CN212299484U - Solar volumetric or semi-volumetric water heater system - Google Patents
Solar volumetric or semi-volumetric water heater system Download PDFInfo
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- CN212299484U CN212299484U CN202020635116.3U CN202020635116U CN212299484U CN 212299484 U CN212299484 U CN 212299484U CN 202020635116 U CN202020635116 U CN 202020635116U CN 212299484 U CN212299484 U CN 212299484U
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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
- Y02E10/44—Heat exchange systems
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Abstract
The utility model relates to a solar energy positive displacement or semi-positive displacement water heater system, which comprises a solar heat collector, a heat collecting water tank and a hot water tank, wherein a heat exchange coil in the heat collecting water tank is connected with an inlet and an outlet of the solar heat collector 1; the circulating water inlet and the water outlet of the hot water tank are communicated through a water circulating pipeline, a hot water inlet pipe connected with the water outlet at the upper part of the heat collecting water tank is arranged in the hot water tank, a three-way valve is arranged on the water circulating pipeline close to the lower end of the hot water tank, and the three-way valve is connected with the water inlet at the lower part of the heat collecting water tank through a heat exchange pipeline. The system heats the heat collection water tank through solar energy, and the heat collection water tank and the hot water tank are subjected to temperature difference circulation, so that the solar energy is fully utilized; the characteristic of low return water temperature is fully utilized, and return water enters the heat collection water tank, so that the solar energy efficiency is higher; the water is supplemented into the heat collecting water tank and then is supplemented into the heat using water tank, so that the heat collecting water tank is fully utilized, the solar energy resource is utilized to the maximum extent, and the use cost of the auxiliary energy is minimized.
Description
Technical Field
The utility model relates to a solar water heater system, especially a solar energy positive displacement or half positive displacement water heater system.
Background
The problem of water outlet volume model selection in the existing solar volumetric (semi-volumetric) water heater combined system is as follows: the water storage capacity in the whole day needs larger volume according to the solar energy type selection; if the volume of the heat storage water tank is selected according to the volume formula (half volume formula) standard and is considered to be 15-40 min & Qh, the heat storage water tank is selected according to the volume formula (half volume formula) standard in practical application, so that the volume of the heat storage water tank in the system is small, the heat storage water tank is overheated, and solar energy is wasted.
The heating starting condition of the volume or positive displacement (semi-volume) water heater is constant temperature starting or timing constant temperature starting, the water tank is heated to a set temperature (assuming 60 ℃), and the basic water temperature heated by the solar system is 60 ℃, so that the solar system is low in efficiency. Solar energy resources are not reasonably utilized, energy is not saved, the solar energy resources cannot be utilized to the maximum extent, and the logical relationship between the solar energy and an auxiliary heating system cannot be well coordinated.
Disclosure of Invention
The utility model aims to solve the technical problem that to prior art not enough, provide a convenient to use, the maximize utilizes solar energy resource to make the lowest solar energy positive displacement or half positive displacement water heater system of auxiliary energy use cost.
The utility model aims to solve the technical problem that the realization is realized through following technical scheme, the utility model relates to a solar energy positive displacement or half positive displacement water heater system, its characteristics are: the solar heat collector comprises a solar heat collector, a heat collecting water tank and a hot water tank, wherein the upper part of the heat collecting water tank is provided with a water outlet, the lower part of the heat collecting water tank is provided with a water inlet, a heat exchange coil is arranged in the heat collecting water tank, and the water inlet and the water outlet of the heat exchange coil are connected with the inlet and the outlet of the solar heat collector through a heat collecting circulation; the hot water tank is characterized in that a circulating water inlet is formed in the lower end of the hot water tank, a water outlet is formed in the upper end of the hot water tank, the circulating water inlet and the water outlet are communicated through a water circulating pipeline, a vertically arranged hot water inlet pipe is arranged in the hot water tank, the lower end of the hot water inlet pipe is arranged at the bottom of the hot water tank, the upper end of the hot water inlet pipe is connected with a water outlet in the upper part of the heat collecting water tank through a hot water pipe, a three-way valve is arranged on the water circulating pipeline close to the circulating water inlet in the lower end of the hot water tank, the three-way valve is connected with a water inlet;
the heat collecting circulation pipeline is provided with a circulating pump P1, the heat exchange pipeline is provided with a circulating pump P2, the water circulation pipeline is provided with a circulating pump P3, the heat exchange pipeline at the water inlet end of the circulating pump P2 is connected with a cold water inlet pipe, and the heat exchange pipeline between the circulating pump P2 and the three-way valve is provided with a one-way valve.
The hot water inlet pipe is arranged at the bottom of the hot water tank, so that hot water from the heat collecting water tank can directly enter the hot water tank and can be quickly and uniformly mixed with water in the hot water tank.
