Combined type energy-saving dehumidification unit

Abstract

The utility model discloses a combined type energy-saving dehumidification unit which comprises a rotating wheel dehumidification device. The rotating wheel dehumidification device is provided with a dehumidification rotating wheel; the dehumidification rotating wheel rotates between the dehumidification treatment area E1 and the regeneration area E2; the dehumidification treatment area E1 and the regeneration area E2 are connected with the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 through a switching valve group pipeline; the dehumidification treatment area E1 and the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 dehumidify gas entering from the gas inlet, and then the dehumidified gas is discharged through the gas outlet; after entering the regeneration area E2 through the heat exchange and dehumidification device G1 or the heat exchange and dehumidification device G2, gas entering from the warm air port is exhausted through the exhaust port; the heat exchange and dehumidification device G1 and the heat exchange and dehumidification device G2 can be mutually alternated to enable dehumidification and regeneration to form a closed loop, the requirement for the regeneration temperature can be greatly lowered, and meanwhile the later maintenance cost of equipment is effectively lowered.

Description

Technical Field

[0001] The utility model belongs to the technical field of dehumidification, and in particular relates to a composite energy-saving dehumidification unit. Background Art

[0002] Dehumidification is an important part of air conditioning. Conventional processes require a temperature of 25±3℃ and a relative humidity of 35%-70%. However, there are also some occasions with strict requirements on temperature and humidity. For example, the front section of the lithium battery production process requires an indoor temperature of 22-28℃ and a dew point of -28~-40℃. The middle and back sections require a lower dew point, which can even reach about -60℃. For the above-mentioned low dew point air supply requirements, most dehumidifiers currently use dual-rotor units. Although dual-rotor dehumidifiers have great advantages in dew point control, the size of the entire unit is relatively long and the equipment cost is high. In addition, a high-grade regenerative heat source is required, which undoubtedly increases the operating cost of production.

[0003] The dehumidification wheel is the core component of the rotary dehumidification unit. It will encounter corrosion problems during normal operation. Usually, the degree of corrosion of the secondary wheel is much higher than that of the primary wheel. Generally, the life of the secondary wheel is about 3 years, and the cost of wheel replacement is relatively high. Utility Model Content

[0004] The utility model aims to provide a composite energy-saving dehumidification unit to solve the technical problems in the prior art that the double-rotor dehumidification unit has a high cost and the secondary rotor is easily corroded.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0006] A composite energy-saving dehumidification unit, comprising a rotary dehumidification device; the rotary dehumidification device is provided with a dehumidification rotary wheel; the dehumidification rotary wheel rotates between a dehumidification treatment area E1 and a regeneration area E2; the dehumidification treatment area E1 and the regeneration area E2 are connected to a heat exchange dehumidification device G1 or a heat exchange dehumidification device G2 through a switching valve group pipeline;

[0007] The dehumidification treatment area E1 and the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 dehumidify the incoming gas from the air inlet and discharge it through the air outlet; the gas entering the warm air outlet passes through the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 and enters the regeneration area E2, and is discharged through the exhaust port.

[0008] Preferably, the heat exchange dehumidification device G1 and the heat exchange dehumidification device G2 both include a shell and a spiral fin coil; the spiral fin coil is arranged in the shell; the shell is connected to the air inlet and the air outlet through a switching valve group pipeline, or the shell is connected to the warm air outlet and the exhaust outlet through a switching valve group pipeline; the outer surface of the fin coil is provided with a hygroscopic medium material; the fin coil is used to connect chilled water or hot water.

[0009] Preferably, the switching valve group includes air valve FV01, air valve FV02, air valve FV03, air valve FV04, air valve FV05, air valve FV06, air valve FV07 and air valve FV08;

[0010] The dehumidification treatment area E1 is connected to the shell pipeline of the heat exchange dehumidification device G1 through the air valve FV01, and the dehumidification treatment area E1 is connected to the shell pipeline of the heat exchange dehumidification device G2 through the air valve FV03; the shell of the heat exchange dehumidification device G1 is connected to the air outlet pipeline through the air valve FV05, and the shell of the heat exchange dehumidification device G2 is connected to the air outlet pipeline through the air valve FV07;

[0011] The warm air outlet is connected to the shell pipeline of the heat exchange dehumidification device G1 through the air valve FV02, and the warm air outlet is connected to the shell pipeline of the heat exchange dehumidification device G2 through the air valve FV04; the shell of the heat exchange dehumidification device G1 is connected to the regeneration zone E2 pipeline through the air valve FV06, and the shell of the heat exchange dehumidification device G2 is connected to the regeneration zone E2 pipeline through the air valve FV08.

