CN112682912A - Control method of evaporative ice storage air conditioner - Google Patents
Control method of evaporative ice storage air conditioner Download PDFInfo
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- CN112682912A CN112682912A CN202011506595.XA CN202011506595A CN112682912A CN 112682912 A CN112682912 A CN 112682912A CN 202011506595 A CN202011506595 A CN 202011506595A CN 112682912 A CN112682912 A CN 112682912A
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Abstract
The invention discloses a control method of an evaporative ice storage air conditioner, which comprises the following steps: the control device acquires the set blowing control precision T0, the set blowing temperature T1 and the set ice storage box temperature T2; the control device controls the ice water regulating valve, the air supply mechanism, the sterilization mechanism and the water return mechanism to start working and obtains a real-time air supply temperature T11 and a real-time water temperature T21 of the ice storage box; when T21 is larger than T2, the control device outputs a water drainage and ice change prompt; when T21 is not less than T2 and T1-T0 is not less than T11 is not less than T1+ T0, the opening degree of the ice water regulating valve is kept unchanged; when T21 is less than or equal to T2 and T11 is more than T1+ T0, the opening degree of the ice water regulating valve is increased; when T21 is not more than T2 and T11 is less than T1-T0, reducing the opening degree of the ice water regulating valve; according to the control method provided by the invention, the control device obtains the real-time water temperature of the ice storage box and adjusts the working state of the ice water regulating valve according to the comparison result of the real-time water temperature and the set temperature of the ice storage box, so that the cold energy of the molten water in the ice storage box is fully utilized, and the energy utilization rate of the ice cold storage air conditioner is improved.
Description
Technical Field
The invention relates to the technical field of ice storage air conditioners, in particular to a control method of an evaporative ice storage air conditioner.
Background
The existing ice cold storage air conditioner stores cold energy by using low-price electric ice making and cold storage at the off-peak time of a power grid at night, and ice is melted into water when the power consumption peak time is in the daytime, so that the absorbed heat and a refrigerating unit supply cold together; the existing ice storage air conditioner has the problems of heavy weight, inconvenient movement, poor use experience and the like.
In addition, in the existing partial ice storage air conditioner, the heat exchange process is realized by directly contacting external air with ice, and the air output by the ice storage air conditioner may carry broken ice and water drops, so that the use experience of a user is reduced; and when the ice is melted into water, the melted water is generally directly discharged out of the ice storage air conditioner and cannot be reused, so that the problem that the energy consumption of the whole ice storage air conditioner is high is caused.
It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a control method of an evaporative ice storage air conditioner, which can fully utilize the cold quantity of the melted water in a refrigerator, thereby improving the energy utilization rate of the ice storage air conditioner.
In order to achieve the purpose, the invention adopts the following technical scheme:
a control method of an evaporative ice-storage air conditioner comprises a shell, and a control device, an air supply mechanism, a refrigerator, an ice water regulating valve, a membrane type water distribution device, a water storage tank, a sterilization mechanism and a water return mechanism which are arranged in the shell, wherein the refrigerator is connected with the membrane type water distribution device through the ice water regulating valve, the water storage tank is arranged below the membrane type water distribution device, and the water storage tank is communicated with an ice storage tank through the water return mechanism; the air supply side of the air supply mechanism is provided with an air supply temperature sensor, the ice storage box is internally provided with a water temperature sensor, and the air supply mechanism, the ice water regulating valve, the sterilization mechanism, the water return mechanism, the air supply temperature sensor and the water temperature sensor are respectively and electrically connected with the control device; the control method comprises the following steps:
the control device acquires the set blowing control precision T0, the set blowing temperature T1 and the set ice storage box temperature T2;
the control device controls the ice water regulating valve, the air supply mechanism, the sterilization mechanism and the water return mechanism to start working;
the control device acquires real-time air supply temperature T11 fed back by the air supply temperature sensor and real-time water temperature T21 of the ice storage box fed back by the water temperature sensor in real time;
when T21 is larger than T2, the control device outputs a water drainage and ice change prompt;
when T21 is not less than T2 and T1-T0 is not less than T11 is not less than T1+ T0, the control device controls the opening degree of the ice water regulating valve to be kept unchanged;
when T21 is less than or equal to T2 and T11 is more than T1+ T0, the control device controls the opening degree of the ice water regulating valve to be increased;
when T21 is less than or equal to T2 and T11 is less than T1-T0, the control device controls the opening degree of the ice water reducing adjusting valve.
In the control method of the evaporative ice-storage air conditioner, the ice-storage air conditioner further comprises an operation panel, the operation panel is arranged on the shell and is electrically connected with the control device, and the control device obtains set air supply control precision T0, set air supply temperature T1 and set temperature T2 of the ice storage box, and the control method specifically comprises the following steps:
the control device obtains the set blowing control precision T0, the set blowing temperature T1 and the ice storage box set temperature T2 through the operation panel.
