A variable frequency air cooler

Abstract

The utility model relates to a cold -air machine technical field, concretely relates to a variable frequency cold -air machine, including air supply component, condensing air exhaust component, refrigeration subassembly and electrical control component, air supply component includes filter, evaporator, air duct, processing fan, air supply outlet and drain, condensing air exhaust component includes condenser and condensing fan, refrigeration subassembly includes compressor, liquid accumulator, drying filter and expansion valve, the compressor of this design is equipped with compressor frequency converter subassembly, realizes wide -range stepless adjustment compressor operating characteristic through frequency conversion speed regulation, reduces system energy consumption under the premise that satisfies the use requirement, simultaneously processing fan and processing fan frequency converter subassembly mutually cooperate and form the speed regulation structure, adjust the resistance characteristic of fan through frequency conversion speed regulation, reduce system energy consumption under the premise that satisfies the use requirement similarly.

Description

Technical Field

[0001] This utility model relates to the field of air cooler technology, and in particular to a variable frequency air cooler. Background Technology

[0002] In the development of evaporative air cooler technology, traditional fixed-frequency evaporative air coolers have demonstrated certain advantages under specific operating conditions. Conventional fixed-frequency evaporative air coolers, in terms of structural design and basic functional implementation, provide a fundamental solution for indoor and outdoor air exchange and temperature regulation.

[0003] Currently, in some locations where temperature control precision requirements are not high, fixed-frequency evaporative air coolers can deliver treated fresh air to different areas through air ducts in a relatively stable operating mode, meeting basic ventilation needs. Their refrigeration system, through the operation of a fixed-frequency compressor, can complete refrigerant circulation, achieving air cooling and creating a relatively comfortable indoor environment. Furthermore, fixed-frequency evaporative air coolers have mature technology and relatively simple manufacturing processes due to long-term application, resulting in lower manufacturing costs and making them competitive in cost-sensitive projects. Moreover, fixed-frequency evaporative air coolers are relatively easy to maintain, as maintenance personnel are highly familiar with their working principles and common faults, which can reduce maintenance costs and downtime to a certain extent.

[0004] However, with the increasing demands on the performance of evaporative air coolers and the growing awareness of energy conservation, existing fixed-frequency evaporative air cooler technology has gradually revealed many problems. On the one hand, conventional units use fixed-frequency compressors, which cannot adjust the loading and unloading of the unit's operating load. On the other hand, the varying lengths of the air supply pipes connected to the unit's air outlets can cause changes in the unit's air volume and air pressure operating points. Utility Model Content

[0005] The purpose of this utility model is to provide a variable frequency evaporative air cooler, which aims to solve the problems that have gradually emerged in the existing fixed frequency evaporative air cooler technology as the performance requirements of evaporative air coolers continue to increase and the awareness of energy conservation is enhanced. On the one hand, conventional units use fixed frequency compressors, which cannot adjust the loading and unloading of the unit's operating load; on the other hand, the varying lengths of the air supply pipes connected to the unit's air outlets cause changes in the unit's air volume and air pressure operating points.

[0006] To achieve the above objectives, this utility model employs a variable frequency air cooler, comprising an air supply assembly, a condensate exhaust assembly, a refrigeration assembly, and an electrical control assembly. The air supply assembly includes a filter, an evaporator, an air duct, a processing fan, an air outlet, and a drain outlet. The condensate exhaust assembly includes a condenser and a condensing fan. The refrigeration assembly includes a compressor, a liquid receiver, a dryer filter, and an expansion valve. The filter is located at the unit inlet. The evaporator is connected to the filter via the air duct. The processing fan is connected to the evaporator via the air duct. The air outlet is connected to the processing fan. The drain outlet is located below the evaporator. The condenser is connected to the compressor via a pipe. The condensing fan is located on one side of the condenser. The liquid receiver is connected to the condenser via a pipe. The compressor is connected to both the evaporator and the condenser via pipes. The dryer filter is connected to the liquid receiver via a pipe. The expansion valve is connected to the dryer filter via a pipe.

[0007] The electrical control components include a centralized control module, a high-voltage sensor, a low-voltage sensor, an ambient temperature sensor, an outlet temperature sensor, and a processing fan inverter assembly. The centralized control module includes a controller and a touch screen all-in-one machine. The controller is connected to the high-voltage sensor, the low-voltage sensor, the ambient temperature sensor, the outlet temperature sensor, and the processing fan inverter assembly via wires. The touch screen all-in-one machine is communicatively connected to the controller.

[0008] The compressor is equipped with a compressor frequency converter assembly, and the compressor is also connected to the controller via wires.

[0009] The compressor inverter assembly is a signal conversion and execution component, and it is connected to the controller via wires.

[0010] The processing fan and the processing fan frequency converter assembly cooperate to form a speed regulation structure.

