CN109269102A - Air energy water heater and its control method - Google Patents
Air energy water heater and its control method Download PDFInfo
- Publication number
- CN109269102A CN109269102A CN201811416245.7A CN201811416245A CN109269102A CN 109269102 A CN109269102 A CN 109269102A CN 201811416245 A CN201811416245 A CN 201811416245A CN 109269102 A CN109269102 A CN 109269102A
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- Prior art keywords
- return air
- temperature
- air temperature
- heating component
- heating
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
- F24H4/04—Storage heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention proposes a kind of air energy water heater and its control method, wherein air energy water heater includes: water tank；Heat pump system；Heating component；First temperature detecting unit, for detecting heating component backwards to the return air temperature of evaporator side, to generate the first return air temperature；Second temperature detection unit, for detecting the return air temperature between the return side of evaporator and heating component, to generate the second return air temperature；Control unit, for being controlled according to the first return air temperature and the second return air temperature heating component and compressor.Thus, by the return side in evaporator, heating component is set, it can guarantee the return air temperature of the return side of evaporator when environment temperature is lower, and then guaranteeing the heating capacity under air energy water heater low temperature environment, the defrosting problem being also avoided that under low temperature environment avoids evaporation side frosting, therefore system arrangement can also be simplified, do not need to increase four-way valve module, but also be able to achieve real electricity separation, ensure user using safe.
Description
Technical field
The present invention relates to air energy water heater technical field more particularly to a kind of air energy water heaters and a kind of air energy thermal
The control method of hydrophone.
Background technique
Monoblock type air energy water heater mainly passes through driven compressor heat pump system, absorbs the thermal energy in air into water,
Water is heated with realizing.In the related technology, evaporator is limited by machine volume, and general volume is also smaller, still,
It has problems in that, when heat pump system is lesser, the ability of complete machine decays larger, low-temperature heating capacity at low ambient temperatures
It is small, cause under low temperature environment, complete machine heating time is longer.
In order to reduce heating time, the setting electric heating group in the water tank of air energy water heater also proposed in the related technology
The technical solution of part can be improved the heating capacity of air energy water heater under low temperature environment, but it has problems in that, Wu Fabao
Electricity separation is demonstrate,proved, there are security hidden troubles.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, the first purpose of this invention is to propose a kind of air energy water heater, it can guarantee air energy water heater
Heating capacity under low temperature environment, at the same realize water power be isolated, ensure user using safe.
Second object of the present invention is to propose a kind of control method of air energy water heater.
In order to achieve the above object, a kind of air energy water heater that first aspect present invention embodiment proposes includes: water tank；To institute
The heat pump system that the water in water tank is heated is stated, the heat pump system includes the compressor being arranged in outside the water tank and evaporation
Device and the condenser being arranged in the water tank；The heating component of the return side of the evaporator is set；It is arranged described
Backwards to the first temperature detecting unit of the evaporator side, first temperature detecting unit is used to detect described heating component
Heating component backwards to the evaporator side return air temperature, to generate the first return air temperature；Returning for the evaporator is set
Second temperature detection unit between wind side and the heating component, the second temperature detection unit is for detecting the evaporation
Return air temperature between the return side of device and the heating component, to generate the second return air temperature；Control unit, the control are single
It is first to be connected with first temperature detecting unit, the second temperature detection unit, the heating component and the compressor, institute
Control unit is stated to control the heating component and the compressor according to first return air temperature and the second return air temperature
System.
The air energy water heater proposed according to embodiments of the present invention is arranged heating component in the return side of evaporator, passes through
First temperature detecting unit detection heating component returning backwards to evaporator side of the heating component backwards to evaporator side is set
Air temperature is to generate the first return air temperature, and the inspection of the second temperature by being arranged between the return side of evaporator and heating component
The return air temperature surveyed between the return side and heating component of unit detection evaporator is controlled single with generating the second return air temperature
Member controls the heating component and the compressor according to the first return air temperature and the second return air temperature.Pass through as a result,
Heating component is set in the return side of evaporator, can guarantee the return air temperature of the return side of evaporator when environment temperature is lower
Degree, and then guarantee the heating capacity under air energy water heater low temperature environment, the defrosting problem being also avoided that under low temperature environment avoids
Evaporation side frosting, therefore can also simplify system arrangement, it does not need to increase four-way valve module, but also be able to achieve real water power
Separation, ensure user using safe.
In addition, air energy water heater according to the above embodiment of the present invention can also have the following additional technical features:
According to one embodiment of present invention, the heat pump system further includes the blower of the relatively described evaporator setting,
In, described control unit is used for during heat pump system starting, controls the blower starting, and obtain described first
Return air temperature, and when first return air temperature is less than first temperature threshold, it is default in blower starting first
The heating component starting is controlled after time.
According to one embodiment of present invention, described control unit is also used to after the heating component starts, and obtains institute
The second return air temperature is stated, and adjusts the heating power of the heating component according to second return air temperature, until described second
When return air temperature reaches preset temperature range, the compressor start is controlled.
According to one embodiment of present invention, described control unit is also used to be greater than or equal in first return air temperature
When first temperature threshold, the compressor start is controlled after the blower starts first preset time.
According to one embodiment of present invention, described control unit is also used to during the heat pump system is run,
First return air temperature is obtained, and when first return air temperature is less than the first temperature threshold, controls the heating component
Starting.
