CN103148636A - Air-powered and solar-powered heat-accumulating heat pump system - Google Patents
Air-powered and solar-powered heat-accumulating heat pump system Download PDFInfo
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Abstract
The invention discloses an air-powered and solar-powered heat-accumulating heat pump system. A heat pump unit (11) in which an automatic control device (6), an evaporator (7) and a condenser (8) are arranged is connected with a heat accumulating array (2) in which a heat exchanger (1) and a geographical heat storing device (12) through a water segregator (3) and a water collector (10); the air-powered and solar-powered heat accumulating array (2) is formed by regularly arranging a plurality of solar-powered geographical heat storing devices (12) which are buried under the ground, and a basic heat accumulating unit consisting of air heat accumulating filling soil (14) outside the geographical heat storing devices (12); and the air-powered and solar-powered heat accumulating array (2) is taken as a heat source, so that an air-powered and solar-powered heat source is transformed into a stable heat source.
Description
Technical field
The present invention relates to relate to fluid heater or F25B heat pump technology or the device of F24H heat-generating device, especially air can solar heat-preservation formula heat pump.
Background technology
Heat pump techniques is the new energy technology that receives much attention in the whole world in recent years.Heat pump is a kind ofly can obtain low grade heat energy from natural air, water or soil, and through the electric power acting, providing can be by the device of people's high-grade heat energy used.What the low-temperature heat source of heat pump was the most frequently used is surrounding medium, as the heat of air or the surface water, and the heat of waste vapour, waste water and the waste oil etc. of also discharging in available underground heat or production process.The thermal source of heat pump utilization is divided into two classes: the one, and the nature thermal source is as underground water, soil, air, solar energy; Another be produce or life in heat extraction, as the heat extraction of municipal sewage, Space Heating for Waste Heat of Power Plant, steel mill used heat, waste incineration factory.These thermals source have plenty of continuous, endlessly namely, and as underground water, soil, air, municipal sewage, Space Heating for Waste Heat of Power Plant etc.; Have plenty of discontinuous, namely desultory, as solar energy, steel mill used heat, waste incineration heat extraction etc.Have plenty of stablely, namely temperature is substantially constant, as underground water, soil; Have plenty of unsettledly, along with seasonal variations is very large, especially the severe cold area temperature Change is violent as air.In addition, thermal source all has " energy ladder ", and the thermal source that temperature is higher has high-quality, and the thermal source quality that temperature is lower is also lower.
Heat pump can be divided into air source heat pump, water resource heat pump, earth source heat pump or water earth source heat pump according to heat sink.Wherein, net for air-source heat pump units generally is comprised of several parts such as compressor, evaporimeter, expansion valve, filter, fluid reservoir, condenser, storage tanks.The air source heat pump operation principle namely, the refrigerant of low-temp low-pressure gaseous state becomes the high pressure-temperature gaseous state through compressor.The heat that the compression function of compressor transforms is Q2.The gaseous coolant of HTHP and water carry out heat exchange, and the refrigerant of high pressure is cooled, is condensed into liquid state at normal temperatures.In this process, refrigerant is emitted heat and is used for heating water, water is heated up become hot water.
Air source heat pump is to utilize electric energy drive compression machine, carries out heat exchange with air, summer refrigeration, winter heating.But the function of winter heating is generally as miscellaneous function.The air source heat pump standard condition is 7 ℃, and environment temperature is below 7 ℃, and heating efficiency will descend, and makes the conventional unit of cold-producing medium in-5 ℃ of left and right, basically can't work.This is that the use of air source heat pump is that limitation, regional is arranged because various places temperature has a long way to go.
Heat pump utilizes air-source to refer to utilize airborne energy.When air themperature was hanged down to a certain extent, heat pump can't utilize air-source, and low temperature can make heat pump lower efficiency.
