Waste heat regeneration adsorption type drying machine and using method thereof

Abstract

The invention relates to the technical field of drying machines, and discloses a waste heat regeneration adsorption type drying machine and a using method thereof.The waste heat regeneration adsorption type drying machine comprises a support, a first adsorption tower and a second adsorption tower are fixedly installed on the support, and the top of the first adsorption tower and the top of the second adsorption tower are each communicated with an upper insertion pipe; according to the invention, air flow paths for introducing and discharging air at three stages of drying, regeneration and cold blowing are basically the same, and the air is ensured to be uniformly distributed on an adsorbent bed layer through the air flow uniform distribution assembly, so that local overload is avoided; the utilization rate and the regeneration effect of the adsorbent are improved, the adsorbent can be uniformly utilized in the drying stage, the high-temperature gas can cover the adsorbent to the maximum extent in the regeneration stage, the regeneration effect is ensured, the low-temperature gas comprehensively cools the adsorbent in the high-temperature state in the cold blowing stage, and guarantee is provided for the subsequent adsorption efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of dryers, and particularly relates to a waste heat regenerative adsorption dryer and a using method thereof. Background Art

[0002] The waste heat regenerative adsorption dryer usually has two adsorption towers filled with adsorbents. During the working process, one adsorption tower is in the adsorption state to dry the incoming wet compressed air; the other adsorption tower uses the waste heat of the high-temperature compressed air discharged from the air compressor for regeneration to restore the adsorption capacity of the adsorbent. By periodically switching the working states of the two adsorption towers, continuous and stable output of dry compressed air is achieved. After the adsorption tower completes the heating regeneration, the temperature of the adsorbent will be relatively high. Therefore, a cold blow process needs to be introduced to cool down the adsorbent with low-temperature gas.

[0003] In the traditional waste heat regenerative adsorption dryer, the gas flow paths in the three stages of drying, regeneration, and cold blow are independent and fixed, resulting in the phenomenon of regional overload and regeneration failure of the adsorbent in the adsorption tower. The specific manifestations are as follows: In the drying stage, the wet compressed air enters the adsorption tower from the first inlet and penetrates the adsorption layer along a specific path. The adsorbent in the area with dense gas flow quickly saturates due to frequent contact with moisture, forming a local overload area. Subsequently, in the regeneration stage, the high-temperature regeneration gas is introduced into the adsorption tower in the reverse direction from the second inlet. Due to different gas flow paths, the high-temperature gas flushes the area different from the gas flow path in the drying stage. The adsorbent in the overload area is not thoroughly regenerated because it does not fully contact the high-temperature gas. Finally, in the cold blow stage, the low-temperature cooling gas is introduced through the third inlet. However, due to the misalignment of the gas flow path with the previous two stages, the cold blow acts on the area not fully covered in the regeneration stage, and there is still adsorbent in a high-temperature state, resulting in a decrease in the subsequent adsorption efficiency. Based on this, the present invention purposefully provides a waste heat regenerative adsorption dryer and a using method thereof that can dynamically cover the entire adsorption layer with the gas flow paths in the three stages of drying, regeneration, and cold blow. Summary of the Invention

[0004] The purpose of the present invention is to provide a waste heat regenerative adsorption dryer and a using method thereof for the deficiencies of the prior art to solve the technical problems in the prior art.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A waste heat regenerative adsorption dryer, which includes a bracket. A first adsorption tower and a second adsorption tower are fixedly installed on the bracket. An upper insertion pipe is connected to the top of each of the first adsorption tower and the second adsorption tower, and a lower insertion pipe is connected to the bottom of each of the first adsorption tower and the second adsorption tower. An adsorbent bed layer is arranged inside each of the first adsorption tower and the second adsorption tower, and the adsorbent bed layer is located between the upper insertion pipe and the lower insertion pipe. Each upper insertion pipe is connected to three first conveying pipes. The three first conveying pipes are respectively used for discharging dry air, introducing high-temperature air, and introducing low-temperature air. And when one first conveying pipe is opened, the other two first conveying pipes are closed. Each lower insertion pipe is connected to three second conveying pipes. The three second conveying pipes are respectively used for introducing humid air, discharging air containing moisture, and discharging heated air. And when one second conveying pipe is opened, the other two second conveying pipes are closed;

[0007] The first conveying pipes on each first adsorption tower are connected to the first conveying pipes on the second adsorption tower through a first three-way stop valve. The first three-way stop valve controls the alternating opening and closing of the two first conveying pipes thereon. The second conveying pipes on each first adsorption tower are connected to the second conveying pipes on the second adsorption tower through a second three-way stop valve. The second three-way stop valve controls the alternating opening and closing of the two second conveying pipes thereon. And the three first three-way stop valves are respectively connected to the three second three-way stop valves through three circulation components. The three circulation components respectively control the drying stage, the regeneration stage, and the cold blow stage;

[0008] An air flow distribution component. An air flow distribution component is connected to each upper insertion pipe and each lower insertion pipe. The air flow distribution component is used for radially distributing air along the adsorbent bed layer.

