Regenerative adsorption dryer and use method thereof

Abstract

The invention discloses a regenerative adsorption dryer and a use method thereof. A reversing valve I, a reversing valve II, a reversing valve III, a reversing valve IV and a reversing valve V are two-position three-way reversing valves, and diffusers are arranged in the middle positions in an adsorption tower I and an adsorption tower II; the air outlet pipe is communicated with one end of the control valve I and one end of the control valve II, one end of the heater is communicated with the air outlet pipe through a pipeline, the other end of the heater is communicated with an inlet P of the reversing valve I, a working port A of the reversing valve I is communicated with an inlet P of the reversing valve II, and a working port B of the reversing valve I is communicated with an inlet P of the reversing valve III. A working port A of the reversing valve II and the other end of the control valve I are communicated with the inner top of the adsorption tower I, and a working port B of the reversing valve II is communicated with a diffuser of the adsorption tower I; a working port A of the reversing valve III and the other end of the control valve II are respectively communicated with the inner top of the adsorption tower II, and a working port B of the reversing valve III is communicated with a diffuser of the adsorption tower II. According to the invention, the adsorbent is uniformly heated.

Description

Technical Field

[0001] The present invention relates to the technical field of adsorption dryers, and in particular to a regenerative adsorption dryer and a use method thereof. Background Art

[0002] The existing regenerative adsorption dryer heats the regeneration gas directly from the top of the adsorption tower downwards, which results in a long heating time and uneven heating, which in turn leads to incomplete heating and regeneration of the adsorbent, affecting the secondary adsorption, and it is impossible to guarantee whether the best compressed air can be obtained; in addition, the existing regenerative adsorption dryer does not have a filtering function, because impurities and dust in the air enter the adsorption tower, which easily causes pipeline blockage, thereby affecting the overall performance of the dryer. Therefore, the above problems need to be solved urgently. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a regenerative adsorption dryer and a method for using the same. By setting a reversing valve II and a reversing valve III, the adsorbent in the lower part of the adsorption tower I or the adsorption tower II can be heated first, and then heated from the top of the adsorption tower I or the adsorption tower II, so that the adsorbent in the entire adsorption tower I or the adsorption tower II is evenly heated, which not only improves the adsorption capacity of the adsorbent, but also extends the service life of the adsorbent, thereby ensuring the quality of the obtained dry compressed air.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a regenerative adsorption dryer of the present invention comprises an adsorption tower I and an adsorption tower II; the adsorption tower I and the adsorption tower II are both filled with adsorbent, and the two have the same structure and are arranged in parallel with left and right intervals; its innovation lies in: it also comprises a heater, a reversing valve I, a reversing valve II, a reversing valve III, a reversing valve IV, a reversing valve V, a control valve I, a control valve II, an air inlet pipe, an exhaust pipe and an air outlet pipe; the reversing valve I, the reversing valve II, the reversing valve III, the reversing valve IV and the reversing valve V are all two-position three-way reversing valves, and diffusers are respectively provided at the middle positions inside the adsorption tower I and the adsorption tower II; one end of the air outlet pipe is respectively connected to one end of the control valve I and the control valve II, and one end of the heater is connected to the air outlet pipe through a pipeline, and the other end thereof is connected to the inlet P of the reversing valve I, and the working port A of the reversing valve I is connected to the inlet of the reversing valve II The working port P of the reversing valve is connected, and its working port B is connected with the inlet P of the reversing valve III; the working port A of the reversing valve II and the other end of the control valve I are respectively connected with the inner top of the adsorption tower I through a pipeline, and the working port B of the reversing valve II is connected with the diffuser in the adsorption tower I through a pipeline; the working port A of the reversing valve III and the other end of the control valve II are respectively connected with the inner top of the adsorption tower II through a pipeline, and the working port B of the reversing valve III is connected with the diffuser in the adsorption tower II through a pipeline; one end of the inlet pipe is connected with the inlet P of the reversing valve V, and one end of the exhaust pipe is connected with the outlet T of the reversing valve IV; the working port A of the reversing valve IV and the working port A of the reversing valve V are respectively connected with the inner bottom of the adsorption tower I through a pipeline, and the working port B of the reversing valve IV and the working port B of the reversing valve V are respectively connected with the inner bottom of the adsorption tower II through a pipeline.

[0005] Preferably, it also includes a one-way valve I, a one-way valve II and a throttle valve; the control valve I and the control valve II are both two-position two-way reversing valves, and a throttle valve is also connected on the pipeline between the heater and the outlet pipe; a one-way valve I is also connected on the pipeline between the working port A of the reversing valve II and the adsorption tower I, and a one-way valve II is also connected on the pipeline between the working port A of the reversing valve III and the adsorption tower II.

[0006] Preferably, it also includes a rotating component, a rotating plate, a slide rail and a cleaning brush; a rotating plate matching therewith is also horizontally and coaxially provided on the inner bottom surfaces of the adsorption tower I and the adsorption tower II, and the rotating plates are respectively connected to the inner bottom surfaces of the corresponding adsorption tower I or adsorption tower II for horizontal rotation through the rotating component; a slide rail matching therewith is also coaxially sleeved and fixed on the inner walls of the adsorption tower I and the adsorption tower II relative to the corresponding rotating plate position, and each of the slide rails is a circular ring structure; an annular groove matching the slide rail is also coaxially embedded on the outer circumferential surface of each of the rotating plates relative to the slide rail position, and the stability of the horizontal rotation of the rotating plate is ensured by the cooperation between the slide rail and the corresponding annular groove; cleaning brushes are also vertically fixed on the left and right edges of the upper surface of each of the rotating plates, and the cleaning brushes of each of the cleaning brushes are in close contact with the inner wall of the corresponding adsorption tower I or adsorption tower II in the outward direction, and clean the inner wall of the corresponding adsorption tower I or adsorption tower II during the horizontal rotation of the rotating plate.

