Integrated dehumidification air-conditioning ventilation system for multi-storey storeroom

Abstract

The integrated dehumidification air-conditioning ventilation system comprises a dehumidification air-conditioning unit, an air supply main vertical pipe and an air return main vertical pipe, wherein the dehumidification air-conditioning unit is arranged on the roof of the multi-storey storehouse; the air supply main vertical pipe and the air return main vertical pipe are arranged in the multi-storey storehouse in a penetrating manner; a first electric fresh air valve is arranged on a first fresh air pipe of the dehumidification air conditioning unit, and an air supply pipe is connected with an air supply main vertical pipe; the main air supply vertical pipe is provided with air supply branch pipes communicated with all the storerooms, each storeroom is internally provided with an air return branch pipe, a temperature sensor and a humidity sensor, each air supply branch pipe is provided with an air supply electric air valve and an air supply outlet, each air return branch pipe is provided with an air return inlet and an air return electric air valve, and the other end of each air return branch pipe is connected with the main air return vertical pipe. The device is simple in structure, convenient to use, low in initial investment and high in automation degree, the operation content of workers is simplified, and the purposes of saving energy and reducing consumption are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial air conditioning, in particular to an integrated dehumidification air conditioning and ventilation system for multi-storey warehouses. Background Art

[0002] The layout of each floor of the multi-storey warehouse used to store raw materials, auxiliary materials and industrial finished products for industrial production is basically the same. Many raw materials, auxiliary materials and finished products require the warehouse to have a good air conditioning (dehumidification) and ventilation environment to prevent the stored items from getting moldy and deteriorating. The traditional solution is to design independent air conditioning (dehumidification) and ventilation systems in each floor of the warehouse, and the relevant equipment and pipeline systems are independently set up, which requires a large investment. Secondly, the air conditioning and dehumidification loads of multi-storey warehouses are relatively small, and each floor of the warehouse is not fully stocked with goods throughout the year. Some floors may be vacant during certain periods. If each floor is equipped with an independent air conditioning (dehumidification) and ventilation system, the utilization rate is relatively low. Thirdly, if the multi-storey warehouse adopts mechanical ventilation, the exhaust fan will pump the indoor air to the outside, and the management personnel need to enter each floor of the warehouse and open the windows to naturally replenish air to achieve ventilation. After the mechanical ventilation is completed, the management personnel will close the windows of each floor of the warehouse again. The workload of the management personnel in the whole process is relatively large. If the electric window is opened automatically, on the one hand, the cost is high, and on the other hand, the failure rate is high during the use of the electric window, and it is easy for the window to not open or close. Summary of the invention

[0003] In order to solve the above problems, the utility model provides an integrated dehumidification, air conditioning and ventilation system for multi-storey warehouses, which can specifically adopt the following technical solutions:

[0004] The integrated dehumidification, air conditioning and ventilation system for multi-storey warehouses described in the utility model comprises a dehumidification and air conditioning unit arranged on the roof of the multi-storey warehouse and a main supply air riser and a return air main riser arranged throughout the multi-storey warehouse; a first electric fresh air valve is arranged on the first fresh air duct of the dehumidification and air conditioning unit, and the supply air duct of the dehumidification and air conditioning unit is connected to the main supply air riser; the main supply air riser is provided with a supply air branch pipe connected to each warehouse, and a return air branch pipe and a temperature sensor and a humidity sensor are provided in each warehouse; the supply air branch pipe is provided with a supply air electric valve and an air supply port, and the return air branch pipe is provided with a return air port and a return air electric valve, and the other end of the return air branch pipe is connected to the return air main riser; the return air main riser is provided with an exhaust duct and a return air duct connected to the dehumidification and air conditioning unit, and the exhaust duct is provided with an exhaust a dehumidifier and an electric exhaust valve, a first electric air valve and a second electric air valve are arranged on the return air duct, a second fresh air duct is arranged between the first electric air valve and the second electric air valve, and a second electric fresh air valve is arranged on the second fresh air duct; the signal output end of the temperature sensor and the signal output end of the humidity sensor are both electrically connected to the signal input end of the control system, and the control output end of the control system is electrically connected to the control input end of the dehumidification air-conditioning unit, the control input end of the first electric fresh air valve, the control input end of the second electric fresh air valve, the control input end of the first electric air valve, the control input end of the second electric air valve, the control input end of the exhaust fan, the control input end of the electric exhaust valve, the control input end of the supply air electric air valve, and the control input end of the return air electric air valve.

[0005] The air supply branch pipe is arranged at the top of each warehouse, and the air return branch pipe is arranged at the bottom of each warehouse.

[0006] The control system is a PLC control system.