[0009] As a further scheme of the present invention: each air flow distribution component includes a rotating pipe, a transverse pipe, a first opening, and a driving component. The rotating pipe is rotatably installed inside the upper insertion pipe, and the rotating pipe is communicated with the upper insertion pipe. The rotating pipe is driven to rotate by the driving component. The transverse pipe is communicated with the rotating pipe, and the axis of the transverse pipe is parallel to the adsorbent bed layer. A plurality of first openings are equally spaced on the transverse pipe, and the plurality of first openings are arranged radially along the adsorbent bed layer. The first openings face the adsorbent bed layer.

[0010] As a further scheme of the present invention: the number of the transverse pipes is two, and the two transverse pipes are symmetrically arranged with respect to the rotating pipe.

[0011] As a further solution of the present invention: The driving assembly includes a fixed block, a driving wheel, a transmission belt and a driven wheel. The fixed block is fixedly installed on the first adsorption tower. One end of the fixed block is located inside the first adsorption tower, and a driving wheel is rotatably installed at this end. The driving wheel is driven to rotate by a first output source built in the fixed block. The driven wheel is sleeved on the outer circumferential surface of the rotating pipe, and the driven wheel is fixedly connected to the rotating pipe coaxially. The driven wheel is rotationally connected to the fixed block through the transmission belt.

[0012] As a further solution of the present invention: The air flow distribution assembly further includes a second opening, a third opening and a switching assembly. The second opening and the third opening are both opened on the horizontal pipe, and the first opening, the second opening and the third opening are arranged at equal intervals around the circumference of the horizontal pipe. The switching assembly is arranged on the horizontal pipe and cooperates with the first opening, the second opening and the third opening. When the horizontal pipe is used to introduce air, the switching assembly controls the first opening to open, and at this time the second opening and the third opening are closed; when the horizontal pipe is used to discharge air, the switching assembly controls the first opening, the second opening and the third opening to all open.

[0013] As a further solution of the present invention: The switching assembly includes a sleeve, a first through hole, a second through hole, a third through hole, a fourth through hole and a linkage assembly. The sleeve is sleeved on the outer circumferential surface of the horizontal pipe, and the sleeve is rotationally connected to the horizontal pipe. The sleeve is driven to rotate by a linkage assembly arranged on the rotating pipe. The first through hole, the second through hole, the third through hole and the fourth through hole are all opened on the sleeve. The second through hole, the third through hole and the fourth through hole are arranged around the circumference of the sleeve, and the fourth through hole is symmetrically arranged with the first through hole about the axis of the sleeve. When the horizontal pipe is used to discharge air, the linkage assembly drives the sleeve to rotate so that the first through hole is aligned with the first opening, and at this time the sleeve blocks the second opening and the third opening; when the horizontal pipe is used to discharge air, the linkage assembly drives the sleeve to rotate so that the fourth through hole is aligned with the first opening, and at this time the second through hole and the third through hole are respectively aligned with the second opening and the third opening.

[0014] As a further solution of the present invention: The linkage assembly includes a driven gear, a driving gear and a driving gear. The driven gear is sleeved on the outer circumferential surface of the sleeve and is fixedly connected to the sleeve coaxially. The driving gear is rotatably installed on the outer circumferential surface of the rotating pipe. The driving gear meshes with the driven gear. The driving gear is rotatably installed on the rotating pipe, and the driving gear is driven to rotate by a second output source built in the rotating pipe. The driving gear meshes with the driving gear.

[0015] A method for using a waste heat regenerative adsorption dryer, which is applied to a waste heat regenerative adsorption dryer as described above. The method includes the following steps:

[0016] Step S1: First, control the circulation component in the drying stage to introduce humid air from the second three-way stop valve, then introduce it into the lower insertion tube through the first second delivery tube, and finally introduce it into the first adsorption tower. The humid air undergoes physical adsorption through the adsorbent bed layer, and then becomes dry air and is discharged successively through the upper insertion tube, the first first delivery tube, and the first three-way stop valve;

[0017] Step S2: When the adsorbent bed layer in the first adsorption tower needs to be regenerated after long-term use, at this time, control the circulation component in the drying stage to introduce humid air into the second adsorption tower, repeat the operation of Step S1, and at the same time control the circulation component in the regeneration stage to introduce high-temperature air from the first three-way stop valve, then introduce it into the upper insertion tube through the second first delivery tube, and finally introduce it into the first adsorption tower. The high-temperature air undergoes adsorption regeneration through the adsorbent bed layer, and then becomes air containing moisture and is discharged successively through the lower insertion tube, the second second delivery tube, and the second three-way stop valve;

[0018] Step S3: Subsequently, control the circulation component in the cold blow stage to introduce low-temperature air from the first three-way stop valve, then introduce it into the upper insertion tube through the third first delivery tube, and finally introduce it into the first adsorption tower. The low-temperature air undergoes a cooling effect through the adsorbent bed layer, and then becomes heated air and is discharged successively through the lower insertion tube, the third second delivery tube, and the second three-way stop valve;

[0019] Step S4: When the adsorbent bed layer in the second adsorption tower needs to be regenerated, repeat Steps S1 - S3 and swap the action objects of the three circulation components.