[0012] Preferably, the finned coil of the heat exchange dehumidification device G1 is connected to the chilled water inlet pipeline through the water valve EV01, and the finned coil of the heat exchange dehumidification device G1 is connected to the chilled water outlet pipeline through the water valve EV03; the finned coil of the heat exchange dehumidification device G1 is connected to the hot water inlet pipeline through the water valve EV06, and the finned coil of the heat exchange dehumidification device G1 is connected to the hot water outlet pipeline through the water valve EV08;

[0013] The fin coil of the heat exchange dehumidification device G2 is connected to the chilled water inlet pipeline through the water valve EV05, and the fin coil of the heat exchange dehumidification device G2 is connected to the chilled water outlet pipeline through the water valve EV07; the fin coil of the heat exchange dehumidification device G2 is connected to the hot water inlet pipeline through the water valve EV02, and the fin coil of the heat exchange dehumidification device G2 is connected to the hot water outlet pipeline through the water valve EV04.

[0014] Preferably, a fresh air valve A1, a primary filter B, a front surface cooler C and a pre-treatment fan D are sequentially arranged on the connecting pipeline from the air inlet to the dehumidification treatment area E1.

[0015] Preferably, a return air branch is provided between the front surface cooler C and the pre-processing fan D; and a return air valve A2 is provided on the return air branch.

[0016] Preferably, the dehumidification treatment area E1 is connected to the intermediate cooler F through a pipeline, and the intermediate cooler F is connected to the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 through a switching valve group pipeline.

[0017] Preferably, the regeneration zone E2 is connected to the heater M and the primary filter L in sequence through pipelines; the primary filter L is connected to the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 through a switching valve group pipeline.

[0018] Preferably, the heat exchange and dehumidification device G1 and the heat exchange and dehumidification device G2 are connected to the processing fan H through a switching valve group pipeline; the processing fan H is sequentially connected to the rear surface cooler I, the rear heater J, the medium efficiency filter K and the air outlet through pipelines.

[0019] Preferably, the ratio of the portion of the dehumidification wheel disposed in the dehumidification treatment zone E1 to the portion of the dehumidification wheel disposed in the regeneration zone E2 is 3:1.

[0020] Preferably, the internal supporting carrier of the dehumidification wheel is glass fiber and ceramic material, and the surface of the dehumidification wheel is paved with a hygroscopic medium material.

[0021] Preferably, the dehumidification wheel rotation speed is set to 6 to 16 rad / h.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The dehumidification treatment area E1 and the regeneration area E2 of the utility model are connected to the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 through a switching valve group pipeline; using the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 to replace the secondary wheel can greatly reduce the regeneration temperature requirement and effectively solve the common corrosion problem of the secondary wheel in the prior art.

[0024] The dehumidification treatment area E1 and the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 of the utility model dehumidify the incoming gas from the air inlet and discharge it through the air outlet; the gas entering from the warm air outlet passes through the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 and enters the regeneration area E2, and is discharged through the exhaust port; the dehumidification wheel rotates between the dehumidification treatment area E1 and the regeneration area E2, and the heat exchange dehumidification device G1 and the heat exchange dehumidification device G2 can dehumidify and regenerate alternately to form a closed loop, which can effectively reduce the later maintenance cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural diagram of a composite energy-saving dehumidification unit provided in this embodiment;

[0026] Figure 2 It is a connection relationship diagram of the heat exchange dehumidification device G1 and the heat exchange dehumidification device G2 provided in this embodiment. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0028] It should be noted that in the description of the present invention, the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "up", "down", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention rather than requiring that the present invention must be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. The terms "front", "rear", "left", "right", "up", and "down" used in the description of the present invention refer to the directions in the accompanying drawings, and the terms "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0029] like Figure 1 to Figure 2 As shown, a composite energy-saving dehumidification unit includes a dehumidification branch and a regeneration branch; the dehumidification branch is provided with an air inlet, a fresh air valve A1, a primary filter B, a front surface cooler C, a pre-treatment fan D, a rotary dehumidifier, a middle surface cooler F, a heat exchange dehumidifier G1 or a heat exchange dehumidifier G2, a treatment fan H, a rear surface cooler I, a rear heater J, a middle efficiency filter K and an air outlet in sequence; a return air branch is provided between the front surface cooler C and the pre-treatment fan D; a return air valve A2 is provided on the return air branch; the regeneration branch is provided with a warm air port, a heat exchange dehumidifier G1 or a heat exchange dehumidifier G2, a primary filter L, a heater M, a rotary dehumidifier, an exhaust fan and an exhaust port in sequence.