When the three-way valve is switched to cut off the communication with the hot water tank and the water circulation pipeline is communicated with the heat exchange pipeline, the heat collection water tank and the hot water tank can realize that water flows out of the heat collection water tank and enters the hot water tank, water flows out of the hot water tank and is communicated with the heat collection water tank again through the water circulation pipeline and the heat exchange pipeline, and the circulation mode is set to be a channel 1.
When the three-way valve is switched to be cut off and communicated with the heat exchange pipeline and the used water circulation pipeline is communicated with the hot water tank, water discharged from the heat collecting water tank enters the used hot water tank, hot water in the used hot water tank is ejected out to enter the water circulation pipeline and then enters the used hot water tank from the bottom of the used hot water tank, and the circulation mode is set as a passage 2.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, is equipped with temperature sensor T1 at solar collector's exit end, is equipped with temperature sensor T2 in hot water tank, is equipped with temperature sensor T3 in with the hot-water tank, is equipped with temperature sensor T4 on being close to the water circulation pipeline with the hot-water tank.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, and hot water tank all is equipped with the drain with the bottom of hot-water tank, and the top is equipped with the pressure release mouth, is connected with the pressure release pipe on the pressure release mouth, is equipped with the relief valve on the pressure release pipe, is connected with the blow off pipe on the drain, the end and the blow off pipe intercommunication of pressure release pipe.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, all is equipped with the check valve at circulating pump P1, P2, P3's play water end.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, be equipped with auxiliary heating device with the hot-water tank, auxiliary heating device is electric heater or steam heating system.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, be greater than or equal to hot water tank's volume with the volume of hot-water tank.
This system uses through the hot water tank cooperation with the hot-water tank, circulates the heating that realizes with the hot-water tank, and concrete heating cycle process is as follows, earlier with the hot water tank with the hot-water tank fill up water:
firstly, when the temperature T1-T2 is not less than the set temperature, the P1 is started until the temperature T1-T2 is not more than the set temperature, so that the solar system formed by the solar heat collector and the heat exchange coil pipe directly heats the heat collection water tank;
when the temperature T2-T3 is not less than the set temperature, the P2 is started until the temperature T2-T3 is not more than the set temperature, the temperature T2-T3 is not less than the set temperature, which indicates that the temperature of the water in the heat collection water tank is high, hot water in the heat collection water tank is ejected out through the P2 and conveyed to a hot water tank until the temperature T2-T3 is not more than the set temperature; the solar energy is fully utilized by the temperature difference circulation of the heat collection water tank and the hot water tank, so that the use of auxiliary energy can be avoided, and resources are saved;
thirdly, when the temperature T4 is less than or equal to the set temperature and the temperature T2-T4 is greater than or equal to the set temperature, the three-way valve is switched to the passage 1, the P3 is started and is stopped until the temperature T4 is greater than or equal to the set temperature, the hot water in the heat collection water tank is preferentially used for heating the hot water tank, the characteristic that the return water temperature is low is fully utilized, the return water enters the heat collection water tank, tap water is prevented from being directly added, the basic temperature in the heat collection water tank is improved, and therefore the solar energy efficiency is;
and fourthly, when the temperature T4 is less than or equal to the set temperature and the temperature T2-T4 is less than or equal to the set temperature, the three-way valve is switched to the passage 2, the P3 is started until the temperature T4 is more than or equal to the set temperature, and the connection with the heat collecting water tank is cut off at the moment, so that the water temperature in the hot water tank can be increased through the auxiliary heating device, and the use cost of the auxiliary energy is lowest.
When the system uses water, the water is supplemented to the hot water tank through the heat collecting water tank, and the heat collecting water tank is fully utilized.
Compared with the prior art, the system heats the heat collection water tank through solar energy, and the heat collection water tank and the hot water tank are subjected to temperature difference circulation, so that the solar energy is fully utilized; the characteristic of low return water temperature is fully utilized, and return water enters the heat collection water tank, so that the solar energy efficiency is higher; the water is supplemented into the heat collecting water tank and then is supplemented into the heat using water tank, so that the heat collecting water tank is fully utilized, the solar energy resource is utilized to the maximum extent, and the use cost of the auxiliary energy is minimized.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
Referring to the attached drawings, the solar volumetric or semi-volumetric water heater system comprises a solar heat collector 1, a heat collecting water tank 2 and a hot water tank 3, wherein the volume of the hot water tank 3 is larger than or equal to that of the heat collecting water tank 2, and the area of the solar heat collector 1 is selected according to the heat collecting water tank 2. The upper part of the heat collecting water tank 2 is provided with a water outlet, the lower part of the heat collecting water tank 2 is provided with a water inlet, a heat exchange coil is arranged in the heat collecting water tank 2, and the water inlet and the water outlet of the heat exchange coil are connected with the inlet and the outlet of the solar heat collector 1 through a heat collecting circulation pipeline 201. The heat collection circulating pipeline 201 is provided with a circulating pump P1202, and the water outlet ends of the circulating pumps P1202 are provided with one-way valves.
