CN110793243A - Air conditioner flute pipe device, air conditioner and control method for air outlet adjustment - Google Patents
Air conditioner flute pipe device, air conditioner and control method for air outlet adjustment Download PDFInfo
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- CN110793243A CN110793243A CN201911209989.6A CN201911209989A CN110793243A CN 110793243 A CN110793243 A CN 110793243A CN 201911209989 A CN201911209989 A CN 201911209989A CN 110793243 A CN110793243 A CN 110793243A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 239000003507 refrigerant Substances 0.000 claims description 34
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 239000002826 coolant Substances 0.000 abstract description 3
- 238000007791 dehumidification Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 2
- 206010016322 Feeling abnormal Diseases 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
- F25B41/00—Fluid-circulation arrangements
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
-
- 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
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/84—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 using valves
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
A flute pipe device for an air conditioner, the air conditioner and a control method for air outlet regulation. The invention provides a flute pipe device for an air conditioner, which comprises: the flute pipe is a hollow pipe with a cooling medium flowing inside, and comprises a flute pipe body and a plurality of branches arranged on the flute pipe body, wherein the branches comprise a first branch group consisting of n adjacent branches and a second branch group consisting of m adjacent branches, the first branch group is correspondingly connected to a first part of the heat exchanger, the second branch group is correspondingly connected to a second part of the heat exchanger, n is more than or equal to 1, and m is more than or equal to 1; the flow control valve is arranged between the first shunt group and the second shunt group on the flute pipe body, the flow balance of the first part of the heat exchanger and the second part of the heat exchanger is realized by adjusting the resistance distribution of the first shunt group and the second shunt group of the flute pipe, and the problem of poor comfort of an indoor unit of the air conditioner in a heating state is solved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a flute pipe device for an air conditioner, the air conditioner and a control method for air outlet adjustment.
Background
With the rapid development of the air conditioner industry, the requirement on the comfort of air conditioner products is higher and higher, and the requirement on the comfort of the air conditioner products is refined to the use scenes of different external environment working conditions. At present, the round cabinet machine heating comfort is poor, and the problem widely exists in the whole air conditioner industry, and the analysis of the main reason is that the use of the flute pipe of the inner machine evaporator leads to large upper refrigerant flow of the heat exchanger and small lower flow of the heat exchanger due to large flow difference of each branch in a heating state. The problem that the upper air outlet temperature is higher and the lower air outlet temperature is lower can be caused by reflecting the heating air outlet temperature of the whole circular cabinet. Meanwhile, because the density of hot air is low, hot air cannot fall to the ground, and the circular cabinet machine is poor in comfort in a heating state.
Disclosure of Invention
The invention solves the problem of uneven outlet air temperature of different air outlets of the air conditioner.
In order to solve the above problems, the present invention provides a pipe device for a flute of an air conditioner, including:
the flute pipe is a hollow pipe with a cooling medium flowing inside, and comprises a flute pipe body and a plurality of branches arranged on the flute pipe body, wherein the branches comprise a first branch group consisting of n adjacent branches and a second branch group consisting of m adjacent branches, the branches in the first branch group are correspondingly connected to a first part of the heat exchanger, the branches in the second branch group are correspondingly connected to a second part of the heat exchanger, n is more than or equal to 1, and m is more than or equal to 1;
and the flow control valve is arranged on the pipe body of the flute between the first shunt group and the second shunt group and used for controlling the resistance distribution of the first shunt group and the second shunt group.
Therefore, the flow control valve is arranged between the first shunt group and the second shunt group on the pipe body of the flute, the resistance distribution of the first shunt group and the second shunt group of the flute pipe is adjusted, and the flow balance of the first part of the heat exchanger and the second part of the heat exchanger is realized.
Further, m is larger than n, wherein, in the state that the flow control valve is fully opened, the flow of the first part of the heat exchanger is larger than the flow of the second part of the heat exchanger.
