CN105698382B - Teat pump boiler and its control method - Google Patents
Teat pump boiler and its control method Download PDFInfo
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- CN105698382B CN105698382B CN201610145144.5A CN201610145144A CN105698382B CN 105698382 B CN105698382 B CN 105698382B CN 201610145144 A CN201610145144 A CN 201610145144A CN 105698382 B CN105698382 B CN 105698382B
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- Prior art keywords
- pump boiler
- teat pump
- temperature
- indoor set
- temperature sensor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a kind of Teat pump boiler, the Teat pump boiler includes compressor, outdoor heat exchanger, four-way valve and indoor set, indoor set include thermal siphon, be arranged at indoor set lower housing portion cooling water inlet and be arranged at indoor set housing upper hot water outlet；The water inlet of thermal siphon is provided with the first temperature sensor, and the delivery port of thermal siphon is provided with second temperature sensor；Teat pump boiler also includes controller, when the difference that controller is used between the temperature that the first temperature sensor and second temperature sensor detect is less than the first predetermined threshold value, four-way Vavle switching is controlled, so that Teat pump boiler enters defrost pattern.The invention also discloses a kind of control method of Teat pump boiler.Only judge whether Teat pump boiler needs to carry out defrost by the temperature of the thermal siphon water inlet in indoor set and delivery port in the present invention, the defrosting control to Teat pump boiler is more accurate.
Description
Technical field
The present invention relates to technical field of water heaters, more particularly to a kind of Teat pump boiler and its control method.
Background technology
With the continuous improvement of people's living standards, bigger, traditional combustion gas, electricity are also increasingly come to the demand of hot water
Water heater can have discharge unwanted combustion thing, the easily potential safety hazard such as electric leakage, while consume lacking for the high-quality energy such as coal gas, electricity
Point, air source hot pump water heater are the New-type water heaters after gas heater, electric heater, and it is according to inverse Carnot cycle
Principle, with electrical energy drive compressor, using the state change of refrigerant, hot friendship is carried out using the heat exchanging pipe being arranged in indoor set
Change to be heated to the cold water in indoor set, from sky after the low temperature refrigerant of indoor set outflow enters outdoor heat exchanger after heat exchange
Substantial amounts of heat is absorbed in gas to improve suction temperature, reduces the consumption of electric energy, there is very big energy-saving potential.
However, Teat pump boiler is in the winter time in the very low environment of outdoor temperature in use, the evaporating temperature of refrigerant is very low, it is empty
Moisture in gas easily condenses into frost on outdoor heat exchanger surface, is especially easier out in the big regional frost of air humidity
It is existing, and frosting can then increase outdoor heat exchanger windage, cause outdoor heat exchanger heat transfer coefficient to decline, and further result in heat-pump hot-water
The heating efficiency of device reduces.In the prior art by setting temperature sensor to detect in the middle part of outdoor heat exchanger in outdoor heat exchanger
Temperature determines whether to carry out defrost, i.e., sets the temperature that detects of temperature sensor to be less than preset temperature in outdoor heat exchanger
During value, control Teat pump boiler carries out defrost, but the temperature receipts external environment influence of Teat pump boiler is very big, causes to heat pump
The defrosting control of water heater is not accurate enough.
The content of the invention
It is a primary object of the present invention to propose a kind of Teat pump boiler and its control method, it is intended in the prior art to heat
The defrosting of pump water heater controls not accurate enough technical problem.
To achieve the above object, the present invention provides Teat pump boiler, and the Teat pump boiler includes compressor, outdoor heat exchange
Device, four-way valve and indoor set；Heat exchanging pipe between the outdoor heat exchanger and the four-way valve is arranged in the interior
To heat the cold water in the indoor set in machine, the indoor set includes thermal siphon, is arranged under the housing of the indoor set
The cooling water inlet in portion and be arranged at the indoor set housing upper hot water outlet；The thermal siphon water inlet is arranged at
The bottom of the indoor set, delivery port are arranged at the top of the indoor set, and the water inlet of the thermal siphon is provided with first
Temperature sensor, the delivery port of the thermal siphon are provided with second temperature sensor；The Teat pump boiler also includes and institute
The controller of four-way valve, the first temperature sensor and second temperature sensor electrical connection is stated, the controller is used for described
When difference between first temperature sensor and the temperature of second temperature sensor detection is less than the first predetermined threshold value, institute is controlled
Four-way Vavle switching is stated, so that the Teat pump boiler enters defrost pattern.
