Dehumidifier and dehumidification system

Abstract

The utility model discloses a dehumidifier and a dehumidification system, and relates to the technical field of power batteries, the dehumidifier comprises a fresh air duct, a regeneration air duct, an air supplement duct and a rotating wheel dehumidification assembly, a first dehumidification wheel, a first surface air cooler, a second dehumidification wheel and a second surface air cooler are sequentially arranged on an air duct path of the fresh air duct, and an air inlet of the fresh air duct communicates with the outside; an air outlet of the fresh air duct is used for communicating with a clean workshop; the second regeneration heater, the second dehumidification wheel, the first regeneration heater, the first dehumidification wheel and the regeneration exhaust fan are sequentially arranged on the regeneration air duct, an air inlet of the regeneration air duct communicates with the fresh air duct, and an air outlet of the regeneration air duct communicates with the outside; an air inlet of the air supplement duct is communicated with the outside, and an air outlet of the air supplement duct is communicated with the regeneration duct. According to the dehumidifier, the consumption of fresh air can be reduced, and the energy consumption of the dehumidifier can be reduced.

Description

Technical Field

[0001] The present application relates to the field of power battery technology, and in particular to a dehumidifier and a dehumidification system. Background Art

[0002] Traditional dehumidifiers have technical problems such as large fresh air consumption and high energy consumption. Utility Model Content

[0003] The main purpose of this application is to propose a dehumidifier and a dehumidification system, aiming to at least improve the technical problems of large fresh air consumption and high energy consumption of the dehumidifier.

[0004] To achieve the above-mentioned objectives, according to some embodiments of the present application, the present application provides a dehumidifier, including a fresh air duct, a regeneration air duct, a make-up air duct and a rotary dehumidification assembly, the rotary dehumidification assembly including a first dehumidification wheel, a first surface cooler, a second dehumidification wheel, a second surface cooler, a first regeneration heater, a second regeneration heater and a regeneration exhaust fan; the first dehumidification wheel, the first surface cooler, the second dehumidification wheel and the second surface cooler are sequentially arranged on the duct path of the fresh air duct, the air inlet of the fresh air duct is connected to the outside world, and the air outlet of the fresh air duct is used to connect with a clean workshop; the second regeneration heater, the second dehumidification wheel, the first regeneration heater, the first dehumidification wheel and the regeneration exhaust fan are sequentially arranged on the duct path of the regeneration air duct, the air inlet of the regeneration air duct is connected to the fresh air duct, and the air outlet of the regeneration air duct is connected to the outside world; the air inlet of the make-up air duct is connected to the outside world, and the air outlet of the make-up air duct is connected to the regeneration air duct.

[0005] By setting up a make-up air duct, the air inlet of the make-up air duct is connected with the outside world, and the air outlet of the make-up air duct is connected with the regeneration air duct. The regeneration air duct is replenished with air by drawing air from the outside world, that is, the air of the regeneration air duct comes from both the fresh air duct and the make-up air duct. This can reduce the consumption of fresh air and the energy consumption of the dehumidifier.

[0006] In some embodiments, the dehumidifier also includes a coupled heat pump unit, which includes an evaporator, a condenser, a throttle valve and a compressor. The evaporator is arranged on the air duct path of the fresh air duct and is located between the air inlet of the fresh air duct and the first dehumidification wheel. The condenser is arranged on the air duct path of the regeneration air duct and is located between the second dehumidification wheel and the first regeneration heater. The compressor is respectively connected to the evaporator and the condenser, and the throttle valve is respectively connected to the evaporator and the condenser.

[0007] By setting up a heat pump coupling unit, the air in the fresh air duct can be deeply dehumidified through the evaporator, and more moisture can be removed before entering the first dehumidification wheel, reducing the proportion of the dehumidification capacity of the first dehumidification wheel, which can reduce the dehumidification energy consumption of the first dehumidification wheel. At the same time, the air in the regeneration duct can be preheated through the condenser, further reducing the dehumidification consumption of the first dehumidification wheel.

[0008] In some embodiments, the connection point between the regeneration air duct and the fresh air duct is located between the condenser and the first dehumidification wheel.

[0009] By arranging the inlet of the regeneration air duct before the first dehumidification wheel, the air is introduced into the regeneration air duct before being processed by the first dehumidification wheel, which can reduce the load of the first dehumidification wheel and further reduce energy consumption, thereby achieving energy saving.

[0010] In some embodiments, the connection point between the supply air duct and the regeneration air duct is located between the second dehumidification wheel and the condenser.

[0011] By setting the connecting point between the supply air duct and the regeneration air duct between the second dehumidification wheel and the condenser, it is possible to reduce the energy consumption of the second regeneration heater and improve the regeneration effect on the first dehumidification wheel; it is also possible to ensure the temperature of the air in the regeneration air duct passing through the second dehumidification wheel, thereby improving the regeneration effect on the second dehumidification wheel.

[0012] In some embodiments, the supply air duct is provided with a second regulating valve, and the second regulating valve is used to adjust the air volume entering the regeneration air duct from the supply air duct.

[0013] By setting the second regulating valve to adjust the air volume of the make-up air, it can be adjusted according to the outlet air humidity of the second dehumidification wheel to improve the desorption effect.

