Double-rotating-wheel dehumidification system integrating direct expansion deep cooling and heat pump regeneration and double-rotating-wheel dehumidifier

Abstract

The utility model provides a double-rotating-wheel dehumidification system integrating direct expansion copious cooling and heat pump regeneration and a double-rotating-wheel dehumidifier. The double-rotating-wheel dehumidification system comprises a first-stage rotating wheel treatment air section, a second-stage rotating wheel treatment air section, a regeneration air treatment air section, a direct expansion copious cooling section, a first regeneration heat pump section and a second regeneration heat pump section. The second-stage rotating wheel treatment air section is positioned on a first air outlet path of the first-stage rotating wheel treatment air section; the regenerated air treatment air section is positioned on a second air outlet path of the first-stage rotating wheel treatment air section; the first-stage rotating wheel treatment air section and the second-stage rotating wheel treatment air section are respectively connected with the direct expansion cryogenic section; the regenerated air treatment air section is connected with the first regenerated heat pump section and the second regenerated heat pump section respectively; and the second regeneration heat pump section is also connected with the first-stage rotating wheel treatment air section. The heat of the direct expansion cryogenic section, the first regeneration heat pump section and the second regeneration heat pump section is fully utilized, and the energy efficiency of the double-rotating-wheel dehumidification system is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial dehumidification technical field especially, and it is a kind of double-rotor dehumidification system and double-rotor dehumidifier integrated with direct expansion deep cooling and heat pump regeneration. BACKGROUND

[0002] Under the background of "double carbon", in recent years, the market demand of lithium-ion power battery presents the trend of rapid growth, which makes the energy consumption problem of lithium-ion battery production workshop also received widespread attention. In the production process of lithium-ion battery, high-efficiency rotary dehumidifier unit is usually used to control humidity, and the wet air is cooled and dehumidified by the front cooler, and then enters the rotary processing area, the moisture in the air is adsorbed by the rotary, and becomes dry air, and then is delivered to the room by the fan. The wet air in the regeneration area needs to be heated to 120-135℃, and then enters the rotary regeneration area for desorption, and the high-temperature and high-humidity air after desorption is discharged to the outdoor, and the energy consumption is high in use.

[0003] The rotary dehumidifier disclosed in the utility model with publication number CN218627119U is based on direct expansion heat pump deep dehumidification and regeneration heating, a heat pump system is added after the front cooler, the direct expansion system is used for further dehumidification after the front cooler is cooled, the condensation side of the direct expansion system adopts water cooling or air volume, and the heat of condensation is not fully utilized. When the direct expansion system fails, the high-temperature and high-humidity air discharged from the regeneration side has a larger humidity, which exceeds the adjustment range of the regeneration side heat pump compressor, and when the direct expansion system does not work, the regeneration heat pump has the risk of shutdown. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the utility model is to provide a double-rotor dehumidification system and double-rotor dehumidifier integrated with direct expansion deep cooling and heat pump regeneration, to solve the problem that the heat generated in the working process of the rotary dehumidifier in the prior art is not fully utilized.

[0005] In order to solve the above technical problems, the utility model provides a double-rotor dehumidification system integrated with direct expansion deep cooling and heat pump regeneration, which comprises: a first rotary processing air section, a second rotary processing air section, a regeneration air processing air section, a direct expansion deep cooling section, a first regeneration heat pump section and a second regeneration heat pump section; wherein the air outlet path of the first rotary processing air section is divided into a first air outlet path and a second air outlet path by setting an outlet; the second rotary processing air section is located on the first air outlet path of the first rotary processing air section; the regeneration air processing air section is located on the second air outlet path of the first rotary processing air section; the first rotary processing air section and the second rotary processing air section are connected with the direct expansion deep cooling section respectively; the regeneration air processing air section is connected with the first regeneration heat pump section and the second regeneration heat pump section respectively; and the second regeneration heat pump section is further connected with the first rotary processing air section.

[0006] In some embodiments of the utility model, the first-stage runner treatment air section is sequentially provided with a primary filter, a front surface cooler, a treatment area of a first-stage runner and a treatment fan along an air direction.

[0007] In some embodiments of the utility model, the second-stage runner treatment air section is sequentially provided with a treatment area of a second-stage runner and a medium-efficiency filter along an air direction.

[0008] In some embodiments of the utility model, the direct expansion cryogenic section comprises a direct expansion evaporator, a direct expansion compressor, a first electromagnetic valve, a second electromagnetic valve, a direct expansion air-cooled condenser, a direct expansion water-cooled condenser and a direct expansion throttling element; wherein the direct expansion evaporator is arranged between the front surface cooler and the treatment area of the first-stage runner; the direct expansion air-cooled condenser is arranged between the treatment area of the second-stage runner and the medium-efficiency filter; the direct expansion evaporator is connected with the direct expansion compressor and the direct expansion throttling element respectively; the direct expansion compressor is connected with one end of the first electromagnetic valve and one end of the second electromagnetic valve respectively; the direct expansion water-cooled condenser is connected with the direct expansion throttling element, the other end of the second electromagnetic valve and the direct expansion air-cooled condenser respectively; the direct expansion air-cooled condenser is further connected with the other end of the first electromagnetic valve; and a direct expansion regulating water valve is further arranged on the direct expansion water-cooled condenser.

