Rotary wheel dehumidifying and drying system

Abstract

The utility model discloses a rotary wheel dehumidifying and drying system which comprises a dehumidifying rotary wheel, a drying device, a drying device and a control device. The dehumidifying rotary wheel is divided into an adsorption treatment area, a desorption regeneration area and a cooling area; the air inlet side of the front surface air cooler is connected with the air outlet side of an air supply pipeline, the air outlet side of the front surface air cooler is connected with a first air outlet branch and a second air outlet branch which are arranged in parallel, the first air outlet branch is communicated with the air inlet side of the adsorption treatment area, and the second air outlet branch is communicated with the air inlet side of the cooling area; the gas inlet side of the regeneration pipeline is communicated with the gas outlet side of the cooling area, a regeneration heater is arranged on the regeneration pipeline, and the gas outlet side of the regeneration pipeline is communicated with the gas inlet side of the desorption regeneration area. The cooling area is additionally arranged on the rotating wheel, cooling air exchanges heat with the rotating wheel through the cooling area of the rotating wheel, heat of the rotating wheel is taken away, the temperature of the rotating wheel is reduced, the dehumidification performance and efficiency of the rotating wheel in the adsorption treatment area are improved, and stable operation of the dehumidification system is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotating wheel dehumidification technical field more particularly, relate to a kind of rotating wheel dehumidification drying system. BACKGROUND

[0002] In plastics, chemical industry, food and many other industries, the processing of many materials needs to remove moisture in them, otherwise it will affect the subsequent material forming and quality problems. Traditional drying methods such as hot air drying have low drying efficiency, high energy consumption and other problems. The emergence of rotating wheel dehumidification drying technology can effectively reduce the moisture content of air through the principle of adsorbing moisture in air, thereby providing dry air for material production or storage environment with strict humidity requirements, and can accurately control the humidity of the drying environment, improve drying efficiency and reduce energy consumption.

[0003] The prior art divides the dehumidification wheel into a moisture absorption zone and a regeneration zone, and the regeneration effect of the wheel determines the dehumidification efficiency of the whole wheel to a great extent. In order to ensure the regeneration efficiency of the wheel, the heated air needs to be directly blown to the regeneration zone of the dehumidification wheel to increase the temperature of the moisture absorbent in the wheel. However, the water adsorbed in the moisture absorbent is desorbed to form water vapor, which is discharged from the wheel with the regeneration air. The regenerated wheel continues to rotate and returns to the moisture absorption zone, and the cycle is repeated to achieve continuous dehumidification.

[0004] Although this design ensures the regeneration efficiency of the wheel during dehumidification, the use of high-temperature air for desorption in the regeneration zone causes the regenerated wheel to rotate at a high temperature to the wheel adsorption zone. At a high temperature, water molecules are not conducive to being adsorbed in the moisture absorbent, thereby significantly reducing the moisture absorption efficiency of the dehumidification wheel.

[0005] Therefore, how to provide a rotating wheel dehumidification drying system that can simultaneously ensure dehumidification capacity and regeneration capacity has become a technical problem that needs to be solved in the field. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a rotating wheel dehumidification drying system that can simultaneously ensure dehumidification capacity and regeneration capacity.

[0007] The utility model provides a kind of rotating wheel dehumidification drying system, comprising:

[0008] Dehumidification wheel, the dehumidification wheel is divided into adsorption processing zone, desorption regeneration zone and cooling zone;

[0009] Front surface cooler, the air inlet side of the front surface cooler is connected to the air outlet side of the air supply pipeline, the air outlet side of the front surface cooler is connected with the parallelly arranged first air outlet branch and second air outlet branch, the first air outlet branch is communicated with the air inlet side of the adsorption processing zone, and the second air outlet branch is communicated with the air inlet side of the cooling zone;

[0010] A regenerative pipeline, whose air inlet side is communicated with the air outlet side of the cooling zone, is provided with a regenerative heater, and the air outlet side of the regenerative pipeline is communicated with the air inlet side of the desorption regeneration zone.

[0011] Optionally, the system further comprises a material bin, and the air outlet of the material bin is connected to the air inlet side of the air supply pipeline.

[0012] The air outlet side of the adsorption treatment zone is communicated with an adsorption pipeline.

[0013] The air outlet side of the desorption regeneration zone is communicated with a desorption pipeline, and the desorption pipeline is provided with a post-cooler.

[0014] The air outlet side of the adsorption pipeline and the air outlet side of the desorption pipeline converge into a drying pipeline, and the air outlet side of the drying pipeline is connected to the air inlet of the material bin.

[0015] Optionally, the drying pipeline is further provided with a return air heater and / or a return air cooler.

