CN217560135U - Fin tube cavity evaporation air solar composite source heating air conditioning water heater - Google Patents
Fin tube cavity evaporation air solar composite source heating air conditioning water heater Download PDFInfo
- Publication number
- CN217560135U CN217560135U CN202220643805.8U CN202220643805U CN217560135U CN 217560135 U CN217560135 U CN 217560135U CN 202220643805 U CN202220643805 U CN 202220643805U CN 217560135 U CN217560135 U CN 217560135U
- Authority
- CN
- China
- Prior art keywords
- water
- heat
- hot water
- tube cavity
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The finned tube cavity evaporation air solar composite source heating air-conditioning water heater comprises: the fin tube cavity of the evaporative condensation absorber not only absorbs the sensible heat of cooling ambient air, the latent heat of condensation or the latent heat of frost condensation, but also avoids tracking and absorbing solar radiation, thereby increasing the evaporation temperature by 2 ℃ and delaying the frost formation of the fin tube cavity; the heat pump is used for producing hot water, and then the mixed heat release defrosting is carried out in a vertical circulating spraying mode, so that the continuous heating of the heat pump is ensured, partial heating quantity is prevented from offsetting defrosting refrigerating capacity due to heat capacity fluctuation of an evaporator and a condenser, and the defrosting heat is accurately put in to double the heating energy efficiency ratio of the heat pump to 3.6. The ambient air is driven by the axial flow fan to form horizontal forced convection in a fin tube cavity of the evaporative condensation absorber with the fin ratio of 15, so that when supplemented tap water is vertically circulated, sprayed and cooled in the fin tube cavity, the supplemented tap water absorbs heat and rises in temperature, negative pressure is expanded, falling film evaporation is carried out, and the sensible heat of temperature rise and evaporation latent heat of the supplemented tap water take away heat of condensation of working media of a heat pump in the tube together, so that the refrigeration performance coefficient is doubled to 7.
Description
(I) technical field
The invention relates to a solar composite source heating air-conditioning water heater with finned tube cavities for evaporating air.
(II) background of the invention
The technical current situation of a light pipe evaporative condenser, an air source heat pump and a solar heat pump is as follows:
1. light pipe evaporative condenser: the ambient air is driven by the axial flow fan to flow upwards at a low speed in the evaporative condenser with the finned ratio of 1, so that when cooling water is sprayed and cooled in a vertical circulating mode on the outer wall of the light pipe, the cooling water absorbs heat and is heated to 5 ℃ end difference of the wet bulb temperature of the ambient air, negative pressure falling film evaporation is carried out, and in addition, the condensation temperature of the working medium of the heat pump in the pipe is different from 2 ℃ end difference of the negative pressure falling film evaporation, so that the summer refrigerating performance coefficient EER of the compression type refrigerating unit can only reach 6. On the other hand, the heat pump heating can not be realized by taking heat from the ambient air in winter, so that a client must be provided with two sets of equipment, namely an air source heat pump and an evaporative condenser refrigerating unit, thereby doubling project investment.
2. The air source heat pump drives the heating air-conditioning water heater: the air source heat pump used as three functions of heating, air conditioning and hot water has been commercially popularized, but the periodic defrosting process has 50 ℃ temperature difference heat capacity fluctuation (evaporator + air suction pipe)/(condenser + air exhaust pipe), which causes the partial heating capacity of the heat pump to offset the defrosting cooling capacity, and the national standard stipulates that the defrosting time does not exceed 20% of the defrosting cycle, so 40% of the air source heat pump belongs to the offset operation period, and the air source heat pump with the full-load heating energy efficiency ratio COP as high as 3 has the average heating energy efficiency ratio COP of only 1.8, thereby causing the average heating capacity of the air source heat pump in the wet winter to be seriously insufficient.
3. Solar heat pump: the solar flat plate absorber is made of double-layer aluminum plates with black-coated light-facing surfaces, and a distributor and a circulating pipeline of a heat pump working medium are formed between the double-layer aluminum plates; the black-coated aluminum plate is used for absorbing solar radiation to provide heat for evaporation of working medium of the heat pump and is designed to be a heat pump evaporator, and the distributor and the circulation pipeline are used for optimizing the evaporation process of the heat pump cycle. The intensity of solar radiation which can be received by each square meter of area does not exceed 1kW, so that the improvement of the heating capacity of the heat pump is limited; in addition, the evaporator cannot absorb heat from air at night due to no fins, so that the utilization rate of products is reduced, the evaporator can only be applied to heating a small amount of household hot water in the daytime, and the heating capacity of the evaporator is far lower than that of an air source heat pump water heater.
In conclusion, the heating air-conditioning hot water market urgently needs to solve the problem that the average heating capacity is seriously attenuated due to the defrosting of the air source heat pump in winter, and the light pipe evaporative condenser technology is used for improving the cooling performance coefficient EER of the heat pump in summer.
Disclosure of the invention
The invention aims at: the finned tube evaporation, air energy and solar energy composite heat source evaporator/condenser is constructed, and the finned tube cavity evaporation air solar composite source heating air-conditioning water heater is invented to meet the growing living demands.