[0014] In some embodiments, the regeneration air duct includes a cooling sub-duct and a regeneration sub-duct that are interconnected, the air outlet of the cooling sub-duct is connected to the air inlet of the regeneration sub-duct, the connection between the air inlet of the cooling sub-duct and the fresh air duct is located between the condenser and the first dehumidification wheel, the first dehumidification wheel and the second dehumidification wheel are sequentially arranged on the cooling sub-duct, the second regeneration heater, the second dehumidification wheel, the condenser, the first regeneration heater, the first dehumidification wheel and the regeneration exhaust fan are sequentially arranged on the regeneration sub-duct, the air outlet of the make-up air duct is connected to the regeneration sub-duct, and the air outlet of the regeneration sub-duct is connected to the outside.

[0015] By setting the regeneration air duct to include a cooling sub-duct and a regeneration sub-duct, the air outlet of the cooling sub-duct is connected to the air inlet of the regeneration sub-duct, the cooling sub-duct passes through the cooling zone of the first dehumidification wheel and the second dehumidification wheel, and the regeneration sub-duct passes through the adsorption zone of the first dehumidification wheel and the second dehumidification wheel, so as to achieve cold and hot diversion, it is possible to save regeneration energy consumption, reduce adsorption heat, improve the adsorption effect of the first dehumidification wheel and the second dehumidification wheel, and improve the dehumidification efficiency.

[0016] In some embodiments, a first regulating valve is provided on the cooling sub-air duct, and the first regulating valve is used to adjust the air volume entering the cooling sub-air duct from the fresh air duct.

[0017] By setting the first regulating valve to adjust the air volume entering the cooling sub-air duct, the air outlet humidity of the first dehumidification wheel can be adjusted to improve the desorption effect.

[0018] In some embodiments, the rotary dehumidification assembly also includes a first enhanced fan and a second enhanced fan, and the evaporator, the first dehumidification wheel, the first enhanced fan, the first surface cooler, the second dehumidification wheel, the second surface cooler and the second enhanced fan are sequentially arranged on the air duct path of the fresh air duct.

[0019] By arranging the first enhanced fan and the second enhanced fan on the air duct path of the fresh air duct, the flow of air on the air duct path can be accelerated and the dehumidification efficiency can be improved.

[0020] In some embodiments, the rotary dehumidification assembly also includes a third surface cooler, which is connected to the air inlet of the fresh air duct, and the third surface cooler, the evaporator, the first dehumidification wheel, the first enhanced fan, the first surface cooler, the second dehumidification wheel, the second surface cooler and the second enhanced fan are sequentially arranged on the air duct path of the fresh air duct.

[0021] By setting up the third surface cooler, the air in the fresh air duct can be cooled and dehumidified, further reducing the load of the first dehumidification wheel and improving the adsorption effect.

[0022] In some embodiments, the dehumidifier also includes a return air duct, the air outlet of the return air duct is connected to the fresh air duct, and the connection point between the return air duct and the fresh air duct is located between the first dehumidification wheel and the first enhanced fan, and the air inlet of the return air duct is used to connect to the clean workshop.

[0023] By setting up a return air duct, the air exhausted from the clean workshop can be recycled to reduce energy loss.

[0024] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the structure of a vehicle according to some embodiments of the present application;

[0027] Figure 2 A schematic diagram of the exploded structure of a battery according to some embodiments of the present application;

[0028] Figure 3 This is a schematic diagram of the structure of a dehumidifier in some embodiments of the present application;

[0029] Figure 4 This is a schematic structural diagram of a first dehumidification wheel or a second dehumidification wheel of a dehumidifier in some embodiments of the present application;

[0030] Figure 5 A schematic diagram of a dehumidification system according to some embodiments of the present application;

[0031] Figure 6 Another structural schematic diagram of the dehumidification system of some embodiments of the present application.

[0032] Description of Figure Numbers:

[0033] 1000. Vehicles;

[0034] 100, battery; 200, controller; 300, motor;

[0035] 10. Box body; 11. First part; 12. Second part;

[0036] 20. Battery cells;

[0037] 1. Fresh air duct; 2. Regeneration air duct; 21. Cooling sub-duct; 22. Regeneration sub-duct; 3. Make-up air duct; 41. First dehumidification wheel; 411. Adsorption zone; 412. Cooling zone; 413. Desorption zone; 414. Baffle; 42. First surface cooler; 43. Second dehumidification wheel; 44. Second surface cooler; 45. Second regeneration heater; 46. First regeneration heater; 47. First enhanced fan; 48. Second enhanced fan; 49. Third surface cooler; 401. Regeneration exhaust fan; 51. Evaporator; 52. Condenser; 53. Throttle valve; 54. Compressor; 6. First regulating valve; 7. Second regulating valve; 9. Clean room; 101. Inlet duct; 102. Return duct.

[0038] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in this embodiment to clearly and completely describe the technical solution in this embodiment. Obviously, the described embodiment is only a part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] It should be noted that all directional indications in this embodiment (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise clearly specified and limited, the terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In addition, the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application. It should be understood that the specific embodiments described here are only used to explain this application and are not used to limit this application.

[0044] The descriptions of directions such as "up", "down", "front", "back", "left" and "right" in this application are based on the directions shown in the drawings and are only used to explain the relative positional relationship between the components in the postures shown in the drawings. If the specific posture changes, the directional indication will also change accordingly.

[0045] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0046] During the battery production process, each process needs to be precisely controlled, which has very high requirements for humidity. Dehumidifiers are usually used to control humidity in the lithium battery production environment. The energy consumption cost of dehumidifier operation is huge. Energy saving and consumption reduction for production equipment is one of the important measures for enterprises to reduce costs and improve competitiveness.