[0007] Preferably, each of the rotating components includes a housing, a motor, a main bevel gear, a slave bevel gear and a rotating shaft; a housing is also horizontally fixedly provided in the middle position of the lower surface of the adsorption tower I and the adsorption tower II, and each of the housings is a hollow rectangular structure with an open upper surface, and is respectively integrally formed with the corresponding adsorption tower I or adsorption tower II; a rotating shaft is also vertically provided in the middle position inside each of the housings, and the lower end of each rotating shaft is respectively connected to the inner bottom surface of the corresponding housing through a bearing so as to rotate around its own axial direction, and the upper end thereof is respectively extended vertically upward from the inner bottom surface of the corresponding adsorption tower I or adsorption tower II, and is respectively coaxial with the lower surface of the corresponding rotating plate. The gears are fixedly connected to the center of the gearbox; on each of the rotating shafts, a slave bevel gear is fixedly provided in a coaxial sleeve relative to the corresponding box body, and each of the boxes does not interfere with the rotation of the corresponding slave bevel gear along with the rotating shaft; inside each of the boxes, a motor is horizontally spaced relative to one side of the corresponding slave bevel gear, and the fixed end of each motor is screwed and fixed to the corresponding inner side surface of the box body, and the output end thereof is arranged toward the direction of the corresponding slave bevel gear, and is respectively meshed and connected with the corresponding slave bevel gear through the main bevel gear, and then, under the drive of the motor, the rotating plate rotates horizontally around its own axis along with the corresponding rotating shaft through the meshing cooperation of the main bevel gear and the corresponding slave bevel gear.

[0008] Preferably, they also include roller groups; a circle of roller groups abutting against the lower surface of the corresponding rotating plate is connected to the edge of the inner bottom surface of the adsorption tower I and the adsorption tower II, and the roller groups in this circle are coaxially arranged with the corresponding rotating plate, and are respectively arranged without interfering with the corresponding rotating shaft; each of the roller groups is conical, and the end close to the corresponding rotating shaft is the small end, and the other end is the large end, so as to adapt to the smaller linear speed close to the rotating shaft when the rotating plate rotates.

[0009] Preferably, the upper end of the pipe connected with the working port A of the reversing valve IV and the working port A of the reversing valve V is coaxially embedded in the corresponding rotating shaft, and extends coaxially vertically upward to the upper surface of the corresponding rotating plate, and is connected with the interior of the adsorption tower I, thereby ensuring that the horizontal rotation of the corresponding rotating plate is not affected; the upper end of the pipe connected with the working port B of the reversing valve IV and the working port B of the reversing valve V is coaxially embedded in the corresponding rotating shaft, and extends coaxially vertically upward to the upper surface of the corresponding rotating plate, and is connected with the interior of the adsorption tower II, thereby ensuring that the horizontal rotation of the corresponding rotating plate is not affected.

[0010] Preferably, it also includes a filter box, a filter plate and an activated carbon adsorption plate; a hollow rectangular filter box is also connected to the air intake pipe, and activated carbon adsorption plates and filter screens matching the interior of the filter box are vertically and longitudinally parallelly arranged at left and right intervals inside the filter box, and ensure that the activated carbon adsorption plate is arranged on the side of the reversing valve V; the activated carbon adsorption plate and filter screen are respectively connected to the filter box vertically and downwardly, and the pulling and pulling actions of the two do not interfere with each other, thereby filtering and adsorbing the air entering through the air intake pipe in turn.

[0011] Preferably, it also includes a first limit plate, a first pull-out block, a first handle and a first pin; a first pull-out block matching the first pull-out block is also vertically fixed on the upper surface of the filter plate, and the upper surface of the first pull-out block extends vertically upward from the upper surface of the filter box; first limit plates are also vertically symmetrically provided on the left and right sides of the first pull-out block beyond the filter box, and the lower surface of each of the first limit plates is fixedly connected to the corresponding position of the upper surface of the filter box; a first pin is also vertically provided at the middle position of the left side of the first limit plate on the left, and the right end of the first pin horizontally passes through the first limit plate on the left, the first pull-out block and the first limit plate on the right in sequence, and limits the vertical pulling action of the filter plate; a first sealing gasket matching the first pull-out block is also sleeved at the joint of the first pull-out block and the filter box, and the first sealing gasket is embedded and fixedly connected to the filter box; a first handle is also vertically provided at the middle position of the upper surface of the first pull-out block, and the first handle and the two first limit plates are arranged without interfering with each other, and the filter plate is pulled and pulled by the first handle.

[0012] Preferably, it also includes a second limiting plate, a second pull-out block, a second handle and a second pin; a second pull-out block matching the second pull-out block is vertically fixed on the upper surface of the activated carbon adsorption plate, and the upper surface of the second pull-out block extends vertically upward from the upper surface of the filter box; second limiting plates are vertically symmetrically provided on the left and right sides of the second pull-out block that exceeds the filter box, and the lower surface of each of the second limiting plates is fixedly connected to the corresponding position of the upper surface of the filter box; a second pin is vertically provided in the middle position of the left side of the second limiting plate on the left, and the second pin The right end horizontally passes through the second limiting plate on the left, the second pull-out block and the second limiting plate on the right in sequence to the right, and limits the vertical pulling action of the activated carbon adsorption plate; a second sealing gasket matching the second pulling block is also sleeved at the joint between the second pulling block and the filter box, and the second sealing gasket is embedded and fixedly connected to the filter box; a second handle is also vertically provided in the middle position of the upper surface of the second pulling block, and the second handle and the two second limiting plates are arranged without interfering with each other, and the pulling action of the activated carbon adsorption plate is performed by the second handle.

