CN114061260A - Humidity control method of refrigeration equipment - Google Patents
Humidity control method of refrigeration equipment Download PDFInfo
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- CN114061260A CN114061260A CN202111461033.2A CN202111461033A CN114061260A CN 114061260 A CN114061260 A CN 114061260A CN 202111461033 A CN202111461033 A CN 202111461033A CN 114061260 A CN114061260 A CN 114061260A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 24
- 241000428533 Rhis Species 0.000 claims abstract description 12
- 230000000737 periodic effect Effects 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000001704 evaporation Methods 0.000 claims description 19
- 230000008020 evaporation Effects 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 16
- 230000014759 maintenance of location Effects 0.000 claims description 7
- 101100121625 Caenorhabditis elegans rhi-1 gene Proteins 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003020 moisturizing effect Effects 0.000 description 14
- 238000001816 cooling Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/067—Evaporator fan units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
- F25D2317/0413—Treating air flowing to refrigeration compartments by purification by humidification
- F25D2317/04131—Control means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/02—Refrigerators including a heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/02—Timing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
Abstract
The invention provides a humidity control method of refrigeration equipment, which comprises the following steps: s1, acquiring a humidifying instruction; s2, after the acquired compartment temperature reaches the set temperature, opening a compartment air door and a driving fan, periodically acquiring a relative humidity value RHin in the compartment at preset time intervals, and calculating dynamic integral humidity RHin in the compartment according to the relative humidity value RHin; s3, closing the compartment air door according to the set dynamic integral humidity RHIS; s4, when the opening signal of the compartment air door is obtained again, calculating the difference value delta H between the last dynamic integral humidity Rpin before the compartment air door is opened and the set periodic integral humidity Rhiz, and setting the duty ratio of the driving fan according to the value of the delta H; the difference value delta H between the last dynamic integral humidity before the next opening of the air door and the set periodic integral humidity is calculated by taking a period from the time when the compartment air door is opened to the time when the air door is opened again, and then the duty ratio of the driving fan is set according to the value of the delta H, so that the humidifying effect is good.
Description
Technical Field
The invention relates to the field of refrigeration appliances, in particular to a humidity control method of refrigeration equipment.
Background
The existing refrigeration equipment is divided into direct cooling type and air cooling type according to different refrigeration modes. For the air-cooled refrigeration equipment, in order to meet the humidity requirement of the storage chamber, the generated water vapor is generally conveyed into the storage chamber by using a driving fan. However, since the duty ratio of the driving fan is constant, it is impossible to adaptively change the driving fan according to the change of the ambient temperature and the external factors such as the sealing performance of the refrigerating apparatus itself, and thus the humidifying effect is poor.
Disclosure of Invention
The invention aims to provide a humidity control method of a refrigerating device, which can adaptively adjust the duty ratio of a driving fan according to external factors such as ambient temperature, self sealing performance and the like.
In order to achieve one of the above objects, an embodiment of the present invention provides a humidity control method for a refrigeration apparatus, including the steps of:
s1, acquiring a humidifying instruction;
s2, after the acquired compartment temperature reaches the set temperature, opening a compartment air door and a driving fan, periodically acquiring a relative humidity value RHin in the compartment at preset time intervals, and calculating dynamic integral humidity RHin in the compartment according to the relative humidity value RHin;
s3, closing the compartment air door according to the set dynamic integral humidity RHIS;
s4, when the opening signal of the compartment air door is obtained again, calculating the difference value delta H between the last dynamic integral humidity Rpin before the compartment air door is opened and the set periodic integral humidity Rhiz, and setting the duty ratio of the driving fan according to the value of the delta H.
As a further improvement of the embodiment of the present invention, the refrigeration equipment includes a refrigeration system, the refrigeration system includes a compressor, and the humidification instruction in step S1 specifically refers to: when the environment temperature is higher than the set temperature, the shutdown signal of the compressor is sent after the temperature regulation of the compartment is completed through the refrigerating system.
As a further improvement of an embodiment of the present invention, the refrigeration system further includes an evaporation fan disposed in the air duct, and the driving fan in steps S2 and S4 is the aforementioned evaporation fan.