Preferably, the heat exchanging pipe is arranged in the thermal siphon.
Preferably, the thermal siphon is fixed on the shell inner surface of the indoor set.
Preferably, the 3rd temperature detection dress electrically connected with the controller is provided with the middle part of the outdoor heat exchanger
Put, the controller is additionally operable to control the Teat pump boiler to obtain the 3rd temperature-detecting device inspection after entering defrost pattern
The 3rd temperature value measured, and when the 3rd temperature value is more than the second predetermined threshold value, the four-way Vavle switching is controlled, with
The Teat pump boiler is set to enter normal hot-water mode.
Preferably, the Teat pump boiler also includes between connection and the gas returning port of the four-way valve and the compressor
Heater.
Preferably, the heater is to be close to the heat accumulation box that the outer surface of the compressor is set, in the heat accumulation box
Filled with phase-change heat-storage material.
Preferably, the phase-change heat-storage material is mixture of the paraffin with vulcanizing expanded graphite, the paraffin and the sulphur
The volume ratio for changing expanded graphite is 20:1.
In addition, to achieve the above object, the present invention also proposes a kind of control method of Teat pump boiler, the heat-pump hot-water
The control method of device is above-described Teat pump boiler, and the control method of the Teat pump boiler includes：
Controller is in real time or the temperature sensor of timing acquisition first detects obtained the first temperature value and second temperature passes
The second temperature value that sensor detects；
When difference between first temperature value and the second temperature value is less than the first predetermined threshold value, the control
Device processed controls the four-way Vavle switching, so that the Teat pump boiler enters defrost pattern.
Preferably, three-temperature sensor is provided with the middle part of the outdoor heat exchanger, the controller controls the four-way
After the step of Vavle switching, the control method of the Teat pump boiler also includes step：
The controller is in real time or three-temperature sensor described in timing acquisition detects obtained the 3rd temperature value；
When the 3rd temperature value is more than the second predetermined threshold value, the controller controls the four-way Vavle switching, so that
The Teat pump boiler enters hot-water mode.
Preferably, the controller is in real time or three-temperature sensor described in timing acquisition detects obtained the 3rd temperature value
The step of after, the control method of the Teat pump boiler also includes step：
The 3rd temperature value detected within a preset time interval is respectively less than or during equal to the second predetermined threshold value, output
Fault cues information.
Teat pump boiler proposed by the present invention and its control method, the thermal siphon detected in heat-pump hot-water air conditioner indoor machine enter
The mouth of a river and the temperature of delivery port, when the temperature difference between water inlet and delivery port is smaller, illustrate the heating effect of water heater
Rate is relatively low, now may outdoor heat exchanger frosting, then four-way Vavle switching is controlled by controller so that Teat pump boiler enters removes
White pattern, due to the thermal siphon water inlet in indoor set and the temperature of delivery port it is not affected by environment only with Teat pump boiler
Heating efficiency it is relevant, therefore to Teat pump boiler defrosting control it is more accurate.
Brief description of the drawings
Fig. 1 is the system structure diagram of the embodiment of Teat pump boiler one of the present invention；
Fig. 2 is the schematic flow sheet of the control method first embodiment of Teat pump boiler of the present invention；
Fig. 3 is the schematic flow sheet of the control method second embodiment of Teat pump boiler of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
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.
The present invention provides a kind of Teat pump boiler.
Reference picture 1, Fig. 1 are the system structure diagram of the embodiment of Teat pump boiler one of the present invention.
The present embodiment proposes a kind of Teat pump boiler, and the Teat pump boiler includes compressor 10, outdoor heat exchanger 20, four
Port valve 30 and indoor set 40；Heat exchanging pipe 50 between the outdoor heat exchanger 20 and the four-way valve 30 is arranged in described
To heat the cold water in the indoor set 40 in indoor set 40, the indoor set 40 includes thermal siphon 41, is arranged at the room
The cooling water inlet 42 of the lower housing portion of interior machine 40 and be arranged at the indoor set 40 housing upper hot water outlet 43；It is described
The water inlet of thermal siphon 41 is arranged at the bottom of the indoor set 40, and delivery port is arranged at the top of the indoor set 40, described
The water inlet of thermal siphon 41 is provided with the first temperature sensor 44, and the delivery port of the thermal siphon 41 is provided with second temperature
Sensor 45；The Teat pump boiler also includes sensing with the four-way valve 30, the first temperature sensor 44 and second temperature
The controller (not shown) that device 45 electrically connects, the controller (not shown) are used in first temperature sensor
Difference between 44 and the temperature that detects of second temperature sensor 45 controls the four-way valve 30 when being less than the first predetermined threshold value
Switching, so that the Teat pump boiler enters defrost pattern.