[0013] The invention discloses a method for using a regenerative adsorption dryer, which is innovative in that it comprises the following steps: (1) When adsorption tower I is adsorbing and adsorption tower II is regenerating (1.1) First, open control valve I and close control valve II, and make sure the motor is not working; then move the valve core of reversing valve I to the right, so that the inlet P of reversing valve I is connected with its working port B; (1.2) Then move the valve core of the reversing valve III downward so that the inlet P of the reversing valve III is connected to its working port B; at the same time, move the valve core of the reversing valve IV to the right so that the working port B of the reversing valve IV is connected to its outlet T; and move the valve core of the reversing valve V to the left so that the inlet P of the reversing valve V is connected to its working port A; (1.3) After the air enters the filter box through the air inlet pipe for filtration and adsorption, it enters the interior of the adsorption tower I for adsorption. The dry regeneration gas flowing out from the top of the adsorption tower I is collected through the control valve I and the air outlet pipe in turn. A small part of the dry regeneration gas flows back through the throttle valve, and then after being heated by the heater, it enters the diffuser of the adsorption tower II through the reversing valve I and reversing valve III in turn, heating the adsorbent at the middle and lower position of the adsorption tower II; (1.4) Then move the valve core of reversing valve III upwards, so that the inlet P of reversing valve III is connected with its working port A. At this time, heating can be started from the top of adsorption tower II downwards, and the regenerated gas that absorbs more water is discharged from the bottom of adsorption tower II through reversing valve IV and exhaust pipe in sequence; (2) When adsorption tower II is adsorbing and adsorption tower I is regenerating (2.1) First, open control valve II and close control valve I, and make sure the motor is not working; then move the valve core of reversing valve I to the left, so that the inlet P of reversing valve I is connected with its working port A; (2.2) Then move the valve core of reversing valve II downward so that the inlet P of reversing valve II is connected to its working port B; at the same time, move the valve core of reversing valve IV to the left so that the working port A of reversing valve IV is connected to its outlet T; and move the valve core of reversing valve V to the right so that the inlet P of reversing valve V is connected to its working port B; (2.3) After the air enters the filter box through the air inlet pipe for filtration and adsorption, it enters the interior of the adsorption tower II for adsorption. The dry regeneration gas flowing out from the top of the adsorption tower II is collected through the control valve II and the air outlet pipe in turn. A small part of the dry regeneration gas flows back through the throttle valve, and then after being heated by the heater, it enters the diffuser of the adsorption tower I through the reversing valve I and reversing valve II in turn, heating the adsorbent at the middle and lower position of the adsorption tower I; (2.4) Then move the valve core of reversing valve II upwards so that the inlet P of reversing valve II is connected with its working port A. At this time, heating can be started from the top of the adsorption tower I downwards, and the regenerated gas that absorbs more water is discharged from the bottom of the adsorption tower I through the reversing valve IV and the exhaust pipe in turn.

[0014] Beneficial effects of the present invention: (1) The present invention provides a reversing valve II and a reversing valve III, so that the adsorbent in the lower part of the adsorption tower I or the adsorption tower II can be heated first, and then heated from the top of the adsorption tower I or the adsorption tower II, so that the adsorbent in the entire adsorption tower I or the adsorption tower II is evenly heated, which not only improves the adsorption capacity of the adsorbent, but also prolongs the service life of the adsorbent, thereby ensuring the quality of the obtained dry compressed air; (2) The present invention can filter and adsorb the air entering the adsorption tower I or the adsorption tower II by providing a filter plate and an activated carbon adsorption plate, thereby avoiding the occurrence of pipeline blockage; (3) The filter plate and activated carbon adsorption plate of the present invention are both detachable, which facilitates the maintenance and replacement of the filter plate or the activated carbon adsorption plate, thereby improving practicality; (4) The present invention facilitates cleaning of the inner wall of adsorption tower I or adsorption tower II by using a rotating assembly, a rotating plate and a cleaning brush, thereby increasing the service life; (5) The present invention ensures the stability of the cleaning brush during the cleaning process by providing a roller group. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 The figure is a schematic structural diagram of a regenerative adsorption dryer according to the present invention.

[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the cleaning part in the adsorption tower I.

[0018] Figure 3 for Figure 1 Schematic diagram of the internal structure of the filter box.

[0019] Among them, 1-adsorption tower I; 2-adsorption tower II; 3-heater; 4-throttle valve; 5-reversing valve I; 6-reversing valve II; 7-reversing valve III; 8-reversing valve IV; 9-reversing valve V; 10-control valve I; 11-control valve II; 12-diffuser; 13-check valve I; 14-check valve II; 15-box; 16-motor; 17-main bevel gear; 18-slave bevel gear; 19-rotating shaft; 2 0-rotating plate; 21-roller group; 22-slide rail; 23-cleaning brush; 24-filter plate; 25-first limit plate; 26-first pull-out block; 27-first handle; 28-first pin shaft; 29-filter box; 30-activated carbon adsorption plate; 31-second limit plate; 32-second pull-out block; 33-second handle; 34-second pin shaft; 35-intake pipe; 36-exhaust pipe; 37-exhaust pipe. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below through specific implementation methods.