The precedent that uses building and heating is got, stored to published warm air collection when winter temperature is higher, its thinking core comprises two aspects: the one, utilize the higher air of temperature, namely collect airborne heat in higher period of temperature, and temperature is closed the air acquisition system when low; The 2nd, the air heat energy of collecting is stored, when temperature is low, it is extracted for indoor heating; The deficiency that this heat accumulation mode exists comprises: the available warm air time in winter is too short; Thermal store is too little, need to be in building layout thermal store as much as possible; The time that stores is very short, only tens hours or several days time; Even what collect is warm air, but temperature is not high, require to also have certain gap apart from the comfortableness of indoor heating temperature.
Usually solar heat pump has two Major Technologies: the one, and with the low-temperature heat source of solar energy as compression heat pump, then promote water temperature by heat pump and be transported to user side; Another is with the power of solar energy as absorption heat pump, and utilizes other low-temperature heat source to realize refrigerating/heating.Because there is the unstability of intermittent, overcast and rainy snow round the clock in solar energy and some row problems such as energy-flux density is low, the even running of heat pump is caused very adverse influence, so pay much attention to the research and development of solar heat-preservation both at home and abroad.The problem of solar heat-preservation technical research mainly comprises the solar heat-preservation mode, as research, regenerative apparatus research, the research of heat exchanger and the research of accumulation of heat environment etc. of sensible heat accumulation of heat, latent-heat storage and chemical heat accumulation etc.Sun heat storage technology can be used for the aspects such as heat pump, heat generating system and drying materials, and the use object is different, and the heat storage type method of concrete research has also institute's difference.For intermittence and the unreliability that solves solar energy, by regenerative apparatus is set, solar thermal energy is stored, as the low-temperature heat source of heat pump, can be used for winter heating and use after heat pump heats up.The heat accumulating type solar heat pumping system can be divided into from accumulation of heat time length: diurnal storage formula solar energy heat pump system and long-term heat accumulating type solar heat pumping system.Wherein, long-term heat accumulating type solar heat pumping system refers to the heat pump take the long-term accumulation of heat of solar energy as thermal source.Long-term accumulation of heat refers to that the thermmal storage time is some months, several season or 1 year.The long-term required solar thermal energy storage time of heat accumulating type solar heat pumping system is some months or several season.Its difficult point and the problem that needs to solve mainly contain the following aspects:
The one, after long-time heat accumulation, guaranteeing has enough amount of stored heat.Matter of utmost importance is the heat loss problem that solves the long-term accumulation of heat of solar energy.No matter use above-mentioned which kind of heat storage type, as water tank accumulation of heat low-temperature heat accumulating, regenerator temperature is at 50 ℃ of left and right, paraffin low-temperature heat accumulating, melting temperature is at 40～65 ℃ etc., if heat loss is slightly large, during the thermmal storage of several thousand hours, the heat of storage will vanish.If use for another example mixed earth high-temperature heat accumulation, which kind of provision for thermal insulation is regenerator temperature so no matter take 400 ℃ of left and right, do not cross how long heat will lose is over.So the difficult point that at first solves is to reduce the accumulation of heat heat loss, next is to increase the increment of accumulation of heat, to guarantee possessing enough heat storage capacities when heat pump uses.
The 2nd, it is large that amount of stored heat is wanted.Long-term solar heat-preservation formula heat pump is mainly used in the use object that thermic load is higher, the total amount of heat demand is larger, as the heating process in building and heating, production process etc.This class uses the required total amount of heat of object very large, and especially to those building heating, the total amount of heat demand will be hundreds of thousands million Jiao, millions of million Jiao, even more heat.Therefore, the mode such as similar use water tank accumulation of heat can not be satisfied the demand.
The 3rd, cost is low.If take the unit accumulation of heat cost (representing with unit/MJ) of mixed earth accumulation of heat as benchmark, the paraffin accumulation of heat is about 10 times that mix the earth accumulation of heat, the nano material accumulation of heat is more than 100 times.Namely use mixed earth accumulation of heat for civil buildings heating to use its cost be also very high, common people are beyond affordability.
The 4th, do not take space.Nowadays, land price is more and more higher, and room rate one rises and rises again, several thousand yuan easily of the construction areas of each square metre, and even several ten thousand yuan, to take space be very necessary so save, as water tank is placed on the roof, or it is inferior that regenerative apparatus is embedded in ground.
