CN103528188A - Air source hot water machine system and control method thereof - Google Patents
Air source hot water machine system and control method thereof Download PDFInfo
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- CN103528188A CN103528188A CN201310539300.2A CN201310539300A CN103528188A CN 103528188 A CN103528188 A CN 103528188A CN 201310539300 A CN201310539300 A CN 201310539300A CN 103528188 A CN103528188 A CN 103528188A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 165
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000007613 environmental effect Effects 0.000 claims description 36
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 33
- 238000001514 detection method Methods 0.000 claims description 19
- 239000003507 refrigerant Substances 0.000 claims description 15
- 238000004321 preservation Methods 0.000 claims description 10
- 238000009825 accumulation Methods 0.000 claims description 5
- 238000011017 operating method Methods 0.000 claims description 2
- 239000008399 tap water Substances 0.000 abstract 1
- 235000020679 tap water Nutrition 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 description 8
- 238000010257 thawing Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The invention discloses an air source hot water machine system and a control method thereof. The air source hot water machine system comprises a condenser, a four-way valve, a shell and tube heat exchanger, an electronic expansion valve, an inverter compressor, an outdoor fan, a water mixer, a first electronic flow valve, a second electronic flow valve, a controller, a first temperature sensor, a second temperature sensor and a third temperature sensor. One end of the first electronic flow valve is connected with a water outlet pipe of the condenser, and the other end of the first electronic flow valve is connected with the water mixer. One end of the second electronic flow valve is connected with a tap water pipe, and the other end of the second electronic flow valve is connected with the water mixer. The controller is used for controlling the inverter compressor and the outdoor fan according to the temperature detected by the first temperature sensor, so that the inverter compressor operates according to a preset frequency corresponding to the current environment temperature, and the outdoor fan operates according to a preset rotation speed corresponding to the current environment temperature. The controller is further used for controlling the open degree of the first electronic flow valve and the open degree of the second electronic flow valve according to the temperature detected by the second temperature sensor and the temperature detected by the third temperature sensor.
Description
Technical field
The present invention relates to technical field of heating, particularly a kind of air source water heater system and control method thereof.
Background technology
As everyone knows, the existing air source water heater of existing market is sold, but main two types of product: circulating hot water machine and directly-heated type hot water machine.Circulating hot water mechanism hot water taking is longer, can not hot water without interruption; And existing directly-heated type hot water machine is when the lower northern area applications of environment temperature, because inflow temperature is low, heating capacity is also lower simultaneously, but leaving water temperature still will remain on 55 degree, so discharge is very little, easily occurs the situation of hot water amount's deficiency.In addition, freezing in order to prevent condenser during the defrosting of the shell and tube exchanger of existing directly-heated type hot water machine, be to need upper and lower two shell and tube exchangers to realize defrosting, greatly reduce the service efficiency of shell and tube exchanger.
Summary of the invention
Main purpose of the present invention is to provide a kind of air source water heater system and control method thereof, is intended to solve the low technical problem of service efficiency of the not enough and shell and tube exchanger of region water yield that environment temperature is low.
To achieve these goals, the invention provides a kind of air source water heater system, described air source water heater system comprises condenser, cross valve, shell and tube exchanger, electric expansion valve, compressor and outdoor fan, and described air source water heater system also comprises water-water jet, the first electronic flow valve, the second electronic flow valve, controller, for detection of the first temperature sensor of environment temperature, for detection of the second temperature sensor of the refrigerant temperature of condensator outlet and for detection of the three-temperature sensor of water-water jet leaving water temperature; Wherein first one end of electronic flow valve and the outlet pipe of described condenser are connected, and the other end is connected with described water-water jet; One end of described the second electronic flow valve is connected with running water pipe, and the other end is connected with described water-water jet; The temperature of described controller for detecting according to the first temperature sensor, controls frequency-changeable compressor according to the predeterminated frequency operation corresponding with current environmental temperature, controls outdoor fan according to the preset rotation speed operation corresponding with current environmental temperature; Described controller also, for according to the temperature of the temperature of the second temperature sensor detection and three-temperature sensor detection, is controlled the aperture of the first electronic flow valve and the second magnitude of current valve.
Preferably, described air source water heater system also comprises a tube connector, one end of described tube connector is connected with described running water pipe, and the other end is connected with the water inlet pipe of described condenser, and described tube connector is provided with one and from running water pipe, flows to the check valve of condenser for current.