[0021] A regenerative adsorption dryer of the present invention comprises an adsorption tower Ⅰ1 and an adsorption tower Ⅱ2; adsorption tower Ⅰ1 and adsorption tower Ⅱ2 are both filled with adsorbent, and the two have the same structure and are arranged in parallel with each other at intervals on the left and right; the specific structure is as follows Figures 1 to 3As shown, it also includes a heater 3, a reversing valve I5, a reversing valve II6, a reversing valve III7, a reversing valve IV8, a reversing valve V9, a control valve I10, a control valve II11, an air inlet pipe 35, an exhaust pipe 36 and an air outlet pipe 37; the reversing valve I5, the reversing valve II6, the reversing valve III7, the reversing valve IV8 and the reversing valve V9 are all two-position three-way reversing valves, and diffusers 12 are also provided at the middle positions inside the adsorption tower I1 and the adsorption tower II2 respectively; one end of the air outlet pipe 37 is connected to one end of the control valve I10 and the control valve II11 respectively, and one end of the heater 3 is connected to the air outlet pipe 37 through a pipeline, and the other end thereof is connected to the inlet P of the reversing valve I5, the working port A of the reversing valve I5 is connected to the inlet P of the reversing valve II6, and its working port B is connected to the inlet P of the reversing valve III7; the working port A of the reversing valve II6 is connected to the inlet P of the reversing valve The working port A and the other end of the control valve I10 are communicated with the inner top of the adsorption tower I1 through pipelines, and the working port B of the reversing valve II6 is communicated with the diffuser 12 in the adsorption tower I1 through a pipeline; the working port A of the reversing valve III7 and the other end of the control valve II11 are communicated with the inner top of the adsorption tower II2 through pipelines, and the working port B of the reversing valve III7 is communicated with the diffuser 12 in the adsorption tower II2 through a pipeline; one end of the air inlet pipe 35 is communicated with the inlet P of the reversing valve V9, and one end of the exhaust pipe 36 is communicated with the outlet T of the reversing valve IV8; the working port A of the reversing valve IV8 and the working port A of the reversing valve V9 are communicated with the inner bottom of the adsorption tower I1 through pipelines, and the working port B of the reversing valve IV8 and the working port B of the reversing valve V9 are communicated with the inner bottom of the adsorption tower II2 through pipelines.

[0022] like Figures 1 to 3 As shown, control valve I10 and control valve II11 are both two-position two-way reversing valves, and a throttle valve 4 is also connected to the pipeline between the heater 3 and the outlet pipe 37; a one-way valve I13 is also connected to the pipeline between the working port A of the reversing valve II6 and the adsorption tower I1, and a one-way valve II14 is also connected to the pipeline between the working port A of the reversing valve III7 and the adsorption tower II2.

[0023] The present invention also provides a rotating plate 20 matching the inner bottom surface of the adsorption tower Ⅰ1 and the adsorption tower Ⅱ2 respectively horizontally and coaxially, and the rotating plate 20 is horizontally rotatably connected to the inner bottom surface of the corresponding adsorption tower Ⅰ1 or the adsorption tower Ⅱ2 through a rotating assembly; Figures 1 to 3As shown, the inner walls of the adsorption towers Ⅰ1 and Ⅱ2 are coaxially sleeved and fixed with matching slide rails 22 relative to the corresponding rotating plate 20, and each slide rail 22 is a circular ring structure; the outer circumferential surface of each rotating plate 20 is coaxially embedded with an annular groove matching the slide rail 22 relative to the position of the slide rail 22, and the stability of the horizontal rotation of the rotating plate 20 is ensured by the cooperation between the slide rail 22 and the corresponding annular groove; cleaning brushes 23 are vertically fixed at the left and right edges of the upper surface of each rotating plate 20, and each cleaning brush 23 is in close contact with the inner wall of the corresponding adsorption tower Ⅰ1 or adsorption tower Ⅱ2 in the outward direction, and cleans the inner wall of the corresponding adsorption tower Ⅰ1 or adsorption tower Ⅱ2 during the horizontal rotation of the rotating plate 20.

[0024] Each rotating assembly includes a housing 15, a motor 16, a main bevel gear 17, a secondary bevel gear 18, a rotating shaft 19 and a roller assembly 21; Figures 1 to 3 As shown, a box 15 is also horizontally fixedly provided in the middle position of the lower surface of the adsorption tower Ⅰ1 and the adsorption tower Ⅱ2. Each box 15 is a hollow rectangular parallelepiped structure with an open upper surface, and is integrally formed with the corresponding adsorption tower Ⅰ1 or adsorption tower Ⅱ2; a rotating shaft 19 is also vertically provided in the middle position inside each box 15, and the lower end of each rotating shaft 19 is connected to the inner bottom surface of the corresponding box 15 through a bearing for rotation around its own axis, and the upper end thereof extends vertically upward from the inner bottom surface of the corresponding adsorption tower Ⅰ1 or adsorption tower Ⅱ2, and is fixedly connected to the lower surface of the corresponding rotating plate 20 coaxially; on each rotating shaft 19, relative to the inner bottom surface of the corresponding box 15, a rotating shaft 19 is provided. A slave bevel gear 18 is also coaxially sleeved and fixed, and each box body 15 does not interfere with the rotation of the corresponding slave bevel gear 18 with the rotating shaft 19; a motor 16 is horizontally spaced inside each box body 15 relative to the side of the corresponding slave bevel gear 18, and the fixed end of each motor 16 is screwed and fixed to the corresponding inner side surface of the corresponding box body 15, and its output end is arranged in the direction of the corresponding slave bevel gear 18, and is respectively meshed and connected with the corresponding slave bevel gear 18 through the main bevel gear 17, and then, under the drive of the motor 16, through the meshing cooperation of the main bevel gear 17 and the corresponding slave bevel gear 18, the rotating plate 20 rotates horizontally around its own axis with the corresponding rotating shaft 19.

