A gas drying device and drying process thereof

Abstract

The invention relates to the technical field of gas drying, and specifically discloses a gas drying device and a drying process thereof, comprising two adsorption towers, each of which comprises a tank body, on which an air outlet, an air inlet, a feed port and a discharge port are provided, a lower filter plate is fixedly provided on the inner wall of the tank body, an upper filter plate is slidably fitted on the inner wall of the tank body, and each connecting frame comprises a fixed disk, on which a guide rod is slidably connected; in the gas drying device of the invention, when it is necessary to replace the adsorbent, the discharge port is first opened to release the old adsorbent, and then the discharge port is closed and the feed port is opened, 60% of alumina is poured in through the feed port, and then the upper filter plate is driven to rotate and move downward, so that the upper filter plate presses down the alumina, and the alumina is flattened in coordination with the rotation of the upper filter plate, and then, 30% of the molecular sieve and 10% of the alumina are successively added and flattened, thereby improving the filling fullness of the adsorbent and achieving the purpose of leveling the molecular sieve and the alumina, thereby avoiding affecting the drying effect of the air.

Description

Technical Field

[0001] The present invention relates to the technical field of gas drying, and in particular to a gas drying device and a drying process thereof. Background Art

[0002] The micro-heat regeneration adsorption dryer includes two adsorption towers, each equipped with an adsorbent. Compressed air enters one of the adsorption towers, and the adsorbent removes moisture from the compressed air. Most of the dry air obtained flows through the exhaust port of the dryer for use by the gas-using equipment; a small part of the dry air is used as regeneration gas. After being heated, the regeneration gas flows into the other adsorption tower through a pipeline to purge the adsorbent in the other adsorption tower that has absorbed a large amount of moisture, and take the moisture out of the adsorbent to achieve the purpose of regenerating the adsorbent. The two adsorption towers work in a cycle to continuously provide dry compressed air to the gas-using system.

[0003] The adsorbent filled in the adsorption tower is generally composed of 70% alumina and 30% molecular sieve. The adsorbent is filled as follows: first put 60% alumina in the adsorption tower, then put 30% molecular sieve, and finally put 10% alumina. As the use time of the adsorbent increases, the adsorption performance will gradually decrease. When the adsorption performance decreases to a certain level, the adsorbent needs to be replaced.

[0004] A Chinese patent document with the announcement number CN217016031U discloses a micro-heat regeneration adsorption dryer, including a fixed base, a plurality of clamping columns are installed on the top of the fixed base, and a pair of adsorption towers are clamped between the clamping columns, a support plate is connected between the pair of adsorption towers, a heater is supported on the top of the support plate, the tops of the pair of adsorption towers are connected to a first air outlet pipe through a flange, a first three-way pipe is connected between the first air outlet pipes, a circulating pipe is connected between the first air outlet pipe and the heater, an exhaust pipe is connected at one end of the first three-way pipe, a conduit is connected between the exhaust pipe and the heater, and a dust measuring instrument is connected at one end of the exhaust pipe, and an adsorbent is placed inside the adsorption tower. A feed port is provided at the top of the adsorption tower, and a discharge port is provided at the bottom of the adsorption tower. The micro-heat regeneration adsorption dryer can detect the dust content in the discharged air and directly reflect it to the user, so that the user can replace the adsorbent in time to eliminate the influence of the broken adsorbent on the dryer.

[0005] However, the above technical solution still has the following defects. When the adsorbent needs to be replaced, the discharge port must be opened first to release the old adsorbent. After the old adsorbent is released, the discharge port is closed and the feed port is opened. 60% alumina, 30% molecular sieve and 10% alumina are directly poured in sequence from the feed port. However, in the process of pouring 60% alumina first, the alumina will first gather at the position directly below the feed port, and then diffuse to the surroundings, which will eventually make the alumina directly below the feed port higher, protruding, and not flat. When 30% molecular sieve and 10% alumina are poured in sequence, the same situation will occur, which makes the contact part of alumina and molecular sieve fluctuate, making it difficult to layer alumina and molecular sieve horizontally, resulting in different adsorbents for air passing through different positions, which will affect the air drying effect. Moreover, the adsorbent filling is not sufficient, and the adsorbent particles can move relative to each other, which can easily cause wear of the adsorbent. Summary of the invention

[0006] The present invention provides a gas drying device and a drying process thereof, aiming to solve the problem in the related art that when adding adsorbent, the placement of molecular sieve and alumina is not smooth, which easily causes the adsorbent passing through air at different positions to be different, thus affecting the air drying effect, and the adsorbent is not filled sufficiently, which easily causes adsorbent wear.

