Light-controlled dehumidification integrated intelligent air-conditioning unit and light-controlled dehumidification refrigeration method thereof

Abstract

The present invention belongs to the technical field of air-conditioning equipment, and in particular relates to a light-controlled dehumidification integrated intelligent air-conditioning unit and a light-controlled dehumidification refrigeration method thereof. The light-controlled dehumidification integrated intelligent air-conditioning unit comprises a base, a refrigeration device, a dehumidification and refrigeration integrated device, a light intensity and humidity control device and a blowing device. The light intensity and humidity control device adopts a light sensing unit and a humidity sensing unit to detect the light intensity and air humidity of a greenhouse, and then switches the refrigerant movement path between condensers at two different positions through a reversing mechanism in the dehumidification and refrigeration integrated device, thereby realizing integrated intelligent switching of dehumidification mode and refrigeration mode, concentrating the dehumidification and refrigeration functions on the same machine, and has a simple structure and ingenious design, which is beneficial to improving the practicality of the air-conditioning unit, conforming to the concept of environmental protection, and beneficial to the development of enterprises.

Description

Technical Field

[0001] The present invention belongs to the technical field of air-conditioning equipment, and in particular relates to a light-controlled dehumidification integrated intelligent air-conditioning unit and a light-controlled dehumidification refrigeration method thereof. Background Art

[0002] Greenhouse year-round efficient, high-quality, clean and safe production is the development direction of the facility horticulture industry, but unsuitable greenhouse environmental conditions have become a limiting factor in its development. In order to ensure suitable environmental conditions for crop production, improve greenhouse environmental control efficiency and greenhouse production economic benefits, it is necessary to comprehensively regulate the greenhouse environment rather than simply regulating a certain environmental factor. Comprehensive greenhouse environmental regulation involves heating, cooling, humidification, dehumidification, CO2 supplementation, air filtration, disinfection, etc. The implementation process is closely related to greenhouse ventilation and airflow organization.

[0003] Most traditional greenhouses need to adjust the indoor temperature and then install air-conditioning units with corresponding adjustment functions. In addition, in addition to controlling the temperature in the greenhouse, the greenhouse system also needs to ensure the gas humidity in the greenhouse to prevent the products from being in an environment with inappropriate humidity, which affects their growth. Most greenhouse systems in the prior art use independent dehumidification mechanisms and humidity sensing units to achieve the function of controlling the gas humidity in the greenhouse. The structure is complex, and the independently arranged dehumidification mechanism occupies a certain proportion of the space, which reduces the practicality of the dehumidification part. At the same time, the dehumidification mechanism has corresponding energy consumption, which increases the energy consumption of the greenhouse system, which is not conducive to the development of the enterprise.

[0004] Most traditional greenhouses do not require indoor dehumidification during daytime due to exposure to solar ultraviolet rays. Since the product growth time is almost half during the day and half at night, the independently installed dehumidification mechanism is in a non-working state for half of the time, resulting in a waste of resources and seriously affecting the practicality of the dehumidification mechanism. Summary of the invention

[0005] The purpose of the present invention is to provide an integrated light-controlled dehumidification intelligent air-conditioning unit and a light-controlled dehumidification refrigeration method thereof, aiming to solve the technical problems in the prior art that greenhouses use independent dehumidification mechanisms for dehumidification, which has low practicality, wastes resources and is not conducive to enterprise development.

[0006] To achieve the above-mentioned purpose, an embodiment of the present invention provides a light-controlled dehumidification integrated intelligent air-conditioning unit, including a base, a refrigeration device, a dehumidification and refrigeration integrated device, a light intensity and humidity control device and a blowing device; the base is provided with an installation cavity, and the installation cavity is provided with an air inlet, an air outlet, a water inlet pipe and a water outlet pipe; the refrigeration device includes a boosting mechanism, a refrigerant transmission pipe and an evaporation mechanism, the refrigerant transmission pipe connects the boosting mechanism and the evaporation mechanism to form a circulation structure, the evaporation mechanism is arranged in the installation cavity and is located at the output end of the air inlet, the boosting mechanism is used to boost the refrigerant and drive the refrigerant to move along the pipeline into the evaporation mechanism and input into the evaporation mechanism through the air inlet The gas heat exchange is carried out to reduce the temperature of the gas after the heat exchange by the evaporation mechanism; the dehumidification and refrigeration integrated device includes a first condensing mechanism, a second condensing mechanism and a reversing mechanism, the first condenser is arranged in the installation cavity and is connected between the boosting mechanism and the evaporation mechanism through the refrigerant transmission pipe pipeline, the input end and the output end of the first condensing mechanism are respectively connected to the water inlet pipe and the water outlet pipe and are used to transfer the heat of the refrigerant in the refrigerant transmission pipe to the fluid of the water outlet pipe, the second condensing mechanism is arranged in the installation cavity and is located at the input end of the air outlet, the second condensing mechanism is connected to the evaporation mechanism and the boosting mechanism through the refrigerant transmission pipe pipeline The switching mechanism is arranged at the output end of the boosting mechanism, and the input end of the switching mechanism is connected to the input end pipeline of the boosting mechanism. The output end of the switching mechanism is divided into two groups, and the output ends of the two groups of switching mechanisms are respectively connected to the first condenser and the second condenser pipelines; the light intensity and humidity control device comprises a light brightness sensor, a light relay, a humidity sensor and a control center, and the control center is arranged in the installation cavity, the output end of the light brightness sensor is electrically connected to the control center and is used to monitor the light intensity in the greenhouse to confirm the time period of the greenhouse, and the output end of the humidity sensor is electrically connected to the control center and Used to monitor the air humidity in the greenhouse, the output end of the control center is connected to the switching mechanism to adjust the on / off state of the two output ends of the switching mechanism, the input end of the light relay is connected to the output end of the control center, the output end of the light relay is connected to the light source of the greenhouse, and the light relay is used to control the on / off of the light source of the greenhouse to maintain the indoor light intensity of the greenhouse during the daytime; the air blowing device is arranged in the installation cavity and located between the air outlet and the second condensing mechanism; wherein, when the output end of the switching mechanism is only connected to the first condensing mechanism, the air blowing device is used to directly output the low-temperature gas after heat exchange by the evaporation mechanism to the greenhouse;When the output end of the reversing mechanism is only connected to the second condensing mechanism, the blowing device is used to output the low-temperature dry gas after heat exchange by the evaporating mechanism and heating by the second condensing mechanism to the greenhouse. ;

