CN105783270B - Hot water machine and hot water machine temperature control method of water - Google Patents
Hot water machine and hot water machine temperature control method of water Download PDFInfo
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- CN105783270B CN105783270B CN201410830152.4A CN201410830152A CN105783270B CN 105783270 B CN105783270 B CN 105783270B CN 201410830152 A CN201410830152 A CN 201410830152A CN 105783270 B CN105783270 B CN 105783270B
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Abstract
The invention discloses a kind of hot water machines, including compressor, gas-liquid separator, finned heat exchanger, water-side heat, inlet pipeline, outlet pipeline, leaving water temperature sensors and environment temperature sensor, inlet pipeline is equipped with water inlet quantity regulating device, the water inlet quantity regulating device is used to control the water inlet gear of the inlet pipeline, the hot water machine further includes the frequency control apparatus connecting with compressor, leaving water temperature sensors, and the frequency control apparatus is for adjusting the compressor operating frequency.The present invention also provides a kind of hot water machine temperature control method of water.The present invention adapted at a temperature of varying environment by changing the rate-adaptive pacemaker of compressor and heating process in, the unstable problem of hot water efficiency.It causes hot-water heating system to heat unstable problem since water flow is unstable by control decreased influent flow, realizes the fast and stable heating of hot water machine.
Description
Technical field
The present invention relates to hot water machine field more particularly to hot water machines and hot water machine temperature control method of water.
Background technique
Currently there are more and more users to begin to use air energy thermal water dispenser, air energy thermal water dispenser is not only energy saving, but also
It can use throughout the year.What general air energy thermal water dispenser used is all invariable frequency compressor.The output frequency of invariable frequency compressor
Stable namely air energy thermal water dispenser hot water power stability, but this stable hot water power is not fully suitable for various
Temperature environment.When outdoor is low temperature environment, the heating efficiency of air energy unit will appear the problem of substantially decaying, to cause
Water temperature set by user is not achieved in leaving water temperature under low temperature environment, reduces user's comforts of use.Meanwhile air energy thermal
The size of water dispenser flow of inlet water also influences whether the stability and heating efficiency of air energy unit heat system.When hot water machine into
When water flow is less than normal, then it is excessively high or cause air energy machine set system high voltage fault to will appear leaving water temperature；And when hot water machine
When flow of inlet water is bigger than normal, then it is too low to reduce user's comforts of use to will appear leaving water temperature.By environment temperature, feed water flow
The various factors such as amount influence, and air energy thermal water dispenser can not keep stable heating effect and efficiency completely during heating,
To influence the water demand and comforts of use of user.
Summary of the invention
The main purpose of the present invention is to provide a kind of hot water machines and hot water machine temperature control method of water, it is intended to pass through control heat
The running frequency and inflow of compressor in water dispenser reach lifting hot water stability during heating and heating efficiency
Purpose improves the satisfaction that user uses.
To achieve the above object, the present invention provides a kind of hot water machine, including compressor, gas-liquid separator, finned heat exchanger,
Water-side heat, inlet pipeline, outlet pipeline, environment temperature sensor, leaving water temperature sensors, the hot water machine further include:
Water inlet quantity regulating device and frequency control apparatus；Wherein,
The water inlet quantity regulating device is set on the inlet pipeline and connect with the environment temperature sensor, is used for
According to the temperature range where environment temperature sensor environment temperature detected, the water inlet shelves of the inlet pipeline are controlled
Position；
The frequency control apparatus and the compressor, the environment temperature sensor, the leaving water temperature sensors connect
It connects, the frequency control apparatus is respectively arranged with the initial launch frequency of environment temperature and compressor for each temperature range
The mapping table of rate；Environment temperature that the frequency control apparatus is used to be detected according to the environment temperature sensor and
The initial launch frequency of the compressor is arranged in the mapping table, and for according to leaving water temperature, the default temperature of hot water machine
Degree and compressor current operation frequency, adjust the compressor operating frequency.
The present invention also provides a kind of hot water machine temperature control method of water, the hot water machine include compressor, gas-liquid separator,
Finned heat exchanger, water-side heat, inlet pipeline, outlet pipeline, environment temperature sensor, leaving water temperature sensors, the heat
Water dispenser temperature control method of water includes:
Obtain environment temperature sensor environment temperature detected；
According to the temperature range where environment temperature sensor environment temperature detected, the inlet pipeline is controlled
Water inlet gear；
Distinguish according to environment temperature sensor environment temperature detected and for each temperature range pre-
If environment temperature and compressor initial launch frequency mapping table, set the initial launch frequency of the compressor；
According to the leaving water temperature sensors of acquisition leaving water temperature value detected, the preset temperature value of the hot water machine
And the compressor current operation frequency, adjust the compressor operating frequency.
Implement hot water machine and hot water machine temperature control method of water provided by the invention to have the advantages that
(1) present invention controls the water inlet gear of the inlet pipeline according to the temperature range where environment temperature, so that hot
The hot water amount of water dispenser does the adjustment of adaptability with the change of environment temperature；Also, under same temperature section, compressor operation
In the process, relationship is adjusted according to its running frequency frequency corresponding with water temperature variation, it is only necessary to which dynamic adjusts the operation of compressor
Frequency is without adjusting inflow, the bring to solve that the flow of inlet water in different temperature range and heating process is unstable
Heat instability problem；
(2) due to being respectively arranged with environment temperature and initial launch frequency for each temperature range in advance in the present invention
The mapping table of rate, and each temperature range is mutually adapted with water inlet gear, in the mistake of setting initial launch frequency
Inflow is combined with specific environment temperature in journey, realizes compressor at varying environment temperature and inflow most
Excellent initial launch frequency is conducive to improve user so that hot water machine can initially provide the hot water of suitable water temperature quickly
Experience.