As a further improvement of the embodiment of the present invention, the refrigeration equipment further includes a low temperature compensation system, the low temperature compensation system includes a heating wire disposed in the air duct, and the humidification instruction in step S1 specifically refers to: and when the ambient temperature is lower than the set temperature, the closing signal of the heating wire is sent after the temperature of the compartment is adjusted by the low-temperature compensation system.
As a further improvement of an embodiment of the present invention, the refrigeration equipment further includes a moisture retention fan and a water box, and the driving fan in steps S2 and S4 is the moisture retention fan.
As a further improvement of the embodiment of the present invention, the refrigeration equipment includes a first compartment and a second compartment, and in the step S1, when the ambient temperature is lower than the set temperature, the second compartment is temperature-adjusted by the low temperature compensation system before the first compartment.
As a further improvement of the embodiment of the present invention, the moisture retention fan and the water box are both connected to the second compartment, and in the step S3, after the second compartment damper is closed according to the set dynamic integrated humidity RHis, the first compartment damper and the evaporation fan are opened to periodically obtain the relative humidity RHin in the first compartment at the preset time interval, and the dynamic integrated humidity RHin in the first compartment is calculated according to the relative humidity RHin, and then the first compartment damper is closed according to the set dynamic integrated humidity RHis.
As a further improvement of an embodiment of the present invention, the refrigeration apparatus includes a humidity sensor provided in the compartment, and in the step S2, the relative humidity value rhin in the compartment is monitored by the humidity sensor every 10 seconds.
As a further improvement of an embodiment of the present invention, the method for calculating the dynamic integrated humidity RHin in step S2 is as follows:
when the humidity sensor detects that the first relative humidity value is rhi1, the second relative humidity value is rhi2 and the nth relative humidity value is RHin from the opening of the compartment air door, the dynamic integrated humidity RHin is (rhi1+ rhi2+ … + RHin)/(1+2+ … + n).
As a further improvement of an embodiment of the present invention, in step S4, the duty ratio of the driving motor is decreased proportionally with the increase of Δ H.
Compared with the prior art, in the embodiment of the invention, a period is set from the time when the compartment air door is opened to the time when the compartment air door is opened again, the difference value delta H between the last dynamic integrated humidity before the next opening of the air door and the set periodic integrated humidity is calculated, and then the duty ratio of the driving fan is set according to the value of the delta H, so that the humidification device is suitable for different use environments and equipment, and has good humidification effect.
Drawings
FIG. 1 is a schematic cross-sectional view of a refrigeration unit in accordance with a preferred embodiment of the present invention;
fig. 2 is a flow chart of humidification control of the refrigeration apparatus of fig. 1.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
It will be understood that terms such as "upper," "lower," "outer," "inner," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. As in the present invention, for convenience of description, in a normal use of the refrigerator, a direction toward the ground is downward and a direction away from the ground is upward; the direction parallel to the ground is a horizontal direction, and the direction vertical to the ground is a vertical direction; the side close to the user is the front side, and the side far away from the user is the back side.
Referring to fig. 1, a refrigerating apparatus according to a preferred embodiment of the present invention may be configured as a refrigerator, a vertical refrigerator, a wine chest, a freezer, or other refrigerating apparatuses, and is particularly suitable for a wine storage cabinet.
Specifically, the refrigeration apparatus includes a cabinet 10, a refrigeration system, and a low temperature compensation system. The housing 10 defines a storage compartment including a first compartment 21, a second compartment 23 and a third compartment 25. Of course, the storage chamber can be provided with less than three chambers or more than three chambers according to the requirement.
Wherein, the temperature value of the first chamber 21 is adjustable within the range of 15-25 ℃, and the relative humidity value of the first chamber 21 is adjustable within the range of 50-70% rh. The first compartment 21 is therefore often used for short-term storage of liquor, also called the drinkable zone.
The temperature value of the compartment of the second compartment 23 is adjustable within the range of 10-20 ℃, and the relative humidity value of the second compartment 23 is adjustable within the range of 50-70% rh. The second compartment 23 is therefore often used for long-term storage of liquor, also called cellar.
The temperature value of the third chamber 25 is adjustable within the range of 10-20 ℃, and the relative humidity value of the third chamber 25 is lower than 45% rh. Therefore, the third compartment 25 is often used for storing tea, also called the treasure area.
