of dehydration filter assemblies (03) are combined and connected to the condensation system (05). The condensation system (05) adopts a two-stage condensation system. The exhaust port is connected to the pressure swing adsorption dryer (06). The outlet of the pressure swing adsorption dryer (06) is connected to the pressure stabilizing tank assembly (04). The pressure stabilizing tank assembly (04) includes two pressure stabilizing tanks (10) arranged in parallel.

2. A compressed air supply system with stable pressure, continuous air supply and high quality according to claim 1, characterized in that: The dehydration and filtration assembly (03) comprises an outer shell (1) and an inner shell (2) which are coaxially sleeved, an annular filter material (4) is coaxially arranged inside the outer shell (2), the annular filter material (4) is closed at both ends, an air jet main pipe (5) is coaxially arranged inside the annular filter material (4), the air jet main pipe (5) is arranged vertically, and a plurality of layers of air jet branch pipes (501) are arranged on the circumferential surface of the air jet main pipe (5), each layer comprises at least two air jet branch pipes (501) distributed in an annular array around the air jet main pipe (5), and the air jet branch pipes (501) are curved pipes; The top surface of the outer shell (1) is provided with an air inlet hole (101), and the air inlet hole (101) is connected to the first air inlet pipe (6); the top surface of the inner shell (2) is provided with an exhaust hole (201), and the exhaust hole (201) is connected to the first exhaust pipe (7); the first air inlet pipe (6) is connected to the exhaust end pipeline of the buffer tank (02) through a stop valve, and the first exhaust pipe (7) is connected to the air inlet end pipeline of the pressure-stabilizing tank assembly (04) through a stop valve; The bottom of the outer shell (1) is provided with a backflow chamber (103), the lower end opening of the jet main pipe (5) is connected to the backflow chamber (103), and a drainage pipe (102) connected to the backflow chamber (103) is provided below the outer shell (1).

3. A compressed air supply system with stable pressure, continuous air supply and high quality according to claim 2, characterized in that: The cross-sectional shape of the backflow chamber (103) is funnel-shaped, the drain pipe (102) is connected to the lowest point of the backflow chamber (103), a plurality of support plates (104) arranged at intervals are vertically fixed inside the backflow chamber (103), and the top of the support plate (104) is connected to the bottom surface of the inner shell (2).

4. A compressed air supply system with stable pressure, continuous air supply and high quality according to claim 2, characterized in that: The upper end of the inner shell (2) is open, the inner diameter of the upper end of the inner shell (2) is larger than the outer diameter of the annular filter material (4), a cover plate (3) is provided at the upper end of the inner shell (2), and the upper and lower ends of the annular filter material (4) are respectively in contact with the bottom surface of the cover plate (3) and the bottom surface of the inner shell (2).

5. A compressed air supply system with stable pressure, continuous air supply and high quality according to claim 4, characterized in that: The bottom surface of the inner shell (2) is concavely provided with a lower annular groove (203), the bottom surface of the cover plate (3) is concavely provided with an upper annular groove (303), the bottom of the annular filter material (4) is inserted into the lower annular groove (203), and the top surface of the annular filter material (4) is inserted into the upper annular groove (303).

6. A compressed air supply system with stable pressure, continuous air supply and high quality according to claim 4 or 5, characterized in that: The inner shell (2) is provided with an internal threaded area (202) at its open end, and the cover plate (3) is provided with an external threaded area (301) on its circumferential surface. The external threaded area (301) is threadedly connected to the internal threaded area (202).

7. A compressed air supply system with stable pressure, continuous air supply and high quality according to claim 6, characterized in that: The top surface of the cover plate (3) is convexly provided with a handle portion (302), the center of the bottom surface of the cover plate (3) is concavely provided with a rotation groove (304), and the top of the jet main pipe (5) is rotatably arranged inside the rotation groove (304).

8. A compressed air supply system with stable pressure, continuous air supply and high quality according to claim 2, 3, 4, 5 or 7, characterized in that: A plurality of dehydration zones are provided in the annular cavity between the inner wall of the outer shell (1) and the outer wall of the inner shell (2), each dehydration zone comprising a plurality of dehydration plates (9) distributed in an annular array around the axis of the outer shell (1), the dehydration plates (9) being arranged horizontally, and the upper and lower layers of dehydration plates (9) being arranged alternately.

9. A compressed air supply system with stable pressure, continuous air supply and high quality according to claim 8, characterized in that: A plurality of snap-in grooves (204) are recessed on the outer wall of the inner shell (2), and a semiconductor cooling plate (8) is snap-fitted inside the snap-in groove (204). The hot end of the semiconductor cooling plate (8) abuts against the inner shell (2), and the cold end of the semiconductor cooling plate (8) is fixedly connected to the dehydration plate (9).

10. A compressed air supply system with stable pressure, continuous air supply and high quality according to claim 2 or 3 or 4 or 5 or 7 or 9, characterized in that: The pressure stabilizing tank assembly (04) comprises two pressure stabilizing tanks (10) connected in parallel with each other, the pressure stabilizing tank (10) is provided with a through-connected regulating cavity (1001) protruding from the outside, a pressure regulating plate (11) is slidably provided inside the regulating cavity (1001), and a first spring (12) is connected to the side of the pressure regulating plate (11) facing away from the pressure stabilizing tank (10); The air inlet ends of the two pressure-stabilizing tanks (10) are connected through a second air inlet pipe (13), and the two air inlet pipes (13) are combined and connected to the exhaust pipe of the dehydration filter assembly (03); The exhaust ends of the two pressure-stabilizing tanks (10) are connected through a second exhaust pipe (14), and the second exhaust pipe (14) is connected through a valve to a main exhaust pipe (19).

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