[0011] This utility model discloses a variable frequency evaporative air cooler, comprising an air supply component, a condensate exhaust component, a refrigeration component, and an electrical control component. The air supply component includes a filter, an evaporator, an air duct, a handling fan, an air outlet, and a drain outlet. The condensate exhaust component includes a condenser and a condenser fan. The refrigeration component includes a compressor, a liquid receiver, a dryer filter, and an expansion valve. The compressor in this design is equipped with a compressor variable frequency drive component, which enables stepless adjustment of the compressor's operating characteristics over a wide range through variable frequency speed regulation, reducing system energy consumption while meeting usage requirements. Simultaneously, the handling fan and the handling fan variable frequency drive component work together to form a speed regulation structure, adjusting the fan resistance characteristics through variable frequency speed regulation, similarly reducing system energy consumption while meeting usage requirements. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional perspective view of the variable frequency air cooler of this utility model.

[0014] Figure 2 This is a schematic diagram of the left side interior of the variable frequency air cooler of this utility model.

[0015] Figure 3 This is a front internal view of the variable frequency air cooler of this utility model.

[0016] Figure 4 This is a schematic diagram of the inside of the variable frequency air cooler of this utility model on the right side.

[0017] Figure 5 This is a top view of the internal structure of the variable frequency air cooler of this utility model.

[0018] 1-Filter, 2-Evaporator, 3-Air duct, 4-Processing fan, 5-Air outlet, 6-Drain outlet, 7-Condenser, 8-Condenser fan, 9-Liquid receiver, 10-Compressor, 11-Drier filter, 12-Expansion valve, 13-Electrical control box, 14-Centralized control module, 14-1-Controller, 14-2-Touch screen all-in-one machine, 15-High pressure sensor, 16-Low pressure sensor, 17-Ambient temperature sensor, 18-Outlet temperature sensor, 19-Processing fan inverter assembly, 20-Compressor inverter assembly, 21-Self-closing louvers. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] Please see Figures 1 to 5This utility model provides a variable frequency evaporative air cooler, including an air supply assembly, a condensate exhaust assembly, a refrigeration assembly, and an electrical control assembly. The air supply assembly includes a filter 1, an evaporator 2, an air duct 3, a handling fan 4, an air outlet 5, and a drain outlet 6. The condensate exhaust assembly includes a condenser 7 and a condenser fan 8. The refrigeration assembly includes a compressor 10, a liquid receiver 9, a dryer filter 11, and an expansion valve 12. The filter 1 is located at the inlet of the unit. The evaporator 2 is connected to the filter 1 through the air duct 3. The handling fan 4... The air duct 3 is connected to the evaporator 2, the air outlet 5 is connected to the processing fan 4, the drain outlet 6 is located below the evaporator 2, the condenser 7 is connected to the compressor 10 through a pipe, the condensing fan 8 is located on one side of the condenser 7, the liquid receiver 9 is connected to the condenser 7 through a pipe, the compressor 10 is connected to the evaporator 2 and the condenser 7 through pipes respectively, the dryer filter 11 is connected to the liquid receiver 9 through a pipe, and the expansion valve 12 is connected to the dryer filter 11 through a pipe.

[0021] In this embodiment, this modular design not only facilitates maintenance and upgrades, but also effectively improves the overall performance and energy efficiency of the evaporative cooler through the coordinated work of its components, meeting the usage needs in different environments.

[0022] Furthermore, the electrical control components include a centralized control module 14, a high-voltage sensor 15, a low-voltage sensor 16, an ambient temperature sensor 17, an outlet temperature sensor 18, and a processing fan inverter assembly 19. The centralized control module 14 includes a controller 14-1 and a touch screen all-in-one machine 14-2. The controller 14-1 is connected to the high-voltage sensor 15, the low-voltage sensor 16, the ambient temperature sensor 17, the outlet temperature sensor 18, and the processing fan inverter assembly 19 via wires. The touch screen all-in-one machine 14-2 is communicatively connected to the controller 14-1.

[0023] In this embodiment, this design enables real-time monitoring and precise control of the air cooler's operating status. The controller 14-1 receives feedback data from the high-pressure sensor 15, the low-pressure sensor 16, the ambient temperature sensor 17, and the outlet temperature sensor 18, which allows for accurate determination of the unit's operating status. The controller can then display and operate the data intuitively through the touchscreen all-in-one machine 14-2, greatly improving the air cooler's intelligence level and the user's ease of operation.

[0024] Furthermore, the compressor 10 is equipped with a compressor inverter assembly 20, and the compressor 10 is also connected to the controller 14-1 via wires.