In the control method of the evaporative ice cold storage air conditioner, the air supply mechanism comprises a plurality of fans arranged in the shell and a plurality of air supply outlets arranged on the shell, the fans correspond to the air supply outlets one by one, and the fans are electrically connected with the control device; when T21 is less than or equal to T2 and T11 is more than T1+ T0, the control device controls the opening degree of the ice water regulating valve to be increased, and the method further comprises the following steps:
the control device controls the increase of the starting number of the fans or controls the increase of the rotating speed of the started fans.
In the control method of the evaporative ice storage air conditioner, when the T21 is not more than T2 and the T11 is more than T1-T0, the control device controls to reduce the opening degree of the ice water regulating valve, and the method further comprises the following steps:
the control device controls to reduce the number of the started fans or controls to reduce the rotating speed of the started fans.
In the control method of the evaporative ice storage air conditioner, the control method further comprises the following steps:
the operation panel feeds back the air supply outlet selected by the user to the control device;
and the control device controls the corresponding fan to be opened according to the air supply outlet information fed back by the operation panel.
In the control method of the evaporative ice storage air conditioner, an air inlet temperature sensor is arranged on the air inlet side of the shell, and the control method further comprises the following steps:
the control device obtains the refrigeration set temperature T3 fed back by the operation panel;
the control device obtains the real-time inlet air temperature T31 fed back by the inlet air temperature sensor;
when T31 is more than or equal to T3, the control device calculates the sum and difference between air supply control precision T0 and set air supply temperature T1, the control device obtains real-time air supply temperature T11 fed back by the air supply temperature sensor and real-time water temperature T21 of the ice storage box fed back by the water temperature sensor in real time, and adjusts the working state of the ice storage air conditioner according to the comparison result between the real-time water temperature T21 and the set temperature T2 of the ice storage box and the comparison result between the real-time air supply temperature T11 and the difference and the sum respectively;
when T31 < T3, the control device controls the ice storage air conditioner to be in a standby state.
In the control method of the evaporative ice storage air conditioner, the control method further comprises the following steps:
the control device acquires the refrigeration limit temperature T32 fed back by the operation panel;
when T31 is more than or equal to T32 and less than T3, the control device controls the ice storage air conditioner to be adjusted to the ventilation mode, controls the ice water regulating valve to stop working and controls the working state of the air supply mechanism to be kept unchanged;
when T31 < T32, the control device controls the ice storage air conditioner to be in a standby state.
In the control method of the evaporative ice storage air conditioner, the control method further comprises the following steps:
the control device obtains a drying air supply temperature difference T4 and a fan delay time T fed back by the operation panel;
when the control device receives a control instruction of stopping the evaporative ice cold storage air conditioner, the control device controls the ice water regulating valve to be closed, and calculates the difference value between the real-time air supply temperature T11 fed back by the air supply temperature sensor and the real-time air inlet temperature T31 fed back by the air inlet temperature sensor;
if T31-T11 is more than T4, the control device controls the working states of the sterilizing mechanism and the air supply mechanism to be kept unchanged;
if T31-T11 is not more than T4, the control device controls the killing mechanism to stop working, and controls the air supply mechanism to stop working after T time.
In the control method of the evaporative ice storage air conditioner, the water return mechanism comprises a water return pump electrically connected with the control device, and the water storage tank is connected with the ice storage tank through the water return pump; a first liquid level detector is arranged in the water storage tank and electrically connected with the control device, and the control method further comprises the following steps:
when the first real-time water level value fed back by the first liquid level detector is greater than or equal to a starting liquid level preset in the control device, the control device controls the water return pump to start working;
when the first real-time water level value fed back by the first liquid level detector is smaller than or equal to a stop liquid level preset in the control device, the control device controls the water return pump to stop working.
In the control method of the evaporative ice storage air conditioner, a second liquid level detector is further arranged in the water storage tank and electrically connected with the control device, and the control method further comprises the following steps:
when the second real-time water level value fed back by the second liquid level detector is greater than or equal to the maximum liquid level value preset in the control device, the control device controls the ice water regulating valve to be closed;
and when the second real-time water level value fed back by the second liquid level detector is less than or equal to a liquid level reset value preset in the control device, the control device controls the ice water regulating valve to be opened.
Has the advantages that:
the invention provides a control method of an evaporative ice storage air conditioner, which adjusts the opening degree of an ice water adjusting valve by detecting the real-time water temperature of the melted water in a refrigerator and according to the comparison result between the real-time water temperature and the set temperature of the refrigerator and the comparison result between the real-time air supply temperature and the set air supply temperature, thereby adjusting the heat exchange effect of the ice storage air conditioner, namely realizing the adjustment of the working state of the ice storage air conditioner; the membrane type water distribution device can fully utilize the cold energy of the molten water to cool the air, thereby improving the energy utilization rate of the ice storage air conditioner and reducing the energy consumption of the whole ice storage air conditioner.