[0016] Optionally, the air supply pipeline is further provided with an air supply filter, and the air supply filter is located at the air inlet side of the front cooler.

[0017] Optionally, an induced draft fan is arranged between the air supply filter and the front cooler, and the induced draft fan supplies air in the direction from the air supply filter to the front cooler.

[0018] Optionally, a regenerative fan is arranged between the post-cooler and the air outlet side of the desorption regeneration zone, and the regenerative fan supplies air in the direction from the desorption regeneration zone to the post-cooler.

[0019] Optionally, the adsorption pipeline is provided with a treatment fan, and the treatment fan supplies air in the direction from the adsorption treatment zone to the material bin.

[0020] Optionally, the system further comprises a servo motor, and the servo motor is connected to the dehumidification runner through a belt drive.

[0021] Optionally, the flow rate of the first air outlet branch is greater than the flow rate of the second air outlet branch.

[0022] According to the technical content disclosed by the utility model, the following beneficial effects are achieved:

[0023] The hot and humid air in the environment to be treated firstly passes through the front surface cooler to be surface-cooled and dehumidified, and then enters the dehumidification runner to be deeply dehumidified. The air after passing through the front surface cooler is branched, most of the air flow directly enters the adsorption treatment area of the dehumidification runner, and a small part of the air flow enters the cooling area of the dehumidification runner, and the air flow after passing through the cooling area of the runner is directly used as the regeneration air of the desorption regeneration area. The regeneration air is heated to desorb and regenerate the runner. In this process, the temperature of the runner after passing through the desorption regeneration area is relatively high, if directly entering the adsorption treatment area, it will affect the dehumidification effect of the adsorption treatment area. Therefore, the cooling area is added to the runner, and the cooling air exchanges heat with the runner through the cooling area of the runner, so as to take away the heat of the runner, reduce the temperature of the runner, improve the dehumidification performance and efficiency of the runner in the adsorption treatment area, and ensure the stable operation of the dehumidification system.

[0024] Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0026] Figure 1 It is a structure diagram of the runner dehumidification drying system of the present application.

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application. DETAILED DESCRIPTION

[0028] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. Note that the relative arrangement, numerical expressions, and numerical values of components and steps set forth in these embodiments are not limiting to the scope of the present application unless otherwise specifically stated.

[0029] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting to the scope of the application or its applications or uses.

[0030] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and apparatus can be considered part of the present application.

[0031] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0032] It should be noted that like numerals and letters refer to like items throughout the several views, and once an item is defined in one view, it need not be discussed further in subsequent views.

[0033] The utility model discloses a kind of rotary dehumidification drying systems, the hot air in drum type bunker is first carried out surface cooling dehumidification by front surface cooler and then enters dehumidification runner to carry out depth dehumidification. Air after the front surface cooler is shunted, most air flow is directly into the adsorption processing area of dehumidification runner, a small part of air flow enters the cooling area of dehumidification runner, and the air flow after cooling area of dehumidification runner is directly used for the regeneration air of desorption regeneration area, regeneration air is heated to the desorption regeneration of dehumidification runner, and the high-temperature and high-humidity gas after desorption is carried out surface cooling dehumidification by rear surface cooler, dry gas after dehumidification mixes with dry gas after being adsorbed by the adsorption processing area of dehumidification runner, according to drying temperature requirement, dry gas after mixing is heated by return air heater or return air surface cooler, and finally enters drum type bunker to carry out drying treatment to material, and the whole process realizes the cycle dehumidification of material. In this process, since the temperature of dehumidification runner after desorption regeneration area is higher, if directly entering adsorption processing area, it can affect the dehumidification effect of adsorption processing area, so cooling area is increased on dehumidification runner, and cooling air is exchanged with dehumidification runner through cooling area of dehumidification runner, and the heat of dehumidification runner is taken away, the temperature of dehumidification runner is reduced, the dehumidification performance and efficiency of dehumidification runner in adsorption processing area are improved, and the stable operation of dehumidification system is ensured.

[0034] Referring to Figure 1 and Figure 2 The utility model discloses a kind of rotary dehumidification drying systems, comprising:

[0035] Dehumidification runner 1, air supply filter 2, air induction fan 3, front surface cooler 4, processing fan 5, regeneration heater 6, regeneration fan 7, rear surface cooler 8, return air heater 9, return air surface cooler 10, bunker 11 and servo motor 12. Among them, dehumidification runner 1 is divided into adsorption processing area 101, desorption regeneration area 102 and cooling area 103. Servo motor 12 is connected by belt drive between dehumidification runner 1, and servo motor 12 drives dehumidification runner 1 to rotate around its axis, so that the dehumidification and regeneration process of dehumidification runner is carried out week after week, to ensure that dehumidification runner module can continuously output dry air, realize the cycle dehumidification of material.