Preferably, described air source water heater system also comprises the water side magnetic valve being connected between described check valve and the water inlet pipe of described condenser, the booster water pump that is connected to water side magnetic valve two ends and for detection of the pressure switch of the water inlet inner pipe water pressure of described condenser
The present invention also provides a kind of control method of air source water heater system, and the control method of described air source water heater system comprises the following steps:
Receive the temperature that user arranges, and detect current environment temperature;
Control frequency-changeable compressor according to the predeterminated frequency operation corresponding with current environmental temperature, control outdoor fan according to the preset rotation speed operation corresponding with current environmental temperature;
When temperature that the temperature of condensator outlet arranges higher than described user, control described the first electronic flow valve and open the default aperture corresponding with current environmental temperature;
When temperature that the leaving water temperature of water-water jet arranges higher than described user, control the second electronic flow valve and open;
With the first preset speed, increase gradually the aperture of described the second electronic flow valve, until the leaving water temperature of described water-water jet equals the temperature that user arranges.
Preferably, carrying out the described aperture that increases gradually described the second electronic flow valve with the first preset speed, until the leaving water temperature of described water-water jet equals the step of the temperature of user's setting, also comprising afterwards:
Whether the aperture that judges the second electronic flow valve is less than the aperture threshold value corresponding with described current environmental temperature;
When the aperture of the second electronic flow valve is less than aperture threshold value, the aperture of controlling described the second electronic flow valve with the second preset speed increases to described aperture threshold value, and with the 3rd preset speed, controls the frequency increase of described frequency-changeable compressor operation.
Preferably, increase to described aperture threshold value carrying out the described aperture of controlling described the second electronic flow valve with the second preset speed, and also comprise after controlling with the 3rd preset speed the step that the frequency of described frequency-changeable compressor operation increases:
The frequency of the aperture of the second electronic flow valve and the operation of described frequency-changeable compressor when being kept at the second electronic flow valve opening and being greater than aperture threshold value;
When the time interval of the hot water machine last operation of range ability is next time less than Preset Time, using the aperture of the aperture of preservation second electronic flow valve when hot water machine moves next time, using the frequency of the frequency of preservation frequency-changeable compressor operation when hot water machine moves next time.
Preferably, carrying out the described aperture of the second electronic flow valve when the aperture of preservation is once moved on hot water machine, after the frequency step of the frequency of preservation frequency-changeable compressor operation when hot water machine moves next time, also comprising:
According to the magnitude relationship of the temperature of water-water jet leaving water temperature and described user setting, regulate the aperture of the second electronic flow valve.
Preferably, after opening default aperture step, described the first electronic flow valve of the described control of execution also comprises:
Whether the water inlet inner pipe water pressure that judges condenser is greater than hydraulic pressure threshold value;
If so, control water side magnetic valve and open, control booster water pump and close;
If not, control water side closed electromagnetic valve, control booster water pump and open.
Preferably, carrying out described control frequency-changeable compressor according to the predeterminated frequency operation corresponding with described current environmental temperature, controlling outdoor fan and also comprise according to before the preset rotation speed operating procedure corresponding with described current environmental temperature:
Analyze the residing temperature range of described current environmental temperature;
Obtain predeterminated frequency corresponding to described temperature range, preset rotation speed, default aperture and aperture threshold value.
Preferably, described control method further comprises: after having heated, detect current environmental temperature, if current environmental temperature is less than-1 degree, condenser is carried out to accumulation of heat; When the refrigerant temperature of condensator outlet is spent higher than 50, carry out defrost operation, until the refrigerant temperature of condensator outlet is less than-1 degree.
Compared to prior art, air source water heater system of the present invention and control method thereof are controlled the frequency of frequency-changeable compressor and the rotating speed of outdoor fan according to environment temperature, thereby can be in the situation that ambient temperature be lower, by improving the frequency of frequency-changeable compressor and the rotating speed of outdoor fan, to improve the exchange capability of heat of condenser, thereby guarantee that air source water heater, when the lower area applications of environment temperature, also has enough water yields, to meet user's demand.In addition, air source water heater system of the present invention is first carried out accumulation of heat to condenser before automatic defrosting, can effectively prevent at defrost process condenser freezing, thereby only need a shell and tube exchanger can realize defrosting, greatly increased the service efficiency of shell and tube exchanger.