Pattern switching can be carried out between normal hot-water mode and defrost pattern in Teat pump boiler, in Teat pump boiler
During in normal hot-water mode, the end 32 of first end 31 and second of four-way valve 30 turns on, and the refrigerant of HTHP is through four-way valve 30
Flowing into indoor set 40 in the heat exchanging pipe 50 worn, the cold water of indoor set 40 is heated, density reduces after water temperature rise,
It is gradually increasing, the cold water flowed into by the bottom cooling water inlet 42 of indoor set 40 constantly flows up in the presence of thermal siphon 41,
Realize circulating for the reclaimed water of indoor set 40；HTHP refrigerant in heat exchanging pipe 50 is changed into the liquid of HTHP after heat exchange
State refrigerant, the liquid refrigerants of HTHP form the liquid refrigerants of low-temp low-pressure, low-temp low-pressure after the throttling of electric expansion valve 60
Liquid refrigerants enter outdoor heat exchanger 20 and absorb amount of heat the gaseous coolant of low-temp low-pressure is formed after temperature to raise, low temperature
Low-pressure gaseous refrigerant is flowed into the gas returning port of compressor 10 through the 3rd end 33 of four-way valve 30 and the 4th end 34.
In normal hot-water mode's running, when the frosting of outdoor heat exchanger 20 is serious, refrigerant is in outdoor heat exchanger
The heat of environment is absorbed in 20 to be reduced so that the heating efficiency under same volume running frequency of compressor 10 reduces, and causes
Temperature difference between the entrance and exit of thermal siphon 41 reduces, i.e. the first TEMP in the water inlet positioned at thermal siphon 41
What the second temperature sensor 45 of the first temperature value that the detection of device 44 obtains and the delivery port positioned at thermal siphon 41 detected
When temperature difference between second temperature value is less than the first predetermined threshold value, illustrate that the frosting of outdoor heat exchanger 20 is serious, now need into
Enter defrost pattern, i.e. controller (not shown) control four-way valve 30 switches the end of first end 31 and the 3rd so that four-way valve 30
33 connections, when Teat pump boiler runs on defrosting mode, refrigerant flow direction is as follows：
First end 31 and threeth end 33 of the refrigerant of HTHP through four-way valve 30, which is flowed into outdoor heat exchanger 20, to be changed
Heat is to carry out the liquid refrigerants that defrosting forms HTHP to outdoor heat exchanger 20, and the liquid refrigerants of HTHP is through electronic expansion
The liquid refrigerants of low-temp low-pressure is formed after the throttling action of valve 60, the liquid refrigerants of low-temp low-pressure is after indoor set 40 is exchanged heat
The gaseous coolant of low-temp low-pressure is formed, second end 32 and fourth end 34 of the gaseous coolant through four-way valve 30 of low-temp low-pressure flow into pressure
In the gas returning port of contracting machine 10.
In the present embodiment, the first temperature sensor 44 and second temperature sensor 45 can be set and multiple also can only set
One, the first temperature sensor 44 for it is multiple when, multiple first temperature sensors 44 can be detected obtained temperature value as
First temperature value, second temperature sensor 45 is similarly.
Further, to make the hot water heating in indoor set 40 more uniform, the heat exchanging pipe 50 is arranged in the heat
In siphon pipe 41., then will heat exchange because the cold water of the bottom of indoor set 40 is constantly drawn to the top of indoor set 40 by thermal siphon 41
Pipeline 50, which is arranged in thermal siphon 41, to be heated by the cold water that heat exchanging pipe 50 constantly sucks to thermal siphon 41, made
Heating that must be to hot water is more uniform.
