CN104344551B - The method of air-source water heater and pre- antifrost, the method for defrosting - Google Patents
The method of air-source water heater and pre- antifrost, the method for defrosting Download PDFInfo
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- CN104344551B CN104344551B CN201310344708.4A CN201310344708A CN104344551B CN 104344551 B CN104344551 B CN 104344551B CN 201310344708 A CN201310344708 A CN 201310344708A CN 104344551 B CN104344551 B CN 104344551B
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Abstract
The embodiment of the invention discloses a kind of air-source water heater, including housing, main controller, compressor, blower fan, preheating device, cooling-water temperature sensor, environment temperature sensor and coil temperature sensor are provided with the housing；The housing exterior walls are provided with the display operator with main controller communication connection；The main controller electrically connects with the compressor, blower fan, preheating device, cooling-water temperature sensor, environment temperature sensor and coil temperature sensor respectively.The embodiment of the invention also discloses a kind of method of the pre- antifrost of air-source water heater and the method for defrosting, has the characteristics of energy-saving and environmental protection, safe.
Description
Technical field
The present invention relates to a kind of air-source water heater, more particularly to the side of a kind of air-source water heater and pre- antifrost
Method, the method for defrosting.
Background technology
Air-source water heater is the heating principle using air-conditioning, and the heat evaporated by medium in absorption air produces heat
Can, there is the advantages of solar water heater energy-saving and environmental protection, safe, solve solar water heater again and adopt heat and peace by sunlight
Fill the problem of inconvenient.Because air-source water heater is heated by medium and air exchange heat, it is not necessary to electrical heating elements
Contacted with water, without the danger of electric heater electric leakage, gas heater poisoning and the hidden danger exploded are also eliminated, more without fuel oil
Air pollution caused by water heater discharge waste gas.Just because of there is the advantages of so many, so air-source water heater is by users
Received.Because air-source water heater is constantly to absorb heat from air evaporation by medium (refrigerant 134a R22 R410A etc.)
The thermodynamic cycle process of amount → compressor compresses → condensation (release heat is into water) → throttling → re-evaporation.When air energy thermal water
For device during heating, air themperature is relatively low, when water temperature is also low, evaporating heat exchanger surface will one layer of frost of knot, so as to influence
Refrigeration system heat transfer effect.Evaporating heat exchanger all detects in defrosting with TEMP in present air-source water heater manufacturer
When coil temperature is very low, compressor is driven, stops blower fan, while is commutated with four-way reversing valve and changes refrigerant flow direction, original evaporation is inhaled
Hot-cast socket is into condensation heat release, so as to realize that evaporating heat exchanger defrosts.The method has a problem that, when evaporation endothermic be converted into it is cold
During solidifying heat release, same former condensation heat release is also converted into evaporation endothermic, the heat energy meeting in water tank during air-source water heater defrosting
Siphoned away by refrigeration system, water temperature can decline.And at the end of defrosting, four-way changes valve and recovers original refrigerant flow direction, heat exchange manifold
In cold and hot refrigerant neutralize, a part of heat can be lost again.Whole defrosting process heat loss is very big, is unfavorable for saving.
The content of the invention
The technical problems to be solved by the invention are, there is provided a kind of air-source water heater, have energy-saving and environmental protection, safety
The characteristics of.
In order to solve the above-mentioned technical problem, it is described the embodiments of the invention provide a kind of air-source water heater, including housing
Main controller, compressor, blower fan, preheating device, cooling-water temperature sensor, environment temperature sensor and coil temperature sensing are provided with housing
Device；The housing exterior walls are provided with the display operator with main controller communication connection；The main controller respectively with the compression
Machine, blower fan, preheating device, cooling-water temperature sensor, environment temperature sensor and coil temperature sensor electrical connection.
Improvement for above-mentioned technical proposal, the cooling-water temperature sensor, environment temperature sensor and coil temperature sensor
It is R25 DEG C=5k Ω, B=3470 models.
Correspondingly, the method that the embodiment of the present invention additionally provides a kind of pre- antifrost of air-source water heater, there is pre- air defense
Gas energy water heater is the frosting during heating the problem of, so as to also ensure that the heating effect of air-source water heater.
