CN105588336B - Water heater and its control method - Google Patents
Water heater and its control method Download PDFInfo
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- CN105588336B CN105588336B CN201410635216.5A CN201410635216A CN105588336B CN 105588336 B CN105588336 B CN 105588336B CN 201410635216 A CN201410635216 A CN 201410635216A CN 105588336 B CN105588336 B CN 105588336B
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Abstract
The present invention provides a kind of water heater and its control methods.Wherein water heater includes heat pump heating system and electric heating system, and the control method of water heater includes: to obtain the environmental parameter of water heater local environment；Environmental parameter is matched with preset multiple execution conditions, to obtain and the matched execution condition of environmental parameter；Determine that corresponding control model, control model preset the control parameter of adjustment heat pump heating system and/or electric heating system operating status according to matched execution condition；According to the operating status of control parameter adjustment heat pump heating system and/or electric heating system preset in identified control model.Utilize the solution of the present invention, the adjustment of water heater operating status is carried out using the control model for corresponding to environmental parameter, so as to the parameter flexibly controlled according to specific use environment, on the one hand meet user with water requirement, on the other hand can also be improved the working efficiency and use reliability of water heater.
Description
Technical field
The present invention relates to field of water heaters, more particularly to a kind of water heater and its control method.
Background technique
Hot water is people's lives necessity, however traditional water heater (electric heater, gas heater) has energy consumption
Greatly, the disadvantages of costly, seriously polluted, and restriction of the solar water heater by meteorological condition.
It is power from low temperature side draw heat using electric energy in view of the above problems, occur Teat pump boiler in the prior art
Domestic water is heated, to provide a user.
Teat pump boiler can be used with empty gas and water, solar energy, underground heat etc. as low-temperature heat source, wherein air source heat pump heat
Hydrophone is that wherein comprehensive performance is preferable and not by one kind of environmental restrictions.The air source hot pump water heater of the prior art mainly by
Compressor, heat exchanger, fan, insulated water tank, water pump, fluid reservoir, filter, electric expansion valve and electronic automatic controller etc.
Composition, its working principle is that: outdoor air carries out heat exchange by air heat exchanger, and the air after temperature reduces is arranged by fan
Out, the refrigeration working medium heat absorption vaporization in air heat exchanger is inhaled into compressor, compressor by this low pressure working fluid gas compression at
High temperature, high pressure gas are sent into water flow heat exchanger, carry out condensation liquefaction, while the water of insulated water tank is pumped through water by water pump pressure
Heat exchanger is flowed, heat is absorbed.Air heat exchanger is again flowed into after the expanded valve throttling cooling of the refrigeration working medium of condensation liquefaction, so
Iterative cycles work, and the thermal energy in air is sent in water by continuous " pump ", gradually rise the water temperature in insulated water tank.It is keeping the temperature
It, can be for users to use after water temperature in water tank reaches target water temperature.
However existing air source hot pump water heater needs to be arranged the insulated water tank of large capacity, occupied space is big, influences interior
Installation.And the hot water in insulated water tank will stop being discharged after use, until heat pump is again to the water of insulated water tank
It is heated to just continue to use after certain temperature.This water-out manners cause not to there is the user of continuous effluent demand
Just.
Summary of the invention
In view of the above problems, it proposes on the present invention overcomes the above problem or at least be partially solved in order to provide one kind
State the water heater of problem and the control method of corresponding water heater.
A further object of the present invention is to so that water heater is can satisfy the requirement of various use environments.
Another further object of the present invention is to improve the heat pump cycle efficiency of water heater and use reliability.
Particularly, the present invention provides a kind of control methods of water heater.Wherein water heater is provided with heat pump heating system
And electric heating system, the control method of above-mentioned water heater include: to obtain the environmental parameter of water heater local environment；By environmental parameter
It is matched with preset multiple execution conditions, to obtain and the matched execution condition of environmental parameter；According to matched execution item
Part determines that corresponding control model, control model preset adjustment heat pump heating system and/or electric heating system operation shape
The control parameter of state；According to control parameter adjustment heat pump heating system preset in identified control model and/or electric heating
The operating status of system.
Optionally, environmental parameter includes: the environment temperature of the inflow temperature of water heater, water heater local environment；Run shape
State includes: opening for the water supply direction of heat pump heating system and/or electric heating system, heat pump heating system and/or electric heating system
Stop state.
Optionally, each execution condition includes: the threshold range for judging parameter, and the threshold range of different execution conditions is not
Together；The step of environmental parameter is matched with preset multiple execution conditions includes: to carry out to inflow temperature and environment temperature
Preset logical operation obtains judgement parameter；The judgement parameter that operation is obtained respectively from the threshold range of different execution conditions into
Row compares, to determine matched execution condition.
