CN113932366A - Control method of kitchen air conditioner and air conditioner - Google Patents
Control method of kitchen air conditioner and air conditioner Download PDFInfo
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- CN113932366A CN113932366A CN202111290342.8A CN202111290342A CN113932366A CN 113932366 A CN113932366 A CN 113932366A CN 202111290342 A CN202111290342 A CN 202111290342A CN 113932366 A CN113932366 A CN 113932366A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 148
- 239000007789 gas Substances 0.000 claims description 28
- 239000000498 cooling water Substances 0.000 claims description 16
- 239000003507 refrigerant Substances 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 239000008399 tap water Substances 0.000 description 5
- 235000020679 tap water Nutrition 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
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- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to the field of air conditioners, and particularly relates to a control method of an air conditioner, which comprises the following steps: before starting the compressor to operate, obtaining the initial indoor environment temperature TEnvironment(s)According to the obtained initial indoor environment temperature TEnvironment(s)Determining an initial operating frequency F of a compressor0(ii) a Controlling a compressor to an initial operating frequency F0Operation, when operating for a first set time t0Then, the indoor ambient temperature T is obtainedEnvironment(s)And indoor air-out temperature TAir outlet(ii) a Calculating indoor ambient temperature TAmbient temperatureAnd the temperature T of the outlet airAir outletIs within a first difference range by adjusting the operating frequency of the compressor. The invention is based on the indoor ambient temperature TAmbient temperatureAnd the temperature T of the outlet airAir outletDifference of (2) to air conditionerThe operating parameter is adjusted so that indoor ambient temperature and air-out temperature are in a suitable temperature difference range, and therefore the comfort degree of a human body is just right, and the use experience of a user is improved.
Description
Technical Field
The invention belongs to the field of air conditioners, and particularly relates to a control method of a kitchen air conditioner and the air conditioner.
Background
The existing kitchen air conditioner usually judges the cooling or heating effect of the air conditioner according to whether the indoor environment temperature reaches the target temperature. However, the user's feeling in the air-conditioning environment is often ignored in this determination method, and even if the indoor environment temperature reaches the target temperature, there is a temperature difference between the air blown out by the air conditioner and the indoor environment temperature, and this temperature difference can make the user feel uncomfortable. Therefore, it is desirable to provide a control method for an air conditioner that can make the indoor environment temperature and the outlet air temperature within a proper temperature difference range, so as to make the comfort of human body just good.
The present invention has been made in view of this situation.
Disclosure of Invention
In order to solve the technical problem, the invention provides a control method of a kitchen air conditioner, wherein the kitchen air conditioner comprises a refrigerant circulation loop consisting of a compressor, an evaporator, a throttling device and a condenser, and further comprises a cooling water path coupled with the condenser, and the cooling water path exchanges heat with a refrigerant in the condenser; the control method comprises the following steps:
before starting the compressor to operate, obtaining the initial indoor environment temperature TEnvironment(s)According to the obtained initial indoor environment temperature TEnvironment(s)Determining an initial operating frequency F of a compressor0；
Controlling a compressor to an initial operating frequency F0Operation, when operating for a first set time t0Then, the indoor ambient temperature T is obtainedEnvironment(s)And indoor air-out temperature TAir outlet；
Calculating indoor ambient temperature TAmbient temperatureAnd the temperature T of the outlet airAir outletBy adjusting the operating frequency of the compressor to make said differenceThe value Δ T is within a first range of differences.
Further optionally, said adjusting the operating frequency of the compressor to bring said difference Δ T within a first difference range comprises
Comparing said difference DeltaT with a temperature difference DeltaT1Comparing, and judging whether to adjust the frequency of the compressor according to the comparison result;
when the following conditions are satisfied: delta T is less than Delta T1-a first setpoint controlling the compressor up-conversion operation;
when the following conditions are satisfied: delta T > [ Delta T ]1+ the first set value, controlling the compressor to operate in a frequency reduction mode;
when the following conditions are satisfied: delta T1- Δ T is less than or equal to the first set value1And + a first set value, wherein the difference value Delta T is within a first difference range, and the compressor is controlled to keep running at the current frequency.
Further optionally, before the compressor is started to operate, if the air conditioner does not receive the windshield setting instruction, the control method further includes:
after the initial indoor environment temperature is obtained, the initial inner fan rotating speed R is determined according to the obtained initial indoor environment temperature0；
Compressor operating at initial frequency F0When the air conditioner runs, the air conditioner is also controlled to rotate at the initial internal fan rotating speed R0Running;
when the difference value delta T is within a first difference value range, the rotation speed of the inner fan is adjusted to enable the difference value delta T to be within a second difference value range, and the second difference value range is located within the first difference value range.
