Adsorption type drying machine

Abstract

The utility model discloses an adsorption type drying machine which comprises a compressor, a first adsorption tower, a second adsorption tower, an air blower and a heater, and a first jacket and a second jacket are arranged outside the first adsorption tower and the second adsorption tower; the compressor, the first adsorption tower and the second adsorption tower are sequentially connected, the first adsorption tower and the second adsorption tower are respectively connected with the air outlet pipe, the compressor is further connected with the second adsorption tower, the air blower is connected with the heater, the heater is respectively connected with the first adsorption tower and the second adsorption tower, the first adsorption tower is connected with the first jacket, and the second adsorption tower is connected with the second jacket; the first adsorption tower and the second adsorption tower are internally provided with a plurality of drying agent transverse plates which are arranged at intervals up and down, and a plurality of drying agent folded plates are connected between every two drying agent transverse plates which are adjacent up and down; and guide plates are arranged in the first jacket and the second jacket. According to the drying machine, the working efficiency of the drying machine can be improved, the honeycomb-shaped adsorption structure is beneficial to increasing the adsorption and desorption speed, hot air waste heat can be fully utilized to evaporate moisture in the drying agent, and energy is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of dryers, in particular to an adsorption dryer. Background Art

[0002] Current adsorption dryers typically operate by alternating between two adsorption towers, one for adsorption and the other for desorption, continuously dehumidifying the air. Currently, the desiccant plates within the adsorption towers are arranged in multiple layers. Too many layers can affect airflow velocity, while too few layers can affect dehumidification effectiveness. The number of desiccant plates is difficult to control, and during desorption, the heated air passes through layers of desiccant plates to remove the adsorbed moisture. Heat from the air is continuously lost to the environment throughout the process, resulting in slow desorption and high energy consumption. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an adsorption dryer, which aims to solve the technical problems in the prior art that the arrangement of the desiccant plates in the traditional adsorption tower affects the air flow velocity or dehumidification effect, and has a slow desorption speed and high energy consumption.

[0004] The technical solution of the utility model is: an adsorption dryer, comprising a compressor, a first adsorption tower, a second adsorption tower, a blower, and a heater, wherein the first adsorption tower and the second adsorption tower are provided with a first jacket and a second jacket on their exteriors respectively;

[0005] A first air inlet pipe is provided between the compressor and the first adsorption tower, and a first air inlet valve is provided on the first air inlet pipe; an intermediate connecting pipe is provided between the first adsorption tower and the second adsorption tower, and an intermediate control valve A and an intermediate control valve B are provided on the intermediate connecting pipe; an output end of the second adsorption tower is connected to a first air outlet pipe, and a first air outlet valve is provided on the first air outlet pipe;

[0006] A second intake pipe is connected to the first intake pipe between the compressor and the first intake valve, the other end of which is connected to the intermediate connecting pipe between the intermediate control valve A and the intermediate control valve B, and the second intake pipe is provided with a second intake valve; a second outlet pipe is also connected to the intermediate connecting pipe between the intermediate control valve A and the intermediate control valve B, and the second outlet pipe is provided with a second outlet valve;

[0007] The blower is connected to the heater, and the output end of the heater is connected to a first desorption tube and a second desorption tube; the other end of the first desorption tube is connected to the intermediate connecting tube between the first adsorption tower and the intermediate control valve A, and the first desorption tube is provided with a first hot air inlet valve, and the other end of the second desorption tube is connected to the intermediate connecting tube between the second adsorption tower and the intermediate control valve B, and the second desorption tube is provided with a second hot air inlet valve; the first air inlet pipe between the first adsorption tower and the first air inlet valve is connected to a first hot air circulation pipe, the other end of the first hot air circulation pipe is connected to the first jacket, and the first hot air circulation pipe is provided with a first circulation control valve, the first air outlet pipe between the second adsorption tower and the first air outlet valve is connected to a second hot air circulation pipe, the other end of the second hot air circulation pipe is connected to the second jacket, and the second hot air circulation pipe is provided with a second circulation control valve;

[0008] The first adsorption tower and the second adsorption tower are both provided with a plurality of desiccant horizontal plates arranged at intervals in an upper and lower manner, and a plurality of desiccant folding plates are connected between two adjacent desiccant horizontal plates; the first jacket and the second jacket are both provided with guide plates for guiding the flow of hot air.