Detailed description of the invention
Fig. 1 is hot water machine basic structure exemplary diagram of the present invention；
Fig. 2 is the functional block diagram of frequency control apparatus first embodiment of the present invention；
Fig. 3 is the functional block diagram of frequency control apparatus second embodiment of the present invention；
Fig. 4 is the functional block diagram of frequency adjustment module in frequency control apparatus 3rd embodiment of the present invention；
Fig. 5 is hot water machine temperature control method of water first embodiment flow diagram of the present invention；
Fig. 6 is hot water machine temperature control method of water second embodiment flow diagram of the present invention；
Fig. 7 is hot water machine temperature control method of water 3rd embodiment flow diagram of the present invention；
Fig. 8 is hot water machine temperature control method of water fourth embodiment flow diagram of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
It will illustrate to be illustrated specific structure and methods && steps of implementation of the invention with reference to the accompanying drawings below.In the present embodiment
In specifically illustrated with air energy thermal water dispenser.
Referring to Fig.1, Fig. 1 is hot water machine basic structure exemplary diagram of the present invention.The hot water machine includes compressor 1, gas-liquid point
From device 2, finned heat exchanger 3, electric expansion valve 4, four-way valve 5 and water-side heat 6.Four-way is passed through in one end of the compressor 1
Valve 5 is connected with the water-side heat 6, and the other end of the compressor 1 passes through gas-liquid separator 2 and passes through the same institute of four-way valve 5
State the connection of finned heat exchanger 3.The finned heat exchanger 3 is connected by the electric expansion valve 4 with the water-side heat 6.Institute
Stating compressor 1 is frequency-changeable compressor.Compressor 1, gas-liquid separator 2, finned heat exchanger 3, electric expansion valve 4, four-way valve 5 and water
Side heat exchanger 6 constitutes the circulation loop of coolant media in heater, and the coolant media is one of refrigerant, under room temperature
For cryogenic liquid.In the circulation loop of this coolant media, coolant media absorbs the heat in outside air by finned heat exchanger 3
Become gas liquid mixture with a certain amount of heat after amount, the gas part after gas-liquid separator 2 enters in compressor 1.Through
The effect of overcompression machine 1 becomes the gas of high temperature and pressure, then enters water-side heat 6 through four-way valve 5, in water-side heat 6
Heat is discharged, so that cold water is heated to be hot water.Finally enters in finned heat exchanger 3 and enter next through electric expansion valve 4 again
A circulation.
The present embodiment hot water machine further includes second solenoid valve 8, leaving water temperature sensors 9, inlet pipeline 10, outlet pipeline
11, environment temperature sensor 12, and the water inlet quantity regulating device 16 on the hot water machine inlet pipeline 10.The inflow
Regulating device 16 includes the first solenoid valve 13 and check valve 14, and the inflow connecting with first solenoid valve 13 adjusts control
Device 15 processed, the inflow adjusting controller 15 are electrically connected with environment temperature sensor 12 and the first solenoid valve 13 respectively.It is described
Quantity regulating device 16 of intaking is used for according to the temperature range where the environment temperature sensor 12 environment temperature detected, and
The water inlet gear of the inlet pipeline 10 is controlled by inflow adjusting controller 15.In the present invention, water inlet quantity regulating device
In the quantity of solenoid valve and check valve that includes, solenoid valve can be according to actual needs with check valve interconnected relationship etc.
Setting, and it is not limited to the exemplary forms in the present embodiment.
The leaving water temperature sensors 9 are located on the outlet pipeline 11, and the second solenoid valve 8 is located at inlet pipeline 10
On.The leaving water temperature sensors 9 are used to acquire the leaving water temperature value of hot water.The second solenoid valve 8 is for controlling water inlet pipe
Inflow in road 10.Wherein, the first solenoid valve 13 is in parallel with check valve 14, and after 14 parallel connection of the first solenoid valve 13 and check valve
It connects respectively with second solenoid valve 8 again.First solenoid valve 13 and second solenoid valve 8 form a branch of hot water machine cold water water inlet
Road and second solenoid valve 8 and check valve 14 form another branch of hot water machine cold water water inlet.Pass through described the two of setting
Hot water machine cold water is intake branch, can further be increased in the unit time in the case where keeping water velocity constant
Inflow, while also further increasing hot water machine thermal-stable and heating efficiency.Wherein, the unlatching of the first solenoid valve 13 or pass
It closes through inflow adjusting controller 15 and adjusts control.
For example, the heating effect of hot water machine is best at this time when hot water machine ambient temperature is greater than 20 DEG C, so as to
More cold water are heated, therefore, inflow adjusting controller 15 is according to the environment temperature sensor 12 environment temperature detected
Degree opens the first solenoid valve 13, to increase inflow.And when hot water machine ambient temperature is less than 20 DEG C, then inflow
Adjusting controller 15 closes the first solenoid valve 13.The environment temperature is can be according to the practical heating effect modification setting of hot water machine
, and be not constant.It is preferably 20 DEG C in the present embodiment.Or be, for example, when the compressor operating frequency is lower than
At 60 hertz, and continuous service 30 minutes or more, hot water machine can also reheat more while guaranteeing user's water demand
More cold water, therefore, inflow adjusting controller 15 can also open the first solenoid valve 13 according to this feature.In the present embodiment
In be not limited to compressor operating frequency lower than 60 hertz, and just to open first electric for this requirement in continuous service 30 minutes or more
Magnet valve 13, depending on the practical heating state of hot water machine.
In the present embodiment, water-side heat 6, second solenoid valve 8, inlet pipeline 10, outlet pipeline 11, the first solenoid valve
13 and check valve 14 constitute the inflow and outflow circuit of hot water machine.According to ambient temperature, cold water can be from inlet pipeline
10 respectively enter the first solenoid valve 13 and check valve 14 by second solenoid valves 8, or only enter check valve 14, finally again into
Enter after being heated to be hot water into water-side heat 6, then is flowed out through outlet pipeline 11.