Further optionally, the difference Δ T is within a second difference range by adjusting the rotation speed of the inner fan, including
Comparing said difference DeltaT with a temperature difference DeltaT1Comparing, and judging whether to adjust the rotating speed of the inner fan or not according to a comparison result;
when the following conditions are satisfied: delta T is less than Delta T1-a second set value controlling the inner fan to run at an increased speed;
when the following conditions are satisfied: delta T > [ Delta T ]1+ a second set value, controlling the inner fan to run at a reduced speed;
when the following conditions are satisfied: delta T1- Δ T is less than or equal to the second set value1When the difference value delta T is within a second difference value range, controlling the inner fan to keep the current rotating speed to operate;
the second set value is less than the first set value.
Further optionally, the air conditioner is controlled to operate at the set rotation speed of the internal fan during the operation process of the air conditioner.
Further optionally, the control method further comprises:
after the initial indoor environment temperature is obtained, the initial flow M of the heat exchange pipeline is determined according to the obtained initial indoor environment temperature0；
When the difference value delta T is within a second difference value range, the outlet water temperature T of the cooling water channel is obtainedDischarging waterAnd the temperature T of the inlet waterInflow water；
Calculating the temperature T of the waterDischarging waterAnd the temperature T of the inlet waterInflow waterTemperature difference Delta T ofWater (W)And the temperature difference delta T is caused by adjusting the water flow of the cooling water channelWater (W)Within a third temperature differential range.
Further optionally, the temperature difference Δ T is adjusted by adjusting the water flow of the cooling water circuitWater (W)Within a third temperature difference range, including
According to Δ TWater (W)Difference from set temperature Delta TWater targetJudging whether the water flow needs to be adjusted or not according to the difference value;
when the following conditions are satisfied: delta TWater (W)＜△TWater target-a third set point controlling the air conditioner to reduce the inflow;
when the following conditions are satisfied: delta TWater (W)＞△TWater targetControlling the air conditioner to increase water flow;
when the following conditions are satisfied: delta TWater target- Δ T equal to or less than the third set valueWater (W)≤△TWater targetAt this time, the temperature difference Δ TWater (W)And controlling the air conditioner to operate at the current water flow in the third temperature difference range.
Further optionally, characterized by obtainingAfter the initial indoor environment temperature is obtained, the initial opening P of the throttling device is determined according to the obtained initial indoor environment temperature0，
Controlling a compressor to an initial operating frequency F0After running, acquiring the exhaust temperature T of the compressor in real timeExhaust of gasesAnd the exhaust temperature T is adjusted by adjusting the opening degree of the throttling deviceExhaust of gasesWithin a fourth temperature differential range.
Further optionally, the exhaust temperature T is adjusted by adjusting the opening degree of the throttle deviceExhaust of gasesWithin a fourth temperature difference range, including
According to TExhaust of gasesWith target exhaust value DeltaTTarget exhaustJudging whether the opening of the throttling device needs to be adjusted or not by the difference value, and when the T is metExhaust of gases＜TTarget exhaust-controlling the air conditioner to reduce the opening of the throttling means at a fourth set point;
when T is satisfiedExhaust of gases＞TTarget exhaustWhen the fourth set value is positive, the air conditioner is controlled to increase the opening degree of the throttling device;
when T is satisfiedTarget exhaustT is less than or equal to delta T when the fourth setting value is less than or equal toTarget exhaust+ fourth setting, at which time said exhaust temperature T isExhaust of gasesAnd controlling the air conditioner to keep the current opening operation of the throttling device in the fourth temperature difference range.
The present invention also provides an air conditioner control apparatus comprising one or more processors and a non-transitory computer readable storage medium having stored thereon program instructions, the one or more processors being configured to implement any of the methods described above when the program instructions are executed by the one or more processors.
The invention also proposes a non-transitory computer-readable storage medium having stored thereon program instructions for implementing any of the methods described above when the program instructions are executed by one or more processors.
The invention also proposes an air conditioner which adopts the method of any one of the above, or comprises the above control device, or has the above non-transitory computer-readable storage medium.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
the invention is based on the indoor ambient temperature TAmbient temperatureAnd the temperature T of the outlet airAir outletThe difference value adjust so that indoor ambient temperature and air-out temperature are in a suitable difference in temperature range to make human comfort just, promote user's use and experience.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1: is a control logic diagram of the control method of the embodiment of the invention.
FIG. 2: is a control logic diagram of a specific implementation of the control method of the embodiment of the invention.
FIG. 3: is a control logic diagram of another specific implementation of the control method of the embodiment of the invention.
FIG. 4: is a front view of the structure of an air conditioner according to an embodiment of the present invention.
FIG. 5: is a front cross-sectional view of fig. 4.
FIG. 6: is a side sectional view of fig. 4.
FIG. 7: is a system diagram of an air conditioner according to an embodiment of the present invention.
