Novel dehumidification and temperature control system for automatic three-dimensional warehouse

Abstract

The utility model discloses a novel dehumidification temperature control system for an automatic three-dimensional warehouse. The novel dehumidification temperature control system comprises an air conditioning unit arranged in a machine room, a fresh air pipeline, an air supply pipeline and an air return pipeline, wherein the fresh air pipeline, the air supply pipeline and the air return pipeline are communicated with the air conditioning unit; the air conditioning unit comprises a fresh air filtering section, a fresh air pre-cooling section, a first mixing section, a direct-expansion total heat recovery section, a second mixing section and an air supply section which are communicated in sequence, the air conditioning unit further comprises a bypass section parallel to the direct-expansion total heat recovery section, air coming out of the first mixing section is divided into two paths, one path enters the direct-expansion total heat recovery section, and the other path enters the bypass section. The direct-expansion total heat recovery section has a good dehumidification effect, the direct-expansion total heat recovery section and the bypass section are arranged in parallel, the dehumidification effect of the three-dimensional warehouse can be guaranteed, and energy consumption can be remarkably reduced.

Description

Technical Field

[0001] The utility model relates to a dehumidification and temperature control system for a stereoscopic warehouse, in particular to a dehumidification and temperature control system for an automated stereoscopic warehouse. Background Art

[0002] Most electronic products and medicines are stored in automated high-rise warehouses, which often have high requirements for temperature and humidity control. Due to the large storage volume and high value of electronic products and medicines, in order to avoid air conditioning water pipes directly entering the room, most electronic products and medicine warehouses use centralized air supply. In the summer (including the rainy season) with high humidity, cooling and dehumidification are generally used for temperature and humidity control in the warehouse. In order to ensure the humidity requirements in the warehouse in summer and the rainy season, the existing centralized air supply air conditioning system will take the following measures:

[0003] The first solution is to add a reheating system on the basis of cooling and dehumidification. The circulating air is cooled and dehumidified and then heated by electricity or hot water or steam before being sent to the room to meet the indoor temperature and humidity requirements. This treatment method can basically meet the indoor temperature and humidity control, but the addition of the reheating function consumes a lot of system energy.

[0004] The second is to add a dehumidifier on the basis of cooling and dehumidification, that is, to install multiple high-power dehumidifiers in the warehouse, use the dehumidifiers to control the humidity in the warehouse, and the centralized air supply only participates in controlling the temperature in the warehouse. This centralized air supply + dehumidifier is a more commonly used three-dimensional warehouse air conditioning system, but due to the large power and large number of dehumidifiers, the investment cost and energy consumption of the system have been increased to a certain extent; in addition, the space in the warehouse itself is very tight, resulting in a very limited installation location for the dehumidifier. The scattered layout of the dehumidifier will not only lead to uneven humidity in the warehouse, but also increase the difficulty of later operation and maintenance; furthermore, the installation of a dehumidifier in the warehouse requires the burying of a condensation drainage pipe in the warehouse, which is difficult to construct and increases the project investment to a certain extent. Summary of the invention

[0005] In view of this, the utility model proposes a novel dehumidification and temperature control system for an automated stereoscopic warehouse.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model discloses a novel dehumidification and temperature control system for an automated stereoscopic warehouse, the novel dehumidification and temperature control system comprises an air conditioning unit arranged in a machine room, a fresh air duct, an air supply duct and an air return duct connected to the air conditioning unit; the air conditioning unit comprises a fresh air filtering section, a fresh air precooling section, a first mixing section, a direct-to-Peng full heat recovery section, a second mixing section and an air supply section connected in sequence, the air conditioning unit also comprises a bypass section parallel to the direct-to-Peng full heat recovery section, so that the air coming out of the first mixing section is divided into two paths, one path enters the direct-to-Peng full heat recovery section and the other path enters the bypass section;