Accompanying drawing explanation
Fig. 1 is the structural representation of air source water heater system one preferred embodiment of the present invention;
Fig. 2 is the schematic flow sheet of control method first embodiment of air source water heater system of the present invention;
Fig. 3 is the schematic flow sheet of control method second embodiment of air source water heater system of the present invention;
Fig. 4 is the schematic flow sheet of control method the 3rd embodiment of air source water heater system of the present invention;
Fig. 5 is the schematic flow sheet of control method the 4th embodiment of air source water heater system of the present invention.
The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
The specific embodiment
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The invention provides a kind of air source water heater system.
With reference to Fig. 1, Fig. 1 is the structural representation of air source water heater system one preferred embodiment of the present invention.The air source water heater system that the present embodiment provides comprises condenser 10, cross valve 26, shell and tube exchanger 11, electric expansion valve 27, frequency-changeable compressor 12, outdoor fan 13, water-water jet 14, the first electronic flow valve 15, the second electronic flow valve 16, controller (not shown), the first temperature sensor 17 for detection of environment temperature, the second temperature sensor 18 of the refrigerant temperature exporting for detection of condenser 10, and for detection of the three-temperature sensor 19 of water-water jet 14 leaving water temperatures, wherein one end of the first electronic flow valve 15 is connected with the outlet pipe 101 of described condenser 10, and the other end is connected with described water-water jet 14, one end of described the second electronic flow valve 16 is connected with running water pipe 22, and the other end is connected with described water-water jet 14, the temperature of described controller for detecting according to the first temperature sensor 17, controls frequency-changeable compressor 12 according to the predeterminated frequency operation corresponding with current environmental temperature, controls outdoor fan 13 according to the preset rotation speed operation corresponding with current environmental temperature.Described controller also, for according to the temperature of the temperature of the second temperature sensor 18 detections and three-temperature sensor 19 detections, is controlled the aperture of the first electronic flow valve 15 and the second magnitude of current valve 16.
In the present embodiment, above-mentioned the first temperature sensor 17 can be arranged on shell and tube exchanger 11.
During work, first by user, start air source water heater system, one temperature M is set, now the first temperature sensor 17 detects current environmental temperature, described controller will be controlled frequency-changeable compressor 12 according to the predeterminated frequency operation corresponding with current environmental temperature, control outdoor fan 13 according to the preset rotation speed operation corresponding with current environmental temperature, thereby make the water heating in condenser 10, when the second temperature sensor 18 detects the temperature M that the refrigerant temperature of condenser 10 outlet arranges higher than user, described the second temperature sensor 18 outputs control signals to controller, controller is controlled the first electronic flow valve 15 according to this control signal and is opened the default aperture corresponding with current environmental temperature, when three-temperature sensor 19 detects the temperature M that leaving water temperature arranges higher than user, described controller is opened control the second electronic flow valve 16, and increase with the aperture that the first preset speed is controlled described the second electronic flow valve, until the temperature that three-temperature sensor 19 detects is while equaling temperature M that user arranges, described controller is controlled the second electronic flow valve 16 and is kept current aperture, thereby in water-water jet 14, is mixed and reached the temperature M that user arranges by hot water and cold water.
Above-mentioned air source water heater system also comprises a tube connector 20, one end of described tube connector 20 is connected with described running water pipe 22, the other end is connected with the water inlet pipe 102 of described condenser 10, and described tube connector 20 is provided with one and from running water pipe 22, flows to the check valve 21 of condenser 10 for current.
Further, above-mentioned air source water heater system also comprises the water side magnetic valve 23 being connected between described check valve 21 and the water inlet pipe 102 of described condenser 10, the booster water pump 24 that is connected to water side magnetic valve 23 two ends and for detection of the pressure switch 25 of the water inlet pipe 102 interior hydraulic pressure of described condenser 10.Described water lateral pressure switch 25 is further connected with described controller, and when described pressure switch 25 detects hydraulic pressure and is less than hydraulic pressure threshold value, described controller is controlled described booster water pump 24 and opened, and described water side magnetic valve 23 cuts out; When described pressure switch 25 detects hydraulic pressure and is more than or equal to hydraulic pressure threshold value, described controller controls described booster water pump 24 and cuts out, and described water side magnetic valve 23 is opened.