Wherein: 101-an air outlet; 102-an evaporator; 103-touch control panel; 104-a water collecting tray; 105-a throttling device; 106-a condenser; 107-a compressor; 108-a first control valve; 109-plate heat exchanger; 110-a second control valve; 111-centrifugal fan; 112-a flow guiding ring; 113-a first side air inlet; 114-a second side air inlet; 115-a separator; 116-an electrical heating module; 117-mixed flow valve; 118-water valve.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to solve the problem that the air blown out by the air conditioner still makes users feel uncomfortable after the indoor environment temperature of the existing air conditioner reaches the target temperature, the present embodiment provides a control method of the air conditioner, as shown in an air conditioning system diagram of fig. 7, the kitchen air conditioner of the present embodiment includes a refrigerant circulation loop composed of a compressor, an evaporator, a throttling device and a condenser, and further includes a cooling water path coupled with the condenser, and the cooling water path exchanges heat with the refrigerant in the condenser. The control method of the air conditioner of the embodiment is the control logic diagram as shown in FIG. 1, comprising
Before starting the compressor to operate, obtaining the initial indoor environment temperature TEnvironment(s)According to the obtained initial indoor environment temperature TEnvironment(s)Determining an initial operating frequency of a compressorF0(ii) a In this embodiment, the preset corresponding relationship between the indoor ambient temperature and the initial operating frequency is stored in the control device of the air conditioner, and after the indoor ambient temperature is detected, the initial frequency F corresponding to the indoor ambient temperature can be obtained by looking up the table0。
Controlling a compressor to an initial operating frequency F0Operation, when operating for a first set time t0Then, the indoor ambient temperature T is obtainedEnvironment(s)And indoor air-out temperature TAir outlet；
Calculating indoor ambient temperature TAmbient temperatureAnd the temperature T of the outlet airAir outletIs within a first difference range by adjusting the operating frequency of the compressor.
The difference between the indoor environment temperature and the outlet air temperature is judged whether to be within the set difference range or not, so that the frequency of the compressor is adjusted to enable the temperature of the air blown out by the air conditioner to be just good and reach the comfortable degree of a user.
Further optionally, said adjusting the operating frequency of the compressor to bring said difference Δ T within a first difference range comprises
Comparing said difference DeltaT with a temperature difference DeltaT1Comparing, and judging whether to adjust the frequency of the compressor according to the comparison result;
when the following conditions are satisfied: delta T is less than Delta T1-a first setpoint controlling the compressor up-conversion operation; after meeting this condition, it shows that the difference between the indoor ambient temperature and the outlet air temperature is small, and the frequency of the compressor needs to be increased to reduce the outlet air temperature, so as to meet the difference between the indoor ambient temperature and the outlet air temperature.
When the following conditions are satisfied: delta T > [ Delta T ]1+ the first set value, controlling the compressor to operate in a frequency reduction mode; after meeting this condition, it shows that the difference between the indoor ambient temperature and the outlet air temperature is small, and the frequency of the compressor needs to be increased to reduce the outlet air temperature, so as to meet the difference between the indoor ambient temperature and the outlet air temperature.
When the following conditions are satisfied: delta T1- Δ T is less than or equal to the first set value1+ a first set value, when said difference Δ T is within a first difference rangeAnd controlling the compressor to keep running at the current frequency. When the condition is met, the difference between the indoor environment temperature and the outlet air temperature meets the requirement set by a program, and at the moment, the cold quantity of the system basically meets the requirement, and only the current running frequency needs to be maintained.
Further optionally, before the compressor is started to operate, if the air conditioner does not receive the windshield setting instruction, the control method further includes:
after the initial indoor environment temperature is obtained, the initial inner fan rotating speed R is determined according to the obtained initial indoor environment temperature0(ii) a In this embodiment, the preset corresponding relationship between the indoor environment temperature and the initial rotation speed of the internal fan is stored in the control device of the air conditioner, and after the indoor environment temperature is detected, the initial frequency R of the internal fan corresponding to the indoor environment temperature can be obtained by looking up the table0。
Compressor operating at initial frequency F0When the air conditioner runs, the air conditioner is also controlled to rotate at the initial internal fan rotating speed R0Running;
when the difference value delta T is within a first difference value range, the rotation speed of the inner fan is adjusted to enable the difference value delta T to be within a second difference value range, and the second difference value range is located within the first difference value range.
When the user does not set the windshield, the embodiment adjusts and controls the rotating speed of the internal fan in real time to enable the temperature of the air blown out by the air conditioner to be just good and achieve the comfortable degree of the user by judging whether the difference value between the indoor environment temperature and the air outlet temperature is within the set difference value range.
Further optionally, the difference Δ T is within a second difference range by adjusting the rotation speed of the inner fan, including
Comparing said difference DeltaT with a temperature difference DeltaT1Comparing, and judging whether to adjust the rotating speed of the inner fan or not according to a comparison result;
when the following conditions are satisfied: delta T is less than Delta T1-a second set value controlling the inner fan to run at an increased speed; when the condition is met, the difference between the indoor environment temperature and the air outlet temperature is small, and the rotating speed of the inner fan needs to be increased to reduce the air outlet temperature, so that the air outlet temperature is reducedAnd the difference between the indoor environment temperature and the air outlet temperature is met.