Optionally, control model includes: to select a confession using what one of heat pump heating system and electric heating system supplied water outward
Aqueous mode, according to the operation for selecting control parameter adjustment heat pump heating system and/or electric heating system preset in a water supply pattern
State includes: the water tank that the water heated through heat pump heating system is fed to electric heating system；Reach in the water temperature of water tank
After one preset temperature, heat pump heating system is closed；Receive outside water supply enabling signal；It is supplied from water tank to the outlet pipe of water heater
Water, and in water tank after water temperature drop to the second preset temperature, stop water tank and supply water, and starts heat pump heating system, by
Heat pump heating system heating water and the outlet pipe for feeding to water heater.
Optionally, control model includes: that at least one is supplied water outward jointly by heat pump heating system and electric heating system
Common water supply pattern.
Optionally, common water supply pattern includes: the first common water supply pattern, according to preset in the first common water supply pattern
It includes: that will heat through heat pump heating system that control parameter, which adjusts heat pump heating system and/or the operating status of electric heating system,
Water feeds to the water tank of electric heating system；After the water temperature of water tank reaches third preset temperature, heat pump heating system is closed
Water pipeline and heat pump assembly；By the electric heater of electric heating system by the water temperature heating of water tank to the 4th preset temperature；It connects
Receive outside water supply enabling signal；Start the water pipeline of heat pump heating system and the heat pump assembly of heat pump heating system is kept to close
It closes；By the water for flowing through water pipeline with will be mixed from the water of water tank after to the outlet pipe of water heater supply.
Optionally, common water supply pattern includes: the second common water supply pattern, according to preset in the second common water supply pattern
It includes: that will heat through heat pump heating system that control parameter, which adjusts heat pump heating system and/or the operating status of electric heating system,
Water feeds to the water tank of electric heating system；After the water temperature of water tank reaches the 5th preset temperature, heat pump heating system is closed
Water pipeline and heat pump assembly；And by the electric heater of electric heating system by the water temperature heating of water tank to the 6th preset temperature；
Receive outside water supply enabling signal；Start the water pipeline of heat pump heating system and the heat pump assembly of heat pump heating system is kept to close
It closes；By the water for flowing through water pipeline with will be mixed from the water of water tank after to the outlet pipe of water heater supply；In water tank
After middle water temperature drop to the 7th preset temperature, start the heat pump assembly of heat pump heating system, by the water by heat pump assembly heating
It is supplied after being mixed with the water from water tank to the outlet pipe of water heater.
Optionally, common water supply pattern includes: the common water supply pattern of third, according to preset in the common water supply pattern of third
It includes: that will heat through heat pump heating system that control parameter, which adjusts heat pump heating system and/or the operating status of electric heating system,
Water feeds to the water tank of electric heating system；After the water temperature of water tank reaches the 8th preset temperature, heat pump heating system is closed
Water pipeline and heat pump assembly；And by the electric heater of electric heating system by the water temperature heating of water tank to the 9th preset temperature；
Receive outside water supply enabling signal；Start the water pipeline of heat pump heating system and the heat pump assembly of heat pump heating system is kept to close
It closes；By the water for flowing through water pipeline with will be mixed from the water of water tank after to the outlet pipe of water heater supply；In water tank
After middle water temperature drop to the tenth preset temperature, start the heat pump assembly of heat pump heating system, by the water by heat pump assembly heating
It is supplied after being mixed with the water from water tank to the outlet pipe of water heater；It is lower than in the leaving water temperature of the outlet pipe of water heater and uses
After the target coolant-temperature gage at family, starting is located at the auxiliary electric heater unit of the water outlet pipe part of water heater.
Optionally, heat pump heating system is compression air source heat pump heating system, including water flow heat exchanger and air change
Hot device, control model include: defrosting mode, according to control parameter adjustment heat pump heating system preset in defrosting mode and/or
The operating status of electric heating system include: by the refrigeration working medium flow path of heat pump heating system switch to using its water flow heat exchanger as
Evaporator and using its air heat exchanger as the operating status of condenser；The water tank of electric heating system exchanges heat to the water flow
The water pipeline of device supplies water, to absorb the cooling capacity of water flow heat exchanger.
Particularly, according to another aspect of the present invention, a kind of water heater is additionally provided.The water heater includes heat pump
System and electric heating system, water heater are configured to the control method of any water heater of above-mentioned introduction to heat pump heating system
And/or the operating status of electric heating system is adjusted.