According to one embodiment of present invention, described control unit is also used to after the heating component starts, and obtains institute
The second return air temperature is stated, and adjusts the heating power of the heating component according to second return air temperature, until described second
Return air temperature reaches preset temperature range.
According to one embodiment of present invention, described control unit is also used to adjusting institute according to second return air temperature
Before the heating power for stating heating component, the difference between first return air temperature and first temperature threshold is obtained, and
Default heating power is obtained according to the difference, and the heating power of the control heating component reaches the default heating function
Rate.
According to one embodiment of present invention, the heating component is multisection type heating component, by adjusting the multistage
The output percentage of formula heating component controls the heating power of the heating component.
According to one embodiment of present invention, the air energy water heater further includes the third temperature being arranged in the water tank
Detection unit is spent, the third temperature detecting unit is used to detect the water temperature in the water tank, wherein described control unit is used for
When water temperature in the water tank reaches set water temperature, it is out of service to control the heat pump system.
According to one embodiment of present invention, described control unit is first controlled when the control heat pump system is out of service
It makes the compressor to stop, and controls the heating component after second preset time of compressor shutdown and stop output, with
And to control the blower out of service after the heating component stops output third preset time.
In order to achieve the above objectives, second aspect of the present invention embodiment proposes a kind of control method of air energy water heater,
Wherein, the air energy water heater includes water tank, the heat pump system heated to the water in the water tank and is arranged in institute
State the heating component of the return side of evaporator, the heat pump system include the compressor being arranged in outside the water tank and evaporator with
And the condenser in the water tank is set, wherein the described method comprises the following steps: detecting the heating component backwards to described
The return air temperature of evaporator side, to generate the first return air temperature；Detect the return side and the heating component of the evaporator
Between return air temperature, to generate the second return air temperature；Added according to first return air temperature and the second return air temperature to described
Hot component and the compressor are controlled.
Heating is arranged in the return side of evaporator in the control method of the air energy water heater proposed according to embodiments of the present invention
Component to generate the first return air temperature, and is steamed by detection heating component backwards to the return air temperature of evaporator side by detection
The return air temperature between the return side and heating component of device is sent out, to generate the second return air temperature, and then according to the first return air temperature
Heating component and compressor are controlled with the second return air temperature.Heating group is arranged by the return side in evaporator as a result,
Part can guarantee the return air temperature of the return side of evaporator when environment temperature is lower, and then guarantee air energy water heater low temperature
Heating capacity under environment, the defrosting problem being also avoided that under low temperature environment, avoids evaporation side frosting, therefore can also simplify and be
System arrangement does not need to increase four-way valve module, but also is able to achieve real electricity separation, ensure user using safe.
In addition, the control method of air energy water heater according to the above embodiment of the present invention can also have it is following additional
Technical characteristic:
According to one embodiment of present invention, the heat pump system further includes the blower of the relatively described evaporator setting,
In, it is described that control packet is carried out to the heating component and the compressor according to first return air temperature and the second return air temperature
It includes: during heat pump system starting, controlling the blower starting, and obtain first return air temperature；Described
When first return air temperature is less than first temperature threshold, the heating group is controlled after the blower starts the first preset time
Part starting.
According to one embodiment of present invention, the control method of the air energy water heater further include: in the heating group
After part starting, second return air temperature is obtained, and adjusts the heating function of the heating component according to second return air temperature
Rate, until controlling the compressor start when second return air temperature reaches preset temperature range.
According to one embodiment of present invention, the control method of the air energy water heater further include: at described first time
When air temperature is greater than or equal to first temperature threshold, the pressure is controlled after the blower starts first preset time
The starting of contracting machine.
According to one embodiment of present invention, described to be added according to first return air temperature and the second return air temperature to described
It includes: to obtain the first return air temperature during heat pump system operation that hot component and the compressor, which carry out control,
Degree, and when first return air temperature is less than the first temperature threshold, control the heating component starting.
According to one embodiment of present invention, the control method of the air energy water heater further include: in the heating group
After part starting, second return air temperature is obtained, and adjusts the heating function of the heating component according to second return air temperature
Rate, until second return air temperature reaches preset temperature range.
According to one embodiment of present invention, in the heating function for adjusting the heating component according to second return air temperature
Before rate, further includes: obtain the difference between first return air temperature and first temperature threshold；It is obtained according to the difference
Take default heating power；The heating power for controlling the heating component reaches the default heating power.
According to one embodiment of present invention, the heating component is multisection type heating component, by adjusting the multistage
The output percentage of formula heating component controls the heating power of the heating component.
According to one embodiment of present invention, the control method of the air energy water heater further include: detect the water tank
Interior water temperature；When water temperature in the water tank reaches set water temperature, it is out of service to control the heat pump system.
According to one embodiment of present invention, it includes: first to control the pressure that the control heat pump system is out of service
Contracting machine stops, and controls the heating component after second preset time of compressor shutdown and stop output；In the heating
It is out of service that the blower is controlled after component stopping output third preset time.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the block diagram according to the air energy water heater of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram according to the air energy water heater of the horizontal type wall-mounted of a specific embodiment of the invention；
Fig. 3 is the structural schematic diagram according to the vertical air energy water heater of a specific embodiment of the invention；
Fig. 4 is the block diagram according to the air energy water heater of one embodiment of the invention；
Fig. 5 is the flow diagram according to the control method of the air energy water heater of the embodiment of the present invention；
Fig. 6 be according to one embodiment of the invention according to the first return air temperature and second return air temperature to heating component and
The flow diagram for the control method that compressor is controlled；
Fig. 7 is according to the first return air temperature and the second return air temperature according to another embodiment of the present invention to heating component
The flow diagram of the control method controlled with compressor；
Fig. 8 is according to the first return air temperature and the second return air temperature according to another embodiment of the invention to heating component
The flow diagram of the control method controlled with compressor；
Fig. 9 is the flow diagram according to the control method of the air energy water heater of one embodiment of the invention；
Figure 10 is the flow diagram according to the control method of the air energy water heater of a specific embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the air energy water heater and its control method of the embodiment of the present invention are described.
