CN204593893U - Separating heat tube type solar heat pump composite heater - Google Patents
Separating heat tube type solar heat pump composite heater Download PDFInfo
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- CN204593893U CN204593893U CN201520029494.6U CN201520029494U CN204593893U CN 204593893 U CN204593893 U CN 204593893U CN 201520029494 U CN201520029494 U CN 201520029494U CN 204593893 U CN204593893 U CN 204593893U
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- 239000002131 composite material Substances 0.000 title claims abstract description 13
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- 238000010521 absorption reaction Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 230000005428 wave function Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a kind of separating heat tube type solar heat pump composite heater, comprise compressor, condenser, throttling arrangement, evaporimeter and attemperater, described condenser is placed in described attemperater, described compressor output end is connected with condenser, described condenser is connected with evaporimeter by throttling arrangement, and described evaporimeter is connected with compressor input; Described evaporator outlet is connected the first branch line of a check valve with arranging between condenser inlet; Described condensator outlet is connected the second branch line of a check valve with arranging between evaporator inlet.The utility model advantage is: can increase substantially water-heater efficiency, simple and reliable for structure, and compared with air source hot pump water heater, have the better white ability to work of band without evaporation collecting plate than Fin and tube evaporator, winter, ability to work was stronger.
Description
[technical field]
The utility model relates to field of water heaters, particularly a kind of separating heat tube type solar heat pump composite heater.
[background technology]
At present, in Teat pump boiler and solar water heater industry, the ability to work of water heater how is improved, the problems such as further raising system effectiveness, prevents low-temperature frozen from damaging, and solution volume is excessive, solar energy and air source heat pump being combined, is the common objective needs of two industries.Current, generally in order to reach better result of use, be that two kinds of water heaters are respectively filled a set of; But cost is higher like this, and the low-temperature working ability do not possessed, cloudy day in the winter time and night, solar energy cannot work, and air source heat pump also will reduce ability to work significantly due to the reason such as low temperature and frosting.How Teat pump boiler and solar water heater to be combined, be the target of energy conservation person always.The directly expanding solar heat-pump water heater of early stage proposition, be exactly design in this context, but because directly expanding solar heat-pump water heater only has heat pump mode one, and the contradiction that cannot solve because fixing evaporator area and solar energy irradiation intensity change, configuration account for and is just difficult to summer adapt to winter.In use simultaneously, this design does not really utilize solar energy efficiently, on the contrary can due to solar radiation stronger time cause compressor return air overheated, affect the reliability of equipment use.Although so directly expanding solar heat-pump water heater has promoted many decades, still do not reached sizable application so far.
[utility model content]
The purpose of this utility model is the deficiency existed for above-mentioned prior art, provides a kind of energy-conserving and environment-protective, and fully can ensure the separating heat tube type solar heat pump composite heater that user uses.
To achieve these goals, the utility model is achieved in that separating heat tube type solar heat pump composite heater, comprise compressor, condenser, throttling arrangement, evaporimeter and attemperater, described condenser is placed in described attemperater, described compressor output end is connected with condenser, described condenser is connected with evaporimeter by throttling arrangement, and described evaporimeter is connected with compressor input, forms a recuperated cycle;
Described evaporator outlet is connected the first branch line of a check valve with arranging between condenser inlet, described second branch line between evaporator outlet and condenser inlet with compressor place pipeline in being arranged in parallel.
Described condensator outlet is connected the second branch line of a check valve with arranging between evaporator inlet, condensator outlet described in described second branch line and evaporator inlet and throttling arrangement place pipeline are in being arranged in parallel.
Described check valve is gravity-held check valve.
Described evaporimeter can be solar energy evaporation heat collector, can effectively utilize solar energy to heat.
Separating heat tube type solar heat pump composite heater has solar energy pattern and heat pump mode two mode of operations:
When solar energy work pattern, compressor cuts out, check valve and check valve are opened, working medium is evaporated to gaseous state obtain heat in solar energy evaporation heat collector after and rises, through with the check valve of compressor parallel after, enter condenser release heat and be condensed into liquid state, under the effect of self gravitation, flowing to solar energy evaporation heat collector continuation heat absorption through check valve and vaporize and rise.