[0009] In some embodiments of the utility model, the regeneration air treatment air section is sequentially provided with a third area of a second runner, a first regulating air valve, a first regeneration heater, a regeneration area of a second runner and a second regeneration fan, a second regeneration heater, a regeneration area of a first runner and a first regeneration fan along an air direction; a regeneration air supplement inlet is arranged between the second regeneration fan and the second regeneration heater.

[0010] In some embodiments of the utility model, the second regeneration heat pump section comprises a second regeneration heat pump compressor, a second regeneration heat pump condenser, a second regeneration heat pump throttling element and a second regeneration heat pump evaporator; wherein the second regeneration heat pump condenser is arranged between the first regulating air valve and the first regeneration heater; the second regeneration heat pump evaporator is arranged between the treatment fan and the outlet; the second regeneration heat pump compressor is connected with the second regeneration heat pump condenser and the second regeneration heat pump evaporator respectively; and the second regeneration heat pump throttling element is connected with the second regeneration heat pump condenser and the second regeneration heat pump evaporator respectively.

[0011] In some embodiments of the utility model, the first regenerative heat pump section includes: a first regenerative heat pump compressor, a first regenerative heat pump condenser, a first regenerative heat pump throttling element and a first regenerative heat pump evaporator, wherein the first regenerative heat pump condenser is arranged between the second regenerative heater and the regenerative air inlet, the first regenerative heat pump evaporator is arranged between the regenerative zone of the first runner and the first regenerative air blower, the first regenerative heat pump compressor is connected with the first regenerative heat pump condenser and the first regenerative heat pump evaporator respectively, and the first regenerative heat pump throttling element is connected with the first regenerative heat pump condenser and the first regenerative heat pump evaporator respectively.

[0012] In some embodiments of the utility model, the regenerative air treatment air section is further connected with a bypass air section, wherein a bypass air inlet is arranged between the first regenerative heat pump evaporator and the regenerative zone of the first runner, one end of the bypass air section is communicated with the bypass air inlet, a bypass air outlet is arranged on the air outlet path of the first regenerative air blower, the other end of the bypass air section is communicated with the bypass air outlet, and a second air regulating valve is arranged on the bypass air section.

[0013] In some embodiments of the utility model, a front surface cooling regulating water valve is arranged on the front surface cooler.

[0014] The utility model further provides a double-runner dehumidifier, the double-runner dehumidifier includes the double-runner dehumidification system integrated with direct expansion cryogenic and heat pump regeneration as described above.

[0015] As described above, the double-runner dehumidification system integrated with direct expansion cryogenic and heat pump regeneration and the double-runner dehumidifier of the utility model have the following beneficial effects:

[0016] The utility model makes full use of the heat of the direct expansion cryogenic section, the first regenerative heat pump section and the second regenerative heat pump section, and improves the energy efficiency of the double-runner dehumidification system. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It shows the schematic diagram of the double-runner dehumidification system integrated with direct expansion cryogenic and heat pump regeneration of the utility model;

[0018] Figure 2 It shows the schematic diagram of the regenerative air treatment air section of the utility model;

[0019] Figure 3 It shows the schematic diagram of the direct expansion cryogenic section and the regenerative heat pump section of the utility model.

[0020] Figure 4 It shows the schematic diagram of the bypass air inlet and the bypass air outlet of the utility model.