For the heat exchanger part with small flow, the corresponding branch group can be provided with a larger number of branches, so that the resistance of the refrigerant in the branch group is further reduced.
According to another aspect of the present invention, there is also provided an air conditioner, an indoor unit of the air conditioner including:
the heat exchanger comprises the flute pipe device for the air conditioner, wherein the flow rate of the first part of the heat exchanger is greater than that of the second part of the heat exchanger in the state that the flow control valve is fully opened;
and the at least two air outlets comprise a first air outlet and a second air outlet, wherein the air outlet of the first air outlet exchanges heat through a first part of the heat exchanger, and the air outlet of the second air outlet exchanges heat through a second part of the heat exchanger.
Adopt the flute pipe that has flow control valve to carry out flow control through air conditioner indoor unit heat exchanger, can improve the air-out temperature of the less heat exchanger of flow for the temperature of a plurality of air outlets is close, improves the relatively poor problem of travelling comfort under the heating state of air conditioner indoor unit.
Further, the air conditioner indoor unit further includes:
and the air outlet temperature sensor is arranged at least one air outlet of the inner machine and used for detecting the air outlet temperature of the inner machine.
The air outlet temperature that the air outlet temperature sensor that sets up through the air conditioner indoor set detected and obtains adjusts the aperture of flow control valve, reaches the temperature of predetermineeing until the air outlet temperature to improve the travelling comfort of air-out.
Further, the air outlet temperature sensor is a thermocouple sensor or a thermal resistance sensor.
Furthermore, the air conditioner indoor unit is a cabinet type air conditioner, the first air outlet is an upper air outlet, the second air outlet is a lower air outlet, the branches in the first branch group are correspondingly connected to the upper part of a cabinet type heat exchanger, and air subjected to heat exchange through the upper part of the cabinet type heat exchanger flows out of the upper air outlet; the branches in the second branch group are correspondingly connected to the lower part of the cabinet type machine heat exchanger, and air exchanging heat through the lower part of the cabinet type machine heat exchanger flows out of the lower air outlet.
According to another aspect of the present invention, there is provided a control method for adjusting outlet air of an air conditioner, the control method comprising:
s1, judging the operation mode of the air conditioner, if the current air conditioner is in a first mode operation, turning to S2, wherein in the first mode, the refrigerant in the flute pipe flows to a plurality of branches from the flute pipe body;
and S2, acquiring the current air outlet temperature of at least one air outlet of the air conditioner indoor unit, comparing the current air outlet temperature with a preset temperature, and adjusting the opening of the flow control valve according to the comparison result of the current air outlet temperature and the preset temperature until the air outlet temperature is equal to the preset temperature.
From this, through the air-out temperature regulation flute pipe first branch group that detects and the resistance distribution of second branch group, realize flow control, can change the flow distribution of the different parts of heat exchanger to improve the uneven condition of a plurality of air outlet air-out temperatures of air conditioner internal unit.
Further, the control method further includes:
and S0, setting the initial state of the flow control valve to be a fully open state.
The initial state of the flow control valve is set to be fully opened, so that the opening degree of the flow control valve can be conveniently controlled, and the control method is effectively simplified.
Further, the step S2 includes:
when the acquired current air outlet temperature is the air outlet temperature of the first air outlet, if the current air outlet temperature is higher than a first preset temperature, the opening degree of the flow control valve is reduced;
and when the acquired current air outlet temperature is the air outlet temperature of the second air outlet, if the current air outlet temperature is lower than a second preset temperature, the opening degree of the flow control valve is reduced.
Therefore, when the air outlet temperature of the first air outlet is higher than the air outlet temperature of the second air outlet in the initial state that the flow control valve is completely opened, when at least one of the conditions that the air outlet temperature of the current first air outlet is higher than the first preset temperature or the air outlet temperature of the current second air outlet is lower than the second preset temperature is met through judgment, the opening degree of the flow control valve can be determined to be required to be reduced currently, so that the refrigerant flow of the first part of the heat exchanger is reduced, and the refrigerant flow of the second part of the heat exchanger is increased.