When device works with heat pump mode, compressor start runs, close voluntarily under the larger pressure reduction that check valve and check valve are formed at compressor operating, working medium is vaporized absorb heat in solar energy evaporation heat collector after, be inhaled into the gaseous working medium that compressor compresses is HTHP, enter condenser heat rejection again and be condensed into liquid state, then through throttling arrangement reducing pressure by regulating flow, enter in solar energy evaporation heat collector vaporization of again absorbing heat.
The utility model relates to a kind of air energy heat pump technology and separate heat pipe solar water heater technology of adopting and carries out the device heated, two energy-saving water heaters are combined, make full use of solar energy, and can heat with heat pump cycle with night overcast and rainy, to ensure the use of user, native system utilizes separate heat pipe, work with solar energy heating mode when sunlight is sufficient, and make itself and heat pump interconnected by two check valves, when sunlight is unfavorable for solar energy work pattern, can start working with heat pump mode.The utility model is different from the solar heat pump installation of original design, it is the solar heat pump being original design, regardless of solar energy state, all must start compressor to realize heating, the utility model then can the difference of apparent sun energy situation, and use different heating modes, namely solar energy heating pattern and heat pump pattern heat, when solar energy work pattern, the electric parts such as compressor, magnetic valve does not work.The utility model can increase substantially water-heater efficiency, simple and reliable for structure, and compared with air source hot pump water heater, have the better white ability to work of band without evaporation collecting plate than Fin and tube evaporator, winter, ability to work was stronger.
Compared with prior art, the advantage that the utility model has and Advantageous Effects as follows: there is solar energy mode of operation and heat pump mode of operation, can be the same with conventional solar boilers when sunlight conditions is better, not power consumption and solar energy evaporation heat collector receive heat be delivered to condenser, the heating efficiency under this pattern be infinity; Again can with heat pump mode work when solar energy condition is not enough, simultaneously because evaporation heat collector has larger white capacity, it is made to be with white ability to work extremely strong, during defrosting, frost layer departs from solar energy evaporation collecting plate with solid forms, frost layer must be melted the energy for liquid state consumes when decreasing air source heat pump defrosting, and have an opportunity obtain solar energy irradiated heat and improve evaporating temperature, efficiency is far above traditional air source heat pump.
[accompanying drawing explanation]
Fig. 1 is the system construction drawing of the utility model separating heat tube type solar heat pump composite heater;
Fig. 2 is the cross-sectional structure schematic diagram 1 of solar energy evaporation heat collector;
Fig. 3 is the cross-sectional structure schematic diagram 2 of solar energy evaporation heat collector;
Fig. 4 is the cross-sectional structure schematic diagram of solar energy evaporation heat collector band ultrasonic wave function fixture;
Fig. 5 is the structural representation of ultrasonic wave function fixture;
Fig. 6 is the installation diagram of solar energy evaporation heat collector;
Fig. 7 is the top view of the heat collection mechanism of solar energy evaporation heat collector;
Fig. 8 is the sectional view of heating tube;
Fig. 9 is heating tube A-A portion sectional view.
[detailed description of the invention]
Below in conjunction with the drawings and specific embodiments, explanation is described in detail to the utility model.