[0009] Furthermore, in the present invention, the first hot air circulation pipe is connected to the lower part of the first jacket, and the upper part of the first jacket is also connected to the first air outlet pipe; the second hot air circulation pipe is connected to the lower part of the second jacket, and the upper part of the second jacket is also connected to the second air outlet pipe.

[0010] Furthermore, the desiccant folding plate in the present invention is formed by splicing together a plurality of sections of desiccant support plates, and the angle between the two upper and lower spliced ​​desiccant support plates is greater than 90 degrees.

[0011] Furthermore, in the present invention, the two adjacent desiccant folded plates are arranged in opposite directions, the upper and lower sides of each desiccant folded plate are respectively connected to the two upper and lower desiccant horizontal plates, and the two side edges of each desiccant folded plate are respectively connected to the inner wall of the first adsorption tower or the second adsorption tower.

[0012] Furthermore, in the present invention, at least one baffle is connected between two adjacent desiccant folding plates, and the baffle is connected to the folding points where the two adjacent desiccant folding plates are close to each other.

[0013] Furthermore, in the utility model, the upper and lower ends of the first jacket are in contact with the outer wall of the first adsorption tower, and the upper and lower ends of the second jacket are in contact with the outer wall of the second adsorption tower. The first jacket and the second jacket both have cavities inside, and a plurality of guide plates are arranged at intervals up and down in the cavity. The two adjacent guide plates are arranged opposite to each other, and the guide plates are fixedly mounted on the inner wall of the first jacket or the second jacket.

[0014] Furthermore, the guide plate in the present invention is arranged to fit the outer wall of the first adsorption tower or the second adsorption tower, and the guide plate is arc-shaped, and the curvature of the guide plate is greater than 180 degrees.

[0015] Compared with the prior art, the utility model has the following advantages: the utility model can control the two adsorption towers to adsorb at the same time, or to operate one adsorption and one desorption continuously by switching the valve, thereby improving the working efficiency of the dryer; the desiccant horizontal plate, the desiccant folding plate, and the baffle are combined and installed into a honeycomb adsorption structure in the adsorption tower, which not only increases the layout area of ​​the desiccant, but also increases the flow path of the air, while ensuring that the air has a good flow speed, thereby helping to accelerate the adsorption and desorption speed and improve the working efficiency of the dryer; in addition, the hot air introduced into the adsorption tower for desorption of the desiccant will be further sent to the jacket, and will be deflected and flowed upward under the action of the guide plate, further making full use of the residual heat of the hot air to evaporate the moisture in the desiccant, saving energy and achieving a better desorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the operating state of the utility model using dual towers for simultaneous adsorption (wherein the solid arrows indicate the direction of air flow);

[0017] Figure 2 This is a schematic diagram of the operating state of the utility model using the second adsorption tower for adsorption and the first adsorption tower for desorption (wherein the solid arrows represent the flow direction of air, and the dotted hollow arrows represent the flow direction of hot air);

[0018] Figure 3 This is a schematic diagram of the operating state of the utility model using the first adsorption tower for adsorption and the second adsorption tower for desorption (wherein the solid arrows represent the flow direction of air, and the dotted hollow arrows represent the flow direction of hot air);

[0019] Figure 4 This is a schematic diagram of the overall structure of the first adsorption tower and the first jacket in the present invention;

[0020] Figure 5 for Figure 4 AA cross-sectional view;

[0021] Figure 6It is a three-dimensional diagram of the desiccant folding plate described in the present utility model;

[0022] Figure 7 This is a schematic diagram of the specific arrangement of the guide plate described in the present utility model.