In order to solve the above-mentioned technical problem, the embodiments of the invention provide a kind of side of the pre- antifrost of air-source water heater
Method, comprise the following steps：According to the enthalpy difference experiment of air-source water heater, established standardses water temperature T w1, standard ambient temperature Ta1, and
The standard water temperature Tw1 and standard ambient temperature Ta1 are stored in the main controller；Run air-source water heater, the water
Temperature sensor is detected in real time to the water temperature T w in air-source water heater, and the environment temperature sensor is real to environment temperature Ta
When detect；Actually detected water temperature T w and actually detected environment temperature Ta are entered with standard water temperature Tw1, environment temperature Ta1 respectively
Row compares, and the main controller determines whether to open preheating device or compressor, blower fan according to comparative result, to reach pre- anti-caking
The purpose of frost.
Improvement for above-mentioned technical proposal, the standard water temperature Tw1 are：15 DEG C of 30 DEG C of ＜ Tw1 ＜；The standard environment
Temperature Ta1 is：5 DEG C of 7 DEG C of ＜ Ta1 ＜.
Further improvement for above-mentioned technical proposal, by the actually detected water temperature T w and actually detected environment temperature
Ta is specially respectively compared with standard water temperature Tw1, environment temperature Ta1：If Tw ＜ Tw1, and Ta ＜ Ta1, then described
Main controller opens preheating device heating；If Tw ＞ Tw1+1 DEG C, the main controller stops preheating device and heated, described in unlatching
Compressor and blower fan work.
Correspondingly, the embodiment of the present invention additionally provides a kind of method of air-source water heater defrosting, can be to air energy thermal
Hydrophone carries out defrosting operation, and heat, in order to solve the above-mentioned technical problem, the embodiment of the present invention will not be also lost during defrosting
A kind of method of air-source water heater defrosting is provided, is comprised the following steps：According to the enthalpy difference experiment of air-source water heater, setting
Coil temperature Tp2 after coil temperature Tp1 and standard defrosting when standard ambient temperature Ta2, standard frosting, and by the standard ring
Coil temperature Tp2 is stored in the main controller after coil temperature Tp1 and standard defrost when border Ta2, standard frosting；Operation is empty
Gas energy water heater, the environment temperature sensor detect in real time to environment temperature Ta, and the coil temperature sensor is to coil pipe temperature
Degree Tp is detected in real time；By actually detected environment temperature Ta compared with standard ambient temperature Ta2, by actually detected coil temperature
Tp respectively when standard frosting after coil temperature Tp1 and standard defrosting compared with coil temperature Tp2, the main controller according to
Comparative result determines to open compressor and blower fan, to reach the purpose of defrosting.
Improvement for above-mentioned technical proposal, the standard ambient temperature Ta2 are：5 DEG C of 7 DEG C of ＜ Ta2 ＜；The standard knots
Coil temperature Tp1 is when white：3 DEG C of 4 DEG C of ＜ Tp1 ＜；Tp2=0 DEG C of coil temperature after the standard defrosting.
Further improvement for above-mentioned technical proposal, by actually detected environment temperature Ta and actually detected environment coil pipe
Temperature Tp is respectively when standard ambient temperature Ta2, frosting after coil temperature Tp1 and defrosting compared with coil temperature Tp2, tool
Body is：If Ta ＜ Ta2, Tp ＜ Tp1, and after compressor continuous firing 3min, then the main controller stop the compressor,
Open blower fan work；If Tp ＞ Tp2, and the time ＞ 3min that the compressor is stopped, then the main controller is opened
The compressor and blower fan work.
Implement the embodiment of the present invention, have the advantages that：(1) due to the environment temperature of air-source water heater installation
Degree sensor, cooling-water temperature sensor and coil temperature sensor are directly connected with main controller, and main controller detects in low environment temperature at any time
When degree and low water temperature, the few frosting of air-source water heater can be prevented, and reduce knot, defrosting cycle-index；(2) due to the air energy
It is not to change refrigerant flow direction using four-way reversing valve when water heater defrosts, so refrigeration system thermal loss is small during defrosting, water tank
Water temperature will not also decline, and energy-conservation is again comfortable.
(3) air-source water heater eliminates four reversal valves, saves cost, also simplifies refrigeration system pipeline, more square
It is easy to produce in enormous quantities.