Drawings
FIG. 1 is a first logic flow diagram of a control method provided by the present invention;
FIG. 2 is a second logic flow diagram of the control method provided by the present invention;
FIG. 3 is a third logic flow diagram of a control method provided by the present invention;
FIG. 4 is a fourth logic flow diagram of a control method provided by the present invention;
FIG. 5 is a fifth logic flow diagram of a control method provided by the present invention;
FIG. 6 is a sixth logic flow diagram of the control method provided by the present invention;
fig. 7 is a schematic view of the internal structure of the evaporative ice storage air conditioner provided by the invention.
Description of the main element symbols: the system comprises a shell 1, a universal wheel 11, an ice water discharge port 12, an air inlet temperature sensor 13, an air supply temperature sensor 14, an air supply temperature sensor 2, a control device 3, a power supply device 4, an air supply mechanism 41, a fan 42, an air pipe joint 42, an air supply port 43, an air storage box 51, an ice adding cover 52, a water temperature sensor 53, an ice water regulating valve 6, a water return pump 7, a membrane type water distribution device 8, an ultraviolet sterilizing lamp 81, an electronic dedusting and sterilizing filter 82, a water storage box 9, a first liquid level detector 91 and a second liquid level detector 92.
Detailed Description
The invention provides a control method of an evaporative ice storage air conditioner, which is further described in detail below by referring to the attached drawings and embodiments in order to make the purpose, technical scheme and effect of the invention clearer and clearer.
In the description of the present invention, it is to be understood that the terms "lower" and the like indicate orientations or positional relationships based on those shown in the drawings, which are merely for convenience of describing the present invention and simplifying the description, and are not to be construed as limiting the present invention; in addition, the terms "mounted," "connected," and the like are to be construed broadly, and those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
Referring to fig. 7, the control method of the evaporative ice storage air conditioner disclosed in the present application is used for realizing the operation control of the evaporative ice storage air conditioner, the evaporative ice storage air conditioner includes a housing 1, a plurality of universal wheels 11 disposed at the bottom of the housing 1, and a control device 2, an air supply mechanism 4, a refrigerator storage 51, an ice water regulating valve 6, a membrane water distribution device 8, a water storage tank 9, a killing mechanism and a water return mechanism disposed in the housing 1, the refrigerator storage 51 is connected to the membrane water distribution device 8 through the ice water regulating valve 6, the water storage tank 9 is disposed below the membrane water distribution device 8, the water storage tank 9 is used for collecting the heat-exchanged water output by the membrane water distribution device 8, and the water storage tank 9 is communicated with the refrigerator storage 51 through the water return mechanism; cold water output by the refrigerator 51 is used as a cold source of the membrane type water distribution device 8, and after heat exchange, the cold water returns to the refrigerator 51 through the water storage tank 9 and the water return mechanism to melt ice, so that a water source in the shell 1 is fully utilized; an ice adding cover 52 and an ice water discharge port 12 are arranged on the shell 1, the ice adding cover 52 is used for achieving the purpose of adding ice into the ice storage box 51, and the ice water discharge port 12 is used for discharging the melted water in the ice storage box 51 to the outside of the ice storage air conditioner; an air supply temperature sensor 14 is arranged on the air supply side of the air supply mechanism 4, and the air supply temperature sensor 14 is used for detecting the temperature of the air output by the shell 1; a water temperature sensor 53 is arranged in the refrigerator 51, and the water temperature sensor 53 is used for detecting the temperature of the melted water in the refrigerator 51; the air supply mechanism 4, the ice water regulating valve 6, the killing mechanism, the water return mechanism, the air supply temperature sensor 14 and the water temperature sensor 53 are respectively electrically connected with the control device 2; in one embodiment, the control device 2 includes a power supply device 3 and a control circuit board electrically connected to the power supply device 3, the control circuit board is provided with any control chip of an STM32 series control chip, and the power supply device 3 provides a stable operating voltage for the operation of the ice storage air conditioner.
Referring to fig. 1 to 7, the present invention provides a control method of an evaporative ice storage air conditioner, including the steps of:
s100, the control device 2 acquires set air supply control accuracy T0, set air supply temperature T1 and set ice storage box temperature T2; the set blower control accuracy T0, the set blower temperature T1, and the ice bank set temperature T2 may be preset in the control device 2, or the user may set or modify the three parameters by using an operation panel or operating a remote control.