[0020] Advantages of the present invention:

[0021] 1. In the present invention, through the setting of the upper insertion tube and the lower insertion tube, the gas introduction and discharge air flow paths in the three stages of drying, regeneration, and cold blow are basically the same, and the air flow distribution component is used to ensure that the gas is evenly distributed onto the adsorbent bed layer, avoiding local overload, improving the utilization rate of the adsorbent and the regeneration effect. Moreover, in the drying stage, the adsorbent can be evenly utilized. In the regeneration stage, the high-temperature gas can cover the adsorbent to the greatest extent to ensure the regeneration effect. In the cold blow stage, the low-temperature gas comprehensively cools the adsorbent in a high-temperature state, providing a guarantee for the subsequent adsorption efficiency;

[0022] 2. In the present invention, the three groups of gases commonly use the upper insertion tube and the lower insertion tube. By reasonably arranging the gas flow path, the effective utilization of energy is achieved. The air heated during the cold blow stage can preheat the lower insertion tube, providing a preheating effect for the subsequent entry of humid air. Moreover, the dry air produced during the drying stage can keep the upper insertion tube in a dry state. Thus, when the high-temperature air enters from the upper insertion tube during the regeneration stage, it is beneficial to maintain a high-temperature and dry state, reducing energy loss.

[0023] 3. In the present invention, when the horizontal tube is used to introduce air, the switching component controls the first opening to open, while the second opening and the third opening are closed at this time. The gas can only be ejected from the first opening, thus directly spraying onto the adsorbent bed layer, enabling the gas and the adsorbent bed layer to act quickly and improving the efficiency. When the horizontal tube is used to discharge air, the switching component controls the first opening, the second opening, and the third opening to all open. At this time, the three rows of holes are used to absorb the gas, making it easier to suck the gas into the horizontal tube and increasing the speed of collecting the gas. Brief Description of the Drawings

[0024] The present invention will be further described below in conjunction with the drawings.

[0025] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a schematic sectional view of the first adsorption tower in the present invention;

[0027] Figure 3 is a schematic diagram of the rotating tube in the present invention;

[0028] Figure 4 is a schematic sectional view of the horizontal tube and the sleeve in the present invention;

[0029] Figure 5 is a schematic diagram of the connection structure between the rotating tube and the driven wheel in the present invention.

[0030] In the figure: 1. Bracket; 2. First adsorption tower; 3. Second adsorption tower; 4. Upper insertion tube; 401. First delivery tube; 5. Lower insertion tube; 501. Second delivery tube; 6. Adsorbent bed layer; 7. Rotating tube; 8. Horizontal tube; 801. First opening; 802. Second opening; 803. Third opening; 9. Sleeve; 901. First through hole; 902. Second through hole; 903. Third through hole; 904. Fourth through hole; 10. Driven gear; 11. Driving gear; 12. Driving gear; 13. Fixed block; 14. Driving wheel; 15. Transmission belt; 16. Driven wheel; 17. First three-way stop valve; 18. Second three-way stop valve. Detailed Embodiments

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1-5 As shown, the present invention is a waste heat regenerative adsorption dryer, which includes a bracket 1. A first adsorption tower 2 and a second adsorption tower 3 are fixedly installed on the bracket 1. An upper insertion pipe 4 is connected to the top of each of the first adsorption tower 2 and the second adsorption tower 3, and a lower insertion pipe 5 is connected to the bottom of each of the first adsorption tower 2 and the second adsorption tower 3. An adsorbent bed layer 6 is arranged inside each of the first adsorption tower 2 and the second adsorption tower 3. The adsorbent bed layer 6 is located between the upper insertion pipe 4 and the lower insertion pipe 5. Each upper insertion pipe 4 is connected to three first conveying pipes 401. The three first conveying pipes 401 are respectively used to discharge dry air, introduce high-temperature air, and introduce low-temperature air. When one first conveying pipe 401 is opened, the other two first conveying pipes 401 are closed. Each lower insertion pipe 5 is connected to three second conveying pipes 501. The three second conveying pipes 501 are respectively used to introduce humid air, discharge air containing moisture, and discharge heated air. When one second conveying pipe 501 is opened, the other two second conveying pipes 501 are closed;