It is high that five reliabilities are wanted.Long-term solar heat-preservation only possesses higher reliability, could provide safety, stable and continuous heat energy for heat pump, and guarantee is such as being the reliability of operation such as building and heating.
The 6th, will grow service life.After having installed a long-term solar heat-preservation formula heat pump, it needs the service life more than 20 years at least, and except source pump, be the principal element that affects the whole system life-span service life of heat-storing material and regenerative apparatus.
This system be according to solar radiation quantity in the characteristics that the spring, summer, autumn and winter changes throughout the year, take " with strong mend weak " form.The solar heat-collection daylighting area of the long-term required installation of heat accumulating type solar heat pumping system is only 1/tens of diurnal storage formula solar energy heat pump system, and more stable, more reliable, more saving.
It is relevant that public technology is less, as:
The absorption-compression formula heat pump that Chinese patent application thermal source more than 201,110,080,805 1 kinds drives includes condenser, evaporimeter, generator, absorber, solar thermal collector, solution heat exchanger, working medium pump, hot water circulating pump, low-temperature receiver circulating pump, compressor, choke valve, pressure-reducing valve, air conditioning terminal, heating end, low-temperature receiver end and the first to the 22 magnetic valve.
Chinese patent application 201020548133 solar energy-air dual-heat-source heat pump water heaters, comprise compressor, heat exchanger, hot water storage tank, choke valve, hot water heat exchange coil and connecting line, heat exchanger is the two thermal source heat exchangers of solar energy-air, interface of the two thermal source heat exchangers of solar energy-air and an interface of hot water heat exchange coil are connected by compressor, another interface of the two thermal source heat exchangers of solar energy-air and another interface of hot water heat exchange coil are connected by choke valve, hot water heat exchange coil is located in hot water storage tank, the two thermal source heat exchangers of solar energy-air comprise heat exchanger tube, the fin that combines with the heat exchanger tube outer wall, and the solar radiation absorbing coating on heat exchanger tube and fin outer surface.
Air energy heat pump technology and the heliotechnics limitation because self existing, determined that frequency conversion air energy heat pump system and solar water heating system always need to join auxiliary heating, and the air energy heat pump system can with the use of uniting of solar energy system, can make up mutually the deficiency of self, improve resource utilization, reach energy-saving effect to greatest extent, make the operating cost of hot water system drop to minimum.The principle of frequency conversion air energy heat pump and solar energy system cooperation is: take the air energy heat pump system as main, solar energy system is auxiliary thermal source, but will preferentially adopt solar energy on operation is controlled, and is taken full advantage of.Heating Season: the DC frequency-changing air energy heat pump has precedence over the water supply tank water heating; system heats together by the water supply tank combined solar; after hot water temperature in water supply tank reaches design temperature; the hot water schema recommendation is set 50 ℃; heating system is shut down or switched to air energy heat pump, and the high-temperature-hot-water in water supply tank automatically switches to the thermal source that buffer tank heats as supply floor heating or fan coil.Due to water supply tank have air can and two kinds of thermal source water heatings of solar energy, sun-drenched the time temperature rise very fast, DC frequency-changing air energy heat pump shutdown or switch to heating system after water tank temperature to 50 ℃.At this moment, water supply tank is the heat of recycling storage solar absorption always also, when the temperature control component detection to the temperature of water tank the inside during higher than setting value, the temperature control assembly temperature can be set between 0～75 ℃ of scope, consider the temperature that water tank will keep the user to take a shower, electric two-way valve is opened in suggestion temperature control module sets to 50 ℃ left and right, the free thermal source that the hot water circuit in water supply tank is heated as floor heating or fan coil in the buffer tank.Reduce thus the output that heats of air energy heat pump, reduce the compressor operation frequency, improve the COP value, save user's operating cost.Refrigeration season: DC frequency-changing. air energy heat pump supply user air conditioner end equipment refrigeration, the domestic hot-water is mainly by the solar energy system supply.At the cloudy day or rain and preferentially to be heated together in conjunction with solar energy by the DC frequency-changing air energy heat pump when not having sunlight to absorb, satisfy domestic hot-water's demand.Need close water supply tank temperature control assembly in summer
Power supplyOr it is the design temperature of temperature control assembly 0 ℃, in order to avoid the circulatory system work that in the energising situation, the temperature control assembly is controlled, high-temperature-hot-water in water supply tank is recycled to the cold water of the mixed cryogenic refrigeration of ginseng in buffer tank, thereby affects the refrigeration of coil pipe of air-conditioner blower end.Conditioning in Transition Season: spring, autumn transition season, generally need not heat, freeze, only need provide the user domestic hot-water.