[0007] Optionally, the reversing mechanism is a three-way reversing valve, the input end of the reversing mechanism is connected to the output end pipeline of the boosting mechanism through the refrigerant transmission pipe, and the two output ends of the reversing mechanism are respectively connected to the first condensing mechanism and the second condensing mechanism pipelines through the refrigerant transmission pipe.

[0008] Optionally, the blowing device is a variable frequency fan, and the boosting mechanism is a variable frequency compressor.

[0009] Optionally, the evaporation mechanism includes a mounting frame and a fin group, the mounting frame is a through-hole frame structure, the fin group is obliquely arranged in the mounting frame and forms a plurality of inclined passages for condensing moisture in the gas, and the refrigerant delivery pipe is reciprocated through the inclined passages to abut against the gas passing through the inclined passages to reduce the gas temperature.

[0010] Optionally, the evaporation mechanism further includes a condensation tray, which is disposed at the bottom of the mounting frame and is used to receive condensed water that is gathered on the fin group and falls due to gravity.

[0011] Optionally, the refrigerant transmission pipe used to connect the first condensing mechanism, the second condensing mechanism and the evaporating mechanism is arranged in a three-way pipe structure, and the first condensing mechanism, the second condensing mechanism and the evaporating mechanism are respectively connected to the pipeline with a one-way valve.

[0012] Optionally, a filter and a throttle valve are arranged in sequence between the first condensing mechanism, the second condensing mechanism and the evaporating mechanism, the filter is used to remove moisture and impurities in the refrigerant, and the throttle valve is used to reduce the pressure of the refrigerant.

[0013] Optionally, a liquid storage tank for storing excess refrigerant is provided between the first condensing mechanism, the second condensing mechanism and the evaporating mechanism.

[0014] Optionally, a three-way pipe structure is provided at the output end of the water outlet pipe, and the output end of the water outlet pipe is divided into two groups, wherein one group of the output ends of the water outlet pipe is provided with a condensing pressure regulating valve for regulating the pressure in the water outlet pipe.

[0015] The above one or more technical solutions in the light-controlled dehumidification integrated intelligent air-conditioning unit provided by the embodiment of the present invention have at least one of the following technical effects: The working principle of the light-controlled dehumidification integrated intelligent air-conditioning unit is: when the greenhouse is in a preset daytime period, the light brightness sensor monitors the light intensity in the greenhouse and feeds back the light intensity data to the control center, and the control center determines whether the indoor light intensity is lower than the preset value according to the preset light intensity value. When the indoor light intensity is lower than the preset value, the control center turns on the light source through the light relay to maintain the light intensity in the greenhouse; the reversing mechanism and the second cooling mechanism are connected. The output end connected to the condenser is closed, and the boosting mechanism drives the refrigerant loaded in the refrigerant delivery pipe to increase the pressure and temperature. The water body transported to the first condenser through the water inlet pipe exchanges heat with the refrigerant in the refrigerant delivery pipe, so that the refrigerant is reduced in pressure and temperature and the fluid output through the water outlet pipe is heated; the refrigerant delivery pipe transports the low-temperature and low-pressure refrigerant to the evaporation mechanism, and the blower device is started. The gas input into the installation cavity from the air inlet contacts the heat exchange unit of the evaporation mechanism and exchanges heat with the low-temperature and low-pressure refrigerant. The gas temperature is reduced and transported from the air outlet to the greenhouse through the blower device, thereby achieving a greenhouse cooling effect.

[0016] When the greenhouse is in the preset night period, the humidity sensor monitors the air humidity in the greenhouse and feeds back the air humidity data to the control center. The control center determines whether the indoor air humidity is lower than the preset value based on the preset air humidity. When the indoor air humidity is lower than the preset air humidity value, the reversing mechanism closes the output end of the first condenser connected to the reversing mechanism, and opens the output end of the reversing mechanism connected to the second condenser. The boosting mechanism drives the refrigerant loaded in the refrigerant transmission pipe to increase the pressure and temperature. The refrigerant transmission pipe transports high-temperature and high-pressure refrigerant through the second condenser. The blowing device blows air, and the air passing through the second condenser exchanges heat with the refrigerant in the refrigerant transmission pipe, so that the refrigerant is reduced in pressure and temperature, and the heated air obtains dry The cooling medium is blown into the greenhouse through the blowing device to achieve a drying effect; the cooling medium is conveyed by the refrigerant conveying pipe to convey the low-temperature and low-pressure cooling medium to the evaporation mechanism, and the gas input into the installation cavity from the air inlet contacts the heat exchange unit of the evaporation mechanism and exchanges heat with the low-temperature and low-pressure cooling medium, and the moisture of the gas is condensed on the heat exchange unit of the evaporation mechanism. At the same time, the gas temperature is reduced and conveyed to the second condenser to maintain the low-temperature state of the gas before it is heated and dried by the second condenser; the humidity sensor monitors the air humidity in the greenhouse; when the air humidity in the greenhouse is lower than the preset value of the air humidity, the reversing mechanism closes the output end of the reversing mechanism connected to the second condensing mechanism, and opens the output end of the reversing mechanism connected to the first condensing mechanism to restore the cooling effect of the greenhouse.