[0025] In this embodiment, this design enables the compressor 10 to perform variable frequency speed regulation according to actual needs. Compared with the traditional fixed frequency compressor 10, the variable frequency compressor 10 can adjust loading and unloading according to changes in the unit's operating load, thereby effectively reducing energy consumption, improving energy efficiency ratio, and adapting to the usage requirements under different climate and environmental conditions while meeting cooling needs.

[0026] Furthermore, the compressor inverter assembly 20 is a signal conversion and execution component, and the compressor inverter assembly 20 is connected to the controller 14-1 via wires.

[0027] In this embodiment, the compressor 10 speed is precisely controlled by connecting it to the controller 14-1 via a wire. This design not only improves the operating efficiency of the compressor 10, but also further reduces the overall energy consumption of the air cooler by reducing unnecessary energy loss. At the same time, the introduction of the inverter component also enhances the adaptability and stability of the compressor 10, enabling it to operate efficiently under a wider range of operating conditions.

[0028] Furthermore, the processing fan 4 and the processing fan frequency converter assembly 19 cooperate to form a speed regulation structure.

[0029] In this embodiment, by using variable frequency speed control, the processing fan 4 can adjust its speed according to actual needs, thereby maintaining a stable air volume and air pressure output, ensuring the cooling effect of the evaporative cooler in different usage environments. At the same time, this speed control structure also reduces the fan's energy consumption and improves the overall energy efficiency of the evaporative cooler.

[0030] In this invention, ambient air is filtered by filter 1 to remove dust and other impurities, cooled by evaporator 2, flows through duct 3, and is delivered to the process area by processing fan 4 and air outlet 5. When the dew point temperature of the ambient air is higher than that of evaporator 2, moisture in the air condenses and is discharged through drain outlet 6. Meanwhile, the refrigerant in the evaporator 2's piping absorbs the heat released by the cooling of the ambient air, passes through compressor 10, and then releases the heat of the refrigeration system through condenser 7. The heat is then discharged into the ambient air by condenser fan 8. After the refrigerant releases heat through condenser 7, it passes through liquid receiver 9, then through dryer filter 11, and then through expansion valve 12 before entering evaporator 2. This cycle repeats continuously. The touchscreen allows setting the unit's outlet air temperature. The controller 14-1 determines whether the set air temperature has been reached based on feedback data from the high-pressure sensor 15, the low-pressure sensor 16, the ambient temperature sensor 17, and the outlet temperature sensor 18. The controller loads or unloads the unit components through the processing fan inverter assembly 19 and the compressor inverter assembly 20. If the temperature is not reached, the controller adjusts the speed of the processing fan 4 through the processing fan inverter assembly 19 to change the air volume and air pressure. At the same time, the controller adjusts the operating frequency of the compressor 10 through the compressor inverter assembly 20 to achieve precise control of the cooling capacity. This ensures that the unit can operate efficiently and stably under different climate and environmental conditions, meeting the cooling needs of the process site.

[0031] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A variable frequency air cooler, characterized in that, The unit includes an air supply assembly, a condensate exhaust assembly, a refrigeration assembly, and an electrical control assembly. The air supply assembly includes a filter, an evaporator, an air duct, a handling fan, an air outlet, and a drain outlet. The condensate exhaust assembly includes a condenser and a condensing fan. The refrigeration assembly includes a compressor, a liquid receiver, a dryer filter, and an expansion valve. The filter is located at the unit inlet. The evaporator is connected to the filter via an air duct. The handling fan is connected to the evaporator via an air duct. The air outlet is connected to the handling fan. The drain outlet is located below the evaporator. The condenser is connected to the compressor via a pipe. The condensing fan is located on one side of the condenser. The liquid receiver is connected to the condenser via a pipe. The compressor is connected to both the evaporator and the condenser via pipes. The dryer filter is connected to the liquid receiver via a pipe. The expansion valve is connected to the dryer filter via a pipe.

2. The variable frequency air cooler as described in claim 1, characterized in that, The electrical control components include a centralized control module, a high-voltage sensor, a low-voltage sensor, an ambient temperature sensor, an outlet temperature sensor, and a processing fan inverter assembly. The centralized control module includes a controller and a touch screen all-in-one machine. The controller is connected to the high-voltage sensor, the low-voltage sensor, the ambient temperature sensor, the outlet temperature sensor, and the processing fan inverter assembly via wires. The touch screen all-in-one machine is communicatively connected to the controller.

3. The variable frequency air cooler as described in claim 2, characterized in that, The compressor is equipped with a compressor frequency converter assembly, and the compressor is also connected to the controller via wires.

4. The variable frequency air cooler as described in claim 3, characterized in that, The compressor inverter assembly is a signal conversion and execution component, and the compressor inverter assembly is connected to the controller via wires.

5. The variable frequency air cooler as described in claim 4, characterized in that, The processing fan and the processing fan frequency converter assembly work together to form a speed regulation structure.

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