Summary of the invention
The purpose of this invention is to provide air energy solar heat-preservation formula heat pump, reduce the heat loss of the long-term heat accumulation of solar energy, do not take space, reduce unit accumulation of heat cost, improve reliability and the service life of long-term heat accumulation, realize that air can be in cold district long-term a large amount of accumulation of heats in winter.
The objective of the invention is to realize by following technical measures: the source pump that self-con-tained unit, evaporimeter and condenser are installed is connected and installed with the accumulation of heat array of heat exchanger and geographical heat-storing device by water knockout drum and water collector.
The invention has the beneficial effects as follows: air can solar heat-preservation array 2 consist of by a plurality of outer air accumulation of heat filling soils 14 of the geographical heat-storing device 12 of underground solar energy and geographical heat-storing device 12 that are embedded in that basic thermal storage unit is regularly arranged to be consisted of, take air energy solar heat-preservation array 2 as thermal source, make air be converted into stable thermal source by solar source.Can provide enough heats for heat pump, satisfy better the requirement of 11 pairs of thermals source of source pump, collect the air heat energy that is fit to the source pump serviceability temperature throughout the year, improve temperature, can continue to satisfy the high efficiency operation of source pump, effectively guarantee security of system stable operation, simple for structure, decrease cost, production efficiency is high, utilize simultaneously air-source and solar radiation heating performance coefficient COP and the operation stability of Teat pump boiler obviously to be improved as source heat pump heat, system is formed more simplify.
Description of drawings
Fig. 1 is structural representation of the present invention
Fig. 2 is the structural representation of thermal storage unit in the present invention
Reference numeral comprises: heat exchanger 1, accumulation of heat array 2, water knockout drum 3, water circulating pump 4 evaporates water valve 5, self-con-tained unit 6, evaporimeter 7, condenser 8, evaporation water intaking valve 9, water collector 10, source pump 11, geographical heat-storing device 12, heat storage units border 13, filling soil 14, insulating 15, solar heat-preservation body 16.
The specific embodiment
Further illustrate below in conjunction with drawings and Examples.
As shown in Figure 1, the source pump 11 that self-con-tained unit 6, evaporimeter 7 and condenser 8 is installed is connected and installed with the accumulation of heat array 2 of heat exchanger 1 and geographical heat-storing device 12 by water knockout drum 3 and water collector 10.
In aforementioned, be connected with self-con-tained unit 6 between evaporimeter 7 and condenser 8 on source pump 11, evaporimeter 7 sides by water circulating pump 4 be connected water valve 5 and connect water knockout drums 3, connect water collectors 10 in evaporimeter 7 sides by evaporation water intaking valve 9.
In aforementioned, water knockout drum 3 is connected with water collector respectively and is connected heat exchanger 1 in accumulation of heat array 2 by pipeline.Water knockout drum 3 and water collector 10 comprise one or more levels water knockout drum and water collector, its effect is that heat-transfer working medium is divided into two-way or multichannel, extract in each regenerative apparatus outside the higher heat of temperature and each regenerative apparatus respectively and extract the lower heat of temperature, and be mixed into the water source temperature that source pump is moved under better operating mode.