[0025] like Figures 1 to 3 As shown, a circle of roller groups 21 abutting against the lower surface of the corresponding rotating plate 20 is connected to the edge of the inner bottom surface of the adsorption tower Ⅰ1 and the adsorption tower Ⅱ2, and the circle of roller groups 21 are coaxially arranged with the corresponding rotating plate 20, and are respectively arranged without interfering with the corresponding rotating shaft 19; each roller group 21 is conical, and its end close to the corresponding rotating shaft 19 is a small end, and the other end is a large end, so as to adapt to the smaller linear speed close to the rotating shaft 19 when the rotating plate 20 rotates.

[0026] like Figures 1 to 3 As shown, the upper end of the pipe connected to the working port A of the reversing valve IV8 and the working port A of the reversing valve V9 is coaxially embedded in the corresponding rotating shaft 19, and extends vertically and coaxially to the upper surface of the corresponding rotating plate 20, and is connected with the interior of the adsorption tower I1, thereby ensuring that the horizontal rotation of the corresponding rotating plate 20 is not affected; the upper end of the pipe connected to the working port B of the reversing valve IV8 and the working port B of the reversing valve V9 is coaxially embedded in the corresponding rotating shaft 19, and extends vertically and coaxially to the upper surface of the corresponding rotating plate 20, and is connected with the interior of the adsorption tower II2, thereby ensuring that the horizontal rotation of the corresponding rotating plate 20 is not affected.

[0027] In the present invention, a hollow rectangular filter box 29 is connected to the air intake pipe 35, and an activated carbon adsorption plate 30 and a filter screen that match the interior of the filter box 29 are arranged vertically and longitudinally in parallel at intervals on the left and right sides, and the activated carbon adsorption plate 30 is arranged on the side close to the reversing valve V9; the activated carbon adsorption plate 30 and the filter screen are respectively connected to the filter box 29 vertically and upwardly, and the pulling and pulling actions of the two do not interfere with each other, and then the air entering through the air intake pipe 35 is filtered and adsorbed in turn; Figures 1 to 3 As shown, a first pull-out block 26 matching with the filter plate 24 is also vertically fixed on the upper surface thereof, and the upper surface of the first pull-out block 26 extends vertically upward beyond the upper surface of the filter box 29; first limit plates 25 are vertically symmetrically provided on the left and right sides of the portion of the first pull-out block 26 that exceeds the filter box 29, and the lower surface of each first limit plate 25 is fixedly connected to the corresponding position of the upper surface of the filter box 29; a first pin shaft 28 is vertically provided in the middle position of the left side surface of the first limit plate 25 on the left, and the right end of the first pin shaft 28 horizontally passes through the left and right sides in sequence A first limiting plate 25, a first pulling block 26 and a first limiting plate 25 on the right are provided to limit the vertical pulling action of the filter plate 24; a first sealing gasket matching the first pulling block 26 is also sleeved at the joint of the first pulling block 26 and the filter box 29, and the first sealing gasket is embedded and fixedly connected to the filter box 29; a first handle 27 is also vertically provided in the middle position of the upper surface of the first pulling block 26, and the first handle 27 and the two first limiting plates 25 are arranged without interfering with each other, and the pulling action of the filter plate 24 is performed by the first handle 27.

[0028] like Figures 1 to 3As shown, a second pull-out block 32 matching with the activated carbon adsorption plate 30 is also vertically fixed on the upper surface thereof, and the upper surface of the second pull-out block 32 extends vertically upward out of the upper surface of the filter box 29; second limit plates 31 are vertically symmetrically provided on the left and right sides of the second pull-out block 32 that exceeds the filter box 29, and the lower surface of each second limit plate 31 is fixedly connected to the corresponding position of the upper surface of the filter box 29; a second pin shaft 34 is vertically provided in the middle position of the left side surface of the left second limit plate 31, and the right end of the second pin shaft 34 horizontally penetrates the left one to the right in sequence A second limiting plate 31, a second pulling block 32 and a second limiting plate 31 on the right are provided to limit the vertical pulling action of the activated carbon adsorption plate 30; a second sealing gasket matching the second pulling block 32 is also sleeved at the joint between the second pulling block 32 and the filter box 29, and the second sealing gasket is embedded and fixedly connected to the filter box 29; a second handle 33 is also vertically provided in the middle position of the upper surface of the second pulling block 32, and the second handle 33 and the two second limiting plates 31 are arranged without interfering with each other, and the pulling action of the activated carbon adsorption plate 30 is performed by the second handle 33.

[0029] A method for using a regenerative adsorption dryer of the present invention, as follows Figures 1 to 3 As shown, the following steps are included: (1) When adsorption tower Ⅰ1 is adsorbing and adsorption tower Ⅱ2 is regenerating (1.1) First, open the control valve I10 and close the control valve II11, and make sure that the motor 16 is not working; then move the valve core of the reversing valve I5 to the right, so that the inlet P of the reversing valve I5 is connected to its working port B.

[0030] (1.2) Then move the valve core of the reversing valve III7 downward so that the inlet P of the reversing valve III7 is connected to its working port B; at the same time, move the valve core of the reversing valve IV8 to the right so that the working port B of the reversing valve IV8 is connected to its outlet T; and move the valve core of the reversing valve V9 to the left so that the inlet P of the reversing valve V9 is connected to its working port A.