[0021] ELEMENT NUMBER EXPLANATION

[0022] 1 Primary rotary wheel process air section

[0023] 11 Primary filter

[0024] 12 Pre-cooler

[0025] 13 Primary rotary wheel process area

[0026] 14 Process air fan

[0027] 2 Secondary rotary wheel process air section

[0028] 21 Secondary rotary wheel process area

[0029] 22 Medium efficiency filter

[0030] 3 Regeneration air process air section

[0031] 31 Third zone of second rotary wheel

[0032] 32 First regulated air valve

[0033] 33 First regeneration heater

[0034] 34 Regeneration zone of second rotary wheel

[0035] 35 Second regeneration air fan

[0036] 36 Second regeneration heater

[0037] 37 Regeneration zone of first rotary wheel

[0038] 38 First regeneration air fan

[0039] 39 Regeneration makeup air inlet

[0040] 4 Direct expansion cryogenic section

[0041] 41 Direct expansion evaporator

[0042] 42 Direct expansion compressor

[0043] 43 First solenoid valve

[0044] 44 Second solenoid valve

[0045] 45 Direct expansion air cooled condenser

[0046] 46 Direct expansion water cooled condenser

[0047] 461 Direct expansion regulated water valve

[0048] 47 Direct expansion throttling element

[0049] 5 First regeneration heat pump section

[0050] 51 first regenerative heat pump compressor

[0051] 52 first regenerative heat pump condenser

[0052] 53 first regenerative heat pump throttling element

[0053] 54 first regenerative heat pump evaporator

[0054] 6 second regenerative heat pump section

[0055] 61 second regenerative heat pump compressor

[0056] 62 second regenerative heat pump condenser

[0057] 63 second regenerative heat pump throttling element

[0058] 64 second regenerative heat pump evaporator

[0059] 7 bypass air handling section

[0060] 71 second regulating air valve DETAILED DESCRIPTION

[0061] The implementation of the present application will be described by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0062] It should be understood that the structures, proportions, sizes, etc. shown in the drawings attached to the specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the specification are only for the convenience of clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship without substantially changing the technical content is also considered as the scope of the present application.

[0063] As shown in Figures 1 to 4 The present application provides a dual-rotor dehumidification system integrated with direct expansion cryogenic and heat pump regeneration.

[0064] The dual-rotor dehumidification system integrated with direct expansion cryogenic and heat pump regeneration comprises:

[0065] a first-stage rotor air handling section 1, a second-stage rotor air handling section 2, a regeneration air handling section 3, a direct expansion cryogenic section 4, a first regenerative heat pump section 5, and a second regenerative heat pump section 6.

[0066] Among them, the air outlet path of the first-stage rotary air handling section 1 is divided into a first air outlet path and a second air outlet path by setting an outlet.

[0067] The secondary rotary air handling section 2 is located on the first air outlet path of the primary rotary air handling section 1; the regenerated air handling section 3 is located on the second air outlet path of the primary rotary air handling section 1.

[0068] The first-stage rotary air handling section 1 and the second-stage rotary air handling section 2 are respectively connected to the direct expansion cryogenic section 4; the regenerated air handling section 3 is respectively connected to the first regenerated heat pump section 5 and the second regenerated heat pump section 6; the second regenerated heat pump section 6 is also connected to the first-stage rotary air handling section 1.

[0069] It should be noted that in this embodiment, by setting an outlet on the air outlet path of the primary rotor processing section 1, the air delivered from the primary rotor processing section 1 is divided into two streams: one stream enters the primary rotor processing section 1, and the other stream enters the secondary rotor processing section 2. That is, the air outlet of the primary rotor processing section 1 is divided into two streams, namely the first air outlet path and the second air outlet path. The primary rotor processing section 1 is located in the first air outlet path, and the secondary rotor processing section 2 is located in the second air outlet path.

[0070] In one embodiment, such as Figure 1 As shown, the primary rotor processing section 1 is provided with a primary filter 11, a front surface cooler 12, a primary rotor processing zone 13, and a processing fan 14 in sequence along the wind direction.

[0071] In one embodiment, such as Figures 1 to 4 As shown, the front surface cooler 12 is equipped with a front surface cooler regulating water valve 121.

[0072] It should be noted that the pre-filter 11 is used to filter outdoor fresh air. Filters in dehumidification systems purify air through porous filter materials to ensure air cleanliness in workshops or other applications. Based on filtration efficiency, they are divided into pre-filters and medium-efficiency filters. Pre-filters and medium-efficiency filters can filter out some impurities in the air. Pre-filters are simple, basic filters with a filtration efficiency of less than 90%, and mainly include pre-filter panel filters, pre-filter pleated filters, pre-filter bag filters, and metal mesh regeneration filters.

[0073] The main function of the front surface cooler 12 is to cool and dehumidify the air to be treated for the process workshop or other production workshop. The front surface cooler is used to cool and dehumidify the air to be treated, control the temperature and humidity of the air to be treated, and make the air to be treated reach a relatively low temperature and humidity state before entering the next step. The front surface cooler 12 adjusts the water flow of the front surface cooler 12 through the front surface cooling water valve 121 to control the temperature of the front surface cooler 12. The air handling fan 14 is used to send air.

[0074] In an embodiment, as shown in Figure 1 The secondary runner air treatment section 2 is provided with a secondary runner treatment area 21 and a medium efficiency filter 22 along the air direction.

[0075] It should be noted that the filtration efficiency of the medium efficiency filter 23 is between 90% and 95%, mainly including medium efficiency bag filter, glass fiber filter, etc. Compared with the primary efficiency filter 11, the medium efficiency filter 23 has better and more stable filtration effect and longer service life. The combination of filters with different efficiencies in the dehumidification system, i.e. the simultaneous use of the primary efficiency filter 11 and the medium efficiency filter 23, can well filter the air to meet the purification requirements to ensure that the dehumidifier can work normally.