In addition, a temperature sensor for detecting a temperature value and a humidity sensor for detecting a relative humidity value are provided in each of the first compartment 21, the second compartment 23, and the third compartment 25.
Furthermore, the refrigeration equipment further comprises an air duct arranged in the storage chamber, and the air duct is communicated with each chamber of the storage chamber. And independent air inlet ducts are arranged between the air duct and each compartment, namely a first air duct 31 communicated with the first compartment 21, a second air duct 33 communicated with the second compartment 23 and a third air duct 35 communicated with the third compartment 25.
Specifically, refrigeration plant is still including setting up first air door 41 in first wind channel 31, setting up second air door 43 in second wind channel 33, setting up third air door 45 in third wind channel 35, can realize that a plurality of rooms of storing room are independent accuse temperature each other to the leakproofness between the room is further improved.
Further, when the ambient temperature is higher than the set temperature of the storage chamber, the refrigerating system supplies cold energy to the corresponding storage chamber, so that the storage chamber reaches the set temperature.
Specifically, the refrigeration system includes a compressor 50, a condenser, a capillary tube, an evaporator 60, etc., which are connected by a pipe to form a refrigeration circuit. The evaporator 60 is disposed in the air duct, and transmits the cold energy to the corresponding storage compartment through the first air duct 31, the second air duct 33, and the third air duct 35.
Specifically, the refrigeration equipment further includes an evaporation fan 70 disposed in the air duct, and the evaporation fan can transport the cold energy generated by the evaporator 60 to each compartment. Also, due to the arrangement of the first damper 41, the second damper 43, and the third damper 45, the cooling capacity obtained in the first compartment 21, the second compartment 23, and the third compartment 25 can be precisely controlled.
Further, when the ambient temperature is lower than the set temperature of the storage chamber, the low-temperature compensation system supplies heat to the corresponding storage chamber so that the storage chamber reaches the set temperature.
Specifically, the low temperature compensation system includes a heating wire 80 disposed in the air duct, and the heating wire 80 can generate heat after being started, and the heat is transferred to the corresponding storage chamber through the evaporation fan 70. Moreover, due to the arrangement of the first, second and third dampers 41, 43, 45, the amount of heat obtained in the first, second and third compartments 21, 23, 25 can be accurately controlled.
The heating wire 80 in this embodiment is preferably a PTC heating wire, which is called a Positive Temperature Coefficient (PTC) and is suitable for low-power low-Temperature electric heating equipment.
Further, refrigeration plant still includes moisturizing fan 90 and water box 100, can be used for carrying out the humidification operation for the storing compartment, through moisturizing fan 90's rotation promptly, accelerates the evaporation of the liquid water in the water box 100, increases the humidity of storing compartment, makes the relative humidity value of storing compartment satisfy the requirement. Wherein, a liquid level sensor is arranged in the water box 100 for reminding a user of adding water.
In this embodiment, because the second compartment 23 is used for storing white spirit for a long time, and the requirement for humidity is high, the moisturizing fan 90 and the water box 100 are both disposed in the second compartment 23, so that the moisturizing fan 90 and the water box 100 are used for humidifying the second compartment 23 independently. Of course, the moisturizing fan 90 and the water box 100 may be used to humidify the first compartment 21, the second compartment 23, and the third compartment 25 at the same time according to the storage needs of the compartments, or the moisturizing fan 90 and the water box 100 may be provided in each of the first compartment 21, the second compartment 23, and the third compartment 25.
The specific embodiment of the invention also relates to a humidification control method of the refrigeration equipment, and the structure and the function of the refrigeration equipment are as described above, and are not described again here.
Referring to fig. 2, the refrigeration apparatus provided in the above embodiment further relates to a humidification control method for the refrigeration apparatus, including the steps of:
s1, acquiring a humidifying instruction;
s2, after the acquired compartment temperature reaches the set temperature, opening a compartment air door and a driving fan, periodically acquiring a relative humidity value RHin in the compartment at preset time intervals, and calculating dynamic integral humidity RHin in the compartment according to the relative humidity value RHin;
s3, closing the compartment air door according to the set dynamic integral humidity RHIS;
s4, when the opening signal of the compartment air door is obtained again, calculating the difference value delta H between the last dynamic integral humidity Rpin before the compartment air door is opened and the set periodic integral humidity Rhiz, and setting the duty ratio of the driving fan according to the value of the delta H.