[0031] (1.3) After the air enters the filter box 29 through the air inlet pipe 35 for filtration and adsorption, it enters the interior of the adsorption tower Ⅰ1 for adsorption. The dry regeneration gas flowing out from the top of the adsorption tower Ⅰ1 is collected in turn through the control valve Ⅰ10 and the air outlet pipe 37. A small part of the dry regeneration gas refluxes through the throttle valve 4, and then is heated by the heater 3 and enters the diffuser 12 of the adsorption tower Ⅱ2 in turn through the reversing valve Ⅰ5 and the reversing valve Ⅲ7 to heat the adsorbent in the middle and lower position of the adsorption tower Ⅱ2.

[0032] (1.4) Then, the valve core of the reversing valve III7 is moved upward so that the inlet P of the reversing valve III7 is connected to its working port A. At this time, the heating can be started from the inner top of the adsorption tower II2 downward, and the regenerated gas that absorbs more water is discharged from the bottom of the adsorption tower II2 through the reversing valve IV8 and the exhaust pipe 36 in sequence.

[0033] (2) When adsorption tower II2 is adsorbing and adsorption tower I1 is regenerating (2.1) First, open the control valve II11 and close the control valve I10, and ensure that the motor 16 is not working; then move the valve core of the reversing valve I5 to the left, so that the inlet P of the reversing valve I5 is connected to its working port A.

[0034] (2.2) Then move the valve core of the reversing valve II6 downward so that the inlet P of the reversing valve II6 is connected to its working port B; at the same time, move the valve core of the reversing valve IV8 to the left so that the working port A of the reversing valve IV8 is connected to its outlet T; and move the valve core of the reversing valve V9 to the right so that the inlet P of the reversing valve V9 is connected to its working port B.

[0035] (2.3) After the air enters the filter box 29 through the air inlet pipe 35 for filtration and adsorption, it enters the interior of the adsorption tower Ⅱ2 for adsorption. The dry regeneration gas flowing out from the top of the adsorption tower Ⅱ2 is collected in turn through the control valve Ⅱ11 and the air outlet pipe 37. A small part of the dry regeneration gas refluxes through the throttle valve 4, and then is heated by the heater 3 and enters the diffuser 12 of the adsorption tower Ⅰ1 through the reversing valve Ⅰ5 and the reversing valve Ⅱ6 in turn, heating the adsorbent in the middle and lower position of the adsorption tower Ⅰ1.

[0036] (2.4) Then, the valve core of the reversing valve II6 is moved upward so that the inlet P of the reversing valve II6 is connected to its working port A. At this time, the adsorption tower I1 can be heated downward from the inner top. The regenerated gas that has absorbed more water is discharged from the bottom of the adsorption tower I1 through the reversing valve IV8 and the exhaust pipe 36 in sequence.

[0037] Beneficial effects of the present invention: (1) The present invention can heat the adsorbent in the lower part of the adsorption tower Ⅰ1 or the adsorption tower Ⅱ2 by providing the reversing valve Ⅱ6 and the reversing valve Ⅲ7, and then heat it from the top of the adsorption tower Ⅰ1 or the adsorption tower Ⅱ2, so that the adsorbent in the entire adsorption tower Ⅰ1 or the adsorption tower Ⅱ2 is evenly heated, which not only improves the adsorption capacity of the adsorbent, but also prolongs the service life of the adsorbent, thereby ensuring the quality of the obtained dry compressed air; (2) The present invention can filter and adsorb the air entering the adsorption tower Ⅰ1 or the adsorption tower Ⅱ2 by providing the filter plate 24 and the activated carbon adsorption plate 30, thereby avoiding the occurrence of pipeline blockage; (3) The filter plate 24 and the activated carbon adsorption plate 30 of the present invention are both detachable, which facilitates the maintenance and replacement of the filter plate 24 or the activated carbon adsorption plate 30, thereby improving practicality; (4) The present invention facilitates cleaning of the inner wall of the adsorption tower Ⅰ1 or the adsorption tower Ⅱ2 by using the rotating assembly, the rotating plate 20 and the cleaning brush 23, thereby increasing the service life; (5) The present invention ensures the stability of the cleaning brush 23 during the cleaning process by providing the roller group 21.

[0038] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering technicians in the field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the technical requirements.

Claims

1. A regenerative adsorption dryer, comprising an adsorption tower I and an adsorption tower II; both adsorption towers I and II are filled with adsorbent, and the two have the same structure and are arranged side by side with a left and right interval; characterized in that: It also includes a heater, a reversing valve I, a reversing valve II, a reversing valve III, a reversing valve IV, a reversing valve V, a control valve I, a control valve II, an air inlet pipe, an exhaust pipe and an air outlet pipe; the reversing valve I, the reversing valve II, the reversing valve III, the reversing valve IV and the reversing valve V are all two-position three-way reversing valves, and diffusers are also provided at the middle positions inside the adsorption tower I and the adsorption tower II respectively; one end of the air outlet pipe is connected to one end of the control valve I and the control valve II respectively, and one end of the heater is connected to the air outlet pipe through a pipeline, and the other end thereof is connected to the inlet P of the reversing valve I, the working port A of the reversing valve I is connected to the inlet P of the reversing valve II, and the working port B thereof is connected to the inlet P of the reversing valve III; the working port A of the reversing valve II and the other end of the control valve I are respectively connected to the inlet P of the reversing valve II and the inlet P of the reversing valve III; The control valve Ⅱ is connected to the inner top of the adsorption tower Ⅰ through pipelines, and the working port B of the reversing valve Ⅱ is connected to the diffuser in the adsorption tower Ⅰ through pipelines; the working port A of the reversing valve Ⅲ and the other end of the control valve Ⅱ are connected to the inner top of the adsorption tower Ⅱ through pipelines, and the working port B of the reversing valve Ⅲ is connected to the diffuser in the adsorption tower Ⅱ through pipelines; one end of the air inlet pipe is connected to the inlet P of the reversing valve Ⅴ, and one end of the exhaust pipe is connected to the outlet T of the reversing valve Ⅳ; the working port A of the reversing valve Ⅳ and the working port A of the reversing valve Ⅴ are connected to the inner bottom of the adsorption tower Ⅰ through pipelines, and the working port B of the reversing valve Ⅳ and the working port B of the reversing valve Ⅴ are connected to the inner bottom of the adsorption tower Ⅱ through pipelines.