The invention adopts the technical scheme that a fin tube cavity evaporation air solar composite source heating air-conditioning water heater is shown as the attached figure 1 and comprises the following components: 1-a compressor; 1-1-a gas-liquid separator; a 2-four-way reversing valve; 3-use side heat exchanger; 4-a check valve; 5-a high pressure reservoir; 6-an economizer; 6-1-economizer expansion valve; 7-drying the filter; 8-heat pump expansion valve; 9-fin lumen evaporative condensation absorber; 10-an axial flow fan; 11-a water distribution disc; 12-water collecting tray; 13-a drain valve; 14-a circulating water pump; 15-a check valve; 16-an electric three-way valve; 17-a fan coil; 18-expansion tank with manual valve; 19-a filter; 20-hot water circulating pump; 21-hot water check valve; 22-a hot water heater; 23-a heat preservation hot water tank; 24-a hot water filter; 25-a liquid level switch; 26-a water replenishing electric valve; 27-manual regulating valve; 28-hot water nozzle; 29-cooling circulation pump; 30-cooling the check valve; 31-a cooling filter; 32-cooling the electric valve; 33-defrost electric valve; 34-the fin tube cavity evaporates the air solar composite source box; 35-a dehydrator; 36-floating ball water replenishing device; 37-running water motorised valve etc. and its characteristics are:
the heat pump working medium side of a heat exchanger 3 at a use side, a tee joint, a check valve 4, a tee joint, a high-pressure liquid storage device 5, a tee joint, a cold passing side of an economizer 6, a drying filter 7, a heat pump expansion valve 8, a tee joint, a check valve 4, a tee joint, a fin tube cavity evaporative condensation absorber 9, the heat pump working medium side, the four-way reversing valve 2, the gas-liquid separator 1-1 and the compressor 1 are connected in series through a heat pump working medium pipeline to form a heat pump circulation loop;
a tee joint, an economizer expansion valve 6-1, an economizer 6 heat pump working medium side and a compressor 1 air supplement port are connected in series through a heat pump working medium pipeline to form an economizer air supplement and enthalpy increase loop;
the top of the fin lumen evaporative air solar composite source box 34 is provided with an axial flow fan 10 to drive ambient air to pass through fins among the fins of the fin lumen evaporative condensation absorber 9 which are arranged facing the sun and are vertically arranged in the southeast and west, and the ambient air flows out from the upper part after being collected to form the fin lumen evaporative condensation absorber 9;
fin tube cavity evaporative condensation absorbers 9 are respectively and vertically arranged on three sunny surfaces of the east, south and west, so that tracking-free absorption of solar radiation is realized in the morning, noon and afternoon of the local area;
a water collecting disc 12 with a horizontal inclination angle is arranged right below three fin tube cavity evaporative condensation absorbers 9 which are vertically arranged towards the sun surface in the southeast and the west, and a water outlet at the lowest inclination angle of the water collecting disc is connected with a water discharge valve 13 through a water discharge pipe to form a condensed water, defrosting water and defrosting water discharge loop;
the circulating water pump 14 is connected with a check valve 15, a circulating water side of the use side heat exchanger 3, an electric three-way valve 16, a parallel fan coil 17, a confluence three-way valve, an expansion tank 18 with a manual valve, a filter 19 and the circulating water pump 14 in series through a circulating water pipeline to form a heating/air conditioning functional circulating loop;
the circulating water pump 14 is connected with a check valve 15, a circulating water side of the use side heat exchanger 3, an electric three-way valve 16, a circulating water side of the hot water heater 22, a confluence three-way valve, an expansion tank 18 with a manual valve, a filter 19 and the circulating water pump 14 in series through a circulating water pipeline to form a hot water functional circulating loop;
the hot water circulating pump 20 is connected in series with a hot water check valve 21, a hot water side of a hot water heater 22, a heat preservation hot water tank 23, a water replenishing tee joint, a hot water filter 24 and the hot water circulating pump 20 through a hot water pipeline to form a hot water circulating heating loop;
the upper liquid level switch 25 of the heat preservation hot water tank 23 controls the opening of the water supplementing electric valve 26, and the outlet of the water supplementing electric valve 26 is connected with a water supplementing tee joint to form a water supplementing loop;
a hot water outlet at the bottom of the heat-preservation hot water tank 23 is connected in series with a hot water tee joint, a manual regulating valve 27 and a hot water nozzle 28 through a hot water heat-preservation pipeline to form a hot water spraying loop;
the cooling water outlet of the water collecting disc 12 is connected in series with a cooling filter 31, a cooling circulating pump 29, a cooling check valve 30, a cooling electric valve 32, a switching tee joint, a water distribution tee joint and a water distribution disc 11 through a cooling pipeline to form an evaporative cooling hot water defrosting circulation loop;
a hot water outlet at the bottom of the heat preservation hot water tank 23 is connected in series with a hot water tee joint, a defrosting electric valve 33, a switching tee joint, a water distribution tee joint and a water distribution disc 11 through a hot water heat preservation pipeline to form a hot water defrosting loop;
the axial flow fans 10 are uniformly arranged at the top of the fin tube cavity evaporation air solar composite source box body 34, three fin tube cavity evaporation type condensation absorbers 9 which are arranged in the southeast and west of the box body and face the sun to absorb sunlight are vertically arranged, a closed cavity is arranged on the north of the fin tube cavity evaporation type condensation absorbers to arrange a heat pump unit, and a water collecting disc 12 is arranged at the bottom of the fin tube cavity evaporation air solar composite source box body to form a fin tube evaporation air solar composite source;
the fin tube cavity evaporative condensation absorber 9, the dehydrator 35 and the axial flow fan 10 form an air heat and mass exchange loop;
the floating ball water replenishing device 36 is connected with an upper water pipeline through a tap water electric valve 37, and water is replenished according to the water level of the water accumulating disc 12 to form a water replenishing loop.
The fin lumen evaporative condensation absorber 9 is a heat exchanger with 1 row to 10 rows of fin heat exchange tubes.
The fin pitch of the fin lumen evaporative condensation absorber 9 is 1mm to 10mm.
The surface of the fin tube cavity evaporative condensation absorber 9 is blackened; or a close adhesion visible light selective coating.
The number of the axial fans 10 is 1 to 40.
The fin tube cavity evaporative condensation absorber 9 is a red copper tube red copper fin; or stainless steel tube and stainless steel fins; or an aluminum pipe aluminum fin; or carbon steel tube carbon steel fins; or a copper tube aluminum fin.
The bottom of the water distribution plate 11 is uniformly distributed with plastic round short pipes with the lower inner diameter of 0.2mm and the length of 2 mm.