Fig. 1 is the block diagram according to the air energy water heater of the embodiment of the present invention.
As shown in Figure 1, air energy water heater 100 includes: water tank 1, heat pump system 2, heating component 3, the first temperature detection
Unit 4, second temperature detection unit 5 and control unit 6.
Wherein, as Figure 2-3, heat pump system 2 heats the water in water tank 1, and heat pump system 2 includes being arranged in water
Compressor 21 and evaporator 22 outside case 1 and the condenser 7 being arranged in water tank 1.Wherein, the exhaust outlet and water of compressor 21
The entrance of condenser 7 in case 1 is connected, and the outlet of condenser 7 is connected with the entrance of throttle part 8, the outlet of throttle part 8 with
The entrance of evaporator 24 is connected, and the outlet of evaporator 24 is connected with the gas returning port of compressor 21, to constitute the embodiment of the present invention
In heat pump system 2.
Specifically, as Figure 2-3, air energy water heater 100 may include head section J and water tank 1, wherein condenser 7
It is arranged in water tank 1, compressor 21, return air inlet HF, air outlet CF, heating component 3, evaporator 22, the 8, first temperature of throttle part
Detection unit 4, second temperature detection unit 5 and control unit 6 is spent to be arranged in head section J.
It should be noted that when heat pump system 2 operates normally, the high pressure gaseous refrigerant of 21 exhaust outlet of compressor discharge
It enters in condenser 7, and condenses heat release in condenser 7, transfer heat to the water in water tank 1, in heating water tank 1
Water, the gas-liquid mixed refrigerant formed after condensation can enter evaporator 22, and steaming after by throttle part 8
It is evaporated in hair device 22, to absorb the heat in air, it is cold to become gaseous state after the evaporation of evaporator 22 again for gas-liquid mixed refrigerant
Matchmaker, and the gas returning port through compressor 21 returns to compressor 21, so far, heat pump system 2 completes one cycle.Wherein, in water tank 1
Water temperature be not up to before set water temperature, can by control 21 continuous service of compressor, to absorb the heat in air, to water
Water in case 1 is heated.
Further, the return side A of evaporator 22 is arranged in heating component 3, it is to be understood that return air can pass through setting
It is heated in the heating component 3 of the return side A of evaporator 22, and after the heating, steaming is entered by the return side A of evaporator 22
Send out device 22.
That is, outside air can be by the return side A of return air inlet HF return air to evaporator 22, and pass through evaporator
Refrigerant in 22, with evaporator 22 exchanges heat.
In some embodiments of the invention, as shown in Fig. 2, return air inlet HF may be disposed at the return side A's of evaporator 22
Left upper end, and perpendicular to the return side A of evaporator 22；As shown in figure 3, return air inlet HF may also set up in the return side of evaporator 22
Left end, and be parallel to the return side A of evaporator 22.
Further, the setting of the first temperature detecting unit 4 is in heating component 3 backwards to 22 side of evaporator, the inspection of the first temperature
The return air temperature that unit 4 is used to detect heating component 3 backwards to 22 side of evaporator is surveyed, to generate the first return air temperature TH1；Second
Temperature detecting unit 5 is arranged between the return side A of evaporator 22 and heating component 3, and second temperature detection unit 5 is for detecting
Return air temperature between the return side A and heating component 3 of evaporator 22, to generate the second return air temperature TH2；Control unit 6 with
First temperature detecting unit 4, second temperature detection unit 5, heating component 3 are connected with compressor 21, and control unit 6 is according to first
Return air temperature TH1 and the second return air temperature TH2 control heating component 3 and compressor 21.
The air energy water heater that the embodiment of the present invention proposes as a result, is arranged heating component in the return side of evaporator, passes through
Heating component is set towards the first temperature detecting unit detection heating component backwards to evaporator side towards backwards to evaporator side
Return air temperature to generate the first return air temperature, and the by being arranged between the return side of evaporator and heating component second temperature
Return air temperature between the return side and heating component of degree detection unit detection evaporator is controlled with generating the second return air temperature
Unit processed controls heating component and compressor according to the first return air temperature and the second return air temperature.As a result, by steaming
Heating component is arranged in the return side for sending out device, can guarantee the return air temperature of the return side of evaporator when environment temperature is lower, into
And guaranteeing the heating capacity under air energy water heater low temperature environment, the defrosting problem being also avoided that under low temperature environment avoids steaming
Side frosting is sent out, therefore can also simplify system arrangement, does not need to increase four-way valve module, but also be able to achieve real water power point
From, ensure user using safe.
Further, as Figure 2-3, in some embodiments of the present invention, heat pump system 2 further includes relative evaporation device 22
The blower 23 of setting.