Separating heat tube type solar heat pump composite heater, as shown in Figure 1,2 gravity check valves (first gravity check valve 1 and the second gravity check valve 2), composition such as the evaporation of compressor 3, condenser 4, throttling arrangement 6, solar energy heat collector 7, attemperater 5 etc. is comprised.Described condenser 4 is placed in described attemperater 5, described compressor 3 output is connected with condenser 4, described condenser 4 evaporates heat collector 7 by throttling arrangement 6 and solar energy and is connected, and described solar energy evaporation heat collector 7 is connected with described compressor 3 input, forms a recuperated cycle.The first branch line arranging between condenser 4 entrance and be connected the first gravity check valve 1 is exported at described solar energy evaporation heat collector 7, described first branch line exports between condenser 4 entrance, with compressor 3 place pipeline in being arranged in parallel at solar energy evaporation heat collector 7.Described condenser 4 exports the second branch line evaporating with solar energy and arrange between heat collector 7 entrance and be connected the second gravity check valve 2, the outlet of condenser 4 described in described second branch line is evaporated heat collector 7 entrance with solar energy and is connected, with throttling arrangement 6 place pipeline in being arranged in parallel.
The utility model has solar energy pattern and heat pump mode two mode of operations: when solar energy work pattern, described compressor 3 cuts out, described first gravity check valve 1 and the second gravity check valve 2 are opened, heat-exchange working medium is evaporated to gaseous state obtain heat in solar energy evaporation heat collector 7 after and rises, after the first gravity check valve 1 in parallel with compressor 3, enter condenser 4 release heat and be condensed into liquid state, under the effect of self gravitation, flow to solar energy evaporation heat collector 7 continuation heat absorption through the second gravity check valve 2 vaporize and rise, worker quality liquid is when under the effect of potential difference, low speed flows through the second gravity check valve 2, its flowing is slower, be not enough to the gravity overcoming the second gravity check valve 2 inner spool, working medium can be flow through, water in circulating-heating attemperater 5 like this.
When device works with heat pump mode, described compressor 3 startup optimization, first gravity check valve 1 and the second gravity check valve 2 are closed run the larger pressure reduction formed at compressor 3 under voluntarily, operation logic now and conventional heat pump principle are as good as: heat-exchange working medium solar energy evaporate absorb heat in heat collector 7 after vaporize, be inhaled into the gaseous working medium of compressor 3 boil down to HTHP, enter condenser 4 exothermic condensation again for liquid, then through throttling arrangement 6 reducing pressure by regulating flow, enter in solar energy evaporation heat collector 7 vaporization of again absorbing heat, hot water in circulating-heating attemperater 5 like this.Running water enters attemperater 5 from water inlet 8, and hot water flows out, for user from delivery port 9.
Wherein, described throttling arrangement 6 can be choke valve.In use, the mode of operation of the temperature of heat collector 7 and the relation determination unit of attemperater 5 is evaporated according to solar energy.The utility model also comprises electric controller and temperature sensor, for controlling the work of compressor 3.Described temperature sensor is installed in solar energy evaporation heat collector 7, for monitoring the temperature in solar energy evaporation heat collector 7.When temperature is lower than when vaporized refrigerant (solar heat cannot) during setting value, heat pump mode mode of operation will be started, otherwise reactor will always with solar energy work pattern.
The utility model is heating in principle and mode, is the combination of existing separating heat tube type solar water heater 7 and air source heat pump hot water device.Separating heat tube type solar heat pump water heating apparatus utilizes separating heat tube and heat pump management, by increasing by two check valves in heat pump cycle, in parallel with compressor and throttling arrangement respectively, to form two different mode of operations.Two check valves are gravity check valve, vertically arrange, and close during the pressure reduction formed after having compressor start, open during system balancing when compressor stops.When solar energy irradiation intensity deficiency or when not having completely, device is with heat pump mode work, compressor start runs, two check valves are closed voluntarily under differential pressure action, system works in heat pump cycle mode, identical with conventional heat pump working method: now solar energy evaporates the evaporimeter of collecting plate as system, for system provides heat, heat is absorbed from surrounding air and sunlight, the working medium heat absorption evaporation of system, after being inhaled into compressor compresses, pressure and temperature all raises, then condenser release heat is entered, and be condensed into liquid state, become the liquid refrigerant of high pressure, again after throttling arrangement step-down, enter the vaporization of solar energy evaporation heat collector evaporation endothermic, circulation like this, the low-temperature heat quantity that evaporation heat collector absorbs, condenser is sent into after improving temperature, when solar energy irradiation intensity is sufficient, device is with separating heat tube type solar energy work pattern, now compressor does not start, spool in two check valves falls under gravity, check valve is opened, working medium in solar energy evaporation heat collector, carburation by evaporation after absorption solar heat, and pass through the check valve of vapour side, enter condenser and carry out condensation heat release for liquid, under the effect of self gravitation, solar energy evaporation heat collector is back to by the check valve of liquid side, continue heat absorption vaporization, circulation like this, the heat of solar energy under the condition do not consumed energy automatic transport to attemperater.
