CN211782033U - Solar centralized hot water system - Google Patents

Solar centralized hot water system Download PDF

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Publication number
CN211782033U
CN211782033U CN202020379481.2U CN202020379481U CN211782033U CN 211782033 U CN211782033 U CN 211782033U CN 202020379481 U CN202020379481 U CN 202020379481U CN 211782033 U CN211782033 U CN 211782033U
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China
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water
pipe
heat
heat exchanger
solar
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CN202020379481.2U
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车袁
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Suzhou Planning & Design Research Institute Co ltd
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Suzhou Planning & Design Research Institute Co ltd
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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
    • 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
    • Y02E10/47Mountings or tracking

Abstract

The utility model relates to a solar energy centralized hot water system, which is applied to the technical field of solar energy heat utilization and solves the problem of low heat exchange efficiency between a heat exchanger and a hot water storage pipe; the solar heat collector comprises a solar heat collector, a heat exchanger and a heat storage water tank, wherein a first water pipe is arranged between a water outlet on the solar heat collector and a hot water inlet of the heat exchanger, a water return pipe is arranged at a cold water outlet, one end of the water return pipe is connected with a water inlet of the solar heat collector, a cold water pipe is arranged at the cold water inlet, a third water pipe is arranged at the hot water outlet, the third water pipe is connected with the heat storage water tank, a circulating water pipe is arranged between the heat exchanger and the heat storage water tank, one end of the circulating water pipe is connected with the heat storage water tank, the other end of the circulating water pipe is connected with the cold water pipe of the heat exchanger, a; the utility model discloses have the heat exchange efficiency who improves the heat exchanger, with the heat transfer performance make full use of's of heat exchanger effect.

Description

Solar centralized hot water system
Technical Field
The utility model belongs to the technical field of the solar thermal energy utilization technique and specifically relates to a solar energy central hot water system is related to.
Background
At present, with the gradual decrease of traditional fossil energy sources such as petroleum, coal, natural gas and the like and the increasingly severe environmental problems brought by the use of the fossil energy sources, more and more attention is paid to the development of various clean energy and renewable energy utilization technologies. Among them, the use of large-scale solar heat collection devices in buildings is an effective renewable energy utilization means for supplying domestic hot water to buildings in a centralized manner, and has excellent environmental protection performance, so that the development and application of the solar heat collection devices are very rapid in recent years.
The existing Chinese patent publication No. CN 201463107U discloses an exchange type solar water heating system with centralized heat storage, which comprises a solar heat collector group, a heat exchange water tank and user heat exchange units, wherein the solar heat collector group and the heat exchange water tank are connected into a closed loop, the user heat exchange units are respectively connected onto the heat exchange water tank, each user heat exchange unit comprises a household heat exchange device which is arranged in the heat exchange water tank and is independently arranged, and each household heat exchange device is communicated with a cold water inlet pipe and a hot water outlet pipe which are respectively connected with each user.
The above prior art solutions have the following drawbacks: sunlight is sufficient in daytime, the solar heat collector can fully convert light energy into heat energy, water in the solar heat collector is heated, the heated water flows into the heat exchanger, cold water stored in the heat exchanger is heated through the heat exchanger, and the heated water flows into the heat storage water tank. The hot water quantity is few daytime, and when the water level in the heat storage water tank reached the highest water level value of settlement, the heat exchanger just stopped to flow into hot water to the heat storage water tank, can't transmit the heat to the heat storage water tank in this way again, and the hot water temperature in the heat storage water tank reduces along with time gradually, and does not have illumination evening, and the heat exchanger heat transfer reduces, just so leads to heat exchanger heat exchange efficiency can not obtain make full use of all the time, makes the heat exchange between heat exchanger and the heat storage water tank lower.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art existence, the utility model aims at providing a solar energy collection hot water system, its advantage is: the heat exchange can be well carried out between the heat exchanger and the heat storage water tank, and the heat exchange performance of the heat exchanger is fully utilized.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a solar hot water collecting system comprises a solar heat collector, a heat exchanger and a heat storage water tank, wherein a water outlet is formed in one side of the top end of the solar heat collector, a water inlet is formed in one side of the bottom end of the solar heat collector, a hot water inlet, a cold water outlet and a cold water inlet are formed in one side of the heat exchanger, a hot water outlet is formed in the top end of the heat exchanger, a first water pipe is arranged between the water outlet in the solar heat collector and the hot water inlet in the heat exchanger, a water return pipe is arranged at the cold water outlet, one end of the water return pipe is connected with the water inlet of the solar heat collector, a cold water pipe is arranged at the cold water inlet, a third water pipe is arranged at the hot water outlet and is connected with the heat storage water tank, a circulating water, the other end of circulating pipe is connected with the cold water union coupling of heat exchanger, but be provided with the circulating pump of intermittent type nature operation on the circulating pipe, be provided with on the circulating pipe and be used for injecing the check valve in rivers follow heat storage water tank flow direction heat exchanger.