[0008] The Zhipeng full heat recovery section has a full heat recovery chamber, in which a Zhipeng evaporator, a booster fan and a refrigeration system for heat exchange with high-humidity air are arranged, and the refrigeration system includes a circulation loop formed by a compressor, a condenser, a throttle valve and a refrigerant channel of the Zhipeng evaporator connected in sequence through pipes. The Zhipeng full heat recovery section of the utility model uses refrigerant to dry the mixed air, and then controls the humidity of the premixed gas to meet the temperature control requirements of the stereoscopic warehouse; the Zhipeng full heat recovery section of the utility model can effectively take into account the dehumidification requirements of the rainy season (low temperature and high humidity environment) through heat recovery;

[0009] The humidification section has a humidifier; the fresh air precooling section has a surface cooler; the mixed surface cooling and heating section has a heat exchanger; the air supply section has an air supply fan, the air supply pipeline has an air supply main pipe connected to the air outlet of the air supply fan and a plurality of air supply branches arranged in the three-dimensional warehouse, each of the air supply branches is provided with a plurality of air outlets, and the air outlets are located above the three-dimensional warehouse;

[0010] The fresh air filtering section has a fresh air inlet and a filter, and the fresh air duct is connected to the fresh air inlet; the first mixing section has a first return air outlet, and the return air duct has a return air main pipe connected to the first return air outlet and a plurality of return air branch pipes arranged in the three-dimensional warehouse, the return air branch pipes are arranged vertically, and the height difference between the second return air outlet at the bottom of the return air branch pipe and the ground of the three-dimensional warehouse is ≤0.3m.

[0011] In order to ensure the dehumidification effect of the room, the existing technology generally does not have a chilled water supply temperature higher than 7°C, and sometimes even requires a low-temperature water supply of 5°C. Compared with the existing technology, the direct heat recovery section and the bypass section of the utility model are arranged in parallel, and the premixed gas part and the dry part can be sent to the second mixing section through the bypass section, and the premixed gas and the dry gas are mixed, which can fully realize the independent control of temperature and humidity. For summer and transition seasons, the direct heat recovery section in the air-conditioning unit completely controls the indoor humidity, and the subsequent mixed surface cooling and heating section controls the indoor temperature in summer. The mixed surface cooling and heating section only bears the sensible heat load of the room, so the chilled water supply temperature of the mixed surface cooling and heating section in summer and transition seasons can be increased to about 12~15°C. However, if the chilled water supply temperature is increased by 1°C under other conditions unchanged, the energy efficiency of the refrigeration system will increase by about 4%, so the energy efficiency of the corresponding refrigeration system can be increased by about 20%~40%, and the corresponding minimum energy consumption of the system can be reduced by about 15%. The utility model has good dehumidification effect and can significantly reduce the energy consumption of the system, and has important promotion value. In addition, in the dry winter, dehumidification treatment is generally not required, and all premixed air can be sent directly to the second mixing section through the bypass section, which can reduce the resistance of the entire system and further reduce the energy consumption of the system fan.

[0012] Compared with the existing centralized air supply + reheating system, the utility model does not require secondary heating. For the three-dimensional warehouse, the summer wet load generally accounts for more than 30%, and even reaches more than 80% in the transition season. The use of this system can eliminate the cold and heat offset. This part alone can reduce the system energy consumption by about 20%, and the dew point of the treated wind is lower, which makes it easier to achieve large temperature difference air supply, and can fully realize independent control of temperature and humidity. By increasing the summer chilled water supply temperature of the mixing table cooling and heating section, the corresponding system energy consumption is reduced by about 15%; therefore, compared with the existing centralized air supply + reheating system, the system energy consumption can be reduced by about 35%, and the one-time investment of the project can also be reduced.

[0013] Compared with the existing centralized air supply + indoor dehumidification, the utility model installs the dehumidifier in front of the air supply fan, which can reduce system investment, solve the problem of large number of existing mobile dehumidifiers and occupying space in the warehouse, and solve the problem of uneven air supply of dehumidifiers, making the temperature and humidity in the warehouse more uniform and ensuring product quality. The utility model can fully realize independent control of temperature and humidity. The system reduces energy consumption by about 15% by increasing the summer chilled water supply temperature of the mixed table cooling and heating section.