In some embodiments of the invention, as Figure 2-3, air outlet CF may be disposed at the air side of evaporator 22
The right end of B, and it is parallel to the air side B of evaporator 22, and, air outlet CF may be disposed at the blower of the setting of relative evaporation device 22
Side.
Wherein, control unit 6 is used for during heat pump system 2 starts, and control blower 23 starts, and obtains first time
Air temperature TH1, and when the first return air temperature TH1 is less than the first temperature threshold Ty1, start the first preset time in blower 23
Heating component 3 is controlled after T1 to start.
For example, during heat pump system 2 starts, firstly, starting blower, then, in the process of blower starting
In, by 4 real-time detection of the first temperature detecting unit detect heating component 3 towards backwards to 22 side of evaporator return air temperature, with
The first return air temperature TH1 is generated, if the first return air temperature TH1 obtained meets relationship TH1 < Ty1, control unit 6 is in wind
Control heating component 3 starts after machine 23 starts the first preset time T 1, to guarantee the heating under air energy water heater low temperature environment
Ability.
Specifically, in some embodiments of the invention, during heat pump system 2 starts, the first return air temperature TH1
Acquisition modes may include but be not limited to following three kinds: 1) blower 23 start when, by the first temperature detecting unit 4 detection plus
Hot component 3 backwards to 22 side of evaporator return air temperature, to generate the first return air temperature TH1；It 2) is inspection with prefixed time interval
It surveys the period, and heating component 3 is detected backwards to the return air temperature of 22 side of evaporator, to generate by the first temperature detecting unit 4
First return air temperature TH1；3) pass through 4 real-time detection heating component 3 of the first temperature detecting unit returning backwards to 22 side of evaporator
Air temperature, to generate the first return air temperature TH1.
Further, according to one embodiment of present invention, control unit 6 is also used to after heating component 3 starts, and is obtained
Second return air temperature TH2, and according to the heating power of the second return air temperature TH2 adjustment heating component 3, until the second return air temperature
When TH2 reaches preset temperature range Ty2~Ty3, control compressor 21 starts.
For example, during heat pump system 2 starts, after the starting of heating component 3, the second return air temperature is monitored
TH2, if the second return air temperature TH2 meets relationship TH2 < Ty2, control unit 6 adjusts the heating power liter of heating component 3
Height, until the second return air temperature TH2 meets relationship Ty2 < TH2 < Ty3, control compressor 21 starts.
Specifically, in some embodiments of the invention, during heat pump system 2 starts, the second return air temperature TH2
Acquisition modes may include but be not limited to following two kinds: 1) using prefixed time interval as detection cycle, and pass through second temperature examine
The return air temperature between the return side A and heating component 3 of the detection evaporator 22 of unit 5 is surveyed, to generate the second return air temperature TH2；
2) pass through the return air temperature between the return side A and heating component 3 of 5 real-time detection evaporator 22 of second temperature detection unit, with
Generate the second return air temperature TH2.
Further, according to one embodiment of present invention, control unit 6 is also used to be greater than in the first return air temperature TH1
Or when being equal to the first temperature threshold Ty1, control compressor 21 starts after blower 23 starts the first preset time T 1.
That is, during heat pump system 2 starts, if the first return air temperature TH1 is greater than or equal to the first temperature
Threshold value Ty1, i.e. TH1 >=Ty1 are spent, then control compressor 21 starts after blower 23 starts the first preset time T 1, at this point, heating
Component 3 does not work.
Further, according to one embodiment of present invention, control unit 6 is also used to the process run in heat pump system 2
In, the first return air temperature TH1 is obtained, and when the first return air temperature TH1 is less than the first temperature threshold Ty1, controls heating component 3
Starting.
That is, during heat pump system 2 is run, if the first return air temperature TH1 is less than the first temperature threshold
Ty1, then control unit 6 controls heating component 3 and starts, to guarantee the heating capacity under air energy water heater low temperature environment.
Specifically, in some embodiments of the invention, during heat pump system 2 is run, the first return air temperature TH1
Acquisition modes may include but be not limited to following two kinds: 1) using prefixed time interval as detection cycle, and by the first temperature examine
It surveys unit 4 and detects heating component 3 backwards to the return air temperature of 22 side of evaporator, to generate the first return air temperature TH1；2) by the
One temperature detecting unit, 4 real-time detection heating component 3 backwards to 22 side of evaporator return air temperature, to generate the first return air temperature
TH1。
Further, according to one embodiment of present invention, control unit 6 is also used to after heating component 3 starts, and is obtained
Second return air temperature TH2, and according to the heating power of the second return air temperature TH2 adjustment heating component 3, until the second return air temperature
TH2 reaches preset temperature range Ty2~Ty3.
For example, after the starting of heating component 3, and during heat pump system 2 is run, if the second return air temperature
TH2 meets relationship TH2 < Ty2, then the heating power that control unit 6 adjusts heating component 3 increases, until the second return air temperature
TH2 meets relationship Ty2 < TH2 < Ty3, and control compressor 21 starts；If the second return air temperature TH2 meets relationship TH2 >
Ty3, then the heating power that control unit 6 adjusts heating component 3 reduces, until the second return air temperature TH2 meets relationship Ty2 <
TH2 < Ty3, control compressor 21 start.
Specifically, in some embodiments of the invention, during heat pump system 2 is run, the second return air temperature TH2
Acquisition modes may include but be not limited to following two kinds: 1) using prefixed time interval as detection cycle, and pass through second temperature examine
The return air temperature between the return side A and heating component 3 of the detection evaporator 22 of unit 5 is surveyed, to generate the second return air temperature TH2；
2) pass through the return air temperature between the return side A and heating component 3 of 5 real-time detection evaporator 22 of second temperature detection unit, with
Generate the second return air temperature TH2.