Described solar energy evaporation heat collector, as illustrated in figs. 2-7, dull and stereotyped housing 75 can be comprised, transparent sealing cover plate 73 and evaporation heat collection mechanism, evaporation heat collection mechanism is installed in dull and stereotyped housing 75, between evaporation heat collection mechanism and dull and stereotyped housing 75, be filled with insulation material 76, described insulation material 76 can be cavernous body or rock wool, can effectively avoid evaporating the heat loss in heat collection mechanism.Above evaporation heat collection mechanism, cover collector lens cover plate 73, collector lens cover plate 73 is fixed on the edge of dull and stereotyped housing 75 by press box 71, between collector lens cover plate 73 and dull and stereotyped housing 75 edge, be provided with sealing frame 72.Press box 71 and the side of dull and stereotyped housing 75 can be fixed by locating pin 74, make press box 71, being closely linked of sealing frame 72 and collector lens cover plate 73 hermetic seal, dull and stereotyped housing 75 bottom interior wall place is provided with support 79, and evaporation heat collection mechanism is fixed on support 79.Described collector lens cover plate 73, by being gathered in after solar transmission on evaporation heat collection mechanism, improves the thermal efficiency.Described collector lens cover plate 73 can be Fresnel Lenses.To sum up, collector lens cover plate 73 can be avoided directly to contact with evaporation heat collection mechanism, extend the service life of collector lens cover plate 73; Also can play fixing protective effect to evaporation heat collection mechanism simultaneously.Described dull and stereotyped housing 75 can for being bent to form the direct integral structure of frame by four limits of base plate.The lateral wall of dull and stereotyped housing 75 is provided with groove, so that when mounted, press box 71 can carry out screens by the cell wall of groove, is convenient to firm installation.The both ends of press box 71 are provided with screens, collector lens cover plate 73 can be blocked on dull and stereotyped housing 75.Can be reinforced further by corner protector 710 in the corner of dull and stereotyped housing 75.Corner protector 710 encases feed tube on frame corner and the corresponding interface of steam outlet pipe, corner protector 710 is provided with the corresponding through hole that feed liquor thermal-collecting tube and fluid thermal-collecting tube pass, effectively can fixes evaporation heat collection mechanism like this.