[0007] The utility model provides an integrated dehumidification, air conditioning and ventilation system for multi-storey warehouses, which has a simple structure, is easy to use, has a low initial investment and a high degree of automation. A set of air conditioning (dehumidification) and ventilation equipment is centrally arranged on the roof, which is connected to the warehouses on each floor through a pipeline system. Under the action of the automatic control system, the temperature and humidity of the warehouses on each floor are controlled in a targeted manner, which not only greatly reduces the equipment investment, but also simplifies the work content of the staff, thereby achieving the purpose of energy saving and consumption reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0009] 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 working process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0010] like Figure 1 As shown, the integrated dehumidification, air conditioning and ventilation system for multi-storey warehouses described in the utility model comprises a dehumidification, air conditioning unit 1 arranged on the roof of the multi-storey warehouse and a main supply air riser 2 and a return air main riser 3 arranged throughout the multi-storey warehouse; a first electric fresh air valve 4 is arranged on the first fresh air duct of the dehumidification, air conditioning unit 1, and the supply air duct of the dehumidification, air conditioning unit 1 is connected to the main supply air riser 2; a supply air branch 5 connected to each warehouse is arranged on the main supply air riser 2, and a return air branch 6, a temperature sensor 7 and a humidity sensor 8 are arranged in each warehouse; an electric supply air valve 9 and an air supply port 10 are arranged on the supply air branch 5, a return air port 11 and a return air electric valve 12 are arranged on the return air branch 6, and the other end of the return air branch 6 is connected to the return air main riser 3; an exhaust duct and a return air duct connected to the dehumidification, air conditioning unit 1 are arranged on the return air main riser 3, and an exhaust duct is arranged on the exhaust duct The fan 13 and the electric exhaust valve 14 are provided with a first electric air valve 15 and a second electric air valve 16 on the return air duct, and a second fresh air duct is provided between the first electric air valve 15 and the second electric air valve 16, and a second electric fresh air valve 17 is provided on the second fresh air duct; the signal output end of the temperature sensor 7 and the signal output end of the humidity sensor 8 are electrically connected to the signal input end of the control system 18, and the control output end of the control system 18 is electrically connected to the control input end of the dehumidification air conditioning unit 1, the control input end of the first electric fresh air valve 4, the control input end of the second electric fresh air valve 17, the control input end of the first electric air valve 15, the control input end of the second electric air valve 16, the control input end of the exhaust fan 13, the control input end of the electric exhaust valve 14, the control input end of the supply air electric air valve 9, and the control input end of the return air electric air valve 12. In order to achieve a good air supply and dehumidification effect. The supply air branch pipe 5 is usually set at the top of each warehouse, and the return air branch pipe 6 is set at the bottom of each warehouse. Preferably, the control system 18 adopts a PLC control system.

[0011] The working principle of the utility model is as follows;

[0012] (1) Central air conditioning (dehumidification) mode

[0013] When air conditioning (dehumidification) is required in the warehouse, the second electric fresh air valve 17 and the electric exhaust valve 14 are closed, and the second electric air valve 16, the first electric air valve 15, the first electric fresh air valve 4, the supply air electric air valve 9, and the return air electric air valve 12 are opened. The air in the warehouse is sucked into the return air branch pipe 6 through the return air port 11 and the return air electric air valve 12, and then enters the dehumidification air conditioning unit 1 through the return air main riser 3, the first electric air valve 15, and the second electric air valve 16, and is mixed with the fresh air that enters the dehumidification air conditioning unit 1 through the first electric fresh air valve 4, and after being cooled, dehumidified, and pressurized by the dehumidification air conditioning unit 1, it is sent to the warehouses on each floor through the supply air main riser 2, and then sent to each warehouse on each floor through the supply air electric air valve 9, the supply air branch pipe 5, and the supply air port 10 on each floor. According to the monitoring values ​​of the humidity sensors 8 and the temperature sensors 7 in each warehouse, the control system 18 automatically adjusts the openings of the second electric air valve 16, the first electric air valve 15, the first electric fresh air valve 4, the supply air electric air valve 9, and the return air electric air valve 12 to ensure that the temperature and humidity in the warehouse meet the standards.

[0014] If some floors have no inventory and are in an idle state, the supply air electric air valve 9 and the return air electric air valve 12 of these floors can be closed, that is, the air conditioning unit is no longer responsible for this floor.

[0015] (2) Centralized fresh air supply and natural exhaust mode

[0016] When the outdoor humidity is low and the temperature is suitable, the fresh air supply and natural exhaust mode can be adopted. Specifically, the first electric air valve 15, the electric exhaust valve 14, and the return air electric air valve 12 are closed, while the first electric fresh air valve 4, the second electric fresh air valve 17, the second electric air valve 16, and the supply air electric air valve 9 are opened.

