Humidity control system of multi-split air conditioning unit

Abstract

The invention discloses a multi-split air conditioning unit humidity control system which comprises a central processing unit, a humidity control module, a temperature control module, sensor modules and air conditioning units, and the sensor modules are arranged in installation spaces of the multi-split air conditioning units. The output end of the sensor module is electrically connected with the input end of the central processing unit, and the output end of the central processing unit is electrically connected with the input end of the humidity control module and the input end of the temperature control module. The output end of the humidity control module and the output end of the temperature control module are electrically connected with the air conditioning unit. According to the multi-split air conditioning unit humidity control system, the humidity control module cooperates with the temperature control module to dynamically adjust the humidity of the output space of the air conditioning unit.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning control systems, and in particular to a humidity control system for a multi-connected air conditioning unit. Background Art

[0002] The humidity control system of an air conditioning unit is a specially designed system for precisely controlling the humidity of indoor air. This system is usually integrated with air conditioning equipment and is mainly used in environments with high humidity requirements, such as data centers, laboratories, museums, clean rooms, etc. The humidity control system ensures that the indoor environment remains within the set humidity range by adjusting the moisture content in the air. The humidity control system of an air conditioning unit generally consists of a humidity sensor, a humidifier, a dehumidifier, a controller, and a ventilation system. The controller is the brain of the humidity control system. According to the data provided by the humidity sensor, it automatically adjusts the working state of the humidifier or dehumidifier to ensure that the indoor humidity remains within the set range. In the humidity control of the air conditioning unit, the ventilation system can also be used in conjunction with humidity control to control the indoor humidity by adjusting the ratio of fresh air and return air. Introducing an appropriate amount of fresh air can help regulate the moisture content in the air.

[0003] However, the existing air conditioning unit control system ignores the influence of the air outlet temperature on the ambient humidity when controlling the ambient humidity, and there is coupling in the control of the ambient humidity and temperature, resulting in insufficient accuracy of humidity control. Summary of the invention

[0004] Based on this, it is necessary to provide a multi-split air conditioning unit humidity control system to address the technical problem of insufficient humidity control accuracy of existing air conditioning unit control systems.

[0005] A humidity control system for a multi-split air-conditioning unit, comprising a central processing unit, a humidity control module, a temperature control module, a sensor module and an air-conditioning unit, wherein the sensor module is arranged in each installation space of the multi-split air-conditioning unit to detect the corresponding ambient temperature and humidity, wherein the output end of the sensor module is electrically connected to the input end of the central processing unit, the output end of the central processing unit is electrically connected to the input end of the humidity control module and the input end of the temperature control module respectively, and the output end of the humidity control module and the output end of the temperature control module are electrically connected to the air-conditioning unit respectively; The air conditioning unit includes a cooling tower, a plurality of cooling water valves, a plurality of surface coolers and a plurality of air blowers. The output end of the cooling tower is connected to the input ends of the plurality of surface coolers through the plurality of cooling water valves. The output ends of the plurality of surface coolers are connected to the input end of the cooling tower. The plurality of air blowers are respectively arranged at the output sides of the plurality of surface coolers. The humidity control module includes a humidity controller, an air supply temperature controller and a plurality of air supply temperature sensors. The input end of the humidity controller is electrically connected to the output end of the central processing unit, the output end of the humidity controller is electrically connected to the input end of the air supply temperature controller, and the output end of the air supply temperature controller is electrically connected to a plurality of cooling water valves; the plurality of air supply temperature sensors are respectively arranged at the air outlet ends of a plurality of air supply fans and are electrically connected to the humidity controllers.

[0006] In one embodiment, the temperature control module includes a temperature controller, an air volume controller and several air volume sensors, the input end of the temperature controller is electrically connected to the output end of the central processing unit, the output end of the temperature controller is electrically connected to the input end of the air volume controller, and the output end of the air volume controller is electrically connected to several air blowers; the several air volume sensors are respectively arranged at the air outlet ends of several air blowers and are electrically connected to the temperature controller.