[0014] Preferably, a fresh air inlet is provided on the side wall of the machine room, one end of the fresh air duct is connected to the fresh air inlet and one end thereof is connected to the fresh air inlet of the fresh air filter section, and a fire damper and an air control valve are provided on the fresh air duct. In actual operation, the external fresh air enters the fresh air filter section through the fresh air inlet and the fresh air duct, and the fresh air is filtered by the filter in the fresh air filter section. In actual installation, the filter in the fresh air filter section can be a bag filter or a plate filter.

[0015] Preferably, the air supply pipe, air supply branch pipe, return air pipe, return air branch pipe and fresh air pipe are all galvanized steel pipes, and the air supply pipe, air supply branch pipe, return air pipe, return air branch pipe and fresh air pipe are all covered with an insulation layer. The air supply pipe, return air pipe and fresh air pipe of the utility model are all galvanized steel pipes, which are easy to install.

[0016] Preferably, the fresh air inlet and each of the second return air outlets are provided with protective shutters. Installing protective shutters at the fresh air inlet not only has a rainproof effect, but also can prevent outdoor leaves and other impurities from entering the fresh air duct; the protective shutters at the second return air outlet are preferably single-layer shutters.

[0017] Preferably, the total heat recovery chamber has an air inlet door and an air outlet door, and both the air inlet door and the air outlet door are electric doors. When dehumidification is not required, the two electric doors are automatically closed, so that the mixed gas directly enters the second mixing section through the bypass section, thereby reducing operating energy consumption; in addition, the two doors are convenient for the inspection and daily maintenance of the equipment in the direct heat recovery section.

[0018] Preferably, the air conditioning unit further comprises a mixing surface cooling and heating section and a humidifying section arranged between the second mixing section and the air supply section, the mixing surface cooling and heating section is provided with a heat exchanger, and the humidifying section is provided with a humidifier. In winter, due to the low outside air temperature, the surface cooling and heating section and the humidifying section can be used to properly heat the fresh air to meet the storage needs of the stereoscopic warehouse in winter.

[0019] In order to ensure the dehumidification effect of the room, the existing technology generally does not have a chilled water supply temperature higher than 7°C, and sometimes even requires a low-temperature water supply of 5°C. Compared with the existing technology, the direct heat recovery section and the bypass section of the utility model are arranged in parallel, and the premixed gas part and the dry part can be sent to the second mixing section through the bypass section, and the premixed gas and the dry gas are mixed, which can fully realize the independent control of temperature and humidity. For summer and transition seasons, the direct heat recovery section in the air-conditioning unit completely controls the indoor humidity, and the subsequent mixed surface cooling and heating section controls the indoor temperature in summer. The mixed surface cooling and heating section only bears the sensible heat load of the room, so the chilled water supply temperature of the mixed surface cooling and heating section in summer and transition seasons can be increased to about 12~15°C. However, if the chilled water supply temperature is increased by 1°C under other conditions unchanged, the energy efficiency of the refrigeration system will increase by about 4%, so the energy efficiency of the corresponding refrigeration system can be increased by about 20%~40%, and the corresponding minimum energy consumption of the system can be reduced by about 15%. The utility model has good dehumidification effect and can significantly reduce the energy consumption of the system, and has important promotion value. In addition, in the dry winter, dehumidification treatment is generally not required, and all premixed air can be directly sent to the second mixing section through the bypass section, which can reduce the resistance of the system and further reduce the energy consumption of the system fan.

[0020] Compared with the existing centralized air supply + reheating system, the utility model does not require secondary heating. For the three-dimensional warehouse, the summer wet load generally accounts for more than 30%, and even reaches more than 80% in the transition season. The use of this system can eliminate the cold and heat offset. This part alone can reduce the system energy consumption by about 20%, and the dew point of the treated wind is lower, which makes it easier to achieve large temperature difference air supply, and can fully realize independent control of temperature and humidity. By increasing the summer chilled water supply temperature of the mixing table cooling and heating section, the corresponding system energy consumption is reduced by about 15%; therefore, compared with the existing centralized air supply + reheating system, the system energy consumption can be reduced by about 35%, and the one-time investment of the project can also be reduced.