Further, the step S2 includes:
when the current air-out temperature that acquires is the air-out temperature of first air outlet and the air-out temperature of second air outlet:
if the current air outlet temperature of the first air outlet is higher than a first preset temperature and the air outlet temperature of the second air outlet is lower than a second preset temperature, the opening degree of the flow control valve is reduced;
and if the current air outlet temperature of the first air outlet is less than the first preset temperature and the air outlet temperature of the second air outlet is greater than the second preset temperature, the opening degree of the flow control valve is increased.
Therefore, the situation that whether the temperatures of the two air outlets are large and small cannot be determined only by the temperature of the single air outlet under the condition that the initial state of the flow control valve is not set or the initial state of the flow control valve is uncertain can be avoided, and if the opening of the flow control valve is adjusted to a proper opening, the adjusting direction of the flow control valve cannot be accurately judged according to the air outlet temperature of the single air outlet.
Further, the step S1 further includes:
and if the current air conditioner operates in a second mode, the flow control valve is kept in a fully opened state, wherein in the second mode, the refrigerant in the flute pipe flows to the flute pipe body from a plurality of branches.
The second mode comprises a state that the refrigerant flows to the flute pipe body from a plurality of branches under a refrigeration mode, a dehumidification mode, a ventilation mode or a self-cleaning mode.
Therefore, the flow control valve is kept in a fully-opened state under the second mode, so that the gas refrigerant generated by evaporation of the inner machine heat exchanger can smoothly flow out of the flow control valve without generating extra refrigerant flowing pressure loss.
Further, the step S1 further includes: and if the current air conditioner is in the shutdown state, the flow control valve keeps in the fully-opened state.
According to still another aspect of the present invention, there is provided an air conditioner including:
a readable storage medium to store executable instructions;
one or more processors to perform the control method of claims 7-14 in accordance with the executable instructions.
The beneficial effects of the air conditioner are the same as those of the control method for adjusting the air outlet of the air conditioner, and are not repeated here.
Drawings
Fig. 1 is a schematic structural view of a flute pipe assembly for an air conditioner according to the present invention;
fig. 2 is a flowchart of a control method for adjusting outlet air of an air conditioner according to the present invention.
Description of reference numerals:
1-a flute tube; 2-a flow control valve; 101-flute tube body; 102-splitting; 1021-a first shunt group; 1022-second way group.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In one exemplary embodiment of the present invention, a pipe arrangement for a flute of an air conditioner is provided. Fig. 1 is a schematic structural view of a pipe unit for an air conditioner according to the present invention. As shown in fig. 1, the flute pipe device for the air conditioner includes a flute pipe 1 and a flow control valve 2. The traditional round cabinet type air conditioner has the advantages that due to the use of the flute pipes, the flow difference of the branch flows of each branch in the heating state is large, the flow of the refrigerant on the upper part of the heat exchanger is large, and the flow of the refrigerant on the lower part of the heat exchanger is small. Through adopting the flute pipe device in this embodiment, can improve the air-out temperature of the less heat exchanger lower part of flow for the temperature of a plurality of air outlets is close, improves the relatively poor problem of travelling comfort under the heating state of round cabinet machine.
Referring to fig. 1, the flute pipe is a hollow pipe for cooling medium to flow inside, and includes a flute pipe body 101 and a plurality of branches 102 disposed on the flute pipe body, where the plurality of branches includes a first branch group 1021 formed by n adjacent branches and a second branch group 1022 formed by m adjacent branches, where a branch in the first branch group is correspondingly connected to a first part of the heat exchanger, a branch in the second branch group is correspondingly connected to a second part of the heat exchanger, where n is greater than or equal to 1, and m is greater than or equal to 1;
the flow control valve is arranged on the pipe body of the flute between the first shunt group and the second shunt group, and flow control is realized by adjusting the resistance distribution of the first shunt group and the second shunt group of the flute pipe.