S200, the control device 2 controls the ice water regulating valve 6, the air supply mechanism 4, the sterilizing mechanism and the water return mechanism to start working; the refrigerator 51 starts to convey a cold source to the membrane water distribution device 8 through the ice water regulating valve 6, the air supply mechanism 4 outputs the air after heat exchange out of the shell 1, and the sterilization mechanism performs ultraviolet sterilization and disinfection on the air input into the shell 1 and the air output from the shell 1.
In one embodiment, the killing mechanism comprises an ultraviolet germicidal lamp 81 and an electronic dust-removing germicidal filter 82 which are respectively electrically connected with the control device 2; the ultraviolet sterilizing lamp is arranged on the air inlet side of the membrane type water distribution device 8, and the electronic dust removal sterilizing filter 82 is arranged on the air outlet side of the membrane type water distribution device 8; the ultraviolet sterilizing lamp 81 performs ultraviolet sterilization and disinfection on the air input into the shell 1, and the electronic dust removal sterilizing filter 82 further performs dust removal sterilization and disinfection on the air after heat exchange, so that viruses and bacteria carried by the air are reduced, and the cleanness degree of the air in the environment where the evaporative ice storage air conditioner is used is improved; in addition, because the membrane water distribution device 8 is in a wet state for a long time, bacteria are easy to breed on the surface of the water film, the ultraviolet sterilizing lamp 81 and the electronic dust removing sterilizing filter 82 are arranged, the membrane water distribution device 8 can be sterilized and disinfected, the service life of the membrane water distribution device 8 is prolonged, and the electronic dust removing sterilizing filter 82 can sterilize and disinfect air output by the membrane water distribution device 8, so that bacteria possibly existing on the membrane water distribution device 8 can be prevented from being carried into the air, and the use experience of a user is improved; the working principle of the electronic dust-removing sterilizing filter is consistent with that of the electrostatic dust collector in the prior art.
S300, the control device 2 obtains real-time air supply temperature T11 fed back by the air supply temperature sensor 14 and real-time water temperature T21 of the ice storage tank fed back by the water temperature sensor 53 in real time; the control device 2 calculates the sum and difference between the set air supply temperature T1 and the air supply control precision T0, and respectively compares the real-time air supply temperature with the sum and the difference; the control device 2 compares the ice storage tank real-time water temperature T21 with the ice storage tank set temperature T2.
S410, when T21 is greater than T2, the cold quantity of the melt water in the ice storage box 51 is indicated to be incapable of meeting the refrigeration requirement of the ice storage air conditioner, the control device 2 outputs a water drainage and ice change prompt, a user firstly discharges the melt water in the ice storage box 51 through the ice water discharge port 12 on the shell 1 and then opens the ice adding cover 52 on the shell 1 to realize the ice adding in the ice storage box 51, so that the cold source adding work is completed, and the operation is simple and convenient; in one embodiment, the shell 1 is provided with an operation panel, and the control device 2 outputs a water drainage and ice change prompt to the operation panel for display to remind workers of draining water and changing ice, so that the heat exchange work of the ice storage air conditioner is ensured to be normally and orderly carried out; when T21 is greater than T2, it indicates that the control device 2 receives a control command for stopping the evaporative ice storage air conditioner, and the control device 2 controls the ice water regulating valve 6 to close.
S420, when T21 is not less than T2 and T1-T0 is not less than T11 is not less than T1+ T0, it is shown that the temperature of the molten water in the ice storage box 51 still meets the heat exchange requirement of the ice storage air conditioner, namely the cold source of the ice storage air conditioner is sufficient, the actual air supply temperature is in the range of the preset air supply temperature, the control device 2 controls the opening degree of the ice water regulating valve 6 to be kept unchanged, namely the cold source quantity conveyed from the ice storage box 51 to the membrane water distribution device 8 is kept unchanged.
And S430, when T21 is not more than T2 and T11 is more than T1+ T0, the temperature of the molten water in the ice storage box 51 still meets the heat exchange requirement of the ice storage air conditioner, but the actual air supply temperature exceeds the range of the preset air supply temperature, and the control device 2 controls and increases the opening of the ice water regulating valve 6, so that the cold source quantity conveyed to the membrane water distribution device 8 by the ice storage box 51 is increased, the heat exchange effect of the ice storage air conditioner is improved, and the aim of quickly reducing the ambient air temperature is fulfilled.
S440, when T21 is not more than T2 and T11 is less than T1-T0, the temperature of the molten water in the ice storage box 51 still meets the heat exchange requirement of the ice storage air conditioner, but the actual air supply temperature is lower than the range of the preset air supply temperature, the control device 2 controls and reduces the opening of the ice water regulating valve 6, the cold source quantity conveyed to the membrane type water distribution device 8 by the ice storage box 51 is reduced, the heat exchange effect of the ice storage air conditioner is weakened, the ambient temperature is prevented from being too low, and the use experience of a user is improved.