In aforementioned, heat exchanger 1 comprises heat exchanger and the outer heat exchanger that is used for the outer heat of extraction element of solar heat-preservation body 16 that is used for heat in extraction element in solar heat-preservation body 16.The heat-transfer working medium of inflow heat exchanger 1 absorbs heat from accumulation of heat array 2, and the evaporimeter 7 of flowing through provides low-grade heat for source pump 11.
In aforementioned, be used for overcoming by one or more water circulating pump 4 resistance that pipe-line system, heat exchanger and miscellaneous equipment form, for source pump is carried necessary heat-transfer working medium flow.
As shown in Figure 2, air can solar heat-preservation array 2 consist of by a plurality of outer air accumulation of heat filling soils 14 of the geographical heat-storing device 12 of underground solar energy and geographical heat-storing device 12 that are embedded in that basic thermal storage unit is regularly arranged to be formed, several, tens or more thermal storage unit form the heat storage of matrix form.Accumulation of heat array 2 is air energy solar heat-preservation battle array, wherein, the thermal storage unit middle part is geographical heat-storing device 12, in geographical heat-storing device 12 peripheries, heat storage units border 13 is arranged, between geographical heat-storing device 12 and heat storage units border 13, filling soil 14 is arranged, geographical heat-storing device 12 is made of insulating 15 parcel solar heat-preservation bodies 16.The interior storage solar energy of the thermal storage unit geographical heat-storing device 12 in middle part, and in heat storage units border 13 and the filling soil 14 stored air energy between geographical heat-storing device 12 outer walls, but thermal storage unit not only stored air can but also can store solar energy, can store more heat energy under the thermal storage unit temperature field interacts.In system, accumulation of heat array 2 plays a part to store solar thermal energy and air heat energy on the one hand, plays a part on the other hand source pump 4 low level heat energies, and it is the basis of whole system.
In aforementioned, as embodiment, the high 3m of the geographical heat-storing device 12 of solar energy, be about 4m, wide approximately 4m, be comprised of steel construction and heat-insulation layer, volume is 50m approximately
3, volume is 45m approximately
3Be embedded in below frozen soil layer, have corrosion resistance.Has certain anti-pressure ability.
In aforementioned, two adjacent thermal storage units have a public heat storage units border 13.Thermal storage unit is that the thermodynamic system by two sealings consists of.The buried hold over system of solar energy that is comprised of geographical heat-storing device 12 and solar heat-preservation body 16 grades, another air that is the outer filling soil 14 of geographical heat-storing device 12 consists of can hold over system.Because air can hold over system surrounds the solar heat-preservation system, the solar heat-preservation temperature is higher than its boundary temperature, discharge air heat energy at solar heat-preservation system boundary place, so solar heat-preservation system boundary temperature is to be delivered to heat and the coefficient result of air heat energy amount of stored heat outside the border by the solar heat-preservation system.Air energy hold over system boundary temperature is suitable with the natural soils temperature.This reciprocation makes border that air can hold over system become the common boundary of two systems, and the thermal loss of two systems all is delivered to extraneous by this common boundary.Therefore, the version that can hold over system surrounds the solar heat-preservation system of the air in the present invention can reduce the solar heat-preservation loss.
Under the solar heat-preservation and air energy accumulation of heat effect of thermal storage unit, make public boundary form " hot wall " effect.So-called " hot wall " effect, namely heat conducting physical effect, refer to that the temperature of public boundary is apparently higher than the temperature on individual system border.In thermal storage unit, the solar heat-preservation temperature is more much higher than air energy regenerator temperature, the solar heat-storing device outside wall surface is heat release place of air energy, this place's temperature is higher than boundary temperature, therefore hot-fluid in the system to outer transmission, to collision, making at the interface, temperature raises the hot-fluid of adjacent thermal storage unit at the public boundary place; In addition, the distance between adjacent two unit is nearer, and heat passage is narrower, and heat " accumulation " is more, causes that temperature is higher at the interface." hot wall " effect of accumulation of heat array 2 has many-sided benefit to accumulation of heat: improved amount of stored heat, hold over system temperature at the interface is higher, and intrasystem thermograde is less, and amount of stored heat is larger; Reduced heat loss, hold over system temperature at the interface is higher, and heat loss is less; Be arranged in required large-scale accumulation of heat array according to certain rule, can satisfy large-scale heat pump heat distribution system to the needs of high-quality thermal source.