In addition, the present embodiment hot water machine further includes environment temperature sensor 12 and frequency control apparatus 7.The environment temperature
Sensor 12 is located at the outside of the finned heat exchanger 3.The frequency control apparatus 7 is used to be supervised according to environment temperature sensor 12
The ambient temperature measured, the initial launch frequency of preset compressor 1.
Varying environment temperature suffers from direct influence for the heating efficiency and efficiency of hot water machine, especially for air
For energy heater, at low ambient temperatures, the heating efficiency of air energy heater, which will will appear, substantially to decay, under heating efficiency
Drop, while hot-water heating system can also become unstable, to influence the efficiency of heating.Therefore, frequency control apparatus 7 is directed to each institute
State the mapping table that temperature range is respectively arranged with the initial launch frequency of environment temperature and compressor.By presetting different rings
Compressor operating frequency at a temperature of border is to reduce influence of the environment temperature for hot water machine.
Referring to table 1, table 1 is the mapping table of the initial launch frequency of environment temperature Th and compressor, in the table ,-
10 DEG C -20 DEG C are a temperature range, and 20 DEG C -40 DEG C are another temperature range.
Table 1
| Th(℃) | Frequency initial value (hertz) | Th(℃) | Frequency initial value (hertz) |
| Th < -10 | 90 | 15 Th≤20 < | 45 |
| - 10≤Th < -5 | 80 | 20 Th≤25 < | 70 |
| - 5≤Th < 0 | 70 | 25 Th≤30 < | 65 |
| Th≤0 | 65 | 30 Th≤35 < | 60 |
| 0 Th≤5 < | 60 | 35 Th≤40 < | 55 |
| 5 Th≤10 < | 55 | 40 < Th | 50 |
| 10 Th≤15 < | 50 | —— | —— |
Corresponding relationship in upper table between Th and compressor operating frequency initial value is according to hot water machine real work situation
Calculate the optimal corresponding relationship that obtains, and be not uniquely limit it is constant.
Meanwhile the frequency control apparatus 7 is also used to be worked as according to leaving water temperature, hot water machine preset temperature and compressor 1
The regulated value of mapping relations between preceding running frequency and 1 running frequency of preset compressor adjusts and controls the compressor 1
Running frequency.Mapping relations between 1 current operation frequency of the leaving water temperature, hot water machine preset temperature and compressor are specific
Show as the current operation frequency of compressor 1 in a certain range (for example frequency range is 30HZ~150HZ) when, according to water outlet
Hot water effluent's temperature value that temperature sensor 9 monitors, (namely user needs the temperature that heats with the preset temperature value of hot water machine
Value) between difference, adjust compressor 1 running frequency.The frequency control apparatus 7 is the same as compressor 1, leaving water temperature sensors
9 and environment temperature sensor 12 connect.
In the present embodiment, the coolant media absorbs the thermal energy in outside air by finned heat exchanger 3, and through compressing
The gas of coolant media boil down to high temperature and pressure, the high temperature and high pressure gas are transferred thermal energy to cold by machine 1 through water-side heat 6
Water, so that cold water is heated to be hot water.Meanwhile frequency control apparatus 7 goes out water temperature by being set on hot water effluent's pipeline 11
Sensor 9 is spent, leaving water temperature actual value is obtained, so as to according between leaving water temperature actual value and water outlet temperature setting value
Difference obtains the running frequency regulated value of corresponding compressor 1, thus fortune of the frequency control apparatus 7 according to the compressor 1 of acquisition
Line frequency regulated value adjusts the running frequency of control compressor 1, to improve the thermal-stable of hot water machine during heating
And heating efficiency.In addition, the present embodiment has the influence in view of hot water machine inflow for hot water machine thermal-stable, the present invention
Improve the water inlet mode of hot water machine.Two grades of water flows are formed by the first solenoid valve 13, second solenoid valve 8 and check valve 14,
So as to more accurately control the size of inflow, under the premise of being able to satisfy the water demand of user, reduce due into
The unstable and influence to hot water machine thermal-stable of water.Opening or closing for the first solenoid valve does not limit in the present embodiment
In two above feature, it is also possible to other heating features of hot water machine.Meanwhile the inflow control model of hot water machine is not yet
It is defined in two grades of water flows and its connection relationship, specifically depending on the actual needs of hot water machine.
It further, is the functional block diagram of frequency control apparatus first embodiment of the present invention, this implementation referring to Fig. 2, Fig. 2
Example frequency control apparatus include:
Environment temperature obtains module 10, for obtaining the environment temperature sensor and detecting after the compressor start
Environment temperature；
Memory module 20, for storing for each respectively arranged environment temperature of temperature range and initial launch frequency
The mapping table of rate；
Frequency initial value obtains module 30, and the environment temperature for being detected according to the environment temperature sensor obtains
The initial value of the corresponding compressor operating frequency of the preset environment temperature that is detected with the environment temperature sensor；
Original frequency operation control module 40, for controlling the compressor with the initial value of the compressor operating frequency
Continuous service preset time.
Environment temperature sensor 12 is provided in the external structure of finned heat exchanger 3, it is logical that environment temperature obtains module 10
The collected ambient temperature of environment temperature sensor 12 is crossed, while frequency initial value obtains module 30 and obtains according to environment temperature
The corresponding environment temperature in different temperatures section that is stored in the collected environment temperature of modulus block 10 and memory module 20 and just
The mapping table of beginning running frequency obtains the corresponding pressure of the preset environment temperature that detects with the environment temperature sensor
The initial value of contracting machine running frequency.When hot water machine unlatching (namely compressor 1 starts) is heated, hot water machine inlet water temperature value one
As all can be more much lower than water temperature value set by user, therefore, in order to reduce the frequent adjustment of compressor operating frequency, while
Further speed up the heating speed of hot water.An initial launch duration is preset in the present embodiment, and in this initial launch duration,
Original frequency operation control module 40 keeps the initial value of compressor operating frequency constant, thus can be with when hot water machine starting heating
Within a short period of time then water temperature heating is again finely adjusted water temperature to higher temperature.The initial launch duration can be with
It is modified according to situations such as practical heating state of hot water machine, inlet water temperature value, initial launch duration is preferred in the present embodiment
It is preset as 1 minute.