The present invention also provides a kind of control method that is applied to above-mentioned air source water heater system, and in conjunction with Fig. 2, Fig. 2 is the schematic flow sheet of air-source hot-water heating system machine control method of the present invention the first embodiment.The air source water heater system control method that the present embodiment provides comprises the following steps:
Step S10, receives the temperature M that user arranges, and detects current environment temperature;
Step S11, controls frequency-changeable compressor 12 according to the predeterminated frequency operation corresponding with current environmental temperature, controls outdoor fan 13 according to the preset rotation speed operation corresponding with current environmental temperature;
Step S12, when temperature M that the refrigerant temperature of condenser 10 outlet arranges higher than user, controls described the first electronic flow valve 15 and opens the default aperture corresponding with current environmental temperature;
Step S13, when temperature M that the leaving water temperature of water-water jet 14 arranges higher than user, controls the second electronic flow valve 16 and opens;
Step S14, increases the aperture of described the second electronic flow valve 16 gradually with the first preset speed, until the leaving water temperature of described water-water jet 14 equals the temperature M that user arranges.
Should illustrate, the size of the preset rotation speed of the predeterminated frequency of above-mentioned compressor 12, outdoor fan 13, the default aperture of the first electronic flow valve 15 sets in advance for different environment temperatures.In the present embodiment, take current environment temperature below as 26 degree, and the temperature that user arranges is that 40 degree, predeterminated frequency are that 40HZ, preset rotation speed are that the default aperture of 500r/m, the first electronic flow valve 15 is that to be 8 step/seconds make detailed description for example for 1000 steps, the first preset speed.
In the present embodiment, first by temperature 40 degree that receive user and arrange, and to detect current environment temperature be 26 degree; Then by this controller, according to the environment temperature detecting, control frequency-changeable compressor 12 and take frequency and move as 40HZ, control outdoor fan 13 with 500r/m operation, thereby water temperature is raise gradually; When the refrigerant temperature of condenser 10 outlet is greater than 40 while spending, controller is opened control the first electronic flow valve 15 with 1000 steps; Now by three-temperature sensor 19, detected the leaving water temperature of water-water jet 14, when the leaving water temperature of water-water jet 14 is greater than 40 while spending, controller by control the second electronic flow valve 16 to open, and control the second electronic flow valve and increase gradually with the speed of 8 step/seconds, now the leaving water temperature of water-water jet 14 will reduce gradually, until the leaving water temperature of water-water jet 14 equals 40 while spending, controller stops the adjusting to the second electronic flow valve 16, so that the second electronic flow valve 16 is opened according to current aperture.
Compared to prior art, air source water heater system of the present invention and control method thereof are controlled the frequency of frequency-changeable compressor 12 and the rotating speed of outdoor fan 13 according to environment temperature, thereby can be in the situation that ambient temperature be lower, by improving the frequency of frequency-changeable compressor 12 and the rotating speed of outdoor fan 13, to improve the exchange capability of heat of condenser 10, thereby guarantee that air source water heater, when the lower area applications of environment temperature, also has enough water yields, to meet user's demand.
In conjunction with Fig. 3, Fig. 3 is the schematic flow sheet of control method second embodiment of air source water heater system of the present invention.Further, based on the first embodiment, in this embodiment, enough in order further to guarantee to offer user hot water amount, after carrying out above-mentioned steps S14, also comprise:
Step S15, judges whether the aperture of the second electronic flow valve 16 is less than the aperture threshold value corresponding with described current environmental temperature;
Step S16, when the aperture of the second electronic flow valve 16 is less than above-mentioned aperture threshold value, the aperture of controlling described the second electronic flow valve 16 with the second preset speed increases to described aperture threshold value, and with the 3rd preset speed, controls the frequency increase of described frequency-changeable compressor 12 operations.
Should be noted that, above-mentioned aperture threshold value pre-sets for different environment temperatures, the large I of above-mentioned the second preset speed and the 3rd preset speed sets in advance according to actual needs, below take aperture threshold value as 1700 steps, the second preset speed as 24 step/seconds, the 3rd preset speed makes detailed description as 3HZ/min.
Reach water-water jet 14 output water temperatures be 40 degree constant after, again judge whether the second electronic flow valve 16 is less than 1700 steps.If the second electronic flow valve 16 is less than 1700 steps, by controller, control the second electronic flow valve 16 and increase to 1700 steps with the speed of 24 step/seconds, in the process that the second electronic flow valve 16 is regulated, constant in order to guarantee the water temperature of water-water jet 14 outputs, controller increases the frequency of frequency-changeable compressor 12 operations by controlling frequency-changeable compressor 12 with 3HZ/min.