It is understood that because the hot water density of the middle and lower part of indoor set 40 heating is relatively low constantly to the overhead stream of indoor set 40
It is dynamic, while the cold water of the bottom of indoor set 40 is constantly drawn to the top of indoor set 40 and can caused in indoor set 40 by thermal siphon 41
Water flows, and when the water in machine 40 flows indoors thermal siphon 41 may be driven to move, then need to carry out thermal siphon 41
Fixed, the fixation to thermal siphon 41 can be accomplished in several ways, and such as set fixed mount, can be also fixed on thermal siphon 41
The casing inner wall of indoor set 40 is the shell inner surface that the thermal siphon 41 is fixed on the indoor set 40, can be by by hot rainbow
The shell inner surface that suction pipe 41 fits in is realized.The shell inner surface that thermal siphon 41 fits in is set and may be such that to indoor set
The heating of cold water is more uniform in 40.
The Teat pump boiler that the present embodiment proposes, the water inlet of thermal siphon 41 in detection heat-pump hot-water air conditioner indoor machine 40 with
And the temperature of delivery port, when the temperature difference between water inlet and delivery port is smaller, illustrate that the heating efficiency of water heater is relatively low,
The now possible frosting of outdoor heat exchanger 20, then control four-way valve 30 to switch so that heat-pump hot-water by controller (not shown)
Device enters defrosting mode, because the water inlet of thermal siphon 41 in indoor set 40 and the temperature of delivery port be not affected by environment only
It is relevant with the heating efficiency of Teat pump boiler, therefore the defrosting control to Teat pump boiler is more accurate.
Alternatively, to improve the accuracy to defrosting heat pump water heater control, the time that can control defrosting to complete, to defrosting
The control of deadline can be realized by prefixed time interval runs prefixed time interval in Teat pump boiler with defrosting mode
Afterwards, the operational mode of Teat pump boiler is switched to normal hot-water mode by controller (not shown) by defrosting mode, also may be used
Realize that the middle part of that is, described outdoor heat exchanger 20 is provided with and the controller by the middle portion temperature for detecting outdoor heat exchanger 20
3rd temperature-detecting device of (not shown) electrical connection, the controller (not shown) are additionally operable to control the heat pump
Water heater obtains the 3rd temperature value that the 3rd temperature-detecting device detects to obtain after entering defrost pattern, and the described 3rd
When temperature value is more than the second predetermined threshold value, the four-way valve 30 is controlled to switch, so that the Teat pump boiler enters normal hot water
Pattern.
During the defrost of outdoor heat exchanger 20, when the temperature of outdoor heat exchanger 20 gradually rises, when defrost is completed
Because the temperature at the middle part of effect outdoor heat exchanger 20 of the refrigerant of HTHP is likely larger than the second predetermined threshold value, i.e. the 3rd temperature
When the 3rd temperature value that detection means detects to obtain is more than the second predetermined threshold value, controller (not shown) controls the four-way
Valve 30 switches, so that the Teat pump boiler enters normal hot-water mode.
Alternatively, to improve the defrost efficiency of Teat pump boiler, can be realized by improving the suction temperature of compressor 10, i.e.,
Heater can be set between the gas returning port of four-way valve 30 and compressor 10, then the Teat pump boiler also includes connection and institute
State the heater between the gas returning port of four-way valve 30 and the compressor 10.The heater is connected to the 4th of four-way valve 30
Between end 34 and the gas returning port of compressor 10.
The type of the heater can select such as electric heater unit and infrared heating device as needed by designer
Deng, for save Teat pump boiler energy consumption described in heater be close to the compressor 10 outer surface set heat accumulation box,
Phase-change heat-storage material is filled with the heat accumulation box.Heat accumulation box can absorb the caused heat in the process of running of compressor 10, with
The return-air of compressor 10 is heated, the return-air of compressor 10 is heated without expending other energy, saved very much.The storage
The phase-change heat-storage material filled in hot box can be mixture of the paraffin with vulcanizing expanded graphite, paraffin and the body for vulcanizing expanded graphite
Product ratio can be 20:1.
The present invention also proposes a kind of control method of Teat pump boiler.
Reference picture 2, Fig. 2 are the schematic flow sheet of the control method first embodiment of Teat pump boiler of the present invention.
The present embodiment proposes a kind of control method of heat-pump hot-water, and the Teat pump boiler is the heat pump described in above example
Water heater, the control method of the Teat pump boiler include：
Step S10, controller is in real time or the temperature sensor of timing acquisition first detects obtained the first temperature value and the
The second temperature value that two temperature sensors detect；
As shown in figure 1, the first temperature sensor 44 is arranged at the water inlet of thermal siphon 41, second temperature sensor 45 is set
Be placed in the delivery port of thermal siphon 41, by detect the first temperature value and second temperature can obtain thermal siphon 41 intake and
The temperature difference of water outlet, the heating efficiency of heat pump is can determine that by the temperature difference being calculated.