In the present embodiment, by presetting the compressor initial launch frequency at a temperature of varying environment, to reduce environment
Influence of the temperature for hot water machine.Meanwhile to further increase the heating speed of hot water machine, a default initial launch duration,
Keep the initial value of compressor operating frequency constant in this initial launch duration.It is initial by the above pre-set compressor
Initial launch duration when running frequency value and compressor start, so that hot water machine can adapt to different environment temperatures and holding
Good heating efficiency and heating efficiency.
It further, is the functional block diagram of frequency control apparatus second embodiment of the present invention referring to Fig. 3, Fig. 3, based on upper
State frequency control apparatus first embodiment of the present invention, the frequency control apparatus of the present embodiment further include:
Water temperature obtains module 50, for obtaining the leaving water temperature value in the current preset unit time；
The leaving water temperature that hot water machine is controlled for preferably dynamic, has preset the unit time in the present embodiment, when the unit
Between also for compressor operating frequency adjust interval time, this unit time can according to hot water machine heat actual conditions carry out
It modifies, is preferably arranged to 40 seconds in the present embodiment.At interval of a unit time (40 seconds), water temperature obtains module 50 will
Leaving water temperature sensors by being set to hot water machine hot water outlet pipe road obtain hot water effluent's temperature in the current one time
Angle value.In the present embodiment, the leaving water temperature value in the unit time can be corresponding leaving water temperature value at the beginning of the unit time,
It is also possible to the average value of the leaving water temperature in the entire unit time, or is unit time Mo corresponding leaving water temperature value.
As long as the calculation of the corresponding leaving water temperature value of unit time is consistent.
Judgment module 60, for judging the difference of the leaving water temperature value and default leaving water temperature value whether in preset temperature
In poor range；
The leaving water temperature value that module 50 is got is obtained according to water temperature, judgment module 60 judges the leaving water temperature value
Whether the difference with preset leaving water temperature value is in preset the temperature difference range.If difference is in preset the temperature difference range, explanation
Practical hot water effluent's temperature meets the hot water temperature of user demand, then does not need to control leaving water temperature.Otherwise it needs pair
Leaving water temperature is controlled.The default leaving water temperature value is user's pre-set demand hot water before hot water machine is begun to warm up
Temperature value.The preset the temperature difference range can be modified, for example, the temperature difference be disposed greater than -1 DEG C and less than 1 DEG C in the range of
When, if user can receive, do not need adjustment compressor operating frequency.
Frequency adjustment value obtains module 70, for when the difference is not in preset the temperature difference range, then obtaining default
The compressor operating frequency corresponding with the difference regulated value；
According to the judging result of judgment module 60, when the difference of the leaving water temperature value and default leaving water temperature value is not pre-
If the temperature difference range in when, that is, illustrate that actual hot water effluent's temperature does not meet the hot water temperature of user demand, therefore, it is necessary to right
The leaving water temperature of hot water machine is controlled.In the present embodiment, frequency adjustment value obtains module 70 and obtains the corresponding pressure of the difference
Contracting machine preset operating frequency regulated value, to change the running frequency of compressor.The more high then revolving speed of the frequency of compressor is higher, then presses
Bigger namely hot water machine the heating efficiency of contracting machine acting increases, conversely, the more low then revolving speed of the frequency of compressor is lower, then compresses
Smaller namely hot water machine the heating efficiency of machine acting reduces, to finally realize the purpose to leaving water temperature control.
Referring to table 2, table 2 is leaving water temperature actual value (TOut) and water outlet temperature setting value (TIf) difference △ X and compressor
Mapping table between running frequency regulated value, wherein △ X=TOut-TIf。
Table 2
Corresponding relationship in upper table between △ X and compressor operating frequency regulated value is according to hot water machine real work situation
Calculate the optimal corresponding relationship that obtains, and be not uniquely limit it is constant.
Frequency adjustment module 80 adjusts the compressor under for the regulated value according to the compressor operating frequency
Running frequency in one unit time.
The corresponding compressor operating frequency regulated value of the difference that module 70 obtains, frequency are obtained according to frequency adjustment value
Adjustment module 80 adjusts compressor current operation frequency, to be formed in the running frequency of next unit time inner compressor, from
And it realizes and hot water machine water temperature is controlled.
In the present embodiment, water temperature obtains the practical leaving water temperature value in the acquisition unit time of module 50, and judgment module 60 is sentenced
Difference between disconnected practical leaving water temperature value and the leaving water temperature value of setting, frequency adjustment value obtain module 70 and are obtained according to difference
Corresponding compressor operating frequency regulated value, last frequency adjustment module 80 are adjusted further according to the compressor operating frequency of acquisition
Value adjusts running frequency of the compressor within next unit time.By the running frequency of dynamic regulation compressor to solve
Hot water machine heats the not high problem of unstable and heating efficiency, and lifting hot water adapts to the hot water ability at a temperature of varying environment,
Meet the hot water demand of user.
It further, is the functional block diagram of frequency control apparatus 3rd embodiment of the present invention referring to Fig. 4, Fig. 4, based on this
The frequency adjustment module 80 of the functional block diagram of invention frequency control apparatus second embodiment, the present embodiment includes:
Frequency turns down unit 801, for when the difference is not in preset the temperature difference range and the leaving water temperature senses
When device temperature value detected is greater than the hot water machine preset temperature value, then according to the preset compressor operating frequency tune
Section value turns down current compressor running frequency；
When the difference is not in preset the temperature difference range and leaving water temperature sensors temperature value detected is greater than
When the preset temperature value of the hot water machine namely the leaving water temperature actual value of hot water machine is greater than water outlet temperature setting value, says at this time
Bright compressor work is excessive namely the running frequency of compressor is excessively high, therefore, for the leaving water temperature for reducing hot water machine, frequency tune
Low unit 801 turns down the running frequency value of current compressor according to the preset operating frequency regulated value of the compressor, and then makes
Within next unit time the leaving water temperature value of hot water machine closer to leaving water temperature value set by user.