The axial flow fan 10 is a variable flow fan, wherein the normal flow is adopted for heat taking operation in winter, the doubled flow is adopted for heat releasing operation in summer, and the doubled flow is adopted for defrosting operation in winter.
The working principle of the invention is explained in conjunction with the attached figure 1 as follows:
1. the heating function is realized by heat pump circulation and hot water defrosting in winter:
(1) And (3) heat pump circulation: the compressor 1 drives the high-pressure and overheated gaseous heat pump working medium to flow through the four-way reversing valve 2 and the heat pump working medium side of the use side heat exchanger 3 to release exhaust sensible heat and condensation latent heat to circulating water at 45 ℃ to form high-pressure and saturated liquid heat pump working medium, then the high-pressure and overheated gaseous heat pump working medium enters the heat pump expansion valve 8 through the tee joint, the check valve 4, the tee joint, the high-pressure liquid storage device 5, the tee joint, the economizer 6 and the drying filter 7 to be throttled into low-pressure and low-temperature two-phase heat pump working medium, then the low-pressure and low-temperature two-phase heat pump working medium flows into the heat pump working medium side of the fin tube cavity evaporative condensation absorber 9 through the tee joint, the check valve 4 and the tee joint to absorb the ambient air to reduce the sensible heat, the condensation latent heat or the frost latent heat and solar radiation to be evaporated into the low-pressure and overheated gaseous heat pump working medium, and the low-pressure and overheated gaseous heat pump working medium flows through the four-way reversing valve 2 and the gas-liquid separator 1 to be compressed into the high-pressure and overheated gaseous heat pump working medium again by the compressor 1 to form a heat pump cycle. The high-pressure saturated liquid heat pump working medium at the outlet of the high-pressure liquid storage device 5 flows into an economizer expansion valve 6-1 through a tee joint, is throttled into medium-pressure and medium-temperature two-phase heat pump working medium, flows through the evaporation side of the economizer 6 to absorb the cooling, supercooling and sensible heat of the heat pump working medium at the other side to evaporate into medium-pressure and superheated gas heat pump working medium, and is sucked into a gas supplementing port of the compressor 1 to form the gas-supplementing and enthalpy-increasing circulation of the economizer.
(2) Absorbing air and solar composite heat source: the ambient air is driven by the normal flow axial flow fan, and the fin tube cavity formed by the fin surface of the fin tube cavity evaporative condensation absorber 9 and the outer wall of the pipeline not only absorbs the cooling sensible heat, the condensation latent heat or the frost latent heat of the ambient air at 7 ℃, but also avoids tracking and absorbing solar radiation, thereby increasing the evaporation temperature by 2 ℃ with an air-solar composite heat source and delaying the frost formation of the fin tube cavity. The evaporation temperature is lower than the ambient air temperature without heat loss, so that the low-temperature solar heat collection efficiency reaches 100 percent. The condensed water formed in the tube cavities of the fins falls into the water collecting tray 12 vertically below under the action of gravity and is discharged by the water discharge valve 13.
(3) Defrosting with hot water: the ambient air is driven by the flow doubling axial flow fan, when the fin surface and the tube outer wall of the fin tube cavity evaporative condensation absorber 9 are fully frosted, the defrosting electric valve 33 is opened to enable the hot water at 55 ℃ in the heat preservation hot water tank 23 to flow through the water distribution disc 11 under the action of gravity and height difference, the hot water flows into the fin tube cavity of the fin tube cavity evaporative condensation absorber 9 corresponding to the lower part through the downward micropores uniformly distributed on the water distribution disc, and then the hot water is cooled by 53 ℃ to sensible heat and vertically and circularly sprayed by the fall to mix the heat and melt the fin tube cavity frost layer, the mixing temperature of the hot water and the defrosting water is ensured to be higher than the freezing point by more than 2 ℃, so that the water discharge valve 13 is prevented from being blocked due to icing before the water collection disc 12 is discharged. The defrosting water and the defrosting water formed in the tube cavities of the fins fall into the water collecting tray 12 vertically below under the action of gravity and are discharged by the water discharge valve 13. The flow doubled ambient air blows the defrosted water to avoid freezing.
(4) Defrosting by using tap water: when the surface of the fin and the outer wall of the fin tube cavity evaporative condensation absorber 9 are full of frost, a tap water electric valve 37 is opened, 22 ℃ tap water is supplemented by a floating ball water replenisher 36, then the tap water is driven by a cooling circulating pump 29 to circularly flow through an outlet at the bottom of the water collecting tray 12, a cooling filter 31, the cooling circulating pump 29, a cooling check valve 30, a cooling electric valve 32, a switching tee joint and a water distribution tee joint and flow through the water distribution tray 11, and then the tap water flows into the fin tube cavity of the fin tube cavity evaporative condensation absorber 9 corresponding to the lower part through downward micropores uniformly distributed in the water distribution tray, and then sensible heat and drop vertical circulating spraying are carried out by cooling at 20 ℃ of the tap water to mix and release the fin tube cavity frost layer so as to ensure that the mixed temperature of the tap water and the frost water is higher than the freezing point by more than 2 ℃, thereby avoiding the blockage of the drain valve 13 caused by icing before the water is discharged out of the water collecting tray 12. The defrosting water and the defrosting water formed in the tube cavities of the fins fall into the water collecting tray 12 vertically below under the action of gravity and are discharged by the water discharge valve 13.
The continuous heating of the heat pump is ensured by defrosting with hot water and/or tap water, partial heating quantity offsetting defrosting refrigerating quantity caused by 50 ℃ temperature difference heat capacity fluctuation of an air source heat pump defrosting period (an evaporator + an air suction pipe) and a condenser + an air exhaust pipe) is avoided, and the defrosting heat is accurately put in, so that the average heating energy efficiency ratio COP of the heat pump in winter is doubled from 1.8 to 3.6 of that of an air source heat pump.