Step S20, the difference between first temperature value and the second temperature value are less than the first predetermined threshold value
When, the controller controls the four-way Vavle switching, so that the Teat pump boiler enters defrost pattern.
It is understood that controller control Teat pump boiler enter defrost pattern carry out defrost after, it is necessary to defrost
Judged at the time of completion, to control Teat pump boiler to enter normal hot-water mode, ensure the normal operation of Teat pump boiler.
The Rule of judgment completed to Teat pump boiler defrost can be realized i.e. in heat by user's sets itself, such as by prefixed time interval
After pump water heater runs prefixed time interval with defrosting mode, controller is cut the operational mode of Teat pump boiler by defrosting mode
Normal hot-water mode is changed to, can also be realized by detecting the middle portion temperature of outdoor heat exchanger, in the middle portion temperature of outdoor heat exchanger
When reaching setting value, it is believed that defrost is completed.
It is understood that be further to improve the accuracy that defrost judges, can be in first temperature value and described
When difference between second temperature value is less than the first predetermined threshold value, the further middle portion temperature for obtaining outdoor heat exchanger, i.e., the 3rd
The 3rd temperature value that temperature sensor detects, when the 3rd temperature value is less than three predetermined threshold values, controller control described four
Port valve switches, so that the Teat pump boiler enters defrost pattern.
As shown in figure 1, to improve defrost efficiency, it can also set and add between the four-way valve 30 and gas returning port of Teat pump boiler
Thermal improves the suction temperature of compressor 10.
The control method for the Teat pump boiler that the present embodiment proposes, the thermal siphon detected in heat-pump hot-water air conditioner indoor machine enter
The mouth of a river and the temperature of delivery port, when the temperature difference between water inlet and delivery port is smaller, illustrate the heating effect of water heater
Rate is relatively low, now may outdoor heat exchanger frosting, then four-way Vavle switching is controlled by controller so that Teat pump boiler enters removes
White pattern, due to the thermal siphon water inlet in indoor set and the temperature of delivery port it is not affected by environment only with Teat pump boiler
Heating efficiency it is relevant, therefore to Teat pump boiler defrosting control it is more accurate.
Reference picture 3, the control method second embodiment of Teat pump boiler of the present invention is proposed based on first embodiment, in this reality
Apply in example, after the step S20, including step：
Step S30, the controller is in real time or three-temperature sensor described in timing acquisition detects obtained the 3rd temperature
Value；
Step S40, when the 3rd temperature value is more than the second predetermined threshold value, the controller controls the four-way valve to cut
Change, so that the Teat pump boiler enters hot-water mode.
During outdoor heat exchanger defrost, when the temperature of outdoor heat exchanger gradually rises, when defrost is completed due to
Temperature in the middle part of the effect outdoor heat exchanger of the refrigerant of HTHP is likely larger than the second predetermined threshold value, i.e. the 3rd temperature detection dress
When putting obtained the 3rd temperature value of detection and being more than the second predetermined threshold value, the controller control four-way Vavle switching, so that the heat
Pump water heater enters normal hot-water mode.
It is understood that heating efficiency is relatively low may be not only outdoor heat exchanger frosting caused by, it may be possible to manage
Road leaks or other reasons, then Teat pump boiler according to defrost pattern after one section of duration is run, the temperature of outdoor heat exchanger
It may still reach to less than the second preset temperature, now then need to carry out other reason detections such as the detection or output of coolant leakage
Warning message is detected by maintenance personal, i.e. also includes step after step S30：Described detected within a preset time interval
Three temperature values are respectively less than or during equal to the second predetermined threshold values, export fault cues information.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to contain the non-row
His property includes, so that process, method, article or device including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Other identical element also be present in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone, computer, cloud
Hold server, air conditioner, or network equipment etc.) perform method described in each embodiment of the present invention.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of Teat pump boiler, the Teat pump boiler includes compressor, outdoor heat exchanger, four-way valve and indoor set；Institute
The heat exchanging pipe between outdoor heat exchanger and the four-way valve is stated to be arranged in the indoor set to heat in the indoor set
Cold water, it is characterised in that the indoor set include thermal siphon, be arranged at the indoor set lower housing portion cooling water inlet
And it is arranged at the hot water outlet of the housing upper of the indoor set；The thermal siphon water inlet is arranged at the indoor set
Bottom, delivery port are arranged at the top of the indoor set, and the water inlet of the thermal siphon is provided with the first temperature sensor, institute
The delivery port for stating thermal siphon is provided with second temperature sensor；The Teat pump boiler also includes and the four-way valve, first
Temperature sensor and the controller of second temperature sensor electrical connection, the controller are used in first temperature sensor
And the difference between the temperature of second temperature sensor detection controls the four-way Vavle switching when being less than the first predetermined threshold value,
So that the Teat pump boiler enters defrost pattern.