[0017] Compared with the prior art greenhouses that use independently set dehumidification mechanisms, which have low practicality, cause waste of resources, increase production costs, and are not conducive to the development of enterprises, the light-controlled dehumidification integrated intelligent air-conditioning unit provided by the present invention is provided with a light sensing unit and a humidity sensing unit. During the day, the light sensing unit controls the indoor light source through a relay to achieve supplementary light as a simple and effective dehumidification method. At night, the indoor air humidity is constantly monitored through a humidity sensor. Two condensers with independent refrigerant circuits are respectively arranged in different positions. When dehumidification is required, the refrigerant circuit is switched. , so that the condenser located at the air outlet is turned on, so that the gas can be heated and dried for a second time after passing through the evaporator for one time to achieve the effect of repeated dehumidification, and the dehumidification effect is significant. When the air humidity decreases, the output end of the reversing mechanism is reset to switch to the cooling mode. Combined with the control center, the dehumidification function and the cooling function can be effectively and sensitively converted. It has a simple structure, ingenious design and significant functions. At the same time, dehumidification can be achieved only through the air-conditioning unit, and there is no need to set up a separate dehumidification mechanism. It effectively improves the indoor space utilization rate of the greenhouse, enhances the practicality of the air-conditioning unit, and is beneficial to the development of the enterprise.

[0018] In order to achieve the above object, an embodiment of the present invention provides a light-controlled dehumidification and refrigeration method, which is performed by the above-mentioned light-controlled dehumidification integrated intelligent air-conditioning unit, and includes the following steps:

[0019] S100: When the greenhouse is in a preset daytime period, the light brightness sensor monitors the light intensity in the greenhouse and feeds back the light intensity data to the control center. The control center determines whether the indoor light intensity is lower than the preset value according to the preset light intensity value. When the indoor light intensity is lower than the preset value, the control center turns on the light source through the light relay to maintain the light intensity in the greenhouse;

[0020] S200: the output end of the reversing mechanism connected to the second condenser is closed, the boosting mechanism drives the refrigerant loaded in the refrigerant delivery pipe to increase the pressure and temperature, the water transported to the first condenser through the water inlet pipe exchanges heat with the refrigerant in the refrigerant delivery pipe, so that the refrigerant is depressurized and cooled, and the fluid output through the water outlet pipe is heated;

[0021] S300: The refrigerant delivery pipe delivers low-temperature and low-pressure refrigerant to the evaporation mechanism, the blower device is started, and the gas input into the installation cavity from the air inlet contacts the heat exchange unit of the evaporation mechanism and exchanges heat with the low-temperature and low-pressure refrigerant, the gas temperature is reduced and the gas is delivered from the air outlet to the greenhouse through the blower device, thereby achieving a greenhouse cooling effect;

[0022] S400: When the greenhouse is in a preset night period, the humidity sensor monitors the air humidity in the greenhouse and feeds back the air humidity data to the control center, and the control center determines whether the indoor air humidity is lower than a preset value according to the preset air humidity;

[0023] S500: Repeat S400, when the indoor air humidity is lower than the preset air humidity value, the reversing mechanism closes the output end of the first condenser connected to the reversing mechanism, and opens the output end of the reversing mechanism connected to the second condenser;

[0024] S600: The boosting mechanism drives the refrigerant loaded in the refrigerant delivery pipe to increase the pressure and temperature. The refrigerant delivery pipe delivers the high-temperature and high-pressure refrigerant through the second condenser. The blower blows air. The air passing through the second condenser exchanges heat with the refrigerant in the refrigerant delivery pipe, so that the refrigerant is depressurized and cooled. The heated air is dried and blown into the greenhouse through the blower.

[0025] S700: The refrigerant delivery pipe delivers low-temperature and low-pressure refrigerant to the evaporation mechanism, the gas input into the installation cavity from the air inlet contacts the heat exchange unit of the evaporation mechanism and exchanges heat with the low-temperature and low-pressure refrigerant, the moisture of the gas condenses on the heat exchange unit of the evaporation mechanism, and at the same time, the gas temperature is reduced and delivered to the second condenser to maintain the low-temperature state of the gas before being heated and dried by the second condenser; the humidity sensor monitors the air humidity in the greenhouse;

[0026] S800: Repeat S600 to S700. When the indoor air humidity of the greenhouse is lower than the preset air humidity value, the reversing mechanism closes the output end connected to the second condensing mechanism and opens the output end connected to the first condensing mechanism to restore the greenhouse cooling effect.