Brief description of the drawings
Fig. 1 is structured flowchart of the air-source water heater of the present invention in embodiment；
Fig. 2 is the workflow diagram of the pre- antifrost of air-source water heater of the present invention；
Fig. 3 is the workflow diagram of air-source water heater defrosting of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing
It is described in detail on step ground.
Embodiment 1：As shown in figure 1, air-source water heater of the present invention, including housing 1, the master in housing 1
Device 2, compressor 3, blower fan 4, preheating device 5, cooling-water temperature sensor 6, environment temperature sensor 7 and coil temperature sensor 8 are controlled, together
When in the outer wall of housing 1 be provided with the display operator 9 with the main controller 2 communication connection, the main controller 2 is used as the sky
The core component of gas energy water heater, passed respectively with the compressor 3, blower fan 4, preheating device 5, cooling-water temperature sensor 6, environment temperature
Sensor 7 and coil temperature sensor 8 electrically connect, and whether work and are controlled completely by the main controller 2, user then passes through the display
Operator 9 opens the air-source water heater, and can show work in every information, such as water temperature, time etc..Wherein, institute
State cooling-water temperature sensor 6, environment temperature sensor 7 and the use of coil temperature sensor 8 is all R25 DEG C=5k Ω, B=3470 types
Number sensor, have precision it is high, stable and reliable for performance, service life is long the characteristics of.
Air-source water heater of the present invention has the characteristics of energy-saving and environmental protection, safe, at the same can also pre- antifrost,
Specific steps can be understood with reference to Fig. 2 workflow diagram.
1) enthalpy difference experiment is carried out firstly the need of to the air-source water heater, so as to w1=20 DEG C of established standardses water temperature T, mark
Ta1=6 DEG C of quasi temperature, and the standard water temperature Tw1 and standard ambient temperature Ta1 are stored in the main controller 2；2)
The air-source water heater is opened, allows its normal work, then the cooling-water temperature sensor 6 is real to the water temperature T w in air-source water heater
When detect, the environment temperature sensor 7 detects in real time to environment temperature Ta；3) by the Tw compared with Tw1, and will
The Ta is compared with Ta1, if comparative result is：20 DEG C of Tw ＜, and 6 DEG C of Ta ＜, then the main controller 2 then start institute
Preheating device 5 is stated to heat；If 21 DEG C of Tw ＞, the main controller 2 stops the preheating device 5 and heated, and opens the compression
Machine 3 and blower fan 4 work.
The method is relatively low in temperature using air and when water temperature is relatively low, then in the air-source water heater easily
The principle of frosting, so as to effectively control environment temperature Ta and water temperature T w, it is less than 20 DEG C in water temperature, and environment temperature is also small
In the case of 6 DEG C, then open preheating device 5 and carry out heating operation, so as to lift environment temperature and water temperature, avoid the production of frost
It is raw.When the preheating device 5 continue heating process in, as long as water temperature more than 21 DEG C, then the main controller 2 closes down the pre- hot charging
5 are put, the compressor 3 and blower fan 4 is opened and works, can effectively avoid the frosting in air-source water heater heating operations from asking
Topic, so as to also ensure that the effect of its heat exchange.
Although the method for the above-described pre- antifrost of air-source water heater can effectively avoid frosting, but in reality
During the much time using of border, still can the frosting in the air-source water heater, thus the present invention a kind of air is also provided
The method of energy water heater defrosting, specific steps can open understanding with reference to Fig. 3 workflow diagram：1) firstly the need of to air energy thermal
The carry out enthalpy difference experiment of hydrophone, when Ta2=6 DEG C of established standardses environment temperature, standard frosting Tp1=3.5 DEG C of coil temperature and
Tp2=0 DEG C of coil temperature after standard defrosting, and by coil temperature Tp1 when the standard water temperature Ta2, standard frosting and standard
Coil temperature Tp2 is stored in the main controller 2 after defrosting；
2) air-source water heater normal operation is opened, the environment temperature sensor 7 detects in real time to environment temperature Ta, institute
Coil temperature sensor 8 is stated to detect coil temperature Tp in real time；3) it is real by actually detected environment temperature Ta compared with Ta2
Coil temperature Tp is detected compared with Tp1 and Tp2 in border, if 3.5 DEG C of 6 DEG C of Ta ＜, Tp ＜, and compressor continuous firing
After 3min, then the main controller 2 stops the compressor 3, unlatching blower fan 4 works；If 0 DEG C of Tp ＞, and the compressor 3
The time ＞ 3min being stopped, then the main controller 2 open the compressor 3 and blower fan 4 and work.