The control method of water heater and water heater of the invention, preset a variety of different control models and each control model
Execution condition, water heater when in use, obtain water heater local environment environmental parameter and according to environmental parameter and execute item
Part is matched, and is further determined that out the control model that environment where being appropriate to current water heater uses, is used the control determined
The adjustment of molding formula progress water heater operating status.Therefore, water heater can flexibly be controlled according to specific use environment
Parameter, on the one hand meet user with water requirement, the working efficiency and use that on the other hand can also be improved water heater can
By property.
Further, water heater of the invention is configured with heat pump heating system and electric heating system, and preferably using heat
The advantages of pumping heating system, making full use of heat pump heating system is supplied water using electric heating system cooperation, is avoided as far as possible frequently
Start and stop heat pump extends the service life of heat pump assembly.
Further, various control mode preset in water heater of the invention, by Different Strategies to heat pump
System and electric heating system and its component are controlled, and the requirement of different use environments is met, and control flexibility and reliability.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the structural schematic diagram of water heater according to an embodiment of the invention；
Fig. 2 is the schematic diagram of the control method of water heater according to an embodiment of the invention；
Fig. 3 is a kind of water (flow) direction schematic diagram of the water heater according to an embodiment of the invention under control model；
Fig. 4 is water (flow) direction schematic diagram of the water heater according to an embodiment of the invention under another control model；
And
Fig. 5 is the water (flow) direction schematic diagram of water heater according to an embodiment of the invention in defrost mode.
Specific embodiment
A kind of water heater is present embodiments provided, it can be according to the control model that selection is suitble to the case where the environment of place.Fig. 1 is
The structural schematic diagram of water heater according to an embodiment of the invention, which is provided with heat pump heating system 110 and electricity adds
Hot systems 120.Heat pump heating system 110 carries out water heating using the heat of heat pump cycle.And electric heating system 120 is added using electricity
Hot mode carries out water heating.In the present embodiment, water heater presets various control mode, and every kind of control model has respectively corresponded
It executes condition.Using the present embodiment water heater when, local environment situation meets different execution conditions, can use automatically
Preset control parameter carries out the operating status of heat pump heating system 110 and electric heating system 120 in corresponding control model
Adjustment.
The environmental parameter used when determining control model includes following any one or more: the inflow temperature of water heater,
The environment temperature of water heater local environment, target leaving water temperature set by user, heat pump temperature etc..Preferably, Ke Yili
With the inflow temperature of wherein water heater, the environment temperature of water heater local environment carries out the determination that water heater carries out control model.
The operating status that water heater is adjusted may include: the water supply direction of heat pump heating system and/or electric heating system, heat pump
The start and stop state of system and/or electric heating system additionally may include the water supply ratio of heat pump heating system and electric heating system
Example and water supply.
In order to obtain environment above parameter, inflow temperature sensor and environment temperature is can be set in the water heater of the present embodiment
Sensor, wherein inflow temperature sensor is used to obtain the inflow temperature of water heater, and environment temperature sensor is for obtaining hot water
The environment temperature of device local environment.
Heat pump heating system 110 may include: water flow heat exchanger 111 and heat pump assembly.Electric heating system includes water tank
121 and electric heater 122 that water in water tank is heated.Wherein water flow heat exchanger 111 can be by the warm of heat pump cycle
Amount conduction completes water heating to the water flow for flowing through its water route.And electric heating system 120 is provided with water tank 121 and is set to storage
Electric heater 122 in water tank 121, water tank 121 are typically in full water state in the water supply course of work.
The principle of heating of heat pump heating system 110 are as follows: work according to inverse Carnot cycle.Refrigeration working medium is changed by air
Hot device 112 carries out heat exchange, and thermal energy is absorbed from low-temperature heat source, the air quilt that temperature reduces after exchanging with air heat exchanger 112
Fan 115 is discharged.Refrigeration working medium gas after vaporization sucks compressor 114, compression by refrigeration working medium flow passage selector device 113
This low voltage refrigeration Working medium gas is compressed into high temperature by machine 114, high pressure gas is sent into water flow heat exchanger 111, carries out condensation liquefaction,
The water flow for flowing through water flow heat exchanger 111 is heated, the liquid refrigerating working medium of high pressure reaches expansion valve by liquid storage device 116
117 become low temperature and low pressure liquid, start next circulation.