2. Teat pump boiler as claimed in claim 1, it is characterised in that the heat exchanging pipe is arranged in the thermal siphon
It is interior.
3. Teat pump boiler as claimed in claim 1, it is characterised in that the thermal siphon is fixed on the shell of the indoor set
Internal surface.
4. Teat pump boiler as claimed in claim 1, it is characterised in that be provided with the middle part of the outdoor heat exchanger with it is described
3rd temperature-detecting device of controller electrical connection, the controller are additionally operable to control the Teat pump boiler to enter defrost pattern
The 3rd temperature value that the 3rd temperature-detecting device detects to obtain is obtained afterwards, and is more than second in the 3rd temperature value and is preset
During threshold value, the four-way Vavle switching is controlled, so that the Teat pump boiler enters normal hot-water mode.
5. the Teat pump boiler as described in the claim any one of 1-4, it is characterised in that the Teat pump boiler also includes
The heater being connected between the gas returning port of the four-way valve and the compressor.
6. Teat pump boiler as claimed in claim 5, it is characterised in that the heater is be close to the compressor outer
The heat accumulation box that surface is set, the heat accumulation box is interior to be filled with phase-change heat-storage material.
7. Teat pump boiler as claimed in claim 6, it is characterised in that the phase-change heat-storage material is that paraffin expands with vulcanization
The mixture of graphite, the volume ratio of the paraffin and the vulcanization expanded graphite is 20:1.
8. a kind of control method of Teat pump boiler, it is characterised in that the Teat pump boiler is the heat pump described in claim 1
Water heater, the control method of the Teat pump boiler include：
Controller is in real time or the temperature sensor of timing acquisition first detects obtained the first temperature value and second temperature sensor
The second temperature value detected；
When difference between first temperature value and the second temperature value is less than the first predetermined threshold value, the controller
The four-way Vavle switching is controlled, so that the Teat pump boiler enters defrost pattern.
9. the control method of Teat pump boiler as claimed in claim 8, it is characterised in that set in the middle part of the outdoor heat exchanger
After having the step of three-temperature sensor, the controller controls the four-way Vavle switching, the control of the Teat pump boiler
Method also includes step：
The controller is in real time or three-temperature sensor described in timing acquisition detects obtained the 3rd temperature value；
When the 3rd temperature value is more than the second predetermined threshold value, the controller controls the four-way Vavle switching, so that described
Teat pump boiler enters hot-water mode.
10. the control method of Teat pump boiler as claimed in claim 9, it is characterised in that the controller in real time or timing
After obtaining the step of three-temperature sensor detects three obtained temperature value, the control method of the Teat pump boiler
Also include step：
The 3rd temperature value detected within a preset time interval is respectively less than or during equal to the second predetermined threshold value, exports failure
Prompt message.
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| CN108266898B (en) * | 2016-12-30 | 2020-12-22 | 青岛海尔新能源电器有限公司 | Defrosting control method and system for air energy water heater |
| EP3645950B1 (en) * | 2017-06-30 | 2024-03-06 | Aquanta Inc. | Water heater usage profiling utilizing energy meter and attachable sensors |
| CN107461874B (en) * | 2017-07-03 | 2020-10-20 | 青岛海尔空调电子有限公司 | Air conditioner defrosting control method and air conditioner |
| CN109237591A (en) * | 2018-10-15 | 2019-01-18 | 珠海格力电器股份有限公司 | Electric heater processing method and electric heater |
| CN114963291B (en) * | 2021-06-29 | 2023-11-17 | 青岛海尔新能源电器有限公司 | Heating machine control method, device, equipment and storage medium |
| CN114719399B (en) * | 2022-04-18 | 2024-05-14 | 青岛海尔空调电子有限公司 | Defrosting control method and system for air conditioner and air conditioner |
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