CN103123192A - External auxiliary heating frosting-proof capillary throttling integrated device - Google Patents
External auxiliary heating frosting-proof capillary throttling integrated device Download PDFInfo
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- CN103123192A CN103123192A CN2013100888865A CN201310088886A CN103123192A CN 103123192 A CN103123192 A CN 103123192A CN 2013100888865 A CN2013100888865 A CN 2013100888865A CN 201310088886 A CN201310088886 A CN 201310088886A CN 103123192 A CN103123192 A CN 103123192A
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- 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
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- 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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
Provided is an external auxiliary heating frosting-proof capillary throttling integrated device. The external auxiliary heating frosting-proof integrated device is composed of a capillary throttling device and an external auxiliary heating component, so that product structure is optimized. Modification area based on an original device is small and installation and changing are easy. Only the rear half portions, namely, the portions close to the outdoor evaporation side, of thermal coated throttling capillary tubes need to be heated, so that a refrigerant energy is improved, evaporation temperature is increased and the energy efficiency ratio of products is improved. The external auxiliary heating frosting-proof capillary throttling integrated device is suitable for all the other heat pump forms such as air source heat pumps, soil source heat pumps, water source heat pumps and heat source towers, so that the heat pumps can run more efficiently in adverse low-temperature high-humidity winter and the problem that the heat pumps are easy to frost when running in the environment is solved.
Description
Technical field
The present invention relates to the anti-defrosting capillary throttling integrated apparatus of a kind of outer auxiliary heat.
Background technology
In Middle And Lower Reaches of Changjiang River belongs to the Xia Redong cryogenic region in thermal technology's Study on Climate Division, and mean winter temperature is low, and relative humidity is large.And winter under the impact that is subjected to northern strong cold air, frost or the freezing weather of certain hour can appear.The environmental condition of high humility is these regional characteristics, is also to cause the heat pump frosting seriously and the poor main cause of service behaviour.Very easily frosting of evaporimeter when air source heat pump is worked under this environment, the system works performance degradation is serious, passes in time, and the frost layer that grows into causes heat transfer process to worsen, and makes the evaporating temperature of unit reduce.
Traditional Defrost method has three classes, and a kind of is contrary Defrost mode, and principle is the fan parking with indoor set, and four-way change-over valve is switched, and air-conditioning system is moved according to refrigeration modes.At this moment the condenser that is converted under cooling condition of outdoor heat exchanger is used.There is following shortcoming in this Defrost mode:
1, due to the fan parking of indoor set, indoor heat exchanger recepts the caloric seldom from indoor environment, and the defrosting relative deficiency makes defrosting time long;
2, due to the indoor fan stall, indoor set indoor heat exchanger when defrosting needs draw heat from indoor environment, makes room temperature to descend, and makes indoor environment more abominable.Because defrosting time is long, the defrosting meeting on outdoor heat exchanger top drops on lower fins, below the frost layer accumulation a lot, be difficult to remove, cause ice sheet to pile up, affect heat exchanger efficiency.
3, defrosting makes unit be in unsettled duty frequently, and heating effect and heating time all can not guarantee.
The second is the hot gas bypass valve defrosting, and principle is directly to guide the HTHP exhaust of exhaust outlet of compressor into evaporimeter by hot gas bypass valve, defrosts by the heat release of HTHP cooling medium liquefaction.The shortcoming of this Defrost mode is: because on high-tension side refrigerant is to come from evaporimeter to absorb the refrigerant that vaporization obtains; when temperature lower; the defrosting longer duration will not have enough heats to make the refrigerant vaporization, make main frame not have enough refrigerants to flow and enter the protectiveness stopped status.