[0030] The rotary dehumidification device is provided with a dehumidification rotary wheel, a dehumidification treatment zone E1 and a regeneration zone E2; the internal support carrier of the dehumidification rotary wheel is glass fiber and ceramic material, and the surface of the dehumidification rotary wheel is paved with a hygroscopic medium material; a part of the dehumidification rotary wheel is arranged in the dehumidification treatment zone E1, and another part of the dehumidification rotary wheel is arranged in the regeneration zone E2; the ratio of the part of the dehumidification rotary wheel arranged in the dehumidification treatment zone E1 to the part of the dehumidification rotary wheel arranged in the regeneration zone E2 is 3:1; the dehumidification rotary wheel rotates between the dehumidification treatment zone E1 and the regeneration zone E2; the rotation speed of the dehumidification rotary wheel is set to 6 to 16 rad / h;

[0031] The heat exchange dehumidification device G1 and the heat exchange dehumidification device G2 include a shell and a spiral fin coil; the spiral fin coil is arranged in the shell; the shell is connected to the air inlet and the air outlet through a switching valve group pipeline, or the shell is connected to the warm air outlet and the exhaust outlet through a switching valve group pipeline; the outer surface of the fin coil is provided with a hygroscopic medium material; the fin coil is used to connect chilled water or hot water.

[0032] The dehumidification treatment area E1 and the regeneration area E2 are connected to the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 through a switching valve group pipeline; the switching valve group includes air valve FV01, air valve FV02, air valve FV03, air valve FV04, air valve FV05, air valve FV06, air valve FV07 and air valve FV08;

[0033] The dehumidification treatment area E1 is connected to the shell pipeline of the heat exchange dehumidification device G1 through the air valve FV01, and the dehumidification treatment area E1 is connected to the shell pipeline of the heat exchange dehumidification device G2 through the air valve FV03; the shell of the heat exchange dehumidification device G1 is connected to the air outlet pipeline through the air valve FV05, and the shell of the heat exchange dehumidification device G2 is connected to the air outlet pipeline through the air valve FV07;

[0034] The warm air outlet is connected to the shell pipeline of the heat exchange dehumidification device G1 through the air valve FV02, and the warm air outlet is connected to the shell pipeline of the heat exchange dehumidification device G2 through the air valve FV04; the shell of the heat exchange dehumidification device G1 is connected to the regeneration zone E2 pipeline through the air valve FV06, and the shell of the heat exchange dehumidification device G2 is connected to the regeneration zone E2 pipeline through the air valve FV08.

[0035] The finned coil of the heat exchange dehumidification device G1 is connected to the chilled water inlet pipeline through the water valve EV01, and the finned coil of the heat exchange dehumidification device G1 is connected to the chilled water outlet pipeline through the water valve EV03; the finned coil of the heat exchange dehumidification device G1 is connected to the hot water inlet pipeline through the water valve EV06, and the finned coil of the heat exchange dehumidification device G1 is connected to the hot water outlet pipeline through the water valve EV08;

[0036] The fin coil of the heat exchange dehumidification device G2 is connected to the chilled water inlet pipeline through the water valve EV05, and the fin coil of the heat exchange dehumidification device G2 is connected to the chilled water outlet pipeline through the water valve EV07; the fin coil of the heat exchange dehumidification device G2 is connected to the hot water inlet pipeline through the water valve EV02, and the fin coil of the heat exchange dehumidification device G2 is connected to the hot water outlet pipeline through the water valve EV04.

[0037] Working process: In the initial state, the dehumidification treatment area E1 is connected to the heat exchange dehumidification device G1 through the switching valve group, and the regeneration area E2 is connected to the heat exchange dehumidification device G2;

[0038] The air valve FV01 and the air valve FV05 are opened, and the air valve FV03 and the air valve FV07 are closed; the dehumidification treatment area E1 is connected to the shell pipeline of the heat exchange dehumidification device G1 through the air valve FV01; the shell of the heat exchange dehumidification device G1 is connected to the air outlet pipeline through the air valve FV05; the water valve EV01 and the water valve EV03 are opened, the water valve EV06 and the water valve EV08 are closed, the fin coil of the heat exchange dehumidification device G1 is connected to the chilled water inlet pipeline through the water valve EV01, and the fin coil of the heat exchange dehumidification device G1 is connected to the chilled water outlet pipeline through the water valve EV03;

[0039] The air valve FV04 and the air valve FV08 are opened, and the air valve FV02 and the air valve FV06 are closed; the warm air outlet is connected to the shell pipeline of the heat exchange and dehumidification device G2 through the air valve FV04; the shell of the heat exchange and dehumidification device G2 is connected to the regeneration zone E2 pipeline through the air valve FV08; the water valve EV05 and the water valve EV07 are closed, and the water valve EV02 and the water valve EV04 are opened; the fin coil of the heat exchange and dehumidification device G2 is connected to the hot water inlet pipeline through the water valve EV02, and the fin coil of the heat exchange and dehumidification device G2 is connected to the hot water outlet pipeline through the water valve EV04.