Further, according to one embodiment of present invention, control unit 6 is also used to according to the second return air temperature TH2
Before the heating power for adjusting heating component 3, the difference between the first return air temperature TH1 and the first temperature threshold Ty1 is obtained, and
Default heating power is obtained according to difference, and the heating power of control heating component 3 reaches default heating power.
That is, also further being obtained before the heating power for adjusting heating component 3 according to the second return air temperature TH2
The difference Tc between the first return air temperature TH1 and the first temperature threshold Ty1 is taken, and default heating power is obtained according to difference Tc,
And the heating power of control heating component 3 reaches default heating power, wherein Tc=Ty1-TH1.
In some examples of the invention, it in 2 start-up course of heat pump system and in operational process, can be obtained according to difference Tc
The heating power for taking default heating power, and controlling heating component 3 reaches default heating power.
It should be noted that after the heating power of control heating component 3 reaches default heating power, also according to second time
Air temperature TH2 adjusts the heating power of heating component 3, until the second return air temperature TH2 reaches preset temperature range Ty2~Ty3.
Further, according to one embodiment of present invention, heating component 3 can be multisection type heating component, by adjusting
The heating power of the output percentage control heating component 3 of multisection type heating component.
Specifically, the difference Tc between the first return air temperature TH1 and the first temperature threshold Ty1 can be obtained, and according to difference
Tc adjusts the output percentage of multisection type heating component, to control the heating power of heating component 3.
It should be noted that the output percentage of multisection type heating component is the unlatching number of segment for controlling multisection type heating component
Account for the percentage of multisection type heating component whole number of segment.
Further, as shown in figure 4, according to one embodiment of present invention, air energy water heater 100 further includes that setting exists
Third temperature detecting unit 8 in water tank, third temperature detecting unit 8 are used to detect the water temperature in water tank 1, wherein control is single
When water temperature of the member 6 in water tank 1 reaches set water temperature, control heat pump system 2 is out of service.
That is, can pass through when the water temperature in the water tank 1 that third temperature detecting unit 8 detects reaches set water temperature
It is out of service that control unit 6 controls heat pump system 2.
Further, according to one embodiment of present invention, control unit 6 is when control heat pump system 2 is out of service, first
It controls compressor 21 to stop, and control heating component 3 stops output, Yi Ji after compressor 21 shuts down the second preset time T 2
Control blower 23 is out of service after heating component 3 stops output third preset time T 3.
That is, control heat pump system 2 it is out of service when, can successively compressor 21 out of service, 3 and of heating component
Blower 23 guarantees the stability of heat pump system 2 to keep entire heat pump system 2 out of service.
As described above, the control mode of air energy water heater 100 during startup can be as follows:
During startup, control heat pump system 2 starts air energy water heater 100, wherein starts in heat pump system 2
In the process, firstly, then starting blower during blower starting, is examined by 4 real-time detection of the first temperature detecting unit
Survey heating component 3 is towards the return air temperature backwards to 22 side of evaporator, to generate the first return air temperature TH1, and as TH1 < Ty1,
Control heating component 3 starts after blower 23 starts the first preset time T 1, and after the starting of heating component 3, monitors second time
Air temperature TH2, and as TH2 < Ty2, the heating power of adjustment heating component 3 increases, until the second return air temperature TH2 meets
Relationship Ty2 < TH2 < Ty3, then the starting of compressor 21 is controlled, in addition, as TH1 >=Ty1, when the starting of blower 23 first is default
Between the starting of compressor 21 is directly controlled after T1, at this point, heating component 3 does not work.
The control mode of air energy water heater 100 in the process of running can be as follows:
Air energy water heater 100 in the process of running, control heat pump system 2 run during, when the first return air temperature
When spending TH1 less than the first temperature threshold Ty1, control heating component 3 starts, and after the starting of heating component 3, obtains the second return air
Temperature TH2 adjusts the heating power of heating component 3 according to the second return air temperature TH2, specifically, according to second time in turn
Before air temperature TH2 adjusts the heating power of heating component 3, the first return air temperature TH1 and the first temperature threshold are also further obtained
Difference Tc between value Ty1, and default heating power is obtained according to difference Tc, and the heating power of control heating component 3 reaches
To default heating power, wherein Tc=Ty1-TH1.And reach default heating function in the heating power of control heating component 3
After rate, also according to the heating power of the second return air temperature TH2 adjustment heating component 3, until the second return air temperature TH2 reaches default
Temperature range Ty2~Ty3.
In addition, controlling compressor when the water temperature in the water tank 1 that third temperature detecting unit 8 detects reaches set water temperature
It shuts down, and after the first preset time of compressor shutdown, control heating component 3 stops output, and is passing through the second preset time
Afterwards, control blower is out of service, and so far, heat pump system 2 is out of service.
To sum up, the air energy water heater proposed according to embodiments of the present invention, by being arranged in heating component backwards to evaporator
First temperature detecting unit of side detects heating component backwards to the return air temperature of evaporator side, to generate the first return air temperature
Degree, and the second temperature detection unit by being arranged between the return side of evaporator and heating component detects the return air of evaporator
Return air temperature between side and heating component, to generate the second return air temperature, thus, by control unit according to the first return air temperature
Degree and the second return air temperature control heating component and compressor, to guarantee the heating under air energy water heater low temperature environment
Effect, promotes the comfort of user, and realize water power be isolated, ensure user using safe.