[0076] In an embodiment, as shown in Figure 3 The direct expansion deep cooling section 4 includes a direct expansion evaporator 41, a direct expansion compressor 42, a first electromagnetic valve 43, a second electromagnetic valve 44, a direct expansion air-cooled condenser 45, a direct expansion water-cooled condenser 46, and a direct expansion throttling element 47.

[0077] The direct expansion evaporator 41 is arranged between the front surface cooler 12 and the treatment area 13 of the primary runner; the direct expansion air-cooled condenser 45 is arranged between the treatment area 21 of the secondary runner and the medium efficiency filter 22; the direct expansion evaporator 41 is connected with the direct expansion compressor 41 and the direct expansion throttling element 47; the direct expansion compressor 42 is connected with one end of the first electromagnetic valve 43 and one end of the second electromagnetic valve 44; the direct expansion water-cooled condenser 46 is connected with the direct expansion throttling element 47, the other end of the second electromagnetic valve 44, and the direct expansion air-cooled condenser 45; the direct expansion air-cooled condenser 45 is also connected with the other end of the first electromagnetic valve 43; the direct expansion water-cooled condenser 46 is also provided with a direct expansion water regulating valve 461.

[0078] It should be noted that the direct expansion evaporator 41 is the site where the liquid refrigerant in the refrigeration system directly evaporates (expands). It absorbs heat from the air outside the coil by directly evaporating the refrigerant within the evaporator coil, thus achieving air cooling. The direct expansion compressor 42 is a device that directly compresses low-pressure refrigerant into a high-pressure state in the refrigeration system. The direct expansion air-cooled condenser 45 uses a fan to cool the high-temperature, high-pressure refrigerant gas, causing it to condense into high-pressure liquid refrigerant. The high-temperature, high-pressure refrigerant gas passes through the direct expansion water-cooled condenser 46, comes into contact with the cooling water in the direct expansion water-cooled condenser 46, and dissipates heat into the cooling water through heat transfer, cooling the refrigerant gas and converting it into a high-pressure liquid. The direct expansion throttling element 47 is a key component in the refrigeration system. Its main function is to throttle and reduce the pressure of the high-pressure refrigerant liquid from the condenser to a low-pressure, low-temperature state so that it can enter the evaporator for evaporation and heat absorption. The direct expansion regulating water valve 461 is used to regulate the flow rate of cooling water in the direct expansion water-cooled condenser 46.

[0079] In one specific embodiment, such as Figure 3 As shown, during summer operation, the dual-rotor dehumidification system opens the first solenoid valve 43 and closes the second solenoid valve 44. The low-temperature, low-pressure refrigerant in the direct expansion evaporator 41 evaporates due to absorbing heat from the air supplied by the front surface cooler 12. The evaporated refrigerant gas is drawn into the direct expansion compressor 42 and compressed into a high-temperature, high-pressure refrigerant gas. Then, the direct expansion air-cooled condenser 45 condenses and releases heat on the high-temperature, high-pressure refrigerant gas supplied by the direct expansion compressor 42, turning it into a refrigerant gas-liquid mixture. After further condensation and heat release by the direct expansion water-cooled condenser 46, it becomes a subcooled refrigerant liquid. The subcooled refrigerant liquid is then throttled by the direct expansion throttling element 47 into a low-temperature, low-pressure refrigerant liquid and returns to the direct expansion evaporator 41.

[0080] When the dual-rotor dehumidification system operates in spring, autumn, or winter, the first solenoid valve 43 is closed and the second solenoid valve 44 is opened. The low-temperature, low-pressure refrigerant in the direct expansion evaporator 41 evaporates by absorbing heat from the air supplied by the front surface cooler 12. The evaporated refrigerant gas is then drawn into the direct expansion compressor 42 and compressed into a high-temperature, high-pressure refrigerant gas. The direct expansion water-cooled condenser 46 then condenses and releases heat from the high-temperature, high-pressure refrigerant gas supplied by the direct expansion compressor 42, transforming it into a subcooled refrigerant gas. The subcooled refrigerant gas is then throttled by the direct expansion throttling element 47 into a low-temperature, low-pressure refrigerant liquid, which returns to the direct expansion evaporator 41.

[0081] In one embodiment, such as Figure 2As shown, the second regeneration heat pump section 6 includes: a second regeneration heat pump compressor 61, a second regeneration heat pump condenser 62, a second regeneration heat pump throttling element 63, and a second regeneration heat pump evaporator 64; wherein the second regeneration heat pump condenser 62 is arranged between the first regulating air valve 32 and the first regeneration heater 33; the second regeneration heat pump evaporator 64 is arranged between the handling air fan 14 and the outlet; the second regeneration heat pump compressor 61 is connected with the second regeneration heat pump condenser 62 and the second regeneration heat pump evaporator 64 respectively; and the second regeneration heat pump throttling element 63 is connected with the second regeneration heat pump condenser 62 and the second regeneration heat pump evaporator 64 respectively.