[0023] Wherein: 1. compressor; 2. first adsorption tower; 3. second adsorption tower; 4. blower; 5. heater; 6. first jacket; 7. second jacket; 8. desiccant horizontal plate; 9. desiccant folding plate; 9a. desiccant support plate; 10. baffle; 11. cavity; 12. guide plate;

[0024] L1, first air inlet pipe; L2, middle connecting pipe; L3, first air outlet pipe; L4, second air inlet pipe; L5, second air outlet pipe; L6, first desorption pipe; L7, second desorption pipe; L8, first hot air circulation pipe; L9, second hot air circulation pipe; L 10 , the first air outlet pipe; L 11 , the second air outlet pipe;

[0025] P1, first intake valve; P 21 , intermediate control valve A; P 22 , intermediate control valve B; P3, first air outlet valve; P4, second air inlet valve; P5, second air outlet valve; P6, first hot air inlet valve; P7, second hot air inlet valve; P8, first circulation control valve; P9, second circulation control valve. DETAILED DESCRIPTION

[0026] The following is a detailed description of the specific implementation of the present invention with reference to the accompanying drawings.

[0027] Example:

[0028] The following is a specific embodiment of the adsorption dryer of the present invention. Figure 1 It mainly includes a compressor 1, a first adsorption tower 2, a second adsorption tower 3, a blower 4, and a heater 5. The outside of the first adsorption tower 2 is provided with a first jacket 6, and the outside of the second adsorption tower 3 is provided with a second jacket 7.

[0029] A first air inlet pipe L1 is provided between the compressor 1 and the bottom end of the first adsorption tower 2, and a first air inlet valve P1 is provided on the first air inlet pipe L1. An intermediate connecting pipe L2 is provided between the top end of the first adsorption tower 2 and the top end of the second adsorption tower 3, and an intermediate control valve AP is provided on the intermediate connecting pipe L2. 21 and intermediate control valve BP 22 , intermediate control valve AP 21 Set near the first adsorption tower 2, intermediate control valve BP 22It is arranged close to the second adsorption tower 3. The output end of the second adsorption tower 3 is connected to a first gas outlet pipe L3, and a first gas outlet valve P3 is provided on the first gas outlet pipe L3.

[0030] The first intake pipe L1 between the compressor 1 and the first intake valve P1 is connected to the second intake pipe L4, and the other end of the second intake pipe L4 is connected to the intermediate control valve AP 21 With intermediate control valve BP 22 A second intake valve P4 is provided on the intermediate connecting pipe L2 and the second intake pipe L4.

[0031] Intermediate control valve AP 21 With intermediate control valve BP 22 The middle connecting pipe L2 is also connected to a second air outlet pipe L5, and the second air outlet pipe L5 is provided with a second air outlet valve P5.

[0032] The blower 4 is connected to the heater 5, and the output end of the heater 5 is connected in parallel with the first desorption pipe L6 and the second desorption pipe L7. The other end of the first desorption pipe L6 is connected to the top of the first adsorption tower 2 and the intermediate control valve AP 21 The first hot air inlet valve P6 is provided on the intermediate connecting pipe L2 between the first desorption pipe L6 and the second desorption pipe L7. The other end of the second desorption pipe L7 is connected to the top of the second adsorption tower 3 and the intermediate control valve BP. 22 A second hot air inlet valve P7 is provided on the intermediate connecting pipe L2 and the second desorption pipe L7.

[0033] The first air inlet pipe L1 between the bottom end of the first adsorption tower 2 and the first air inlet valve P1 is connected to the first hot air circulation pipe L8. The other end of the first hot air circulation pipe L8 is connected to the lower part of the first jacket 6. The first hot air circulation pipe L8 is provided with a first circulation control valve P8. The upper part of the first jacket 6 is also connected to the first air outlet pipe L 10 .