The third is exactly electric heater defrosting, common electric heater defrosting device is to use heating to make the defrosting thermal source, usually, arrange that according to heating the position is different, can be further divided into three types: (1) directly is placed on electric heater the surperficial end of heat exchanger; (2) electric heater and heat exchanger are made of one; (3) electrothermal tube is placed in refrigerant pipe in evaporimeter; (4) electric heater is placed in refrigerant pipe before heat exchanger or outside pipe.For front two kinds, because heating is exposed in humid air, be the not breakdown phenomenon that causes the unit electric leakage of ice sheet in order to guarantee humid air.Usually the electric current that flows through heating is also little.When needed energy one timing of defrost, electric current is less, and for the electric heater defrosting device of having given, its needed defrost time is longer.The third is built in heating in refrigerant pipe in evaporimeter, and owing to no longer being limited by safe current, defrosting speed gets a promotion.But, to compare with front two kinds of electric defrosting modes, electrothermal tube is enclosed within the heat exchange gilled tube, not only requires electrothermal tube to have better stability, has also increased the difficulty of device fabrication cost and manufacturing and maintenance simultaneously.The 4th kind is placed in heating in refrigerant pipe before heat exchanger or outside pipe, although easy for installation, easy operating, in the larger a little machine of a lot of power, capillary is very short to cold-producing medium pipe range between evaporimeter, can't implement the method at all.In addition, the simple defrosting controller that the unit interval relay of Domestic Air-condition device fabrication producer use at present consists of, its defrosting time is setting value, can not how much regulating according to frosting degree, if time relay outlet fault, electrothermal tube works long hours, and can burn out air-conditioning equipment.
Summary of the invention
Technical problem to be solved by this invention is to provide the anti-defrosting capillary throttling integrated apparatus of outer auxiliary heat that the anti-defrosting of a kind of system need not to shut down.
In order to solve the problems of the technologies described above, the anti-defrosting capillary throttling integrated apparatus of outer auxiliary heat provided by the invention is that auxiliary heat is overlying on capillary outward, and be coated with absolutely at described outer surface capillaceous (every) hot charging puts or other heat-exchanger rigs.
Described absolutely (every) hot charging be set to the heating that is coated on described outer surface capillaceous and be coated on described heating outer surface absolutely (every) thermoelectricity hotting mask (layer).
Described other heat-exchanger rigs are hot water, deep fat, hot gas or heat exchange of heat pipe.
Adopt the anti-defrosting capillary throttling integrated apparatus of outer auxiliary heat of technique scheme, utilize electricity-hot transfer principle, the electrothermal tube of certain voltage, certain electric current is wrapped in the outer surface of capillary throttle device, the form that is equivalent to the electric blanket formula wraps in outside refrigerant pipe, or adopt hot water, deep fat, hot gas or heat-pipe heat exchanger and capillary throttle device heat exchange, then add outside pipe absolutely (every) thermoelectricity hotting mask (layer) reduction energy loss.System's defrosting need not to shut down, need not to change working medium flow, need not to arrange by-pass collar, is not only applicable to all air source heat pumps, comprises that also all have the heat pump air conditioner of auxiliary hot heating working medium characteristics.
Technical scheme of the present invention:
A kind of outer auxiliary heat is prevented defrosting capillary throttling integrated apparatus, mainly by compressor, four-way change-over valve, outdoor evaporimeter be low-temperature heat exchange side, magnetic valve, separatory capillary, absolutely (every) hotting mask (layer), heating, check valve, capillary, device for drying and filtering, to heat condenser be that high temperature heat exchange side and gas-liquid separator form.
when system when low temperature and high relative humidity is easy to start the heating condition operation under the working condition of frosting, the heating energising, after compressor outlet process four-way change-over valve, the cold media gas of HTHP is high temperature heat exchange side through heating condenser, cooling by the super-dry filter, arrive the capillary-compensated integrated apparatus through check valve, should outer auxiliary heat prevent that defrosting capillary throttling arrangement was when guaranteeing coolant throttle, promote the energy of refrigerant, make it when next being the low-temperature heat exchange side through outdoor evaporimeter, when pressure reduces, the efficient heat in the absorption chamber outer air and vaporizing, through four-way change-over valve, arrive compressor by gas-liquid separator and carry out further compression pyrogenic circulation.
When winter, outdoor temperature was higher, system carried out normal heating condition operation, and heating is not worked, shut electromagnetic valve.After compressor outlet process four-way change-over valve, the cold media gas of HTHP is high temperature heat exchange side through heating condenser, cooling by the super-dry filter, be the heat absorption of low-temperature heat exchange side vaporization to outdoor evaporimeter after arriving capillary-compensated through check valve, then pass through four-way change-over valve, arrive compressor by gas-liquid separator and carry out further compression pyrogenic circulation.