In conjunction with Fig. 4, Fig. 4 is the schematic flow sheet of control method the 3rd embodiment of air source water heater system of the present invention.Further, based on the second embodiment, in the present embodiment, after carrying out above-mentioned steps S16, also comprise:
Step S17, the frequency of the aperture of the second electronic flow valve 16 and 12 operations of described frequency-changeable compressor when being kept at the second electronic flow valve 16 apertures and being greater than aperture threshold value;
Step S18, when the time interval of the hot water machine last operation of range ability is next time less than Preset Time, using the aperture of the aperture of preservation second electronic flow valve 16 when hot water machine moves next time, using the frequency of the frequency of preservation frequency-changeable compressor 12 operations when hot water machine moves next time.
Should be noted that, the large I of above-mentioned Preset Time arranges according to actual needs, in the present embodiment, this Preset Time is preferably 12 hours, because the variable quantity of environment temperature in 12 hours is less, therefore by preserving the parameter of the second electronic flow valve 16 and frequency-changeable compressor 12 while moving last time, when moving next time, can directly control the second electronic flow valve 16 and frequency-changeable compressor 12 directly moves with the parameter of operation last time, thereby shorten the adjustment time.
In conjunction with Fig. 5, Fig. 5 is the schematic flow sheet of control method the 4th embodiment of air source water heater system of the present invention.Further, based on the 3rd embodiment, in the present embodiment, after above-mentioned steps S18, also comprise:
Step S19, the magnitude relationship of the temperature M arranging according to water-water jet 14 leaving water temperatures and described user regulates the aperture of the second electronic flow valve 16.
In the present embodiment, while again moving due to hot water machine, possible environment temperature there are differences, thereby the temperature at water source be there are differences, by the second electronic flow valve 16 is adjusted, thereby can further guarantee that the leaving water temperature of water-water jet 14 reaches the temperature M that user arranges.Particularly, when temperature M that the leaving water temperature of water-water jet 14 arranges higher than user, the aperture of controlling the second electronic flow valve 16 by controller increases; When temperature M that the leaving water temperature of water-water jet 14 arranges lower than user, the aperture of controlling the second electronic flow valve 16 by controller reduces.
The control method of the air source water heater system of fifth embodiment of the invention is than above-described embodiment, and difference is: between execution above-mentioned steps S12 and step S13, also comprise:
Step S20, controls water side magnetic valve 23 and opens, and controls booster water pump 24 and closes;
Step S21, the interior hydraulic pressure of water inlet pipe 102 of detection condenser 10, when the hydraulic pressure detecting is less than hydraulic pressure threshold value, controls water side magnetic valve 23 and closes, and controls booster water pump 24 and opens.
In the present embodiment, because the interior hydraulic pressure of water inlet pipe 102 to condenser 10 detects, therefore can effectively guarantee to flow into the discharge of carrying out heat exchange in condenser 10.
The control method of the air source water heater system of sixth embodiment of the invention is than above-described embodiment, and difference is: between above-mentioned steps S10 and S11, also comprise:
Step S22, analyzes the residing temperature range of described current environmental temperature;
Step S23, obtains predeterminated frequency corresponding to described temperature range, preset rotation speed, default aperture and aperture threshold value.
It should be noted that predeterminated frequency corresponding to said temperature scope and each temperature range, preset rotation speed, default aperture, aperture threshold value can arrange according to actual needs.In the present embodiment, said temperature scope can be divided into 3 sections, and the first temperature range interval is A, the second temperature range interval is B, and the 3rd temperature range interval is V, wherein A >=25 degree, 10 degree > B > 25 degree, 10 degree > C.
Corresponding, in the first temperature range interval, above-mentioned predeterminated frequency is that 40HZ, preset rotation speed 500r/m, default aperture are that 1000 steps, aperture threshold value are 1700 steps;
In the second temperature range interval, above-mentioned predeterminated frequency is that 55HZ, preset rotation speed 800r/m, default aperture are that 600 steps, aperture threshold value are 1000 steps;
In the 3rd temperature range interval, above-mentioned predeterminated frequency is that 70HZ, preset rotation speed 1200r/m, default aperture are that 600 steps, aperture threshold value are 1000 steps.