Air energy water heater based on previous embodiment, the invention also provides a kind of controlling parties of air energy water heater
Method.
In an embodiment of the present invention, air energy water heater include water tank, heat pump system that the water in water tank is heated
Unite and be arranged in evaporator return side heating component, heat pump system includes the compressor and evaporator being arranged in outside water tank
And the condenser in water tank is set, wherein as shown in figure 5, method the following steps are included:
S101 detects heating component backwards to the return air temperature of evaporator side, to generate the first return air temperature.
It optionally, can be by the way that temperature sensor be arranged backwards to evaporator side in heating component, to detect heating component back
To the return air temperature of evaporator side, to generate the first return air temperature.
S102 detects the return air temperature between the return side of evaporator and heating component, to generate the second return air temperature.
It optionally, can be by the way that temperature sensor be arranged between the return side and heating component of evaporator, to detect evaporation
Return air temperature between the return side and heating component of device, to generate the second return air temperature.
S103 controls heating component and compressor according to the first return air temperature and the second return air temperature.
That is, being controlled according to the first return air temperature and the second return air temperature heating component and compressor.By
This, is arranged heating component by the return side in evaporator, can guarantee the return side of evaporator when environment temperature is lower
Return air temperature, and then guarantee the heating capacity under air energy water heater low temperature environment, also it is avoided that the defrosting under low temperature environment is asked
Topic, avoids evaporation side frosting, therefore can also simplify system arrangement, does not need to increase four-way valve module, but also is able to achieve true
Positive electricity separation, ensure user using safe.
It should be noted that the gaseous coolant of high temperature and pressure can be entered by compressor when heat pump system operates normally
In condenser, and condensation and heat release within the condenser, with the water in heating water tank, and the refrigerant formed after condensing is through celebrating a festival
After stream unit, enter evaporator, and evaporate in evaporator, to absorb the heat in air, refrigerant by evaporator it
Afterwards, become gaseous coolant again, and return to compressor, so far, heat pump system is completed once to the water heat cycles in water tank.
Further, according to one embodiment of present invention, heat pump system further includes the blower of relative evaporation device setting,
In, as shown in fig. 6, carrying out control to heating component and compressor according to the first return air temperature and the second return air temperature and including:
S201, during heat pump system starting, control blower starting, and obtain the first return air temperature.
S202, when the first return air temperature is less than the first temperature threshold, control adds after blower starts the first preset time
Hot component starting.
That is, during heat pump system starting, if obtaining the first return air temperature TH1 meets equation TH1 <
Ty1, then the control heating component starting after blower starts the first preset time T 1, to guarantee under air energy water heater low temperature environment
Heating capacity.
Further, as shown in fig. 6, according to one embodiment of present invention, the control method of air energy water heater is also wrapped
It includes:
S203, when the first return air temperature is greater than or equal to the first temperature threshold, after blower starts the first preset time
Control compressor start.
That is, during heat pump system starting, if the first return air temperature TH1 is greater than or equal to the first temperature
Threshold value Ty1, i.e. TH1 >=Ty1 then control compressor start after blower starts the first preset time T 1, at this point, heating component is not
Work.
Further, as shown in fig. 6, according to one embodiment of present invention, the control method of air energy water heater is also wrapped
It includes:
S204 obtains the second return air temperature, and adjust heating component according to the second return air temperature after heating component starting
Heating power, until the second return air temperature when reaching preset temperature range, controls compressor start.
For example, after the starting of heating component 3, and during heat pump system 2 starts, if the second return air temperature
TH2 meets relationship TH2 < Ty2, then the heating power for adjusting heating component increases, until the second return air temperature TH2 meets relationship
Ty2 < TH2 < Ty3 controls compressor start, and the heating power of heating component is kept to remain unchanged；If TH2 > Ty3,
The heating power for adjusting heating component reduces, until the second return air temperature TH2 meets relationship Ty2 < TH2 < Ty3, control compression
Machine starting.
Further, as shown in fig. 7, according to one embodiment of present invention, according to the first return air temperature and the second return air
Temperature controls heating component and compressor further include:
S301 obtains the first return air temperature, and in the first return air temperature less than first during heat pump system operation
When temperature threshold, control heating component starting.
That is, during heat pump system operation, if the first return air temperature TH1 is less than the first temperature threshold
Ty1 controls heating component starting, then to guarantee the heating capacity under air energy water heater low temperature environment.
Further, as shown in fig. 7, according to one embodiment of present invention, being heated being adjusted according to the second return air temperature
Before the heating power of component, further includes:
S302 obtains the difference between the first return air temperature and the first temperature threshold.
That is, according in above-mentioned implementation, during heat pump system operation, if the first return air temperature TH1 is small
In the first temperature threshold Ty1, and heating component starting is controlled, then also further obtains the first return air temperature TH1 and the first temperature
Difference Tc between threshold value Ty1, wherein Tc=Ty1-TH1.
S303 obtains default heating power according to difference.
S304, the heating power for controlling heating component reach default heating power.
Further, as shown in fig. 7, according to one embodiment of present invention, the control method of air energy water heater is also wrapped
It includes:
S305 obtains the second return air temperature, and adjust heating component according to the second return air temperature after heating component starting
Heating power, until the second return air temperature reaches preset temperature range.