By adopting the technical scheme, the solar heat collector is used for heating water in the solar heat collector by solar heat energy, when the water in the solar heat collector reaches a certain temperature, a temperature signal triggers a valve on a water pipe, at the moment, hot water flows into the heat exchanger, cold water in the heat exchanger is heated by the heat exchanger, the heated water reaches a certain temperature value and then flows into the heat storage water tank, the heat exchange performance of the heat exchanger is best in daytime, but the hot water used by a user is not much, the water quantity in the heat storage water tank is not reduced, the hot water heated in the heat exchanger cannot enter the heat storage water tank, the heat exchange circulation process is only carried out in water stored in the heat exchanger at the moment, the heat exchange performance of the heat exchanger is poor at night, but the water using quantity of the user is larger at the moment, and the water temperature in the heat storage water tank is gradually reduced along with time, so that the heat exchange performance of the, but can not be with the condition of the heat transfer efficiency make full use of between heat exchanger and the heat storage water tank, in order to improve the heat transfer efficiency between heat exchanger and the heat storage water tank, but the circulating pump of intermittent type nature operation that sets up between heat exchanger and heat storage water tank is arranged in circulating the water circulation to the heat exchanger in the heat storage water tank, the efficiency of heat transfer is improved, circulating pump accessible time relay realizes intermittent type nature operation, also can realize circulating pump intermittent type nature operation or also can be temperature control and water level detection by manual operation and realize intermittent type nature operation, the check valve that sets up on circulating pipe makes the water in the heat storage water tank one-way flow in the heat exchanger, can prevent through the check valve that water in the heat exchanger from flowing back to the heat storage water tank.
The utility model discloses further configure to: the top of heat exchanger is provided with first temperature controller, the top of heat exchanger is provided with first water level ware, be provided with cold water control valve on the cold water pipe.
By adopting the technical scheme, the first temperature controller is used for detecting the temperature of cold water heating in the heat exchanger, when cold water is heated to a preset temperature, water in the heat exchanger automatically flows into the hot water storage tank, the first water level controller controls the opening and closing of the cold water controller on the cold water pipe, when the water level in the heat exchanger reaches a high level, the first water level controller controls the cold water control valve to stop working, the first water level controller and the first temperature controller can automatically control the supply and the flow of water, manual water feeding of a user is not needed, and the use of the user is facilitated.
The utility model discloses further configure to: and a second temperature controller is arranged on the heat storage water tank, and a second water level device is arranged on the heat storage water tank.
Through adopting above-mentioned technical scheme, the second temperature controller is used for detecting the temperature of the water in the heat storage water tank, when the temperature reaches predetermined temperature value, through opening of temperature signal control circulating pump, the second water level ware is used for detecting the height of water level, when the water level in the heat storage water tank reaches predetermined minimum water level, the minimum signal of water level triggers opening and stopping of circulating pump, make the circulating pump stop work, open the circulating pump through automatic, do not need artificial control, reduce the use of manpower, look over content and the hydrothermal temperature of the water in the heat storage water tank through second temperature controller and second water level ware convenience of customers.