The control method of the air source water heater system of seventh embodiment of the invention is than above-described embodiment, difference is: if current environmental temperature is less than-1 degree, after heating completes, also need further shell and tube exchanger to be defrosted, comprise the following steps:
Step S24, after having heated, detect current environmental temperature, if current environmental temperature is less than-1 degree, condenser is carried out to accumulation of heat, the interior refrigerant of blast pipe that is frequency-changeable compressor 12 arrives condenser 10 by cross valve 26, then arrives shell and tube exchanger 11 through electric expansion valve 27;
Step S25, when the refrigerant temperature of condenser 10 outlets is spent higher than 50, carry out defrost operation, the interior refrigerant of blast pipe that is frequency-changeable compressor 12 arrives shell and tube exchanger 11 by cross valve 26, after electric expansion valve 27 throttlings, flow into condenser 10 again, until the refrigerant temperature of condenser 10 outlets is less than-1 degree.
It should be noted that in described step S24, the frequency of frequency-changeable compressor 12 can be the rotating speed 800r/m of 50HZ, outdoor fan 13, the aperture of electric expansion valve 27 can be 200 steps; In step S25, the aperture that the rotating speed that the frequency of frequency-changeable compressor 12 can be 70HZ, outdoor fan 13 can be 0r/m, electric expansion valve 27 can be 380 steps.
Air source water heater system of the present invention is first carried out accumulation of heat to condenser 10 before automatic defrosting, can effectively prevent that condenser 10 is freezing in defrost process, thereby only need a shell and tube exchanger 11 can realize defrosting, greatly increased the service efficiency of shell and tube exchanger 11.
These are only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. an air source water heater system, comprise condenser, cross valve, shell and tube exchanger, electric expansion valve, compressor and outdoor fan, it is characterized in that, described air source water heater system also comprises water-water jet, the first electronic flow valve, the second electronic flow valve, controller, for detection of the first temperature sensor of environment temperature, for detection of the second temperature sensor of the refrigerant temperature of condensator outlet and for detection of the three-temperature sensor of water-water jet leaving water temperature; Wherein first one end of electronic flow valve and the outlet pipe of described condenser are connected, and the other end is connected with described water-water jet; One end of described the second electronic flow valve is connected with running water pipe, and the other end is connected with described water-water jet; The temperature of described controller for detecting according to the first temperature sensor, controls frequency-changeable compressor according to the predeterminated frequency operation corresponding with current environmental temperature, controls outdoor fan according to the preset rotation speed operation corresponding with current environmental temperature; Described controller also, for according to the temperature of the temperature of the second temperature sensor detection and three-temperature sensor detection, is controlled the aperture of the first electronic flow valve and the second magnitude of current valve.
2. air source water heater system as claimed in claim 1, it is characterized in that, described air source water heater system also comprises and a tube connector, one end of described tube connector is connected with described running water pipe, the other end is connected with the water inlet pipe of described condenser, and described tube connector is provided with one and from running water pipe, flows to the check valve of condenser for current.
3. air source water heater system as claimed in claim 2, it is characterized in that, described air source water heater system also comprises the water side magnetic valve being connected between described check valve and the water inlet pipe of described condenser, the booster water pump that is connected to water side magnetic valve two ends and for detection of the pressure switch of the water inlet inner pipe water pressure of described condenser.
4. a control method for the air source water heater system based on described in claims 1 to 3 any one, is characterized in that, comprises the following steps:
Receive the temperature that user arranges, and detect current environment temperature;
Control frequency-changeable compressor according to the predeterminated frequency operation corresponding with current environmental temperature, control outdoor fan according to the preset rotation speed operation corresponding with current environmental temperature;
When temperature that the refrigerant temperature of condensator outlet arranges higher than described user, control described the first electronic flow valve and open the default aperture corresponding with current environmental temperature;
When temperature that the leaving water temperature of water-water jet arranges higher than described user, control the second electronic flow valve and open;
With the first preset speed, increase gradually the aperture of described the second electronic flow valve, until the leaving water temperature of described water-water jet equals the temperature that user arranges.
5. the control method of air source water heater system as claimed in claim 4, it is characterized in that, carrying out the described aperture that increases gradually described the second electronic flow valve with the first preset speed, until the leaving water temperature of described water-water jet equals the step of the temperature of user's setting, also comprising afterwards:
Whether the aperture that judges the second electronic flow valve is less than the aperture threshold value corresponding with described current environmental temperature;
When the aperture of the second electronic flow valve is less than aperture threshold value, the aperture of controlling described the second electronic flow valve with the second preset speed increases to described aperture threshold value, and with the 3rd preset speed, controls the frequency increase of described frequency-changeable compressor operation.