[0007] The gas drying device of the present invention comprises two adsorption towers, each of which comprises a tank body, on which an air outlet, an air inlet, a feed inlet and a discharge outlet are provided, a lower filter plate is fixedly provided on the inner wall of the tank body, an upper filter plate is slidably attached to the inner wall of the tank body, a receiving cavity is formed between the tank body, the lower filter plate and the upper filter plate, an adsorbent is contained in the receiving cavity, and a connecting frame and a driving mechanism are installed on each of the tank bodies;

[0008] Each of the connecting frames comprises a fixed plate, a guide hole is opened on the fixed plate, a guide rod is slidably connected to the inner wall of the guide hole with a single degree of freedom, a limiting plate is fixed on the top of the guide rod, and the bottom of the guide rod is fixed on the upper filter plate;

[0009] The movable end of each driving mechanism is connected to the fixed disk, and is used to drive the fixed disk to move up and down and rotate;

[0010] A ventilation structure is fixedly arranged on the two air outlets and the two air inlets to transport the dried gas and the wet gas.

[0011] When the adsorbent needs to be replaced, first start the drive mechanism to drive the fixed plate to move up. The fixed plate moves up and drives the upper filter plate to move up through the guide rod and the limiting plate, so that the upper filter plate moves up to the top of the feed port, open the discharge port, release the old adsorbent, and then close the discharge port and open the feed port, pour 60% of alumina from the feed port, and then start the drive mechanism to drive the upper filter plate to rotate and move down, so that the upper filter plate contacts the top of the alumina. At the same time, the gravity of the upper filter plate presses down the alumina, and the rotation of the upper filter plate pushes the alumina flat, and then start the rotary drive device. The upper filter plate is driven to move above the feed inlet, and 30% of molecular sieve is continued to be added. The above operation is repeated to flatten the molecular sieve, and 10% of alumina is continued to be added. The above operation is repeated to flatten the alumina. Finally, the upper filter plate is controlled to be pressed just above the adsorbent to improve the filling fullness of the adsorbent, achieving the purpose of leveling the molecular sieve and alumina, making the adsorbent passed by air at different positions the same, thereby avoiding affecting the air drying effect, and enhancing the filling fullness of the adsorbent to avoid wear of the adsorbent.

[0012] Preferably, the gas drying device also includes a shock mechanism, which includes a hinged seat fixed on the fixed plate and an elastic strip fixed on the guide rod, a connecting rod is hinged on the hinged seat, an elastic member is fixed between the connecting rod and the fixed plate, a shock ball abutting against the upper filter plate is fixed at the bottom of the connecting rod, the elastic strip moves upward relative to the connecting rod to drive the connecting rod to overcome the elastic force of the elastic member and the elastic strip is deformed to pass over the connecting rod.

[0013] Each time the driving mechanism drives the upper filter plate to press on the adsorbent through the connecting frame, the driving mechanism continues to drive the fixed plate to move downward relative to the upper filter plate, and the guide rod on the upper filter plate moves upward relative to the fixed plate. The elastic strip on the guide rod drives the connecting rod to overcome the elastic force of the elastic part and deflect, so that the connecting rod contacts the fixed plate and no longer deflects, and then the elastic strip is deformed by resistance and passes over the connecting rod. After the connecting rod is separated from the elastic strip, the elastic force of the elastic part quickly drives the connecting rod to reset, and at the same time, the connecting rod drives the shock ball to knock on the upper filter plate, so that the upper filter plate vibrates the adsorbent to compact the filling of the adsorbent.

[0014] Preferably, outer walls of the feed port and the discharge port are threadedly connected with sealing covers to close the feed port and the discharge port.