Unit 802 is turned up in frequency, for when the difference is not in preset the temperature difference range and the leaving water temperature senses
When device temperature value detected is less than the hot water machine preset temperature value, then according to the preset compressor operating frequency tune
Current compressor running frequency is turned up in section value.
When the difference is not in preset the temperature difference range and leaving water temperature sensors temperature value detected is less than
When the preset temperature value of the hot water machine namely the leaving water temperature actual value of hot water machine is less than water outlet temperature setting value, says at this time
Bright compressor work is too small namely the running frequency of compressor is too low, therefore, for the leaving water temperature for improving hot water machine, frequency tune
The running frequency value of current compressor is turned up according to the preset operating frequency regulated value of the compressor for high unit 802, and then makes
Within next unit time the leaving water temperature value of hot water machine closer to leaving water temperature value set by user.
In the present embodiment, according to the difference between the leaving water temperature actual value of hot water machine and the water outlet temperature setting value of hot water machine
It is worth corresponding compressor operating frequency regulated value, the corresponding running frequency for adjusting compressor.When the difference is not in preset temperature
In poor range and when the leaving water temperature sensors temperature value detected is greater than the hot water machine preset temperature value, frequency tune
Low unit 801 then turns down the running frequency value of current compressor according to the preset operating frequency regulated value of the compressor；Work as institute
Difference is stated not in preset the temperature difference range and leaving water temperature sensors temperature value detected is pre- less than the hot water machine
If temperature value when, frequency be turned up unit 802 then according to the preset operating frequency regulated value of the compressor be turned up current compression
The running frequency value of machine.
Referring to Fig. 5, Fig. 5 is hot water machine temperature control method of water first embodiment flow diagram of the present invention, in the present embodiment
In, the hot water machine includes compressor, gas-liquid separator, finned heat exchanger, water-side heat, inlet pipeline, outlet pipeline, ring
Border temperature sensor, leaving water temperature sensors, the hot water machine temperature control method of water include:
Step S10 obtains environment temperature sensor environment temperature detected；
The temperature value of external environment is obtained by environment temperature sensor.
Step S20, according to the temperature range where environment temperature sensor environment temperature detected, described in control
The water inlet gear of inlet pipeline；
The variation of ambient temperature will influence whether the heating effect of hot water machine.When ambient temperature is greater than a certain temperature
When angle value, the heating efficiency of hot water machine will also be promoted, and therefore, can suitably be increased the inflow of hot water machine, be improved heating
Efficiency.When being preferably that ambient temperature is greater than 20 degrees Celsius in the present embodiment, expand the inflow of inlet pipeline.
Step S30 according to environment temperature sensor environment temperature detected and is directed to each humidity province
Between the initial launch frequency of preset environment temperature and compressor respectively mapping table, set the initial fortune of the compressor
Line frequency；
Varying environment temperature suffers from direct influence for the heating efficiency and efficiency of hot water machine, especially for air
For energy heater, at low ambient temperatures, the heating efficiency of air energy heater, which will will appear, substantially to decay, under heating efficiency
Drop, while hot-water heating system can also become unstable, to influence the efficiency of heating.Therefore, by combine varying environment temperature with
And the corresponding mapping table preset compressor initial launch frequency of temperature range where the environment temperature can reduce environment temperature
Spend the influence for hot water machine.
Step S40, it is default according to the leaving water temperature sensors of acquisition leaving water temperature value detected, the hot water machine
Temperature value and the compressor current operation frequency, adjust the compressor operating frequency.
Hot water machine heating process is not one and is evenly heated process, will receive the shadow of various factors in its heating process
It rings, to influence the effect and efficiency of heating.Preferably to reduce influence of the extraneous factor for heating process, the present embodiment
Running frequency by adjusting compressor realizes the control to hot water machine water temperature.The more high then revolving speed of the frequency of compressor is higher, then
Compressor work is bigger namely the heating efficiency of hot water machine increases, conversely, the more low then revolving speed of the frequency of compressor is lower, then presses
Smaller namely hot water machine the heating efficiency of contracting machine acting reduces, to finally realize the purpose to leaving water temperature control.
In the present embodiment, inflow is controlled by temperature range where obtaining ambient temperature, to adapt to hot water machine
Hot water ability under corresponding environment temperature, also, the ambient temperature by detecting selects and the external environment temperature
The mapping table of temperature range where degree, and compression is preset in conjunction with the mapping table and specific ambient temperature
The initial launch frequency of machine realizes optimal initial launch frequency of the compressor at varying environment temperature and inflow, so that
Water temperature quickly reaches more suitable and relatively stable value.In addition, being passed in the present embodiment by the leaving water temperature of acquisition
Sensor leaving water temperature value detected, the preset temperature value of the hot water machine and the compressor current operation frequency are adjusted
The running frequency of compressor realizes effective control to water temperature with this, further increases the heating effect and efficiency of hot water machine.
It further, is hot water machine temperature control method of water second embodiment flow diagram of the present invention, base referring to Fig. 6, Fig. 6
Step S40 includes: in aforementioned present invention hot water machine temperature control method of water first embodiment, the present embodiment
Step S401 obtains the leaving water temperature value in the current preset unit time；
The leaving water temperature that hot water machine is controlled for preferably dynamic, has preset the unit time in the present embodiment, when the unit
Between also for compressor operating frequency adjust interval time, this unit time can according to hot water machine heat actual conditions carry out
It modifies, is preferably arranged to 40 seconds in the present embodiment.At interval of a unit time (40 seconds), by being set to hot water machine heat
Leaving water temperature sensors on water outlet pipeline obtain hot water effluent's temperature value in the current one time.In the present embodiment,
Leaving water temperature value in the unit time can be corresponding leaving water temperature value at the beginning of the unit time, when being also possible to entire unit
The average value of interior leaving water temperature, or be unit time Mo corresponding leaving water temperature value.As long as unit time is corresponding
Leaving water temperature value calculation it is consistent.