Due to the arrangement of the heat exchanger of the air conditioner, the flow of the first part of the heat exchanger is larger than that of the second part of the heat exchanger in the state that the flow control valve is fully opened. Therefore, for the heat exchanger part with small flow, the corresponding branch group can be provided with a larger number of branches, namely m is larger than n, so that the resistance of the refrigerant in the branch group is further reduced.
Illustratively, the air conditioner is a round cabinet type indoor unit, the heat exchanger of the round cabinet type indoor unit comprises the flute pipe device for the air conditioner, wherein, when the flow control valve is completely opened, the refrigerant flow at the upper part of the heat exchanger is larger than the refrigerant flow at the lower part of the heat exchanger.
Generally, the circular cabinet machine includes at least two air outlets, which are a first air outlet and a second air outlet. In an embodiment, the first air outlet is an upper air outlet, the second air outlet is a lower air outlet, the branches in the first branch group are correspondingly connected to the upper part of the cabinet type heat exchanger, and air exchanging heat through the upper part of the cabinet type heat exchanger flows out from the upper air outlet; the branches in the second branch group are correspondingly connected to the lower part of the cabinet type machine heat exchanger, and air exchanging heat through the lower part of the cabinet type machine heat exchanger flows out of the lower air outlet. Under the condition that the flow control valve is fully opened, in other words, under the condition that the flow control valve does not work, due to the arrangement of the flute pipes in the heat exchanger, the flow of each branch circuit corresponding to the upper part and the lower part of the heat exchanger is different, and therefore the outlet air temperatures corresponding to different air outlets are different. Specifically, the refrigerant flow at the upper part of the round cabinet heat exchanger is large, and the refrigerant flow at the lower part of the heat exchanger is small, so that the air outlet temperature of the upper air outlet is higher than that of the lower air outlet.
Therefore, the flute pipe device shown in fig. 1 is arranged on the round cabinet heat exchanger, the flow control valve is additionally arranged on the flute pipe, the flow control valve is adopted to adjust the resistance distribution of the upper part and the lower part of the flute pipe in heating and cooling states to realize flow control, the improvement of heating comfort is finally realized, and meanwhile, the capacity and the energy efficiency in cooling cannot be influenced.
Specifically, as shown in fig. 1, the flute tube of the round cabinet heat exchanger has 5 branches, wherein 2 branch outlets at the front end correspond to the upper part of the evaporator of the round cabinet, and 3 branch outlets at the rear end correspond to the lower part of the evaporator of the round cabinet. The lower part of the evaporator corresponds to more branches, so that the resistance at the rear end of the flute pipe can be further reduced, the refrigerant flow at the lower part of the heat exchanger is further increased, and the air outlet temperature of the lower air outlet is improved. It is understood that the number of the corresponding branch outlets of the evaporator upper part and the evaporator lower part can be set according to the concrete condition of the actual heat exchanger.
In order to determine the opening degree of the flow control valve, in some embodiments, the air conditioner internal unit further includes an air outlet temperature sensor, and the air outlet temperature sensor is disposed at least one air outlet of the internal unit and is used for detecting the air outlet temperature of the internal unit. And adjusting the opening degree of the flow control valve through detecting the obtained air outlet temperature until the air outlet temperature reaches the preset temperature. For example, the outlet air temperature sensor may be a thermocouple sensor or a thermal resistance sensor.
Therefore, the problems that the upper air outlet temperature is high and the lower air outlet temperature is low when the heating air outlet temperature of the round cabinet complete machine is high can be solved, the difference of the air outlet temperatures of the upper air outlet and the lower air outlet is balanced, and the problem that the round cabinet machine is poor in comfort in the heating state due to the fact that hot air cannot fall to the ground due to the fact that the hot air density is low is avoided.