[0015] By rotating the cover, the cover can be installed and removed from the feed inlet and the discharge port, so as to close the feed inlet and the discharge port.

[0016] Preferably, at least two rake claws are fixedly provided on the bottom of the upper filter plate.

[0017] Each time the driving mechanism drives the upper filter plate to press on the adsorbent through the connecting frame, the rake claws are also inserted into the adsorbent. When the driving mechanism drives the upper filter plate to rotate through the connecting frame, the rake claws can flatten the adsorbent.

[0018] Preferably, both the lower filter plate and the upper filter plate are provided with filter holes for gas to pass through, and the diameter of the filter holes is smaller than the diameter of the adsorbent particles.

[0019] Preferably, the driving mechanism includes a telescopic rod fixedly mounted on the top of the tank body, a movable plate fixedly mounted on the movable end of the telescopic rod, a rotation driving device fixedly mounted on the movable plate, a screw rod fixedly mounted on the output end of the rotation driving device and threadedly connected to the tank body, and the bottom of the screw rod is fixedly mounted on the upper surface of the fixed plate.

[0020] The rotary drive device can drive the screw rod to rotate, and through the threaded cooperation between the screw rod and the threaded hole, the rotating screw rod can achieve longitudinal movement, and then the screw rod drives the upper filter plate to rotate and move longitudinally through the connecting frame.

[0021] Preferably, the ventilation structure comprises a lower pipe system and an upper pipe system, the lower pipe system is connected to two air inlets to transport wet gas, and the upper pipe system is connected to two air outlets to transport dried gas.

[0022] Preferably, the lower pipe system includes an air compressor, a tee pipe 1, a tee pipe 2, two tee pipes 3, two valve 1s, two valve 2s and a muffler. The air compressor is fixedly mounted on the base. An opening of the tee pipe 1 is connected to the air outlet end of the air compressor, and the other two openings of the tee pipe 1 are connected to the two tee pipes 3 through two valve 1s, respectively. An opening of the tee pipe 2 is fixedly connected to the muffler, and the other two openings of the tee pipe 2 are connected to the two tee pipes 3 through two valve 2s, respectively. The remaining openings of the two tee pipes 3 are connected to the two air inlets, respectively.

[0023] Preferably, the upper pipe system includes a three-way pipe four, two valves three, two conduits, a regeneration pipe, a regulating valve and an electric heater. The two openings of the three-way pipe four are connected to the two conduits through two valves three respectively. The two conduits are connected to the gas outlets of the two adsorption towers respectively. The regeneration pipe is fixedly connected between the two conduits. The regulating valve and the electric heater are both installed on the regeneration pipe.

[0024] The gas drying process of the present invention, based on the above-mentioned gas drying device, comprises the following steps:

[0025] Step 1: Check the two adsorption towers and adjust the two adsorption towers to an adsorption state and a regeneration state respectively;

[0026] Step 2: Control the lower pipe system and the upper pipe system so that the compressed gas enters and passes through the adsorption tower in the adsorption state along the lower pipe system, and the moisture in the compressed air is adsorbed by the adsorbent in the adsorption tower in the adsorption state, and the obtained dry air, a part of the dry air is directly transported to the external gas-using equipment through the upper pipe system, and a part of the dry gas enters and passes through the adsorption tower in the regeneration state through the upper pipe system, and the dry gas takes out the moisture in the adsorbent in the adsorption tower in the regeneration state, and then is discharged through the lower pipe system to regenerate the adsorbent;

[0027] Step 3: swap the states of the two adsorption towers, and adjust the lower pipe system and the upper pipe system to realign the adsorption tower in the adsorption state and the adsorption tower in the regeneration state to continue drying the gas.

[0028] The two adsorption towers are controlled to work in a cycle so that one of the adsorption towers is in an adsorption state and the other is in a regeneration state. The lower pipe system and the upper pipe system are controlled so that the compressed gas enters and passes through the adsorption tower in the adsorption state along the lower pipe system. The moisture in the compressed air is adsorbed by the adsorbent in the adsorption tower in the adsorption state, and the obtained dry air is directly transported to the external gas-using equipment through the upper pipe system, while the other dry gas enters and passes through the adsorption tower in the regeneration state through the upper pipe system. The dry gas takes out the moisture in the adsorbent in the adsorption tower in the regeneration state, and is then discharged through the lower pipe system to regenerate the adsorbent, thereby continuously providing dry compressed air to the gas-using system.