In this embodiment, a period from the time when the compartment damper is opened to the time when the compartment damper is opened again is used as one period, a difference Δ H between the period integrated humidity (i.e., the last dynamic integrated humidity RHin before the next opening of the damper) in the period and the set period integrated humidity RHiz is calculated, and then the duty ratio of the driving fan is set according to the value of Δ H, so that the humidification device is suitable for different use environments and devices, and is good in humidification effect and low in energy consumption.
In step S1, the refrigeration equipment obtains a compartment humidification instruction according to the humidity requirement of the storage compartment.
In the step S2, whether the temperature in the corresponding storage compartment reaches the set temperature is detected by a temperature sensor arranged in the compartment, and if not, the process returns to S1; if yes, opening the compartment air door and driving the fan. Namely, the humidifying operation can be carried out only after the temperature of the storage chamber reaches the set requirement.
Further, in step S2, the refrigeration apparatus starts with the compartment damper being opened for humidification, and acquires the opening signal of the compartment damper again as a cycle, and continuously acquires the relative humidity RHin in the compartment throughout the cycle, and continuously calculates the dynamic integrated humidity RHin in the compartment.
Specifically, the refrigeration apparatus includes a humidity sensor disposed in the compartment, and in step S2, the relative humidity rhin in the compartment is monitored every 10 seconds by the humidity sensor.
In this embodiment, the humidity sensor disposed in the compartment detects the rh value rhin in the storage compartment, and the humidity sensor continuously detects the rh value rhin at a predetermined time interval.
Specifically, the method for calculating the dynamic integrated humidity RHin in step S2 is as follows: when the humidity sensor detects that the first relative humidity value is rhi1, the second relative humidity value is rhi2 and the nth relative humidity value is RHin from the opening of the compartment air door, the dynamic integrated humidity RHin is (rhi1+ rhi2+ … + RHin)/(1+2+ … + n).
In this embodiment, the dynamic integrated humidity RHin is actually the average humidity value in the storage compartment when the compartment is located in the nth compartment, so that the dynamic integrated humidity RHin more accurately represents the humidification process of the compartment.
Further, in the step S3, if the dynamic integrated humidity RHin reaches the set dynamic integrated humidity RHis, the compartment damper is closed; if not, the process returns to S2. Due to the fact that the sealing structure of the refrigerating equipment or other factors influencing the humidity of the storage compartment of the refrigerating equipment are different, different equipment sets different set dynamic integral humidity RHIs.
Further, in step S4, when the temperature in the compartment changes due to temperature changes in the compartment during the humidification process or due to changes in the temperature in the compartment caused by the ambient temperature and the sealing property of the refrigeration equipment, and the temperature in the compartment cannot satisfy the set temperature, the refrigeration equipment may obtain the opening signal of the compartment damper again. At this time, the dynamic integrated humidity RHin of the last time before the compartment damper is opened is recorded, and the dynamic integrated humidity RHin at this time is the average humidity value of the whole humidification period, that is, the actual value of the cycle integrated humidity of this humidification period.
Further, in step S4, the difference Δ H between the last dynamic integrated humidity RHin before the compartment door was opened and the set periodic integrated humidity RHiz is calculated. Due to the fact that the sealing structure of the refrigerating equipment or other factors influencing the humidity of the storage compartment of the refrigerating equipment are different, different equipment sets different set period integral humidity Rhiz.
Further, in step S4, it can be indirectly obtained whether the humidification efficiency of the current period meets the set humidification efficiency through the difference Δ H between the average humidity value of the current humidification period (i.e., the last dynamic integrated humidity RHin before the compartment damper is opened) and the set period integrated humidity RHiz, and if not, corresponding adjustment can be performed in the next humidification period. Moreover, because the set periodic integrated humidity RHI is a constant value which is kept unchanged, each humidification period is compared with the set periodic integrated humidity RHI, and the adjustment of the humidification efficiency is more accurate. Moreover, the humidifying efficiency can be changed by adjusting the duty ratio of the driving fan.