[0047] The dehumidifiers currently used are generally double-rotor dehumidifiers, which have technical problems of large fresh air consumption and high energy consumption. After careful research, the applicant found that the wind in the current regeneration air duct is taken from the fresh air processed by the dehumidification wheel, resulting in a large consumption of the fresh air volume of the dehumidifier and a large energy consumption.

[0048] In the technical solution of the present application, by adding a supplementary air duct, the supplementary air duct is connected with the regeneration air duct, and the supplementary air duct directly introduces air intake from the external environment and heats it through the first regeneration heater to regenerate the first dehumidification wheel. At the same time, the air inlet of the regeneration air duct is located before the first dehumidification wheel, that is, when the external air enters the fresh air duct, part of it enters the regeneration air duct before being processed by the first dehumidification wheel. Compared with introducing the air into the regeneration air duct after being processed by the first dehumidification wheel, the amount of fresh air processed by the first dehumidification wheel is reduced, and the energy consumption is also reduced.

[0049] Please refer to Figure 1 , Figure 1A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The electrical device may be a vehicle 1000, and the vehicle 1000 may be a fuel vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head, or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating, and operating power requirements of the vehicle 1000 during driving.

[0050] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0051] Please refer to Figure 2 , Figure 2 Schematic diagram of the exploded structure of a battery 100 provided in some embodiments of the present application. The battery 100 includes a box 10 and a battery cell 20, and the battery cell 20 is accommodated in the box 10. Among them, the box 10 is used to provide a storage space for the battery cell 20, and the box 10 can adopt a variety of structures. In some embodiments, the box 10 may include a first part 11 and a second part 12, the first part 11 and the second part 12 cover each other, and the first part 11 and the second part 12 jointly define a storage space for accommodating the battery cell 20. The second part 12 may be a hollow structure with one end open, the first part 11 may be a plate-like structure, and the first part 11 covers the open side of the second part 12, so that the first part 11 and the second part 12 jointly define a storage space; the first part 11 and the second part 12 may also be hollow structures with one side open, and the open side of the first part 11 covers the open side of the second part 12. Of course, the box 10 formed by the first part 11 and the second part 12 may be in a variety of shapes, such as a cylinder, a cuboid, etc.

[0052] In the battery 100, there may be multiple cells 20, and the multiple cells 20 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple cells 20 are both connected in series and in parallel. The multiple cells 20 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple cells 20 may be accommodated in the box 10; of course, the battery 100 may also be a battery module formed by connecting multiple cells 20 in series, in parallel, or in a mixed connection, and then the multiple battery modules may be connected in series, in parallel, or in a mixed connection to form a whole, and then accommodated in the box 10. The battery 100 may also include other structures, for example, the battery 100 may also include a busbar component for achieving electrical connectivity between the multiple cells 20.

[0053] Each battery cell 20 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0054] The battery 100 needs to be manufactured in a clean and dry environment, and a dehumidifier is needed to control the humidity of the air. To this end, the present application provides a dehumidifier.

[0055] Reference Figure 3 and Figure 5 According to some embodiments of the present application, the dehumidifier includes a fresh air duct 1, a regeneration air duct 2, a supplementary air duct 3 and a rotary dehumidification component, and the rotary dehumidification component includes a first dehumidification wheel 41, a first surface cooler 42, a second dehumidification wheel 43, a second surface cooler 44, a first regeneration heater 46, a second regeneration heater 45 and a regeneration exhaust fan 401;

[0056] The first dehumidifier wheel 41, the first surface cooler 42, the second dehumidifier wheel 43 and the second surface cooler 44 are sequentially arranged on the air duct path of the fresh air duct 1, the air inlet of the fresh air duct 1 is connected to the outside, and the air outlet of the fresh air duct 1 is used to be connected to the clean room 9; the second regeneration heater 45, the second dehumidifier wheel 43, the first regeneration heater 46, the first dehumidifier wheel 41 and the regeneration exhaust fan 401 are sequentially arranged on the regeneration air duct 2, the air inlet of the regeneration air duct 2 is connected to the fresh air duct 1, and the air outlet of the regeneration air duct 2 is connected to the outside;

[0057] The air inlet of the air supply duct 3 is connected to the outside, and the air outlet of the air supply duct 3 is connected to the regeneration air duct 2.