The utility model discloses further configure to: the scale discharging pipe is arranged on the other side of the bottom end of the heat exchanger, an end cover is arranged on the scale discharging pipe, and the end cover can be in threaded connection with the water discharging pipe.
Through adopting above-mentioned technical scheme to be in, long-time use solar energy collection hot water system back, the incrustation scale can accumulate more, when the incrustation scale adheres to very thick on the spiral water pipe, it is slower to lead to the heat transfer of spiral water pipe, in order to improve heat transfer efficiency, need the workman regularly carry out the incrustation scale for the heat exchanger and handle, for the convenience of the discharge of incrustation scale, be provided with the drainage incrustation scale pipe in the bottom of heat exchanger, the water of clearance incrustation scale flows from the drainage incrustation scale pipe, through end cover seal drainage incrustation scale pipe when not clearing up, prevent that hot water from.
The utility model discloses further configure to: and a sealing gasket is arranged between the scale discharging pipe and the end cover.
Through adopting above-mentioned technical scheme, sealed the leakproofness that can increase between end cover and the drainage dirt pipe of filling up, prevent that hot water from flowing out in the drainage dirt pipe, cause hydrothermal waste.
The utility model discloses further configure to: the bottom of solar collector is provided with the solar panel, the solar panel is installed on solar collector, the shape of solar panel sets to the arc form.
Through adopting above-mentioned technical scheme, in order to the utilization solar illumination that can be better, be provided with the solar panel in solar collector's bottom, the solar panel is used for gathering large tracts of land sunlight and reflects solar collector on, improves the thermal-arrest effect on the solar collector.
The utility model discloses further configure to: and an auxiliary heater is arranged on one side of the heat storage water tank.
Through adopting above-mentioned technical scheme, when the environment is cloudy day or cold season in succession, the illumination of sunlight is not enough, and the temperature of water probably can not reach the temperature that the user required this moment, and auxiliary heater mainly used heats the water in the heat-retaining case, makes the temperature reach the required temperature of user, convenience of customers' use.
The utility model discloses further configure to: and heat insulation layers are arranged on the first water pipe, the third water pipe, the circulating pipe and the water return pipe.
Through adopting above-mentioned technical scheme, be provided with the heat preservation on first water pipe, third water pipe, wet return and circulating pipe, in winter, the temperature is lower, in order to prevent that the water pipe from being frozen and split, is provided with the heat preservation on the water pipe respectively, not only can reduce the speed that the temperature descends through the heat preservation, can also prevent that the water pipe can not be by the frost crack, can prolong the life of water pipe.
To sum up, the utility model discloses a following at least one useful technological effect is: but through be provided with the circulating pump of intermittent type nature operation between heat exchanger and heat storage water tank, make can be fine carry out the heat transfer between heat exchanger and the heat storage water tank, with the heat transfer performance make full use of heat exchanger.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a sectional view of the filter device in the present embodiment;
fig. 3 is a sectional view of the auxiliary heater in the present embodiment.
