CN204555353U - Air energy and solar united double water tank hot water supply apparatus - Google Patents

Air energy and solar united double water tank hot water supply apparatus Download PDF

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Publication number
CN204555353U
CN204555353U CN201520187738.3U CN201520187738U CN204555353U CN 204555353 U CN204555353 U CN 204555353U CN 201520187738 U CN201520187738 U CN 201520187738U CN 204555353 U CN204555353 U CN 204555353U
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water
water tank
pipe
tank
solar
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黄镭
林萍
陆干
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Section Of Nanning City Rope Science And Technology Ltd Co
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Section Of Nanning City Rope Science And Technology Ltd Co
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

Abstract

The utility model discloses a kind of air energy and solar united double water tank hot water supply apparatus, comprise thermal-collecting tube, storage tank, controller and heat pump, storage tank is connected with thermal-collecting tube, the circulating water outlet of storage tank is all connected with heat pump by water pipe with circulating water intake, the two lattice inner bag water tank of employing of described storage tank, described two lattice inner bag cisten mechanisms comprise and are wrapped in large water tank in heat-insulation layer and little water tank, little water tank is provided with little water tank interface pipe, inductor, delivery port, temperature visits hole for subsequent use, circulating water intake and spill-over or steam vent, large water tank is provided with filling pipe, circulating water outlet, large water tank mouthpiece, sewage draining exit and spill-over or blast pipe, connect by leading to adapter outward between little water tank interface pipe and large water tank mouthpiece, described filling pipe is provided with magnetic valve and water pump, controller Controlling solenoid valve, the opening and closing of water pump and heat pump.The utility model structure is simple, and heat exchange efficiency is high, easy cleaning, long service life.

Description

Air energy and solar united double water tank hot water supply apparatus
Technical field
The utility model belongs to air energy heat pump and solar association utilizes technical field, specifically a kind of air energy and solar united double water tank hot water supply apparatus.
Technical background
The minimizing day by day of the traditional energy fuel of depending on for existence along with us is even constantly tending towards exhausted, and the day by day serious harm that the burning of the non-reproducible traditional fuel such as coal, oil causes our living environment, when energy problem becomes the bottleneck of restriction international community sustainable economic development day by day, solar energy is common as a kind of nature, spatter property, high efficiency and rich reserves and inexhaustible resource, becomes people and restructures the use of energy, maintains the focus that long term growth pays close attention to.
At present, the most energy-conservation in water heater industry genus solar water heater.As long as the benefit of solar water heater has the sun, freely will produce hot water, the principle that heats of solar water heater sucks sunshine by coated glass vacuum tube and converts hot water to.But, the deficiency of solar water heater be overcast and rainy can not heat production water, like this, can not meet common people every day to the demand of hot water.Some producer, for making up this defect, has added electrical bar inside the water tank of solar water heater, like this, greatly reduces the energy-saving effect of solar water heater, improves maintenance cost high, affects the effect of unit defrosting.Solar heating is an environment-friendly engineering, is the solar energy of dispersion is converted to hot water easy to use by heat collector solar energy, is provided the system of hot water supply in room by delivery to heating end.
Temperature air-source heat pump technology is because its energy absorbed is from the not high water of temperature or air in recent years, and heat pump techniques and application thereof are developed rapidly.Heat pump techniques is combined with solar energy, forms complementary heat supply, by effectively solve solar energy less time hot water under-supply problem.Water heater general is at present all that after adopting one-time heating whole box water, constant temperature is incubated, and often cannot be used up again after heating, the time has been grown, and hot water has turned cold again, and electrical heating is again in heated at constant temperature, and continuous circulating-heating, so power consumption is very large.Open source literature also reports some heat pump techniques and is combined with solar energy, forms hot water supply system or the device of complementary heat supply, such as:
1, Chinese patent: solar-energy air-energy combination of water heater, application number: 201210175689.2, the applying date: 2012.05.26, applicant: Peng Ruiliang, address: 530022 No. 26, Xing Hu roads, Qingxiu District, Guangxi Zhuang Autonomous Region Nanning City, applicant: Peng Guang, inventor: Peng Ruiliang, Peng Guang, summary: a kind of water heater that efficiently solar energy and air can be changed into simultaneously heat energy.This water heater solar energy heat absorbing part: be made up of parts such as high light transmission glass plate, high extinction bisque, stainless steel absorber plate, deflectors; Air energy heat absorbing part: be made up of many stainless steel tube endothermic tubes, an automatic temperature-adjusting control ventilation electric fan and water storage box.The great advantage of this water heater is: realize solar energy and air can be heated simultaneously, and thermal efficiency is high; Main body device without aging action, long service life; Applicable elements is low, and the scope of application is wide, is convenient to vast rural area and promotes the use of; Safeguard simple, easy to use, be applicable to vast southern high-temperature area.