[0058] In this embodiment, the dehumidifier includes three air ducts, namely, the fresh air duct 1, the regeneration air duct 2 and the supplementary air duct 3. The first dehumidification wheel 41 and the second dehumidification wheel 43 are located on the air duct path of the fresh air duct 1 and the air duct path of the regeneration air duct 2. Specifically, different areas of the first dehumidification wheel 41 and the second dehumidification wheel 43 are located on the air duct path of the fresh air duct 1 and the air duct path of the regeneration air duct 2, respectively. The air flows in each air duct as shown in FIG. Figure 3In the direction indicated by the middle arrow, the air inlet of the fresh air duct 1 is shown as A in the figure, and the air outlet of the fresh air duct 1 is shown as B in the figure. The air inlet of the fresh air duct 1 is connected to the outside world for drawing air from the outside world. The air duct path of the fresh air duct 1 is sequentially connected with the first dehumidification wheel 41, the first surface cooler 42, the second dehumidification wheel 43 and the second surface cooler 44. The first surface cooler 42 and the second surface cooler 44 can be fed with chilled water, such as 7°C chilled water, to cool and dehumidify the passing air. The first dehumidification wheel 41 and the second dehumidification wheel 43 can absorb moisture in the air through adsorption, thereby playing the role of dehumidification and drying. The air duct path of the regeneration air duct 2 is sequentially provided with a second regeneration heater 45, a second dehumidification wheel 43, a first regeneration heater 46, a first dehumidification wheel 41 and a regeneration exhaust fan 401. The air in the regeneration air duct 2 is heated by the second regeneration heater 45, and the temperature is increased. When passing through the second dehumidification wheel 43, the water adsorbed by the second dehumidification wheel 43 can be evaporated. The second dehumidification wheel 43 that has evaporated the water can adsorb water on the fresh air duct 1, which plays a role of regeneration. The temperature of the air passing through the second dehumidification wheel 43 will decrease, so it will be heated again by the first regeneration heater 46 to increase the temperature. When passing through the first dehumidification wheel 41 again, the water in the first dehumidification wheel 41 will evaporate, which plays a role of regeneration. The regeneration exhaust fan 401 is located at the outlet of the regeneration air duct 2, and discharges the air passing through the first dehumidification wheel 41 into the outside atmosphere, while providing power for the flow of air in the regeneration air duct 2.

[0059] The air inlet of the air supply duct 3 is connected to the outside, and the air outlet of the air supply duct 3 is connected to the regeneration duct 2. The air supply duct 3 directly draws air from the workshop environment, and the air enters the regeneration duct 2, and after being heated, it can regenerate the first dehumidification wheel 41. Directly obtaining air supply from the outside workshop environment to enter the regeneration duct 2, rather than obtaining all the air dehumidified by the first dehumidification wheel 41 from the fresh air duct 1, can not only reduce the energy consumption of the first dehumidification wheel 41, but also, if the air dehumidified by the first dehumidification wheel 41 is used, it will also need to be heated in the regeneration duct 2, so the process of cooling first and then heating increases the energy consumption of the entire dehumidifier.

[0060] It should also be noted that the first dehumidification wheel 41 and the second dehumidification wheel 43 generally use a wheel core made of solid silica gel or molecular sieve adsorption material, which can adsorb moisture in the air, especially at low temperatures. Therefore, the first surface cooler 42 and the second surface cooler 44 are set on the fresh air duct 1. The surface cooler can not only dehumidify but also cool the air, thereby improving the adsorption effect of the first dehumidification wheel 41 and the second dehumidification wheel 43, that is, enhancing the dehumidification effect. At the same time, at high temperatures, the moisture on the first dehumidification wheel 41 and the second dehumidification wheel 43 will desorb, that is, evaporate from the first dehumidification wheel 41 and the second dehumidification wheel 43. The first dehumidification wheel 41 and the second dehumidification wheel 43 with the moisture removed can adsorb on the fresh air duct 1 again, so it is called regeneration of the dehumidification wheel. This embodiment heats the air through a regeneration heater. When the heated air with a higher temperature passes through the dehumidification wheel, the moisture on the dehumidification wheel can be evaporated, which plays a regeneration role. In this way, the dehumidification wheel performs an adsorption and desorption process in the dehumidifier, realizing a cycle.

[0061] By setting up a make-up air duct 3, the air inlet of the make-up air duct 3 is connected to the outside, and the air outlet of the make-up air duct 3 is connected to the regeneration air duct 2. The regeneration air duct 2 is replenished with air by sucking air from the outside, that is, the air of the regeneration air duct 2 comes from the fresh air duct 1 and the make-up air duct 3. The consumption of fresh air can be reduced, and the energy consumption of the dehumidifier can be reduced.

[0062] Reference Figure 3 In some embodiments, the dehumidifier also includes a coupled heat pump unit, which includes an evaporator 51, a condenser 52, a throttle valve 53 and a compressor 54. The evaporator 51 is arranged on the air duct path of the fresh air duct 1 and is located between the air inlet of the fresh air duct 1 and the first dehumidification wheel 41. The condenser 52 is arranged on the air duct path of the regeneration air duct 2 and is located between the second dehumidification wheel 43 and the first regeneration heater 46. The compressor 54 is respectively connected to the evaporator 51 and the condenser 52, and the throttle valve 53 is respectively connected to the evaporator 51 and the condenser 52.

[0063] The evaporator 51 can be used to absorb heat from the air and cool and dehumidify the air. The air entering the fresh air duct 1 will be processed by the evaporator 51 before passing through the first dehumidification wheel 41 and the second dehumidification wheel 43. The evaporator 51 can remove more moisture before entering the first dehumidification wheel 41, thereby reducing the dehumidification energy consumption of the first dehumidification wheel 41. At the same time, the condenser 52 can preheat the air in the regeneration duct 2 before the air enters the first regeneration heater 46, generally preheating it to about 80°C, which can further reduce the dehumidification consumption of the first dehumidification wheel 41. The compressor 54 is used to provide power for the flow of air between the evaporator 51 and the condenser 52 to achieve a cycle of cooling and heating. The throttle valve 53 is used to adjust the flow rate of the fluid between the evaporator 51 and the condenser 52.

[0064] By providing a heat pump coupling unit, the air in the fresh air duct 1 can be deeply dehumidified through the evaporator 51, and more moisture can be removed before entering the first dehumidification wheel 41, thereby reducing the proportion of the dehumidification capacity of the first dehumidification wheel 41 and reducing the dehumidification energy consumption of the first dehumidification wheel 41. At the same time, the air in the regeneration air duct 2 can be preheated through the condenser 52, further reducing the dehumidification consumption of the first dehumidification wheel 41.