Specifically, in step S4, the duty ratio of the driving fan is adjusted according to Δ H, and the duty ratio of the driving motor decreases proportionally with the increase of Δ H. In this embodiment, when the calculated Δ H is greater than 0, that is, the last dynamic integrated humidity RHin before the compartment damper is opened is greater than the periodic integrated humidity RHiz, the duty ratio of the driving fan should be decreased, and the duty ratio of the driving fan is decreased proportionally by the corresponding value as Δ H is increased. On the contrary, when the calculated Δ H is less than 0, i.e., the last dynamic integrated humidity RHin before the compartment door is opened is less than the periodic integrated humidity RHiz, the duty ratio of the driving fan should be increased, and the duty ratio of the driving fan should be increased in equal proportion by the corresponding value as the Δ H is decreased by the corresponding value. In addition, when the calculated Δ H is 0, that is, the dynamic integrated humidity RHin of the last time before the compartment damper is opened is the periodic integrated humidity RHiz, the duty ratio of the driving fan is kept constant.
Wherein, after the duty cycle increase of drive fan, the rotational speed of drive fan can obtain promoting to accelerate the flow of steam, promote humidification efficiency.
Further, the refrigeration equipment includes a refrigeration system, the refrigeration system includes a compressor 50, and the humidification instruction in step S1 specifically refers to: and when the ambient temperature is higher than the set temperature, stopping the compressor 50 after the temperature of the compartment is adjusted by the refrigerating system.
In this embodiment, since the ambient temperature is higher than the set temperature of the compartment, the compartment needs to be cooled by the refrigeration system to reach the set temperature. When the compartment reaches the set temperature, the refrigeration system finishes the cooling operation and turns off the compressor, so that the humidifying operation can be carried out. Therefore, the compressor stop signal acquired by the refrigeration equipment at this time is the humidification instruction, and the refrigeration equipment starts humidification.
Specifically, the refrigeration system further includes an evaporation fan 70 disposed in the air duct, and the driving fan in step S2 and step S4 is the aforementioned evaporation fan 70.
In this embodiment, because ambient temperature is greater than the settlement temperature, after the room temperature reached the settlement temperature through refrigerating system cooling, closed compressor 50 this moment, evaporimeter 60 surface formed the comdenstion water, carry to the room through evaporating fan 70 in, utilize evaporimeter 60 surface to form the comdenstion water and current evaporating fan 70 carries out the humidification operation to the room, when having practiced thrift the water resource, need not extra humidification subassembly and can accomplish the humidification, reduced production and use cost.
Specifically, after the compartments are cooled, the corresponding compartment air doors and the compressor 50 are closed, the compartment air doors and the evaporation fan 70 which need to be humidified are opened, the evaporation fan 70 is used for accelerating evaporation of condensed water formed on the surface of the evaporator 60, and the condensed water is converted into water vapor and then is conveyed into the corresponding compartments. In step S4, the duty ratio of the evaporation fan 70 may be dynamically adjusted according to the value of Δ H.
Further, the refrigeration equipment further comprises a low-temperature compensation system, the low-temperature compensation system comprises a heating wire 80 arranged in the air duct, and the humidification instruction in the step S1 specifically means: and when the ambient temperature is lower than the set temperature, the closing signal of the heating wire 80 is sent after the temperature of the compartment is adjusted by the low-temperature compensation system.
In this embodiment, since the ambient temperature is lower than the set temperature of the compartment, the temperature of the compartment to reach the set temperature needs to be raised by the low-temperature compensation system. When the compartment reaches the set temperature, the low temperature compensation system completes the temperature rise operation, and the heating wire 80 is closed, so that the humidification operation can be performed. Therefore, the closing signal of the heating wire 80 acquired by the refrigeration equipment at this time is the humidification instruction, and the refrigeration equipment starts humidification.
Specifically, the refrigeration equipment further comprises a moisturizing fan 90 and a water box 100, and the driving fan in the steps S2 and S4 is the moisturizing fan 90.
In this embodiment, because ambient temperature is less than the set temperature, after the room temperature reaches the set temperature through the low temperature compensation system intensification, close heater strip 80 this moment, carry the steam that produces in water box 100 to the room through moisturizing fan 90 in to satisfy the requirement of room temperature and humidity under the low ambient temperature.
Specifically, when the temperature in the compartment is detected to be lower than the set temperature, the compressor 50 is closed, the heating wire 80 is started, after the compartment is heated, the heating wire 80 is closed, the compartment air door needing humidification and the moisturizing fan 90 are opened, and the moisture formed in the water box 100 is conveyed to the corresponding compartment by the moisturizing fan 90. In step S4, the duty ratio of the moisturizing blower 90 may be dynamically adjusted according to the value Δ H.