(5) Heating circulation: the circulating water pump 14 drives circulating water to flow through a check valve 15, a circulating water side of the use side heat exchanger 3, an electric three-way valve 16, a flow dividing three-way valve, a circulating water side of a fan coil 17, a flow converging three-way valve, an expansion tank 18 with a manual valve, a filter 19 and the circulating water pump 14, so that condensation heat release of a heat pump working medium side of the use side heat exchanger 3 is brought into a plurality of groups of fan coils 17 and is discharged to 18 ℃ indoor return air for heating, and the function of heating in winter is realized through heat pump circulation.
2. The air conditioning function is realized by summer refrigeration cycle and evaporative condensation:
(1) Refrigeration cycle: the compressor 1 drives the high-pressure and overheated gaseous heat pump working medium to flow through the four-way reversing valve 2 and the fin tube cavity evaporative condensation absorber 9 to form the high-pressure and saturated liquid heat pump working medium by spraying and expanding falling film evaporative cooling water to the vertical circulation of the other side and flowing through the ambient air to release exhaust sensible heat and condensation latent heat, then the high-pressure and saturated liquid heat pump working medium enters the heat pump expansion valve 8 through the tee joint, the check valve 4, the tee joint, the high-pressure reservoir 5, the tee joint and the economizer 6 passing through the cold side and the drying filter 7, is throttled into the low-pressure and low-temperature two-phase heat pump working medium, then flows through the tee joint, the check valve 4 and the tee joint to flow into the heat pump working medium side of the use side heat exchanger 3 to absorb circulating water to reduce temperature and sensible heat and evaporate into the low-pressure and overheated gaseous heat pump working medium, and then flows through the four-way reversing valve 2 and the gas-liquid separator 1-1 to be compressed into the high-pressure and overheated gaseous heat pump working medium again by the compressor 1 to form a refrigeration cycle. The high-pressure saturated liquid heat pump working medium at the outlet of the high-pressure liquid storage device 5 flows into an economizer expansion valve 6-1 through a tee joint, is throttled into medium-pressure and medium-temperature two-phase heat pump working medium, flows through the evaporation side of the economizer 6 to absorb the cooling, supercooling and sensible heat of the heat pump working medium at the other side to evaporate into medium-pressure and superheated gas heat pump working medium, and is sucked into a gas supplementing port of the compressor 1 to form the gas-supplementing and enthalpy-increasing circulation of the economizer.
(2) Fin tube cavity evaporative condenser: the 34 ℃/65% ambient air is driven by the flow doubling axial fan 10 to flow through the fin lumens of the fin lumen evaporative condensation absorber 9 with the fin ratio of 15 from the south-east to the west to form horizontal forced convection. The tap water electric valve 37 is opened, the floating ball water replenishing device 36 replenishes 25 ℃ tap water, the tap water is driven by the cooling circulating pump 29 to flow through the water distribution disc 11 through the outlet at the bottom of the water collecting disc 12, the cooling filter 31, the cooling circulating pump 29, the cooling check valve 30, the cooling electric valve 32, the switching tee joint and the water distribution tee joint in a circulating manner, the tap water flows into the fin tube cavity of the fin tube cavity evaporative condensation absorber 9 corresponding to the lower part through downward micropores uniformly distributed on the water distribution disc, when the replenished tap water is vertically circulated, sprayed and cooled in the fin tube cavity, the water is cooled by absorbing heat and raising the temperature to the ambient air wet ball temperature of 1 ℃, the end difference expands falling film to evaporate water vapor under negative pressure, the air flow cooled and cooled by the fin tube cavity is taken out, part of the air flow is captured by the dehydrator 35 and falls into the water collecting disc 12 under the action of gravity, and the rest of the air flow is dissipated to the ambient air from the top of the fin evaporative air solar compound source box 34 along with the air flow; the sensible heat of temperature rise and the latent heat of evaporation take away the heat of condensation of the working medium of the heat pump in the pipe together so as to double the refrigerating performance coefficient EER from 2.8 to 7 of the air source heat pump in summer. The circulating spray cooling water falls into the water collecting tray 12 vertically below under the action of gravity and is discharged by the water discharge valve 13.
(3) Air conditioning circulation: the circulating water pump 14 drives circulating water to flow through a check valve 15, a circulating water side of the use side heat exchanger 3, an electric three-way valve 16, a flow dividing three-way valve, a circulating water side of a fan coil 17, a flow converging three-way valve, an expansion tank 18 with a manual valve, a filter 19 and the circulating water pump 14, so that evaporation cold energy on a working medium side of a heat pump of the use side heat exchanger 3 is brought into the multiple groups of fan coils 17, low-level heat energy of return air in an air-conditioning room at 27 ℃ is absorbed, and the air-conditioning function in summer is realized through refrigeration circulation.
3. The heat pump circulation and hot water defrosting realize the hot water function all the year round:
(1) And (3) heat pump circulation: the compressor 1 drives the high-pressure and overheated gaseous heat pump working medium to flow through the four-way reversing valve 2 and the heat pump working medium side of the use side heat exchanger 3 to release exhaust sensible heat and condensation latent heat to 50 ℃ circulating water to form high-pressure and saturated liquid heat pump working medium, then the high-pressure and saturated liquid heat pump working medium enters the heat pump expansion valve 8 through the tee joint, the check valve 4, the tee joint, the high-pressure liquid storage device 5, the tee joint, the economizer 6 and the drying filter 7 to be throttled into low-pressure and low-temperature two-phase heat pump working medium, then the low-pressure and low-temperature two-phase heat pump working medium flows into the heat pump working medium side of the fin tube cavity evaporative condensation absorber 9 through the tee joint, the check valve 4 and the tee joint to absorb the ambient air to reduce the temperature sensible heat, the condensation latent heat or the frost latent heat and solar radiation to be evaporated into the low-pressure and overheated gaseous heat pump working medium, and the low-pressure and overheated gaseous heat pump working medium flows through the four-way reversing valve 2 and the gas-liquid separator 1 to be compressed into the high-pressure and overheated gaseous heat pump working medium again by the compressor 1 to form heat pump circulation. The high-pressure saturated liquid heat pump working medium at the outlet of the high-pressure liquid storage device 5 flows into an economizer expansion valve 6-1 through a tee joint, is throttled into medium-pressure and medium-temperature two-phase heat pump working medium, flows through the evaporation side of the economizer 6 to absorb the cooling, supercooling and sensible heat of the heat pump working medium at the other side to evaporate into medium-pressure and superheated gas heat pump working medium, and is sucked into a gas supplementing port of the compressor 1 to form the gas-supplementing and enthalpy-increasing circulation of the economizer.