[0065] Reference Figure 3 In some embodiments, the connection point between the regeneration air duct 2 and the fresh air duct 1 is located between the condenser 52 and the first dehumidification wheel 41 .

[0066] The air inlet of the regeneration air duct 2 is connected with the fresh air duct 1, and the wind flowing into the regeneration air duct 2 includes two parts: one part is the wind entering from the fresh air duct 1, and the other part is the wind entering from the supplementary air duct 3. The wind in the fresh air duct 1 is also divided into two flow paths, one part enters the regeneration air duct 2, and the other part continues to flow in the fresh air duct 1 and enters the clean workshop 9 after being processed. The interface between the fresh air duct 1 and the regeneration air duct 2 is set between the condenser 52 and the first dehumidification wheel 41, that is, part of the air is introduced into the regeneration air duct 2 before the air enters the first dehumidification wheel 41. If the regeneration air duct 2 is connected after the first dehumidification wheel 41, then the air is dehumidified by the first dehumidification wheel 41, and then the dehumidified air is taken into the regeneration air duct 2, which undoubtedly increases the load of the first dehumidification wheel 41. In addition, in the subsequent desorption process, the adsorbed moisture must be evaporated and desorbed, which undoubtedly consumes a lot of energy.

[0067] By arranging the inlet of the regeneration air duct 2 before the first dehumidification wheel 41, the air is introduced into the regeneration air duct 2 before being processed by the first dehumidification wheel 41, which can reduce the load of the first dehumidification wheel 41 and further reduce energy consumption, thereby achieving energy saving effect.

[0068] Reference Figure 3 In some embodiments, the connection point between the supply air duct 3 and the regeneration air duct 2 is located between the second dehumidification wheel 43 and the condenser 52 .

[0069] The air inlet of the supplementary air duct 3 is connected to the outside world, and is used to draw air from the clean room 9 or the external environment into the regeneration air duct 2. The connection point between the supplementary air duct 3 and the regeneration air duct 2 is located between the second dehumidification wheel 43 and the condenser 52, which means that the air outlet of the supplementary air duct 3 is between the second dehumidification wheel 43 and the condenser 52. In this way, after the wind in the regeneration air duct 2 is regenerated by the second dehumidification wheel 43, it merges with the wind in the supplementary air duct 3 and enters the condenser 52 for heating. The heated wind is heated again by the first regeneration heater 46 and enters the first dehumidification wheel 41 to desorb the moisture adsorbed by the first dehumidification wheel 41, thereby regenerating the first dehumidification wheel 41. The air outlet of the supplementary air duct 3 is arranged before the condenser 52, so that the air entering the supplementary air duct 3 and the air passing through the second dehumidification wheel 43 can be merged and preheated, which can reduce the energy consumption of the second regeneration heater 45. By disposing the air outlet of the supplementary air duct 3 behind the second dehumidification wheel 43 , the temperature of the air in the regeneration air duct 2 passing through the second dehumidification wheel 43 can be ensured, thereby improving the regeneration adsorption effect on the second dehumidification wheel 43 .

[0070] By setting the connecting point between the supply air duct 3 and the regeneration air duct 2 between the second dehumidification wheel 43 and the condenser 52, it is possible to reduce the energy consumption of the second regeneration heater 45 and improve the regeneration effect of the first dehumidification wheel 41; it is also possible to ensure the temperature of the air in the regeneration air duct 2 passing through the second dehumidification wheel 43, thereby improving the regeneration adsorption effect of the second dehumidification wheel 43.

[0071] Reference Figure 3 In some embodiments, the supply air duct 3 is provided with a second regulating valve 7 , and the second regulating valve 7 is used to adjust the air volume entering the regeneration air duct 2 from the supply air duct 3 .

[0072] The second regulating valve 7 is used to adjust the air volume entering the regeneration air duct 2 from the supplementary air duct 3. Specifically, the second regulating valve 7 can perform PID adjustment according to the outlet humidity of the second dehumidification wheel 43. The PID adjustment consists of three parts: proportion, integration and differentiation. The output signal is adjusted according to the difference between the current state of the controlled object and the set value, so that the difference approaches zero. In this embodiment, the second regulating valve 7 is adjusted according to the difference between the current humidity and the preset humidity to improve the desorption effect.

[0073] By setting the second regulating valve 7 to adjust the air volume of the supplementary air duct 3 entering the regeneration air duct 2, it can be adjusted according to the outlet air humidity of the second dehumidification wheel 43 to improve the desorption effect.

[0074] Reference Figure 3In some embodiments, the regeneration air duct 2 includes a cooling sub-duct 21 and a regeneration sub-duct 22 that are interconnected, the air outlet of the cooling sub-duct 21 is connected to the air inlet of the regeneration sub-duct 22, the connection point between the air inlet of the cooling sub-duct 21 and the fresh air duct 1 is located between the condenser 52 and the first dehumidification wheel 41, the first dehumidification wheel 41 and the second dehumidification wheel 43 are sequentially arranged on the cooling sub-duct 21, the second regeneration heater 45, the second dehumidification wheel 43, the condenser 52, the first regeneration heater 46, the first dehumidification wheel 41 and the regeneration exhaust fan 401 are sequentially arranged on the regeneration sub-duct 22, the air outlet of the make-up air duct 3 is connected to the regeneration sub-duct 22, and the air outlet of the regeneration sub-duct 22 is connected to the outside.