[0034] The first outlet pipe L3 between the bottom end of the second adsorption tower 3 and the first outlet valve P3 is connected to the second hot air circulation pipe L9, the other end of the second hot air circulation pipe L9 is connected to the lower part of the second jacket 7, the second hot air circulation pipe L9 is provided with a second circulation control valve P9, and the upper part of the second jacket 7 is also connected to the second outlet pipe L 11 .

[0035] The internal structures of the first adsorption tower 2 and the second adsorption tower 3 are the same. Figure 4 、 Figure 5 Taking the first adsorption tower 2 as an example, a plurality of desiccant horizontal plates 8 are arranged in an upper and lower interval arrangement in the first adsorption tower 2, and a plurality of desiccant folding plates 9 are connected between two adjacent desiccant horizontal plates 8. Figure 6The specific structure of the desiccant folding plate 9 is as follows: the desiccant folding plate 9 is formed by splicing together several sections of desiccant support plates 9a into a corrugated plate shape, and the angle between the two upper and lower spliced ​​desiccant support plates 9a is greater than 90 degrees. When the desiccant folding plate 9 is installed, the two adjacent desiccant folding plates 9 are arranged in opposite directions, and the upper and lower sides of each desiccant folding plate 9 are respectively connected to the two upper and lower desiccant cross plates 8, and the two side edges of each desiccant folding plate 9 are respectively connected to the inner wall of the first adsorption tower 2. At least one baffle 10 is also connected between the two adjacent desiccant folding plates 9, and the baffle 10 is connected to the folding point where the two adjacent desiccant folding plates 9 are close to each other. In addition, at least one baffle 10 is also connected between the edge desiccant folding plate 9 and the inner wall of the first adsorption tower 2, and one end of the baffle 10 is connected to the folding point of the desiccant folding plate 9 close to the inner wall of the first adsorption tower 2, and the other end is connected to the inner wall of the first adsorption tower 2. The first adsorption tower 2 is equipped with a honeycomb-shaped adsorption structure by combining the desiccant horizontal plate 8, the desiccant folding plate 9, and the baffle 10. This not only increases the layout area of ​​the desiccant, but also increases the air flow path while ensuring that the air has a good flow rate, thereby helping to speed up the adsorption and desorption speeds and improve the working efficiency of the dryer.

[0036] The internal structures of the first jacket 6 and the second jacket 7 are the same. Figure 5 、 Figure 7 Taking the first jacket 6 as an example, the first jacket 6 is cylindrical, with its upper and lower ends aligned with the outer wall of the first adsorption tower 2. The first jacket 6 has a cavity 11 within it, and the inner wall of the first jacket 6 and the outer wall of the first adsorption tower 2 form a uniform annular gap. Within this annular gap, a plurality of guide plates 12 are spaced apart vertically. Two adjacent guide plates 12 are centrally symmetrically distributed about a point on the central axis of the first jacket 6 (this point is not at the height of any guide plate 12). The guide plates 12 are fixedly mounted on the inner wall of the first jacket 6, with the inner sides aligned with the outer wall of the first adsorption tower 2. The guide plates 12 are curved, with an arc greater than 180 degrees and less than 360 degrees. The hot air entering the first jacket 6 is deflected upward by the guide plates 12, further utilizing the residual heat of the hot air to evaporate the moisture from the desiccant in the first adsorption tower 2, saving energy and improving the desorption effect.

[0037] When the adsorption dryer of this embodiment is in operation, the first adsorption tower 2 and the second adsorption tower 3 can be controlled by switching valves to perform adsorption simultaneously, or to perform adsorption and desorption continuously, thereby improving the working efficiency of the dryer.