[0021] Compared with the existing centralized air supply + indoor dehumidification, the utility model installs the dehumidifier in front of the air supply fan, which can reduce system investment, solve the problem of large number of existing mobile dehumidifiers and occupying space in the warehouse, and solve the problem of uneven air supply of dehumidifiers, making the temperature and humidity in the warehouse more uniform and ensuring product quality. The utility model can fully realize independent control of temperature and humidity. The system reduces energy consumption by about 15% by increasing the summer chilled water supply temperature of the mixed table cooling and heating section. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 It is a schematic diagram of the utility model without the three-dimensional library.

[0024] Figure 3yes Figure 2 An enlarged view of the heat recovery section of the Zhongzhi Pengquan.

[0025] Figure 4 It is a working principle diagram of the direct-flow full heat recovery section of the utility model.

[0026] Figure 5 It is a schematic diagram of the layout of the air supply pipeline described in the utility model. DETAILED DESCRIPTION

[0027] The following is a detailed description of an embodiment of the utility model in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0028] It should be noted that, in the description of the present utility model, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] like Figure 1-5 As shown, the new dehumidification and temperature control system for automated stereoscopic warehouse described in the utility model includes an air conditioning unit arranged in a machine room 1, a fresh air pipeline 13, a supply air pipeline and a return air pipeline connected to the air conditioning unit, and the air conditioning unit includes a fresh air filter section 2, a fresh air precooling section 3, a first mixing section 4, a direct Peng full heat recovery section 5, a second mixing section 6, a mixed surface cooling and heating section 7, a humidification section 8 and a supply air section 9 connected in sequence; the fresh air filter section 2 has a fresh air inlet and a filter 2a, which filters the fresh air entering the fresh air transition section. In actual installation, the filter 2a can be a bag filter 2a or a plate filter 2a.

[0031] The fresh air precooling section 3 is provided with a surface cooler 3a (the surface cooler 3a adopts a fin surface cooler 3a with a large heat exchange area and a small volume). In summer, the surface cooler 3a can be used to precool the filtered fresh air to reduce the fresh air temperature. Among them, the surface cooler 3a adopts the chilled water (temperature is 7°C) provided by the single refrigeration station or the project centralized refrigeration station. The fresh air precooling section 3 can precool and dehumidify the filtered fresh air, reducing the load and operating energy consumption of the direct heat recovery section 5; the first mixing section 4 has a first mixing chamber to fully mix the return air and the precooled fresh air.

[0032] The Zhipeng full heat recovery section 5 has a full heat recovery chamber, in which a Zhipeng evaporator 5a, a booster fan 5b and a refrigeration system for heat exchange with high humidity air are arranged. The refrigeration system includes a circulation loop formed by connecting the compressor 5c, the condenser 5d, the throttle valve 5e and the refrigerant channel of the Zhipeng evaporator 5a in sequence through pipelines. The high humidity air enters the Zhipeng evaporator 5a and exchanges heat with the circulation loop to obtain air with a lower dew point. The air with a lower dew point enters another channel of the condenser 5d, absorbs the waste heat of the condenser 5d, and is pressurized by the booster fan 5b and sent to the second mixing section 6. In the utility model, the Zhipeng full heat recovery section 5 adopts direct evaporation of the refrigerant. The cooling system operates independently and is not affected by the temperature of the freezing water in the refrigeration station, so that dry air with a lower dew point temperature can be obtained. The low-humidity and low-temperature air treated by direct evaporation can enter another channel of the condenser 5d, taking away the exhaust heat of the refrigeration system, reducing the energy consumption of the refrigeration system through full heat recovery, and effectively taking into account the dehumidification needs of the rainy season (low-temperature and high-humidity environment) through heat recovery; the booster fan 5b (preferably a low-noise centrifugal fan) can pressurize the low-temperature and low-humidity air coming out of the second channel of the condenser 5d and send it to the second mixing section 6 to ensure the dehumidification effect.