When the anti-defrosting of needs, heating energising, opens solenoid valve.The refrigerant of the middle temperature high pressure that was cooled is coated with the outer auxiliary hot capillary throttling integrated apparatus of heating through outer surface, heating is coated on each separatory extracapillary, coat thereon absolutely more in addition (every) hotting mask (layer), the length of heating, absolutely (every) length of hotting mask (layer), determine its length and watt level according to defrosting concurrent heating amount, refrigerant property, wherein, heating only coats separatory latter half capillaceous.After refrigerant temperature was suitably improved, the evaporating temperature of refrigerant is corresponding being improved also, can indoor function guarantee to be in the heating operation operating mode so always, can not have influence on indoor comfort level.Can suitably improve compression ratio after refrigerant after evaporating temperature improves enters compressor, make the high efficiency work of compression function.
When moving under cooling condition summer, the work of heating no power, shut electromagnetic valve, by former cooling condition operation, namely the anti-defrosting capillary throttling integrated apparatus of outer auxiliary heat does not start, and refrigerant only carries out throttling.By former cooling condition operation.Change the four-way change-over valve direction, high temperature and high pressure steam by the compressor discharge, enter high temperature heat exchange side through cross valve, refrigerant vapour is condensed into liquid, enters the low-temperature heat exchange side through capillary, and absorb heat in the low-temperature heat exchange side, room air is cooling, and the refrigerant vapour after evaporation is sucked by compressor by gas-liquid separator after cross valve, go round and begin again like this, realize kind of refrigeration cycle.
When heat pump freezed with heating operation, principle was the same, all carried out according to contrary Carnot cycle, and just the working range difference of getting, take from high temperature heat exchange side when heating, and takes from the low-temperature heat exchange side during refrigeration.By four-way change-over valve turn to realize freezing and heat the conversion operation of different operating modes.
In addition, the anti-defrosting mode of electric heating can change flexibly, heating in figure can change hot water, deep fat, hot gas or heat pipe into, be not namely that electricity is auxiliary herein, be other auxiliary hot mode, same purpose is all by hot water, deep fat, hot gas or heat pipe and refrigerant heat exchange, and the energy of refrigerant is improved, making refrigerant enter outdoor evaporimeter is that the low-temperature heat exchange side has higher energy, and evaporating temperature is higher reaches anti-defrosting.
The way of realization of high temperature heat exchange side 11 also has multiple, can be air-cooled can be also water-cooled, so heat pump involved in the present invention can be other heat pump forms such as air source heat pump, soil source heat pump, water resource heat pump or heat source tower.
Capillary throttling arrangement and outer auxiliary thermal element form the anti-defrosting integrated apparatus of outer auxiliary heat, optimized the structure of product, change the little and easy installation change of area on the basis of existing equipment, only heating coats the part of the namely close outdoor evaporation side of separatory capillary latter half, improve the refrigerant energy, evaporating temperature increases, and has improved the Energy Efficiency Ratio of product.
The present invention provides a kind of outer auxiliary heat to prevent defrosting capillary throttling integrated technique to air source heat pump, this technology can not affect under the function that conventional air-conditioning system refrigeration in summer, winter heat, can also be under the prerequisite of winter heating operation operating mode, uninterrupted indoor heating, improve rapidly the energy of working medium before entering evaporimeter, working medium is had under higher energy situation enter evaporimeter, the generation of preventing frosting amount, and in the situation that do not change refrigerant flow and make refrigerant have higher energy to enter compressor, prevent the possibility of compressor liquid hammer.The present invention has overcome because heating is exposed in humid air, is the not breakdown problem that causes the unit electric leakage of ice sheet in order to guarantee humid air.Also overcome electrothermal tube and be enclosed within the heat exchange gilled tube, not only require electrothermal tube to have better stability, also increased the problem of the difficulty of device fabrication cost and manufacturing and maintenance simultaneously.
In sum, the present invention is the anti-defrosting of a kind of outer auxiliary heat, need not to shut down, need not change working medium flow and simple to operate, the defrosting time is short, efficient is high, power consumption is few, the outer auxiliary heat of raising system performance is prevented defrosting capillary throttling integrated apparatus.