Water tank 121 is typically in full water state in the outside water supply stage.Heat pump heating system 110 and electric heating system
120 can be supplied water by the inlet pipeline of water heater, without individual water inlet pipe is respectively set.In a kind of alternative construction
In, the water heater of the present embodiment can be set into water distributor 141, will be from the moisture dispensing heat pump of inlet pipeline
System 110 and electric heating system 120.Heat pump heating system 110 and electric heating system 120 are received respectively by water inlet distributor
The water inlet of 141 distribution, is confessed outward after being heated.In synchronization, heat pump heating system 110 and electric heating system 120 are each
From flow of inlet water and water flow be generally consistent, thus intake distributor 141 by intake distribution determine heat pump
The water supply flow and ratio that heating system 110 and electric heating system 120 supply water outward.
The first disengaging with the first intake-outlet of water flow heat exchanger 111, water tank 121 respectively of water inlet distributor 141
The connection of the inlet pipeline of the mouth of a river and water heater.Water inlet distributor 141 can be made of the valve combination of multiple controllable apertures,
Also the combination valve for integrating multiple ports can be used.A kind of optional way are as follows: water inlet distributor 141 is to hold including at least three
The electronically controlled proportional valve of mouth, the first port A of electronically controlled proportional valve 141 are connect with inlet pipeline, the second port of electronically controlled proportional valve 141
B is connect with the first intake-outlet of water flow heat exchanger 111, the third port C of electronically controlled proportional valve 141 and the first of water tank 121
Intake-outlet connection.The control parameter of the aperture of second port B and third port C is adjusted in control model by preset adjusting,
And the water supply ratio that can accordingly control heat pump heating system 110 and electric heating system 120 is carried out using the control parameter, it protects
Outlet water temperature of water heater is demonstrate,proved to stablize.
Water to provide the second port B of electronically controlled proportional valve 141 has enough pressure and passes through water flow heat exchanger 111,
Water pump 142 can also be set between the second port B of electronically controlled proportional valve 141 and the first intake-outlet of water flow heat exchanger 111,
To increase hydraulic pressure.
Multiple and different temperature sensors can be set in the water heater of the present embodiment, with these temperature of the water temperature of measurement everywhere
Spending sensor includes: the first temperature sensor 131, second temperature sensor 132, third temperature sensor 133 and the 4th temperature
Sensor 134, wherein the first temperature sensor 131, for measuring the leaving water temperature of heat pump heating system 110；Second temperature passes
Sensor 132 is used to measure the water temperature of water feeding of heater pipeline；Third temperature sensor 133 is used to measure the water temperature of water tank 121.
Wherein, the first temperature sensor 131 can be set in the outlet pipe of the water flow heat exchanger 111 of heat pump heating system 110, and second
Temperature sensor 132 can be set in the inlet pipeline of water heater, and third temperature sensor 133 can be set in water tank
In 121, the 4th temperature sensor 134 is used to measure the leaving water temperature of water heater.
In addition water-water jet 143 has can be set in the water heater of the present embodiment, is used for mixed flow heat exchanger 111 and water tank
121 water outlet.Water admixing device 143 can be the water-water jet including at least three ports, the first port A ' and water of water-water jet 143
Flow the second intake-outlet connection of heat exchanger 111, the second port B ' of water-water jet 143 and the second intake-outlet of water tank 121
Connection, the third port C ' of water-water jet 143 are connect with outlet pipeline.Water-water jet 143 receives first port A ' and second port B '
Water inlet after, its mix in water cavity mix after, confessed from third port C '.The exit of third port C ' is also provided with
Four temperature sensors 144, measure mixed water temperature.
In view of under some limiting cases, for example, water heater lasting water supply time it is longer etc., heat pump heating system
110 and the leaving water temperature of electric heating system 120 be below target leaving water temperature.Auxiliary can also be arranged in the water heater of the present embodiment
Electric heater 145, is set on outlet pipeline, is configured to the leaving water temperature in the third port C ' of water-water jet 143 lower than target
Start when leaving water temperature, to further increase water supply water temperature.
The water heater of the present embodiment can run on a variety of different water supply patterns, under different mode, the operation of water heater
Parameter is different, also has any different to the control flow of water heater.Such as under different control models, whether heat pump assembly starts, starts
Condition, the start and stop condition of electric heater 122, the water supply direction of water flow heat exchanger 111 and water tank 121 and the area water supply ratio Jun You
Not.The specific embodiment of water heater operating status adjusting is carried out using the control model under the conditions of different execution and determines control
The process of molding formula is introduced in the embodiment of the control method of lower water-heater.