[0027] The above one or more technical solutions in the light-controlled dehumidification and refrigeration method provided by the embodiment of the present invention have at least one of the following technical effects: compared with the prior art that the greenhouse adopts an independently set dehumidification mechanism, which has low practicality, wastes resources, increases production costs, and is not conducive to the development of the enterprise, the light-controlled dehumidification integrated intelligent air-conditioning unit provided by the present invention is provided with a light sensing unit and a humidity sensing unit, wherein during the daytime, the light sensing unit controls the indoor light source through a relay to achieve supplementary light as a simple and effective dehumidification means, and at night, the indoor air humidity is monitored at all times through a humidity sensor, and two condensers with independent refrigerant circuits are respectively set at At different positions, when dehumidification is needed, the refrigerant circuit is switched to make the condenser at the air outlet conductive, so that the water condenses when the gas passes through the evaporator to obtain a dry dehumidification, and then enters the condenser for secondary heating and drying to achieve repeated dehumidification. The dehumidification effect is significant. When the air humidity decreases, the output end of the reversing mechanism is reset to switch to the cooling mode. Combined with the control center, effective and sensitive conversion between the dehumidification function and the cooling function can be achieved. The structure is simple, the design is ingenious, and the function is significant. At the same time, dehumidification can be achieved only through the air-conditioning unit, and there is no need to set up a dehumidification mechanism separately. It effectively improves the indoor space utilization rate of the greenhouse, enhances the practicality of the air-conditioning unit, and is beneficial to the development of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 A schematic diagram of the structure of a light-controlled and dehumidification integrated intelligent air-conditioning unit provided in an embodiment of the present invention.

[0030] Figure 2 For along Figure 1 Partial cutaway view of Zhongguangkong’s integrated dehumidification intelligent air-conditioning unit.

[0031] Figure 3 A schematic diagram of the refrigerant flow path of the light-controlled and dehumidification integrated intelligent air-conditioning unit in cooling mode provided by an embodiment of the present invention.

[0032] Figure 4 A schematic diagram of the refrigerant flow path of the light-controlled and dehumidification integrated intelligent air-conditioning unit in the dehumidification mode provided by an embodiment of the present invention.

[0033] Figure 5 The present invention provides a flow chart of a light-controlled dehumidification and refrigeration method.

[0034] Among them, the reference numerals in the figure are:

[0035] 10 - base 20 - air blowing device 30 - boost mechanism

[0036] 40 - evaporation mechanism 50 - first condensation mechanism 60 - second condensation mechanism

[0037] 70—Reversing mechanism. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figures 1 to 5 The described embodiments are exemplary and are intended to be used to explain the embodiments of the present invention, but should not be construed as limiting the present invention.

[0039] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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 a limitation on the present invention.

[0040] 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In the embodiments of 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. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0042] In one embodiment of the present invention, Figures 1 to 5As shown, a light-controlled dehumidification integrated intelligent air-conditioning unit is provided, including a base 10, a refrigeration device, a dehumidification and refrigeration integrated device, a light intensity and humidity control device and a blowing device 20; the base 10 is provided with an installation cavity, and the installation cavity is provided with an air inlet, an air outlet, a water inlet pipe and a water outlet pipe; the refrigeration device includes a boosting mechanism 30, a refrigerant transmission pipe and an evaporation mechanism 40, the refrigerant transmission pipe connects the boosting mechanism 30 and the evaporation mechanism 40 to form a circulation structure, the evaporation mechanism 40 is arranged in the installation cavity and is located at the output end of the air inlet, the boosting mechanism 30 is used to boost the refrigerant and drive the refrigerant to move along the pipeline to the evaporation mechanism 40 and input the refrigerant through the air inlet The gas in the evaporation mechanism 40 exchanges heat, so that the temperature of the gas after heat exchange in the evaporation mechanism 40 decreases; the dehumidification and refrigeration integrated device includes a first condensing mechanism 50, a second condensing mechanism 60 and a reversing mechanism 70, the first condenser is arranged in the installation cavity and is connected between the boosting mechanism 30 and the evaporation mechanism 40 through the refrigerant transmission pipe pipeline, the input end and the output end of the first condensing mechanism 50 are respectively connected to the water inlet pipe and the water outlet pipe and are used to transfer the heat of the refrigerant in the refrigerant transmission pipe to the fluid of the water outlet pipe, the second condensing mechanism 60 is arranged in the installation cavity and is located at the input end of the air outlet, the second condensing mechanism 60 is connected to the refrigerant transmission pipe through the refrigerant transmission pipe. The medium transmission pipe is connected between the evaporation mechanism 40 and the boost mechanism 30 and is used to heat and dry the gas output through the air outlet. The reversing mechanism 70 is arranged at the output end of the boost mechanism 30. The input end of the reversing mechanism 70 is connected to the input end pipe of the boost mechanism 30. The output end of the reversing mechanism 70 is divided into two groups. The output ends of the two groups of the reversing mechanisms 70 are respectively connected to the first condenser and the second condenser pipes; the light intensity and humidity control device includes a light brightness sensor, a light relay, a humidity sensor and a control center. The control center is arranged in the installation cavity. The output end of the light brightness sensor is electrically connected to the control center and is used to monitor the humidity in the greenhouse. The light intensity is used to confirm the time period of the greenhouse. The output end of the humidity sensor is electrically connected to the control center and is used to monitor the air humidity in the greenhouse. The output end of the control center is drivingly connected to the reversing mechanism 70 to adjust the on / off state of the two output ends of the reversing mechanism 70. The input end of the light relay is connected to the output end of the control center. The output end of the light relay is connected to the light source of the greenhouse. The light relay is used to control the on / off of the light source of the greenhouse to maintain the indoor light intensity of the greenhouse during the daytime. The air blowing device 20 is arranged in the installation cavity and is located between the air outlet and the second condensing mechanism 60. The normally closed state of the light relay is the light source on state.Among them, when the output end of the reversing mechanism 70 is only connected to the first condensing mechanism 50, the blowing device 20 is used to directly output the low-temperature gas after heat exchange by the evaporation mechanism 40 to the greenhouse; when the output end of the reversing mechanism 70 is only connected to the second condensing mechanism 60, the blowing device 20 is used to output the low-temperature dry gas after heat exchange by the evaporation mechanism 40 and heating by the second condensing mechanism 60 to the greenhouse. In this embodiment, the control center includes an electric control box and a PLC control system. The electric control box and the PLC control system are technically formed and mature structures, and this embodiment will not be repeated. ;