The lower end of the hot water tank 3 is provided with a circulating water inlet, the upper end of the hot water tank is provided with a water outlet, the circulating water inlet and the water outlet are communicated through a water circulating pipeline 10, and a water consuming device such as a water tap is arranged on the water circulating pipeline 10. Be equipped with a vertical hot water inlet tube 301 that sets up in with hot-water tank 3, the lower extreme setting of hot water inlet tube 301 is in the bottom with hot-water tank 3, the upper end of hot water inlet tube 301 passes through hot-water line 4 and links to each other with the delivery port on 2 upper portions of hot-water tank, be equipped with three-way valve 7 on being close to the water circulation pipeline 10 with 3 lower extreme circulation water inlets of hot-water tank, three-way valve 7 is electronic three-way valve, three-way valve 7 passes through heat transfer pipeline 5 and links to each other with the water inlet of 2 lower parts of hot-water tank, three-way. The heat exchange pipeline 5 is provided with a circulating pump P26, the water circulating pipeline 10 is provided with a circulating pump P38, the heat exchange pipeline 5 at the water inlet end of the circulating pump P26 is connected with a cold water inlet pipe, and the heat exchange pipeline 5 between the circulating pump P26 and the three-way valve 7 is provided with a one-way valve. The water outlet ends of the circulating pumps P26 and P38 are also provided with one-way valves. The water in the water tank can be prevented from flowing backwards by using the one-way valve.
Control valves are respectively arranged on the hot water pipe 4, the heat exchange pipeline 5 and the water circulation pipeline 10 which are close to the water inlet and the water outlet of the heat collection water tank 2 and the hot water tank 3. The bottom of thermal-arrest water tank 2 and with hot-water tank 3 all is equipped with the drain, and the top is equipped with the pressure release mouth, is connected with the pressure release pipe on the pressure release mouth, is equipped with the relief valve on the pressure release pipe, is connected with the blow off pipe on the drain, the end and the blow off pipe intercommunication of pressure release pipe.
A temperature sensor T1203 is arranged at the outlet end of the solar heat collector 1, a temperature sensor T2204 is arranged in the heat collecting water tank 2, a temperature sensor T3302 is arranged in the hot water tank 3, and a temperature sensor T4303 is arranged on the water circulation pipeline 10 close to the hot water tank 3. The hot water tank 3 is provided with an auxiliary heating device 9, and the auxiliary heating device 9 is an electric heater or a steam heating system.
When the three-way valve 7 is switched to cut off the communication with the hot water tank 3 and the water circulation pipeline 10 is communicated with the heat exchange pipeline 5, the hot water collecting tank 2 and the hot water tank 3 can realize that water flows out of the hot water collecting tank 2 and enters the hot water tank 3, water flows out of the hot water tank 3 and is communicated with the hot water collecting tank 2 again through the water circulation pipeline 10 and the heat exchange pipeline 5, and the circulation mode is set as the passage 1.
When the three-way valve 7 is switched to be cut off and communicated with the heat exchange pipeline 5 and the used water circulation pipeline 10 is communicated with the hot water tank 3, water discharged from the heat collecting water tank 2 enters the used hot water tank 3, hot water in the used hot water tank 3 is ejected out to enter the water circulation pipeline and then enters the used hot water tank 3 from the bottom of the used hot water tank 3, and the circulation mode is set as the passage 2.