2, Chinese patent: with the air energy heat pump water heater of solar energy compound, application number: 201410134945.2, the applying date: 2014.04.04, applicant: The sun comes in the east in Guangdong air energy Co., Ltd, address: 528300 No. 5-6, Xin Yue roads, large Liang Wusha industry park, Shunde District, Fushan City, Guangdong Province, inventor: Qin Pengju, Cao Mingxiu, summary: this invention relates to air energy heat pump water heater that is a kind of and solar energy compound, and feature comprises water storage tank, heat exchange coil, off-premises station and solar thermal collector; Be respectively equipped with hot water outlet and hot water water inlet on the top of water storage tank, be provided with in the bottom of water storage tank and be respectively equipped with cold water water inlet and cold water delivery port; Described heat exchange coil is located in water storage tank; The hot water outlet of solar thermal collector is communicated with the hot water water inlet of water storage tank by the first water pipe, the cold water water inlet of solar thermal collector is communicated with the cold water delivery port of water storage tank by the second water pipe, the air intake vent of solar thermal collector communicates with the external world, and the air outlet of solar thermal collector is communicated with the air side heat exchanger of off-premises station by airduct.Its advantage is: in environment temperature, lower and solar energy irradiation is not in good situation, the air of the air side heat exchanger entering off-premises station can be made to be heated, make the evaporimeter of off-premises station reliably can obtain energy in air, ensure reliable cop, and when environment temperature is good and solar energy irradiation is good, do not open off-premises station, energy-conservation and environmental protection.
3, Chinese patent: a kind of air energy heat pump and the complementary hot water apparatus of solar energy, application number: 201210020851.3, the applying date: 2012.01.30, applicant: Zhang Bin, address: pretty 1 unit 706 Room, 11, garden of 650225 Kunming, Yunnan Province Beijing Road SOHO, inventor: Zhang Bin, summary: this disclosure of the invention a kind of air energy heat pump and the complementary hot water apparatus of solar energy, comprise air energy heat pump, accumulation of heat interchanger, heat pump heat exchanger, heat outputting water-to-water heat exchanger, solar heat water-to-water heat exchanger, solar heat water-circulating pipe, solar thermal collector, expansion tank, the heating machine set connection accumulation of heat interchanger of described air energy heat pump, described accumulation of heat interchanger arranges solar heat water-to-water heat exchanger and heat outputting water-to-water heat exchanger, solar heat water-to-water heat exchanger connects solar thermal collector by solar heat water-circulating pipe, under solar energy, circulation line connects expansion tank.This invention utilizes air energy heat pump and solar water heating system to form Double energy source water heating system, both air heat energy was taken full advantage of, straightening again to connect utilizes solar water for indirect utilization solar water, while raising air heat energy utilization rate, room air is exchanged in time, keep with fresh air, more ensure that solar water quality, instant heat, avoid bacteria breed, keep the use up to standard of hot water health.