[0033] The first conveying pipes 401 on each first adsorption tower 2 are connected to the first conveying pipes 401 on the second adsorption tower 3 through a first three-way stop valve 17. The first three-way stop valve 17 controls the alternating opening and closing of the two first conveying pipes 401 thereon. The second conveying pipes 501 on each first adsorption tower 2 are connected to the second conveying pipes 501 on the second adsorption tower 3 through a second three-way stop valve 18. The second three-way stop valve 18 controls the alternating opening and closing of the two second conveying pipes 501 thereon. And the three first three-way stop valves 17 are respectively connected to the three second three-way stop valves 18 through three circulation components. The three circulation components respectively control the drying stage, the regeneration stage, and the cold blow stage;

[0034] An air flow distribution component. An air flow distribution component is connected to each upper insertion pipe 4 and each lower insertion pipe 5. The air flow distribution component is used to radially distribute air along the adsorbent bed layer 6.

[0035] In one case of this embodiment, a differential pressure sensor is arranged inside the first adsorption tower 2 and the second adsorption tower 3. The differential pressure sensor is used to monitor whether the adsorbent bed layer 6 is close to saturation and whether a regeneration program needs to be started.

[0036] Working principle of the present invention: First, the circulating component in the drying stage is controlled to introduce humid air from the second three-way stop valve 18, then introduce it into the lower insertion pipe 5 through the first second delivery pipe 501, and finally introduce it into the first adsorption tower 2. The humid air undergoes physical adsorption through the adsorbent bed layer 6, and then becomes dry air and is discharged successively through the upper insertion pipe 4, the first first delivery pipe 401, and the first three-way stop valve 17. After long-term use, the differential pressure sensor monitors that the adsorbent bed layer 6 is approaching saturation. At this time, the circulating component in the drying stage is controlled to introduce humid air into the second adsorption tower 3, so as to continue the work in the drying stage in the second adsorption tower 3, ensure the continuity of producing dry compressed air, and at the same time control the circulating component in the regeneration stage to introduce high-temperature air from the first three-way stop valve 17, then introduce it into the upper insertion pipe 4 through the second first delivery pipe 401, and finally introduce it into the first adsorption tower 2. The high-temperature air undergoes adsorption regeneration through the adsorbent bed layer 6, and then becomes air containing moisture and is discharged successively through the lower insertion pipe 5, the second second delivery pipe 501, and the second three-way stop valve 18. In this way, the adsorbent bed layer 6 in the first adsorption tower 2 is subjected to adsorption regeneration operation. Subsequently, the circulating component in the cold blow stage is controlled to introduce low-temperature air from the first three-way stop valve 17, then introduce it into the upper insertion pipe 4 through the third first delivery pipe 401, and finally introduce it into the first adsorption tower 2. The low-temperature air cools down through the adsorbent bed layer 6, and then becomes heated air and is discharged successively through the lower insertion pipe 5, the third second delivery pipe 501, and the second three-way stop valve 18. Specifically, the upper insertion pipe 4 and the lower insertion pipe 5 are symmetrically distributed and are actually the same, only the installation positions are different. The gases in different stages enter the first adsorption tower 2 from the upper insertion pipe 4 and the lower insertion pipe 5. Therefore, the gas flow paths of the gases in different stages are basically the same, and air flow distribution components are provided on both the upper insertion pipe 4 and the lower insertion pipe 5, which can evenly distribute the gas onto the adsorbent bed layer 6. In this way, in the drying stage, the adsorbent bed layer 6 can be evenly utilized to avoid local overload, and in the regeneration stage, the high-temperature gas can also cover the adsorbent bed layer 6 to the greatest extent to ensure the regeneration effect of the adsorbent bed layer 6. Finally, in the cold blow stage, the low-temperature gas cools down the adsorbent in the high-temperature state in the adsorbent bed layer 6 comprehensively to ensure the subsequent adsorption efficiency;

[0037] Moreover, the three groups of gases jointly use the upper insertion pipe 4 and the lower insertion pipe 5. When in the cold blow stage, the heated air will pass through the lower insertion pipe 5. At this time, the temperature in the lower insertion pipe 5 will be relatively high. Then, when entering the drying stage, the humid air enters from the lower insertion pipe 5. Then, the relatively high temperature in the lower insertion pipe 5 can preheat the humid air, and the completely dry air will be discharged from the upper insertion pipe 4. In the regeneration stage after the drying stage, the introduced high-temperature air enters from the upper insertion pipe 4. Then, the dry environment in the upper insertion pipe 4 is conducive to maintaining the high-temperature and dry state of the high-temperature air.