[0033] Combination Figure 2 It can be seen that the air conditioning unit also includes a bypass section 10 (i.e., a bypass chamber) parallel to the direct-to-Peng full heat recovery section 5, so that the mixed air coming out of the first mixing section 4 is divided into two paths, the first path enters the direct-to-Peng full heat recovery section 5, and enters the second mixing section 6 through the direct-to-Peng full heat recovery section 5; the other path enters the bypass section 10, and enters the second mixing section 6 through the bypass section 10. The design of the bypass section 10 allows a part of the pre-mixed air to enter the second mixing section 6 after passing through the bypass section 10, and the other part of the air enters the second mixing section 6 after being cooled and dehumidified by the direct-to-Peng full heat recovery section 5. Directly mixing the treated low-temperature and low-humidity air with the air coming from the bypass section 10 can meet actual needs, effectively reducing the operating energy consumption of the direct-to-Peng full heat recovery section 5; in addition, in the dry and cold winter, the direct-to-Peng full heat recovery section 5 can be directly closed to further reduce energy consumption.

[0034] Combination Figure 2It can be seen that the mixed surface cooling and heating section 7 has a heat exchanger 7a (preferably a water-air heat exchanger 7a). In summer, the water used by the heat exchanger 7a adopts the chilled water (temperature of 12-15°C) provided by the single refrigeration station or the project centralized freezing station to meet the cooling demand in the warehouse; in winter, the water channel of the heat exchanger 7a is connected to hot water at a temperature of 60°C or below to meet the storage temperature demand in the warehouse in winter. In actual installation, the coil of the heat exchanger 7a adopts a fin tube with a large heat exchange area, thereby reducing the volume of the heat exchanger 7a. The mixed surface cooling section of the utility model can cool down the low-temperature and low-humidity air after the second mixing again in summer. In winter, due to the low external environment temperature, the mixed surface cooling and heating section can appropriately heat up the air after the second mixing, so that the temperature in the warehouse is always within the required range.

[0035] Combination Figure 2 It can be seen that the rear side of the mixed surface cooling and heating section 7 is provided with a humidifying section 8, in which a humidifier 8a is installed (the humidifier 8a is a steam humidifier 8a, an electrode humidifier 8a, an ultrasonic humidifier 8a, a spray humidifier 8a or a wet film humidifier 8a, etc.). In actual operation, when the humidity of the air coming out of the mixed surface cooling section is too low, the humidifier 8a can be used to properly humidify the air to meet the temperature and humidity requirements of the stereoscopic warehouse F.

[0036] Combination Figure 1-2 and Figure 5 It can be seen that a fresh air inlet is arranged on the side wall of the machine room 1, one end of the fresh air duct 13 is connected to the fresh air inlet and the other end is connected to the fresh air inlet of the fresh air filter section 2, and the external fresh air enters the fresh air filter section 2 through the fresh air inlet and the fresh air duct 13; the air supply section 9 has an air supply fan 9a (a centrifugal fan is adopted), and the air supply duct has an air supply main pipe 12a connected to the air outlet of the air supply fan 9a and a plurality of air supply branch pipes 12b arranged in the stereoscopic warehouse F, each of the air supply branch pipes 12b is provided with a plurality of air outlets 12c, and the air outlets 12c are located above the stereoscopic warehouse F; the air outlet adopts a swirl air outlet, and for a system that only needs to work in summer, an ordinary swirl air outlet can be selected; for the stereoscopic warehouse F that works all year round, the swirl air outlet is preferably a temperature-controlled swirl air outlet with adjustable angle to meet the temperature control requirements of the stereoscopic warehouse F all year round;

[0037] The top of the first mixing section 4 is provided with a first return air port, and the return air duct has a return air main pipe 11a connected to the first return air port and a plurality of return air branch pipes 11b arranged in the three-dimensional warehouse F. The return air branch pipes 11b are arranged vertically, and the height difference between the second return air port 11c at the bottom of the return air branch pipe 11b and the ground of the three-dimensional warehouse F is ≤0.3m. The utility model adopts the method of upper air supply and lower air return, which effectively ensures uniform temperature in the warehouse and reduces the temperature gradient in the warehouse.

[0038] During actual installation, the air supply main 12a and each air supply branch 12b, the return air main 11a and each return air branch 11b are all provided with air control valves and fire dampers, and the fresh air duct 13 is also provided with fire dampers and air control valves to meet actual needs. During actual installation, the air supply main 12a, the air supply branch 12b, the return air main 11a, the return air branch 11b and the fresh air duct 13 are all made of galvanized steel pipes for easy installation; the air supply main 12a, the air supply branch 12b, the return air main 11a, the return air branch 11b and the fresh air duct 13 are all covered with a thermal insulation layer to ensure the thermal insulation performance of each air duct and further reduce the operating energy consumption of the system.