4, Chinese patent: the winter heating system of a kind of solar energy and air energy heat pump complementation, application number: 201210467060.5, the applying date: 2012.11.17, applicant: Shan silkolene energy development limited company: address: ChuangXin Building S216 room, No. 25, a high-new road, 710075 Xi'an City, Shanxi Province, inventor: Yang Xiangmin, summary: this disclosure of the invention winter heating system of a kind of solar energy and air energy heat pump complementation, comprise cold water source, hot water, the caliduct be connected with hot water, solar heating loop and air energy heat pump heating loop, solar heating loop comprises the first solar heating pipeline, solar heat-collection plate, second solar heating pipeline and the 3rd solar heating pipeline, second solar heating pipeline is connected with the first circulating pump and the 3rd valve, 3rd solar heating pipeline is connected with the second circulating pump and the 4th valve, air energy heat pump heating loop comprises air energy heat pump, the first air energy heat pump heating pipeline and the second air energy heat pump heating pipeline, first air energy heat pump heating pipeline is connected with the second valve, the second air energy heat pump heating pipeline is connected with the first valve.This invention is rationally novel in design, and use simple operation, take full advantage of solar energy, household energy conservation emission reduction effect is good, practical, is convenient to promote the use of.
5, Chinese patent: a kind of novel solar-energy air-energy hot water apparatus, application number: 201210213749.5, the applying date: 2012.06.27, applicant: Cao Ligang, address: 311400 happiness No. 62, roads, village of Kou Zhenshang village, market, Fuyang, Hangzhou, Zhejiang province city, applicant: Cao Shaoyi, inventor: Cao Ligang, Cao doubts less, summary: a kind of novel solar-energy air-energy hot water apparatus of this disclosure of the invention, comprise solar thermal collector, air energy host machine, attemperater, described solar thermal collector is connected with attemperater by two pipelines, attemperater is connected with air energy host machine by two pipelines, air energy host machine is connected and fixed by a pipeline and attemperater, described attemperater one end is provided with several shower nozzles.A kind of novel solar-energy air-energy hot water apparatus of this invention is connected with attemperater by two conduit pipelines on solar thermal collector, the attemperater other end is provided with two pipelines and air energy host machine is connected and fixed, air energy host machine is connected with power supply, when the water temperature in attemperater is lower than 55 DEG C, air energy host machine will automatically switch to air source heat pump and carry out auxiliary heating.Air energy host machine auxiliary heating reaches defrosting effect, greatly reduces maintenance or replacement cost, is most energy-saving and environmental protection, safety, easily water heater in current solar water heater.
6, Chinese patent: domestic hot water's feed system of solar energy and air energy heat pump complementation, application number: 201210466825.3, the applying date: 2012.11.17, applicant: Shan silkolene energy development limited company, address: ChuangXin Building S216 room, No. 25, a high-new road, 710075 Xi'an City, Shanxi Province, inventor: Yang Xiangmin, summary: this disclosure of the invention domestic hot water's feed system of a kind of solar energy and air energy heat pump complementation, comprise solar heat-collection plate, air energy heat pump, high-temperature water tank and user's hot water use equipment, one end of solar heat-collection plate is connected with the first water inlet of high-temperature water tank, delivery port and user's hot water of high-temperature water tank use equipment to be connected, the water return outlet of high-temperature water tank is connected with the first port of evaporimeter in air energy heat pump, in air energy heat pump, the second port of evaporimeter is connected with the other end of solar heat-collection plate, in air energy heat pump evaporimeter the second port on be connected with compressed air reservoir, the first port of air energy heat pump inner condenser is connected with the second water inlet of high-temperature water tank, and the water return outlet of high-temperature water tank is connected with the second port of air energy heat pump inner condenser, the top of high-temperature water tank is connected with water pipe.This invention is rationally novel in design, and install and lay conveniently, take full advantage of solar energy, household energy conservation emission reduction effect is good, is convenient to promote the use of.
And in above-mentioned open source literature, do not report air energy and solar united double water tank hot water supply apparatus.
Summary of the invention
The purpose of this utility model is for prior art Problems existing, and provide a kind of structure simple, heat exchange efficiency is high, easy cleaning, and the air energy of long service life and solar united double water tank hot water supply apparatus.