The present invention is not limited to above-mentioned preferred forms according to white growth rhythm and refrigerant property, and the patent protection section is before the second half section of separatory capillary-compensated arrives the low-temperature heat exchange side.Auxiliary hot heat exchange mode described in figure is flexible, but any combination.The heat pump form comprises that all have the heat pump form that can be used for auxiliary hot heating working medium characteristics.Anyone can draw other various forms of products in this section under enlightenment of the present invention, no matter but do any variation on its shape or structure, every or akin technical scheme identical with the present invention is all within its protection domain.
Description of drawings
Fig. 1 is the system schematic of the anti-defrosting capillary throttling arrangement of outer auxiliary heat;
Fig. 2 is the local enlarged diagram of the anti-defrosting capillary throttling integration of outer auxiliary heat.
In figure, 1 is compressor, the 2nd, four-way change-over valve, the 3rd, outdoor evaporimeter is the low-temperature heat exchange side, the 4th, magnetic valve, the 5th, the separatory capillary, the 6th, absolutely (every) hotting mask (layer), the 7th, heating, the 8th, check valve, the 9th, capillary, the 10th, device for drying and filtering, the 11st, heating condenser is high temperature heat exchange side, the 12nd, gas-liquid separator.
In Fig. 1 and Fig. 2 when the operation of dotted arrow direction indication winter heating.
The specific embodiment
Embodiments of the present invention can be completed according to Fig. 1 at the scene, and are simple and practical.Be based on the anti-defrosting capillary-compensated integrated apparatus schematic diagram of outer auxiliary heat of the white growth rhythm of multi-parameter.The invention will be further described below in conjunction with the drawings and specific embodiments.Among system architecture schematic diagram Fig. 1 of the present invention and Fig. 2:
referring to Fig. 1, what Fig. 1 explained is the flow direction of cold-producing medium under heating condition, when system when low temperature and high relative humidity is easy to start the heating condition operation under the working condition of frosting, the heating energising, after compressor 1 outlet process four-way change-over valve 2, the cold media gas of HTHP is high temperature heat exchange side 11 through heating condenser, cooling by super-dry filter 10, arrive capillary-compensated integrated apparatus I through check valve 8, should outer auxiliary heat prevent that defrosting capillary throttling arrangement was when guaranteeing coolant throttle, promote the energy of refrigerant, make it when next being low-temperature heat exchange side 3 through outdoor evaporimeter, when pressure reduces, the efficient heat in the absorption chamber outer air and vaporizing, through four-way change-over valve 2, arrive compressor 1 by gas-liquid separator 12 and carry out further compression pyrogenic circulation.
Referring to Fig. 1, when winter, outdoor temperature was higher, system carried out normal heating condition operation, and heating 7 is not worked, shut electromagnetic valve 4.After compressor 1 outlet process four-way change-over valve 2, the cold media gas of HTHP is high temperature heat exchange side 11 through heating condenser, cooling by super-dry filter 10, be the 3 vaporization heat absorptions of low-temperature heat exchange side to outdoor evaporimeter after arriving capillary 9 throttlings through check valve 8, then pass through four-way change-over valve 2, arrive compressor 1 by gas-liquid separator 12 and carry out further compression pyrogenic circulation.
Referring to Fig. 1, when the anti-defrosting of needs, heating 7 energisings, opens solenoid valve 4.The refrigerant of the middle temperature high pressure that was cooled is coated with the outer auxiliary hot capillary throttling integrated apparatus I of heating through outer surface, heating is coated on each separatory extracapillary, coat thereon absolutely more in addition (every) hotting mask (layer) 6, after refrigerant temperature is suitably improved, the evaporating temperature of refrigerant is corresponding being improved also, can indoor function guarantee to be in the heating operation operating mode so always, can not have influence on indoor comfort level.Can suitably improve compression ratio after refrigerant after evaporating temperature improves enters compressor, make the high efficiency work of compression function.
Referring to Fig. 1, heating 7 length, absolutely (every) hotting mask (layer) 6 length, determine its length and watt level according to defrosting concurrent heating amount, refrigerant property, wherein, heating only coats separatory latter half capillaceous, i.e. close outdoor evaporation side part.
Referring to Fig. 1 Fig. 2, capillary throttle device and outer auxiliary thermal element form the anti-defrosting integrated apparatus of outer auxiliary heat, optimized the structure of product, change the little and easy installation change of area on the basis of existing equipment, only heating coats the part of the namely close outdoor evaporation side of separatory latter half capillaceous, improve the refrigerant energy, evaporating temperature increases, and has improved the Energy Efficiency Ratio of product.