[0039] During actual installation, the fresh air inlet is provided with protective louvers (i.e., rainproof louvers), which not only have a rainproof effect, but also can prevent impurities such as outdoor leaves from entering the fresh air duct 13; the second return air outlet 11c at the bottom of the second return air branch pipe 11b is also provided with protective louvers (using single-layer louvers), which have a better protective effect.

[0040] Combination Figure 2-3 It can be seen that the full heat recovery chamber has an air inlet door and an air outlet door. The air inlet door corresponds to the first mixing section 4, and the air outlet door corresponds to the second mixing section 6. The air outlet door and the air inlet door are not only convenient for inspection and daily maintenance; in addition, when dehumidification is not required (such as in the dry winter), the air inlet door and the air outlet door can be closed, so that the pre-mixed gas can enter the second mixing section 6 through the bypass section 10, further reducing the operating energy consumption; the first mixing section 4 and the second mixing section 6 are respectively provided with inspection doors to facilitate later inspection and maintenance. Among them, in actual installation, the air inlet door and the air outlet door of the full heat recovery chamber are both electric doors.

[0041] In summer or alternate seasons (such as the transition between spring and summer and between summer and autumn), the fresh air outside the machine room 1 enters the fresh air filter section 2 through the fresh air pipeline 13, enters the fresh air pre-cooling section 3 after filtering for cooling and preliminary dehumidification, and then is diverted through the first mixing section 4, so that part of the air enters the direct-flow full heat recovery section 5 for cooling and dehumidification, and the other part of the air enters the second mixing section 6 through the bypass section 10. The bypass air and the low-temperature and low-humidity air treated by the direct-flow full heat recovery section 5 are mixed in the second mixing section 6. The mixed air enters the air supply fan 9a after passing through the mixing surface cooling and heating section 7, and the air supply fan 9a sends the air into the three-dimensional warehouse F. Among them, if the temperature of the air coming out of the second mixing section 6 can meet the cooling demand of the three-dimensional warehouse F, the heat exchanger 7a of the mixing surface cooling and heating section 7 does not work. If the temperature of the air coming out of the second mixing section 6 is still high, the heat exchanger 7a of the mixing surface cooling and heating section 7 can be used to cool it again to meet the cooling demand of the three-dimensional warehouse F.

[0042] In winter, the external environment temperature is low and the air is relatively dry, so the temperature inside the three-dimensional warehouse F is also relatively low. For storage items with high temperature and humidity requirements, hot air of a certain temperature is usually required in winter. In order to meet the temperature requirements of the three-dimensional warehouse F, the hybrid surface cooling and heating section 7 and the humidification section 8 of the utility model can be used to process the fresh air and the return air. The specific process of the utility model in winter is as follows:

[0043] The external fresh air first enters the fresh air filtering section 2 for filtration and then enters the first mixing section 4 through the fresh air pre-cooling section 3 (the surface cooler 3a of the fresh air pre-cooling section 3 is not working). The fresh air is mixed with the return air entering the first mixing section 4 and then directly enters the second mixing section 6 through the bypass section 10. Then, it enters the mixed surface cooling and heating section 7. The filtered air is heated by the heat exchanger 7a. The heated air enters the humidifying section 8 (the humidifier 8a in the humidifying section 8 can work flexibly according to the humidity of the heated air. If humidification is required, it will be turned on, and if not, it will not be turned on). Finally, it is sent to the stereoscopic warehouse F through the air supply fan 9a to meet the needs of the stereoscopic warehouse F which has strict requirements on storage temperature.

[0044] The utility model arranges the direct-flow full heat recovery section 5 and the bypass section 10 in parallel, and can send the dry part of the premixed gas to the second mixing section 6 through the bypass section 10, so as to mix the premixed gas and the dry gas and reduce the energy consumption of the system operation; in addition, in the dry winter, dehumidification treatment is generally not required, and all the premixed air can be directly sent to the second mixing section 6 through the bypass section 10, and appropriately heated by the heat exchanger 7a in the mixing surface cooling and heating section 7.