[0075] Reference Figure 4 The first dehumidification wheel 41 includes three zones, namely, an adsorption zone 411, a cooling zone 412 and a desorption zone 413, and the three zones can be separated by a baffle 414. The second dehumidification wheel 43 also includes three zones, which are also referred to as an adsorption zone 411, a cooling zone 412 and a desorption zone 413 for the convenience of description. The air in the fresh air duct 1 passes through the adsorption zone 411 of the first dehumidification wheel 41 and the adsorption zone 411 of the second dehumidification wheel 43 in turn. The adsorption zone 411 of the first dehumidification wheel 41 and the second dehumidification wheel 43 can absorb moisture in the air and play a dehumidifying role. The air in the cooling sub-duct 21 passes through the cooling zone 412 of the first dehumidification wheel 41 and the cooling zone 412 of the second dehumidification wheel 43 in turn. The air in the cooling sub-duct 21 can absorb the waste heat of the desorption zone 413 of the dehumidification wheel. The air temperature of the cooling sub-duct 21 increases, which can reduce the heating energy consumption of the second regeneration heater 45. At the same time, the temperature reduction of the dehumidification wheel can improve the adsorption effect. The air of the regeneration sub-duct 22 passes through the desorption zone 413 of the first dehumidification wheel 41 and the second dehumidification wheel 43. The high-temperature gas in the regeneration sub-duct 22 after heating can evaporate the moisture on the first dehumidification wheel 41 and the second dehumidification wheel 43 in the desorption zone 413, and can re-absorb the moisture for dehumidification, that is, to achieve the regeneration of the first dehumidification wheel 41 and the second dehumidification wheel 43.

[0076] By setting the regeneration air duct 2 to include a cooling sub-duct 21 and a regeneration sub-duct 22, the air outlet of the cooling sub-duct 21 is connected to the air inlet of the regeneration sub-duct 22, the cooling sub-duct 21 passes through the cooling zone 412 of the first dehumidification wheel 41 and the second dehumidification wheel 43, and the regeneration sub-duct 22 passes through the adsorption zone 411 of the first dehumidification wheel 41 and the second dehumidification wheel 43, which can save energy consumption while improving the adsorption effect of the first dehumidification wheel 41 and the second dehumidification wheel 43 and improving the dehumidification efficiency.

[0077] Reference Figure 3 In some embodiments, a first regulating valve 6 is provided on the cooling sub-air duct 21 , and the first regulating valve 6 is used to adjust the air volume entering the cooling sub-air duct 21 from the fresh air duct 1 .

[0078] The first regulating valve 6 can be opened, closed, or adjusted down or up, and can control the air volume entering the cooling sub-air duct 21 from the fresh air duct 1 as needed. Specifically, the first regulating valve 6 can perform PID adjustment according to the outlet humidity of the first dehumidification wheel 41. The PID adjustment adjusts the output signal according to the difference between the current state of the controlled object and the set value, so that the difference approaches zero. In this embodiment, the first regulating valve 6 is adjusted according to the difference between the current humidity and the preset humidity to achieve the desorption effect.

[0079] By setting the first regulating valve 6 to adjust the air volume entering the cooling sub-air duct 21, the air volume can be adjusted according to the outlet humidity of the first dehumidification wheel 41 to improve the desorption effect.

[0080] Reference Figure 3 In some embodiments, the rotary dehumidification assembly also includes a first enhanced fan 47 and a second enhanced fan 48, and the evaporator 51, the first dehumidification wheel 41, the first enhanced fan 47, the first surface cooler 42, the second dehumidification wheel 43, the second surface cooler 44 and the second enhanced fan 48 are sequentially arranged on the air duct path of the fresh air duct 1.

[0081] The first enhanced fan 47 and the second enhanced fan 48 have similar functions, and are mainly used to accelerate and guide the air to flow along the air duct path of the fresh air duct 1, that is, to drive the air to flow from the air inlet of the fresh air duct 1 to the air outlet of the fresh air duct 1. The power of the first enhanced fan 47 and the second enhanced fan 48 can be selected according to actual needs.

[0082] By arranging the first enhanced fan 47 and the second enhanced fan 48 on the air duct path of the fresh air duct 1, the flow of air on the air duct path can be accelerated and the dehumidification efficiency can be improved.

[0083] Reference Figure 3 In some embodiments, the rotary dehumidification assembly also includes a third cooler 49, which is connected to the air inlet of the fresh air duct 1. The third cooler 49, the evaporator 51, the first dehumidification wheel 41, the first enhanced fan 47, the first cooler 42, the second dehumidification wheel 43, the second cooler 44 and the second enhanced fan 48 are arranged in sequence on the air duct path of the fresh air duct 1.