The embodiment of the invention also provides a kind of control methods of water heater, for any introduced in above embodiments
Kind water heater is controlled, and the use needs of varying environment are met.Fig. 2 is the control of water heater according to an embodiment of the invention
The control method of the schematic diagram of method processed, the water heater includes:
Step S202 obtains the environmental parameter of water heater local environment；
Step S204 matches environmental parameter, with preset multiple execution conditions to obtain matching with environmental parameter
Execution condition；
Step S206 determines corresponding control model according to matched execution condition；
Step S208 adds according to control parameter adjustment heat pump heating system preset in identified control model and/or electricity
The operating status of hot systems.
The control ginseng of adjustment heat pump heating system and/or electric heating system operating status is preset in the above control model
Number.Wherein environment above parameter can preferably select the inflow temperature of water heater and the environment temperature of water heater local environment；It needs
The operating status to be adjusted include heat pump heating system and/or electric heating system water supply direction and heat pump heating system and/
Or the start and stop state of electric heating system.
Various ways setting can be used in the above execution condition, such as threshold value model is arranged for inflow temperature and environment temperature
It encloses, different execution conditions, the threshold range of two parameters is different.Make execution condition in this way, the one of step S204
The optional process of kind is that the inflow temperature that will acquire respectively and environment temperature are compared respectively with preset threshold range, when
When the inflow temperature and environment temperature that water heater is got are fallen into the threshold range that a certain execution condition is formulated, so that it may determine
The execution condition is matched with current environment parameter.
Another setting means of execution condition are as follows: setting judges the threshold range of parameter, the threshold value of different execution conditions
Range is different, so that the process of step S204 can be with are as follows: carry out preset logical operation to inflow temperature and environment temperature and obtain
Judge parameter；The judgement parameter that operation obtains is compared from the threshold range of different execution conditions respectively, to determine
The execution condition matched.The logical calculation method of one of fairly simple judgement parameter is to take inflow temperature and environment temperature
Average value or mean-square value can also set different weights and be weighted.The formula of the above preset logical operation can
To be obtained according to the summary of the result of various tests, and it is (such as set by user to increase or decrease other environmental parameters
Target coolant-temperature gage, outdoor temperature etc.) as the variable of operation.It is calculated using logical operation and judges that parameter carries out threshold decision
Mode is more flexible, and can flexibly modify to judgment basis.
Following control model can be set in a kind of optional way of the control method of the water heater of the present embodiment: using heat pump
What one of heating system and electric heating system supplied water outward a select water supply pattern, at least one is by heat pump heating system and electric heating
Common water supply pattern, defrosting mode that heat pump heating system is safeguarded that system supplies water outward jointly etc..Wherein, a confession is selected
Aqueous mode is suitable for summer environment temperature and the higher situation of inlet water temperature, and common water supply pattern is suitable for selecting a water supply pattern
The lower situation of the environment temperature and inlet water temperature being unable to satisfy, with the difference of temperature, common water supply pattern be can be set
To be a variety of, the process and service condition supply water jointly to heat pump heating system 110 and electric heating system 120 is adjusted, such as
As environment temperature reduces, it is divided into the first common water supply pattern, the second common water supply pattern, the common water supply pattern of third.
In more hot environment (such as environment temperature is at 35 degree) of summer weather, step S208 is utilized and is selected a confession
The process of aqueous mode control water heater are as follows: the water heated through heat pump heating system 110 is fed to the water tank of electric heating system 120
121；After the water temperature of water tank 121 reaches the first preset temperature (such as 42 degree or so), heat pump heating system 110 is closed；It receives
Outside water supply enabling signal (such as movement or hydraulic signal of user's unlatching hot-water valve)；From water tank 121 to water heater
Outlet pipe supplies water, and in water tank 121 after water temperature drop to the second preset temperature (such as 40 degree or so), stops water tank 121
It supplies water, and starts heat pump heating system 110, water is heated by heat pump heating system 110 and feed to the outlet pipe of water heater.
Fig. 3 is a kind of water (flow) direction schematic diagram of the water heater according to an embodiment of the invention under control model, figure
In show the water (flow) direction individually heated by heat pump heating system.
When supplying water to water tank 121, the first port A and second port B of electronically controlled proportional valve 141, the of water-water jet 143
Single port A ', second port B ' are in all-pass state, and water pump 142 is in open state, the third port of electronically controlled proportional valve 141
The third port C ' of C, water-water jet 143 are closed.From external inlet pipeline of the tap water through water heater, pass through second port
B enters water flow heat exchanger 111, and heat pump assembly is in heat pump state, heats to the water flow by water flow heat exchanger 111.Add
Water after heat enters water tank 12 by first port A ', the second port B ' of water-water jet 143., when supplying water, firstly, automatically controlled
The first port A and third port C of proportioning valve 141 and the second port B ' and third port C ' of water-water jet 143 are opened,
It is supplied water outward by water tank 121, after 121 water temperature drop of water tank, heat pump heating system starts to start, electronically controlled proportional valve 141
First port A and the first port A ' and third port C ' of second port B and water-water jet 143 open, exchanged heat by water flow
Device 111 supplies water outward.