[0045] Compared with the existing centralized air supply + reheating system, the utility model does not require secondary heating, can effectively reduce energy consumption, and the dew point of the treated air is lower, which makes it easier to achieve large temperature difference air supply; compared with the existing centralized air supply + indoor dehumidification, the utility model installs the dehumidifier on the front side of the air supply fan 9a, on the one hand, it can reduce the system investment, and can also solve the problem of the large number of existing mobile dehumidifiers and the space occupied in the warehouse. On the other hand, it also solves the problem of uneven air supply of the dehumidifier, making the temperature and humidity in the warehouse more uniform, ensuring product quality.

[0046] Finally, it should be emphasized that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Therefore, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A new dehumidification and temperature control system for an automated stereoscopic warehouse, the new dehumidification and temperature control system comprising an air conditioning unit arranged in a machine room, a fresh air pipeline, an air supply pipeline and a return air pipeline connected to the air conditioning unit; Features: The air conditioning unit comprises a fresh air filtering section, a fresh air precooling section, a first mixing section, a direct-to-Peng full heat recovery section, a second mixing section and an air supply section which are connected in sequence, and the air conditioning unit also comprises a bypass section which is parallel to the direct-to-Peng full heat recovery section, so that the air coming out of the first mixing section is divided into two paths, one path enters the direct-to-Peng full heat recovery section and the other path enters the bypass section; The Zhipeng full heat recovery section has a full heat recovery chamber, in which a Zhipeng evaporator, a booster fan and a refrigeration system for heat exchange with high-humidity air are arranged, and the refrigeration system includes a circulation loop formed by connecting the compressor, the condenser, the throttle valve and the refrigerant channel of the Zhipeng evaporator in sequence through pipelines; The fresh air precooling section and the fresh air filtering section have a filter, and the fresh air precooling section has a surface cooler; the air supply section has an air supply fan, and the air supply pipeline has an air supply main pipe connected to the air outlet of the air supply fan and a plurality of air supply branches arranged in the three-dimensional warehouse, each of the air supply branches is provided with a plurality of air outlets, and the air outlets are located above the three-dimensional warehouse; The fresh air filtering section has a fresh air inlet and a filter, and the fresh air duct is connected to the fresh air inlet; the first mixing section has a first return air outlet, and the return air duct has a return air main pipe connected to the first return air outlet and a plurality of return air branch pipes arranged in the three-dimensional warehouse, the return air branch pipes are arranged vertically, and the height difference between the second return air outlet at the bottom of the return air branch pipe and the ground of the three-dimensional warehouse is ≤0.3m.

2. According to claim 1, the new dehumidification and temperature control system for automated stereoscopic warehouse, Features: A fresh air inlet is arranged on the side wall of the machine room, one end of the fresh air pipeline is connected with the fresh air inlet and the other end is connected with the fresh air inlet of the fresh air filter section, and a fire damper and an air control valve are arranged on the fresh air pipeline.

3. The new dehumidification and temperature control system for automated stereoscopic warehouse according to claim 2, Features: The air supply main pipe, air supply branch pipe, return air main pipe, return air branch pipe and fresh air pipeline are all galvanized steel pipes, and the air supply main pipe, air supply branch pipe, return air main pipe, return air branch pipe and fresh air pipeline are all covered with an insulation layer.

4. The new dehumidification and temperature control system for an automated three-dimensional warehouse according to claim 2, Features: The fresh air inlet and each of the second return air outlets are provided with protective shutters.

5. According to claim 1, the new dehumidification and temperature control system for automated stereoscopic warehouse, Features: The total heat recovery chamber has an air inlet door and an air outlet door, and both the air inlet door and the air outlet door are electric doors.

6. The new dehumidification and temperature control system for automated stereoscopic warehouse according to claim 1, Features: The air conditioning unit further comprises a mixing surface cooling and heating section and a humidifying section arranged between the second mixing section and the air supply section. The mixing surface cooling and heating section is provided with a heat exchanger, and the humidifying section is provided with a humidifier.

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