In a second exemplary embodiment of the present invention, a method for controlling the air conditioner outlet air conditioning is provided. Fig. 2 is a flowchart of a control method for adjusting outlet air of an air conditioner according to the present invention. As shown in fig. 2, the control method for adjusting the outlet air of the air conditioner includes:
s1, judging the operation mode of the air conditioner, if the current air conditioner is in a first mode operation, turning to S2, wherein in the first mode, the refrigerant in the flute pipe flows to a plurality of branches from the flute pipe body;
s2, acquiring the current air outlet temperature of at least one air outlet of an air conditioner indoor unit, comparing the current air outlet temperature with a preset temperature, and adjusting the opening of a flow control valve according to the comparison result of the current air outlet temperature and the preset temperature until the air outlet temperature is equal to the preset temperature;
the first mode comprises a state that the refrigerant flows from the flute pipe body to the plurality of branches in a heating mode or a self-cleaning mode.
Further, the step S1 further includes:
and if the current air conditioner operates in a second mode, the flow control valve is kept in a fully opened state, wherein in the second mode, the refrigerant in the flute pipe flows to the flute pipe body from a plurality of branches. The second mode comprises a state that the refrigerant flows to the flute pipe body from a plurality of branches under a refrigeration mode, a dehumidification mode, a ventilation mode or a self-cleaning mode.
Therefore, the flow control valve is kept in a fully-opened state under the second mode, so that the gas refrigerant generated by evaporation of the inner machine heat exchanger can smoothly flow out of the flow control valve without generating extra refrigerant flowing pressure loss.
And if the current air conditioner is in the shutdown state, the flow control valve keeps in the fully-opened state.
In some embodiments, to simplify the control method, the initial state of the flow control valve may be set to be fully open before the flow control valve is adjusted, so that the flow control valve is adjusted from the fully open state to the gradually closed state during the adjustment of the opening degree control of the flow control valve, so that the opening degree of the flow control valve is gradually adjusted to a proper magnitude. Specifically, the control method further includes:
and S0, setting the initial state of the flow control valve to be a fully open state.
In the case where the initial state of the flow control valve is the fully open state, it is only necessary to determine when the opening degree of the flow control valve needs to be decreased, and therefore, the step S2 further includes:
when the acquired current air outlet temperature is the air outlet temperature of the first air outlet, if the current air outlet temperature is higher than a first preset temperature, the opening degree of the flow control valve is reduced; and/or
And when the acquired current air outlet temperature is the air outlet temperature of the second air outlet, if the current air outlet temperature is lower than a second preset temperature, the opening degree of the flow control valve is reduced.
Therefore, when the air outlet temperature of the first air outlet is higher than the air outlet temperature of the second air outlet in the initial state that the flow control valve is completely opened, when at least one of the conditions that the air outlet temperature of the current first air outlet is higher than the first preset temperature or the air outlet temperature of the current second air outlet is lower than the second preset temperature is met through judgment, the flow of the refrigerant of the first part of the heat exchanger is too large and the flow of the refrigerant of the second part of the heat exchanger is too small, so that the opening degree of the flow control valve needs to be reduced, the flow of the refrigerant of the first part of the heat exchanger is reduced, and the flow of the refrigerant of the second part of the heat.
In a case where the initial state of the flow control valve is not set or the initial state of the flow control valve is uncertain, the determination needs to be performed by using the temperatures detected by the first air outlet and the second air outlet, specifically, the step S2 includes:
when the current air-out temperature that acquires is the air-out temperature of first air outlet and the air-out temperature of second air outlet:
if the current air outlet temperature of the first air outlet is higher than a first preset temperature and the air outlet temperature of the second air outlet is lower than a second preset temperature, the opening degree of the flow control valve is reduced;
and if the current air outlet temperature of the first air outlet is less than the first preset temperature and the air outlet temperature of the second air outlet is greater than the second preset temperature, the opening degree of the flow control valve is increased.
Therefore, the situation that whether the temperatures of the two air outlets are large and small cannot be determined only by the temperature of the single air outlet under the condition that the initial state of the flow control valve is not set or the initial state of the flow control valve is uncertain can be avoided, and if the opening of the flow control valve is adjusted to a proper opening, the adjusting direction of the flow control valve cannot be accurately judged according to the air outlet temperature of the single air outlet.