Described evaporation heat collection mechanism, comprise collecting plate 78 and heating tube 77, feed tube 714 and steam outlet pipe 712, the two ends of described heating tube 77 are welded with feed tube 714 and steam outlet pipe 712 respectively and are communicated as one, and heating tube 77 is in intimate contact with the bottom surface of collecting plate 78.Collecting plate 78 surface is coated with the coating being beneficial to heat absorption and reducing heat loss.The mounting means of evaporation heat collection mechanism in dull and stereotyped housing 75 can be that heating tube 77 is vertically installed or heating tube 77 is laterally installed.Heating tube 77, feed tube 14 and steam outlet pipe 12 can adopt the good material of the conductive performance such as aluminium, copper to make.On the surface of heating tube 77, if copper pipe is then coated with black chromium, or vacuum sputtering has other heat absorption and the coating of protection, if aluminum pipe then carries out anodization on surface, absorbs heat and protection coating layer to produce.Described heating tube 77 is arranged in above described collecting plate 78, and is connected with feed tube 714 and steam outlet pipe 712 respectively.Described heating tube 77, as Figure 8-9, comprise evaporation tube 771 and all-glass vacuum tube 778, described all-glass vacuum tube 778 is set in the outside of evaporation tube 771, micro heat pipe 7710 is set between evaporation tube 771 and all-glass vacuum tube 778, the solar heat absorbed by all-glass vacuum tube 778, by being delivered to efficiently, fast in evaporation tube 771 by micro heat pipe 7710 while air and evaporation tube 771 convective heat exchange, carries out Fast Heating to refrigerator.Described micro heat pipe 7710 one end is fixedly connected on the lateral wall of evaporation tube 771, the other end by self elastic deformation and all-glass vacuum tube 778 sidewall close contact, to reach effective heat transfer, while also easy to assembly.Micro heat pipe 7710 can be able to be one according to the length of all-glass vacuum tube 778 in all-glass vacuum tube 778, or more than one.Micro heat pipe 7710 can be rule or irregular arrangement in all-glass vacuum tube 778.All-glass vacuum tube 778 inwall is provided with transparent coating 779.The set-up mode that described transparent coating 779 is optimized is arranged on the inwall of all-glass vacuum tube 778 internal layer.Micro heat pipe relies on its internal working medium phase transformation to carry out heat transmission, and have heat transfer efficiency high, average temperature performance is good, without the need to features such as additionaling powers, and the micro heat pipe that micro heat pipe can use the fields such as chip, device, system cools to apply widely.Can be provided with the arc reflection plate 7712 of 1/4 ~ 1/2 circle in all-glass vacuum tube 778, the focal zone of arc reflection plate 7712 concentrates on evaporation tube 771, focuses in evaporation tube 771 with the sunlight of transmission being come in.Arc reflection plate 7712 can be aluminium, and its reflecting surface is minute surface, and the arc reflection plate in all-glass vacuum tube can the impact of effective anti-oxidation and extraneous dust.Arc reflection plate 7712 and evaporation tube 771 are connected and fixed by connector 7713, and connector 7713 can be micro heat pipe, and micro heat pipe is welded between arc reflection plate 7712 and evaporation tube 771.One end of described evaporation tube 771 is connected with feed tube 714, and the other end is connected with steam outlet pipe 712.
The side, frame corner of dull and stereotyped housing 75 is provided with the interface 711 corresponding to feed tube and steam outlet pipe, feed tube and being provided with between steam outlet pipe and interface 711 seals fixing cushion rubber pad 715, make feed tube and steam outlet pipe and interface be in concentric circles position, reduce the heat loss because convection current causes.Interface 711 can be outstanding structure or sunk structure on dull and stereotyped housing 75.
Can be equiped with ultrasonic scale prevention equipment 718 at interface 711 place of feed tube, ultrasonic scale prevention equipment 718 effectively can prevent heating tube, feed tube and steam outlet pipe encrustation after opening.Because incrustation scale can have a strong impact on heat transfer, and there is the danger of booster.Ultrasonic scale prevention equipment 718 can be pipe clamp type ultrasonic wave functional device, is arranged on the outer wall at interface 711 place of feed tube.The bottom of dull and stereotyped housing 75 is provided with constant voltage hole 717, be beneficial to space in flat plate collector and keep being communicated with of appropriateness with the external world, thus an atmospheric intrinsic pressure in flat plate collector, can be maintained, also prevent when air humidity is large time, humidity in flat board is controlled, ensure that transparent sealing cover plate internal face because air contains supersaturated vapor, freezing dew condensation phenomenon can not occur, effectively can reduce when pH value is less than 7 formed in the acid globule simultaneously, thus ensure that dropping on heat absorbing coating without the globule avoids corroding.Described constant voltage hole 717 is provided with several, and diameter can be 5 ~ 12mm, and hole wall place is provided with guard aperture cushion rubber.A circular non-woven fabrics mesh bag is fixed wtih at constant voltage hole 717 inwall of the outer frame bottom plate of flat board, in mesh bag, the silica gel particle of moisture absorption by splendid attire, just in time cover constant voltage hole 717, make air can by constant voltage hole 717 turnover freely, but the moisture content moisture in the external world absorb by the silica gel in non-woven bag, thus can directly enter in flat plate collector by the isolated moisture content of appropriateness.