Further, the refrigeration equipment includes a first compartment 21 and a second compartment 23, and in the step S1, when the ambient temperature is lower than the set temperature, the second compartment 23 is temperature-adjusted by the low temperature compensation system before the first compartment 21.
In this embodiment, the second compartment 23 is used for storing white spirit for a long time, and thus has a high requirement on temperature. When the ambient temperature is lower than the set temperature, when it is detected that the compartment temperature of the second compartment 23 is lower than the set temperature, the compressor 50 is directly turned off, and the heating wire 80 is turned on, even if the first compartment 21 or other compartments still need to be cooled by the compressor. Also, when the heating wire 80 is completely turned off for warming, the humidifying operation is first performed for the second compartment 23.
In addition, when the ambient temperature is higher than the set temperature, the second damper 43 is preferentially opened and the first damper 41 or other dampers are closed, and the temperature and humidity regulation of the second compartment 23 is preferentially performed.
Further, the moisture retention blower 90 and the water box 100 are both connected to the second compartment 23, in the step S3, after the air door of the second compartment 23 is closed according to the set dynamic integrated humidity RHis, the air door of the first compartment 21 and the evaporation blower 70 are opened, the relative humidity RHin in the first compartment is periodically obtained at the preset time interval, the dynamic integrated humidity RHin in the first compartment is calculated according to the relative humidity RHin, and then the air door of the first compartment 21 is closed according to the set dynamic integrated humidity RHis.
In this embodiment, the moisturizing blower 90 and the water box 100 are connected to the second compartment 23 and dedicated for the moisturizing operation of the second compartment 23. Therefore, after the humidifying operation of the second compartment 23 is completed, the second damper 43 is closed, and the first damper 41 or the damper of the other compartment is opened, so that the humidifying operation of the first compartment 21 or the other compartment is performed using the condensed water formed on the surface of the evaporator 60. The second chamber 23 specialization requirement is met, meanwhile, the humidification requirements of other chambers are met, and the production and use cost is reduced to the maximum extent.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. A humidity control method for a refrigeration apparatus, comprising the steps of:
s1, acquiring a humidifying instruction;
s2, after the acquired compartment temperature reaches the set temperature, opening a compartment air door and a driving fan, periodically acquiring a relative humidity value RHin in the compartment at preset time intervals, and calculating dynamic integral humidity RHin in the compartment according to the relative humidity value RHin;
s3, closing the compartment air door according to the set dynamic integral humidity RHIS;
s4, when the opening signal of the compartment air door is obtained again, calculating the difference value delta H between the last dynamic integral humidity Rpin before the compartment air door is opened and the set periodic integral humidity Rhiz, and setting the duty ratio of the driving fan according to the value of the delta H.
2. The humidity control method of a refrigeration device according to claim 1, wherein the refrigeration device includes a refrigeration system, the refrigeration system includes a compressor, and the humidification instruction in step S1 specifically refers to: when the environment temperature is higher than the set temperature, the shutdown signal of the compressor is sent after the temperature regulation of the compartment is completed through the refrigerating system.
3. The humidity control method of a refrigerating apparatus as claimed in claim 2, wherein the refrigerating system further comprises an evaporation fan disposed in the air duct, and the driving fan in the steps S2 and S4 is the evaporation fan.
4. The humidity control method of a refrigeration device according to claim 3, wherein the refrigeration device further includes a low temperature compensation system, the low temperature compensation system includes a heating wire disposed in the air duct, and the humidification instruction in step S1 specifically refers to: and when the ambient temperature is lower than the set temperature, the closing signal of the heating wire is sent after the temperature of the compartment is adjusted by the low-temperature compensation system.
5. The humidity control method of a refrigerating apparatus as claimed in claim 4, wherein the refrigerating apparatus further comprises a moisture retention fan and a water box, and the driving fan in the steps S2 and S4 is the moisture retention fan.
6. The humidity control method of a refrigeration device as claimed in claim 5, wherein the refrigeration device comprises a first compartment and a second compartment, and in the step S1, when the ambient temperature is lower than the set temperature, the second compartment is temperature-adjusted by the low temperature compensation system before the first compartment.