When the following conditions are satisfied: delta T > [ Delta T ]1+ a second set value, controlling the inner fan to run at a reduced speed; after satisfying this condition, it explains that the difference between indoor ambient temperature and air-out temperature is little, needs to promote the rotational speed of interior fan and reduces air-out temperature to satisfy the difference between indoor ambient temperature and air-out temperature.
When the following conditions are satisfied: delta T1- Δ T is less than or equal to the second set value1When the difference value delta T is within a second difference value range, controlling the inner fan to keep the current rotating speed to operate; after satisfying this condition, it is great to explain indoor ambient temperature and the difference of air-out temperature, and the rotational speed that need reduce interior fan in this time promotes air-out temperature to make indoor ambient temperature and air-out temperature's difference reduce. The first set value is less than the first set value. Wherein the first set point is greater than the second set point, the first set point is optionally 1 deg.C, and the second set point is optionally 0.5 deg.C.
Further optionally, the air conditioner is controlled to operate at the set rotation speed of the internal fan during the operation process of the air conditioner.
Further optionally, the control method further comprises:
after the initial indoor environment temperature is obtained, the initial flow M of the heat exchange pipeline is determined according to the obtained initial indoor environment temperature0(ii) a In this embodiment, the preset corresponding relationship between the indoor ambient temperature and the initial flow rate is stored in the control device of the air conditioner, and after the indoor ambient temperature is detected, the initial flow rate M corresponding to the indoor ambient temperature can be obtained by looking up the table0。
When the difference value delta T is within a second difference value range, the outlet water temperature T of the cooling water channel is obtainedDischarging waterAnd the temperature T of the inlet waterInflow water；
Calculating the temperature T of the waterDischarging waterAnd the temperature T of the inlet waterInflow waterTemperature difference Delta T ofWater (W)And the temperature difference delta T is caused by adjusting the water flow of the cooling water channelWater (W)Within a third temperature differential range.
Go toOptionally, adjusting the water flow rate of the cooling water path to adjust the temperature difference Δ TWater (W)Within a third temperature difference range, including
According to Δ TWater (W)Difference from set temperature Delta TWater targetJudging whether the water flow needs to be adjusted or not according to the difference value;
when the following conditions are satisfied: delta TWater (W)＜△TWater target-a third set point controlling the air conditioner to reduce the inflow;
when the following conditions are satisfied: delta TWater (W)＞△TWater targetControlling the air conditioner to increase water flow;
when the following conditions are satisfied: delta TWater target- Δ T equal to or less than the third set valueWater (W)≤△TWater targetAt this time, the temperature difference Δ TWater (W)And controlling the air conditioner to operate at the current water flow in the third temperature difference range.
The embodiment adjusts the water inlet and outlet flow after the air conditioner operates under a stable working condition, because the air conditioner can set relatively large water flow at the initial stage of just starting, thereby ensuring that the heat exchange amount is sufficient at the just starting stage. The air outlet parameters of the system reach a relatively stable state and then the water flow is finely adjusted by adjusting the frequency of the compressor and the rotating speed of the inner fan, so that the water consumption is reduced in the stable state of the system.
Further optionally, after the initial indoor ambient temperature is obtained, the initial opening P of the throttling device is determined according to the obtained initial indoor ambient temperature0In this embodiment, the preset corresponding relationship between the indoor ambient temperature and the initial opening of the throttle valve is stored in the control device of the air conditioner, and after the indoor ambient temperature is detected, the initial opening P of the throttle device corresponding to the indoor ambient temperature can be obtained by looking up the table0。
Controlling a compressor to an initial operating frequency F0After running, acquiring the exhaust temperature T of the compressor in real timeExhaust of gasesAnd the exhaust temperature T is adjusted by adjusting the opening degree of the throttling deviceExhaust of gasesWithin a fourth temperature differential range.
Further optionally, the throttling is adjustedOpening of the device to bring the exhaust temperature TExhaust of gasesWithin a fourth temperature difference range, including
According to TExhaust of gasesWith target exhaust value DeltaTTarget exhaustJudging whether the opening of the throttling device needs to be adjusted or not by the difference value, and when the T is metExhaust of gases＜TTarget exhaust-controlling the air conditioner to reduce the opening of the throttling means at a fourth set point;
when T is satisfiedExhaust of gases＞TTarget exhaustWhen the fourth set value is positive, the air conditioner is controlled to increase the opening degree of the throttling device;
when T is satisfiedTarget exhaustT is less than or equal to delta T when the fourth setting value is less than or equal toTarget exhaust+ fourth setting, at which time said exhaust temperature T isExhaust of gasesAnd controlling the air conditioner to keep the current opening operation of the throttling device in the fourth temperature difference range.