2. A regenerative adsorption dryer according to claim 1, characterized in that: It also includes a one-way valve I, a one-way valve II and a throttle valve; the control valve I and the control valve II are both two-position two-way reversing valves, and a throttle valve is also connected on the pipeline between the heater and the air outlet pipe; a one-way valve I is also connected on the pipeline between the working port A of the reversing valve II and the adsorption tower I, and a one-way valve II is also connected on the pipeline between the working port A of the reversing valve III and the adsorption tower II.

3. A regenerative adsorption dryer according to claim 1, characterized in that: It also includes a rotating assembly, a rotating plate, a slide rail and a cleaning brush; a rotating plate matching the same is also horizontally and coaxially provided on the inner bottom surface of the adsorption tower I and the adsorption tower II, and the rotating plates are horizontally rotatably connected to the inner bottom surface of the corresponding adsorption tower I or the adsorption tower II through the rotating assembly; a slide rail matching the same is also coaxially sleeved and fixed on the inner wall of the adsorption tower I and the adsorption tower II relative to the corresponding rotating plate position, and each of the slide rails is a circular ring structure; an annular groove matching the slide rail is also coaxially embedded in the outer circumferential surface of each rotating plate relative to the slide rail position, and the cooperation between the slide rail and the corresponding annular groove ensures the stability of the horizontal rotation of the rotating plate; cleaning brushes are also vertically fixed on the left and right edges of the upper surface of each rotating plate, and the cleaning brush of each cleaning brush is in close contact with the inner wall of the corresponding adsorption tower I or the adsorption tower II in the outward direction, and cleans the inner wall of the corresponding adsorption tower I or the adsorption tower II during the horizontal rotation of the rotating plate.

4. A regenerative adsorption dryer according to claim 3, characterized in that: Each of the rotating components includes a housing, a motor, a main bevel gear, a slave bevel gear and a rotating shaft; a housing is also horizontally fixedly provided in the middle position of the lower surface of the adsorption tower I and the adsorption tower II, and each of the housings is a hollow rectangular parallelepiped structure with an open upper surface, and is respectively integrally formed with the corresponding adsorption tower I or adsorption tower II; a rotating shaft is also vertically provided in the middle position inside each of the housings, and the lower end of each rotating shaft is respectively connected to the inner bottom surface of the corresponding housing through a bearing for rotation around its own axial direction, and the upper end thereof is respectively vertically extended upward from the inner bottom surface of the corresponding adsorption tower I or adsorption tower II, and is respectively coaxially fixed to the lower surface of the corresponding rotating plate The gears are fixedly connected; on each of the rotating shafts, a slave bevel gear is coaxially sleeved and fixed relative to the corresponding housing, and each of the housings does not interfere with the rotation of the corresponding slave bevel gear along with the rotating shaft; inside each of the housings, a motor is horizontally spaced relative to one side of the corresponding slave bevel gear, and the fixed end of each motor is screwed and fixed to the corresponding inner side surface of the housing, and the output end thereof is arranged toward the direction of the corresponding slave bevel gear, and is respectively meshed and connected with the corresponding slave bevel gear through the main bevel gear, and then, driven by the motor, the rotating plate rotates horizontally around its own axis along with the corresponding rotating shaft through the meshing cooperation of the main bevel gear and the corresponding slave bevel gear.

5. A regenerative adsorption dryer according to claim 4, characterized in that: They also include roller groups; a circle of roller groups abutting against the lower surface of the corresponding rotating plate is connected to the edge of the inner bottom surface of the adsorption tower I and the adsorption tower II, and the roller groups in this circle are coaxially arranged with the corresponding rotating plate, and are respectively arranged without interfering with the corresponding rotating shaft; each of the roller groups is conical, and the end close to the corresponding rotating shaft is a small end, and the other end is a large end, so as to adapt to the smaller linear speed close to the rotating shaft when the rotating plate rotates.

6. A regenerative adsorption dryer according to claim 4, characterized in that: The upper end of the pipe connected with the working port A of the reversing valve IV and the working port A of the reversing valve V is coaxially embedded in the corresponding rotating shaft, and extends coaxially vertically upward to the upper surface of the corresponding rotating plate, and is connected with the interior of the adsorption tower I, thereby ensuring that the horizontal rotation of the corresponding rotating plate is not affected; the upper end of the pipe connected with the working port B of the reversing valve IV and the working port B of the reversing valve V is coaxially embedded in the corresponding rotating shaft, and extends coaxially vertically upward to the upper surface of the corresponding rotating plate, and is connected with the interior of the adsorption tower II, thereby ensuring that the horizontal rotation of the corresponding rotating plate is not affected.