For example, after heating component starting, and during heat pump system operation, if the second return air temperature
TH2 meets relationship TH2 < Ty2, then the heating power for adjusting heating component increases, until the second return air temperature TH2 meets relationship
Ty2 < TH2 < Ty3 controls compressor start, and the heating power of heating component is kept to remain unchanged；If TH2 > Ty3,
The heating power for adjusting heating component reduces, until the second return air temperature TH2 meets relationship Ty2 < TH2 < Ty3, control compression
Machine starting.
Further, according to one embodiment of present invention, heating component can be multisection type heating component, by adjusting more
The heating power of the output percentage control heating component of segmentation heating component.
Specifically, the difference Tc between the first return air temperature TH1 and the first temperature threshold Ty1 can be obtained, and according to difference
Tc adjusts the output percentage of multisection type heating component, to control the heating power of heating component.
Further, as shown in figure 8, according to one embodiment of present invention, the control method of air energy water heater is also wrapped
It includes:
S104 detects the water temperature in water tank.
It specifically, can be by the way that temperature sensor be arranged in water tank, to detect the water temperature in water tank.
S105, when the water temperature in water tank reaches set water temperature, control heat pump system is out of service.
Wherein, set water temperature is user's setting value.
Further, as shown in figure 9, according to one embodiment of present invention, control that heat pump system is out of service to include:
S401 first controls compressor and stops, and the stopping of control heating component is defeated after the second preset time of compressor shutdown
Out.
S402, control blower is out of service after heating component stops output third preset time.
That is, control heat pump system it is out of service when, can successively compressor out of service, heating component and wind
Machine guarantees the stability of heat pump system to keep entire heat pump system out of service.
For example, as shown in Figure 10, air energy water heater is standby, and executes step S1.
S1, control heat pump system starting.
S2, judges whether the first return air temperature TH1 is more than or equal to the first temperature threshold Ty1.If so, thening follow the steps
S3；If not, thening follow the steps S5.
S3 controls compressor start.
S4, when the water temperature in water tank reaches default water temperature, control heat pump system is out of service.
S5 obtains the difference Tc between the first return air temperature TH1 and the first temperature threshold Ty1, and is adjusted according to difference Tc
The output percentage of multisection type heating component, to control the heating power of heating component.
S6, judges whether the second return air temperature TH2 reaches preset temperature range Ty1~Ty2.If so, thening follow the steps
S3；If not, thening follow the steps S7.
The heating power of heating component is raised and lowered in S7, and executes step S6 again.
To sum up, the control method of the air energy water heater proposed according to embodiments of the present invention passes through the return air in evaporator
Heating component is arranged in side, by detection heating component backwards to the return air temperature of evaporator side, to generate the first return air temperature, and
The return air temperature between return side and heating component by detecting evaporator, to generate the second return air temperature, thus, according to the
One return air temperature and the second return air temperature control heating component and compressor.Pass through the return side in evaporator as a result,
Heating component is set, can guarantee the return air temperature of the return side of evaporator when environment temperature is lower, and then guarantee air energy
Heating capacity under water heater low temperature environment, the defrosting problem being also avoided that under low temperature environment, avoids evaporation side frosting, therefore
Also it can simplify system arrangement, not need to increase four-way valve module, but also be able to achieve real electricity separation, ensure making for user
With safety.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing custom logic function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium ", which can be, any may include, stores, communicates, propagates or pass
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.The more specific example (non-exhaustive list) of computer-readable medium include the following: there is the electricity of one or more wirings
Interconnecting piece (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can then be edited, be interpreted or when necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.Such as, if realized with hardware in another embodiment, following skill well known in the art can be used
Any one of art or their combination are realized: have for data-signal is realized the logic gates of logic function from
Logic circuit is dissipated, the specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene can compile
Journey gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..Although having been shown and retouching above
The embodiment of the present invention is stated, it is to be understood that above-described embodiment is exemplary, and should not be understood as to limit of the invention
System, those skilled in the art can be changed above-described embodiment, modify, replace and become within the scope of the invention
Type.
Claims (20)
1. a kind of air energy water heater characterized by comprising
Water tank；
To the heat pump system that the water in the water tank is heated, the heat pump system includes the compression being arranged in outside the water tank
Machine and evaporator and the condenser being arranged in the water tank；
The heating component of the return side of the evaporator is set；
The heating component is set backwards to the first temperature detecting unit of the evaporator side, the first temperature detection list
Member is for detecting the heating component backwards to the return air temperature of the evaporator side, to generate the first return air temperature；
Second temperature detection unit between the return side of the evaporator and the heating component, the second temperature are set
Detection unit is used to detect the return air temperature between the return side of the evaporator and the heating component, to generate the second return air
Temperature；
Control unit, described control unit and first temperature detecting unit, the second temperature detection unit, the heating
Component is connected with the compressor, and described control unit is according to first return air temperature and the second return air temperature to the heating
Component and the compressor are controlled.
2. air energy water heater according to claim 1, which is characterized in that the heat pump system further includes the relatively described steaming
Send out the blower of device setting, wherein described control unit is used to control the blower during heat pump system starting and open
It is dynamic, and first return air temperature is obtained, and when first return air temperature is less than first temperature threshold, described
Blower controls the heating component starting after starting the first preset time.