Whether step S402 judges the difference of the leaving water temperature value and default leaving water temperature value in preset the temperature difference range
It is interior；
According to the leaving water temperature value got in step S401, the leaving water temperature value and preset water temperature out are judged
Whether the difference of angle value is in preset the temperature difference range.If difference in preset the temperature difference range, illustrates practical hot water effluent's temperature
Degree meets the hot water temperature of user demand, then does not need to control leaving water temperature.Otherwise it needs to control leaving water temperature
System.The default leaving water temperature value is user's pre-set demand hot water temperature value before hot water machine is begun to warm up.It is described pre-
If the temperature difference range can modify, such as the temperature difference be disposed greater than -1 DEG C and less than 1 DEG C in the range of when, user can connect
By, then do not need adjustment compressor operating frequency.
Step S403 is then obtained preset corresponding with the difference when the difference is not in preset the temperature difference range
The compressor operating frequency regulated value；
According to the judging result of step S402, when the difference of the leaving water temperature value and default leaving water temperature value is not default
The temperature difference range in when, that is, illustrate that actual hot water effluent's temperature does not meet the hot water temperature of user demand, therefore, it is necessary to heat
The leaving water temperature of water dispenser is controlled.In the present embodiment, the corresponding compressor preset operating frequency regulated value of the difference is obtained,
To change the running frequency of compressor.The more high then revolving speed of the frequency of compressor is higher, then compressor work is bigger namely hot water machine
Heating efficiency increase, conversely, the more low then revolving speed of the frequency of compressor is lower, then compressor work is smaller namely hot water machine
Heating efficiency reduces, to finally realize the purpose to leaving water temperature control.
Step S404 adjusts the compressor in next list according to the regulated value of the compressor operating frequency
Running frequency in the time of position.
According to the corresponding compressor operating frequency regulated value of the difference obtained in step S403, it is current to adjust compressor
Running frequency, to be formed in the running frequency of next unit time inner compressor.For example, when △ X is -5 DEG C and current one
Interior corresponding compressor frequency is 50 hertz, then corresponds to look-up table 1, obtains corresponding compressor frequency tune when △ X is -5 DEG C
Section value is+8 hertz, is 58 hertz (58 hertz=50 hertz+8 in the running frequency of next unit time inner compressor therefore
Hertz).For example, △ X is 2 DEG C and corresponding compressor frequency is 60 hertz in the current one time, then look-up table 1 is corresponded to, is obtained
Corresponding compressor frequency regulated value is -3 hertz when to △ X being 2 DEG C, therefore, in the fortune of next unit time inner compressor
Line frequency is 57 hertz (57 hertz=60 hertz -3 hertz).
In the present embodiment, for control water temperature this purpose is better achieved, the present invention pre-sets varying environment temperature
Optimal compressor operating frequency is corresponded under the optimal compressor initial launch frequency of lower correspondence, and different water temperature situations of change
Regulated value.By obtaining the practical leaving water temperature value of unit time Mo, the leaving water temperature of practical leaving water temperature value and setting is judged
Difference between value, and corresponding compressor operating frequency regulated value is obtained according to difference, finally further according to the compressor of acquisition
Running frequency regulated value adjusts running frequency of the compressor within next unit time.Pass through the fortune of dynamic regulation compressor
To solve the problems, such as that it is not high that hot water machine heats unstable and heating efficiency, lifting hot water adapts at a temperature of varying environment line frequency
Hot water ability, meet the hot water demand of user.
It further, is hot water machine temperature control method of water 3rd embodiment flow diagram of the present invention, base referring to Fig. 7, Fig. 7
In aforementioned present invention hot water machine temperature control method of water second embodiment, the hot water machine temperature control method of water of the present embodiment is in above-mentioned step
Suddenly S404 includes:
Step S4041, when the difference is not in preset the temperature difference range and the leaving water temperature sensors are detected
When temperature value is greater than the hot water machine preset temperature value, is then turned down and worked as according to the preset compressor operating frequency regulated value
Preceding compressor operating frequency；
When the difference is greater than zero namely the leaving water temperature actual value of hot water machine is greater than water outlet temperature setting value, at this time
Illustrate that compressor work is excessive namely the running frequency of compressor is excessively high, therefore, for the leaving water temperature for reducing hot water machine, needs
The running frequency value that current compressor is turned down according to the preset operating frequency regulated value of the compressor, so that next
The leaving water temperature value of hot water machine is closer to leaving water temperature value set by user in unit time.
Step S4042, when the difference is not in preset the temperature difference range and the leaving water temperature sensors are detected
When temperature value is less than the hot water machine preset temperature value, then worked as according to the preset compressor operating frequency regulated value height-regulating
Preceding compressor operating frequency.
When the difference is less than zero namely the leaving water temperature actual value of hot water machine is less than water outlet temperature setting value, at this time
Illustrate that compressor work is too small namely the running frequency of compressor is too low, therefore, for the leaving water temperature for improving hot water machine, needs
The running frequency value of current compressor is turned up according to the preset operating frequency regulated value of the compressor, so that next
The leaving water temperature value of hot water machine is closer to leaving water temperature value set by user in unit time.
In the present embodiment, according to the difference between the leaving water temperature actual value of hot water machine and the water outlet temperature setting value of hot water machine
It is worth corresponding compressor operating frequency regulated value, the corresponding running frequency for adjusting compressor.When the difference is greater than zero, then root
The running frequency value of current compressor is turned down according to the preset operating frequency regulated value of the compressor；When stating difference less than zero,
The running frequency value of current compressor is then turned up according to the preset operating frequency regulated value of the compressor.