[0084] The third cooler 49 is arranged at a position closest to the air inlet of the fresh air duct 1. In a specific embodiment, the first cooler 42, the second cooler 44 and the third cooler 49 use conventional 7°C chilled water. The air entering from the air inlet of the fresh air duct 1 is first cooled and dehumidified on the third cooler 49, and is controlled with a target of 10°C / 100%. The evaporator 51 performs deep cooling and dehumidification, and is controlled with an outlet air temperature of 4°C / 100%. The throttle valve 53 is opened, and the compressor 54 transfers the heat absorbed by the evaporator 51 to the condenser 52 and releases it to the regeneration duct 2 for regeneration heating, and is controlled with an outlet air temperature of 80°C. After preheating, it is compensated and heated to the desorption temperature by the first regeneration heater 46 for regeneration of the first dehumidification wheel 41. The evaporator 51 performs deep refrigeration and dehumidification with the air outlet of 4°C / 100% as the target, which can significantly improve the processing ratio of refrigeration dehumidification and adsorption dehumidification, remove more moisture before entering the first dehumidification wheel 41, and reduce the dehumidification energy consumption of the first dehumidification wheel 41.

[0085] By providing the third surface cooler 49, the air in the fresh air duct 1 can be cooled and dehumidified, thereby further reducing the load of the first dehumidification wheel 41 and improving the adsorption effect.

[0086] Reference Figure 3 In some embodiments, the dehumidifier also includes a return air duct, the air outlet of the return air duct is connected to the fresh air duct 1, and the connection point between the return air duct and the fresh air duct 1 is located between the first dehumidification wheel 41 and the first enhanced fan 47, and the air inlet of the return air duct is used to connect with the clean workshop 9.

[0087] Reference Figure 5 The return air duct is mainly used to communicate with the return air duct 102 of the clean room 9, and is used to reuse the air exhausted from the clean room 9, thereby reducing energy consumption. Specifically, since the humidity of the air exhausted from the clean room 9 is relatively low, the return air duct can be arranged after the first dehumidification wheel 41. After the air in the return air duct enters the fresh air duct 1, it passes through the first enhanced fan 47, the first surface cooler 42, the second dehumidification wheel 43, the second surface cooler 44 and the second enhanced fan 48 in sequence and enters the clean room 9 again, thereby realizing the recycling of air.

[0088] By providing a return air duct, the air exhausted from the clean room 9 can be recycled to reduce energy loss.

[0089] According to some embodiments of the present application, the present application provides a dehumidifier, a fresh air duct 1, a regeneration air duct 2, a make-up air duct 3, a coupled heat pump unit and a rotary dehumidification component, the rotary dehumidification component includes a first dehumidification wheel 41, a first surface cooler 42, a second dehumidification wheel 43, a second surface cooler 44, a third surface cooler 49, a first regeneration heater 46, a second regeneration heater 45, a first enhanced fan 47, a second enhanced fan 48 and a regeneration exhaust fan 401, the coupled heat pump unit includes an evaporator 51, a condenser 52, a throttle valve 53 and a compressor 54, the third surface cooler 49, the evaporator 51, the first dehumidification wheel 41, the first enhanced fan 47, the first surface cooler 42, the second dehumidification wheel 43, the second surface cooler 44 and the second enhanced fan 48 are sequentially arranged on the air duct path of the fresh air duct 1, with reference to Figure 5, the fresh air duct 1 and the components on the air duct path of the fresh air duct 1 are selected by the dotted frame I, the air inlet of the fresh air duct 1 is connected with the outside world, and the air outlet of the fresh air duct 1 is used to connect with the clean workshop 9; the second regeneration heater 45, the second dehumidification wheel 43, the condenser 52, the first regeneration heater 46, the first dehumidification wheel 41 and the regeneration exhaust fan 401 are sequentially arranged on the regeneration air duct 2, the regeneration air duct 2 and the components on the air duct path of the regeneration air duct 2 are selected by the dotted frame II, the air inlet of the regeneration air duct 2 is connected with the fresh air duct 1, the connecting point between the regeneration air duct 2 and the fresh air duct 1 is located between the condenser 52 and the first dehumidification wheel 41, and the air outlet of the regeneration air duct 2 is connected with the outside world; the air inlet of the make-up air duct 3 is connected with the outside world, the connecting point between the make-up air duct 3 and the regeneration air duct 2 is located between the second dehumidification wheel 43 and the condenser 52, and the air outlet of the make-up air duct 3 is connected with the regeneration air duct 2. The cooling sub-air duct 21 is provided with a first regulating valve 6, which is used to regulate the air volume entering the cooling sub-air duct 21 from the fresh air duct 1, and the supplementary air duct 3 is provided with a second regulating valve 7, which is used to regulate the air volume entering the regeneration air duct 2 from the supplementary air duct 3. In the embodiment of the present application, by adding the supplementary air duct 3, the air inlet of the regeneration air duct 2 is arranged before the first dehumidification wheel 41, thereby reducing the load of the first dehumidification wheel 41, playing a role in reducing the fresh air consumption and saving energy consumption. In addition, by setting a heat pump coupling unit, the air in the fresh air duct 1 can be deeply dehumidified by the evaporator 51, and more moisture can be removed before entering the first dehumidification wheel 41, thereby reducing the proportion of the dehumidification amount of the first dehumidification wheel 41, and reducing the dehumidification energy consumption of the first dehumidification wheel 41. At the same time, the air in the regeneration air duct 2 can be preheated by the condenser 52, further reducing the dehumidification consumption of the first dehumidification wheel 41. Furthermore, by setting a cooling zone 412 on the first dehumidification wheel 41 and the second dehumidification wheel 43, the cooling sub-air duct 21 passes through the cooling zone 412 of the first dehumidification wheel 41 and the second dehumidification wheel 43, and the regeneration sub-air duct 22 passes through the adsorption zone 411 of the first dehumidification wheel 41 and the second dehumidification wheel 43, which can save energy consumption while improving the adsorption effect of the first dehumidification wheel 41 and the second dehumidification wheel 43 and improving the dehumidification efficiency.