[0038] As shown Figures 1-5 in the figure, as a preferred embodiment of the present invention, each of the air flow distribution components includes a rotating tube 7, a transverse tube 8, a first opening 801, and a driving component. The rotating tube 7 is rotatably installed in the upper insertion tube 4, and the rotating tube 7 is in communication with the upper insertion tube 4. The rotating tube 7 is driven by the driving component to rotate. The transverse tube 8 is in communication with the rotating tube 7, and the axis of the transverse tube 8 is parallel to the adsorbent bed 6. A plurality of first openings 801 are equally spaced on the transverse tube 8, and the plurality of first openings 801 are arranged radially along the adsorbent bed 6. The first opening 801 faces the adsorbent bed 6.

[0039] In actual application of this embodiment, taking the rotating tube 7 connected to the upper insertion tube 4 as an example, of course, the rotating tube 7 on the lower insertion tube 5 is also applicable. Specifically, after the gas enters the rotating tube 7, it will fill the rotating tube 7 and the transverse tube 8. As Figure 2 shown in the figure, the axis of the transverse tube 8 is parallel to the adsorbent bed 6. Subsequently, the gas will gush out from the first opening 801, and the first opening 801 faces the adsorbent bed 6. Therefore, the gas will spray from each first opening 801 onto the adsorbent bed 6. During the process of spraying the gas, the driving component drives the rotating tube 7 to rotate. In this way, the gas shoots out from the rotating first opening 801, forming a spiral progressive coverage path, so that the gas is evenly distributed on the adsorbent bed 6.

[0040] As Figures 1-5 shown in the figure, as a preferred embodiment of the present invention, the number of the transverse tubes 8 is two, and the two transverse tubes 8 are symmetrically arranged with respect to the rotating tube 7.

[0041] In actual application of this embodiment, through the two symmetrically arranged transverse tubes 8, the efficiency of spraying the gas can be improved, and the overall working efficiency can be improved.

[0042] As Figures 1-5 shown in the figure, as a preferred embodiment of the present invention, the driving component includes a fixed block 13, a driving wheel 14, a transmission belt 15, and a driven wheel 16. The fixed block 13 is fixedly installed on the first adsorption tower 2. One end of the fixed block 13 is located inside the first adsorption tower 2, and a driving wheel 14 is rotatably installed at this end. The driving wheel 14 is driven to rotate by a first output source built in the fixed block 13. The driven wheel 16 is sleeved on the outer circumferential surface of the rotating tube 7, and the driven wheel 16 is coaxially and fixedly connected to the rotating tube 7. The driven wheel 16 is rotatably connected to the fixed block 13 through the transmission belt 15.

[0043] In one case of this embodiment, the first output source can be selected from components such as a servo motor and a servo motor, and other mechanisms capable of realizing rotational motion can also be selected. This embodiment does not make specific limitations here.

[0044] In practical application of this embodiment, the first output source drives the driving wheel 14 to rotate. The driving wheel 14 drives the driven wheel 16 to rotate synchronously through the transmission belt 15, and the driven wheel 16 drives the rotating pipe 7 to rotate, so as to achieve the effect of the first opening 801 rotating and spraying gas.

[0045] As Figures 1-5 shown, as a preferred embodiment of the present invention, the air flow uniform distribution assembly further includes a second opening 802, a third opening 803 and a switching assembly. The second opening 802 and the third opening 803 are both opened on the horizontal pipe 8, and the first opening 801, the second opening 802 and the third opening 803 are arranged at equal intervals around the circumference of the horizontal pipe 8. The switching assembly is arranged on the horizontal pipe 8 and cooperates with the first opening 801, the second opening 802 and the third opening 803. When the horizontal pipe 8 is used to introduce air, the switching assembly controls the first opening 801 to open, and at this time the second opening 802 and the third opening 803 are closed; when the horizontal pipe 8 is used to discharge air, the switching assembly controls the first opening 801, the second opening 802 and the third opening 803 to all open.

[0046] In practical application of this embodiment, since the first opening 801 faces the adsorbent bed 6, when the horizontal pipe 8 is used to introduce air, the switching assembly controls the first opening 801 to open, and at this time the second opening 802 and the third opening 803 are closed, and the gas can only be ejected from the first opening 801, so as to be directly sprayed onto the adsorbent bed 6, enabling the gas and the adsorbent bed 6 to act quickly, improving the efficiency. When the horizontal pipe 8 is used to discharge air, the switching assembly controls the first opening 801, the second opening 802 and the third opening 803 to all open. At this time, the three rows of holes are used to absorb the gas, and it is easier to suck the gas into the horizontal pipe 8. Especially in the regeneration stage and the cold blow stage, the gas passing through the adsorbent bed 6 contains a small amount of moisture. If the gas is not quickly sucked into the horizontal pipe 8 and discharged, the gas containing moisture is likely to be adsorbed on the inner wall of the first adsorption tower 2 and condensed into water droplets. In this way, this situation can be avoided.