[0082] In an embodiment, as shown in FIG. 1, the first regeneration heat pump section 5 includes: a first regeneration heat pump compressor 51, a first regeneration heat pump condenser 52, a first regeneration heat pump throttling element 53, and a first regeneration heat pump evaporator 54; wherein the first regeneration heat pump condenser 52 is arranged between the second regeneration heater 36 and the regeneration air supplement inlet 39; the first regeneration heat pump evaporator 54 is arranged between the regeneration area 37 of the first rotor and the first regeneration air fan 38; the first regeneration heat pump compressor 51 is connected with the first regeneration heat pump condenser 52 and the first regeneration heat pump evaporator 54 respectively; and the first regeneration heat pump throttling element 53 is connected with the first regeneration heat pump condenser 52 and the first regeneration heat pump evaporator 54 respectively. Figure 3 In a specific embodiment, as shown in FIG. 2, the low-temperature and low-pressure refrigerant is evaporated in the second regeneration heat pump evaporator 64 due to heat absorption, and the evaporated refrigerant gas is sucked into the second regeneration heat pump compressor 61 and compressed into high-temperature and high-pressure refrigerant gas by the second regeneration heat pump compressor 61. The high-temperature and high-pressure refrigerant gas enters the second regeneration heat pump condenser 62 and is condensed to release heat into refrigerant subcooled liquid. The refrigerant subcooled liquid is throttled into low-temperature and low-pressure refrigerant liquid by the second regeneration heat pump throttling element 63, and returns to the second regeneration heat pump evaporator 64.

[0083] Figure 3 In an embodiment, as shown in FIG. 1, the first regeneration heat pump section 5 includes: a first regeneration heat pump compressor 51, a first regeneration heat pump condenser 52, a first regeneration heat pump throttling element 53, and a first regeneration heat pump evaporator 54; wherein the first regeneration heat pump condenser 52 is arranged between the second regeneration heater 36 and the regeneration air supplement inlet 39; the first regeneration heat pump evaporator 54 is arranged between the regeneration area 37 of the first rotor and the first regeneration air fan 38; the first regeneration heat pump compressor 51 is connected with the first regeneration heat pump condenser 52 and the first regeneration heat pump evaporator 54 respectively; and the first regeneration heat pump throttling element 53 is connected with the first regeneration heat pump condenser 52 and the first regeneration heat pump evaporator 54 respectively.

[0084] In an embodiment, as shown in FIG. 1, the first regeneration heat pump section 5 includes: a first regeneration heat pump compressor 51, a first regeneration heat pump condenser 52, a first regeneration heat pump throttling element 53, and a first regeneration heat pump evaporator 54; wherein the first regeneration heat pump condenser 52 is arranged between the second regeneration heater 36 and the regeneration air supplement inlet 39; the first regeneration heat pump evaporator 54 is arranged between the regeneration area 37 of the first rotor and the first regeneration air fan 38; the first regeneration heat pump compressor 51 is connected with the first regeneration heat pump condenser 52 and the first regeneration heat pump evaporator 54 respectively; and the first regeneration heat pump throttling element 53 is connected with the first regeneration heat pump condenser 52 and the first regeneration heat pump evaporator 54 respectively. Figure 3 In a specific embodiment, as shown in FIG. 2, the low-temperature and low-pressure refrigerant is evaporated in the second regeneration heat pump evaporator 64 due to heat absorption, and the evaporated refrigerant gas is sucked into the second regeneration heat pump compressor 61 and compressed into high-temperature and high-pressure refrigerant gas by the second regeneration heat pump compressor 61. The high-temperature and high-pressure refrigerant gas enters the second regeneration heat pump condenser 62 and is condensed to release heat into refrigerant subcooled liquid. The refrigerant subcooled liquid is throttled into low-temperature and low-pressure refrigerant liquid by the second regeneration heat pump throttling element 63, and returns to the second regeneration heat pump evaporator 64.

[0085] Figure 3 ​​As shown, the low-temperature and low-pressure refrigerant is evaporated due to heat absorption in the first regenerative heat pump evaporator 54, and the evaporated refrigerant gas is sucked into and compressed into high-temperature and high-pressure refrigerant gas by the first regenerative heat pump compressor 51. The high-temperature and high-pressure refrigerant gas is condensed into refrigerant subcooled liquid after entering the first regenerative heat pump condenser 52. The refrigerant subcooled liquid is throttled into low-temperature and low-pressure refrigerant liquid by the first regenerative heat pump throttling element 53, and returns to the first regenerative heat pump evaporator 54.