In the present invention, can solar heat-preservation have more uniform temperature field in order to guarantee air, geographical heat-storing device 12 be laterally equidistantly arrangement with longitudinal pitch.Accumulation of heat array 2 is arranged in and can utilizes in thermal boundary, this can utilize thermal boundary to be made of the outermost heat storage units of accumulation of heat array 2 border 13, must ensure certain spacing between geographical heat-storing device 12, the size of this spacing needs the object according to the use of air energy solar heat-preservation formula heat pump, chooses as civil buildings heating, oil pipeline heating and other commercial Application etc.In normally used civil buildings heating, geographical heat-storing device 12 spacings of the interior arbitrary neighborhood of accumulation of heat array 2 are 5m approximately.
In the present invention, according to the difference of using object, system need to configure dissimilar source pump 4.Need configure underground loop-type water source heat pump units 4 as the system at the severe cold area building heating, the oil pipeline heating system need to configure high temperature heat pump unit 4 etc. for another example.
In aforementioned, solar heat-preservation body 16 is hot water storage tank, the mixed earth of accumulation of heat, accumulation of heat paraffin, heat storage inorganic hydrated salt, accumulation of heat ovum gravel, the chemical heat accumulation device that comprises ammonia heat chemistry hold over system and accumulation of heat nano material.
A, water tank accumulation of heat.Be stored in water in water tank carry out solar heat-preservation be use the earliest, mode the most widely.The existing advantage of water tank accumulation of heat also has shortcoming, and advantage is that the specific heat of water appearance is larger, and heat storage capacity is strong, and the cost of water is very low, and water tank processing is simple, easy to install etc.Shortcoming is that the volume of water tank is less, and the regenerator temperature of water is lower, usually 50 ℃ of left and right, causes total amount of stored heat less; Water tank is laid and is taken space, and the interior space such as basement especially is because construction cost is higher, so cause initial cost higher; If water tank is placed in the roof, be in atmospheric environment, because the temperature Change amplitude is very large, especially at severe cold area, the highest temperature and the lowest temperature cause the heat loss of water tank accumulation of heat very large about 38～-30 ℃ of scopes, can't use in the winter time etc.
B, mixed earth accumulation of heat.The OM sunlight system house that the mixed earth heat storage type that occurs the earliest is day the design.It is that the mixed earth floor of a kind of use is as the solar heat-preservation system of heat storage.By solar heat collector added hot-air and introduce ventilation shaft mixed earth floor under outdoor winter, and the mixed earth floor of heating also stores solar thermal energy for heating at night.The design regenerator temperature is the mixed earth solar heat-preservation body 16 of 400 ℃, long 8.6m, wide 1.3m, high 1.7m, and whole device length is 10m.
C, paraffin accumulation of heat.Because business is more cheap with paraffin, thermal storage density is moderate, and melting range is larger, and chemically stable is without phase transformation separation etc., so be also a kind of heat-storing material commonly used.It is that three kinds of paraffin of 44 ℃, 55 ℃, 64 ℃ are contained in and are made into regenerative apparatus in square or circular container and carry out solar heat-preservation that Farid uses fusing point.
D, inorganic hydrated salt accumulation of heat.Low-temperature heat accumulating also uses inorganic hydrated salt to be heat-storing material usually, and being contained in can be corrosion-resistant, is made into regenerative apparatus in the container as plastic plate etc. and carries out solar heat-preservation.