In the figure, 1, a solar heat collector; 11. a water outlet; 12. a water inlet; 13. a heat-insulating layer; 14. a light-gathering plate; 2. a heat exchanger; 20. a spiral water pipe; 21. a hot water inlet; 22. a cold water outlet; 23. a cold water inlet; 24. a hot water outlet; 25. a scale discharge pipe; 26. An end cap; 27. A gasket; 28. a first temperature controller; 29. a first water level device; 3. a heat storage water tank; 30. a connecting pipe; 31. a second temperature controller; 32. a second water level device; 33. an auxiliary heater; 35. an on-off valve; 36. heating a tube; 4. a first water pipe; 5. a water return pipe; 6. a cold water pipe; 61. a cold water control valve; 7. a third water pipe; 8. A circulating water pipe; 9. a circulation pump; 10. a one-way valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the solar energy centralized hot water system disclosed by the present invention, including a solar heat collector 1, when sunlight irradiates on the solar heat collector 1, the solar heat collector 1 converts light energy into heat energy, and heats water stored in the solar heat collector 1 through the heat energy, one end of the solar heat collector 1 is provided with a water outlet 11, the water outlet 11 is communicated with a first water pipe 4, one end of the first water pipe 4 is in threaded connection with the water outlet 11, the first water pipe 4 is provided with a temperature controller and a control valve, the model of the control valve is 2W-160-15, the model of the temperature controller is OHR-a300B-02-2-1/P/D, the temperature controller is electrically connected with the control valve, the temperature controller is used for detecting the temperature of the water in the solar heat collector 1, the control valve is used for controlling the on-off of the first water pipe, be provided with heat exchanger 2 in one side of solar collector 1, the inside spiral water pipe 20 that is provided with of heat exchanger 2, spiral water pipe 20 is along the vertical spiral setting in inside of heat exchanger 2, heat exchanger 2 is the cold water in utilizing the hydrothermal heat energy heating heat exchanger 2 that flows into in spiral water pipe 20, one side of heat exchanger 2 is provided with hot water import 21, the other end and the hot water import 21 threaded connection of first water pipe 4, when the temperature controller detects the temperature in the solar collector 1 and reaches predetermined temperature value, the temperature signal that the temperature controller spreads triggers the switch of control valve, open the control valve, water in the solar collector 1 at this moment flows into the inside spiral water pipe 20 of heat exchanger 2 through first water pipe 4 in, cold water in the heat exchanger 2 heats.
Referring to fig. 1, a water inlet 12 is disposed at the other end of a solar thermal collector 1, a cold water outlet 22 is disposed at the same side of a heat exchanger 2 as a hot water inlet 21, a water return pipe 5 is disposed between the cold water outlet 22 and the water inlet 12, when a spiral water pipe 20 is filled with hot water, heat of the hot water in the spiral water pipe 20 is transferred to cold water in the heat exchanger 2 through heat transfer, a first temperature controller 28 is disposed at the top end of the heat exchanger 2, the first temperature controller 28 is OHR-a300B-02-2-1/P/D, the first temperature controller 28 is used for detecting the temperature of the water in the heat exchanger 2, and when the temperature of the water in the heat exchanger 2 does not reach a predetermined temperature, the water in the spiral water pipe 20 flows into the solar thermal collector 1 through the water return pipe 5 under the action of a water. The other side of the heat exchanger 2 is provided with a heat storage water tank 3, the heat exchanger 2 is provided with a hot water outlet 24, a third water pipe 7 is communicated between the hot water outlet 24 and the heat storage water tank 3, and when the first temperature controller 28 detects that the temperature of the water in the heat exchanger 2 reaches a preset temperature value, the hot water in the heat exchanger 2 flows into the heat storage water tank 3 through the third water pipe 7.
Referring to fig. 1 and 2, the sunlight is sufficiently illuminated in daytime, the solar heat collector 1 can sufficiently convert the light energy into heat energy, the heated water flows into the heat exchanger 2, when the heat exchange performance of the heat exchanger 2 is optimal, but the hot water used by a user is not much, when the water amount in the heat storage water tank 3 reaches the highest water level set by the system, the heated hot water in the heat exchanger 2 cannot enter the heat storage water tank 3, the water temperature in the heat storage water tank 3 is gradually reduced along with the time, the heat exchange circulation process is only carried out in the heat exchanger 2 at the time, the hot water used at night is large, but the heat exchange performance of the heat exchanger 2 is worse than that in daytime, so that the heat exchange efficiency between the heat exchanger 2 and the heat storage water tank 3 is low, in order to improve the heat exchange efficiency between the heat exchanger 2 and the heat storage water tank 3, a cold water inlet 23 is arranged on one side of the heat exchanger 2, be provided with circulating water pipe 8 in heat storage water tank 3's one end, circulating water pipe 8's one end is connected with heat storage water tank 3, circulating water pipe 8's the other end is connected with cold water pipe 6, but be provided with the circulating pump 9 of intermittent type nature operation on circulating water pipe 8, circulation 9 accessible time relay realizes intermittent type nature operation, also can realize the intermittent type nature operation by manual operation circulating pump intermittent type nature operation or control by temperature change and water level detection, through circulating pump 9 with the water circulation in the heat storage water tank 3 to heat exchanger 2, the heat transfer performance of abundant utilization heat exchanger 2, be provided with on circulating water pipe 8 with rivers from heat storage water tank 3 to the check valve 10 in the heat exchanger 2, can prevent through circulating water pipe 8 among the heat exchanger 2 that water from flowing back to heat storage water tank 3 in through check valve 10.