More than describe preferred embodiment of the present utility model in detail, should be appreciated that the ordinary skill of this area just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technical staff in the art according to the utility model design on prior art basis by logic analysis, reasoning or according to the available technical scheme of limited experiment, all should by among the determined protection domain of these claims.
Claims (4)
1. separating heat tube type solar heat pump composite heater, comprise compressor, condenser, throttling arrangement, evaporimeter and attemperater, described condenser is placed in described attemperater, described compressor output end is connected with condenser, described condenser is connected with evaporimeter by throttling arrangement, and described evaporimeter is connected with compressor input; It is characterized in that:
Described evaporator outlet is connected the first branch line of the first check valve with arranging between condenser inlet, described first branch line between evaporator outlet and condenser inlet with compressor place pipeline in being arranged in parallel;
Described condensator outlet is connected the second branch line of the second check valve with arranging between evaporator inlet, condensator outlet described in described second branch line and evaporator inlet and throttling arrangement place pipeline are in being arranged in parallel.
2. separating heat tube type solar heat pump composite heater as claimed in claim 1, is characterized in that: described check valve is gravity-held check valve.
3. separating heat tube type solar heat pump composite heater as claimed in claim 1, is characterized in that: described evaporimeter is solar energy evaporation heat collector.
4. the separating heat tube type solar heat pump composite heater as described in as arbitrary in claim 1-3, is characterized in that: have solar energy pattern and heat pump mode two mode of operations:
When solar energy work pattern, compressor cuts out, check valve and check valve are opened, working medium is evaporated to gaseous state obtain heat in solar energy evaporation heat collector after and rises, after the first check valve, enter condenser release heat and be condensed into liquid state, under the effect of self gravitation, flowing to solar energy evaporation heat collector continuation heat absorption through the second check valve and vaporize and rise;
When device works with heat pump mode, compressor start runs, close voluntarily under the larger pressure reduction that first check valve and the second check valve are formed at compressor operating, working medium is vaporized absorb heat in solar energy evaporation heat collector after, be inhaled into the gaseous working medium that compressor compresses is HTHP, enter condenser heat rejection again and be condensed into liquid state, then through throttling arrangement reducing pressure by regulating flow, enter in solar energy evaporation heat collector vaporization of again absorbing heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520029494.6U CN204593893U (en) | 2015-01-15 | 2015-01-15 | Separating heat tube type solar heat pump composite heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520029494.6U CN204593893U (en) | 2015-01-15 | 2015-01-15 | Separating heat tube type solar heat pump composite heater |
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| Publication Number | Publication Date |
|---|---|
| CN204593893U true CN204593893U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520029494.6U Expired - Fee Related CN204593893U (en) | 2015-01-15 | 2015-01-15 | Separating heat tube type solar heat pump composite heater |
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| CN (1) | CN204593893U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613653A (en) * | 2015-01-15 | 2015-05-13 | 广东纽恩泰新能源科技发展有限公司 | Composite heating device of separated heat pipe type solar heat pump |
| CN107131660A (en) * | 2017-06-28 | 2017-09-05 | 广东工业大学 | Solar energy loop circuit heat pipe heat pump hybrid system based on Fresnel Lenses thermal-arrest |
-
2015
- 2015-01-15 CN CN201520029494.6U patent/CN204593893U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613653A (en) * | 2015-01-15 | 2015-05-13 | 广东纽恩泰新能源科技发展有限公司 | Composite heating device of separated heat pipe type solar heat pump |
| CN107131660A (en) * | 2017-06-28 | 2017-09-05 | 广东工业大学 | Solar energy loop circuit heat pipe heat pump hybrid system based on Fresnel Lenses thermal-arrest |
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