The control method of the evaporative ice storage air conditioner disclosed by the application adjusts the opening degree of the ice water regulating valve 6 by detecting the real-time water temperature of water in the ice storage box 51 and according to the comparison result of the real-time water temperature and the set temperature of the ice storage box and the comparison result of the real-time air supply temperature and the set air supply temperature, thereby adjusting the heat exchange effect of the ice storage air conditioner on air, namely adjusting the working state of the ice storage air conditioner; the membrane type water distribution device 8 can fully utilize the cold energy of the molten water to cool the air; the melting heat of the ice is 336kJ/kg, the set temperature T2 of the ice storage box is assumed to be 20 ℃, the cold quantity which can be generated when the temperature of the melting water is increased from 0 ℃ to 20 ℃ is 84kJ/kg, and if the melting water is adopted to cool the air until the temperature of the melting water is increased to 20 ℃, about 25 percent of energy waste can be reduced; the control method of the evaporative ice-storage air conditioner disclosed by the application realizes the work control of the ice-storage air conditioner by detecting the real-time water temperature in the refrigerator 51 and the real-time air supply temperature in the shell 1, can fully utilize the cold energy of the molten water to cool the air, improves the energy utilization rate of the evaporative ice-storage air conditioner, and reduces the overall energy consumption of the evaporative ice-storage air conditioner.
Further, referring to fig. 2 and 7, the ice storage air conditioner further includes an operation panel disposed on the housing 1, the operation panel is electrically connected to the control device 2, and the control device 2 obtains a set air supply control accuracy T0, a set air supply temperature T1, and a set ice storage box temperature T2, and specifically includes the steps of:
s110, the control device 2 obtains the set air supply control precision T0, the set air supply temperature T1 and the set ice storage box temperature T2 through the operation panel, namely, in the working process of the ice storage air conditioner, a user can adjust the sizes of the air supply control precision T0, the set air supply temperature T1 and the set ice storage box temperature T2 by adopting the operation panel according to the actual use requirement; in one embodiment, the operating panel comprises a display screen for displaying information fed back to the control panel by the control device 2 and keyboard keys for enabling input of control instructions by a user.
Further, referring to fig. 2 and fig. 6, the air supply mechanism 4 includes a plurality of fans 41 disposed in the casing 1 and a plurality of air supply outlets 43 opened on the casing 1, the fans 41 correspond to the air supply outlets 43 one by one, and the fans 41 are electrically connected to the control device 2; when T21 is less than or equal to T2 and T11 is more than T1+ T0, the method further comprises the following steps after the control device 2 controls the opening degree of the ice water regulating valve 6 to be increased:
s431, controlling the increase of the starting number of the fans or the increase of the rotating speed of the started fans by the control device 2; in the actual working process, at the initial stage of the ice storage air conditioner, the control device 2 firstly controls part of the fans to start working; when T11 is more than T1+ T0, the control device 2 firstly controls and increases the opening of the ice water regulating valve 6, so that the cold source quantity conveyed to the membrane water distribution device 8 is increased, and the heat exchange effect of the ice cold storage air conditioner is improved; when the opening degree of the ice water regulating valve 6 is greater than or equal to the preset maximum opening degree and T11 is still greater than T1+ T0, the control device 2 may control the rotation speed of the started fan to increase, and when the fan works for a certain time, such as after working for 3 minutes, and the real-time air supply temperature T11 is still greater than T1+ T0, the control device 2 controls the remaining fans to start; when the real-time air supply temperature T11 is still greater than T1+ T0 after working for a certain time, such as 3 minutes, the control device 2 controls the rotating speed of all fans to increase so as to reduce the temperature of the surrounding ambient air; the mode that partial fans are controlled to be started firstly and more fans are controlled to be started when the environmental condition requirements cannot be met is adopted, so that the overall energy consumption of the ice storage air conditioner can be reduced to a certain extent.
Further, referring to fig. 2 and fig. 6, when T21 is not less than T2 and T11 is less than T1-T0, after the controlling device 2 controls to reduce the opening degree of the ice water regulating valve 6, the method further includes the steps of:
s441, the control device 2 controls to reduce the number of the activated fans 41 or controls to reduce the rotation speed of the activated fans 41; when the T11 is less than T1-T0, the control device 2 controls the rotating speed of the ice water regulating valve 6 to be reduced, so that the amount of cold source conveyed to the spraying mechanism is reduced, and the heat exchange effect of the ice storage air conditioner is weakened, when the rotating speed of the ice water regulating valve 6 is less than or equal to a preset minimum rotating speed and the T11 is still less than T1-T0, the control device 2 controls the number of the started fans to be reduced, and when the ice storage air conditioner works for a period of time, such as 3 minutes, and the real-time air supply temperature T11 is still less than T1-T0, the control device 2 controls the rotating speed of the started fans to be reduced, so that the temperature of the surrounding environment of the ice storage air conditioner is prevented from being.