Referring to fig. 1, a second temperature controller 31 and a second water level 32 are disposed at a top end of the hot water storage tank 3, the second temperature controller 31 is OHR-a300B-02-2-1/P/D, the second water level 32 is HY-136, the second temperature controller 31 is used for detecting a water temperature in the hot water storage tank 3, and the second water level 32 is used for detecting a water level in the hot water storage tank 3.
Referring to fig. 1, when the water level in the hot water storage tank 3 reaches the water level predetermined by the system, but the second temperature controller 32 detects that the temperature of the water in the hot water storage tank 3 is lower than the minimum temperature set by the system, the temperature signal triggers the circulating pump 9 on the circulating water pipe 8 to start the circulating pump 9, so that the water in the hot water storage tank 3 circulates to the heat exchanger 2 to be heated, and when the temperature of the water in the hot water storage tank 3 is equal to the maximum water temperature set by the system, the circulating pump 9 stops working, and the heat exchanger 2 also stops supplying water to the hot water storage tank 3.
Referring to fig. 1, when the temperature in the heat storage tank 3 reaches the temperature set by the system, but the water level in the heat storage water tank 3 is lower than the lowest water level set by the system, the water level signal triggers the circulating pump 9 to stop the circulating pump 9 on the circulating water pipe 8, the heat exchanger 2 supplies water to the heat storage water tank 3, and the water level in the heat storage water tank 3 reaches the water level set by the system.
Referring to fig. 1, when the water temperature in the heat storage water tank 3 reaches the water temperature set by the system, when the water level reaches the highest water level set by the system, the circulating pump 9 stops working at this time, the heat exchanger 2 also stops supplying water into the heat storage water tank 3, but the water temperature in the heat storage water tank 3 gradually drops along with the time change, when the second temperature controller 31 detects that the water temperature is lower than the temperature set by the system, the water temperature signal triggers the circulating pump 9, the circulating pump 9 is started, the water in the heat storage water tank 3 circulates into the heat exchanger 2 through the circulating pump 9, and the water is heated through the heat exchanger 2.
Referring to fig. 1, when the water temperature and the water level both can not reach the value of the system setting, the electricity of the circulating pump 9 is disconnected manually by a user, so that the circulating pump 9 stops working, hot water in the heat exchanger 2 flows into the heat storage water tank 3, in the process of filling hot water into the heat storage water tank 3, the water temperature can not fall to the temperature set by the system, the water in the heat storage water tank 3 reaches the water level set by the system, the circulating pump 9 is powered on by the user, the water in the heat storage water tank 3 is circulated into the heat exchanger 2 to be heated, when the second temperature controller 31 detects that the water temperature reaches the temperature set by the system, the temperature signal of the second temperature controller 31 triggers the circulating pump 9 to stop working.
Referring to fig. 1, a cold water control valve 61 is provided on a cold water pipe 6, a first water level gauge 29 having a model number of HY-136 is provided at the top end of a heat exchanger 2, the first water level gauge 29 is electrically connected to a first thermostat 28, and when the water level in the heat exchanger 2 is lower than the lowest water level detected by the first water level gauge 32, a water level signal of the first water level gauge 29 is transmitted to the cold water control valve 61 of the cold water pipe 6, and at this time, the cold water control valve 61 is opened to supply water to the heat exchanger 2.