Fig. 4 is water (flow) direction schematic diagram of the water heater according to an embodiment of the invention under another control model,
Way of supplying water shown in Fig. 4 is that heat pump heating system 110 and electric heating system 120 are discharged jointly.At this point, electronically controlled proportional valve
141 three ports are all turned on, and wherein the aperture of second port B and third port C control heat pump heating system 110 and electricity
The water supply ratio of heating system 120.
In the case where spring and autumn environment is more nice and cool (such as environment temperature is at 20 degree), step S208 is according to the first common water supply
The process of mode are as follows: the water heated through heat pump heating system 110 is fed to the water tank 121 of electric heating system 120；In water tank
After 121 water temperature reaches third preset temperature (such as 42 degree or so), the water pipeline and heat pump dress of heat pump heating system 110 are closed
It sets；By the electric heater 122 of electric heating system 120, by the water temperature heating of water tank 121 to the 4th preset temperature, (such as 80 degree left
It is right)；Receive outside water supply enabling signal (such as movement or hydraulic signal of user's unlatching hot-water valve)；Start heat pump system
The water pipeline of system 110 simultaneously keeps the heat pump assembly of heat pump heating system 110 to close；By the water for flowing through water pipeline with will come from
It is supplied after the water mixing of water tank 121 to the outlet pipe of water heater.Under the control model, due to heat pump assembly in water supply process
Do not start, the effect via the water of water flow heat exchanger 111 is to be mixed into cold water, guarantee the stable with coolant-temperature gage of user and with target water
It is warm consistent.
(such as environment temperature is at 7 degree) at low temperatures, step S208 is according to the process of the second common water supply pattern are as follows: will
The water heated through heat pump heating system 110 feeds to the water tank 121 of electric heating system；Reach the 5th in the water temperature of water tank 121
After preset temperature (such as 42 degree or so), the water pipeline and heat pump assembly of heat pump heating system 110 are closed；And by electric heating system
120 electric heater 122 is by the water temperature heating of water tank 121 to the 6th preset temperature (such as 80 degree or so)；It receives and supplies water outward
Enabling signal (such as movement or hydraulic signal of user's unlatching hot-water valve)；Start the water pipeline of heat pump heating system 110
And the heat pump assembly of heat pump heating system 110 is kept to close；To flow through the water of water pipeline with will be from the water of water tank 121
It is supplied after mixing to the outlet pipe of water heater；In water tank 121 after water temperature drop to the 7th preset temperature (such as 40 degree or so),
The heat pump assembly for starting heat pump heating system 110, by the water heated by heat pump assembly 110 and from the water of water tank 121
It is supplied after mixing to the outlet pipe of water heater.
In severe cold environment (such as environment temperature -7 spend), step S208 is according to the process of the common water supply pattern of third are as follows:
The water heated through heat pump heating system 110 is fed to the water tank 121 of electric heating system 120；Reach in the water temperature of water tank 121
After 8th preset temperature (such as 42 degree or so), the water pipeline and heat pump assembly of heat pump heating system 110 are closed；And by electric heating
The electric heater 122 of system 120 is by the water temperature heating of water tank 121 to the 9th preset temperature (such as 80 degree or so)；It receives outside
Water supply enabling signal；Start the water pipeline of heat pump heating system 110 and the heat pump assembly of heat pump heating system 110 is kept to close
It closes；By the water for flowing through water pipeline with will be mixed from the water of water tank after to the outlet pipe of water heater supply；In water tank
After middle water temperature drop to the tenth preset temperature (such as 40 degree or so), start the heat pump assembly of heat pump heating system 110, it will be through overheating
Pump installation heating water with from the water of water tank 121 mix after to the outlet pipe of water heater supply；In the water outlet of water heater
After the leaving water temperature of pipe is lower than the target coolant-temperature gage of user, starting is located at the auxiliary electric heater unit of the water outlet pipe part of water heater
145。
Temperature value in above embodiments, by way of example only, not to the control method of the water heater of the present embodiment into
Row limits, and in actual use, the above execution condition can flexibly be changed according to test result.
The above various water supply patterns, using heat pump heating system as preferred heating means, and can guarantee heat pump
Heating system will not be opened and closed frequently, ensure that the reliability and service life of water heater.