[0086] It should be noted that the first regenerative heat pump evaporator 54 and the second regenerative heat pump evaporator 64 are both evaporators, which are places where liquid refrigerant is directly evaporated (expanded) in a refrigeration system. It absorbs the heat of the air outside the evaporator coil by directly evaporating the refrigerant in the evaporator coil, and realizes refrigeration of the air. The first regenerative heat pump compressor 51 and the second regenerative heat pump compressor 52 are both compressors, which are devices that directly compress low-pressure refrigerant into high-pressure state in a refrigeration system. The first regenerative heat pump condenser 52 and the second regenerative heat pump condenser 62 are both condensers, which cool high-temperature and high-pressure refrigerant gas by fan to condense it into high-pressure liquid refrigerant. The high-temperature and high-pressure refrigerant gas passes through the condenser and contacts the cooling water in the condenser, and the heat is dissipated to the cooling water by heat transfer, so that the refrigerant gas is cooled and converted into high-pressure liquid. The first regenerative heat pump throttling element 53 and the second regenerative heat pump throttling element 63 are both throttling elements, which are key components in a refrigeration system. Its main function is to throttle and depressurize the high-pressure refrigerant liquid from the condenser into a low-pressure and low-temperature state, so as to enter the evaporator for evaporation and heat absorption.

[0087] In an embodiment, as shown in Figure 4 The regenerative air treatment air section 3 is also connected with a bypass air section 7; wherein a bypass air inlet is arranged between the first regenerative heat pump evaporator 54 and the regeneration area 37 of the first rotary wheel, one end of the bypass air section 7 is in communication with the bypass air inlet; a bypass air outlet is arranged on the air outlet path of the first regenerative air fan 38, and the other end of the bypass air section 7 is in communication with the bypass air outlet; the bypass air section 7 is provided with a second regulating air valve 71 for controlling the on-off of the bypass air section.

[0088] In an embodiment, the treatment area 13 of the first-stage rotary wheel and the regeneration area 37 of the first-stage rotary wheel constitute a first-stage rotary wheel. The treatment area 21 of the second-stage rotary wheel, the third area 31 of the second-stage rotary wheel, and the regeneration area 34 of the second-stage rotary wheel constitute a second-stage rotary wheel.

[0089] It should be noted that both the primary and secondary rotors are dehumidification rotors, which are the main components of the rotor dehumidification system. The surface of the dehumidification rotor is coated with a desiccant and has honeycomb-shaped porous channels. By slowly rotating the dehumidification rotor, it can absorb the moisture in the humid air flowing through it, thereby achieving the purpose of dehumidifying the air to be treated.

[0090] The following is in conjunction with the appendix Figure 1 To be continued Figure 4 The working process of a dual-rotor dehumidification system integrating direct expansion cryogenic cooling and heat pump regeneration is explained below:

[0091] The direction of air flow is as follows Figure 1 As indicated by the arrows, outdoor fresh air (humid air) is filtered by the pre-filter 11 and then enters the front surface cooler 12 for cooling and dehumidification. Air exiting the front surface cooler 12 enters the direct expansion evaporator 41 for deep cooling and dehumidification. The dehumidified air then enters the processing zone 41 of the first rotor, where moisture is adsorbed by the rotor, becoming dry air. The dry air exiting the processing zone 41 of the first rotor is then transported by the processing fan 14 to the second regenerative heat pump evaporator 64 for cooling. A portion of the dry air from the second regenerative heat pump evaporator 64 passes through the second rotor processing zone 21 for further moisture adsorption, then passes through the direct expansion air-cooled condenser 45 for heating, resulting in dry air with suitable temperature and humidity. This dry air is then filtered by the medium-efficiency filter 10 and then delivered into the room from the air supply end.

[0092] With the first regulating damper 32 open, another portion of the dry air passes through the third zone 21 of the second rotor, becoming air with a higher temperature and lower dew point. This air is then heated by the condenser 62 of the second regenerative heat pump and further heated by the first regenerative heater 33. Air exiting the first regenerative heater 33 enters the regeneration zone 34 of the second rotor, desorbing moisture and restoring its dehumidification capacity. Air exiting the regeneration zone 34 is then transported by the second regenerative fan 35. This air is mixed with fresh air entering from the regeneration inlet 39. The mixed air is then heated by the condenser 52 of the first regenerative heat pump and further heated by the second regenerative heater 36. Air exiting the second regenerative heater 36 enters the regeneration zone 37 of the first rotor, desorbing moisture and restoring its dehumidification capacity. The high-humidity air coming out of the regeneration zone 37 of the first rotor is subjected to energy recovery by the first regeneration heat pump evaporator 54, and the air coming out of the first regeneration heat pump evaporator 54 is discharged to the outside through the exhaust outlet of the first regeneration fan 38.