[0043] Specifically, the working principle of the light-controlled dehumidification integrated intelligent air-conditioning unit is as follows: when the greenhouse is in the preset daytime period, the light brightness sensor monitors the light intensity in the greenhouse and feeds back the light intensity data to the control center, and the control center determines whether the indoor light intensity is lower than the preset value according to the preset light intensity value. When the indoor light intensity is lower than the preset value, the control center turns on the light source through the light relay to maintain the light intensity in the greenhouse; the output end of the reversing mechanism 70 connected to the second condenser is closed, and the boost mechanism 30 drives the light source loaded on the The refrigerant in the refrigerant transmission pipe is pressurized and heated, and is transported to the water in the first condenser through the water inlet pipe and exchanges heat with the refrigerant in the refrigerant transmission pipe, so that the refrigerant is reduced in pressure and temperature and the fluid output through the water outlet pipe is heated; the refrigerant transmission pipe transports the low-temperature and low-pressure refrigerant to the evaporation mechanism 40, the blower device 20 is started, and the gas input into the installation cavity from the air inlet contacts the heat exchange unit of the evaporation mechanism 40 and exchanges heat with the low-temperature and low-pressure refrigerant, the gas temperature is reduced and is transported from the air outlet to the greenhouse through the blower device 20, thereby achieving a greenhouse cooling effect.

[0044] When the greenhouse is in the preset night period, the humidity sensor monitors the air humidity in the greenhouse and feeds back the air humidity data to the control center, and the control center determines whether the indoor air humidity is lower than the preset value based on the preset air humidity; when the indoor air humidity is lower than the preset air humidity value, the reversing mechanism 70 closes the output end of the first condenser connected to the reversing mechanism 70, and opens the output end of the reversing mechanism 70 connected to the second condenser; the boosting mechanism 30 drives the refrigerant loaded in the refrigerant transmission pipe to increase the pressure and temperature, and the refrigerant transmission pipe transports the high-temperature and high-pressure refrigerant through the second condenser, and the blowing device 20 blows air, and the air passing through the second condenser exchanges heat with the refrigerant in the refrigerant transmission pipe, so that the refrigerant is reduced in pressure and temperature, and the heated air obtains a drying effect and is blown into the greenhouse through the blowing device 20. ; The refrigerant delivery pipe transports low-temperature and low-pressure refrigerant to the evaporation mechanism 40, and the gas input into the installation cavity from the air inlet contacts the heat exchange unit of the evaporation mechanism 40 and exchanges heat with the low-temperature and low-pressure refrigerant, and the moisture of the gas condenses on the heat exchange unit of the evaporation mechanism 40. At the same time, the gas temperature is reduced and transported to the second condenser to maintain the low temperature state of the gas before it is heated and dried by the second condenser; The humidity sensor monitors the air humidity in the greenhouse; When the indoor air humidity of the greenhouse is lower than the preset air humidity value, the reversing mechanism 70 closes the output end of the reversing mechanism 70 connected to the second condensing mechanism 60, and opens the output end of the reversing mechanism 70 connected to the first condensing mechanism 50, so as to restore the greenhouse cooling effect. In this embodiment, when the air-conditioning unit is in dehumidification mode, the water path part is in a non-working state.

[0045] In this embodiment, the light intensity and humidity control device further includes a room temperature sensor, which is electrically connected to the control center. During the daytime, when the light intensity is greater than the set value, the air conditioning unit is in cooling mode. When the light intensity is less than the set value, the temperature sensor measures the room temperature. When the room temperature is less than the preset temperature value, the relay is closed to turn on the light to increase the indoor temperature; when the room temperature is greater than the set value, the relay is disconnected and the light is turned off. Preferably, the preset room temperature is 35°C; during the night time, the light relay is in a normally open state.

[0046] Compared with the prior art greenhouses that use independently set dehumidification mechanisms, which have low practicality, waste resources, increase production costs, and are not conducive to the development of enterprises, the light-controlled dehumidification integrated intelligent air-conditioning unit provided by the present invention is provided with a light sensing unit and a humidity sensing unit. During the day, the light sensing unit controls the indoor light source through a relay to achieve supplementary light as a simple and effective dehumidification method. During the night, the indoor air humidity is constantly monitored through a humidity sensor. Two condensers with independent refrigerant circuits are respectively arranged at different positions. When dehumidification is required, the refrigerant circuit is switched. The condenser at the air outlet is turned on, so that after the gas passes through the evaporator for one time to condense and dry the moisture, it is heated and dried for a second time to achieve the effect of repeated dehumidification. The dehumidification effect is remarkable. When the air humidity decreases, the output end of the reversing mechanism 70 is reset to switch to the cooling mode. The control center is combined to realize the effective and sensitive conversion of the dehumidification function and the cooling function. The structure is simple, the design is ingenious, and the function is remarkable. At the same time, dehumidification can be achieved only through the air-conditioning unit, and there is no need to set up a separate dehumidification mechanism. The indoor space utilization rate of the greenhouse is effectively improved, the practicality of the air-conditioning unit is enhanced, and it is beneficial to the development of the enterprise.

[0047] like Figures 1 to 5 As shown, in another embodiment of the present invention, the reversing mechanism 70 is a three-way reversing valve, the input end of the reversing mechanism 70 is connected to the output end pipeline of the boosting mechanism 30 through the refrigerant transmission pipe, and the two output ends of the reversing mechanism 70 are respectively connected to the first condensing mechanism 50 and the second condensing mechanism 60 pipelines through the refrigerant transmission pipe. The use of a three-way reversing valve structure is beneficial to the stability of the reversing of the output end, ensuring the switching effect of the dehumidification mode and the cooling mode, and ensuring the structural stability of the air-conditioning unit.