[0036] In the embodiment, the silo 11 is a drum silo, the air outlet of the silo 11 is connected to the air inlet side of the air supply pipeline, the air inlet side of the front surface cooler 4 is connected to the air outlet side of the air supply pipeline, and the air outlet side of the front surface cooler 4 is connected to the first air outlet branch and the second air outlet branch which are arranged in parallel, wherein the flow rate of the first air outlet branch is greater than that of the second air outlet branch.

[0037] The first air outlet branch is connected to the air inlet side of the adsorption treatment area 101, the air outlet side of the adsorption treatment area 101 is connected to the adsorption pipeline, the second air outlet branch is connected to the air inlet side of the cooling area 103, the air outlet side of the cooling area 103 is connected to the air inlet side of the regeneration pipeline, the regeneration heater 6 is arranged on the regeneration pipeline, and the air outlet side of the regeneration pipeline is connected to the air inlet side of the desorption regeneration area 102. The air supply filter 2 is further arranged on the air supply pipeline and located at the air inlet side of the front surface cooler 4, used to filter the dust and other impurities mixed in the air supplied from the drum silo 11, so as to avoid the impurities from entering the dehumidification wheel 1 and blocking the wheel. The induced draft fan 3 is arranged between the air supply filter 2 and the front surface cooler 4, used to supply air in the direction from the air supply filter 2 to the front surface cooler 4. The induced draft fan 3 sequentially passes the humid and hot air in the silo 11 through the air supply filter 2 and the front surface cooler 4, and the air flow is divided after passing through the front surface cooler 4. Most of the air flow enters the adsorption treatment area 101 of the dehumidification wheel 1 under the action of the treatment fan 5, and a small part of the air flow enters the cooling area 103 of the dehumidification wheel 1 under the action of the regeneration fan 7.

[0038] The air outlet side of the desorption regeneration area 102 is connected to the desorption pipeline, the rear surface cooler 8 is arranged on the desorption pipeline, the regeneration fan 7 is arranged between the rear surface cooler 8 and the air outlet side of the desorption regeneration area 102, the regeneration fan 7 supplies air in the direction from the desorption regeneration area 102 to the rear surface cooler 8, and the regeneration fan 7 sends the gas after passing through the cooling area 103 of the dehumidification wheel 1 to the desorption regeneration area 102 of the dehumidification wheel 1. The air outlet side of the adsorption pipeline and the air outlet side of the desorption pipeline converge to the drying pipeline, and the air outlet side of the drying pipeline is connected to the air inlet of the silo 11. The return air heater 9 and / or the return air surface cooler 10 are further arranged on the drying pipeline. The treatment fan 5 is arranged on the adsorption pipeline, and the treatment fan 5 supplies air in the direction from the adsorption treatment area 101 to the silo 11.

[0039] In operation, the induced draft fan 3 is used to make the humid and hot air in the silo 11 pass through the air supply pipeline and sequentially pass through the air supply filter 2 and the front surface cooler 4. After the air flow passes through the front surface cooler 4, the air flow is divided. Most of the air flow enters the adsorption treatment area 101 of the dehumidification wheel 1 to be dehumidified under the action of the treatment fan 5, and a small part of the air flow enters the cooling area 103 of the dehumidification wheel 1 to cool the dehumidification wheel 1 under the action of the regeneration fan 7, so as to better perform the next round of moisture absorption work.

[0040] The regenerative fan 7 sends the gas after the cooling area 103 of the dehumidification runner 1 to the dehumidification runner 1 desorption regeneration area 102, and the gas is heated by the regeneration heater 6, the heated gas desorbs and regenerates the dehumidification runner 1, and the cooling air exchanges heat with the dehumidification runner 1 when passing through the cooling area 103, and the heat of the dehumidification runner 1 is taken away, so that the gas after passing through the cooling area 103 still has a certain heat, so the gas after passing through the cooling area 103 is directly used as the regeneration air of the desorption regeneration area 102, which can reduce the energy consumption of the regeneration heater during the regeneration and desorption of the dehumidification runner 1, save energy and reduce operation cost. The high-temperature and high-humidity gas after desorption is surface-cooled and dehumidified by the rear surface cooler 8, and the dry gas after dehumidification is sent to the return air duct and mixed with the dry gas after being adsorbed by the dehumidification runner 1 to enter the silo 11.