6. the control method of air source water heater system as claimed in claim 5, it is characterized in that, increase to described aperture threshold value carrying out the described aperture of controlling described the second electronic flow valve with the second preset speed, and also comprise after controlling with the 3rd preset speed the step that the frequency of described frequency-changeable compressor operation increases:
The frequency of the aperture of the second electronic flow valve and the operation of described frequency-changeable compressor when being kept at the second electronic flow valve opening and being greater than aperture threshold value;
When the time interval of the hot water machine last operation of range ability is next time less than Preset Time, using the aperture of the aperture of preservation second electronic flow valve when hot water machine moves next time, using the frequency of the frequency of preservation frequency-changeable compressor operation when hot water machine moves next time.
7. the control method of air source water heater system as claimed in claim 6, it is characterized in that, carrying out the described aperture of the second electronic flow valve when the aperture of preservation is once moved on hot water machine, after the frequency step of the frequency of preservation frequency-changeable compressor operation when hot water machine moves next time, also comprising:
According to the magnitude relationship of the temperature of water-water jet leaving water temperature and described user setting, regulate the aperture of the second electronic flow valve.
8. the control method of air source water heater system as claimed in claim 4, is characterized in that, after described the first electronic flow valve of the described control of execution is opened default aperture step, also comprises:
Whether the water inlet inner pipe water pressure that judges condenser is greater than hydraulic pressure threshold value;
If so, control water side magnetic valve and open, control booster water pump and close;
If not, control water side closed electromagnetic valve, control booster water pump and open.
9. the control method of air source water heater system as claimed in claim 4, it is characterized in that, carrying out described control frequency-changeable compressor according to the predeterminated frequency operation corresponding with described current environmental temperature, controlling outdoor fan and also comprise according to before the preset rotation speed operating procedure corresponding with described current environmental temperature:
Analyze the residing temperature range of described current environmental temperature;
Obtain predeterminated frequency corresponding to described temperature range, preset rotation speed, default aperture and aperture threshold value.
10. the control method of air source water heater system as claimed in claim 4, is characterized in that, described control method further comprises: after having heated, detect current environmental temperature, if current environmental temperature is less than-1 degree, condenser is carried out to accumulation of heat; When the refrigerant temperature of condensator outlet is spent higher than 50, carry out defrost operation, until the refrigerant temperature of condenser 10 outlets is less than-1 degree.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884095A (en) * | 2014-03-04 | 2014-06-25 | 江门菲普森电器制造有限公司 | Self-regulation safety air energy water heater |
| CN104075456A (en) * | 2014-07-10 | 2014-10-01 | 珠海格力电器股份有限公司 | Control method and device and water heater |
| CN105091435A (en) * | 2014-05-13 | 2015-11-25 | 珠海格力电器股份有限公司 | Defrosting control method |
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| CN108895662A (en) * | 2018-06-12 | 2018-11-27 | 合肥美的暖通设备有限公司 | Hot water machine and its control method, control device, readable storage medium storing program for executing |
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| CN105091435B (en) * | 2014-05-13 | 2018-09-18 | 珠海格力电器股份有限公司 | Defrosting control method |
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| CN104075456A (en) * | 2014-07-10 | 2014-10-01 | 珠海格力电器股份有限公司 | Control method and device and water heater |
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| CN106288401B (en) * | 2015-05-11 | 2019-03-12 | Tcl空调器(中山)有限公司 | The control method and hot water machine of hot water electric auxiliary heating |
| CN107120843A (en) * | 2017-06-05 | 2017-09-01 | 广东美的暖通设备有限公司 | Control method, control device, water heater, the computer equipment of water heater |
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| CN108895662A (en) * | 2018-06-12 | 2018-11-27 | 合肥美的暖通设备有限公司 | Hot water machine and its control method, control device, readable storage medium storing program for executing |
| CN110715483A (en) * | 2019-10-25 | 2020-01-21 | 广东美的制冷设备有限公司 | Air conditioner, control method and device thereof, and computer-readable storage medium |
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| CN112859938A (en) * | 2021-01-15 | 2021-05-28 | 北京动力机械研究所 | Alcohol adjusting system and control method for high enthalpy engine test bed facility |
| CN112859938B (en) * | 2021-01-15 | 2023-09-08 | 北京动力机械研究所 | Alcohol adjusting system and control method for high-enthalpy engine test bed facility |
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