[0048] like Figures 1 to 5 As shown, in another embodiment of the present invention, the blowing device 20 is a variable frequency fan, and the boosting mechanism 30 is a variable frequency compressor. The use of a variable frequency unit is beneficial to controlling the refrigerant movement speed, so that when the air-conditioning unit is in a dehumidification mode, the heat exchange time is increased, the air drying efficiency is improved, and it is beneficial to improve the dehumidification effect.

[0049] like Figures 1 to 5 As shown, in another embodiment of the present invention, the evaporation mechanism 40 includes a mounting frame and a fin group, the mounting frame is a through-hole frame structure, the fin group is obliquely arranged in the mounting frame and forms a plurality of inclined passages for condensing moisture in the gas, the refrigerant delivery pipe is reciprocatedly penetrated in the inclined passages to abut against the gas passing through the inclined passages to reduce the temperature of the gas, and the evaporator structure adopts a fin structure, and the fins are arranged at an inclined angle, which is conducive to forming an effective water baffle structure, further improving the moisture condensation efficiency, and further improving the dehumidification effect.

[0050] like Figures 1 to 5 As shown, in another embodiment of the present invention, the evaporation mechanism 40 also includes a condensation tray, which is arranged at the bottom of the mounting frame and is used to receive condensed water that is gathered on the fin group and falls due to gravity, and to centrally recycle the water, which is in line with the concept of energy conservation and environmental protection.

[0051] like Figures 1 to 5 As shown, in another embodiment of the present invention, the refrigerant transmission pipe used to connect the first condensing mechanism 50, the second condensing mechanism 60 and the evaporating mechanism 40 is arranged in a three-way pipe structure, and the first condensing mechanism 50, the second condensing mechanism 60 and the evaporating mechanism 40 are respectively connected to the evaporating mechanism 40 by a one-way valve through the pipeline.

[0052] like Figures 1 to 5 As shown, in another embodiment of the present invention, a filter and a throttle valve are sequentially arranged between the first condensing mechanism 50 and the second condensing mechanism 60 and the evaporating mechanism 40, the filter is used to remove moisture and impurities in the refrigerant, and the throttle valve is used to reduce the pressure of the refrigerant. The throttle valve and the filter are technically formed and mature structures, and will not be described in detail in this embodiment.

[0053] like Figures 1 to 5 As shown, in another embodiment of the present invention, a liquid storage device for storing excess refrigerant is provided between the first condensing mechanism 50 and the second condensing mechanism 60 and the evaporating mechanism 40. The use of the liquid storage device is beneficial in dealing with excess refrigerant generated when switching between the dehumidification mode and the cooling mode, and is beneficial in improving the practicality of the air-conditioning unit.

[0054] like Figures 1 to 5 As shown, in another embodiment of the present invention, a three-way pipe structure is provided at the output end of the water outlet pipe, and the output end of the water outlet pipe is divided into two groups, and one group of the output ends of the water outlet pipe is provided with a condensing pressure regulating valve for adjusting the pressure in the water outlet pipe. Specifically, in this embodiment, one group of the output ends of the water outlet pipe is connected to an external hot water supply device, which is conducive to improving resource utilization, realizing energy saving, and combining environmental protection concepts.

[0055] like Figures 1 to 5 As shown, in another embodiment of the present invention, the first condensing mechanism 50 is a plate condenser, and the second condensing mechanism 60 is a fin condenser.

[0056] like Figures 1 to 5 As shown, another embodiment of the present invention provides a light-controlled dehumidification and refrigeration method, which is performed by the above-mentioned light-controlled dehumidification integrated intelligent air-conditioning unit, comprising the following steps:

[0057] S100: When the greenhouse is in a preset daytime period, the light brightness sensor monitors the light intensity in the greenhouse and feeds back the light intensity data to the control center. The control center determines whether the indoor light intensity is lower than the preset value according to the preset light intensity value. When the indoor light intensity is lower than the preset value, the control center turns on the light source through the light relay to maintain the light intensity in the greenhouse;

[0058] S200: the output end of the reversing mechanism 70 connected to the second condenser is closed, the boosting mechanism 30 drives the refrigerant loaded in the refrigerant delivery pipe to increase the pressure and temperature, and the water transported to the first condenser through the water inlet pipe exchanges heat with the refrigerant in the refrigerant delivery pipe, so that the refrigerant is depressurized and cooled, and the fluid output through the water outlet pipe is heated;

[0059] S300: The refrigerant delivery pipe delivers the low-temperature and low-pressure refrigerant to the evaporation mechanism 40, the blower device 20 is started, and the gas input into the installation cavity from the air inlet contacts the heat exchange unit of the evaporation mechanism 40 and exchanges heat with the low-temperature and low-pressure refrigerant, the gas temperature is reduced and the gas is delivered from the air outlet to the greenhouse through the blower device 20, so as to achieve a greenhouse cooling effect;

[0060] S400: When the greenhouse is in a preset night period, the humidity sensor monitors the air humidity in the greenhouse and feeds back the air humidity data to the control center, and the control center determines whether the indoor air humidity is lower than a preset value according to the preset air humidity;

[0061] S500: Repeat S400. When the indoor air humidity is lower than the preset air humidity value, the reversing mechanism 70 closes the output end of the first condenser connected to the reversing mechanism 70, and opens the output end of the reversing mechanism 70 connected to the second condenser;

[0062] S600: The boosting mechanism 30 drives the refrigerant loaded in the refrigerant delivery pipe to increase the pressure and temperature. The refrigerant delivery pipe delivers the high-temperature and high-pressure refrigerant through the second condenser. The blower 20 blows air. The air passing through the second condenser exchanges heat with the refrigerant in the refrigerant delivery pipe, so that the refrigerant is depressurized and cooled. The heated air is dried and blown into the greenhouse through the blower 20.