[0047] As Figures 1-5As shown, as a preferred embodiment of the present invention, the switching component includes a sleeve 9, a first through hole 901, a second through hole 902, a third through hole 903, a fourth through hole 904, and a linkage component. The sleeve 9 is sleeved on the outer cylindrical surface of the horizontal pipe 8, and the sleeve 9 is rotatably connected to the horizontal pipe 8. Moreover, the sleeve 9 is driven to rotate by the linkage component provided on the rotating pipe 7. The first through hole 901, the second through hole 902, the third through hole 903, and the fourth through hole 904 are all formed in the sleeve 9. The second through hole 902, the third through hole 903, and the fourth through hole 904 are arranged circumferentially around the sleeve 9, and the fourth through hole 904 and the first through hole 901 are arranged symmetrically about the axis of the sleeve 9. When the horizontal pipe 8 is used to discharge air, the linkage component drives the sleeve 9 to rotate, so that the first through hole 901 is aligned with the first opening 801. At this time, the sleeve 9 blocks the second opening 802 and the third opening 803. When the horizontal pipe 8 is used to discharge air, the linkage component drives the sleeve 9 to rotate, so that the fourth through hole 904 is aligned with the first opening 801. At this time, the second through hole 902 and the third through hole 903 are respectively aligned with the second opening 802 and the third opening 803.

[0048] In actual application of this embodiment, when the horizontal pipe 8 is used to discharge air, the linkage component drives the sleeve 9 to rotate, so that the fourth through hole 904 is aligned with the first opening 801. The second through hole 902, the third through hole 903, and the fourth through hole 904 are arranged circumferentially, and the first opening 801, the second opening 802, and the third opening 803 are also arranged circumferentially. Therefore, the second through hole 902 and the third through hole 903 are respectively aligned with the second opening 802 and the third opening 803. When the horizontal pipe 8 is used to discharge air, the linkage component drives the sleeve 9 to rotate, so that the first through hole 901 is aligned with the first opening 801. Since the first through hole 901 and the fourth through hole 904 are symmetrically arranged, the fourth through hole 904 cooperates with the outer cylindrical surface of the horizontal pipe 8, which means that the second through hole 902 and the third through hole 903 are both misaligned with the second opening 802 and the third opening 803, that is, the sleeve 9 blocks the second opening 802 and the third opening 803, thereby achieving the purpose that only the first opening 801 can eject gas. Such a setting can achieve different effects only by rotating the sleeve 9, thereby optimizing the air inlet and outlet effects.

[0049] As Figures 1-3 As shown, as a preferred embodiment of the present invention, the linkage component includes a driven gear 10, a driving gear 11, and a drive gear 12. The driven gear 10 is sleeved on the outer cylindrical surface of the sleeve 9, and the two are coaxially and fixedly connected. The driving gear 11 is rotatably installed on the outer cylindrical surface of the rotating pipe 7. The driving gear 11 meshes with the driven gear 10. The drive gear 12 is rotatably installed on the rotating pipe 7, and the drive gear 12 is driven to rotate by a second output source built in the rotating pipe 7. The drive gear 12 meshes with the driving gear 11.

[0050] In one case of this embodiment, the second output source can be selected from components such as servo motors and servo motors, or other mechanisms capable of realizing rotational motion can also be selected. This embodiment does not make specific limitations here.

[0051] In the actual application of this embodiment, when the second output source drives the driving gear 12 to rotate, since the driving gear 12 meshes with the driving gear 11, it can drive the driving gear 11 to rotate synchronously. The driving gear 11 meshes with the driven gear 10, so that the driven gear 10 can be rotated, thereby driving the sleeve 9 to rotate on the horizontal pipe 8, realizing the switching of the number of inlet / outlet holes on the horizontal pipe 8, so as to match the requirements of introducing gas and absorbing gas.

[0052] Please refer to Figures 1-5 As shown, the present invention is a method for using a waste heat regenerative adsorption dryer, and the method is applied to a waste heat regenerative adsorption dryer as described in the above embodiment. The method includes the following steps:

[0053] Step S1: First, control the circulation component in the drying stage to introduce humid air from the second three-way stop valve 18, then introduce it into the lower insertion pipe 5 through the first second delivery pipe 501, and finally introduce it into the first adsorption tower 2. The humid air undergoes physical adsorption through the adsorbent bed layer 6, and then becomes dry air and is discharged successively through the upper insertion pipe 4, the first first delivery pipe 401, and the first three-way stop valve 17;