Heat pump heating system can be compression air source heat pump heating system, and air heat exchanger is used to change as another
Thermal, in winter in the lower situation of environment temperature, air heat exchanger 112 will appear frosting situation, cause under heat exchange efficiency
Drop, after the frosting degree of detection air heat exchanger reaches a certain level, water heater needs to enter defrost pattern, and Fig. 5 is root
According to the water heater water (flow) direction schematic diagram in defrost mode of one embodiment of the invention, heat pump heating system 110 switches cold
Matchmaker's flow passage selector device 113 makes water flow heat exchanger 111 as evaporator and air heat exchanger 112 is run as condenser, leads to
It crosses and improves the temperature of air heat exchanger 112 and eliminate frost thereon, the temperature of water flow heat exchanger 111 reduces at this time.Automatically controlled ratio
The second port B and third port C and water pump 142 of valve 141 are opened, and water flow is run according to the direction that arrow indicates, take away water flow
The cooling capacity of heat exchanger 111 is handled conducive to the defrost of air heat exchanger 112.Defrost pattern and water supply pattern cannot be run simultaneously,
If user needs in defrosting using hot water, water heater will switch to water supply pattern, after use to user, come back for
Defrosting.
Using above a variety of different control models, the environmental parameter of available water heater local environment is simultaneously joined according to environment
Number is matched with execution condition, further determines that out the control model that environment where being appropriate to current water heater uses, and is used
The adjustment of control model progress water heater operating status.Therefore, water heater can flexibly be carried out according to specific use environment
The parameter of control, on the one hand meet user with water requirement, on the other hand can also be improved the working efficiency of water heater and make
Use reliability.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (8)
1. a kind of control method of water heater, the water heater are provided with heat pump heating system and electric heating system, feature exists
In the control method includes:
Obtain the environmental parameter of the water heater local environment；
The environmental parameter is matched with preset multiple execution conditions, to obtain and the matched execution of the environmental parameter
Condition；
Determine that corresponding control model, control model preset the adjustment heat pump and add according to the matched execution condition
The control parameter of hot systems and/or the electric heating system operating status；
The heat pump heating system and/or the electric heating system are adjusted according to control parameter preset in identified control model
The operating status of system；
The control model include: at least one supplied water outward jointly by the heat pump heating system and electric heating system it is common
Water supply pattern；
The common water supply pattern includes: the first common water supply pattern,
The heat pump heating system is adjusted according to control parameter preset in the described first common water supply pattern and/or the electricity adds
The operating status of hot systems includes:
The water heated through the heat pump heating system is fed to the water tank of the electric heating system；
After the water temperature of the water tank reaches third preset temperature, the water pipeline and heat pump of the heat pump heating system are closed
Device；
By the electric heater of the electric heating system by the water temperature heating of the water tank to the 4th preset temperature；
Receive outside water supply enabling signal；
Start the water pipeline of the heat pump heating system and the heat pump assembly of the heat pump heating system is kept to close；
By the water for flowing through the water pipeline with will be mixed from the water of the water tank after to the water heater outlet pipe
Supply.
2. control method according to claim 1, it is characterised in that
The environmental parameter includes: the environment temperature of the inflow temperature of the water heater, the water heater local environment；
The operating status includes: that the water supply direction of the heat pump heating system and/or the electric heating system, the heat pump add
The start and stop state of hot systems and/or the electric heating system.
3. control method according to claim 2, it is characterised in that
Each execution condition includes: the threshold range for judging parameter, and the threshold range of the different execution conditions is not
Together；
The step of environmental parameter is matched with preset multiple execution conditions include:
Preset logical operation is carried out to the inflow temperature and the environment temperature and obtains judgement parameter；
The judgement parameter that operation obtains is compared from the threshold range of the different execution conditions respectively, it is described to determine
Matched execution condition.
4. control method according to any one of claim 1 to 3, it is characterised in that
The control model includes: to select a water supply mould using what one of the heat pump heating system and electric heating system supplied water outward
Formula,
The control parameter adjustment heat pump heating system preset in a water supply pattern and/or the electric heating system are selected according to described
The operating status of system includes:
The water heated through the heat pump heating system is fed to the water tank of the electric heating system；
After the water temperature of the water tank reaches the first preset temperature, the heat pump heating system is closed；
Receive outside water supply enabling signal；
Supplied water from the water tank to the outlet pipe of the water heater, and in the water tank water temperature drop to the second default temperature
After degree, stop the water tank and supply water, and start the heat pump heating system, is heated water by the heat pump heating system and fed to
The outlet pipe of the water heater.