To achieve these goals, the technical solution adopted in the utility model is:
Air energy of the present utility model and solar united double water tank hot water supply apparatus, comprise thermal-collecting tube, storage tank, controller and heat pump, storage tank is connected with thermal-collecting tube, the circulating water outlet of storage tank is all connected with heat pump by water pipe with circulating water intake, the two lattice inner bag water tank of employing of described storage tank, described two lattice inner bag cisten mechanisms comprise large water tank and little water tank, and large water tank and little water tank are all wrapped in heat-insulation layer; Little water tank is provided with little water tank interface pipe, inductor, delivery port, temperature spy hole for subsequent use, circulating water intake and spill-over or steam vent, large water tank is provided with filling pipe, circulating water outlet, large water tank mouthpiece, sewage draining exit and spill-over or blast pipe, connect by leading to adapter outward between little water tank interface pipe and large water tank mouthpiece, described filling pipe is provided with magnetic valve and water pump, and the signal that controller provides according to inductor is by the opening and closing of programme-control magnetic valve, water pump and heat pump; The place that the hot water that delivery port flows out extremely is needed by Pipeline transport.
The upper end mouth of pipe of described large water tank mouthpiece is higher than the upper end mouth of pipe of little water tank interface pipe, according to the principle that hot water proportion compares gently than cold water, preferentially goes out the hot water that top is hotter, is beneficial to extruding of hot water.
The upper end mouth of pipe of described spill-over or blast pipe, close to upper wall in large water tank, better realizes the function that it overflows and is vented.
Described heat-insulation layer outside is provided with aluminium alloy or stainless steel, and its insulation material comprises the component of following parts by weight:
Water soluble polyether 50 ~ 65 parts;
Polystyrene 8 ~ 12 parts;
Vermiculite 8 ~ 12 parts;
Polyvinyl alcohol 5 ~ 8 parts;
2 ~ 5 parts, mica;
Chloromethyl silane 2 ~ 4 parts;
Antimony oxide 2 ~ 3 parts;
Described water soluble polyether is mixed by the primary raw material of following parts by weight:
Glycerin polyether resin 5 ~ 7 parts, glycol ether resin 3 ~ 5 parts, palm oil 0.2 ~ 0.3 part, catalyst n, N-dimethyl cyclohexyl amine 0.2 ~ 0.4 part, curing agent dibutyl tin laurate 0.1 ~ 0.3 part, 0.2 ~ 0.4 part, deionized water water.
Compared with the existing technology, the beneficial effects of the utility model are:
1, the water storage tank inner container that the present invention adopts is divided into large water tank, little water tank two regions: adopt automatic water replenishing device moisturizing method, external tube connector is adopted to connect between inner bag, fairly simplely easily to connect, and the inner bag diameter of water tank is increased, the method that solar energy vacuum tube increases, like this, when overall cost does not have much changes, achieve each function optimization of solar water heater greatly to improve, solve the shortcoming that on existing market, conventional solar water heater is a lot.Particularly water temperature also can not be very high when burning sun is exposed to the sun for novel single case external interconnection system double-inner container solar water heater, avoid hot water too hot improper use time scald people, its storing water in water tank amount is large.
2, general at present solar water heater is when sunshine is more sufficient, and hot water is sufficient, when summer is without hot water, it is awfully hot, but to winter, within 1 year three to four months, be all heat by electricity, and be all that after adopting one-time heating whole box water, constant temperature is incubated substantially, often cannot be used up again after heating, time has been grown, and hot water has turned cold again, and electrical heating is again in heated at constant temperature, continuous circulating-heating, so power consumption is very large.And solar water heater of the present invention is when will lean on electrical heating, heat pump is adopted only to adopt fast heating type electricity-saving heating method to little water tank, and do not need to heat large water tank, do not need to close any valve just can realize, hot water in little water tank after heating also can not be gone here and there in large water tank, mainly large water tank and little water tank are that outer tube connector of putting is connected, water during heating in little water tank is by thermal convection current hot water, hot water does not move back to downwards in large water tank by external tube connector, even if when a people is with a small amount of hot water like this, the water heating little water tank is also very fast, need not wait for for a long time, little power consumption, how many with how many heating, avoid unnecessary waste, substantially reduce the heat time and save power consumption.
3, the inductor moment by the special delivery of water-temperature water-level signal to controller; controller is according to the work of signal electromagnet valve, water pump and heat pump; realize the endless supply of hot water; efficiently solve solar energy less time hot water under-supply problem; contribute to alleviating energy crisis; result of use is good, is convenient to promote the use of.
4, heat-insulation layer adopts special insulation material, and heat insulation effect is than traditional insulation material height 10%-20%.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model air energy and solar united double water tank hot water supply apparatus;
Fig. 2 is the contour structures simplified schematic diagram of the solar water heater that the utility model adopts;
Fig. 3 is the cross-section structure simplified schematic diagram of the solar water heater that the utility model adopts;
In figure, component names and sequence number are:
Thermal-collecting tube 1, storage tank 2, magnetic valve 3, water pump 4, filling pipe 5, circulating water outlet 6, large water tank mouthpiece 7, lead to adapter 8 outward, little water tank interface pipe 9, controller 10, inductor 11, delivery port 12, temperature visit hole 13 for subsequent use, circulating water intake 14, spill-over or steam vent 15, water pipe 16, heat pump 17, little water tank 18, heat-insulation layer 19, large water tank 20, sewage draining exit 21, spill-over or blast pipe 22.
Detailed description of the invention
Introduce the utility model in order to more detailed, below in conjunction with accompanying drawing, the utility model is described further.
As shown in the figure: air energy of the present utility model and solar united double water tank hot water supply apparatus, comprise thermal-collecting tube 1, storage tank 2, controller 10 and heat pump 17, storage tank 2 is connected with thermal-collecting tube 1, the circulating water outlet 6 of storage tank 2 is all connected with heat pump 17 by water pipe 16 with circulating water intake 14, the two lattice inner bag water tank of employing of described storage tank 2, described two lattice inner bag cisten mechanisms comprise large water tank 18 and little water tank 20, and large water tank 18 and little water tank 20 are all wrapped in heat-insulation layer 19; Little water tank 18 is provided with little water tank interface pipe 9, inductor 11, delivery port 12, temperature spy hole 13 for subsequent use, circulating water intake 14 and spill-over or steam vent 15, large water tank 20 is provided with filling pipe 5 circulating water outlet 6, large water tank mouthpiece 7, sewage draining exit 21 and spill-over or blast pipe 22, connect by leading to adapter 8 outward between water tank interface pipe 9 and large water tank mouthpiece 7, described filling pipe 5 is provided with magnetic valve 3 and water pump 4, and the signal that controller 10 provides according to inductor 11 is by the opening and closing of programme-control magnetic valve 3, water pump 4 and heat pump 17.
The upper end mouth of pipe of described large water tank mouthpiece 20 is higher than the upper end mouth of pipe of little water tank interface pipe 18.
The upper end mouth of pipe of described spill-over or blast pipe 22 is close to upper wall in large water tank 20.
Described heat-insulation layer 19 outside is provided with aluminium alloy or stainless steel, and its insulation material comprises the component of following parts by weight:
Water soluble polyether 50 ~ 65 parts;
Polystyrene 8 ~ 12 parts;
Vermiculite 8 ~ 12 parts;
Polyvinyl alcohol 5 ~ 8 parts;
2 ~ 5 parts, mica;
Chloromethyl silane 2 ~ 4 parts;
Antimony oxide 2 ~ 3 parts;
Described water soluble polyether is mixed by the primary raw material of following parts by weight:
Glycerin polyether resin 5 ~ 7 parts, glycol ether resin 3 ~ 5 parts, palm oil 0.2 ~ 0.3 part, catalyst n, N-dimethyl cyclohexyl amine 0.2 ~ 0.4 part, curing agent dibutyl tin laurate 0.1 ~ 0.3 part, 0.2 ~ 0.4 part, deionized water water.
The operation principle of air energy of the present utility model and solar united double water tank hot water supply apparatus:
Air energy of the present utility model and solar united double water tank hot water supply apparatus, according to utilizing hot water light specific gravity, the principle that hot water floating cold water sinks, the upper end mouth of pipe of large water tank mouthpiece 7 is designed higher than the upper end mouth of pipe of little water tank interface pipe 9, when making water produce microcirculation, hotter water is first flowed out the position arriving hot water needed for user by large water tank mouthpiece 7.Have passed through the design optimization of such inlet and outlet pipe, during moisturizing, cold water can only be mended to large water tank 20 cold water area, the i.e. bottommost of large water tank 20, if user is when using water, because user's use water need produce drop between large water tank 20 and little water tank 18, the water of large water tank 20 will move and flow in little water tank 18.Inductor 11 moment by the special delivery of water-temperature water-level signal to controller 10, when water level is lower than predetermined value, controller 10 sends water instruction, magnetic valve 3 is opened, running water is entered in large water tank 20 by magnetic valve 3 and filling pipe 5, until little water tank 18 water level reaches predetermined value, when hydraulic pressure is low or hydraulic pressure is unstable, by setting controller 10, start water pump 4 while starting magnetic valve 3 for storage tank pressurization.Under overcast and rainy snow weather condition, when little water tank 18 water temperature is lower than predetermined value, controller 10 sends heating instructions, starts heat pump 17, until little water tank 18 water temperature reaches predetermined value.In moisturizing process, hot water, because proportion is lighter than cold water, can floats over the top of large water tank 20, by the pressure of drop, flow through little water tank 18 again from the large water tank mouthpiece 5 on large water tank 20 top, so remain that in large water tank 20, the hottest water preferentially uses.Adopt automatic water replenishing device lack of water moisturizing method, cold water is directly mended in large water tank 20, because the ratio of cold water is great, the cold water of new benefit sinks to again in large solar energy vacuum pipe, the hot water stored in vacuum tube being squeezed out again the top floating to large water tank 20, flowing to little water tank 18 for user by leading to adapter 8 outward, the hot water stored in vacuum tube is all fully used, so move in circles, realize the endless supply of hot water.Before not starting heat pump 17, this hot water supply apparatus goes out hot water amount many more than 30% than the hot water supply apparatus of prior art.
Above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited to above-mentioned example, those skilled in the art, in essential scope of the present utility model; the change made, remodeling, interpolation or replacement, all should belong to protection domain of the present utility model.

Claims (3)

1. an air energy and solar united double water tank hot water supply apparatus, it is characterized in that: comprise thermal-collecting tube (1), storage tank (2), controller (10) and heat pump (17), storage tank (2) is connected with thermal-collecting tube (1), circulating water outlet (6) and the circulating water intake (14) of storage tank (2) all pass through water pipe (16) and are connected with heat pump (17), the two lattice inner bag water tank of employing of described storage tank (2), described two lattice inner bag cisten mechanisms comprise and are wrapped in large water tank (18) in heat-insulation layer (19) and little water tank (20), little water tank (18) is provided with little water tank interface pipe (9), inductor (11), delivery port (12), temperature visits hole for subsequent use (13), circulating water intake (14) and spill-over or steam vent (15), large water tank (20) is provided with filling pipe (5), circulating water outlet (6), large water tank mouthpiece (7), sewage draining exit (21) and spill-over or blast pipe (22), connect by leading to adapter (8) outward between little water tank interface pipe (9) and large water tank mouthpiece (7), described filling pipe (5) is provided with magnetic valve (3) and water pump (4), controller (10) Controlling solenoid valve (3), the opening and closing of water pump (4) and heat pump (17).
2. air energy according to claim 1 and solar united double water tank hot water supply apparatus, is characterized in that: the upper end mouth of pipe of described large water tank mouthpiece (20) is higher than the upper end mouth of pipe of little water tank interface pipe (18).
3. air energy according to claim 1 and solar united double water tank hot water supply apparatus, is characterized in that: the upper end mouth of pipe of described spill-over or blast pipe (22) is close to large water tank (20) interior upper wall.
CN201520187738.3U 2015-03-31 2015-03-31 Air energy and solar united double water tank hot water supply apparatus Active CN204555353U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106247775A (en) * 2016-08-29 2016-12-21 广西横县威林木材市场投资有限公司 A kind of rail mounted wood single-plate drying device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106247775A (en) * 2016-08-29 2016-12-21 广西横县威林木材市场投资有限公司 A kind of rail mounted wood single-plate drying device

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