[0093] It should be noted that the direct expansion evaporator 41 is arranged behind the front surface cooler 12, and the humidity of the air is reduced through the direct expansion evaporator 41, and then the air is sent into the treatment area 13 of the first runner, thereby reducing the dehumidification load of the runner, reducing the regeneration temperature, and further reducing the operation energy consumption. The direct expansion deep cooling section adopts a cascade condensation mode, and the air is sequentially cooled through the direct expansion air-cooled condenser 45 and the direct expansion water-cooled condenser 46. The direct expansion evaporator 41 is arranged in front of the treatment area 41 of the first runner, the air discharged from the front surface cooler 12 is dehumidified, the direct expansion air-cooled condenser 45 is arranged behind the treatment area 21 of the second runner, and the air discharged from the treatment area 21 of the second runner is heated, and the heat of the direct expansion evaporator 41 and the direct expansion air-cooled condenser 45 is fully utilized, thereby improving the operation efficiency and reducing the energy consumption.

[0094] It should be noted that the second regeneration heat pump condenser 62 is arranged in front of the regeneration area 34 of the second runner, the condensation heat of the second regeneration heat pump condenser 62 is used to heat the regeneration air, the second regeneration heat pump evaporator 64 is arranged behind the treatment fan 14, and the dry air discharged from the treatment area of the first runner is cooled. The heat of the second regeneration heat pump condenser 62 and the second regeneration heat pump evaporator 64 is fully utilized, thereby improving the energy efficiency. The first regeneration heat pump condenser 52 is arranged in front of the second regeneration heater 36, the condensation heat of the first regeneration heat pump condenser 52 is used to heat the regeneration air, the first regeneration heat pump evaporator 54 is arranged in front of the first regeneration fan 38, and the waste heat of the exhaust air of the regeneration area 37 of the first runner is recovered, and the heat of the first regeneration heat pump condenser 52 and the first regeneration heat pump evaporator 54 is fully utilized, thereby improving the energy efficiency.

[0095] Further, the second adjusting air valve 71 on the bypass air section 7 is used to adjust the air volume flowing through the first regeneration heat pump evaporator 54. When the direct expansion deep cooling section 4 does not work, since the absolute humidity of the wet air discharged from the regeneration area 34 of the second runner is high and the load is large, the first regeneration heat pump evaporator 54 cannot completely process all the wet air, and therefore part of the wet air is discharged to the outdoor through the bypass air section 7, thereby improving the stability of the coupled operation between the direct expansion deep cooling section and the regeneration heat pump section.

[0096] Similar to the above embodiment, the utility model also provides a double runner dehumidifier, which comprises the double runner dehumidification system integrated with the direct expansion deep cooling and heat pump regeneration as described above. It should be noted that the double runner dehumidification system integrated with the direct expansion deep cooling and heat pump regeneration has been described in the above embodiment, and will not be described here.

[0097] The utility model discloses a kind of integrated direct expansion cryogenic and heat pump regeneration double-rotor dehumidification system and double-rotor dehumidifier, the double-rotor dehumidification system includes: first-stage runner processing air section, second-stage runner processing air section, regeneration air processing air section, direct expansion cryogenic section, first regeneration heat pump section and second regeneration heat pump section;Second-stage runner processing air section is located on the first air outlet path of first-stage runner processing air section;Regeneration air processing air section is located on the second air outlet path of first-stage runner processing air section;First-stage runner processing air section and second-stage runner processing air section are connected with direct expansion cryogenic section respectively;Regeneration air processing air section is connected with first regeneration heat pump section and second regeneration heat pump section respectively;Second regeneration heat pump section is also connected with first-stage runner processing air section.The utility model makes full use of the heat of direct expansion cryogenic section, first regeneration heat pump section and second regeneration heat pump section, and improves the energy efficiency of double-rotor dehumidification system.Therefore, the utility model effectively overcomes the shortcomings in the prior art and has high industrial utilization value.

[0098] The above embodiments only exemplarily illustrate the principles and effects of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A dual rotary dehumidification system integrated with direct expansion cryogenic and heat pump regeneration, characterized in that, include: The first-stage rotary air handling section (1), the second-stage rotary air handling section (2), the regenerated air handling section (3), the direct expansion cryogenic section (4), the first regenerated heat pump section (5), and the second regenerated heat pump section (6); Among them, the air outlet path of the first-stage rotary air handling section (1) is divided into a first air outlet path and a second air outlet path by setting an outlet. The secondary rotary air treatment section (2) is located on the first air outlet path of the primary rotary air treatment section (1); the regenerated air treatment section (3) is located on the second air outlet path of the primary rotary air treatment section (1); The first-stage rotary air treatment section (1) and the second-stage rotary air treatment section (2) are respectively connected to the direct expansion cryogenic section (4); the regenerated air treatment section (3) is respectively connected to the first regenerated heat pump section (5) and the second regenerated heat pump section (6); the second regenerated heat pump section (6) is also connected to the first-stage rotary air treatment section (1).

2. The dual rotary dehumidification system integrated with direct expansion cryogenics and heat pump regeneration of claim 1, wherein, The primary rotor processing section (1) is provided with a primary filter (11), a front surface cooler (12), a primary rotor processing area (13), and a processing fan (14) in sequence along the wind direction.