(2) Absorbing air and solar composite heat source: the fin tube cavity formed by the fin surface of the fin tube cavity evaporative condensation absorber 9 and the outer wall of the pipeline not only absorbs sensible cooling heat, latent condensation heat or latent condensation heat of ambient air at 20 ℃, but also avoids tracking and absorbing solar radiation, thereby increasing the evaporation temperature by 2 ℃ by using an air-solar composite heat source and delaying the frosting of the fin tube cavity. The evaporation temperature is lower than the ambient air temperature without heat loss, so that the low-temperature solar heat collection efficiency reaches 100 percent. The condensed water formed in the tube cavities of the fins falls into the water collecting tray 12 vertically below under the action of gravity and is discharged by the water discharge valve 13.
(3) Hot water circulation: the circulating water pump 14 drives circulating water to flow through the check valve 15, the circulating water side of the use side heat exchanger 3, the electric three-way valve 16, the circulating water side of the hot water heater 22, the confluence three-way valve, the expansion tank 18 with the manual valve, the filter 19 and the circulating water pump 14, so that condensation heat of the heat pump working medium side of the use side heat exchanger 3 is discharged into the hot water heater 22, hot water at 50 ℃ is discharged, and the annual hot water heating function is realized through heat pump circulation.
(4) Bathing with hot water: the hot water circulating pump 20 drives hot water to flow through the hot water check valve 21, the hot water side of the hot water heater 22, the heat preservation hot water tank 23, the water supplementing tee joint, the hot water filter 24 and the hot water circulating pump 20 so as to be circularly heated by the hot water heater 22 for temperature rise. The upper liquid level switch 25 of the heat preservation hot water tank 23 controls the opening of the water replenishing electric valve 26 to realize water replenishing. The manual regulating valve 27 is opened, so that the hot water flows through the parallel-connected groups of the manual regulating valve 27 and the hot water nozzle 28 from the bottom hot water outlet of the heat preservation hot water tank 23 through the hot water pipeline under the action of gravity, and the hot water bathing function is realized.
The invention integrates the energy-saving technologies of heat pumps such as an air source heat pump, a heating air-conditioning water heater, a fin tube cavity evaporative condenser, hot water defrosting, a solar absorber and the like, thereby having the following technical advantages:
(1) The fin tube cavity of the fin tube cavity evaporative condensation absorber not only absorbs the sensible heat of cooling, latent heat of condensation or latent heat of frost of ambient air, but also avoids tracking and absorbing solar radiation, thereby increasing the evaporation temperature by 2 ℃ by using an air-solar composite heat source and delaying the frost formation of the fin tube cavity. Since the evaporation temperature is lower than the ambient air temperature, no heat loss exists, and the low-temperature solar heat collection efficiency reaches 100%.
(2) The heat pump is used for producing hot water, and then the mixed heat release defrosting is carried out in a vertical circulating spraying mode so as to ensure that the heat pump can continuously produce heat, partial heating quantity is prevented from offsetting defrosting refrigerating capacity due to 50 ℃ temperature difference heat capacity fluctuation of an air source heat pump defrosting period (an evaporator + an air suction pipe) and a condenser + an exhaust pipe), and the defrosting heat is accurately put in, so that the average heating energy efficiency ratio COP of the heat pump in winter is doubled from 1.8 to 3.6 of that of the air source heat pump.
(3) The ambient air is driven by the axial flow fan to form horizontal forced convection in the fin tube cavity of the fin tube cavity evaporative condensation absorber with the fin ratio of 15, so that when supplemented tap water is vertically circulated and sprayed and cooled in the fin tube cavity, negative pressure expansion falling film evaporation is carried out when the temperature is raised to 1 ℃ of the wet bulb temperature of the ambient air through heat absorption and end difference, and the heat pump working medium condensation heat in the tube is taken away by the sensible heat of temperature rise and the latent heat of evaporation of the sensible heat, so that the refrigerating performance coefficient EER in summer is doubled to 7 from 2.8 of an air source heat pump.
Description of the drawings
FIG. 1 is a flow chart of the system of the present invention.
Wherein: 1-a compressor; 1-1-a gas-liquid separator; a 2-four-way reversing valve; 3-use side heat exchanger; 4-a check valve; 5-a high pressure reservoir; 6-an economizer; 6-1-economizer expansion valve; 7-drying the filter; 8-heat pump expansion valve; 9-fin lumen evaporative condensation absorber; 10-an axial flow fan; 11-a water distribution disc; 12-water collecting tray; 13-a drain valve; 14-a circulating water pump; 15-a check valve; 16-an electric three-way valve; 17-a fan coil; 18-expansion tank with hand valve; 19-a filter; 20-hot water circulating pump; 21-hot water check valve; 22-a hot water heater; 23-a heat preservation hot water tank; 24-hot water filter; 25-a liquid level switch; 26-a water replenishing electric valve; 27-manual regulating valve; 28-hot water nozzle; 29-cooling circulation pump; 30-cooling the check valve; 31-cooling the filter: 32-cooling the electric valve; 33-defrost electric valve; 34-a fin tube cavity evaporation air solar composite source box body; 35-a dehydrator; 36-floating ball water replenishing device; 37-tap water electric valve.