[0040] Outdoor air enters the composite energy-saving dehumidifier unit from the air inlet, and enters the primary filter B through the fresh air valve A1; the primary filter B filters the outdoor air and then passes it into the front surface cooler C; the front surface cooler C cools and dehumidifies the outdoor air, and sends it to the dehumidification treatment area E1 of the rotary dehumidifier through the pre-treatment fan D; the dehumidification rotary disk in the dehumidification treatment area E1 performs adsorption dehumidification to obtain low-temperature dry air, and the low-temperature dry air passes into the middle surface cooler F and the heat exchange dehumidification device G1; the middle surface cooler F performs a second cooling and dehumidification; the heat exchange dehumidification device G1 dehumidifies the low-temperature dry air, and then sends it to the rear surface cooler I, the rear heater J and the medium efficiency filter K in sequence through the treatment fan H; it is then heated to the required temperature by the rear heater J, and finally purified and filtered by the medium efficiency filter K, and finally the clean and dry air is sent into the room through the air outlet;

[0041] The warm air passes through the heat exchange dehumidification device G2, the primary filter L, the heater M and the living area E2 of the rotary dehumidification device; the warm air takes away the water vapor released by the heat exchange dehumidification device G2 and the dehumidification wheel, and discharges the high-temperature and high-humidity air to the outside through the exhaust port through the exhaust fan.

[0042] When the heat exchange dehumidification device G1 adsorbs water vapor to a threshold value, the dehumidification treatment area E1 of the control switching valve group is connected to the heat exchange dehumidification device G2, and the regeneration area E2 is connected to the heat exchange dehumidification device G1;

[0043] The air valve FV01 and the air valve FV05 are closed, and the air valve FV03 and the air valve FV07 are opened; the dehumidification treatment area E1 is connected to the shell pipeline of the heat exchange dehumidification device G2 through the air valve FV03; the shell of the heat exchange dehumidification device G2 is connected to the air outlet pipeline through the air valve FV07; the water valve EV05 and the water valve EV07 are opened, and the water valve EV02 and the water valve EV04 are closed; the fin coil of the heat exchange dehumidification device G2 is connected to the chilled water inlet pipeline through the water valve EV05, and the fin coil of the heat exchange dehumidification device G2 is connected to the chilled water outlet pipeline through the water valve EV07;

[0044] The air valve FV04 and the air valve FV08 are closed, and the air valve FV02 and the air valve FV06 are opened; the warm air outlet is connected to the shell pipeline of the heat exchange and dehumidification device G1 through the air valve FV02; ​​the shell of the heat exchange and dehumidification device G1 is connected to the regeneration zone E2 pipeline through the air valve FV06; the water valve EV01 and the water valve EV03 are closed, and the water valve EV06 and the water valve EV08 are opened, the fin coil of the heat exchange and dehumidification device G1 is connected to the hot water inlet pipeline through the water valve EV06, and the fin coil of the heat exchange and dehumidification device G1 is connected to the hot water outlet pipeline through the water valve EV08.

[0045] The heat exchange dehumidifier G2 dehumidifies the air, and the warm air takes away the water vapor released by the heat exchange dehumidifier G1 and the dehumidification wheel; the heat exchange dehumidifier G1 and the heat exchange dehumidifier G2 are alternately rotated, so that dehumidification and regeneration can be continuously cycled; it can effectively reduce the later maintenance cost of the equipment; the heat exchange dehumidifier G1 and the heat exchange dehumidifier G2 are used to replace the secondary wheel, which reduces the fuselage of the equipment unit and reduces the production cost of the equipment. The regeneration function of dehumidification can be realized by reducing the temperature of the regeneration heat source from the original 100-140℃ to 70℃, which greatly reduces the energy consumption of the dehumidification equipment in terms of heat source.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A composite energy-saving dehumidification unit, characterized in that: It includes a rotary dehumidifier; the rotary dehumidifier is provided with a dehumidifier wheel; the dehumidifier wheel rotates between the dehumidification treatment area E1 and the regeneration area E2; the dehumidification treatment area E1 and the regeneration area E2 are connected to the heat exchange dehumidifier G1 or the heat exchange dehumidifier G2 through a switching valve group pipeline; The dehumidification treatment area E1 and the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 dehumidify the incoming gas from the air inlet and discharge it through the air outlet; the gas entering the warm air outlet passes through the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 and enters the regeneration area E2, and is discharged through the exhaust port.