[0041] Since the dry air obtained by passing through the dehumidification runner 1 and the rear surface cooler 8 does not necessarily meet the optimal drying temperature of the material, according to the requirement of the material to the high and low drying temperature, the dry gas can be heated or cooled by the return air heater 9 or the return air surface cooler 10 to achieve the optimal drying temperature, and finally the dry gas reaching the optimal drying temperature is sent to the silo 11 for drying treatment, which can improve the drying efficiency and ensure the quality of the dried material. Under the action of the induced draft fan 3, the hot and humid air carrying moisture after drying treatment is induced to the front surface cooler 4 and the dehumidification runner 1 for dehumidification, and the whole process realizes the cyclic dehumidification of the material.

[0042] In summary, the dehumidification and drying system of the runner provided by the utility model has the advantages that:

[0043] 1. Since the temperature of the runner after the desorption regeneration area is high, if it directly enters the adsorption treatment area, it will affect the dehumidification effect of the adsorption treatment area, so the dehumidification runner increases the cooling area, so that the runner enters the cooling area after the desorption regeneration area and then enters the adsorption treatment area, and the cooling air exchanges heat with the runner through the runner cooling area, taking away the heat of the runner, so that the temperature of the runner is reduced to a suitable range, so as to better perform the next round of moisture absorption work and improve the dehumidification performance and efficiency of the runner in the adsorption treatment area.

[0044] 2. The cooling air exchanges heat with the runner when passing through the cooling area, taking away the heat of the runner, so that the gas after passing through the cooling area still has a certain heat, and then the gas after passing through the cooling area is directly used as the regeneration air of the desorption regeneration area, which can reduce the energy consumption of the regeneration heater during the regeneration and desorption of the runner, save energy and reduce operation cost.

[0045] 3. Since the drying air temperature obtained after the dehumidification wheel and the after-surface cooler may not meet the optimal drying temperature of a certain material, the drying air can be heated or cooled by the return air heater or the return air surface cooler according to the material's requirements for drying temperature to achieve the optimal drying temperature. Finally, the drying air that has reached the optimal drying temperature is sent to the drum silo for drying the material, which can improve the drying efficiency and ensure the quality of the dried material.

[0046] Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art will appreciate that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A rotary dehumidifying drying system, characterized by, It comprises: A dehumidification runner (1) is divided into an adsorption treatment area (101), a desorption regeneration area (102) and a cooling area (103); The air inlet side of the front surface cooler (4) is connected to the air outlet side of the air supply pipeline, and the air outlet side of the front surface cooler (4) is connected to the parallelly arranged first air outlet branch and second air outlet branch, the first air outlet branch is communicated with the air inlet side of the adsorption treatment area (101), and the second air outlet branch is communicated with the air inlet side of the cooling area (103); The regeneration pipeline is communicated with the air outlet side of the cooling area (103), a regeneration heater (6) is arranged on the regeneration pipeline, and the air outlet side of the regeneration pipeline is communicated with the air inlet side of the desorption regeneration area (102).

2. The runner dehumidification drying system according to claim 1, wherein: The system further comprises a bin (11), and the air outlet of the bin (11) is connected to the air inlet side of the air supply pipeline; The air outlet side of the adsorption treatment area (101) is communicated with an adsorption pipeline; The air outlet side of the desorption regeneration area (102) is communicated with a desorption pipeline, and a rear surface cooler (8) is arranged on the desorption pipeline; The air outlet side of the adsorption pipeline and the air outlet side of the desorption pipeline converge into a drying pipeline, and the air outlet side of the drying pipeline is connected to the air inlet of the bin (11).

3. The runner dehumidification drying system according to claim 2, wherein: The drying pipeline is further provided with a return air heater (9) and / or a return air surface cooler (10).

4. The runner dehumidification drying system according to claim 1 or 2, wherein: The air supply pipeline is further provided with an air supply filter (2), and the air supply filter (2) is located on the air inlet side of the front surface cooler (4).

5. The runner dehumidification drying system according to claim 4, wherein: An air induction fan (3) is arranged between the air supply filter (2) and the front surface cooler (4), and the air induction fan (3) supplies air in the direction from the air supply filter (2) to the front surface cooler (4).

6. The runner dehumidification drying system according to claim 2, wherein: A regeneration fan (7) is arranged between the rear surface cooler (8) and the air outlet side of the desorption regeneration area (102), and the regeneration fan (7) supplies air in the direction from the desorption regeneration area (102) to the rear surface cooler (8).

7. The runner dehumidification drying system according to claim 2, wherein: A treatment fan (5) is arranged on the adsorption pipeline, and the treatment fan (5) supplies air in the direction from the adsorption treatment area (101) to the bin (11).

8. The runner dehumidification drying system according to claim 1 or 2, wherein: The system further comprises a servo motor (12), and the servo motor (12) is connected to the dehumidification runner (1) through a belt drive.

9. The runner dehumidification drying system according to claim 1 or 2, wherein: The flow rate of the first air outlet branch is greater than that of the second air outlet branch.

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