[0029] The beneficial effect of the present invention is that when the adsorbent needs to be replaced, the driving mechanism is first started to drive the fixed plate to move upward, and the fixed plate moves upward to drive the upper filter plate to move upward through the guide rod and the limiting plate, so that the upper filter plate moves up to the top of the feed port, the discharge port is opened, and the old adsorbent is released, and then the discharge port is closed and the feed port is opened, 60% of alumina is poured in from the feed port, and then the driving mechanism is started to drive the upper filter plate to rotate and move downward, so that the upper filter plate contacts the top of the alumina, and at the same time, the gravity of the upper filter plate presses down the alumina, and the alumina is flattened in cooperation with the rotation of the upper filter plate, and then, the driving mechanism is started. The rotary drive device drives the upper filter plate to move above the feed inlet again, and continues to add 30% of molecular sieves. The above operation is repeated to flatten the molecular sieves, and continues to add 10% of alumina. The above operation is repeated to flatten the alumina. Finally, the upper filter plate is controlled to be pressed directly above the adsorbent to improve the fullness of the adsorbent filling, thereby achieving the purpose of leveling the molecular sieve and alumina, making the adsorbent passed by air at different positions the same, thereby avoiding affecting the air drying effect, and enhancing the fullness of the adsorbent filling to avoid wear of the adsorbent. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention.

[0031] Figure 2 It is a three-dimensional cross-sectional view of an adsorption tower according to a specific embodiment of the present invention.

[0032] Figure 3 It is a structural schematic diagram of an adsorption tower in a specific embodiment of the present invention.

[0033] Figure 4 It is a structural schematic diagram of a connecting frame of a specific embodiment of the present invention.

[0034] Figure 5 It is a schematic diagram of the structure of the driving mechanism of a specific embodiment of the present invention.

[0035] Figure 6 It is a structural schematic diagram of the lower pipe system of a specific embodiment of the present invention.

[0036] Figure 7 It is a structural schematic diagram of the upper pipe system of a specific embodiment of the present invention.

[0037] Figure 8 It is a structural schematic diagram of the shock mechanism of a specific embodiment of the present invention.

[0038] Reference numerals:

[0039] 10. Base; 20. Adsorption tower; 21. Tank; 211. Air outlet; 212. Air inlet; 213. Feed inlet; 214. Discharge outlet; 215. Cover; 22. Lower filter plate; 23. Upper filter plate; 24. Accommodating chamber; 25. Adsorbent; 26. Rake claw; 30. Connecting frame; 31. Fixed plate; 32. Guide rod; 33. Limiting plate; 40. Driving mechanism; 41. Threaded hole; 42. Telescopic rod; 43. Moving plate; 44. Rotating driving device; 45. Screw; 50. Ventilation structure; 51, lower pipe system; 511, air compressor; 512, three-way pipe one; 513, three-way pipe two; 514, three-way pipe three; 515, valve one; 516, valve two; 517, muffler; 52, upper pipe system; 521, three-way pipe four; 522, valve three; 523, conduit; 524, regeneration pipe; 525, regulating valve; 526, electric heater; 60, shock mechanism; 61, hinged seat; 62, connecting rod; 63, elastic part; 64, shock ball; 65, elastic strip. DETAILED DESCRIPTION

[0040] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0041] like Figures 1 to 8As shown, the gas drying device of the present invention includes a base 10 to support the gas drying device. Two adsorption towers 20 with the same structure are fixedly connected to the base 10. The adsorption tower 20 has an upper filter plate 23. The top of the upper filter plate 23 is fixedly connected to a connecting frame 30. Each adsorption tower 20 is equipped with a driving mechanism 40 connected to the connecting frame 30. The driving mechanism 40 can drive the upper filter plate 23 to move up and down and rotate through the connecting frame 30 to achieve the function of trimming the adsorbent 25. The two adsorption towers 20 are connected through a ventilation structure 50.