7. A regenerative adsorption dryer according to claim 1, characterized in that: It also includes a filter box, a filter plate and an activated carbon adsorption plate; a hollow rectangular filter box is also connected to the air intake pipe, and activated carbon adsorption plates and filter screens matching the interior of the filter box are vertically and longitudinally parallelly arranged at left and right intervals inside the filter box, and the activated carbon adsorption plate is ensured to be arranged on the side close to the reversing valve V; the activated carbon adsorption plate and filter screen are respectively connected to the filter box vertically and upwardly, and the pulling and pulling actions of the two do not interfere with each other, thereby filtering and adsorbing the air entering through the air intake pipe in turn.

8. A regenerative adsorption dryer according to claim 7, characterized in that: It also includes a first limit plate, a first pull-out block, a first handle and a first pin; a first pull-out block matching with it is also vertically fixed on the upper surface of the filter plate, and the upper surface of the first pull-out block extends vertically upward from the upper surface of the filter box; first limit plates are also vertically symmetrically arranged on the left and right sides of the first pull-out block beyond the filter box, and the lower surface of each of the first limit plates is respectively fixedly connected to the corresponding position of the upper surface of the filter box; a first pin is also vertically arranged in the middle position of the left side of the first limit plate on the left, and the right end of the first pin horizontally passes through the first limit plate on the left, the first pull-out block and the first limit plate on the right in sequence, and limits the vertical pulling action of the filter plate; a first sealing gasket matching with the first pull-out block is also sleeved at the joint of the first pull-out block and the filter box, and the first sealing gasket is embedded and fixedly connected with the filter box; a first handle is also vertically arranged in the middle position of the upper surface of the first pull-out block, and the first handle and the two first limit plates are arranged without interfering with each other, and the filter plate is pulled and pulled by the first handle.

9. A regenerative adsorption dryer according to claim 7, characterized in that: The filter housing further comprises a second limit plate, a second pull-out block, a second handle and a second pin shaft; a second pull-out block matching the second limit plate is vertically fixed on the upper surface of the activated carbon adsorption plate, and the upper surface of the second pull-out block extends vertically upward out of the upper surface of the filter box; second limit plates are vertically symmetrically arranged on the left and right sides of the second pull-out block that exceeds the filter box, and the lower surface of each of the second limit plates is fixedly connected to the corresponding position of the upper surface of the filter box; a second pin shaft is vertically arranged in the middle position of the left side surface of the second limit plate on the left, and the right end of the second pin shaft It penetrates the second limiting plate on the left, the second pull-out block and the second limiting plate on the right horizontally to the right, and limits the vertical pulling action of the activated carbon adsorption plate; a second sealing gasket matching the second pulling block is also sleeved at the joint between the second pulling block and the filter box, and the second sealing gasket is embedded and fixedly connected to the filter box; a second handle is also vertically provided in the middle position of the upper surface of the second pulling block, and the second handle and the two second limiting plates are arranged without interfering with each other, and the activated carbon adsorption plate is pulled and pulled by the second handle.

10. The method for using a regenerative adsorption dryer according to any one of claims 1 to 9, characterized in that The following steps are involved: (1) When adsorption tower I is adsorbing and adsorption tower II is regenerating (1.1) First, open control valve I and close control valve II, and make sure the motor is not working; then move the valve core of reversing valve I to the right, so that the inlet P of reversing valve I is connected with its working port B; (1.2) Then move the valve core of the reversing valve III downward so that the inlet P of the reversing valve III is connected to its working port B; at the same time, move the valve core of the reversing valve IV to the right so that the working port B of the reversing valve IV is connected to its outlet T; and move the valve core of the reversing valve V to the left so that the inlet P of the reversing valve V is connected to its working port A; (1.3) After the air enters the filter box through the air inlet pipe for filtration and adsorption, it enters the interior of the adsorption tower I for adsorption. The dry regeneration gas flowing out from the top of the adsorption tower I is collected through the control valve I and the air outlet pipe in turn. A small part of the dry regeneration gas flows back through the throttle valve, and then after being heated by the heater, it enters the diffuser of the adsorption tower II through the reversing valve I and reversing valve III in turn, heating the adsorbent at the middle and lower position of the adsorption tower II; (1.4) Then move the valve core of reversing valve III upwards, so that the inlet P of reversing valve III is connected with its working port A. At this time, heating can be started from the top of adsorption tower II downwards, and the regenerated gas that absorbs more water is discharged from the bottom of adsorption tower II through reversing valve IV and exhaust pipe in sequence; (2) When adsorption tower II is adsorbing and adsorption tower I is regenerating (2.1) First, open control valve II and close control valve I, and make sure the motor is not working; then move the valve core of reversing valve I to the left, so that the inlet P of reversing valve I is connected with its working port A; (2.2) Then move the valve core of reversing valve II downward so that the inlet P of reversing valve II is connected to its working port B; at the same time, move the valve core of reversing valve IV to the left so that the working port A of reversing valve IV is connected to its outlet T; and move the valve core of reversing valve V to the right so that the inlet P of reversing valve V is connected to its working port B; (2.3) After the air enters the filter box through the air inlet pipe for filtration and adsorption, it enters the interior of the adsorption tower II for adsorption. The dry regeneration gas flowing out from the top of the adsorption tower II is collected through the control valve II and the air outlet pipe in turn. A small part of the dry regeneration gas flows back through the throttle valve, and then after being heated by the heater, it enters the diffuser of the adsorption tower I through the reversing valve I and reversing valve II in turn, heating the adsorbent at the middle and lower position of the adsorption tower I; (2.4) Then move the valve core of reversing valve II upwards so that the inlet P of reversing valve II is connected with its working port A. At this time, heating can be started from the top of the adsorption tower I downwards, and the regenerated gas that absorbs more water is discharged from the bottom of the adsorption tower I through the reversing valve IV and the exhaust pipe in turn.

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