Further, referring to fig. 3 and fig. 6, the control method further includes the steps of:
s510, the operation panel feeds the air supply outlet 43 selected by the user back to the control device 2, and the user can select the air supply outlet 43 to be opened through the operation panel, so that the use experience of the user is improved;
and S520, the control device 2 controls the corresponding fan 41 to be opened according to the air supply outlet 43 information fed back by the operation panel.
In one embodiment, a first fan and a second fan are arranged in the casing 1, a first air supply outlet communicated with the first fan and a second air supply outlet communicated with the second fan are formed in the casing 1, and the first air supply outlet is positioned above the second air supply outlet; the user can choose to supply air through the first air supply outlet positioned above or choose to supply air through the second air supply outlet positioned below or choose to supply air through the first air supply outlet and the second air supply outlet together according to actual use requirements, so that different air supply experiences are provided for the user.
Further, referring to fig. 4 and 7, an intake air temperature sensor 13 is disposed on an intake side of the housing 1, and the control method further includes the steps of:
s610, the control device 2 obtains the cooling setting temperature T3 and the cooling limit temperature T32 fed back by the operation panel, and the user can set the cooling setting temperature T3 and the cooling limit temperature T32 through the operation panel.
S620, the control device 2 obtains the real-time air inlet temperature T31 fed back by the air inlet temperature sensor 13, and compares the real-time air inlet temperature T31 with the refrigeration set temperature T3 and the refrigeration limit temperature T32 respectively.
S630, when T31 is larger than or equal to T3, the control device 2 controls the ice storage air conditioner to execute a refrigeration mode, the control device 2 calculates the sum and difference between air supply control precision T0 and set air supply temperature T1, the control device 2 obtains the real-time air supply temperature T11 fed back by the air supply temperature sensor 14 and the real-time water temperature T21 of the ice storage box fed back by the water temperature sensor 53 in real time, and adjusts the working state of the ice storage air conditioner according to the comparison result between the real-time water temperature T21 and the set temperature T2 of the ice storage box and the comparison result between the real-time air supply temperature T11 and the difference and the sum respectively; that is, the control device 2 controls the ice thermal storage air conditioner to sequentially execute step S300, step S410, step S420, step S430, and step S440.
S640, when the T32 is not more than T31 and less than T3, the control device 2 controls the ice storage air conditioner to be adjusted to a ventilation mode, the control device 2 controls the ice water regulating valve 6 to stop working, and controls the working state of the air supply mechanism 4 to be kept unchanged; the ice cold accumulation air conditioner cools the air through the cold energy remained on the membrane water distribution device 8; when the ice thermal storage air conditioner executes the ventilation mode, the control device 2 receives the real-time air supply temperature T11 fed back by the air supply temperature sensor 14 and the real-time water temperature T21 of the ice storage tank fed back by the water temperature sensor 53 in real time.
S650, when T31 is less than T3, the control device 2 controls the ice storage air conditioner to be adjusted to be in a standby state, when the ice storage air conditioner is in the standby state, the ice water regulating valve 6 stops working, the ice storage box 51 stops conveying cold sources to the membrane water distribution device 8, the fan 41 in the shell 1 is in a stop state, and the air supply temperature sensor 14 and the water temperature sensor 53 feed back real-time air supply temperature T11 and real-time water temperature T21 to the control device 2 in real time.
In another embodiment, only the refrigeration set temperature T3 is set in the control device 2, and when T31 is more than or equal to T3, the control device 2 controls the ice storage air conditioner to execute the refrigeration mode; when T31 < T3, the control device 2 controls the ice thermal storage air conditioner to be in a standby state.
Further, referring to fig. 5 and fig. 7, the control method further includes the steps of:
and S710, the control device 2 acquires the drying air supply temperature difference T4 and the delay time T of the fan 41 fed back by the operation panel, and the user can set the drying air supply temperature difference T4 and the delay time T of the fan 41 through the operation panel.
S720, when the control device 2 receives a control instruction of stopping the evaporative ice cold storage air conditioner, the control device 2 controls the ice water regulating valve 6 to be closed, and calculates a difference value between a real-time air supply temperature T11 fed back by the air supply temperature sensor 14 and a real-time air inlet temperature T31 fed back by the air inlet temperature sensor 13; when a user triggers a stop button arranged on the shell 1 or the evaporative ice storage mobile air conditioner needs to drain water and change ice, the control device 2 is indicated to receive a control instruction of stopping the evaporative ice storage air conditioner.
S730, if T31-T11 is larger than T4, the control device 2 controls the working states of the sterilizing mechanism and the air supply mechanism 4 to be kept unchanged;
and S740, if the T31-T11 is less than or equal to T4, the control device 2 controls the sterilizing mechanism to stop working, and controls the air supply mechanism 4 to stop working after T time.