[0063] S700: The refrigerant delivery pipe delivers low-temperature and low-pressure refrigerant to the evaporation mechanism 40, and the gas input into the installation cavity from the air inlet contacts the heat exchange unit of the evaporation mechanism 40 and exchanges heat with the low-temperature and low-pressure refrigerant, and the moisture of the gas condenses on the heat exchange unit of the evaporation mechanism 40. At the same time, the gas temperature is reduced and delivered to the second condenser to maintain the low-temperature state of the gas before being heated and dried by the second condenser; the humidity sensor monitors the air humidity in the greenhouse;

[0064] S800: Repeat S600 to S700. When the indoor air humidity of the greenhouse is lower than the preset air humidity value, the reversing mechanism 70 closes the output end connecting the reversing mechanism 70 and the second condensing mechanism 60, and opens the output end connecting the reversing mechanism 70 and the first condensing mechanism 50, so as to restore the greenhouse cooling effect.

[0065] Specifically, compared with the prior art greenhouse using an independently set dehumidification mechanism, which has low practicality, causes waste of resources, increases production costs, and is not conducive to the technical problems of enterprise development, the light-controlled dehumidification integrated intelligent air-conditioning unit provided by the present invention is provided with a light sensing unit and a humidity sensing unit, wherein during the daytime, the light sensing unit controls the indoor light source through a relay to achieve supplementary light as a simple and effective dehumidification method, and at night, the indoor air humidity is monitored at all times through a humidity sensor, and two condensers with independent refrigerant circuits are respectively arranged at different positions. When dehumidification is needed, the refrigerant circuit is switched to make the position The condenser at the air outlet is turned on, so that the water condenses when the gas passes through the evaporator to obtain a dry dehumidification, and then enters the condenser for secondary heating and drying to achieve the effect of repeated dehumidification. The dehumidification effect is remarkable. When the air humidity decreases, the output end of the reversing mechanism 70 is reset to switch to the cooling mode. Combined with the control center, the dehumidification function and the cooling function can be effectively and sensitively converted. The structure is simple, the design is ingenious, and the function is remarkable. At the same time, dehumidification can be achieved only by the air-conditioning unit, and there is no need to set up a dehumidification mechanism separately. The indoor space utilization rate of the greenhouse is effectively improved, the practicality of the air-conditioning unit is enhanced, and it is beneficial to the development of the enterprise.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A light-controlled dehumidification integrated intelligent air-conditioning unit, characterized in that: include: The base is provided with a mounting cavity, and the mounting cavity is provided with an air inlet, an air outlet, a water inlet pipe and a water outlet pipe; A refrigeration device, comprising a boosting mechanism, a refrigerant delivery pipe and an evaporation mechanism, wherein the refrigerant delivery pipe connects the boosting mechanism and the evaporation mechanism to form a circulation structure, the evaporation mechanism is arranged in the installation cavity and located at the output end of the air inlet, the boosting mechanism is used to boost the refrigerant and drive the refrigerant to move along the pipeline into the evaporation mechanism and exchange heat with the gas input into the evaporation mechanism through the air inlet, so that the temperature of the gas after heat exchange through the evaporation mechanism decreases; The dehumidification and refrigeration integrated device comprises a first condensing mechanism, a second condensing mechanism and a reversing mechanism, wherein the first condensing mechanism is arranged in the installation cavity and is connected between the boosting mechanism and the evaporating mechanism through the refrigerant delivery pipe, the input end and the output end of the first condensing mechanism are respectively connected to the water inlet pipe and the water outlet pipe and are used to transfer the heat of the refrigerant in the refrigerant delivery pipe to the fluid of the water outlet pipe, the second condensing mechanism is arranged in the installation cavity and is located at the input end of the air outlet, the second condensing mechanism is connected between the evaporating mechanism and the boosting mechanism through the refrigerant delivery pipe and is used to heat and dry the gas output through the air outlet, the reversing mechanism is arranged at the output end of the boosting mechanism, the input end of the reversing mechanism is connected to the input end pipe of the boosting mechanism, the output end of the reversing mechanism is two groups, and the output ends of the two groups of the reversing mechanisms are respectively connected to the first condensing mechanism and the second condensing mechanism pipes; A light intensity and humidity control device, comprising a light brightness sensor, a light relay, a humidity sensor and a control center, wherein the control center is arranged in the installation cavity, the output end of the light brightness sensor is electrically connected to the control center and is used to monitor the light intensity in the greenhouse to confirm the time period of the greenhouse, the output end of the humidity sensor is electrically connected to the control center and is used to monitor the air humidity in the greenhouse, the output end of the control center is drivingly connected to the reversing mechanism to adjust the on and off states of the two output ends of the reversing mechanism, the input end of the light relay is connected to the output end of the control center, the output end of the light relay is connected to the light source of the greenhouse, and the light relay is used to control the on and off of the light source of the greenhouse to maintain the indoor light intensity of the greenhouse during the daytime stage; An air blowing device, arranged in the installation cavity and located between the air outlet and the second condensing mechanism; Wherein, when the output end of the reversing mechanism is only connected to the first condensing mechanism, the blowing device is used to directly output the low-temperature gas after heat exchange by the evaporation mechanism to the greenhouse; when the output end of the reversing mechanism is only connected to the second condensing mechanism, the blowing device is used to output the low-temperature dry gas after heat exchange by the evaporation mechanism and heating by the second condensing mechanism to the greenhouse; The reversing mechanism is a three-way reversing valve, the input end of the reversing mechanism is connected to the output end pipeline of the boosting mechanism through the refrigerant delivery pipe, and the two output ends of the reversing mechanism are respectively connected to the first condensing mechanism and the second condensing mechanism pipelines through the refrigerant delivery pipe; The air blowing device is a variable frequency fan, and the boosting mechanism is a variable frequency compressor; The evaporation mechanism includes a mounting frame and a fin group. The mounting frame is a through-hole frame structure. The fin group is obliquely arranged in the mounting frame and forms a plurality of inclined passages for condensing moisture in the gas. The refrigerant delivery pipe is reciprocatedly penetrated in the inclined passages to abut against the gas passing through the inclined passages to reduce the gas temperature.