[0042] refer to Figures 1 to 3 As shown, the adsorption tower 20 includes a tank body 21, a gas outlet 211 is provided at the top of the tank body 21, and a gas inlet 212 is provided at the bottom of the tank body 21, the gas inlet 212 can be used for gas to enter, and the gas outlet 211 can be used for the dried gas to be discharged, a lower filter plate 22 is fixedly connected to the inside of the tank body 21, and the lower filter plate 22 is located above the gas inlet 212, an upper filter plate 23 is slidably fitted to the inner wall of the tank body 21, and the upper filter plate 23 is located below the gas outlet 211, and a receiving cavity is surrounded by the tank body 21, the lower filter plate 22 and the upper filter plate 23. 24, the accommodating chamber 24 contains the adsorbent 25. It should be noted that filter holes are provided on the lower filter plate 22 and the upper filter plate 23, and the diameter of the filter holes is smaller than the diameter of the adsorbent 25 particles, so that the adsorbent 25 particles cannot pass through, thereby restricting the adsorbent 25 in the accommodating chamber 24, while the gas can pass through the filter holes on the lower filter plate 22 and the upper filter plate 23. A feed port 213 and a discharge port 214 are also provided on the tank body 21. The feed port 213 is used to add the adsorbent 25 into the accommodating chamber 24, and the discharge port 214 is used to discharge the adsorbent 25 in the accommodating chamber 24.

[0043] Continue to refer Figure 3 As shown, the outer walls of the feed port 213 and the discharge port 214 are both provided with threaded sections, and the feed port 213 and the discharge port 214 are both threadedly connected with a cover 215 through the threaded sections provided on the outer walls to seal the feed port 213 and the discharge port 214. At least two rake claws 26 are also fixedly connected to the bottom of the upper filter plate 23. When the upper filter plate 23 is pressed on the surface of the adsorbent 25 and rotated, the rake claws 26 can be inserted into the adsorbent 25 and rotated, and the adsorbent 25 can be clawed flat.

[0044] refer to Figure 2 and Figure 4As shown, the connecting frame 30 includes a fixed plate 31, and at least one guide hole is opened on the fixed plate 31. The inner wall of the guide hole is slidably connected with a guide rod 32 in a single degree of freedom. It should be noted that the guide rod 32 is square, and the guide hole is a square hole adapted to the guide rod 32, so that the guide rod 32 is restricted to slide in the inner wall of the guide hole in a single degree of freedom. A limiting plate 33 is welded on the top of the guide rod 32, and the bottom of the guide rod 32 is welded to the upper surface of the upper filter plate 23. The limiting plate 33 can overlap the upper surface of the fixed plate 31 to suspend the upper filter plate 23 through the guide rod 32, so as to realize the up and down movement of the fixed plate 31 to drive the upper filter plate 23 to move synchronously. In addition, when the fixed plate 31 rotates, the upper filter plate 23 can be driven to rotate synchronously through the guide rod 32.

[0045] refer to Figure 1 , Figure 2 and Figure 5 As shown, the driving mechanism 40 includes a threaded hole 41 opened at the top of the tank body 21 and a telescopic rod 42 fixedly connected to the top of the tank body 21, the movable end of the telescopic rod 42 is fixedly connected to a moving plate 43, and a rotation driving device 44 is fixedly installed on the moving plate 43. In this embodiment, the rotation driving device 44 is a reduction motor, and the output end of the rotation driving device 44 is fixedly connected to a screw rod 45, which is threadedly connected to the threaded hole 41, and the bottom of the screw rod 45 is fixedly connected to the upper surface of the fixed plate 31. The rotation driving device 44 can drive the screw rod 45 to rotate, and the threaded cooperation between the screw rod 45 and the threaded hole 41 can make the rotating screw rod 45 realize longitudinal movement, and then the screw rod 45 drives the upper filter plate 23 to rotate and move longitudinally through the connecting frame 30.

[0046] refer to Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the ventilation structure 50 includes a lower piping system 51 and an upper piping system 52. The lower piping system 51 includes an air compressor 511, a three-way pipe 1 512, a three-way pipe 2 513, two three-way pipes 514, two valves 1 515, two valves 2 516 and a muffler 517; the upper piping system 52 includes a three-way pipe 4 521, two valves 3 522, two conduits 523, a regeneration pipe 524, a regulating valve 525 and an electric heater 526.