Before the evaporative ice-storage air conditioner is shut down, the control device 2 respectively controls the sterilizing mechanism and the air supply mechanism 4 to work for a period of time and then is closed, the membrane type water distribution device 8 can be subjected to ultraviolet sterilization and blow-drying, the possibility of bacteria remaining on the surface of the membrane type water distribution device 8 is reduced, the service life of the membrane type water distribution device 8 is prolonged, and the using effect of the evaporative ice-storage air conditioner is improved.
Further, referring to fig. 6 and 7, the water return mechanism includes a water return pump 7 electrically connected to the control device 2, and the water storage tank 9 is connected to the refrigerator 51 through the water return pump 7; a first liquid level detector 91 is arranged in the water storage tank 9, the first liquid level detector 91 is electrically connected with the control device 2, and the control method further comprises the following steps:
s810, when the first real-time water level value fed back by the first liquid level detector 91 is larger than or equal to the starting liquid level preset in the control device 2, the control device 2 controls the water return pump 7 to start working, the problem that water overflows due to the fact that the water amount of the water stored in the water storage tank 9 is too large is avoided, and the stability and the reliability of the ice storage air conditioner during working are improved.
S820, when the first real-time water level value fed back by the first liquid level detector 91 is smaller than or equal to a stop liquid level preset in the control device 2, the control device 2 controls the water return pump 7 to stop working; the control device 2 controls the water return pump 7 to stop working; the liquid level is stopped, the water return pump 7 is protected, the air pumping condition of the water return pump 7 is avoided, and the stability and the reliability of the ice storage air conditioner during working are improved.
Further, referring to fig. 6 and 7, a second liquid level detector 92 is further disposed in the water storage tank 9, the second liquid level detector 92 is electrically connected to the control device 2, and the control method further includes the steps of:
s830, when the second real-time water level value fed back by the second liquid level detector 92 is larger than or equal to the maximum liquid level value preset in the control device 2, the control device 2 controls the ice water regulating valve 6 to be closed; the water return pump 7 continuously pumps water in the water storage tank 9 to the ice storage tank 51, so that the problem of water overflow caused by excessive water stored in the water storage tank 9 is avoided, and the stability and the reliability of the ice storage air conditioner during working are improved.
S840, when the second real-time water level value fed back by the second liquid level detector 92 is smaller than or equal to a liquid level reset value preset in the control device 2, the control device 2 controls the ice water regulating valve 6 to be opened; the water level in the water storage tank 9 is prevented from being too low; after the ice water regulating valve 6 is opened, the control device 2 controls the ice thermal storage air conditioner to sequentially execute step S300, step S410, step S420, step S430, and step S440 to adjust the opening degree of the ice water regulating valve 6.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the protective scope of the present invention.
Claims (10)
1. The control method of the evaporative ice-storage air conditioner is characterized in that the evaporative ice-storage air conditioner comprises a shell, a control device, an air supply mechanism, a refrigerator, an ice water regulating valve, a membrane type water distribution device, a water storage tank, a killing mechanism and a water return mechanism, wherein the control device, the air supply mechanism, the refrigerator, the ice water regulating valve, the membrane type water distribution device, the water storage tank, the killing mechanism and the water return mechanism are arranged in the shell; the air supply side of the air supply mechanism is provided with an air supply temperature sensor, the ice storage box is internally provided with a water temperature sensor, and the air supply mechanism, the ice water regulating valve, the sterilization mechanism, the water return mechanism, the air supply temperature sensor and the water temperature sensor are respectively and electrically connected with the control device; the control method comprises the following steps:
the control device acquires the set blowing control precision T0, the set blowing temperature T1 and the set ice storage box temperature T2;
the control device controls the ice water regulating valve, the air supply mechanism, the sterilization mechanism and the water return mechanism to start working;
the control device acquires real-time air supply temperature T11 fed back by the air supply temperature sensor and real-time water temperature T21 of the ice storage box fed back by the water temperature sensor in real time;
when T21 is larger than T2, the control device outputs a water drainage and ice change prompt;
when T21 is not less than T2 and T1-T0 is not less than T11 is not less than T1+ T0, the control device controls the opening degree of the ice water regulating valve to be kept unchanged;
when T21 is less than or equal to T2 and T11 is more than T1+ T0, the control device controls the opening degree of the ice water regulating valve to be increased;
when T21 is less than or equal to T2 and T11 is less than T1-T0, the control device controls the opening degree of the ice water reducing adjusting valve.
2. The method as claimed in claim 1, wherein the ice thermal storage air conditioner further comprises an operation panel disposed on the housing, the operation panel is electrically connected to the control device, and the control device obtains the set air supply control accuracy T0, the set air supply temperature T1 and the set ice storage tank temperature T2, and specifically comprises the steps of:
the control device obtains the set blowing control precision T0, the set blowing temperature T1 and the ice storage box set temperature T2 through the operation panel.