(V) detailed description of the preferred embodiments
An embodiment of a fin tube cavity evaporation air solar composite source heating air-conditioning water heater provided by the invention is shown in the attached figure 1, and is described as follows: volume displacement of 12m 3 A scroll compressor 1 with heating input electric power of 3kW and refrigerating input electric power of 1.5 kW; a carbon steel gas-liquid separator 1-1 with a connector diameter of 19mm, a wall thickness of 3mm and a separation efficiency of 99%; a brass four-way reversing valve 2 with an interface diameter of 19 mm; a stainless steel brazed plate type use side heat exchanger 3 with heating capacity of 10.5 kW; a red copper check valve 4 with a 9.52mm interface diameter; a carbon steel high-pressure liquid storage device 5 with the interface diameter of 9.52mm and the wall thickness of 3 mm; a stainless steel brazing plate type economizer 6 with an interface diameter of 6 mm; a brass economizer expansion valve 6-1 with an interface diameter of 6 mm; a red copper drying filter 7 with the interface diameter of 9.52 mm; a red copper heat pump expansion valve 8 with the interface diameter of 9.52 mm; 1300mm in height/(500 mm in eastern length + 1000mm in southward length + 500mm in westward length) 66mm in U-shaped bend/thickness, 6kW in air energy heat extraction, 1.5kW in solar energy heat extraction, 3 rows of copper tubes with 9.52mm in diameter and 0.3mm in thickness/4 mm in aluminum foil fin pitchA fin lumen evaporative condensation absorber 9;1 exhaust air volume 5600m 3 A flow fan 10 with a pressure of 80Pa and an input power of 70W; a stainless steel plate water distribution disc 11 with the width of 66 mm/(the east facing length of 500mm + the south facing length of 1000mm + the west facing length of 500 mm)/the height of 44mm, the wall thickness of 2mm, 1mm diameter micropores uniformly formed at the bottom and the hole distance of 4 mm; a stainless steel water tray 12 with the length of 1100mm, the width of 550mm, the depth of 50mm and the wall thickness of 2 mm; a stainless steel drain valve 13 with the interface diameter of 25 mm; flow 2m 3 H, lift 35mH 2 O, input power 262W and a carbon steel circulating water pump 14 with the interface diameter of 25 mm; a stainless steel check valve 15 with a connector diameter of 25 mm; an electric three-way valve 16 with a connector diameter of 25 mm; 8 fan coils 17 with water supply temperature of 45 ℃ in winter, water supply temperature of 7 ℃ in summer, length of 1000mm, height of 500mm, thickness of 250mm, heat dissipation capacity of 1kW and input power of 80W; the carbon steel expansion tank 18 with a connector diameter of 15mm and a manual valve; a stainless steel filter 19 with a port diameter of 25 mm; flow 2m 3 H, lift 7mH 2 O, a hot water circulation pump 20 of input power 76W; a stainless steel hot water check valve 21 with a connector diameter of 25 mm; a stainless brazed plate-type hot water heater 22 heating 10.5 kW; a heat preservation hot water tank 23 with the volume of 1000L and the wall thickness of 3 mm; a stainless steel hot water filter 24 with a port diameter of 25 mm; a stainless steel liquid level switch 25 with a height difference of 200 mm; a stainless steel water-supplementing electric valve 26 with the interface diameter of 15 mm; a stainless steel manual regulating valve 27 with the interface diameter of 15 mm; a stainless steel hot water nozzle 28 with a flow rate of 8L/min; flow rate of 180L/h and lift of 10mH 2 O, a stainless steel cooling circulation pump 29 with input power of 8W; a stainless steel cooling check valve 30 with a joint diameter of 10 mm; a stainless steel cooling filter 31 with a joint diameter of 10 mm; a stainless steel cooling electric valve 32 with the interface diameter of 10 mm; a stainless steel defrosting electric valve 33 with the interface diameter of 20 mm; the galvanized iron fin tube cavity evaporation air solar composite source box body 34 with the height of 1600 mm/length of 1110 mm/width of 1110 mm/wall thickness of 2 mm; a cylindrical glass fiber reinforced plastic dehydrator 35 having a height of 200 mm/diameter of 650 mm/thickness of 30 mm; a stainless steel floating ball water replenishing device 36 with a joint diameter of 10 mm; stainless steel tap water electric valve 37 with interface diameter of 10mm.
The embodiment of the invention realizes the following technical performances:
(1) The fin tube cavity of the fin tube cavity evaporative condensation absorber is driven by 1 axial flow fan, so that 1.5kW solar radiation is not only prevented from being tracked and absorbed, but also the cooling sensible heat, the condensation latent heat or the frost latent heat of 7 ℃ ambient air are absorbed, and the total amount is 7.5kW heat of an air and solar composite heat source to provide the evaporation latent heat of a working medium of a heat pump, so that the evaporation temperature is increased by 2 ℃ by the air and solar composite heat source, and the frost formation of the fin tube cavity is delayed; the evaporation temperature is lower than the ambient air temperature without heat loss, so that the low-temperature solar heat collection efficiency reaches 100 percent.
(2) The hot water with the temperature of 55 ℃ is prepared by the heat pump, the mixed heat release defrosting is performed through vertical circulating spraying, and the 1.5kW solar radiation is absorbed to ensure that the heat pump continuously heats 10.5kW, so that the situation that the heating capacity of the air source heat pump part counteracts the defrosting refrigerating capacity is avoided, the defrosting heat is accurately put in, and the compressor inputs 3kW of electric power, so that the average heating energy efficiency ratio COP of the heat pump in winter is doubled from 1.8 to 3.6 of that of the air source heat pump.