[0007] In one of the embodiments, the sensor module includes a plurality of ambient temperature sensors and a plurality of ambient humidity sensors, and the plurality of ambient temperature sensors and the plurality of ambient humidity sensors are respectively arranged in corresponding installation spaces and are respectively electrically connected to input terminals of a central processing unit.

[0008] In one embodiment, the air-conditioning unit further comprises a plurality of chillers, and the plurality of chillers are respectively arranged between the cooling tower and the plurality of surface coolers, and the plurality of chillers correspond one to one with the plurality of surface coolers, and each chiller is respectively connected to the cooling tower and the corresponding surface cooler pipeline, and an output end on one side of each chiller is connected to an input end of the surface cooler through a corresponding cooling water valve.

[0009] In one embodiment, the air-conditioning unit further includes a plurality of heaters, which are respectively arranged between a plurality of chillers and a plurality of surface coolers, and the plurality of heaters correspond one-to-one with a plurality of surface coolers and a plurality of chillers, and each heater is respectively connected to a corresponding chiller and a corresponding surface cooler pipeline.

[0010] In one embodiment, the air conditioning unit further comprises a plurality of filters, the plurality of filters respectively correspond to the plurality of surface coolers, and each filter is arranged on a side of the corresponding surface cooler facing away from the air supply fan.

[0011] In one of the embodiments, the air conditioning unit further includes a plurality of return air ducts, each of which corresponds to a plurality of filters respectively. The input end of each return air duct is connected to the corresponding installation space, and the output end of each return air duct is connected to the side of the corresponding filter facing away from the surface cooler.

[0012] In one of the embodiments, a return air valve is provided at one end of each of the return air ducts facing the corresponding filter to control the opening and closing of the return air duct relative to the filter.

[0013] In one of the embodiments, each of the above-mentioned return air ducts is also provided with an exhaust port, and the exhaust port is arranged on the side wall of the return air duct to form a branch pipe port.

[0014] In one of the embodiments, each of the above-mentioned air outlets is provided with an air exhaust valve to control the opening and closing of the air outlet.

[0015] In one embodiment, the air conditioning unit further includes a plurality of fresh air ducts, each of which corresponds to a plurality of filters respectively. The input end of each fresh air duct is connected to the outside atmosphere, and the output end of each fresh air duct is connected to the side of the corresponding filter facing away from the surface cooler.

[0016] In one of the embodiments, a fresh air valve is provided at one end of each of the fresh air ducts facing away from the corresponding filter.