Defrost method described above is then on the basis of prevention defrosting before this, regardless of water temperature T w, but combines coil pipe temperature
Degree Tp is compressed the operation that machine 3 and blower fan 4 are opened.Avoid the hot loss of energy in water tank during defrosting.
Embodiment 2：The present embodiment only difference is that with embodiment 1：The standard water temperature Tw1 of pre- antifrost is set as 25
DEG C, standard ambient temperature Ta1 is set as 6.5 DEG C；The standard ambient temperature Ta2 of defrosting is set as 6.5 DEG C, coil pipe during standard frosting
Temperature Tp1 is set as 3.8 DEG C.
Coil temperature Tp1 temperature is all when the standard water temperature Tw1, standard ambient temperature Ta1, Ta2 and standard frosting
More relatively high than embodiment 1, its effect is substantially identical.
Embodiment 3：The present embodiment only difference is that with embodiment 1：The standard water temperature Tw1 of pre- antifrost is set as 18
DEG C, standard ambient temperature Ta1 is set as 5.5 DEG C；The standard ambient temperature Ta2 of defrosting is set as 5.5 DEG C, coil pipe during standard frosting
Temperature Tp1 is set as 3.2 DEG C.
Coil temperature Tp1 temperature is all when the standard water temperature Tw1, standard ambient temperature Ta1, Ta2 and standard frosting
Relatively lower than embodiment 1, its effect is substantially identical.
The above disclosed power for being only a kind of preferred embodiment of the present invention, the present invention can not being limited with this certainly
Sharp scope, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (6)
1. a kind of air-source water heater, including housing (1), it is characterised in that：Main controller (2), compression are provided with the housing (1)
Machine (3), blower fan (4), preheating device (5), cooling-water temperature sensor (6), environment temperature sensor (7) and coil temperature sensor (8)；
Housing (1) outer wall is provided with the display operator (9) with the main controller (2) communication connection；The main controller (2) respectively with
The compressor (3), blower fan (4), preheating device (5), cooling-water temperature sensor (6), environment temperature sensor (7) and coil temperature
Sensor (8) electrically connects；The method of the pre- antifrost of air-source water heater, including it is as follows：According to the enthalpy of air-source water heater
Difference experiment, established standardses water temperature T w1, standard ambient temperature Ta1, and by the standard water temperature Tw1 and standard ambient temperature Ta1 all
It is stored in the main controller (2)；Air-source water heater is run, the cooling-water temperature sensor (6) is to the water temperature in air-source water heater
Tw is detected in real time, and the environment temperature sensor (7) is detected in real time to environment temperature Ta；By actually detected water temperature T w and
Actually detected environment temperature Ta is respectively compared with standard water temperature Tw1, environment temperature Ta1, if Tw ＜ Tw1, and Ta ＜
Ta1, then main controller (2) unlatching preheating device (5) heating；When preheating device (5) continue heating process in, if Tw ＞
Tw1+1 DEG C, then main controller (2) stopping preheating device (5) heating, opens the compressor (3) and blower fan (4) work.
2. air-source water heater according to claim 1, it is characterised in that：The cooling-water temperature sensor (6), environment temperature pass
Sensor (7) and coil temperature sensor (8) are R25 DEG C=5k Ω, B=3470 models.
A kind of 3. method of the pre- antifrost of air-source water heater according to claim 1, it is characterised in that including as follows：
According to the enthalpy difference experiment of air-source water heater, established standardses water temperature T w1, standard ambient temperature Ta1, and by the standard water temperature
Tw1 and standard ambient temperature Ta1 is stored in the main controller (2)；Run air-source water heater, the cooling-water temperature sensor (6)
Water temperature T w in air-source water heater is detected in real time, the environment temperature sensor (7) is examined in real time to environment temperature Ta
Survey；Actually detected water temperature T w and actually detected environment temperature Ta are compared with standard water temperature Tw1, environment temperature Ta1 respectively
Compared with, if Tw ＜ Tw1, and Ta ＜ Ta1, then main controller (2) unlatching preheating device (5) heating；When preheating device (5) after
In continuous heating process, if Tw ＞ Tw1+1 DEG C, the main controller (2) stops preheating device (5) heating, opens the compression
Machine (3) and blower fan (4) work.