In this embodiment, the opening degree of the throttling device is adjusted to enable the energy generated by the work of the compressor to meet the control requirement of the air conditioner, and the fourth setting value is optionally 1 ℃. The implemented operation parameters comprise the frequency of the compressor, the opening degree of the throttling device and at least one of the rotating speed of the internal fan and the flow of the heat exchange water path.
In some specific embodiments, parameters such as the frequency of the compressor, the opening of the expansion valve, the water flow rate of the system and the like are adjusted by two control methods according to whether a user sets a wind gear when the user starts the machine.
The control logic diagram of the user starting without setting the windshield is shown in fig. 2, and the specific control steps are as follows:
s01, starting the air conditioner and detecting the ambient temperature, specifically, after the air conditioner receives the starting signal, starting to detect the indoor ambient temperature, and automatically setting the initial frequency F by the system according to the indoor ambient temperature0Initial rotating speed R of inner fan0Initial flow rate M0Initial opening degree P of throttle device0；
S101, operating t according to initial setting parameters0In minutes, the air outlet temperature and the indoor environment temperature are detected, and the indoor environment temperature T is calculatedAmbient temperatureAnd the temperature T of the outlet airAir outletTemperature difference delta T, delta T being an indoor ringAmbient temperature TAmbient temperature-outlet air temperature TAir outletAnd according to the difference between delta T and the preset temperature delta T1Comparing to judge whether frequency adjustment is needed;
s102, judging whether delta T is satisfied1- Δ T is less than or equal to the first set value1+ a first set value, which may be selected to be 1 ℃; if yes, the process proceeds to S105, and if no, the process proceeds to S103 and S104, respectively;
s103, when satisfying DeltaT >. DeltaT1When the frequency is higher than the first set value, controlling the compressor to operate in a frequency reduction mode, and returning to the step S101;
s104, when satisfying DeltaT < DeltaT1At the first set value, controlling the compressor to run at an increased frequency, and returning to S101;
s105, the compressor keeps running at the current frequency, and the rotating speed R of the inner fan is adjusted;
s106, judging whether the following conditions are met: delta T1- Δ T is less than or equal to the second set value1When the second set value is + the second set value, the second set value is optionally 0.5 ℃, if the judgment result is yes, the step is S109, and if the judgment result is no, the step is S107 and S108 respectively;
s107, when satisfying DeltaT >. DeltaT1When the second set value is larger than the first set value, the inner fan is controlled to rotate;
s108, when satisfying the requirement of delta T < deltaT1-controlling the inner fan to increase the rotational speed at a first set value;
s109, controlling the inner fan to keep running at the current rotating speed, and adjusting the water flow M0；
S110, after T1 minutes of operation, detecting the temperature difference between inlet water and outlet water to calculate the water temperature TDischarging waterAnd the temperature T of the inlet waterInflow waterTemperature difference Delta T ofWater (W)＝TDischarging water-TInflow water；
S111, judging whether delta T is metWater target- Δ T equal to or less than the third set valueWater (W)≤△TWater targetIf the third set value is 1 ℃, the step enters S114, and if the result is yes, the step enters S112 and S113 respectively;
s112, when satisfying Δ TWater (W)＜△TWater target-a third set point for controlling the air conditioner to dropThe water inlet flow is low;
s113, when satisfying Δ TWater (W)＞△TWater targetControlling the air conditioner to increase water flow;
and S114, controlling the air conditioner to operate at the current water flow.
Further optionally, steps S201-S204 are performed while steps S101-S114 are performed:
s201, detecting exhaust temperature T of compressorExhaust of gases；
S202, judging whether T is metTarget exhaustT is less than or equal to delta T when the fourth setting value is less than or equal toTarget exhaust+ a fourth set value, optionally 2 ℃; if yes, entering S204, and if not, entering S203;
s203, the controller receives the signal and adjusts the opening P of the throttling device, and the throttling device can be an expansion valve; the specific adjusting mode is as follows: when T is satisfiedExhaust of gases＜TTarget exhaust-controlling the air conditioner to reduce the opening of the throttling means at a fourth set point; when T is satisfiedExhaust of gases＞TTarget exhaustWhen the fourth set value is positive, the air conditioner is controlled to increase the opening degree of the throttling device;
and S204, keeping the current throttle opening P.