(3) Air volume 5600m 3 The 34 ℃/65% ambient air of/h is driven by 1 axial flow fan with 70W input power to form horizontal forced convection with the wind speed of 2m/s in the fin tube cavity of the fin tube cavity evaporative condensation absorber with the fin ratio of 15, so that when supplementary tap water at 25 ℃ is subjected to vertical circulating spray cooling in the fin tube cavity, negative pressure expansion falling film evaporation is carried out when the temperature is raised to 1 ℃ of the wet bulb temperature of the ambient air after heat absorption, 10.5kW condensation heat of a heat pump working medium in the tube is taken away by the temperature rise sensible heat and the evaporation latent heat of the heat pump working medium, the refrigerating performance coefficient EER in summer is doubled from 2.8 to 7 of an air source heat pump, and the input electric power of a compressor is only 1.5kW.
Claims (8)
1. A solar compound source heating, air conditioning and water heating machine with finned tube cavities for evaporating air is composed of a compressor (1); a gas-liquid separator (1-1); a four-way reversing valve (2); a use-side heat exchanger (3); a check valve (4); a high pressure reservoir (5); an economizer (6); an economizer expansion valve (6-1); a drying filter (7); a heat pump expansion valve (8); a fin tube cavity evaporative condensation absorber (9); an axial flow fan (10); a water distribution plate (11); a water accumulation plate (12); a drain valve (13); a circulating water pump (14); a check valve (15); an electric three-way valve (16); a fan coil (17); an expansion tank (18) with a manual valve; a filter (19); a hot water circulation pump (20); a hot water check valve (21); a hot water heater (22); a heat-insulating hot water tank (23); a hot water filter (24); a liquid level switch (25); a water-replenishing electric valve (26); a manual regulating valve (27); a hot water nozzle (28); a cooling circulation pump (29); a cooling check valve (30); a cooling filter (31); a cooling electric valve (32); a defrosting electric valve (33); the fin tube cavity evaporates the air solar composite source box (34); a dehydrator (35); a floating ball water replenishing device (36); a tap water electric valve (37), and the like, characterized in that: the heat pump working medium side of the heat exchanger at the use side (3), a tee joint, a check valve (4), a tee joint, a high-pressure liquid storage device (5), a tee joint, a cold passing side of an economizer (6), a drying filter (7), a heat pump expansion valve (8), the tee joint, the check valve (4), the tee joint, a fin tube cavity evaporative condensation absorber (9), the heat pump working medium side, the four-way reversing valve (2), the gas-liquid separator (1-1) and the compressor (1) are connected in series through a heat pump working medium pipeline to form a heat pump circulation loop; a tee joint, an economizer expansion valve (6-1), the economizer (6), the heat pump working medium side and a gas supplementing port of a compressor (1) are connected in series through a heat pump working medium pipeline to form an economizer gas supplementing and enthalpy increasing loop; the top of the fin tube cavity evaporative air solar composite source box body (34) is provided with an axial flow fan (10) which drives ambient air to pass through fins among tubes of fin tube cavity evaporative condensation absorbers (9) which are arranged in a vertical mode and face the sun in the southeast and the west, and the ambient air flows out from the upper portion after being collected to form the fin tube cavity evaporative condensation absorbers (9); fin tube cavity evaporative condensation absorbers (9) are respectively and vertically arranged on three sunny surfaces of the east, south and west, so that tracking-free absorption of solar radiation is realized in the morning, noon and afternoon of the local area; a water accumulation disc (12) with a horizontal inclination angle is arranged right below three fin tube cavity evaporative condensation absorbers (9) which are vertically arranged towards the sun surface in the southeast and the west, and a water outlet at the lowest inclination angle of the water accumulation disc is connected with a water discharge valve (13) through a water discharge pipeline to form a condensed water, defrosting water and defrosting water discharge loop; the circulating water pump (14) is connected with a check valve (15), a using side heat exchanger (3) through a circulating water pipeline in series, a circulating water side, an electric three-way valve (16), a parallel fan coil (17), a converging three-way valve, an expansion tank (18) with a manual valve, a filter (19) and the circulating water pump (14) to form a heating/air conditioning function circulating loop; the circulating water pump (14) is connected with a check valve (15), a use side heat exchanger (3) circulating water side, an electric three-way valve (16), a hot water heater (22) circulating water side, a confluence three-way valve, an expansion tank (18) with a manual valve, a filter (19) and the circulating water pump (14) in series through a circulating water pipeline to form a hot water functional circulating loop; the hot water circulating pump (20) is connected with a hot water check valve (21), a hot water side of a hot water heater (22), a heat preservation hot water tank (23), a water supplementing tee joint, a hot water filter (24) and the hot water circulating pump (20) in series through a hot water pipeline to form a hot water circulating heating loop; an upper liquid level switch (25) of the heat-preservation hot water tank (23) controls the opening of a water supplementing electric valve (26), and the outlet of the water supplementing electric valve (26) is connected with a water supplementing tee joint to form a water supplementing loop; a hot water outlet at the bottom of the heat-preservation hot water tank (23) is connected in series with a hot water tee joint, a manual regulating valve (27) and a hot water nozzle (28) through a hot water heat-preservation pipeline to form a hot water spraying loop; a cooling water outlet of the water accumulation disc (12) is connected in series with a cooling filter (31), a cooling circulating pump (29), a cooling check valve (30), a cooling electric valve (32), a switching tee joint, a water distribution tee joint and a water distribution disc (11) through a cooling pipeline to form an evaporative cooling hot water defrosting circulation loop; a hot water outlet at the bottom of the heat-preservation hot water tank (23) is connected in series with a hot water tee joint, a defrosting electric valve (33), a switching tee joint, a water distribution tee joint and a water distribution disc (11) through a hot water heat-preservation pipeline to form a hot water defrosting loop; axial fans (10) are uniformly arranged at the top of a fin tube cavity evaporated air solar composite source box body (34), three fin tube cavity evaporative condensation absorbers (9) which are arranged in the southeast and the west and face to the sun and absorb sunlight are vertically arranged, a closed cavity is arranged on the north of the fin tube cavity evaporative condensation absorbers to arrange a heat pump unit, and a water collecting disc (12) is arranged at the bottom of the fin tube cavity evaporative air solar composite source box body to form a fin tube evaporated air solar composite source; the fin tube cavity evaporative condensation absorber (9), the dehydrator (35) and the axial flow fan (10) form an air heat and mass exchange loop; the floating ball water replenishing device (36) is connected with an upper water pipeline through a tap water electric valve (37) and is used for replenishing water according to the water level of the water accumulating disc (12) to form a water replenishing loop.