[0017] After the outdoor fresh air enters the pipeline through the second electric fresh air valve 17 and the second electric air valve 16, it is pressurized by the fan of the dehumidification air-conditioning unit 1 (the compressor is not turned on, only the supply air fan is turned on), and then delivered to each floor of the warehouse through the supply air main riser 2, and then delivered to each warehouse through the supply air electric air valve 9, supply air branch pipe 5, and supply air outlet 10 of each warehouse.

[0018] By opening a small number of external windows on each floor that are far away from the air supply outlets, mechanical air intake and natural exhaust can be achieved.

[0019] If some floors have no inventory and are in an idle state, the air supply electric dampers 9 of these floors can be closed, that is, the air supply system no longer bears the burden of this floor.

[0020] (3) Centralized exhaust and natural air supply mode

[0021] When the outdoor humidity is low and the temperature is suitable, the exhaust fan 13 is directly used for exhaust. Specifically, the first electric air valve 15 and the first electric fresh air valve 4 are closed, the second electric fresh air valve 17, the second electric air valve 16, and the air supply electric air valve 9 are closed, and the return air electric air valve 12 and the electric exhaust valve 14 are opened.

[0022] The dirty air in the warehouse is collected to the return air main riser 3 through the return air inlet 11, the return air electric air valve 12, and the return air branch pipe 6, and then passes through the electric exhaust valve 14, and is pressurized by the exhaust fan 13 before being discharged to the outside.

[0023] By opening the external windows on each floor that are far away from the return air outlet, mechanical air intake and natural exhaust can be achieved.

[0024] If some floors have no inventory and are in an idle state, the return air electric dampers 12 of these floors can be closed, that is, the exhaust system is no longer burdened by these floors.

[0025] (4) Centralized exhaust and mechanical air supply mode

[0026] When the outdoor humidity is low and the temperature is suitable, the centralized exhaust and mechanical air supply modes are used for exhaust and air supply. Specifically, the first electric air valve 15 and the first electric fresh air valve 4 are closed, and the second electric fresh air valve 17, the second electric air valve 16, the air supply electric air valve 9, the return air electric air valve 12, and the electric exhaust valve 14 are opened.

[0027] The dirty air in the warehouse is collected to the return air main riser 3 through the return air inlet 11, the return air electric air valve 12, and the return air branch pipe 6, and then passes through the electric exhaust valve 14, and is pressurized by the exhaust fan 13 before being discharged to the outside.

[0028] The warehouse is supplied with air mechanically, and outdoor fresh air enters the dehumidification air-conditioning unit 1 through the second electric fresh air valve 17 and the second electric air valve 16. The compressor of the dehumidification air-conditioning unit 1 does not run, and only the fan runs. The fresh air is delivered to each floor through the main air supply riser 2, and then delivered to the room through the air supply electric air valve 9, air supply branch pipe 5, and air supply outlet 10 on each floor.

[0029] Indoor air is renewed through mechanical exhaust and mechanical air supply without the need to manually open external windows.

[0030] If some floors have no inventory and are in an idle state, the supply air electric damper 9 and the return air electric damper 12 of these floors can be closed, that is, the air supply system and the exhaust system are no longer burdened by this floor.

[0031] The configuration of the dehumidification air conditioning unit 1 and the exhaust fan 13 is calculated and selected according to the number of warehouses used simultaneously throughout the year, which can reduce the initial investment in the equipment.

[0032] Compared with the traditional decentralized air conditioning system on each floor, the utility model has lower initial investment, higher automation and lower operating cost.

[0033] It should be noted that, in the description of the present invention, terms indicating orientation or positional relationships, such as "front", "rear", "left", "right", "vertical", "horizontal", "inside", "outside", etc., are based on the orientation or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

Claims

1. A multi-storey integrated dehumidification, air conditioning and ventilation system, characterized by: The vents in the air conditioner are connected to the dehumidifier and the fan, and the vents in the air conditioner are connected to the dehumidifier and the fan. A first electric air valve and a second electric air valve are arranged on the pipe, a second fresh air pipe is arranged between the first electric air valve and the second electric air valve, and a second electric fresh air valve is arranged on the second fresh air pipe; the signal output end of the temperature sensor and the signal output end of the humidity sensor are both electrically connected to the signal input end of the control system, and the control output end of the control system is electrically connected to the control input end of the dehumidification air-conditioning unit, the control input end of the first electric fresh air valve, the control input end of the second electric fresh air valve, the control input end of the first electric air valve, the control input end of the second electric air valve, the control input end of the exhaust fan, the control input end of the electric exhaust valve, the control input end of the supply air electric air valve, and the control input end of the return air electric air valve.

2. The multi-storey integrated dehumidification, air conditioning and ventilation system according to claim 1 is characterized in that: The air supply branch pipe is arranged at the top of each warehouse, and the air return branch pipe is arranged at the bottom of each warehouse.

3. The multi-storey integrated dehumidification, air conditioning and ventilation system according to claim 1 is characterized in that: The control system is a PLC control system.

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