5. control method according to claim 1, it is characterised in that
The common water supply pattern includes: the second common water supply pattern,
The heat pump heating system is adjusted according to control parameter preset in the described second common water supply pattern and/or the electricity adds
The operating status of hot systems includes:
The water heated through the heat pump heating system is fed to the water tank of the electric heating system；
After the water temperature of the water tank reaches the 5th preset temperature, the water pipeline and heat pump of the heat pump heating system are closed
Device；
And by the electric heater of the electric heating system by the water temperature heating of the water tank to the 6th preset temperature；
Receive outside water supply enabling signal；
Start the water pipeline of the heat pump heating system and the heat pump assembly of the heat pump heating system is kept to close；
By the water for flowing through the water pipeline with will be mixed from the water of the water tank after to the water heater outlet pipe
Supply；
In the water tank after water temperature drop to the 7th preset temperature, start the heat pump assembly of the heat pump heating system, it will
By the heat pump assembly heating water with from the water of the water tank mix after to the outlet pipe of the water heater supply.
6. control method according to claim 1, it is characterised in that
The common water supply pattern includes: the common water supply pattern of third,
The heat pump heating system is adjusted according to control parameter preset in the common water supply pattern of the third and/or the electricity adds
The operating status of hot systems includes:
The water heated through the heat pump heating system is fed to the water tank of the electric heating system；
After the water temperature of the water tank reaches the 8th preset temperature, the water pipeline and heat pump of the heat pump heating system are closed
Device；
And by the electric heater of the electric heating system by the water temperature heating of the water tank to the 9th preset temperature；
Receive outside water supply enabling signal；
Start the water pipeline of the heat pump heating system and the heat pump assembly of the heat pump heating system is kept to close；
By the water for flowing through the water pipeline with will be mixed from the water of the water tank after to the water heater outlet pipe
Supply；
In the water tank after water temperature drop to the tenth preset temperature, start the heat pump assembly of the heat pump heating system, it will
By the heat pump assembly heating water with from the water of the water tank mix after to the outlet pipe of the water heater supply；
After target coolant-temperature gage of the leaving water temperature lower than user of the outlet pipe of the water heater, starting is located at the water heater
Water outlet pipe part auxiliary electric heater unit.
7. control method according to any one of claim 1 to 3, it is characterised in that
The heat pump heating system is compression air source heat pump heating system, including water flow heat exchanger and air heat exchanger,
The control model includes: defrosting mode,
The heat pump heating system and/or the electric heating system are adjusted according to control parameter preset in the defrosting mode
Operating status includes:
The refrigeration working medium flow path of the heat pump heating system is switched to using its water flow heat exchanger as evaporator and with its sky
Operating status of the gas heat exchanger as condenser；
The water tank of the electric heating system supplies water to the water pipeline of the water flow heat exchanger, to absorb the water flow heat exchanger
Cooling capacity.
8. a kind of water heater, it is characterised in that including heat pump heating system and electric heating system, the water heater is configured so that
Operating status of the control method of the water heater of any one of claims 1 to 7 to heat pump heating system and/or electric heating system
It is adjusted.
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| CN106403305A (en) * | 2016-09-23 | 2017-02-15 | 广东美的暖通设备有限公司 | Combined heat pump water heater unit and control method thereof |
| CN108253630A (en) * | 2016-12-29 | 2018-07-06 | 青岛经济技术开发区海尔热水器有限公司 | A kind of frequency conversion heat pump water heater control method |
| CN106705540A (en) * | 2017-01-05 | 2017-05-24 | 安徽亿瑞深冷能源科技有限公司 | High-precision liquid cooling flow-mixing and temperature-controlling device and method based on phase-change cold storing mechanism |
| CN107588539A (en) * | 2017-09-18 | 2018-01-16 | 合肥美的暖通设备有限公司 | Water heater, method for heating and controlling and system |
| CN109798668A (en) * | 2017-11-16 | 2019-05-24 | 保音股份有限公司 | Thermostatic water heaters and its constant temperature method |
| CN112781070B (en) * | 2020-09-23 | 2023-05-12 | 重庆海尔热水器有限公司 | Method for adjusting parameters of gas equipment and mobile terminal |
| CN114909699B (en) * | 2021-02-08 | 2023-06-27 | 艾欧史密斯(中国)热水器有限公司 | Defrosting control method, central controller and heating system |
| CN112856546A (en) * | 2021-03-29 | 2021-05-28 | 河北博志热能设备有限公司 | Heating assembly device for improving heating effect of side room for heating of heat pump and control method thereof |
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