E, the accumulation of heat of ovum gravel.Adopting the accumulation of heat of ovum gravel is also one of heat storage type the earliest.As filling ovum gravel in the building foundation, utilize the space between the ovum gravel by hot blast, solar thermal energy is sent into ovum gravel bed and stored, be indoor heating with ovum gravel bed.Adopt this solar heat-preservation mode need to be by building orientation, environment, inner space, external body, construction material and Structural Tectonics are carried out appropriate design, make that it can be collected in the winter time, keeps, storage, distribution solar thermal energy, thereby solve the heating problem of building.The accumulation of heat of ovum gravel bed generally is applicable to solar energy resources hot summer and warm winter region preferably, or single single family house of cold district, as villa, grange etc.Its advantage is because the heat-storing material that uses is the ovum gravel, so the accumulation of heat cost is lower.Shortcoming is to need building to have good heat-insulating property, especially needs to use special windowpane and mounting process; Need to install the large glass lighting roof, in order to improve daylighting area; Need to carry out to building the integrated design of solar building; When the coldest, if a little less than solar radiation, can cause the indoor heating temperature lower than normal temperature.
F, chemical heat accumulation.As ammonia heat chemistry hold over system.This system has used the cavate receiver, comprising the reaction tube of 20 ferrum-based catalyst materials, collects solar energy with concentrating collector, stores solar energy by the ammonia thermal chemical reaction.To have an initial cost larger due to chemical heat accumulation, and chemical reaction is violent, technical sophistication, and the shortcoming such as whole efficiency is low is so seldom be used as solar heat-preservation.
G, nano material accumulation of heat.When the size of certain material reaches nanoscale, can greatly improve the heat-transfer capability of fluid, so the research of nanometer heat-storing material also has been subject to attention.As the composite that forms with one or more nanometer materials, its preparation method one is the huge capillary force that adopts material with nano-void structure to have, and the latent-heat storage material is adsorbed onto in nano-void, forms nano combined heat-storing material; Another is to form nucleocapsid structure or the filling structure of Nano grade by chemical reaction, and is combined into heat-storing material with heat-storing material.Nanometer by material can improve heat storage capacity, and strengthens heat-transfer capability, is one of direction that will need from now on further strengthening research.
In the present invention, specific implementation method is:
1) earth work.As foundation ditch excavation, heat-storing material filling and backfill soil etc.
2) regenerative apparatus is installed.Mat formation as regenerative apparatus installation, end face warming plate etc.
3) heat exchanger is mated formation.As bottom surface heat exchanger, peripheral heat exchanger, the interior heat exchanger of device etc.
4) pipe-line system is installed.As trunk line laying, pipe insulation and inspection shaft construction etc.
5) system equipment is installed.As minute, water collector, conduit fittings and water pump installation etc.
In the present invention, take air energy solar heat-preservation array 2 as thermal source, satisfy better the requirement of 11 pairs of thermals source of source pump:
1) can satisfy heat pump to the requirement of heat source temperature.
The buried accumulation of heat of solar energy can reach higher regenerator temperature, and as 70 ℃ of left and right, air energy soil thermal storage temperature can be mixed into the needed optimum water temperature of heat pump about 20～30 ℃ of left and right by heat exchanger.Can be according to the real needs of the different fields of employment of heat pump, the air energy accumulation of heat ratio that the solar heat-preservation in reasonable adjusting device and device are outer satisfies the different specific requirements of using objects.
2) make air be converted into stable thermal source by solar source.
Because the heat source temperatures such as air energy and solar energy all exist periodically and intermittence, directly utilize to be difficult to provide stable heat for heat pump, and air energy solar heat-preservation formula thermal source solve this problem, make it to be converted into stable thermal source.
3) make and to utilize the place of air heat energy to become possibility.
At cold district and severe cold area, when temperature drops to necessarily low the time, air-source just can't be utilized by air source heat pump.And air can solar heat-preservation the formula thermal source solve this problem, the air heat energy by collecting suitable season also stores, and uses special-purpose source pump, makes and can not utilize the place of air heat energy to become possibility.
4) decrease cost.
Owing to utilizing separately solar heat-collection and heat-accumulation to need larger investment, be difficult to be accepted by market especially ordinary people, and with air heat energy and solar energy composite utilization, can the decrease cost, be conducive to regenerative resource and enter huge numbers of families.