Referring to Fig. 1, the way of realization of high temperature heat exchange side 11 also has multiple, can be air-cooled can be also water-cooled, so heat pump involved in the present invention can be other heat pump forms such as air source heat pump, soil source heat pump, water resource heat pump or heat source tower.
In addition, can change flexibly referring to the anti-defrosting mode of the electric heating in Fig. 1 Fig. 2, heating 7 in figure can change hot water, deep fat, hot gas or heat pipe into, be not namely that electricity is auxiliary herein, be other auxiliary hot mode, same purpose is all by hot water, deep fat, hot gas or heat pipe and refrigerant heat exchange, and the energy of refrigerant is improved, making refrigerant enter outdoor evaporimeter 3 is that the low-temperature heat exchange side has higher energy, and evaporating temperature is higher reaches anti-defrosting.
When moving under cooling condition summer, the heating 7 no power work in Fig. 1, shut electromagnetic valve 4, by former cooling condition operation, namely the anti-defrosting capillary throttling integrated apparatus of outer auxiliary heat does not start, and refrigerant only carries out throttling.By former cooling condition operation.Change the four-way change-over valve direction, high temperature and high pressure steam by compressor 1 discharge, enter high temperature heat exchange side 11 through cross valve 2, refrigerant vapour is condensed into liquid, enters low-temperature heat exchange side 3 through capillary 9, and heat absorption in low-temperature heat exchange side 11, room air is cooling, and the refrigerant vapour after evaporation is sucked by compressor 1 by gas-liquid separator 12 after cross valve 2, go round and begin again like this, realize kind of refrigeration cycle.
When heat pump freezed with heating operation, principle was the same, all carried out according to contrary Carnot cycle, and just the working range difference of getting, take from high temperature heat exchange side 11 when heating, and takes from low-temperature heat exchange side 3 during refrigeration.By four-way change-over valve turn to realize freezing and heat the conversion operation of different operating modes.
The anti-defrosting capillary throttling integrated apparatus of outer auxiliary heat is for capillary under heating condition, and this invention has successfully overcome the existing workflow reengineering complexity that heats of similar products at home and abroad, and components and parts are changed frequent, are unfavorable for the shortcomings such as production and processing.Defrosting device involved in the present invention is at present without industrial production, and the auxiliary device of existing electricity adopts the heating needed air of user's side or water, but not heating and cooling working medium, thereby efficient is low; Adopt electric auxiliary technology installation process complicated in evaporimeter, reliably reach the non-constant of security, can't adopt in industrial process.Although and hot gas bypass defrosting adopts the heating and cooling agent, affected the output of heat in winter, and effect is unstable, user's comfortableness is poor.The present invention adopts capillary and outer auxiliary heat to form one chemoprevention defrosting device, uses easy operating process, and components and parts are changed less, are easy to production and the processing of product, control reliability higher; Compare with the anti-defrosting of interior auxiliary heat, the user is except having preferably thermal comfort or output heat, and outer auxiliary Re Gengyi realizes simultaneously, controls reliability higher.Can successfully prevent the situation of outdoor evaporation side frosting.The present invention has realized that the heat pump assembly cooling or heating effect is good, and guarantees each components and parts stable operation of heat pump.
Claims (5)
1. an outer auxiliary heat is prevented defrosting capillary throttling integrated apparatus, mainly by compressor (1), four-way change-over valve (2), outdoor evaporimeter is low-temperature heat exchange side (3), magnetic valve (4), separatory capillary (5), absolutely (every) hotting mask (layer) (6), heating (7), check valve (8), capillary (9), device for drying and filtering (10), heating condenser is high temperature heat exchange side (11), gas-liquid separator (12) forms, it is characterized in that the anti-defrosting capillary throttling integrated apparatus I of described outer auxiliary heat is by capillary (9), separatory capillary (5), magnetic valve (4), absolutely (every) hotting mask (layer) (6), the integrated apparatus that heating (7) forms.