It further, is hot water machine temperature control method of water fourth embodiment flow diagram of the present invention, base referring to Fig. 8, Fig. 8
In aforementioned present invention hot water machine temperature control method of water 3rd embodiment, the hot water machine temperature control method of water of the present embodiment is in above-mentioned step
Include: before rapid S401
Step S4001 obtains the environment temperature that the environment temperature sensor detects；
Step S4002, according to the environment temperature that the environment temperature sensor detects, in the corresponding mapping relations
The initial of the corresponding compressor operating frequency of the preset environment temperature detected with the environment temperature sensor is obtained in table
Value；
Step S4003 controls the compressor with the initial value continuous service preset time of the compressor operating frequency.
Varying environment temperature suffers from direct influence for the heating efficiency and efficiency of hot water machine, especially for air
For energy heater, at low ambient temperatures, the heating efficiency of air energy heater, which will will appear, substantially to decay, under heating efficiency
Drop, while hot-water heating system can also become unstable, to influence the efficiency of heating.Therefore, at a temperature of by default varying environment
Compressor operating frequency to reduce influence of the environment temperature for hot water machine.
When hot water machine unlatching (namely compressor start) is heated, hot water machine inlet water temperature value generally can all be set than user
Fixed water temperature value wants much lower, therefore, in order to reduce the frequent adjustment of compressor operating frequency, while also further speeding up hot water
Heating speed.An initial launch duration is preset in the present embodiment, and in this initial launch duration, keep compressor operation
The initial value of frequency is constant, thus when hot water machine starting heating can within a short period of time by water temperature heating to higher temperature,
Then water temperature is finely adjusted again.The initial launch duration can practical heating state according to hot water machine, inlet water temperature value
Situations such as modify, initial launch duration is preferably preset as 1 minute in the present embodiment.
In the present embodiment, by presetting the compressor initial launch frequency at a temperature of varying environment, to reduce environment
Influence of the temperature for hot water machine.Meanwhile to further increase the heating speed of hot water machine, when by presetting an initial launch
It is long, and keep the initial value of compressor operating frequency constant in this initial launch market.Pass through the above pre-set compression
Initial launch duration when machine initial launch frequency values and compressor start, so that hot water machine can adapt to different environment temperatures
And keep good heating efficiency and heating efficiency.
Further, hot water machine temperature control method of water fourth embodiment of the present invention, hot water machine water temperature control of the present invention are based on
The hot water machine temperature control method of water of the 5th embodiment of method further include: default according to the compressor operating frequency and continuous service
Time controls the water inlet gear of the inlet pipeline.
When the compressor operating frequency is lower than predeterminated frequency threshold value, and continues preset time, hot water function is guaranteeing
While user's water demand, more cold water can be reheated.The preset time and predeterminated frequency threshold value can be according to heat
The practical heating state of water dispenser and modify.In the present embodiment, the preset threshold time is preferably 30 minutes, and compressor is preset
Frequency threshold is preferably 60 hertz.Namely compressor operating frequency is continuously within 60 hertz, and keeps transporting within 60 hertz
When line frequency is more than 30 minutes, it can suitably increase inflow.In the case, increase inflow, can further make
The heating efficiency of hot water machine keeps stablizing.Such as by taking hot water machine in Fig. 1 as an example, when the compressor operating frequency is lower than default frequency
Rate threshold value, and when lasting preset time, then the first solenoid valve is opened, is formed so as to form the first solenoid valve and second solenoid valve
A water inlet branch and check valve and second solenoid valve composition another water inlet branch, so as to form two grades of waters.
In the present embodiment, it is contemplated that influence of the hot water machine inflow for hot water machine thermal-stable, present invention improves over
The water inlet mode of hot water machine.According to the practical heating state of hot water machine, a water inlet branch is selectively turned on or closes, thus
Realize the control to amount of inlet water.Two grades of waters are formed by the first solenoid valve, second solenoid valve and check valve, so as to more
It is reduced under the premise of being able to satisfy the water demand of user since inflow is unstable for the size for accurately controlling inflow
And the influence to hot water machine thermal-stable.The inflow control model of hot water machine is not limited to described two grades in the present embodiment
Water flow and its connection relationship both can choose any one of numerous inflow control models, and can also pass through decision logic
All inflow control models are connected, and trigger corresponding inflow control model by specified conditions, it is specific to regard
Depending on the actual needs of hot water machine.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of hot water machine, including compressor, gas-liquid separator, finned heat exchanger, water-side heat, inlet pipeline, outlet pipe
Road, environment temperature sensor, leaving water temperature sensors, which is characterized in that the hot water machine further include: water inlet quantity regulating device and
Frequency control apparatus；Wherein,
The water inlet quantity regulating device is set on the inlet pipeline and connect with the environment temperature sensor, is used for basis
Temperature range where the environment temperature sensor environment temperature detected, controls the water inlet gear of the inlet pipeline；
The frequency control apparatus is connect with the compressor, the environment temperature sensor, the leaving water temperature sensors, institute
State the initial launch frequency that frequency control apparatus is respectively arranged with environment temperature and compressor for each temperature range
Mapping table；Environment temperature that the frequency control apparatus is used to be detected according to the environment temperature sensor and described
Mapping table is arranged the initial launch frequency of the compressor, and for according to leaving water temperature, hot water machine preset temperature with
And compressor current operation frequency, adjust the compressor operating frequency.
2. hot water machine as described in claim 1, which is characterized in that the frequency control apparatus includes:
Environment temperature obtains module, for obtaining the environment that the environment temperature sensor detects after the compressor start
Temperature；
Memory module is directed to reflecting for each respectively arranged environment temperature of temperature range and initial launch frequency for storing
Penetrate relation table；
Frequency initial value obtains module, the environment temperature for detecting according to the environment temperature sensor, in corresponding institute
It states and obtains the corresponding compressor operation of the preset environment temperature detected with the environment temperature sensor in mapping table
The initial value of frequency；
Original frequency operation control module is persistently transported for controlling the compressor with the initial value of the compressor operating frequency
Row preset time.