[0054] Step S2: When the adsorbent bed layer 6 in the first adsorption tower 2 needs to be regenerated after long-term use, at this time, control the circulation component in the drying stage to introduce humid air into the second adsorption tower 3, repeat the operation of Step S1, and at the same time control the circulation component in the regeneration stage to introduce high-temperature air from the first three-way stop valve 17, then introduce it into the upper insertion pipe 4 through the second first delivery pipe 401, and finally introduce it into the first adsorption tower 2. The high-temperature air undergoes adsorption regeneration through the adsorbent bed layer 6, and then becomes air containing moisture and is discharged successively through the lower insertion pipe 5, the second second delivery pipe 501, and the second three-way stop valve 18;

[0055] Step S3: Subsequently, control the circulation component in the cold blow stage to introduce low-temperature air from the first three-way stop valve 17, then introduce it into the upper insertion pipe 4 through the third first delivery pipe 401, and finally introduce it into the first adsorption tower 2. The low-temperature air undergoes a cooling effect through the adsorbent bed layer 6, and then becomes heated air and is discharged successively through the lower insertion pipe 5, the third second delivery pipe 501, and the second three-way stop valve 18;

[0056] Step S4: When the adsorbent bed layer 6 in the second adsorption tower 3 needs to be regenerated, repeat Steps S1 - S3 and swap the action objects of the three circulation components.

[0057] The above has described an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the present invention application shall still fall within the scope covered by the patent of the present invention.

Claims

1. A waste heat regeneration adsorption dryer, characterized in that: The invention comprises a support (1), on which a first adsorption tower (2) and a second adsorption tower (3) are fixedly mounted, the tops of the first adsorption tower (2) and the second adsorption tower (3) are both connected to an upper insertion pipe (4), the bottoms of the first adsorption tower (2) and the second adsorption tower (3) are both connected to a lower insertion pipe (5), the first adsorption tower (2) and the second adsorption tower (3) are both provided with an adsorbent bed layer (6) inside, the adsorbent bed layer (6) is located between the upper insertion pipe (4) and the lower insertion pipe (5), and each of the upper insertion pipes (4) is connected to three first adsorption towers (4) and the lower insertion pipe (5). The delivery pipes (401) are connected, the three first delivery pipes (401) are respectively used to discharge dry air, introduce high-temperature air and introduce low-temperature air, and when one first delivery pipe (401) is opened, the other two first delivery pipes (401) are closed, each of the lower insertion pipes (5) is connected to the three second delivery pipes (501), the three second delivery pipes (501) are respectively used to introduce humid air, discharge air containing moisture and discharge heated air, and when one second delivery pipe (501) is opened, the other two second delivery pipes (501) are closed; The first delivery pipe (401) on each first adsorption tower (2) is connected to the first delivery pipe (401) on the second adsorption tower (3) via a first three-way stop valve (17), the first three-way stop valve (17) controls the two first delivery pipes (401) thereon to be opened and closed alternately, the second delivery pipe (501) on each first adsorption tower (2) is connected to the second delivery pipe (501) on the second adsorption tower (3) via a second three-way stop valve (18), the second three-way stop valve (18) controls the two second delivery pipes (501) thereon to be opened and closed alternately, and the three first three-way stop valves (17) are connected to the three second three-way stop valves (18) via three circulation components, respectively, and the three circulation components respectively control the drying stage, the regeneration stage and the cold blowing stage; An airflow distribution component is provided. Each upper insertion tube (4) and each lower insertion tube (5) is connected with an airflow distribution component. The airflow distribution component is used to distribute air radially along the adsorbent bed layer (6).

2. The waste heat regeneration adsorption dryer according to claim 1, characterized in that: Each of the air flow distribution components comprises a rotating tube (7), a transverse tube (8), a first opening (801) and a driving component. The rotating tube (7) is rotatably installed in the upper insertion tube (4), and the rotating tube (7) is connected to the upper insertion tube (4). The rotating tube (7) is driven to rotate by the driving component. The transverse tube (8) is connected to the rotating tube (7), and the axis of the transverse tube (8) is parallel to the adsorbent bed (6). A plurality of first openings (801) are equidistantly arranged on the transverse tube (8), and the plurality of first openings (801) are radially arranged along the adsorbent bed (6), and the first openings (801) face the adsorbent bed (6).

3. The waste heat regeneration adsorption dryer according to claim 2, characterized in that: The number of the transverse tubes (8) is two, and the two transverse tubes (8) are symmetrically arranged with respect to the rotating tube (7).

4. The waste heat regeneration adsorption dryer according to claim 2, characterized in that: The driving assembly comprises a fixed block (13), a driving wheel (14), a transmission belt (15) and a driven wheel (16); the fixed block (13) is fixedly mounted on the first adsorption tower (2); one end of the fixed block (13) is located in the first adsorption tower (2), and the driving wheel (14) is rotatably mounted on the end; the driving wheel (14) is driven to rotate by a first output source built into the fixed block (13); the driven wheel (16) is sleeved on the outer circumferential surface of the rotating tube (7), and the driven wheel (16) is coaxially fixedly connected to the rotating tube (7); and the driven wheel (16) is rotatably connected to the fixed block (13) via the transmission belt (15).