5) can provide enough heats for heat pump.
Source pump has broader operating temperature range, and air can not only can provide optimum water temperature and enough heats for source pump by solar heat-preservation formula thermal source, even when the off-target heat source temperature, still can provide enough heats for source pump.Therefore, the additional auxiliary thermal source that does not need other.
6) opened up new technological approaches for other thermal source utilization.
Other thermal source, as the used heat that discharges in process of factory production, building heat extraction, waste incineration heat extraction etc., these heat extractions often have the characteristics such as intermittence, inhomogeneities and unstability, and can collect to store becomes the heat accumulating type thermal source, effectively utilize by heat pump.
The present invention utilizes the time of storage longer, and the thermal store that volume is larger, heat storage capacity is stronger is collected the air heat energy that is fit to the source pump serviceability temperature throughout the year, improves temperature, can continue to satisfy the high efficiency operation of source pump.
Claims (8)
- Air can solar heat-preservation the formula heat pump, it is characterized in that: the source pump (11) that self-con-tained unit (6), evaporimeter (7) and condenser (8) are installed is connected and installed with the accumulation of heat array (2) of heat exchanger (1) and geographical heat-storing device (12) by water knockout drum (3) and water collector (10).
- 2. air as claimed in claim 1 can solar heat-preservation formula heat pump, it is characterized in that, be connected with self-con-tained unit (6) between the upper evaporimeter (7) of source pump (11) and condenser (8), evaporimeter (7) side by water circulating pump (4) be connected water valve (5) and connect water knockout drum (3), connect water collector (10) in evaporimeter (7) side by evaporation water intaking valve (9).
- 3. air energy solar heat-preservation formula heat pump as claimed in claim 1, is characterized in that, water knockout drum (3) is connected 10 with water collector) connect the interior heat exchanger (1) of accumulation of heat array (2) by pipeline respectively.
- 4. air as claimed in claim 1 can solar heat-preservation formula heat pump, it is characterized in that, air can the solar heat-preservation array (2) consist of by a plurality of outer air accumulation of heat filling soils (14) of the geographical heat-storing device of underground solar energy (12) and geographical heat-storing device (12) that are embedded in that basic thermal storage unit is regularly arranged to be formed.
- 5. air as claimed in claim 4 can solar heat-preservation formula heat pump, it is characterized in that, accumulation of heat array (2) is air energy solar heat-preservation battle array, wherein, the thermal storage unit middle part is geographical heat-storing device (12), in geographical heat-storing device (12) periphery, heat storage units border (13) is arranged, between geographical heat-storing device (12) and heat storage units border (13), filling soil (14) is arranged, geographical heat-storing device (12) is made of insulating (15) parcel solar heat-preservation body (16).
- 6. air energy solar heat-preservation formula heat pump as claimed in claim 4, is characterized in that, two adjacent thermal storage units have a public heat storage units border (13).
- 7. air energy solar heat-preservation formula heat pump as claimed in claim 1, is characterized in that, geographical heat-storing device (12) spacing of the interior arbitrary neighborhood of accumulation of heat array (2) is 5m approximately.
- 8. air as claimed in claim 1 can solar heat-preservation formula heat pump, it is characterized in that, solar heat-preservation body (16) is the mixed earth of hot water storage tank, accumulation of heat, accumulation of heat paraffin, heat storage inorganic hydrated salt, accumulation of heat ovum gravel, the chemical heat accumulation device that comprises ammonia heat chemistry hold over system and accumulation of heat nano material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013101031106A CN103148636A (en) | 2013-03-28 | 2013-03-28 | Air-powered and solar-powered heat-accumulating heat pump system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101031106A CN103148636A (en) | 2013-03-28 | 2013-03-28 | Air-powered and solar-powered heat-accumulating heat pump system |
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| CN103148636A true CN103148636A (en) | 2013-06-12 |
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| CN2013101031106A Pending CN103148636A (en) | 2013-03-28 | 2013-03-28 | Air-powered and solar-powered heat-accumulating heat pump system |
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Application publication date: 20130612 |