[0090] Reference Figure 6According to some embodiments of the present application, the present application provides a dehumidification system, including a clean room 9 and a dehumidifier as described above, and the air outlet of the fresh air duct 1 is connected to the clean room 9. Specifically, the dehumidification system also includes an air inlet duct 101 and a return air duct 102, the air inlet of the air inlet duct 101 is connected to the air outlet of the fresh air duct 1, the air outlet of the air inlet duct 101 is connected to the clean room 9, and the dehumidified clean air is input to the clean room 9 through the air inlet duct 101. The air inlet of the return air duct 102 is connected to the clean room 9, the air outlet of the return air duct 102 is connected to the air inlet of the return air duct, and the air in the return air duct 102 enters the fresh air duct 1 through the return air duct. Since the dehumidification system includes any technical solution of all the embodiments of the above-mentioned dehumidifier, it has at least all the beneficial effects brought by any of the above-mentioned technical solutions, which will not be repeated here one by one.

[0091] The above description is only an optional embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the application concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A dehumidifier, characterized in that: It includes fresh air duct, regeneration air duct and make-up air duct, and also includes: A rotary dehumidification assembly, comprising a first dehumidification wheel, a first surface cooler, a second dehumidification wheel, a second surface cooler, a first regeneration heater, a second regeneration heater and a regeneration exhaust fan; The first dehumidification wheel, the first surface cooler, the second dehumidification wheel and the second surface cooler are sequentially arranged on the air duct path of the fresh air duct, the air inlet of the fresh air duct is connected to the outside, and the air outlet of the fresh air duct is used to connect to the clean room; the second regeneration heater, the second dehumidification wheel, the first regeneration heater, the first dehumidification wheel and the regeneration exhaust fan are sequentially arranged on the air duct path of the regeneration air duct, the air inlet of the regeneration air duct is connected to the fresh air duct, and the air outlet of the regeneration air duct is connected to the outside; The air inlet of the air supply duct is connected to the outside, and the air outlet of the air supply duct is connected to the regeneration duct; The dehumidifier also includes a coupled heat pump unit, which includes an evaporator, a condenser, a throttle valve and a compressor. The evaporator is arranged on the air duct path of the fresh air duct and is located between the air inlet of the fresh air duct and the first dehumidification wheel. The condenser is arranged on the air duct path of the regeneration air duct and is located between the second dehumidification wheel and the first regeneration heater. The compressor is respectively connected to the evaporator and the condenser, and the throttle valve is respectively connected to the evaporator and the condenser.

2. The dehumidifier according to claim 1, characterized in that The connection point between the regeneration air duct and the fresh air duct is located between the condenser and the first dehumidification wheel.

3. The dehumidifier according to claim 1, characterized in that: The connecting point between the supplementary air duct and the regeneration air duct is located between the second dehumidification wheel and the condenser.

4. The dehumidifier according to any one of claims 1 to 3, characterized in that: The regeneration air duct includes a cooling sub-duct and a regeneration sub-duct which are interconnected, the air outlet of the cooling sub-duct is connected to the air inlet of the regeneration sub-duct, the connection point between the air inlet of the cooling sub-duct and the fresh air duct is located between the condenser and the first dehumidification wheel, the first dehumidification wheel and the second dehumidification wheel are sequentially arranged on the cooling sub-duct, the second regeneration heater, the second dehumidification wheel, the condenser, the first regeneration heater, the first dehumidification wheel and the regeneration exhaust fan are sequentially arranged on the regeneration sub-duct, the air outlet of the make-up air duct is connected to the regeneration sub-duct, and the air outlet of the regeneration sub-duct is connected to the outside.

5. The dehumidifier according to claim 4, characterized in that: The cooling sub-air duct is provided with a first regulating valve, and the first regulating valve is used to regulate the air volume entering the cooling sub-air duct from the fresh air duct.

6. The dehumidifier according to claim 1, characterized in that The rotary dehumidification assembly also includes a first enhanced fan and a second enhanced fan, and the evaporator, the first dehumidification wheel, the first enhanced fan, the first surface cooler, the second dehumidification wheel, the second surface cooler and the second enhanced fan are sequentially arranged on the air duct path of the fresh air duct.

7. The dehumidifier according to claim 6, characterized in that The rotary dehumidification assembly also includes a third surface cooler, which is connected to the air inlet of the fresh air duct. The third surface cooler, the evaporator, the first dehumidification wheel, the first enhanced fan, the first surface cooler, the second dehumidification wheel, the second surface cooler and the second enhanced fan are sequentially arranged on the air duct path of the fresh air duct.

8. The dehumidifier according to claim 6, characterized in that The dehumidifier also includes a return air duct, an air outlet of the return air duct is connected to the fresh air duct, and the connection point between the return air duct and the fresh air duct is located between the first dehumidification wheel and the first enhanced fan, and the air inlet of the return air duct is used to communicate with the clean workshop.

9. The dehumidifier according to any one of claims 1 to 3, characterized in that: The air supply duct is provided with a second regulating valve, and the second regulating valve is used to adjust the air volume entering the regeneration air duct from the air supply duct.

10. A dehumidification system, characterized in that: It comprises a clean workshop and a dehumidifier as described in any one of claims 1 to 9, and the air outlet of the fresh air duct is connected to the clean workshop.

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