The control logic diagram for starting up by setting the gear by the user is shown in fig. 3, and the specific control steps are as follows:
t01, starting the air conditioner and detecting the ambient temperature, specifically, after the air conditioner receives a starting signal, starting to detect the indoor ambient temperature, and automatically setting the initial frequency F by the system according to the indoor ambient temperature0Initial flow rate M0Initial opening degree P of throttle device0；
T101, operating T with initial setting parameters0In minutes, the air outlet temperature and the indoor environment temperature are detected, and the indoor environment temperature T is calculatedAmbient temperatureAnd the temperature T of the outlet airAir outletDelta T is the indoor ambient temperature TAmbient temperature-outlet air temperature TAir outletAnd according to the difference between delta T and the preset temperature delta T1Comparing to judge whether frequency adjustment is needed;
t102, judging whether the requirements are met△T1- Δ T is less than or equal to the first set value1+ a first set value, which may be selected to be 1 ℃; if the judgment result is yes, entering T105, and if the judgment result is no, entering T103 and T104 respectively;
t103, when Δ T > [ Delta ] T is satisfied1When the frequency is higher than the first set value, controlling the compressor to operate in a frequency reduction mode, and returning to T101;
t104, when Δ T < ΔT is satisfied1At a first set value, controlling the compressor to run at an increased frequency, and returning to T101;
t105, the compressor keeps running at the current frequency, and the water flow M is adjusted0；
T106, after T1 minutes, detecting the temperature difference between inlet water and outlet water to calculate the water temperature TDischarging waterAnd the temperature T of the inlet waterInflow waterTemperature difference Delta T ofWater (W)＝TDischarging water-TInflow water；
T107, determining whether or not Δ T is satisfiedWater target- Δ T equal to or less than the third set valueWater (W)≤△TWater targetIf the third set value is 1 ℃ optionally, entering T110 if the judgment result is positive, and entering T108 and T109 if the judgment result is negative respectively;
t108, when Δ T is satisfiedWater (W)＜△TWater target-a third set point controlling the air conditioner to reduce the inflow;
t109, when satisfying Δ TWater (W)＞△TWater targetControlling the air conditioner to increase water flow;
and T110, controlling the air conditioner to operate at the current water flow.
Further optionally, while performing steps T101-T110, steps T201-T204 are also performed:
t201, detecting the exhaust temperature T of the compressorExhaust of gases；
T202, judging whether T is satisfiedTarget exhaustT is less than or equal to delta T when the fourth setting value is less than or equal toTarget exhaust+ a fourth set value, optionally 2 ℃; if the judgment result is that the program enters T204, judging whether the program enters T203;
t203, the controller receives signals and adjusts the opening P of the throttling device, and the throttling device can be an expansion valve; concrete toneThe section mode is as follows: when T is satisfiedExhaust of gases＜TTarget exhaust-controlling the air conditioner to reduce the opening of the throttling means at a fourth set point; when T is satisfiedExhaust of gases＞TTarget exhaustWhen the fourth set value is positive, the air conditioner is controlled to increase the opening degree of the throttling device;
and T204, keeping the current throttle opening P.
The present embodiments also provide an air conditioner control apparatus comprising one or more processors and a non-transitory computer-readable storage medium storing program instructions that, when executed by the one or more processors, are configured to implement any of the methods described above.
The present embodiments also propose a non-transitory computer-readable storage medium having stored thereon program instructions for implementing any of the methods described above when the program instructions are executed by one or more processors.
The present embodiment also provides an air conditioner, which adopts the method of any one of the above, or includes the above control device, or has the above non-transitory computer readable storage medium.
In one embodiment of the air conditioner, the air conditioner is configured as shown in fig. 4, a front cross-sectional view as shown in fig. 5, a side cross-sectional view as shown in fig. 6, and a system cycle as shown in fig. 7. The air conditioner is integrated and has compact structure. The basic working principle is as follows: the low-temperature low-pressure refrigerant vapor enters the compressor 107 to be compressed into a high-temperature high-pressure state, then enters the condenser 106 to release heat, exchanges heat with water through the water-cooled condenser 106, the condensed refrigerant liquid is throttled and reduced in pressure through the throttling device 105 to be a low-temperature low-pressure two-phase state, then enters the evaporator 102 to be evaporated and absorb heat, cools air (the cooled air is conveyed to the room through the fan to realize refrigeration), and finally the refrigerant vapor is sucked again by the compressor 107 to complete a refrigeration cycle of the system.
The left side and the right side of the air conditioner are respectively provided with a side air inlet, namely a first side air inlet 113 and a second side air inlet 114, the front panel is provided with an air outlet 101, and the air path in the air conditioner is in the direction shown by the arrow in fig. 6. The detachable filter screens are installed at the first side air inlet 113, the second side air inlet 114 and the air outlet 101, oil stains generated in a kitchen are prevented from entering the air conditioner, a user can clean the filter screens conveniently, grids of the air inlet 101 and the air outlet 101 can be kept closed when the air conditioner is not used, and dirt is prevented from entering the air conditioner. The evaporator 102 is arranged perpendicular to the partition 115, parallel to the front panel; the baffle ring 112 is disposed behind the evaporator 102, and plays a role of guiding airflow to enter the centrifugal fan blade, and also can be used to fix the evaporator 102. The air conditioner adopts a centrifugal fan 111, air is sucked through air inlet grilles on two sides, is cooled through an evaporator 102, is guided to the middle part of a centrifugal impeller (the centrifugal impeller axially enters air) through a guide ring 112, and then is thrown out by the impeller, and the cooled air enters a kitchen to realize refrigeration. The push-pull type water collecting tank is arranged in the air conditioner, in the refrigerating process, because the temperature of the evaporator 102 is lower than the dew point temperature of air, water vapor in the air on the surface of the evaporator 102 is condensed into water drops, and generated condensate water slides from the evaporator 102 and then enters the water collecting tray 104. The user can control the air conditioner by touching the control panel 103.