[0047] Continue to refer Figure 6As shown, the air compressor 511 is fixedly installed on the base 10, one opening of the three-way pipe 512 is fixedly connected to the air outlet end of the air compressor 511, the other two openings of the three-way pipe 512 are respectively connected to the two three-way pipes 514 through two valves 515, one opening of the three-way pipe 513 is fixedly connected to the muffler 517, the other two openings of the three-way pipe 513 are respectively connected to the two three-way pipes 514 through two valves 516, and the remaining openings of the two three-way pipes 514 are respectively connected to the air inlets 212 of the two adsorption towers 20.

[0048] Continue to refer Figure 7 As shown, one opening of the three-way pipe four 521 is connected to an external gas-using device, and the other two openings of the three-way pipe four 521 are connected to two conduits 523 through two valves three 522 respectively. The two conduits 523 are connected to the gas outlets 211 of the two adsorption towers 20 respectively. The regeneration pipe 524 is fixedly connected between the two conduits 523. The regulating valve 525 and the electric heater 526 are both installed on the regeneration pipe 524. The electric heater 526 is used to heat the gas flowing through the regeneration pipe 524.

[0049] refer to Figure 2 , Figure 4 and Figure 8 As shown, it also includes a shock mechanism 60, which includes an articulated seat 61 welded to the lower surface of the fixed plate 31 and at least one elastic strip 65 fixedly connected to the guide rod 32. A connecting rod 62 is hinged on the articulated seat 61 through a rotating shaft, and an elastic member 63 is fixedly connected between the connecting rod 62 and the fixed plate 31. In this embodiment, the elastic member 63 is a spring sheet, and a shock ball 64 is fixedly connected to the bottom of the connecting rod 62, and the shock ball 64 abuts against the upper surface of the upper filter plate 23. The upward movement of the elastic strip 65 relative to the connecting rod 62 can drive the connecting rod 62 to overcome the elastic force of the elastic member 63 and deflect, and the elastic strip 65 can pass over the connecting rod 62.

[0050] During use, when the adsorbent 25 needs to be replaced, the rotation drive device 44 is first started to drive the screw rod 45 to rotate, and the screw rod 45 is matched with the thread of the threaded hole 41 to make the rotating screw rod 45 move up, and the screw rod 45 drives the upper filter plate 23 to move up through the connecting frame 30, so that the upper filter plate 23 moves to the top of the feed port 213, and the cover 215 on the discharge port 214 is rotated to open the discharge port 214 and release the old adsorbent 25. After the old adsorbent 25 is released, the cover 215 is screwed on to close the discharge port 214, and then the cover 215 on the feed port 213 is rotated to open the feed port 213, and 60% of alumina is poured from the feed port 213, and then the rotation is started. The driving device 44 drives the screw rod 45 to reverse, so that the rotating screw rod 45 moves downward, and the screw rod 45 drives the upper filter plate 23 to rotate and move downward through the connecting frame 30, so that the upper filter plate 23 contacts the top of the alumina. At the same time, the gravity of the upper filter plate 23 presses down the alumina, and the alumina is flattened in conjunction with the rotation of the upper filter plate 23. Then, the rotating driving device 44 is started to drive the upper filter plate 23 to move to the top of the feed inlet 213, and then 30% of the molecular sieve is added. The above operation is repeated to flatten the molecular sieve, and then 10% of the alumina is added. The above operation is repeated to flatten the alumina. At the same time, the upper filter plate 23 is controlled to be pressed directly above the adsorbent 25 to improve the filling fullness of the adsorbent 25.