[0017] The humidity control system of the multi-split air conditioner unit mentioned above dynamically adjusts the humidity of the output space of the air conditioner unit through the humidity control module and the temperature control module. The humidity control module includes a humidity controller, an air supply temperature controller and a plurality of air supply temperature sensors. The input end of the humidity controller is electrically connected to the output end of the central processing unit, the output end of the humidity controller is electrically connected to the input end of the air supply temperature controller, and the output end of the air supply temperature controller is electrically connected to a plurality of cooling water valves; the plurality of air supply temperature sensors are respectively arranged at the air outlet ends of a plurality of air supply fans and are electrically connected to the humidity controller, so that the humidity controller can output a control signal to the air supply temperature controller according to the ambient humidity comparison result output by the central processing unit and the detection data of the air supply temperature sensor, and then the air supply temperature controller controls the corresponding chilled water valve opening. When the chilled water valve opening is increased, the air supply temperature is reduced, and the moisture in the fresh air will be condensed and discharged, thereby reducing the ambient humidity; otherwise, the ambient humidity is increased; in the above-mentioned adjustment process, the temperature control module can assist in adjusting the ambient temperature and humidity by controlling the air volume by controlling the corresponding air supply fan power. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a humidity control system for a multi-split air-conditioning unit in one embodiment; Figure 2 Schematic diagram of the structure of an air-conditioning unit of a humidity control system of a multi-split air-conditioning unit in an embodiment. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0025] See also Figure 1 to Figure 2The present invention discloses a humidity control system for a multi-split air-conditioning unit, which comprises a central processing unit 1, a humidity control module, a temperature control module, a sensor module and an air-conditioning unit. The sensor module is arranged in each installation space of the multi-split air-conditioning unit to detect the corresponding ambient temperature and humidity. The output end of the sensor module is electrically connected to the input end of the central processing unit 1, and the output end of the central processing unit 1 is electrically connected to the input end of the humidity control module and the input end of the temperature control module respectively. The output end of the humidity control module and the output end of the temperature control module are electrically connected to the air-conditioning unit respectively, so that the humidity control module cooperates with the temperature control module to control the humidity of the fresh air output by the air-conditioning unit according to the ambient humidity condition fed back by the sensor module. Specifically, the air conditioning unit includes a cooling tower 51, a plurality of cooling water valves 52, a plurality of surface coolers 53 and a plurality of blowers 54. The output end of the cooling tower 51 is respectively connected to the input end of the plurality of surface coolers 53 through the plurality of cooling water valves 52, and the output end of the plurality of surface coolers 53 is connected to the input end of the cooling tower 51, thereby forming a plurality of cooling water circulation pipelines; the plurality of blowers 54 are respectively arranged at the output side of the plurality of surface coolers 53, so that each blower 54 can blow the fresh air cooled by the corresponding surface cooler 53 to the corresponding installation space to realize cooling; the humidity control module includes a humidity controller 31, a supply air temperature controller 32 and a plurality of blowers The input end of the air temperature sensor 33 and the humidity controller 31 are electrically connected to the output end of the central processor 1, the output end of the humidity controller 31 is electrically connected to the input end of the air supply temperature controller 32, and the output end of the air supply temperature controller 32 is electrically connected to a number of cooling water valves 52; a number of air supply temperature sensors 33 are respectively arranged at the air outlet ends of a number of air supply fans 54 and are electrically connected to the humidity controller 31, so that the humidity controller 31 can output a control signal to the air supply temperature controller 32 according to the ambient humidity comparison result output by the central processor 1 and the detection data of the air supply temperature sensor 33, and then the air supply temperature controller 32 controls the corresponding chilled water valve opening. When the chilled water valve opening is increased, the air supply temperature is reduced, and the moisture in the fresh air will condense and discharge, thereby reducing the ambient humidity; otherwise, the ambient humidity is increased; in the above-mentioned adjustment process, the temperature control module can assist in adjusting the ambient temperature and humidity by controlling the air volume by controlling the power of the corresponding air supply fan 54.

[0026] Furthermore, the temperature control module includes a temperature controller 21, an air volume controller 22 and a plurality of air volume sensors 23. The input end of the temperature controller 21 is electrically connected to the output end of the central processing unit 1, the output end of the temperature controller 21 is electrically connected to the input end of the air volume controller 22, and the output end of the air volume controller 22 is electrically connected to a plurality of air blowers 54; the plurality of air volume sensors 23 are respectively arranged at the air outlet ends of the plurality of air blowers 54 and are electrically connected to the temperature controller 21, so that the temperature controller 21 can output a control signal to the air volume controller 22 according to the comparison result of the ambient temperature at the output end of the central processing unit 1 and the detection data of the air volume sensor 23, and then the air volume controller 22 controls the output power of the corresponding air blower 54, and dynamically adjusts the ambient temperature and humidity of the installation space by adjusting the air outlet in coordination with the humidity control module.

[0027] Furthermore, the sensor module includes a plurality of ambient temperature sensors 41 and a plurality of ambient humidity sensors 42, and the plurality of ambient temperature sensors 41 and the plurality of ambient humidity sensors 42 are respectively arranged in corresponding installation spaces and are respectively electrically connected to the input end of the central processing unit 1, so that the central processing unit 1 can perform real-time detection of the ambient temperature and humidity of the plurality of installation spaces.

[0028] Furthermore, the air-conditioning unit also includes a plurality of chillers 55, and the plurality of chillers 55 are respectively arranged between the cooling tower 51 and the plurality of surface coolers 53, and the plurality of chillers 55 correspond one-to-one to the plurality of surface coolers 53, and each chiller 55 is respectively connected to the cooling tower 51 and the corresponding surface cooler 53 by pipeline, and an output end on one side of each chiller 55 is connected to an input end of the surface cooler 53 through a corresponding cooling water valve 52, so that the chiller 55 can further control the temperature of the cooling water.