In one embodiment, a round cabinet air conditioner using a flute pipe device with a flow control valve, the method for controlling the air outlet regulation of the air outlet air conditioner comprises:
the air conditioner is started, and the flow control valve is in a full-open state by default when the air conditioner is started;
judging a starting operation mode, and controlling the opening of the flow control valve in a corresponding mode according to a judgment result by judging whether the starting operation mode is a heating mode or other modes:
if the air conditioner is in a heating mode, the flow control valve is adjusted to a half-open state by the following means:
adjusting the actual opening condition of the flow control valve according to the outlet air temperature, for example, setting a preset outlet air temperature requirement to be 37 ℃ in order to prevent the hot air from feeling bad when blowing, arranging a thermocouple at the upper outlet, detecting the outlet air temperature at the upper outlet, and reducing the opening of the flow control valve until the outlet air temperature reaches 37 ℃ if the current outlet air temperature is higher than 37 ℃. The opening degree of the flow control valve is the result of matching the air outlet temperature of the air outlet in the heating state, and the purpose is to improve the air outlet temperature of the lower air outlet as much as possible and improve the heating comfort.
If the air conditioner is in other control modes, the flow control valve is kept in a fully-opened state, so that gas refrigerants generated by evaporation of the evaporator of the circular cabinet machine can smoothly flow out of the flow control valve, and extra refrigerant flowing pressure loss is avoided. Wherein the other modes comprise a cooling mode, a dehumidification mode, a ventilation mode and other common modes.
Particularly, in a special mixing mode such as evaporator self-cleaning, the method can be regarded as a cooling and heating mixing mode, the steps can be disassembled into two steps of heating and other control modes, the control method of the heating mode is adopted for adjustment in the heating mode, and the fully-opened state of the flow control valve is kept in other modes.
After the air conditioner is shut down, the flow control valve is restored to a full-open state by default.
In a third exemplary embodiment of the present invention, there is provided an air conditioner including: a readable storage medium and one or more processors, wherein the readable storage medium is configured to store executable instructions; the one or more processors execute the control method according to the second embodiment according to the executable instructions.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (15)
1. A pipe device for a flute of an air conditioner, comprising:
the flute pipe (1) is a hollow pipe with a refrigerant flowing inside, and comprises a flute pipe body (1) and a plurality of branches (102) arranged on the flute pipe body (1), wherein the branches (102) comprise a first branch group (1021) formed by n adjacent branches (102) and a second branch group (1022) formed by m adjacent branches (102), the first branch group (1021) is correspondingly connected to a first part of a heat exchanger, the second branch group (1022) is correspondingly connected to a second part of the heat exchanger, n is more than or equal to 1, and m is more than or equal to 1;
the flow control valve (2) is arranged between the first shunt group (1021) and the second shunt group (1022) on the flute pipe body (1) and used for controlling the resistance distribution of the first shunt group (1021) and the second shunt group (1022).
2. The flute pipe arrangement for an air conditioner according to claim 1, wherein m > n, wherein the flow rate of the first part of the heat exchanger is greater than the flow rate of the second part of the heat exchanger in a state where the flow control valve (2) is fully opened.
3. An air conditioner, characterized in that, the interior machine of the air conditioner includes:
a heat exchanger comprising the flute tube arrangement for an air conditioner as claimed in claim 1 or 2, wherein in a state where said flow control valve (2) is fully opened, a flow rate of a first portion of said heat exchanger is greater than a flow rate of a second portion of said heat exchanger;
and the at least two air outlets comprise a first air outlet and a second air outlet, wherein the air outlet of the first air outlet exchanges heat through a first part of the heat exchanger, and the air outlet of the second air outlet exchanges heat through a second part of the heat exchanger.
4. The air conditioner according to claim 3, further comprising:
and the air outlet temperature sensor is arranged at least one air outlet of the inner machine and used for detecting the air outlet temperature of the inner machine.