3. hot water machine as claimed in claim 1 or 2, which is characterized in that the frequency control apparatus further include:
Water temperature obtains module, for obtaining the leaving water temperature value in the current preset unit time；
Judgment module, for judging the difference of the leaving water temperature value and default leaving water temperature value whether in preset the temperature difference range
It is interior；
Frequency adjustment value obtains module, for when the difference is not in preset the temperature difference range, then obtaining preset and institute
State the regulated value of the corresponding compressor operating frequency of difference；
Frequency adjustment module adjusts the compressor in next institute for the regulated value according to the compressor operating frequency
State the running frequency in the unit time.
4. hot water machine as claimed in claim 3, which is characterized in that the frequency adjustment module includes:
Frequency turns down unit, for when the difference is not in preset the temperature difference range and the leaving water temperature sensors are detected
Temperature value when being greater than the preset temperature value of the hot water machine, then turned down according to the preset compressor operating frequency regulated value
Current compressor running frequency；
Unit is turned up in frequency, for when the difference is not in preset the temperature difference range and the leaving water temperature sensors are detected
Temperature value when being less than the preset temperature value of the hot water machine, then be turned up according to the preset compressor operating frequency regulated value
Current compressor running frequency.
5. hot water machine as claimed in claim 4, which is characterized in that the water inlet quantity regulating device includes that inflow adjusts control
Device, the first solenoid valve being set on the inlet pipeline and the check valve in parallel with the solenoid valve, the inflow tune
Section controller is electrically connected with the environment temperature sensor and first solenoid valve respectively.
6. a kind of hot water machine temperature control method of water, which is characterized in that the hot water machine includes compressor, gas-liquid separator, fin
Heat exchanger, water-side heat, inlet pipeline, outlet pipeline, environment temperature sensor, leaving water temperature sensors, the hot water machine
Temperature control method of water includes:
Obtain environment temperature sensor environment temperature detected；
According to the temperature range where environment temperature sensor environment temperature detected, control the inlet pipeline into
Water gear；
Distinguish according to environment temperature sensor environment temperature detected and for each temperature range preset
The mapping table of environment temperature and the initial launch frequency of compressor sets the initial launch frequency of the compressor；
According to the leaving water temperature sensors of acquisition leaving water temperature value detected, the preset temperature value of the hot water machine and
The compressor current operation frequency, adjusts the compressor operating frequency.
7. hot water machine temperature control method of water as claimed in claim 6, which is characterized in that described to go out water temperature according to acquisition
Sensor leaving water temperature value, the preset temperature value of the hot water machine and the compressor current operation frequency detected are spent,
The step of adjusting the compressor operating frequency include:
Obtain the leaving water temperature value in the current preset unit time；
Judge the difference of leaving water temperature value in the current preset unit time and default leaving water temperature value whether preset
In the temperature difference range；
When the difference is not in preset the temperature difference range, then the preset compressor fortune corresponding with the difference is obtained
The regulated value of line frequency；
According to the regulated value of the compressor operating frequency, operation of the compressor within next unit time is adjusted
Frequency.
8. hot water machine temperature control method of water as claimed in claim 7, which is characterized in that described to run frequency according to the compressor
The regulated value of rate, adjusting running frequency of the compressor within next unit time includes:
When the difference is not in preset the temperature difference range and leaving water temperature sensors temperature value detected is greater than described
When the preset temperature value of hot water machine, then current compressor operation frequency is turned down according to the preset compressor operating frequency regulated value
Rate；
When the difference is not in preset the temperature difference range and leaving water temperature sensors temperature value detected is less than described
When the preset temperature value of hot water machine, then current compressor operation frequency is turned up according to the preset compressor operating frequency regulated value
Rate.
9. hot water machine temperature control method of water as claimed in claim 7 or 8, which is characterized in that described according to the environment temperature
Sensor environment temperature detected and for each temperature range distinguish preset environment temperature and compressor just
The mapping table of beginning running frequency, the initial launch frequency for setting the compressor include:
Obtain the environment temperature that the environment temperature sensor detects；
According to the environment temperature that the environment temperature sensor detects, obtained in the corresponding mapping table preset
The initial value of compressor operating frequency corresponding with the environment temperature that the environment temperature sensor detects；
The compressor is controlled with the initial value continuous service preset time of the compressor operating frequency.
10. hot water machine temperature control method of water as claimed in claim 9, which is characterized in that described to be passed according to the environment temperature
Temperature range where sensor environment temperature detected controls the water inlet gear replacement of the inlet pipeline are as follows:
According to the compressor operating frequency and continuous service preset time, the water inlet gear of the inlet pipeline is controlled.
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| CN107120843B (en) * | 2017-06-05 | 2020-06-30 | 广东美的暖通设备有限公司 | Control method and control device of water heater, water heater and computer equipment |
| CN109059376A (en) * | 2018-08-13 | 2018-12-21 | 珠海格力电器股份有限公司 | A kind of full frequency conversion heat pump system constant temperature water supply control method and system |
| CN109297222B (en) * | 2018-08-21 | 2020-02-07 | 珠海格力电器股份有限公司 | Control method of heat pump hot water unit |
| CN109579348A (en) * | 2018-12-04 | 2019-04-05 | 宁波工程学院 | The multi-functional multi-joint dry type capillary radiation heat pump unit of one kind and its control method |
| CN111811147B (en) * | 2020-06-03 | 2021-06-11 | 珠海格力电器股份有限公司 | Group control method, device and system of water heater and group control host |
| CN112413901B (en) * | 2020-11-20 | 2022-02-11 | 珠海格力电器股份有限公司 | Control method and device of heat pump water heater, electronic equipment and storage medium |
| CN113669968A (en) * | 2021-08-13 | 2021-11-19 | 广东纽恩泰新能源科技发展有限公司 | Energy regulation control method for variable-frequency compressor of air-source heat pump |
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| CN201715705U (en) * | 2009-12-10 | 2011-01-19 | 广东万家乐燃气具有限公司 | Fully premixed condensing gas heating hot water furnace |
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