[0051] In addition, each time the driving mechanism 40 drives the upper filter plate 23 to press on the adsorbent 25 through the connecting frame 30, the driving mechanism 40 continues to drive the fixed disk 31 to move downward relative to the upper filter plate 23, and the driving mechanism 40 continues to drive the upper filter plate 23 to rotate through the connecting frame 30, the rake claw 26 can be inserted into the adsorbent 25 and rotate, further flattening the adsorbent 25, and the guide rod 32 on the upper filter plate 23 moves upward relative to the fixed disk 31, and the elastic strip 65 on the guide rod 32 drives the connecting rod 62 to overcome the elastic force of the elastic member 63 to deflect, so that the connecting rod 62 contacts the fixed disk 31 and no longer deflects, and then the elastic strip 65 is deformed by the pressure and passes over the connecting rod 62. After the connecting rod 62 is separated from the elastic strip 65, the elastic force of the elastic member 63 quickly drives the connecting rod 62 to reset, and at the same time, the connecting rod 62 drives the shock ball 64 to knock on the upper filter plate 23, so that the upper filter plate 23 vibrates the adsorbent 25 to enrich the filling of the adsorbent 25.

[0052] The gas drying process of the present invention, using the above-mentioned gas drying device, comprises the following steps:

[0053] Step 1: Check the two adsorption towers 20, adjust one adsorption tower 20 to an adsorption state, and adjust the other adsorption tower 20 to a regeneration state;

[0054] Step 2: Start the air compressor 511, and adjust the two valves 1 515, the two valves 2 516 and the two valves 3 522, so that the gas compressed by the air compressor 511 enters the air inlet 212 of the adsorption tower 20 in the adsorption state along the three-way pipe 1 512 and the three-way pipe 514, so that the air enters the adsorption tower 20 in the adsorption state, and the air entering the adsorption tower 20 in the adsorption state passes through the adsorbent 25, and the adsorbent 25 adsorbs the moisture in the compressed air to obtain dry air, which is discharged from the air outlet 211, and the discharged dry air is transported to the external gas-using equipment through a conduit 523 and the three-way pipe 4 521, and a part of the dry gas passes through the regeneration The pipe 524 and another conduit 523 enter the gas outlet 211 of the adsorption tower 20 in the regeneration state, and the dry gas flowing through the regeneration pipe 524 will pass through the regulating valve 525 and the electric heater 526. The regulating valve 525 stabilizes the pressure of the gas, and the electric heater 526 heats the gas, so that the dry gas entering the adsorption tower 20 in the regeneration state is low-pressure and high-temperature. The low-pressure and high-temperature dry gas passes through the adsorbent 25 in the adsorption tower 20 in the regeneration state, and brings the moisture in the adsorbent 25 out from the air inlet 212, and is discharged in turn through another three-way pipe 514, three-way pipe 513 and muffler 517, so as to achieve the purpose of regenerating the adsorbent 25.

[0055] Step 3: swap the states of the two adsorption towers 20, and adjust the two valves 1 515, the two valves 2 516 and the two valves 3 522 to realign the adsorption tower 20 in the adsorption state with the adsorption tower 20 in the regeneration state.