4. the method for the pre- antifrost of air-source water heater according to claim 3, it is characterised in that：The standard water temperature
Tw1 is：15 DEG C of 30 DEG C of ＜ Tw1 ＜；The standard ambient temperature Ta1 is：5 DEG C of 7 DEG C of ＜ Ta1 ＜.
A kind of 5. method of air-source water heater defrosting according to claim 1, it is characterised in that comprise the following steps：
According to the enthalpy difference experiment of air-source water heater, coil temperature Tp1 and standard when established standardses environment temperature Ta2, standard frosting
Coil temperature Tp2 after defrosting, and by after coil temperature Tp1 when the standard ambient temperature Ta2, standard frosting and standard defrosting
Coil temperature Tp2 is stored in the main controller (2)；Air-source water heater is run, the environment temperature sensor (7) is to environment
Temperature Ta is detected in real time, and the coil temperature sensor (8) is detected in real time to coil temperature Tp；By actually detected environment temperature Ta
Compared with standard ambient temperature Ta2, by actually detected coil temperature Tp respectively with coil temperature Tp1 during standard frosting and
Coil temperature Tp2 is compared after standard defrosting, if Ta ＜ Ta2, Tp ＜ Tp1, and the compressor continuous firing 3 minutes
Afterwards, then the main controller (2) stops the compressor (3), opens blower fan (4) work；If Tp ＞ Tp2, and the compression
The time that machine (3) is stopped is more than 3min, then the main controller (2) opens the compressor (3) and blower fan (4) work.
6. the method for air-source water heater defrosting according to claim 5, it is characterised in that：The standard ambient temperature
Ta2 is：5 DEG C of 7 DEG C of ＜ Ta2 ＜；Coil temperature Tp1 is during the standard frosting：3 DEG C of 4 DEG C of ＜ Tp1 ＜；After the standard defrosting
Tp2=0 DEG C of coil temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310344708.4A CN104344551B (en) | 2013-08-08 | 2013-08-08 | The method of air-source water heater and pre- antifrost, the method for defrosting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310344708.4A CN104344551B (en) | 2013-08-08 | 2013-08-08 | The method of air-source water heater and pre- antifrost, the method for defrosting |
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| CN104344551A CN104344551A (en) | 2015-02-11 |
| CN104344551B true CN104344551B (en) | 2017-11-21 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106016871B (en) * | 2016-05-24 | 2018-10-02 | 昆明理工大学 | A kind of method and its device inhibiting air source hot pump water heater cold operation frosting |
| CN108286806B (en) * | 2017-01-09 | 2021-01-08 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and control method thereof |
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| CN2703228Y (en) * | 2004-05-17 | 2005-06-01 | 扬州市华扬新能源有限公司 | Air source hot pump water heater |
| CN1818498A (en) * | 2006-02-27 | 2006-08-16 | 黄道德 | Hot-pump water heater with air source |
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| CN2932208Y (en) * | 2005-08-26 | 2007-08-08 | 广东万和集团有限公司 | Heat pump water heater having auxiliary heating device |
| CN202993552U (en) * | 2012-11-08 | 2013-06-12 | 广东美的电器股份有限公司 | Heat-pump water heater, water tank and water tank liner |
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|---|---|---|---|---|
| JPH05272812A (en) * | 1992-03-26 | 1993-10-22 | Matsushita Electric Ind Co Ltd | Heat pump type hot water feeder |
| CN2703228Y (en) * | 2004-05-17 | 2005-06-01 | 扬州市华扬新能源有限公司 | Air source hot pump water heater |
| CN2932208Y (en) * | 2005-08-26 | 2007-08-08 | 广东万和集团有限公司 | Heat pump water heater having auxiliary heating device |
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| CN104344551A (en) | 2015-02-11 |
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Effective date of registration: 20230607 Address after: 511000 No. B23, Huachuang Animation Industrial Park, Jinshan Village, Shiji Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Wanjulong Technology Co.,Ltd. Address before: 511400 Huachuang Animation Industry Park B23, Jinshan Village, Shiji Town, Panyu District, Guangzhou City, Guangdong Province Patentee before: GZ AXEN HEATING TECHNOLOGIES Ltd. |
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