2. The light-controlled dehumidification integrated intelligent air-conditioning unit according to claim 1 is characterized in that: The evaporation mechanism further includes a condensation tray, which is disposed at the bottom of the mounting frame and is used to receive condensed water that is gathered on the fin group and falls due to gravity.

3. The light-controlled dehumidification integrated intelligent air-conditioning unit according to claim 1 is characterized in that: The refrigerant transmission pipe for connecting the first condensing mechanism, the second condensing mechanism and the evaporating mechanism is arranged in a three-way pipe structure, and the first condensing mechanism, the second condensing mechanism and the evaporating mechanism are respectively connected to the pipeline with a one-way valve.

4. The light-controlled dehumidification integrated intelligent air-conditioning unit according to claim 3 is characterized in that: A filter and a throttle valve are arranged in sequence between the first condensing mechanism, the second condensing mechanism and the evaporating mechanism. The filter is used to remove moisture and impurities in the refrigerant, and the throttle valve is used to reduce the pressure of the refrigerant.

5. The light-controlled dehumidification integrated intelligent air-conditioning unit according to claim 3 is characterized in that: A liquid storage device for storing excess refrigerant is provided between the first condensing mechanism, the second condensing mechanism and the evaporating mechanism.

6. The light-controlled dehumidification integrated intelligent air-conditioning unit according to claim 1 is characterized in that: The output end of the water outlet pipe is provided with a three-way pipe structure, and the output end of the water outlet pipe is divided into two groups, and one group of the output ends of the water outlet pipe is provided with a condensation pressure regulating valve for regulating the pressure in the water outlet pipe.

7. A light-controlled dehumidification and refrigeration method, characterized in that: The method is performed by the light-controlled dehumidification integrated intelligent air-conditioning unit according to any one of claims 1 to 6, comprising the following steps: S100: When the greenhouse is in a preset daytime period, the light brightness sensor monitors the light intensity in the greenhouse and feeds back the light intensity data to the control center. The control center determines whether the indoor light intensity is lower than the preset value according to the preset light intensity value. When the indoor light intensity is lower than the preset value, the control center turns on the light source through the light relay to maintain the light intensity in the greenhouse; S200: the output end of the reversing mechanism connected to the second condensing mechanism is closed, the boosting mechanism drives the refrigerant loaded in the refrigerant delivery pipe to increase the pressure and temperature, and the water transported to the first condensing mechanism through the water inlet pipe exchanges heat with the refrigerant in the refrigerant delivery pipe, so that the refrigerant is depressurized and cooled, and the fluid output through the water outlet pipe is heated; S300: The refrigerant delivery pipe delivers low-temperature and low-pressure refrigerant to the evaporation mechanism, the blower device is started, and the gas input into the installation cavity from the air inlet contacts the heat exchange unit of the evaporation mechanism and exchanges heat with the low-temperature and low-pressure refrigerant, the gas temperature is reduced and the gas is delivered from the air outlet to the greenhouse through the blower device, thereby achieving a greenhouse cooling effect; S400: When the greenhouse is in a preset night period, the humidity sensor monitors the air humidity in the greenhouse and feeds back the air humidity data to the control center, and the control center determines whether the indoor air humidity is lower than a preset value according to the preset air humidity; S500: Repeat S400, when the indoor air humidity is lower than the preset air humidity value, the reversing mechanism closes the output end of the first condensing mechanism connected to the reversing mechanism, and opens the output end of the reversing mechanism connected to the second condensing mechanism; S600: the boosting mechanism drives the refrigerant loaded in the refrigerant delivery pipe to increase the pressure and temperature. The refrigerant delivery pipe delivers the high-temperature and high-pressure refrigerant through the second condensing mechanism. The blower blows air. The air passing through the second condensing mechanism exchanges heat with the refrigerant in the refrigerant delivery pipe, so that the refrigerant is depressurized and cooled. The heated air is dried and blown into the greenhouse through the blower. S700: The refrigerant delivery pipe delivers low-temperature and low-pressure refrigerant to the evaporation mechanism, the gas input into the installation cavity from the air inlet contacts the heat exchange unit of the evaporation mechanism and exchanges heat with the low-temperature and low-pressure refrigerant, the moisture of the gas condenses on the heat exchange unit of the evaporation mechanism, and at the same time, the gas temperature is reduced and delivered to the second condensation mechanism to maintain the low-temperature state of the gas before being heated and dried by the second condensation mechanism; the humidity sensor monitors the air humidity in the greenhouse; S800: Repeat S600 to S700. When the indoor air humidity of the greenhouse is lower than the preset air humidity value, the reversing mechanism closes the output end connected to the second condensing mechanism and opens the output end connected to the first condensing mechanism to restore the greenhouse cooling effect.

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