3. air energy water heater according to claim 2, which is characterized in that described control unit is also used in the heating
After component starting, second return air temperature is obtained, and adjusts the heating of the heating component according to second return air temperature
Power, until controlling the compressor start when second return air temperature reaches preset temperature range.
4. air energy water heater according to claim 2, which is characterized in that described control unit is also used to described first
When return air temperature is greater than or equal to first temperature threshold, after the blower starts first preset time described in control
Compressor start.
5. air energy water heater according to claim 1, which is characterized in that described control unit is also used in the heat pump
During system is run, first return air temperature is obtained, and when first return air temperature is less than the first temperature threshold,
Control the heating component starting.
6. air energy water heater according to claim 5, which is characterized in that described control unit is also used in the heating
After component starting, second return air temperature is obtained, and adjusts the heating of the heating component according to second return air temperature
Power, until second return air temperature reaches preset temperature range.
7. the air energy water heater according to claim 3 or 6, which is characterized in that described control unit is also used in basis
Before second return air temperature adjusts the heating power of the heating component, first return air temperature and described first is obtained
Difference between temperature threshold, and default heating power, and the heating of the control heating component are obtained according to the difference
Power reaches the default heating power.
8. air energy water heater according to claim 7, which is characterized in that the heating component is multisection type heating group
Part controls the heating power of the heating component by adjusting the output percentage of the multisection type heating component.
9. air energy water heater according to claim 2, which is characterized in that further include the third being arranged in the water tank
Temperature detecting unit, the third temperature detecting unit are used to detect the water temperature in the water tank, wherein described control unit is used
When the water temperature in the water tank reaches set water temperature, it is out of service to control the heat pump system.
10. air energy water heater according to claim 9, which is characterized in that described control unit is controlling the heat pump
When system is out of service, first controls the compressor and stop, and after second preset time of compressor shutdown described in control
Heating component stops output, and controls the blower after the heating component stops output third preset time and stop fortune
Row.
11. a kind of control method of air energy water heater, which is characterized in that the air energy water heater includes water tank, to described
Heat pump system that water in water tank is heated and be arranged in the evaporator return side heating component, the heat pump system
System includes the compressor being arranged in outside the water tank and evaporator and the condenser being arranged in the water tank, wherein described
Method the following steps are included:
The heating component is detected backwards to the return air temperature of the evaporator side, to generate the first return air temperature；
The return air temperature between the return side of the evaporator and the heating component is detected, to generate the second return air temperature；
The heating component and the compressor are controlled according to first return air temperature and the second return air temperature.
12. the control method of air energy water heater according to claim 11, which is characterized in that the heat pump system also wraps
Include the blower that the relatively described evaporator setting is set, wherein according to first return air temperature and the second return air temperature to institute
It states heating component and the compressor control and includes:
During heat pump system starting, the blower starting is controlled, and obtain first return air temperature；
When first return air temperature is less than first temperature threshold, controlled after the blower starts the first preset time
The heating component starting.
13. the control method of air energy water heater according to claim 12, which is characterized in that further include:
After heating component starting, second return air temperature is obtained, and according to second return air temperature adjustment
The heating power of heating component, until controlling the compressor start when second return air temperature reaches preset temperature range.
14. the control method of air energy water heater according to claim 12, which is characterized in that further include:
It is default in blower starting described first when first return air temperature is greater than or equal to first temperature threshold
The compressor start is controlled after time.
15. the control method of air energy water heater according to claim 11, which is characterized in that described according to described first
Return air temperature and the second return air temperature carry out control to the heating component and the compressor and include:
During heat pump system operation, first return air temperature is obtained, and be less than in first return air temperature
When the first temperature threshold, the heating component starting is controlled.
16. the control method of air energy water heater according to claim 15, which is characterized in that further include:
After heating component starting, second return air temperature is obtained, and according to second return air temperature adjustment
The heating power of heating component, until second return air temperature reaches preset temperature range.
17. the control method of air energy water heater described in 3 or 16 according to claim 1, which is characterized in that according to described
Two return air temperatures adjust before the heating power of the heating component, further includes:
Obtain the difference between first return air temperature and first temperature threshold；
Default heating power is obtained according to the difference；
The heating power for controlling the heating component reaches the default heating power.
18. the control method of air energy water heater according to claim 17, which is characterized in that the heating component is more
Segmentation heating component controls the heating function of the heating component by adjusting the output percentage of the multisection type heating component
Rate.
19. the control method of air energy water heater according to claim 12, which is characterized in that further include:
Detect the water temperature in the water tank；
When water temperature in the water tank reaches set water temperature, it is out of service to control the heat pump system.
20. the control method of air energy water heater according to claim 19, which is characterized in that the control heat pump
System is out of service to include:
It first controls the compressor to stop, and controls the heating component after second preset time of compressor shutdown and stop
Output；
It is out of service that the blower is controlled after the heating component stops output third preset time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416245.7A CN109269102A (en) | 2018-11-26 | 2018-11-26 | Air energy water heater and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416245.7A CN109269102A (en) | 2018-11-26 | 2018-11-26 | Air energy water heater and its control method |
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| CN109269102A true CN109269102A (en) | 2019-01-25 |
Family
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719967A (en) * | 2021-08-06 | 2021-11-30 | Tcl空调器(中山)有限公司 | Air conditioner defrosting method and device, air conditioner and storage medium |
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| CN1224144A (en) * | 1998-01-23 | 1999-07-28 | 运载器有限公司 | Method and apparatus for controlling supplemental heat in heat pump system |
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