5. The air conditioner according to claim 3, wherein the outlet air temperature sensor is a thermocouple sensor or a thermal resistance sensor.
6. The air conditioner according to any one of claims 3-5, wherein the air conditioner indoor unit is a cabinet type air conditioner, the first air outlet is an upper air outlet, the second air outlet is a lower air outlet, the branches (102) of the first branch group (1021) are correspondingly connected to the upper part of a cabinet type heat exchanger, and air exchanging heat via the upper part of the cabinet type heat exchanger flows out from the upper air outlet; branches (102) in the second branch group (1022) are correspondingly connected to the lower portion of the cabinet type machine heat exchanger, and air exchanging heat through the lower portion of the cabinet type machine heat exchanger flows out of the lower air outlet.
7. A control method for adjusting air outlet of an air conditioner according to any one of claims 3-6, wherein the control method comprises:
s1, judging the operation mode of the air conditioner, if the current air conditioner is in a first mode operation, turning to S2, wherein in the first mode, the refrigerant in the flute pipe flows to a plurality of branches from the flute pipe body;
and S2, acquiring the current air outlet temperature of at least one air outlet of the air conditioner indoor unit, comparing the current air outlet temperature with a preset temperature, and adjusting the opening of the flow control valve according to the comparison result of the current air outlet temperature and the preset temperature until the air outlet temperature is equal to the preset temperature.
8. The control method according to claim 7, characterized by further comprising:
and S0, setting the initial state of the flow control valve to be a fully open state.
9. The control method according to claim 8, wherein the step S2 includes:
when the acquired current air outlet temperature is the air outlet temperature of the first air outlet, if the current air outlet temperature is higher than a first preset temperature, the opening degree of the flow control valve is reduced;
and when the acquired current air outlet temperature is the air outlet temperature of the second air outlet, if the current air outlet temperature is lower than a second preset temperature, the opening degree of the flow control valve is reduced.
10. The control method according to claim 7, wherein the step S2 includes:
when the current air-out temperature that acquires is the air-out temperature of first air outlet and the air-out temperature of second air outlet:
if the current air outlet temperature of the first air outlet is higher than a first preset temperature and the air outlet temperature of the second air outlet is lower than a second preset temperature, the opening degree of the flow control valve is reduced;
and if the current air outlet temperature of the first air outlet is less than the first preset temperature and the air outlet temperature of the second air outlet is greater than the second preset temperature, the opening degree of the flow control valve is increased.
11. The control method as claimed in claim 7, wherein the first mode includes a state that the refrigerant flows from the flute pipe body to the plurality of branches in the heating mode or the self-cleaning mode.
12. The control method according to claim 7, wherein the step S1 further includes:
and if the current air conditioner operates in a second mode, the flow control valve is kept in a fully opened state, wherein in the second mode, the refrigerant in the flute pipe flows to the flute pipe body from a plurality of branches.
13. The control method of claim 12, wherein the second mode comprises a state in which the refrigerant flows from the plurality of branches to the pipe body in a cooling mode, a dehumidifying mode, a ventilating mode, or a self-cleaning mode.
14. The control method according to claim 7, wherein the step S1 further includes:
and if the current air conditioner is in the shutdown state, the flow control valve keeps in the fully-opened state.
15. An air conditioner, comprising:
a readable storage medium to store executable instructions;
one or more processors to perform the control method of claims 7-14 in accordance with the executable instructions.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911209989.6A CN110793243A (en) | 2019-11-29 | 2019-11-29 | Air conditioner flute pipe device, air conditioner and control method for air outlet adjustment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911209989.6A CN110793243A (en) | 2019-11-29 | 2019-11-29 | Air conditioner flute pipe device, air conditioner and control method for air outlet adjustment |
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| JP2000065399A (en) * | 1998-08-20 | 2000-03-03 | Taisei Corp | Refrigerant pipeline in air-conditioning facility |
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Application publication date: 20200214 |