7. The humidity control method of a refrigerating apparatus as claimed in claim 6, wherein the moisture retention fan and the water box are both connected to the second compartment, and in the step S3, after the second compartment damper is closed according to the set dynamic integrated humidity RHis, the first compartment damper and the evaporation fan are opened to periodically obtain the relative humidity RHin in the first compartment at a preset time interval, and the dynamic integrated humidity RHin in the first compartment is calculated according to the relative humidity RHin, and then the first compartment damper is closed according to the set dynamic integrated humidity RHis.
8. The humidity control method of a refrigerating apparatus as claimed in claim 1, wherein said refrigerating apparatus includes a humidity sensor provided in the compartment, and in said step S2, a relative humidity value rhin in the compartment is monitored by said humidity sensor every 10 seconds.
9. The humidity control method of a refrigerating apparatus as set forth in claim 1, wherein the dynamic integrated humidity RHin calculation method in the step S2 is as follows:
when the humidity sensor detects that the first relative humidity value is rhi1, the second relative humidity value is rhi2 and the nth relative humidity value is RHin from the opening of the compartment air door, the dynamic integrated humidity RHin is (rhi1+ rhi2+ … + RHin)/(1+2+ … + n).
10. The humidity control method of a refrigerating apparatus as set forth in claim 1, wherein in said step S4, the duty ratio of said driving motor is decreased in equal proportion to the increase of the Δ H value.
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| CN202111461033.2A CN114061260A (en) | 2021-11-30 | 2021-11-30 | Humidity control method of refrigeration equipment |
| PCT/CN2022/120573 WO2023098247A1 (en) | 2021-11-30 | 2022-09-22 | Humidity control method for refrigeration device |
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| CN202111461033.2A CN114061260A (en) | 2021-11-30 | 2021-11-30 | Humidity control method of refrigeration equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117270613A (en) * | 2023-11-23 | 2023-12-22 | 广东凯得智能科技股份有限公司 | Humidification control method, humidification control device, intelligent wine cabinet and storage medium |
| WO2024016840A1 (en) * | 2022-07-22 | 2024-01-25 | 青岛海尔特种电冰柜有限公司 | Humidity control method for refrigeration device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116629285B (en) * | 2023-07-24 | 2023-10-13 | 长沙智医云科技有限公司 | Management method for RFID temperature importing intelligent refrigerator |
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| US9004369B2 (en) * | 2010-03-24 | 2015-04-14 | Whirlpool Corporation | Systems and methods for multi-sense control algorithm for atomizers in refrigerators |
| CN102654298B (en) * | 2012-05-21 | 2014-06-18 | 徐兴江 | Intelligent enthalpy difference control energy-saving air conditioner and control method thereof |
| CN202835672U (en) * | 2012-08-27 | 2013-03-27 | 长沙市比亚迪汽车有限公司 | Heating air conditioning system and car |
| CN103673107B (en) * | 2013-12-13 | 2017-04-12 | Tcl空调器(中山)有限公司 | Air conditioner and control method and device thereof |
| CN107477738A (en) * | 2017-08-31 | 2017-12-15 | 四川酷比特科技有限公司 | Low-temp radiating type idle call fresh air dehumidifying system and its control method |
| CN107388691B (en) * | 2017-09-11 | 2019-11-22 | 合肥华凌股份有限公司 | The control method and system of wind cooling refrigerator, freezing chamber humidification |
| CN109760704B (en) * | 2019-01-16 | 2020-09-11 | 中车青岛四方机车车辆股份有限公司 | In-vehicle humidity control method for railway vehicle |
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2021
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024016840A1 (en) * | 2022-07-22 | 2024-01-25 | 青岛海尔特种电冰柜有限公司 | Humidity control method for refrigeration device |
| CN117270613A (en) * | 2023-11-23 | 2023-12-22 | 广东凯得智能科技股份有限公司 | Humidification control method, humidification control device, intelligent wine cabinet and storage medium |
| CN117270613B (en) * | 2023-11-23 | 2024-02-20 | 广东凯得智能科技股份有限公司 | Humidification control method, humidification control device, intelligent wine cabinet and storage medium |
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| WO2023098247A1 (en) | 2023-06-08 |
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