2. The composite energy-saving dehumidification unit according to claim 1 is characterized in that: The heat exchange dehumidification device G1 and the heat exchange dehumidification device G2 both include a shell and a spiral fin coil; the spiral fin coil is arranged in the shell; the shell is connected to the air inlet and the air outlet through a switching valve group pipeline, or the shell is connected to the warm air outlet and the exhaust outlet through a switching valve group pipeline; the outer surface of the fin coil is provided with a hygroscopic medium material; the fin coil is used to connect chilled water or hot water.

3. The composite energy-saving dehumidification unit according to claim 2 is characterized in that: The switching valve group includes air valve FV01, air valve FV02, air valve FV03, air valve FV04, air valve FV05, air valve FV06, air valve FV07 and air valve FV08; The dehumidification treatment area E1 is connected to the shell pipeline of the heat exchange dehumidification device G1 through the air valve FV01, and the dehumidification treatment area E1 is connected to the shell pipeline of the heat exchange dehumidification device G2 through the air valve FV03; the shell of the heat exchange dehumidification device G1 is connected to the air outlet pipeline through the air valve FV05, and the shell of the heat exchange dehumidification device G2 is connected to the air outlet pipeline through the air valve FV07; The warm air outlet is connected to the shell pipeline of the heat exchange dehumidification device G1 through the air valve FV02, and the warm air outlet is connected to the shell pipeline of the heat exchange dehumidification device G2 through the air valve FV04; the shell of the heat exchange dehumidification device G1 is connected to the regeneration zone E2 pipeline through the air valve FV06, and the shell of the heat exchange dehumidification device G2 is connected to the regeneration zone E2 pipeline through the air valve FV08.

4. The composite energy-saving dehumidification unit according to claim 2 is characterized in that: The finned coil of the heat exchange dehumidification device G1 is connected to the chilled water inlet pipeline through the water valve EV01, and the finned coil of the heat exchange dehumidification device G1 is connected to the chilled water outlet pipeline through the water valve EV03; the finned coil of the heat exchange dehumidification device G1 is connected to the hot water inlet pipeline through the water valve EV06, and the finned coil of the heat exchange dehumidification device G1 is connected to the hot water outlet pipeline through the water valve EV08; The fin coil of the heat exchange dehumidification device G2 is connected to the chilled water inlet pipeline through the water valve EV05, and the fin coil of the heat exchange dehumidification device G2 is connected to the chilled water outlet pipeline through the water valve EV07; the fin coil of the heat exchange dehumidification device G2 is connected to the hot water inlet pipeline through the water valve EV02, and the fin coil of the heat exchange dehumidification device G2 is connected to the hot water outlet pipeline through the water valve EV04.

5. The composite energy-saving dehumidification unit according to claim 1 is characterized in that: A fresh air valve A1, a primary filter B, a front surface cooler C and a pre-treatment fan D are sequentially arranged on the connecting pipeline from the air inlet to the dehumidification treatment area E1.

6. The composite energy-saving dehumidification unit according to claim 5, characterized in that: A return air branch is provided between the front surface cooler C and the pre-processing fan D; and a return air valve A2 is provided on the return air branch.

7. The composite energy-saving dehumidification unit according to claim 1, characterized in that: The dehumidification treatment area E1 is connected to the intermediate cooler F through a pipeline, and the intermediate cooler F is connected to the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 through the switching valve group pipeline.

8. The composite energy-saving dehumidification unit according to claim 1, characterized in that: The regeneration zone E2 is connected to the heater M and the primary filter L in sequence through pipelines; the primary filter L is connected to the heat exchange dehumidification device G1 or the heat exchange dehumidification device G2 through the switching valve group pipeline.

9. The composite energy-saving dehumidification unit according to claim 1, characterized in that: The heat exchange and dehumidification device G1 and the heat exchange and dehumidification device G2 are connected to the processing fan H through the switching valve group pipeline; the processing fan H is connected to the rear surface cooler I, the rear heater J, the medium efficiency filter K and the air outlet in sequence through pipelines.

10. The composite energy-saving dehumidification unit according to claim 1, characterized in that: The ratio of the portion of the dehumidification wheel disposed in the dehumidification treatment zone E1 to the portion of the dehumidification wheel disposed in the regeneration zone E2 is 3:1.

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