5. The waste heat regeneration adsorption dryer according to claim 1, characterized in that: The air flow distribution component further comprises a second opening (802), a third opening (803) and a switching component. The second opening (802) and the third opening (803) are both opened on the transverse tube (8), and the first opening (801), the second opening (802) and the third opening (803) are arranged at equal intervals about the circumference of the transverse tube (8). The switching component is arranged on the transverse tube (8), and the switching component cooperates with the first opening (801), the second opening (802) and the third opening (803). When the transverse tube (8) is used to introduce air, the switching component controls the first opening (801) to be opened, and at this time, the second opening (802) and the third opening (803) are closed; when the transverse tube (8) is used to exhaust air, the switching component controls the first opening (801), the second opening (802) and the third opening (803) to be opened.

6. The waste heat regeneration adsorption dryer according to claim 5, characterized in that: The switching assembly comprises a sleeve (9), a first through hole (901), a second through hole (902), a third through hole (903), a fourth through hole (904) and a linkage assembly. The sleeve (9) is sleeved on the outer circumferential surface of the transverse tube (8). The sleeve (9) is rotatably connected to the transverse tube (8), and the sleeve (9) is driven to rotate by the linkage assembly arranged on the rotating tube (7). The first through hole (901), the second through hole (902), the third through hole (903) and the fourth through hole (904) are all arranged on the sleeve (9). The second through hole (902), the third through hole (903) and the fourth through hole (904) are arranged on the circumference of the sleeve (9). Assume that the fourth through hole (904) and the first through hole (901) are symmetrically arranged about the axis of the sleeve (9); when the transverse tube (8) is used to exhaust air, the linkage assembly drives the sleeve (9) to rotate so that the first through hole (901) is aligned with the first opening (801), and at this time the sleeve (9) blocks the second opening (802) and the third opening (803); when the transverse tube (8) is used to exhaust air, the linkage assembly drives the sleeve (9) to rotate so that the fourth through hole (904) is aligned with the first opening (801), and at this time the second through hole (902) and the third through hole (903) are aligned with the second opening (802) and the third opening (803) respectively.

7. The waste heat regeneration adsorption dryer according to claim 6, characterized in that: The linkage assembly comprises a driven gear (10), a driving gear (11) and a driving gear (12); the driven gear (10) is sleeved on the outer circumferential surface of the sleeve (9), and the two are coaxially fixedly connected; the driving gear (11) is rotatably mounted on the outer circumferential surface of the rotating tube (7); the driving gear (11) meshes with the driven gear (10); the driving gear (12) is rotatably mounted on the rotating tube (7); the driving gear (12) is driven to rotate by a second output source built into the rotating tube (7); and the driving gear (12) meshes with the driving gear (11).

8. A method for using a waste heat regeneration adsorption dryer, characterized in that: The method is applied to a waste heat regeneration adsorption dryer as described in any one of claims 1 to 7, and the method comprises the following steps: Step S1: first, the humid air is introduced from the second three-way stop valve (18) through the circulation component controlling the drying stage, then introduced into the lower insertion pipe (5) through the first second delivery pipe (501), and finally introduced into the first adsorption tower (2), the humid air is physically adsorbed by the adsorbent bed (6), and then becomes dry air and is discharged through the upper insertion pipe (4), the first first delivery pipe (401) and the first three-way stop valve (17) in sequence; Step S2: When the adsorbent bed (6) in the first adsorption tower (2) needs to be regenerated after long-term use, the circulation component in the drying stage is controlled to introduce moist air into the second adsorption tower (3), and the operation of step S1 is repeated. At the same time, the circulation component in the regeneration stage is controlled to introduce high-temperature air from the first three-way stop valve (17), and then introduced into the upper insertion tube (4) through the second first delivery pipe (401), and finally introduced into the first adsorption tower (2). The high-temperature air passes through the adsorbent bed (6) for adsorption regeneration, and then becomes air containing moisture and is discharged through the lower insertion tube (5), the second second delivery pipe (501) and the second three-way stop valve (18) in sequence; Step S3: Subsequently, the low-temperature air is introduced from the first three-way stop valve (17) by controlling the circulation component of the cold blowing stage, and then introduced into the upper insertion tube (4) through the third first delivery pipe (401), and finally introduced into the first adsorption tower (2). The low-temperature air is cooled by the adsorbent bed (6), and then becomes heated air and is discharged through the lower insertion tube (5), the third second delivery pipe (501) and the second three-way stop valve (18) in sequence; Step S4: When the adsorbent bed (6) in the second adsorption tower (3) needs to be regenerated, steps S1 to S3 are repeated and the objects of action of the three circulation components are reversed.

Images