The air-conditioning condenser 106 can be a sleeve type condenser 106, and high-temperature and high-pressure refrigerant vapor enters the outer sleeve space from the upper part, is condensed into liquid and then flows out from the lower part; tap water enters the inner pipe from the lower part, absorbs heat, flows out from the upper part, and performs countercurrent heat transfer with the refrigerant vapor.
The inner pipe of the sleeve-type condenser 106 is tap water, and the space of the outer sleeve is a refrigerant. The inlet of the double pipe condenser 106 is located below the right panel of the air conditioner and connected to the tap water pipe, the inlet is provided with a water valve 118 to control the water inlet, and the outlet is located above the left panel. Running water enters the pipe from a water inlet at the lower part of the side end cover of the double-pipe condenser 106 and flows back and forth for multiple times and then flows out from a water outlet at the upper part of the end cover, so that the pipe of the double-pipe condenser 106 can be always filled with water in the operation, and the water inlet and outlet directions are as shown by arrows in the directions of fig. 4, 5 and 7. The hot water flowing out of the cooling water channel can be used as domestic hot water for users, the temperature of the outlet water can be adjusted by arranging the electric heating module 116 and the mixed flow valve 117 at the water outlet to meet the requirements of the users, the electric heating device is in a closed state by default, and when the temperature of the outlet water cannot meet the requirements, the electric heating device can be started to heat the outlet water; when the temperature of the outlet water is too high, the mixed flow valve 117 can be opened to mix the hot water with the cold water to reach the water temperature required by the user. The sleeve-type condenser 106 is cooled by tap water, and the purpose of preparing hot water is achieved.
The air conditioner of this embodiment can be selected as two condensers, that is, the first condenser and the second condenser, the first condenser can be selected as a plate heat exchanger, the second condenser is a double-pipe heat exchanger, the first condenser and the second condenser are oppositely arranged, as shown in fig. 6, the plate heat exchanger 109 is arranged in the rear side panel of the air conditioner, when the double-pipe condenser 106 is overloaded, heat exchange can be performed between the plate heat exchanger 109 arranged in the rear side panel of the air conditioner and indoor air, and the purpose of heat dissipation is achieved. The liquid inlet end of the double-pipe condenser 106 is connected with the first end of the plate heat exchanger 109 through a first pipeline, the gas outlet of the compressor 107 is connected with the first pipeline through a second pipeline, a first control valve 108 is arranged between the second end of the plate heat exchanger 109 and the second pipeline, a second control valve 110 is arranged on the second pipeline between the first control valve 108 and the first pipeline, and whether the plate heat exchanger 109 is started or not is achieved by controlling the opening and closing of the first control valve 108 and the second control valve 110. The plate heat exchanger 109 is activated when both the first control valve 108 and the second control valve 110 are open, and only the double pipe condenser 106 is activated when the first control valve 108 is closed and the second control valve 110 is open. The air conditioner generates cold energy by adopting a steam compression type refrigeration method, and cools the sleeve type condenser 106 by using tap water, so that the purposes of condensing, radiating and preparing hot water are achieved. The air conditioner is a kitchen air conditioner.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (12)
1. The control method of the kitchen air conditioner is characterized in that the kitchen air conditioner comprises a refrigerant circulating loop consisting of a compressor, an evaporator, a throttling device and a condenser, and further comprises a cooling water path coupled with the condenser, wherein the cooling water path exchanges heat with a refrigerant in the condenser; the control method comprises the following steps:
before starting the compressor to operate, obtaining the initial indoor environment temperature TEnvironment(s)According to the obtained initial indoor environment temperature TEnvironment(s)Determining an initial operating frequency F of a compressor0；
Controlling a compressor to an initial operating frequency F0Operation, when operating for a first set time t0Then, the indoor ambient temperature T is obtainedEnvironment(s)And indoor air-out temperature TAir outlet；
Calculating indoor ambient temperature TAmbient temperatureAnd the temperature T of the outlet airAir outletIs within a first difference range by adjusting the operating frequency of the compressor.
2. The method as claimed in claim 1, wherein said adjusting the operating frequency of the compressor to bring said difference Δ T within a first range of difference includes
Comparing said difference DeltaT with a temperature difference DeltaT1Comparing, and judging whether to adjust the frequency of the compressor according to the comparison result;
when the following conditions are satisfied: delta T is less than Delta T1-a first setpoint controlling the compressor up-conversion operation;
when the following conditions are satisfied: delta T > [ Delta T ]1+ the first set value, controlling the compressor to operate in a frequency reduction mode;
when the following conditions are satisfied: delta T1- Δ T is less than or equal to the first set value1+ firstAnd controlling the compressor to keep running at the current frequency when the difference value Delta T is within a first difference value range.