3. The control method of the evaporative ice cold storage air conditioner as claimed in claim 2, wherein the air supply mechanism comprises a plurality of fans arranged in the housing and a plurality of air supply outlets arranged on the housing, the fans are in one-to-one correspondence with the air supply outlets, and the fans are electrically connected with the control device; when T21 is less than or equal to T2 and T11 is more than T1+ T0, the control device controls the opening degree of the ice water regulating valve to be increased, and the method further comprises the following steps:
the control device controls the increase of the starting number of the fans or controls the increase of the rotating speed of the started fans.
4. The control method of the evaporative ice storage air conditioner according to claim 3, wherein when T21 is not less than T2 and T11 is less than T1-T0, the control device controls to reduce the opening degree of the ice water regulating valve, and further comprising the steps of:
the control device controls to reduce the number of the started fans or controls to reduce the rotating speed of the started fans.
5. The control method of the evaporative ice storage air conditioner according to claim 3, wherein the control method further comprises the steps of:
the operation panel feeds back the air supply outlet selected by the user to the control device;
and the control device controls the corresponding fan to be opened according to the air supply outlet information fed back by the operation panel.
6. The control method of the evaporative ice storage air conditioner according to claim 2, wherein an inlet air temperature sensor is arranged on the inlet air side of the housing, and the control method further comprises the following steps:
the control device obtains the refrigeration set temperature T3 fed back by the operation panel;
the control device obtains the real-time inlet air temperature T31 fed back by the inlet air temperature sensor;
when T31 is more than or equal to T3, the control device calculates the sum and difference between air supply control precision T0 and set air supply temperature T1, the control device obtains real-time air supply temperature T11 fed back by the air supply temperature sensor and real-time water temperature T21 of the ice storage box fed back by the water temperature sensor in real time, and adjusts the working state of the ice storage air conditioner according to the comparison result between the real-time water temperature T21 and the set temperature T2 of the ice storage box and the comparison result between the real-time air supply temperature T11 and the difference and the sum respectively;
when T31 < T3, the control device controls the ice storage air conditioner to be in a standby state.
7. The control method of the evaporative ice storage air conditioner according to claim 6, wherein the control method further comprises the steps of:
the control device acquires the refrigeration limit temperature T32 fed back by the operation panel;
when T31 is more than or equal to T32 and less than T3, the control device controls the ice storage air conditioner to be adjusted to the ventilation mode, controls the ice water regulating valve to stop working and controls the working state of the air supply mechanism to be kept unchanged;
when T31 < T32, the control device controls the ice storage air conditioner to be in a standby state.
8. The control method of the evaporative ice storage air conditioner according to claim 6, wherein the control method further comprises the steps of:
the control device obtains a drying air supply temperature difference T4 and a fan delay time T fed back by the operation panel;
when the control device receives a control instruction of stopping the evaporative ice cold storage air conditioner, the control device controls the ice water regulating valve to be closed, and calculates the difference value between the real-time air supply temperature T11 fed back by the air supply temperature sensor and the real-time air inlet temperature T31 fed back by the air inlet temperature sensor;
if T31-T11 is more than T4, the control device controls the working states of the sterilizing mechanism and the air supply mechanism to be kept unchanged;
if T31-T11 is not more than T4, the control device controls the killing mechanism to stop working, and controls the air supply mechanism to stop working after T time.
9. The control method of the evaporative ice storage air conditioner according to claim 1, wherein the water return mechanism includes a water return pump electrically connected to the control device, and the water storage tank is connected to the ice storage tank through the water return pump; a first liquid level detector is arranged in the water storage tank and electrically connected with the control device, and the control method further comprises the following steps:
when the first real-time water level value fed back by the first liquid level detector is greater than or equal to a starting liquid level preset in the control device, the control device controls the water return pump to start working;
when the first real-time water level value fed back by the first liquid level detector is smaller than or equal to a stop liquid level preset in the control device, the control device controls the water return pump to stop working.
10. The control method of the evaporative ice storage air conditioner according to claim 9, wherein a second liquid level detector is further disposed in the water storage tank, the second liquid level detector is electrically connected to the control device, and the control method further comprises the steps of:
when the second real-time water level value fed back by the second liquid level detector is greater than or equal to the maximum liquid level value preset in the control device, the control device controls the ice water regulating valve to be closed;
and when the second real-time water level value fed back by the second liquid level detector is less than or equal to a liquid level reset value preset in the control device, the control device controls the ice water regulating valve to be opened.
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| CN102003754A (en) * | 2010-11-30 | 2011-04-06 | 江苏兆胜空调有限公司 | Low temperature air supply air conditioner device for naval vessels and control method thereof |
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| CN112682912B (en) | 2022-07-26 |
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