[0038] Specifically, when the first adsorption tower 2 and the second adsorption tower 3 are used for simultaneous adsorption, Figure 1 As shown, open the first intake valve P1 and the intermediate control valve AP 21 , intermediate control valve BP22 The first outlet valve P3 is closed, and the other valves are closed. Compressor 1 flows air through the first inlet pipe L1 into the first adsorption tower 2 for adsorption. The air then flows through the intermediate connecting pipe L2 into the second adsorption tower 3 for secondary adsorption. The resulting dry air is discharged through the first outlet pipe L3.

[0039] When the second adsorption tower 3 is used for adsorption and the first adsorption tower 2 for desorption, Figure 2 As shown, open the second intake valve P4 and the intermediate control valve BP 22 , the first air outlet valve P3, the first hot air inlet valve P6, the first circulation control valve P8, and the remaining valves are closed. The compressor 1 flows the air into the second adsorption tower 3 through the first air inlet pipe L1, the second air inlet pipe L4, and the intermediate connecting pipe L2 for adsorption, and the obtained dry air is discharged through the first air outlet pipe L3. At the same time, the blower 4 heats the external air through the heater 5 and sends it into the first adsorption tower 2 through the first desorption pipe L6 and the intermediate connecting pipe L2 to desorb the desiccant in the first adsorption tower 2. Then the hot air will continue to be sent to the first jacket 6 through the first hot air circulation pipe L8, and will be deflected and flow upward under the action of the guide plate 12, further making full use of the residual heat of the hot air to evaporate the moisture in the desiccant in the first adsorption tower 2. The hot air finally passes through the first air outlet pipe L 10 discharge.

[0040] When the first adsorption tower 2 is used for adsorption and the second adsorption tower 3 for desorption, as shown in FIG. Figure 3 As shown, open the first intake valve P1 and the intermediate control valve AP 21 , the second air outlet valve P5, the second hot air inlet valve P7, the second circulation control valve P9, and the remaining valves are closed. The compressor 1 flows the air into the first adsorption tower 2 through the first air inlet pipe L1 for adsorption, and the obtained dry air is discharged through the intermediate connecting pipe L2 and the second air outlet pipe L5. At the same time, the blower 4 heats the outside air through the heater 5 and sends it into the second adsorption tower 3 through the second desorption pipe L7 and the intermediate connecting pipe L2 to desorb the desiccant in the second adsorption tower 3. Then the hot air will continue to be sent to the second jacket 7 through the second hot air circulation pipe L9, and will be deflected and flowed upward under the action of the guide plate 12, further making full use of the residual heat of the hot air to evaporate the moisture in the desiccant in the second adsorption tower 3. The hot air will finally pass through the second air outlet pipe L 11 discharge.