[0029] Furthermore, the air-conditioning unit also includes a plurality of heaters 56, and the plurality of heaters 56 are respectively arranged between the plurality of chillers 55 and the plurality of coolers 53. The plurality of heaters 56 correspond one-to-one to the plurality of coolers 53 and the plurality of chillers 55. Each heater 56 is respectively connected to the corresponding chiller 55 and the corresponding cooler 53 pipeline, so that the heater 56 can cooperate with the corresponding chiller 55 to control the temperature of the cooling water output to the cooler 53.

[0030] Furthermore, the air-conditioning unit also includes a plurality of filters 57, and the plurality of filters 57 correspond one-to-one to the plurality of coolers 53, respectively, and each filter 57 is arranged on the side of the corresponding cooler 53 facing away from the blower 54, so that the filter 57 can filter the airflow entering the cooler 53, thereby ensuring the cleanliness of the cold air output by the air-conditioning unit.

[0031] Furthermore, the air conditioning unit further includes a plurality of return air ducts 58, each of which corresponds to a plurality of filters 57. The input end of each return air duct 58 is connected to the corresponding installation space, and the output end of each return air duct 58 is connected to the side of the corresponding filter 57 facing away from the surface cooler 53, so that a return air cycle is formed between each installation space and the air conditioning unit. Specifically, a return air valve 581 is provided at one end of each return air duct 58 facing the corresponding filter 57 to control the opening and closing of the return air duct 58 relative to the filter 57.

[0032] Furthermore, each return air duct 58 is also provided with an exhaust port 582, which is provided on the side wall of the return air duct 58 to form a branch port. When the air conditioning unit is switched to the fresh air working mode, the corresponding return air valve 581 is closed, so that the return air can be discharged through the corresponding exhaust port 582. Specifically, each exhaust port 582 is provided with an exhaust valve 583 to control the opening and closing of the exhaust port 582.

[0033] Furthermore, the air conditioning unit further includes a plurality of fresh air ducts 59, each of which corresponds to a plurality of filters 57. The input end of each fresh air duct 59 is connected to the outside atmosphere, and the output end of each fresh air duct 59 is connected to the side of the corresponding filter 57 facing away from the surface cooler 53, so that each fresh air duct 59 can transport fresh air to the filter 57. Specifically, a fresh air valve 591 is provided at one end of each fresh air duct 59 facing away from the corresponding filter 57 to control the opening and closing of the fresh air duct 59 relative to the filter 57.

[0034] In summary, the humidity control system of the multi-split air conditioner disclosed in the present invention dynamically adjusts the humidity of the output space of the air conditioner through the humidity control module and the temperature control module. The humidity control module includes a humidity controller, an air supply temperature controller and a plurality of air supply temperature sensors. The input end of the humidity controller is electrically connected to the output end of the central processing unit, the output end of the humidity controller is electrically connected to the input end of the air supply temperature controller, and the output end of the air supply temperature controller is electrically connected to a plurality of cooling water valves; the plurality of air supply temperature sensors are respectively arranged at the air outlet ends of a plurality of air supply fans and electrically connected to the humidity controller, so that the humidity controller can output a control signal to the air supply temperature controller according to the ambient humidity comparison result output by the central processing unit and the detection data of the air supply temperature sensor, and then the air supply temperature controller controls the corresponding chilled water valve opening. When the chilled water valve opening is increased, the air supply temperature is reduced, and the moisture in the fresh air will be condensed and discharged, thereby reducing the ambient humidity; otherwise, the ambient humidity is increased; in the above-mentioned adjustment process, the temperature control module can assist in adjusting the ambient temperature and humidity by controlling the air volume by controlling the power of the corresponding air supply fan.