2. a kind of outer auxiliary heat according to claim 1 is prevented defrosting capillary throttling integrated apparatus, it is characterized in that described separatory capillary (5) is coated with heating (7), form anti-defrosting capillary throttling integrated, and this heating (7) outer cladding absolutely (every) whether hotting mask (layer) (6) is to reduce the waste of energy, need the startup system to prevent defrosting function by controlling by the folding of control magnetic valve (4) simultaneously.
3. the anti-defrosting capillary throttling integrated apparatus I of a kind of outer auxiliary heat according to claim 1, it is characterized in that described heater can auxiliary for electricity (7), hot water, the heat exchangers such as deep fat, hot gas or heat pipe.
4. the anti-defrosting capillary throttling integrated apparatus I of a kind of outer auxiliary heat according to claim 1, is characterized in that described heater at the latter half of separatory capillary (5), and be low-temperature heat exchange side (3) near outdoor evaporimeter.
5. a kind of outer auxiliary heat according to claim 1 is prevented defrosting capillary throttling integrated apparatus I, it is characterized in that described outdoor evaporimeter is that low-temperature heat exchange side (3) can be the mode of one or more parallel running, it does not change the version of outdoor evaporimeter (3) and separatory capillary (5).
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| CN2013100888865A CN103123192A (en) | 2013-03-20 | 2013-03-20 | External auxiliary heating frosting-proof capillary throttling integrated device |
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| CN2013100888865A CN103123192A (en) | 2013-03-20 | 2013-03-20 | External auxiliary heating frosting-proof capillary throttling integrated device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091076A (en) * | 2016-07-25 | 2016-11-09 | 湖南大学 | A kind of heat source tower heat pump using salt-free formula external auxiliary heating frosting-proof device |
| CN106642653A (en) * | 2016-12-15 | 2017-05-10 | 浙江水马环保科技有限公司 | Quick heating structure of water purifier |
| CN106979638A (en) * | 2017-04-28 | 2017-07-25 | 上海理工大学 | Automobile air-conditioning evaporator defroster |
| CN107883620A (en) * | 2017-11-09 | 2018-04-06 | 内蒙古尚易环保新能源有限公司 | Air source heat pump and air source heat pump optimization system |
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| CN1884941A (en) * | 2006-07-10 | 2006-12-27 | 陈志强 | Heat pump heating system capable of improving heating effect in winter and special heating apparatus therefor |
| CN202470558U (en) * | 2012-02-23 | 2012-10-03 | 湖南大学 | Front external auxiliary heating anti-frosting device |
| CN202532795U (en) * | 2012-03-09 | 2012-11-14 | 湖南大学 | Spanning type outer auxiliary heating anti-defrosting device |
| CN202532794U (en) * | 2012-02-23 | 2012-11-14 | 湖南大学 | Front internal auxiliary heating defrosting device |
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- 2013-03-20 CN CN2013100888865A patent/CN103123192A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1884941A (en) * | 2006-07-10 | 2006-12-27 | 陈志强 | Heat pump heating system capable of improving heating effect in winter and special heating apparatus therefor |
| CN202470558U (en) * | 2012-02-23 | 2012-10-03 | 湖南大学 | Front external auxiliary heating anti-frosting device |
| CN202532794U (en) * | 2012-02-23 | 2012-11-14 | 湖南大学 | Front internal auxiliary heating defrosting device |
| CN202532795U (en) * | 2012-03-09 | 2012-11-14 | 湖南大学 | Spanning type outer auxiliary heating anti-defrosting device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091076A (en) * | 2016-07-25 | 2016-11-09 | 湖南大学 | A kind of heat source tower heat pump using salt-free formula external auxiliary heating frosting-proof device |
| CN106642653A (en) * | 2016-12-15 | 2017-05-10 | 浙江水马环保科技有限公司 | Quick heating structure of water purifier |
| CN106642653B (en) * | 2016-12-15 | 2019-04-09 | 浙江水马环保科技有限公司 | A kind of water purifier speed heat structure |
| CN106979638A (en) * | 2017-04-28 | 2017-07-25 | 上海理工大学 | Automobile air-conditioning evaporator defroster |
| CN107883620A (en) * | 2017-11-09 | 2018-04-06 | 内蒙古尚易环保新能源有限公司 | Air source heat pump and air source heat pump optimization system |
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Application publication date: 20130529 |