Referring to fig. 1 and 2, when water is heated to a certain temperature, inorganic substances in the water form white solid in a heated state, the white solid is the scale, after the solar concentrated water heating system is used for a long time, more scale is accumulated, the scale is attached to the outer wall of a spiral water pipe in a heat exchanger 2 or is deposited in the heat exchanger, when the scale is attached to the spiral water pipe thickly, the heat transfer of the spiral water pipe is slow, in order to improve the heat transfer efficiency, a worker needs to perform scale treatment on the heat exchanger 2 periodically, the scale is deposited in the heat exchanger 2 after the scale treatment, in order to facilitate the discharge of the scale, a scale discharge pipe 25 is arranged at the bottom end of the heat exchanger 2, an end cover 26 is arranged at one end of the scale discharge pipe 25, the end cover 26 is in threaded connection with the scale discharge pipe 25, the opening of the end cover 26 is facilitated by the threaded connection, and in order to enhance the sealing between the end cover, a sealing gasket 27 is arranged between the end cover 26 and the dirt discharge pipe 25, and hot water is prevented from flowing out of the dirt discharge pipe 25 through the sealing gasket 27, so that the waste of the hot water is reduced.
Referring to fig. 1 and 3, in case of insufficient illumination of the sun in consecutive cloudy days or in winter season, the temperature of water does not reach a predetermined temperature value, and in order to facilitate the user to use water, an auxiliary heater 33 is arranged at the other end of the heat storage water tank 3, a connecting pipe 30 is arranged between the auxiliary heater 33 and the heat storage water tank 3, the connecting pipe 30 is provided with a switch valve 35, when a user needs hot water, the user opens the switch valve 35 on the connecting pipe 30 to make the water in the hot water storage tank 3 flow into the auxiliary heater 33, the auxiliary heater 33 is electrically connected, the inner wall of the auxiliary heater 33 is provided with a heating pipe 36, the heating pipe 36 is spirally fixed on the inner wall of the auxiliary heater 33 along the longitudinal direction of the auxiliary heater, and the heating pipe 36 heats the water in the auxiliary heater 33 after being electrified, so that the water is heated to the temperature required by the user and then is supplied to the user.
Referring to fig. 1 and 2, the first water pipe 4, the third water pipe 7, the water return pipe 5 and the circulation pipe 8 are respectively provided with the heat preservation layer 13, and at a lower temperature, the heat preservation layer 13 can not only reduce the speed of water temperature reduction, but also protect the first water pipe 4, the third water pipe 7, the water return pipe 5 and the circulation pipe 8, so as to prevent frost cracks of the first water pipe 4, the third water pipe 7, the water return pipe 5 and the circulation pipe 8 from affecting the normal operation of the solar heat collection system.
Referring to fig. 1, a light-gathering plate 14 is disposed at the bottom end of a solar heat collector 1, the light-gathering plate 14 is shaped like an arc, and sunlight irradiated on the solar heat collector 1 is reflected to the solar heat collector 1 through the light-gathering plate 14, so that the sunlight can be fully utilized, and the heat collection efficiency of the solar heat collector 1 is improved.