3. The control method of claim 1, wherein before starting the compressor, if the air conditioner does not receive the damper setting command, the control method further comprises:
after the initial indoor environment temperature is obtained, the initial inner fan rotating speed R is determined according to the obtained initial indoor environment temperature0；
Compressor operating at initial frequency F0When the air conditioner runs, the air conditioner is also controlled to rotate at the initial internal fan rotating speed R0Running;
when the difference value delta T is within a first difference value range, the rotation speed of the inner fan is adjusted to enable the difference value delta T to be within a second difference value range, and the second difference value range is located within the second difference value range.
4. The method as claimed in claim 3, wherein the adjusting the rotation speed of the inner fan to make the difference Δ T within a second difference range comprises
Comparing said difference DeltaT with a temperature difference DeltaT1Comparing, and judging whether to adjust the rotating speed of the inner fan or not according to a comparison result;
when the following conditions are satisfied: delta T is less than Delta T1-a second set value controlling the inner fan to run at an increased speed;
when the following conditions are satisfied: delta T > [ Delta T ]1+ a second set value, controlling the inner fan to run at a reduced speed;
when the following conditions are satisfied: delta T1- Δ T is less than or equal to the second set value1When the difference value delta T is within a second difference value range, controlling the inner fan to keep the current rotating speed to operate;
the first set value is less than the first set value.
5. The control method of the air conditioner according to claim 1, wherein the air conditioner is controlled to operate at a set rotation speed of the internal fan during the operation of the air conditioner.
6. The control method of a kitchen air conditioner according to any one of claims 2-5, characterized in that the control method further comprises:
after the initial indoor environment temperature is obtained, the initial flow M of the heat exchange pipeline is determined according to the obtained initial indoor environment temperature0；
When the difference value delta T is within a second difference value range, the outlet water temperature T of the cooling water channel is obtainedDischarging waterAnd the temperature T of the inlet waterInflow water；
Calculating the temperature T of the waterDischarging waterAnd the temperature T of the inlet waterInflow waterTemperature difference Delta T ofWater (W)And the temperature difference delta T is caused by adjusting the water flow of the cooling water channelWater (W)Within a third temperature differential range.
7. The control method of claim 5, wherein said temperature difference Δ T is adjusted by adjusting water flow rate of said cooling water pathWater (W)Within a third temperature difference range, including
According to Δ TWater (W)Difference from set temperature Delta TWater targetJudging whether the water flow needs to be adjusted or not according to the difference value;
when the following conditions are satisfied: delta TWater (W)＜△TWater target-a third set point controlling the air conditioner to reduce the inflow;
when the following conditions are satisfied: delta TWater (W)＞△TWater targetControlling the air conditioner to increase water flow;
when the following conditions are satisfied: delta TWater target- Δ T equal to or less than the third set valueWater (W)≤△TWater targetAt this time, the temperature difference Δ TWater (W)And controlling the air conditioner to operate at the current water flow in the third temperature difference range.
8. The method of claim 6 or 7, wherein the initial indoor temperature is obtained and then the control method is further performed according to the obtained initial indoor temperatureDetermining the initial opening P of the throttling device according to the initial indoor environment temperature0，
Controlling a compressor to an initial operating frequency F0After running, acquiring the exhaust temperature T of the compressor in real timeExhaust of gasesAnd the exhaust temperature T is adjusted by adjusting the opening degree of the throttling deviceExhaust of gasesWithin a fourth temperature differential range.
9. The control method of a kitchen air conditioner according to claim 7, characterized in that said exhaust temperature T is adjusted by adjusting the opening degree of the throttling deviceExhaust of gasesWithin a fourth temperature difference range, including
According to TExhaust of gasesWith target exhaust value DeltaTTarget exhaustJudging whether the opening of the throttling device needs to be adjusted or not by the difference value, and when the T is metExhaust of gases＜TTarget exhaust-controlling the air conditioner to reduce the opening of the throttling means at a fourth set point;
when T is satisfiedExhaust of gases＞TTarget exhaustWhen the fourth set value is positive, the air conditioner is controlled to increase the opening degree of the throttling device;
when T is satisfiedTarget exhaustT is less than or equal to delta T when the fourth setting value is less than or equal toTarget exhaust+ fourth setting, at which time said exhaust temperature T isExhaust of gasesAnd controlling the air conditioner to keep the current opening operation of the throttling device in the fourth temperature difference range.
10. An air conditioner control device comprising one or more processors and a non-transitory computer readable storage medium having program instructions stored thereon, the one or more processors being configured to implement the method of any one of claims 1-9 when the program instructions are executed by the one or more processors.
11. A non-transitory computer-readable storage medium having stored thereon program instructions which, when executed by one or more processors, are operable to implement the method of any one of claims 1-9.
12. A galley air conditioner employing the method of any one of claims 1-9 or including the control apparatus of claim 10 or having the non-transitory computer readable storage medium of claim 11.
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