[0041] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any modifications based on the spirit of the main technical solution of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An adsorption dryer, characterized in that: It comprises a compressor (1), a first adsorption tower (2), a second adsorption tower (3), a blower (4), and a heater (5); the first adsorption tower (2) and the second adsorption tower (3) are respectively provided with a first jacket (6) and a second jacket (7); A first air inlet pipe (L1) is provided between the compressor (1) and the first adsorption tower (2), and a first air inlet valve (P1) is provided on the first air inlet pipe (L1); an intermediate connecting pipe (L2) is provided between the first adsorption tower (2) and the second adsorption tower (3), and an intermediate control valve A (P 21 ) and intermediate control valve B (P 22 The output end of the second adsorption tower (3) is connected to a first gas outlet pipe (L3), and the first gas outlet pipe (L3) is provided with a first gas outlet valve (P3); A second intake pipe (L4) is connected to the first intake pipe (L1) between the compressor (1) and the first intake valve (P1), and the other end of the second intake pipe (L4) is connected to the intermediate control valve A (P 21 ) and intermediate control valve B (P 22 ) between the intermediate connecting pipe (L2), the second intake pipe (L4) is provided with a second intake valve (P4); the intermediate control valve A (P 21 ) and intermediate control valve B (P 22 ) is also connected to a second air outlet pipe (L5), and a second air outlet valve (P5) is provided on the second air outlet pipe (L5); The blower (4) is connected to the heater (5), and the output end of the heater (5) is connected to a first desorption tube (L6) and a second desorption tube (L7); the other end of the first desorption tube (L6) is connected to the first adsorption tower (2) and the intermediate control valve A (P 21 ), the first desorption pipe (L6) is provided with a first hot air inlet valve (P6), and the other end of the second desorption pipe (L7) is connected between the second adsorption tower (3) and the intermediate control valve B (P 22 ) is connected to the intermediate connecting pipe (L2) between the first adsorption tower (2) and the first air inlet valve (P1), and the second desorption pipe (L7) is provided with a second hot air inlet valve (P7); the first hot air circulation pipe (L8) is connected to the first air inlet pipe (L1) between the first adsorption tower (2) and the first air inlet valve (P1), the other end of the first hot air circulation pipe (L8) is connected to the first jacket (6), and the first hot air circulation pipe (L8) is provided with a first circulation control valve (P8); the second hot air circulation pipe (L9) is connected to the first air outlet pipe (L3) between the second adsorption tower (3) and the first air outlet valve (P3), the other end of the second hot air circulation pipe (L9) is connected to the second jacket (7), and the second hot air circulation pipe (L9) is provided with a second circulation control valve (P9); The first adsorption tower (2) and the second adsorption tower (3) are both provided with a plurality of desiccant horizontal plates (8) spaced apart in an upper and lower arrangement, and a plurality of desiccant folding plates (9) are connected between two adjacent desiccant horizontal plates (8); and the first jacket (6) and the second jacket (7) are both provided with guide plates (12) for guiding the flow of hot air.

2. The adsorption dryer according to claim 1, characterized in that: The first hot air circulation pipe (L8) is connected to the lower part of the first jacket (6), and the upper part of the first jacket (6) is also connected to the first air outlet pipe (L 10 ), the second hot air circulation pipe (L9) is connected to the lower part of the second jacket (7), and the upper part of the second jacket (7) is also connected to the second air outlet pipe (L 11 ).

3. The adsorption dryer according to claim 1, characterized in that: The desiccant folding plate (9) is formed by splicing together a plurality of sections of desiccant support plates (9a), and the angle between the two upper and lower spliced ​​desiccant support plates (9a) is greater than 90 degrees.

4. The adsorption dryer according to claim 3, characterized in that: The two adjacent desiccant folding plates (9) are arranged in opposite directions, and the upper and lower sides of each desiccant folding plate (9) are respectively connected to the upper and lower two desiccant horizontal plates (8), and the two side edges of each desiccant folding plate (9) are respectively connected to the inner wall of the first adsorption tower (2) or the second adsorption tower (3).

5. The adsorption dryer according to claim 4, characterized in that: At least one baffle plate (10) is connected between two adjacent desiccant folding plates (9), and the baffle plate (10) is connected to the folding points where the two adjacent desiccant folding plates (9) are close to each other.

6. The adsorption dryer according to claim 1, characterized in that: The upper and lower ends of the first jacket (6) are in contact with the outer wall of the first adsorption tower (2), and the upper and lower ends of the second jacket (7) are in contact with the outer wall of the second adsorption tower (3). The first jacket (6) and the second jacket (7) both have cavities (11) inside. A plurality of guide plates (12) are arranged in an upper and lower interval in the cavity (11). Two upper and lower adjacent guide plates (12) are arranged opposite to each other. The guide plates (12) are fixedly mounted on the inner wall of the first jacket (6) or the second jacket (7).

7. The adsorption dryer according to claim 6, characterized in that: The guide plate (12) is arranged in contact with the outer wall of the first adsorption tower (2) or the second adsorption tower (3); the guide plate (12) is arc-shaped, and the arc of the guide plate (12) is greater than 180 degrees.

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