The implementation principle of the embodiment is as follows: the water in the solar heat collector 1 is heated through the solar heat collector 1, when the water temperature reaches a preset water temperature, a control valve on a first water pipe 4 is opened after receiving a temperature signal, hot water enters a heat exchanger 2 through the first water pipe 4, cold water in the heat exchanger 2 is heated through heat transfer in the heat exchanger 2, when the cold water in the heat exchanger 2 also reaches the preset water temperature, the hot water in the heat exchanger 2 enters a heat storage water tank 3 through a third water pipe 7 for storage, when a user uses the hot water, the hot water is supplied to the user through the heat storage water tank 3, in order to improve the heat exchange performance of the heat exchanger 2, a circulating pipe 8 is additionally arranged between the heat exchanger 2 and the heat storage water tank 3, a circulating pump 9 is arranged on the circulating pipe 8, the water circulation between the heat exchanger 2 and the heat storage water tank 3 is realized through the circulating pump 9, and the heat exchange performance of, improve heat exchanger 2's heat exchange efficiency, when the weather is cloudy day in succession or illumination not enough, can heat water through auxiliary heater 33, satisfy the user to the hydrothermal demand.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. A solar hot water collecting system comprises a solar heat collector (1), a heat exchanger (2) and a heat storage water tank (3), wherein a water outlet (11) is formed in one side of the top end of the solar heat collector (1), a water inlet (12) is formed in one side of the bottom end of the solar heat collector (1), a hot water inlet (21), a cold water outlet (22) and a cold water inlet (23) are formed in one side of the heat exchanger (2), a hot water outlet (24) is formed in the top end of the heat exchanger (2), a first water pipe (4) is arranged between the water outlet (11) in the solar heat collector (1) and the hot water inlet (21) in the heat exchanger (2), a water return pipe (5) is arranged at the cold water outlet (22), one end of the water return pipe (5) is connected with the water inlet (12) in the solar heat collector (1), hot water outlet (24) department is provided with third water pipe (7), third water pipe (7) are connected its characterized in that with heat storage water tank (3): be provided with between heat exchanger (2) and heat storage water tank (3) circulating pipe (8), the one end and the heat storage water tank (3) of circulating pipe (8) are connected, the other end and the cold water pipe (6) of heat exchanger (2) of circulating pipe (8) are connected, but be provided with intermittent type nature operation's circulating pump (9) on circulating pipe (8), be provided with on circulating pipe (8) and be used for injecing check valve (10) that rivers flowed to heat exchanger (2) from heat storage water tank (3).
2. A solar concentrated hot water system according to claim 1, characterized in that: the top of heat exchanger (2) is provided with first temperature controller (28), the top of heat exchanger (2) is provided with first water level ware (29), be provided with cold water control valve (61) on cold water pipe (6).
3. A solar concentrated hot water system according to claim 1, characterized in that: the heat storage water tank (3) is provided with a second temperature controller (31), and the heat storage water tank (3) is provided with a second water level device (32).
4. A solar concentrated hot water system according to claim 1, characterized in that: a scale discharging pipe (25) is arranged on the other side of the bottom end of the heat exchanger (2), an end cover (26) is arranged on the scale discharging pipe (25), and the end cover (26) and the scale discharging pipe (25) can be in threaded connection.
5. A solar concentrated hot water system according to claim 4, characterized in that: a sealing gasket (27) is arranged between the scale discharging pipe (25) and the end cover (26).
6. A solar concentrated hot water system according to claim 1, characterized in that: the solar energy collecting device is characterized in that a light collecting plate (14) is arranged at the bottom end of the solar energy collector (1), the light collecting plate (14) is installed on the solar energy collector (1), and the shape of the light collecting plate (14) is set to be arc-shaped.
7. A solar concentrated water system according to claim 1, characterized in that one side of the hot water storage tank (3) is provided with an auxiliary heater (33).
8. A solar concentrated hot water system according to claim 1, characterized in that: and heat preservation layers (13) are arranged on the first water pipe (4), the third water pipe (7), the circulating water pipe (8) and the water return pipe (5).
CN202020379481.2U 2020-03-23 2020-03-23 Solar centralized hot water system Active CN211782033U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114413324A (en) * 2022-02-22 2022-04-29 南京港华能源投资发展有限公司第一分公司 Data analysis system and method for efficient central heating of cold and heat source machine room

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114413324A (en) * 2022-02-22 2022-04-29 南京港华能源投资发展有限公司第一分公司 Data analysis system and method for efficient central heating of cold and heat source machine room
CN114413324B (en) * 2022-02-22 2022-11-04 南京港华能源投资发展有限公司第一分公司 Efficient central heating system and method for cold and heat source machine room

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