[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A gas drying device, comprising two adsorption towers, each of which comprises a tank body, the tank body is provided with an air outlet, an air inlet, a feed inlet and a discharge port, and the inner wall of the tank body is fixed with a lower filter plate, characterized in that: The inner wall of the tank body is slidably fitted with an upper filter plate, and a receiving cavity is formed between the tank body, the lower filter plate and the upper filter plate, and the receiving cavity contains an adsorbent, and each of the tank bodies is installed with a connecting frame and a driving mechanism; Each of the connecting frames comprises a fixed plate, a guide hole is provided on the fixed plate, a guide rod is slidably connected to the inner wall of the guide hole with a single degree of freedom, a limiting plate is fixedly provided on the top of the guide rod, and the bottom of the guide rod is fixedly provided on the upper filter plate; the limiting plate can overlap the upper surface of the fixed plate to suspend the upper filter plate through the guide rod, so that the fixed plate can move up and down to drive the upper filter plate to move synchronously; when the fixed plate rotates, the upper filter plate can be driven to rotate synchronously through the guide rod; The movable end of each driving mechanism is connected to the fixed plate, and is used to drive the fixed plate to move up and down and rotate; the driving mechanism includes a telescopic rod fixedly arranged on the top of the tank body, a movable plate fixedly arranged on the movable end of the telescopic rod, a rotation driving device fixedly arranged on the movable plate, a screw rod fixedly arranged on the output end of the rotation driving device and threadedly connected to the tank body, and the bottom of the screw rod fixedly arranged on the upper surface of the fixed plate; A ventilation structure is fixedly provided on the two air outlets and the two air inlets to transport the dried gas and the wet gas; the ventilation structure comprises a lower pipe system and an upper pipe system, the lower pipe system is connected with the two air inlets to transport the wet gas, and the upper pipe system is connected with the two air outlets to transport the dried gas; It also includes a shock mechanism, which includes an articulated seat fixed on the lower surface of the fixed plate and an elastic strip fixed on the guide rod, a connecting rod is hinged on the articulated seat, an elastic member is fixed between the connecting rod and the fixed plate, and a shock ball is fixed at the bottom of the connecting rod to abut against the upper filter plate; After each time the driving mechanism drives the upper filter plate to press on the adsorbent through the connecting frame, the driving mechanism continues to drive the fixed plate to move downward relative to the upper filter plate, and the driving mechanism continues to drive the upper filter plate to rotate through the connecting frame, and the guide rod on the upper filter plate moves upward relative to the fixed plate, and the elastic strip on the guide rod drives the connecting rod to overcome the elastic force of the elastic part and deflect, so that the connecting rod contacts the fixed plate and no longer deflects, and then the elastic strip is deformed by the pressure and passes over the connecting rod. After the connecting rod is separated from the elastic strip, the elastic force of the elastic part quickly drives the connecting rod to reset, and at the same time, the connecting rod drives the shock ball to knock on the upper filter plate, so that the upper filter plate vibrates the adsorbent.

2. The gas drying device according to claim 1, characterized in that: The outer walls of the feed port and the discharge port are both threadedly connected with a cover to close the feed port and the discharge port.

3. The gas drying device according to claim 1, characterized in that: At least two rake claws are fixedly arranged on the bottom of the upper filter plate.

4. The gas drying device according to claim 1, characterized in that: The lower filter plate and the upper filter plate are both provided with filter holes for gas to pass through, and the diameter of the filter holes is smaller than the diameter of the adsorbent particles.

5. The gas drying device according to claim 1, characterized in that: The lower pipe system includes an air compressor, a tee pipe 1, a tee pipe 2, two tee pipes 3, two valve 1s, two valve 2s and a muffler. The air compressor is fixedly mounted on a base. An opening of the tee pipe 1 is connected to an air outlet end of the air compressor, and the other two openings of the tee pipe 1 are connected to two tee pipes 3 through two valve 1s, respectively. An opening of the tee pipe 2 is fixedly connected to a muffler, and the other two openings of the tee pipe 2 are connected to two tee pipes 3 through two valve 2s, respectively. The remaining openings of the two tee pipes 3 are connected to two air inlets, respectively.

6. The gas drying device according to claim 5, characterized in that: The upper pipe system includes a three-way pipe four, two valves three, two conduits, a regeneration pipe, a regulating valve and an electric heater. The two openings of the three-way pipe four are respectively connected with the two conduits through the two valves three. The two conduits are respectively connected with the gas outlets of the two adsorption towers. The regeneration pipe is fixedly connected between the two conduits. The regulating valve and the electric heater are both installed on the regeneration pipe.

7. A gas drying process based on the gas drying device according to claim 6, characterized in that: The steps include: Step 1: Check the two adsorption towers and adjust the two adsorption towers to an adsorption state and a regeneration state respectively; Step 2: Control the lower pipe system and the upper pipe system so that the compressed gas enters and passes through the adsorption tower in the adsorption state along the lower pipe system, and the moisture in the compressed air is adsorbed by the adsorbent in the adsorption tower in the adsorption state, and the obtained dry air, a part of the dry air is directly transported to the external gas-using equipment through the upper pipe system, and a part of the dry gas enters and passes through the adsorption tower in the regeneration state through the upper pipe system, and the dry gas takes out the moisture in the adsorbent in the adsorption tower in the regeneration state, and then is discharged through the lower pipe system to regenerate the adsorbent; Step 3: swap the states of the two adsorption towers, and adjust the lower pipe system and the upper pipe system to realign the adsorption tower in the adsorption state and the adsorption tower in the regeneration state to continue drying the gas.

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