3. The dual rotary dehumidification system integrated with direct expansion cryogenics and heat pump regeneration of claim 2, wherein, The secondary rotor processing section (2) is provided with a secondary rotor processing area (21) and a medium-efficiency filter (22) in sequence along the wind direction.

4. The dual rotary dehumidification system integrated with direct expansion cryogenics and heat pump regeneration of claim 3, wherein, The direct expansion cryogenic section (4) includes: a direct expansion evaporator (41), a direct expansion compressor (42), a first solenoid valve (43), a second solenoid valve (44), a direct expansion air-cooled condenser (45), a direct expansion water-cooled condenser (46), and a direct expansion throttling element (47); The direct expansion evaporator (41) is located between the front surface cooler (12) and the processing area (13) of the first-stage rotor; the direct expansion air-cooled condenser (45) is located between the processing area (21) of the second-stage rotor and the medium-efficiency filter (22); the direct expansion evaporator (41) is connected to the direct expansion compressor (42) and the direct expansion throttling element (47) respectively; the direct expansion compressor (42) is connected to one end of the first solenoid valve (43) and one end of the second solenoid valve (44) respectively; the direct expansion water-cooled condenser (46) is connected to the direct expansion throttling element (47), the other end of the second solenoid valve (44) and the direct expansion air-cooled condenser (45) respectively; the direct expansion air-cooled condenser (45) is also connected to the other end of the first solenoid valve (43); the direct expansion water-cooled condenser (46) is also provided with a direct expansion regulating water valve (461).

5. The dual rotary dehumidification system integrated with direct expansion cryogenics and heat pump regeneration of claim 3, wherein, The regeneration air treatment section (3) is provided with the third zone (31) of the second rotor, the first regulating air valve (32), the first regeneration heater (33), the regeneration zone (34) of the second rotor, the second regeneration fan (35), the second regeneration heater (36), the regeneration zone (37) of the first rotor, and the first regeneration fan (38) in sequence along the wind direction; a regeneration air inlet (39) is provided between the second regeneration fan (35) and the second regeneration heater (36).

6. The dual rotary dehumidification system integrated with direct expansion cryogenics and heat pump regeneration of claim 5, wherein, The second regenerative heat pump section (6) comprises a second regenerative heat pump compressor (61), a second regenerative heat pump condenser (62), a second regenerative heat pump throttling element (63), and a second regenerative heat pump evaporator (64). The second regenerative heat pump condenser (62) is arranged between the first regulating air valve (32) and the first regenerative heater (33); the second regenerative heat pump evaporator (64) is arranged between the treatment air fan (14) and the outlet; the second regenerative heat pump compressor (61) is connected with the second regenerative heat pump condenser (62) and the second regenerative heat pump evaporator (64) respectively; and the second regenerative heat pump throttling element (63) is connected with the second regenerative heat pump condenser (62) and the second regenerative heat pump evaporator (64) respectively.

7. The dual rotary dehumidification system integrated with direct expansion cryogenics and heat pump regeneration of claim 5, wherein, The first regenerative heat pump section (5) comprises a first regenerative heat pump compressor (51), a first regenerative heat pump condenser (52), a first regenerative heat pump throttling element (53), and a first regenerative heat pump evaporator (54). The first regenerative heat pump condenser (52) is arranged between the second regenerative heater (36) and the regenerative air inlet (39); the first regenerative heat pump evaporator (54) is arranged between the regenerative zone (37) of the first rotating wheel and the first regenerative air fan (38); the first regenerative heat pump compressor (51) is connected with the first regenerative heat pump condenser (52) and the first regenerative heat pump evaporator (54) respectively; and the first regenerative heat pump throttling element (53) is connected with the first regenerative heat pump condenser (52) and the first regenerative heat pump evaporator (54) respectively.

8. The dual rotary dehumidification system integrated with direct expansion cryogenics and heat pump regeneration of claim 7, wherein, The regenerative air treatment air section (3) is further connected with a bypass air section (7); a bypass air inlet is arranged between the first regenerative heat pump evaporator (54) and the regenerative zone (37) of the first rotating wheel, one end of the bypass air section (7) is in communication with the bypass air inlet; a bypass air outlet is arranged on the air outlet path of the first regenerative air fan (38), the other end of the bypass air section (7) is in communication with the bypass air outlet; and a second regulating air valve (71) is arranged on the bypass air section (7).

9. The dual rotary dehumidification system integrated with direct-expansion cryogenics and heat pump regeneration of claim 2, wherein, The front surface air cooler (12) is provided with a front surface air cooler regulating water valve (121).

10. A twin rotary dehumidifier characterized by The integrated dual-rotor dehumidification system with direct expansion cryogenic and heat pump regeneration comprises the integrated dual-rotor dehumidification system with direct expansion cryogenic and heat pump regeneration according to any one of claims 1 to 9.

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