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A humidity control system for a multi-split air conditioning unit, characterized in that: include: A central processing unit, a humidity control module, a temperature control module, a sensor module and an air conditioning unit. The sensor module is arranged in each installation space of the multi-split air conditioning unit to detect the corresponding ambient temperature and humidity. The output end of the sensor module is electrically connected to the input end of the central processing unit. The output end of the central processing unit is electrically connected to the input end of the humidity control module and the input end of the temperature control module respectively. The output end of the humidity control module and the output end of the temperature control module are electrically connected to the air conditioning unit respectively. The air conditioning unit includes a cooling tower, a plurality of cooling water valves, a plurality of surface coolers and a plurality of air blowers. The output end of the cooling tower is connected to the input ends of the plurality of surface coolers through the plurality of cooling water valves. The output ends of the plurality of surface coolers are connected to the input end of the cooling tower. The plurality of air blowers are respectively arranged at the output sides of the plurality of surface coolers. The humidity control module includes a humidity controller, an air supply temperature controller and a plurality of air supply temperature sensors. The input end of the humidity controller is electrically connected to the output end of the central processing unit, the output end of the humidity controller is electrically connected to the input end of the air supply temperature controller, and the output end of the air supply temperature controller is electrically connected to a plurality of cooling water valves; the plurality of air supply temperature sensors are respectively arranged at the air outlet ends of a plurality of air supply fans and are electrically connected to the humidity controllers.

2. The humidity control system of a multi-split air conditioner unit according to claim 1, characterized in that: The temperature control module includes a temperature controller, an air volume controller and several air volume sensors. The input end of the temperature controller is electrically connected to the output end of the central processing unit, the output end of the temperature controller is electrically connected to the input end of the air volume controller, and the output end of the air volume controller is electrically connected to several air blowers; the several air volume sensors are respectively arranged at the air outlet ends of the several air blowers and are electrically connected to the temperature controller.

3. The humidity control system of a multi-split air conditioner unit according to claim 2, characterized in that: The sensor module comprises a plurality of ambient temperature sensors and a plurality of ambient humidity sensors, wherein the plurality of ambient temperature sensors and the plurality of ambient humidity sensors are respectively arranged in corresponding installation spaces and are respectively electrically connected to input ends of the central processing unit.

4. The humidity control system of a multi-split air conditioner unit according to claim 3, characterized in that: The air conditioning unit also includes a plurality of chillers, which are respectively arranged between the cooling tower and the plurality of surface coolers. The chillers correspond one to one with the plurality of surface coolers. Each chiller is respectively connected to the cooling tower and the corresponding surface cooler pipeline, and an output end on one side of each chiller is connected to an input end of the surface cooler through a corresponding cooling water valve.

5. The humidity control system of a multi-split air conditioner unit according to claim 4, characterized in that: The air conditioning unit also includes a plurality of heaters, which are respectively arranged between the plurality of chillers and the plurality of surface coolers, and the plurality of heaters correspond one-to-one with the plurality of surface coolers and the plurality of chillers, and each heater is respectively connected to the corresponding chiller and the corresponding surface cooler pipeline.

6. The humidity control system of a multi-split air conditioner unit according to claim 5, characterized in that: The air conditioning unit further comprises a plurality of filters, which correspond to the plurality of surface coolers one by one, and each filter is arranged on a side of the corresponding surface cooler facing away from the air supply fan.

7. The humidity control system of a multi-split air conditioner unit according to claim 6, characterized in that: The air conditioning unit also includes a plurality of return air ducts, which correspond to a plurality of filters one by one. The input end of each return air duct is connected to the corresponding installation space, and the output end of each return air duct is connected to the side of the corresponding filter facing away from the surface cooler.

8. The humidity control system of a multi-split air conditioner unit according to claim 7, characterized in that: A return air valve is provided at one end of each return air duct facing the corresponding filter to control the opening and closing of the return air duct relative to the filter.

9. The humidity control system of a multi-split air conditioner unit according to claim 8, characterized in that: Each return air duct is also provided with an exhaust port, which is arranged on the side wall of the return air duct to form a branch pipe port.

10. The humidity control system of a multi-split air conditioner unit according to claim 9, characterized in that: Each exhaust port is provided with an exhaust valve to control the opening and closing of the exhaust port.

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