2. The fin tube cavity evaporation air solar composite source heating air-conditioning water heater according to claim 1, characterized in that: the fin tube cavity evaporative condensation absorber (9) is a heat exchanger with 1 row to 10 rows of fin heat exchange tubes.
3. The fin tube cavity evaporation air solar composite source heating air-conditioning water heater according to claim 1, characterized in that: the fin pitch of the fin tube cavity evaporative condensation absorber (9) is 1mm to 9mm.
4. The fin tube cavity evaporation air solar composite source heating air-conditioning water heater according to claim 1, characterized in that: the surface of the fin tube cavity evaporative condensation absorber (9) is blackened; or a close adhesion visible light selective coating.
5. The fin tube cavity evaporative air solar composite source heating air-conditioning water heater according to claim 1, characterized in that: the number of the axial flow fans (10) is 1 to 40.
6. The fin tube cavity evaporation air solar composite source heating air-conditioning water heater according to claim 1, characterized in that: the fin tube cavity evaporative condensation absorber (9) is a red copper tube red copper fin; or stainless steel tube and stainless steel fin; or an aluminum pipe aluminum fin; or carbon steel tube carbon steel fins; or a copper tube aluminum fin.
7. The fin tube cavity evaporation air solar composite source heating air-conditioning water heater according to claim 1, characterized in that: circular holes with downward inner diameter of 0.1-5 mm are uniformly distributed at the bottom of the water distribution plate (11); or the bottom of the water distribution plate (11) is uniformly distributed with circular short pipes with downward inner diameter of 0.1-5 mm and length of 0.1-5 mm.
8. The fin tube cavity evaporative air solar composite source heating air-conditioning water heater according to claim 1, characterized in that: the axial flow fan (10) is a variable flow fan, wherein the normal flow is adopted for heat taking operation in winter, the doubled flow is adopted for heat releasing operation in summer, and the doubled flow is adopted for defrosting operation in winter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220643805.8U CN217560135U (en) | 2022-03-15 | 2022-03-15 | Fin tube cavity evaporation air solar composite source heating air conditioning water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220643805.8U CN217560135U (en) | 2022-03-15 | 2022-03-15 | Fin tube cavity evaporation air solar composite source heating air conditioning water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217560135U true CN217560135U (en) | 2022-10-11 |
Family
ID=83470926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220643805.8U Active CN217560135U (en) | 2022-03-15 | 2022-03-15 | Fin tube cavity evaporation air solar composite source heating air conditioning water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217560135U (en) |
-
2022
- 2022-03-15 CN CN202220643805.8U patent/CN217560135U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103453679B (en) | The control method of household wall-mounted flat solar heat-pump water heater | |
| CN109163471B (en) | Energy-saving comfortable type split heat pump air conditioning system and control method thereof | |
| CN108302838A (en) | A kind of heat-storage solar energy coupling air source heat pump system and its control method | |
| CN102914012A (en) | Solar energy and water-cooling air-cooling air-conditioning unit combined cold and hot domestic hot water integrated unit | |
| CN105135739A (en) | Multifunctional heat pump type evaporative condensing air-conditioning unit | |
| CN108775663B (en) | Indoor heat exchanger without fan and with built-in heat storage medium for air source heat pump air conditioner | |
| CN105716329A (en) | Direct-expansion type solar heat pump system | |
| CN202885144U (en) | Cooling and heating domestic hot water integrated machine unit combining solar energy and water cooling/air cooling air conditioning unit | |
| CN205119549U (en) | Multi -functional heat pump type evaporation formula condensation air conditioning unit | |
| CN106123396A (en) | The heat pump that a kind of solar energy heating/vaporizer is combined with finned evaporator | |
| CN103499163A (en) | Direct expansion type solar heat pump air conditioning system | |
| CN203454431U (en) | Household wall-hung flat plate solar thermal pump water heater | |
| CN102563973B (en) | Novel solar air source heat pump system and hot water production method | |
| CN217560135U (en) | Fin tube cavity evaporation air solar composite source heating air conditioning water heater | |
| CN106439990A (en) | Solar-energy-air-source combined type heat pump waterless heating system and method | |
| CN111156726A (en) | Air source heat pump system based on soil season-crossing heat storage defrosting and solar intermittent utilization and using method thereof | |
| CN2748843Y (en) | Solar energy and ground-source heat pump air conditioning and water heating apparatus | |
| CN108709273A (en) | Fin absorber air+sun multiple source heat pump three-way set | |
| CN205939816U (en) | Heat pump that solar energy collection evaporimeter and finned evaporator combine | |
| CN206073214U (en) | A kind of solar air source combined heat pump is without water heating system | |
| CN202648245U (en) | Novel solar energy air source heat pump system | |
| CN114777358A (en) | Fin tube cavity evaporation air solar composite source heating air conditioning water heater | |
| CN104566726A (en) | Novel household efficient static ice-making and indirect de-icing type cooling air conditioning system | |
| CN219674353U (en) | Fin tube cavity evaporative cooler air source heating air conditioner water heater | |
| CN211575592U (en) | Air source heat pump system based on soil seasonal heat storage defrosting and solar intermittent utilization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |