CN201819442U - Energy-saving water return device of solar hot water system capable of improving solar energy utilization rate - Google Patents

Energy-saving water return device of solar hot water system capable of improving solar energy utilization rate Download PDF

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Publication number
CN201819442U
CN201819442U CN2010205343490U CN201020534349U CN201819442U CN 201819442 U CN201819442 U CN 201819442U CN 2010205343490 U CN2010205343490 U CN 2010205343490U CN 201020534349 U CN201020534349 U CN 201020534349U CN 201819442 U CN201819442 U CN 201819442U
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CN
China
Prior art keywords
water
solar
water tank
energy
container
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2010205343490U
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Chinese (zh)
Inventor
吴勇章
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GUANGDONG HONGRI SOLAR ENERGY CO Ltd
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GUANGDONG HONGRI SOLAR ENERGY CO Ltd
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Priority to CN2010205343490U priority Critical patent/CN201819442U/en
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Publication of CN201819442U publication Critical patent/CN201819442U/en
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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

Abstract

The utility model discloses an energy-saving water return device of a solar water heating system capable of improving solar energy utilization rate, which comprises a solar water tank and a central water tank. The solar water tank is connected with the central water tank by a water inlet pump of the central water tank, the solar water tank is connected with a cold water inlet pipe and further connected with a solar heat collector by a solar forced circulating pump, the solar heat collector is connected to the solar water tank further connected with a heat pump, the central water tank is connected with a main water supply pipe, and the main water supply pipe is further connected with a main return water pipe. The energy-saving water return device is characterized in that the main return water pipe is connected to the solar water tank by an electromagnetic valve of the solar water tank and further connected to the central water tank by an electromagnetic valve of the central water tank, and a solar temperature switch for controlling on and off of the electromagnetic valve of the central water tank is further disposed in the solar water tank. The energy-saving water return device of a solar water heating system overcomes the shortcomings in the prior art, avoids great influence on the temperatures of the water tanks and quality of supplied water, and improves solar energy utilization rate.

Description

Improve the energy-conservation water recovery apparatus of the solar water heating system of solar energy utilization ratio
[technical field]
The present invention relates to a kind of solar water heating system, relate in particular to a kind of energy-conservation water recovery apparatus that improves the solar water heating system of solar energy utilization ratio.
[background technology]
The water recovery apparatus of existing a kind of solar water heating system, comprise solar water container, concentrate water tank, solar water container is connected with concentrated water tank by concentrating the water tank water intake pump, solar water container connects into cold water pipe, solar water container also forces circulating pump to be connected to solar thermal collector by solar energy, and solar thermal collector is connected to solar water container, and solar water container also connects heat pump, concentrated water tank is also connected to the return main when meeting the water main, concentrate cistern water supply; The backwater of the water recovery apparatus of solar water heating system, prior art mainly contain 2 kinds, and a kind of is that direct backwater is to solar water container, if the solar water container temperature is not high enough, directly backwater causes the solar water container temperature to rise slowly to solar water container, increases the time of heat pump; Another kind is that direct backwater arrives concentrated water tank, and the water temperature of concentrated water tank can change very fast, influences quality of water supply.
[summary of the invention]
The objective of the invention is to overcome existing weak point, provide a kind of and can not influence water tank temperature very greatly, can not influence the water recovery apparatus of solar water heating system of the raising solar energy utilization ratio of quality of water supply, improve the solar energy utilization rate and the thermal efficiency simultaneously, reduced the conventional energy consumption of auxiliary firing equipment.
The object of the present invention is achieved like this:
A kind of energy-conservation water recovery apparatus that improves the solar water heating system of solar energy utilization ratio, comprise solar water container, concentrate water tank, solar water container is connected with concentrated water tank by concentrating the water tank water intake pump, solar water container connects into cold water pipe, solar water container also forces circulating pump to be connected to solar thermal collector by solar energy, and solar thermal collector is connected to solar water container, and solar water container also connects heat pump, concentrated water tank meets the water main, and the water main is also connected to the return main; It is characterized in that the return main is connected to solar water container by the solar water container magnetic valve, the return main is also by concentrating the water tank magnetic valve to be connected to concentrated water tank, be provided with the solar energy temperature switch of control solar water container magnetic valve break-make in the solar water container, also be provided with the concentrated temperature switch that water tank magnetic valve break-make is concentrated in control in the solar water container;
Be provided with the return water temperature switch as mentioned above among the return main.
The invention has the beneficial effects as follows:
When the water temperature of solar water container reached uniform temperature t2, the direct backwater of return main was to solar water container, and (when t2>t1) was lower, return main's backwater was to concentrating water tank when solar water container temperature t 1.The mode of these two kinds of backwater can the very big temperature that influences water tank, can not influence the quality of water supply, has improved the solar energy utilization rate and the thermal efficiency simultaneously, has reduced the conventional energy consumption of auxiliary firing equipment.
[description of drawings]
Fig. 1 is a structure chart of the present invention;
Fig. 2 is circuit theory diagrams of the present invention.
[specific embodiment]
See Fig. 1, a kind of energy-conservation water recovery apparatus that improves the solar water heating system of solar energy utilization ratio, comprise solar water container 1, concentrate water tank 2, solar water container is connected with concentrated water tank by concentrating water tank water intake pump 3, solar water container connects into cold water pipe 4, solar water container 1 also forces circulating pump 5 to be connected to solar thermal collector 6 by solar energy, solar thermal collector is connected to solar water container, solar water container also connects heat pump 7, concentrated water tank meets water main 8, and the water main is also connected to return main 9; It is characterized in that the return main is connected to solar water container by solar water container magnetic valve 10, the return main is also by concentrating water tank magnetic valve 11 to be connected to concentrated water tank, be provided with the solar energy temperature switch 121 of control solar water container magnetic valve break-make in the solar water container, also be provided with the concentrated temperature switch 122 that water tank magnetic valve break-make is concentrated in control in the solar water container.
When the water temperature of solar water container reached uniform temperature t2, the direct backwater of return main was to solar water container, and (when t2>t1) was lower, return main's backwater was to concentrating water tank when solar water container temperature t 1.The mode of these two kinds of backwater can the very big temperature that influences water tank, can not influence the quality of water supply.Heat pump 7 is auxiliary firing equipment.
Be provided with return water temperature switch 13 among the return main.The water main is provided with hot water electric butterfly valve 14.
See Fig. 1,2, TS1-1 represents timer-operated normal open switch, S1 represents three position switch, and KM1 represents A.C. contactor, can drive automatic back water pump or common back water pump 18, and TE1-1 represents return water temperature switch 13, temperature switch 122 is concentrated in the TE2-1 representative, TE2-2 represents solar energy temperature switch 121, and water tank magnetic valve 11 is concentrated in the KA1 representative, and KA2 represents solar water container magnetic valve 10, KA3 represents hot water electric butterfly valve 14, and XD1 represents relay indicating light.
When timer is provided with regularly, through after the heating of certain hour, the connection of TS1-1 normal open switch, S1 three position switch are connected, 14 energisings of KA3 hot water electric butterfly valve, water main's heat supply water; If be not provided with regularly, S1 three position switch are directly connected, 14 energisings of KA3 hot water electric butterfly valve, water main's 8 heat supply water.
Return main's temperature reduces behind the heat supply water, this moment is if return water temperature switch TE1-1 detects water temperature and drops to uniform temperature, the normally closed switch contacting, if at this moment the TE2-1 normal open switch detects solar water container temperature t 1 lower the time, KA1 concentrates 11 energisings of water tank magnetic valve, and return main's 9 backwater are to concentrating water tank 2; If at this moment the TE2-2 normal open switch water temperature that detects solar water container reach uniform temperature t2 (during t2>t1), 10 energisings of KA2 solar water container magnetic valve, the direct backwater of return main is to solar water container 1.
Water in the solar water container 1 heats by heat collector, and behind solar light irradiation heat collector heating certain hour, water temperature raises gradually in the vacuum tube.When point for measuring temperature on the vacuum tube square formation and following point for measuring temperature certain temperature difference is arranged the time, startup forced circulation pump 5 is clamp-oned the solar energy water upper box part to the hot water in the vacuum tube square formation, the cold water of warming solar energy lower box part is pumped down to the vacuum tube square formation; When temperature difference during less than certain limit, stop the forced circulation pump work, the water temperature in the solar water container is raise gradually.
Concentrated water tank also connects air source heat pump 7, and air source heat pump connects back concentrated water tank again by heat pump cycle pump 15.When cloudy day or night, when sunshine was not enough, air source heat pump work added hot water.
The heat pump that solar water container connects is an air source heat pump 7, and air source heat pump connects back solar water container again by heat pump cycle pump 15.When cloudy day or night, when sunshine was not enough, air source heat pump work added hot water.
The cold water pipe that advances that solar water container connects is provided with cold water water filter 16, cold water magnetic valve 17.Cold water covers in the solar water container by the cold water magnetic valve, and when using hot water, the solar water container water level descends gradually, when falling designated water level, the cold water magnetic valve is opened automatically, supplies water in solar water container, closes automatically when water level rises to designated water level in the solar water container.

Claims (5)

1. energy-conservation water recovery apparatus that improves the solar water heating system of solar energy utilization ratio, comprise solar water container (1), concentrate water tank (2), solar water container is connected with concentrated water tank by concentrating water tank water intake pump (3), solar water container connects into cold water pipe (4), solar water container (1) also forces circulating pump (5) to be connected to solar thermal collector (6) by solar energy, solar thermal collector is connected to solar water container, solar water container also connects heat pump (7), concentrated water tank meets water main (8), and the water main is also connected to return main (9); It is characterized in that the return main passes through solar water container magnetic valve (10) and is connected to solar water container, the return main is also by concentrating water tank magnetic valve (11) to be connected to concentrated water tank, be provided with the solar energy temperature switch (121) of control solar water container magnetic valve break-make in the solar water container, also be provided with the concentrated temperature switch (122) that water tank magnetic valve break-make is concentrated in control in the solar water container.
2. a kind of energy-conservation water recovery apparatus that improves the solar water heating system of solar energy utilization ratio according to claim 1 is characterized in that being provided with among the described return main return water temperature switch (13).
3. a kind of energy-conservation water recovery apparatus that improves the solar water heating system of solar energy utilization ratio according to claim 1 is characterized in that described water main is provided with hot water electric butterfly valve (14).
4. a kind of energy-conservation water recovery apparatus that improves the solar water heating system of solar energy utilization ratio according to claim 1 and 2, it is characterized in that described concentrated water tank also connects air source heat pump (7), air source heat pump connects back concentrated water tank again by heat pump cycle pump (15).
5. a kind of energy-conservation water recovery apparatus that improves the solar water heating system of solar energy utilization ratio according to claim 1 and 2 is characterized in that the cold water pipe that advances that described solar water container connects is provided with cold water water filter (16), cold water magnetic valve (17).
CN2010205343490U 2010-09-11 2010-09-11 Energy-saving water return device of solar hot water system capable of improving solar energy utilization rate Expired - Lifetime CN201819442U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205343490U CN201819442U (en) 2010-09-11 2010-09-11 Energy-saving water return device of solar hot water system capable of improving solar energy utilization rate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205343490U CN201819442U (en) 2010-09-11 2010-09-11 Energy-saving water return device of solar hot water system capable of improving solar energy utilization rate

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CN201819442U true CN201819442U (en) 2011-05-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101949599A (en) * 2010-09-11 2011-01-19 广东红日太阳能有限公司 Solar water heating system energy-saving water return device for enhancing solar energy utilization rate
CN105004067A (en) * 2015-07-23 2015-10-28 福建省第五建筑工程公司 Heating system making use of both solar energy and air source

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101949599A (en) * 2010-09-11 2011-01-19 广东红日太阳能有限公司 Solar water heating system energy-saving water return device for enhancing solar energy utilization rate
CN101949599B (en) * 2010-09-11 2012-02-29 广东红日太阳能有限公司 Solar water heating system energy-saving water return device for enhancing solar energy utilization rate
CN105004067A (en) * 2015-07-23 2015-10-28 福建省第五建筑工程公司 Heating system making use of both solar energy and air source

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AV01 Patent right actively abandoned

Granted publication date: 20110504

Effective date of abandoning: 20120229