The hot water tank 3's that the hot water tank 2 of this system mutually supports the circulation with hot water tank 3 realizes the heating with hot water tank 3, and specific use is as follows, earlier with hot water tank 2 and with hot water tank 3 fill up water:
firstly, when the temperature T1-T2 is not less than the set temperature, the P1 is started until the temperature T1-T2 is not more than the set temperature, so that the solar system formed by the solar heat collector 1 and the heat exchange coil pipe directly heats the heat collection water tank 2;
when the temperature T2-T3 is not less than the set temperature, the P2 is started until the temperature T2-T3 is not more than the set temperature, the temperature T2-T3 is not less than the set temperature, which indicates that the temperature of the water in the heat collection water tank 2 is high, hot water in the heat collection water tank 2 is ejected out and conveyed to the hot water tank 3 through the P2 until the temperature T2-T3 is not more than the set temperature; the temperature difference between the heat collection water tank 2 and the hot water tank 3 is circulated, so that solar energy is fully utilized, auxiliary energy can be avoided, and resources are saved;
thirdly, when the temperature T4 is less than or equal to the set temperature and the temperature T2-T4 is greater than or equal to the set temperature, the three-way valve 7 is switched to the passage 1, the P3 is started and is stopped until the temperature T4 is greater than or equal to the set temperature, the circulation mode preferentially heats the hot water tank 3 by using hot water in the heat collection water tank 2, the characteristic that the temperature of return water is low is fully utilized, the return water enters the heat collection water tank 2 to avoid directly adding tap water, the basic temperature in the heat collection water tank 2 is improved, and therefore the solar energy efficiency is higher;
when the temperature T4 is less than or equal to the set temperature and the temperature T2-T4 is less than or equal to the set temperature, the three-way valve 7 is switched to the passage 2, the P3 is started until the temperature T4 is more than or equal to the set temperature, and the connection with the heat collecting water tank 2 is cut off at the moment, so that the water temperature in the hot water tank 3 can be increased through the auxiliary heating device, and the use cost of auxiliary energy is lowest;
when the system uses water, the water is supplemented into the heat collecting water tank 2 to the hot water tank 3 to fully utilize the heat collecting water tank 2. The system heats the heat collection water tank 2 by solar energy, and the temperature difference between the heat collection water tank 2 and the hot water tank 3 is circulated, so that the solar energy is fully utilized; the characteristic of low return water temperature is fully utilized, and return water enters the heat collection water tank 2, so that the solar energy efficiency is higher; the water is supplemented into the heat collecting water tank 2 and then is supplemented into the heat using water tank to fully utilize the heat collecting water tank 2, so that the solar energy resource is utilized to the maximum extent, and the use cost of the auxiliary energy is lowest.
Claims (6)
1. A solar positive displacement or semi-positive displacement water heater system, characterized in that: the solar heat collector comprises a solar heat collector, a heat collecting water tank and a hot water tank, wherein the upper part of the heat collecting water tank is provided with a water outlet, the lower part of the heat collecting water tank is provided with a water inlet, a heat exchange coil is arranged in the heat collecting water tank, and the water inlet and the water outlet of the heat exchange coil are connected with the inlet and the outlet of the solar heat collector through a heat collecting circulation; the hot water tank is characterized in that a circulating water inlet is formed in the lower end of the hot water tank, a water outlet is formed in the upper end of the hot water tank, the circulating water inlet and the water outlet are communicated through a water circulating pipeline, a vertically arranged hot water inlet pipe is arranged in the hot water tank, the lower end of the hot water inlet pipe is arranged at the bottom of the hot water tank, the upper end of the hot water inlet pipe is connected with a water outlet in the upper part of the heat collecting water tank through a hot water pipe, a three-way valve is arranged on the water circulating pipeline close to the circulating water inlet in the lower end of the hot water tank, the three-way valve is connected with a water inlet;
the heat collecting circulation pipeline is provided with a circulating pump P1, the heat exchange pipeline is provided with a circulating pump P2, the water circulation pipeline is provided with a circulating pump P3, the heat exchange pipeline at the water inlet end of the circulating pump P2 is connected with a cold water inlet pipe, and the heat exchange pipeline between the circulating pump P2 and the three-way valve is provided with a one-way valve.
2. The solar positive displacement or semi-positive displacement water heater system of claim 1, wherein: the outlet end of the solar heat collector is provided with a temperature sensor T1, the heat collecting water tank is provided with a temperature sensor T2, the hot water tank is provided with a temperature sensor T3, and the water circulation pipeline close to the hot water tank is provided with a temperature sensor T4.
3. The solar positive displacement or semi-positive displacement water heater system of claim 1, wherein: the bottom of thermal-arrest water tank and with the hot-water tank all is equipped with the drain, and the top is equipped with the pressure release mouth, is connected with the pressure release pipe on the pressure release mouth, is equipped with the relief valve on the pressure release pipe, is connected with the blow off pipe on the drain, the end and the blow off pipe intercommunication of pressure release pipe.
4. The solar positive displacement or semi-positive displacement water heater system of claim 1, wherein: the water outlet ends of the circulating pumps P1, P2 and P3 are all provided with one-way valves.
5. The solar positive displacement or semi-positive displacement water heater system of claim 1, wherein: the hot water tank is provided with an auxiliary heating device which is an electric heater or a steam heating system.
6. The solar positive displacement or semi-positive displacement water heater system of claim 1, wherein: the volume of the hot water tank is larger than or equal to that of the heat collection water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020635116.3U CN212299484U (en) | 2020-04-24 | 2020-04-24 | Solar volumetric or semi-volumetric water heater system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020635116.3U CN212299484U (en) | 2020-04-24 | 2020-04-24 | Solar volumetric or semi-volumetric water heater system |
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| Publication Number | Publication Date |
|---|---|
| CN212299484U true CN212299484U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020635116.3U Active CN212299484U (en) | 2020-04-24 | 2020-04-24 | Solar volumetric or semi-volumetric water heater system |
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|---|---|
| CN (1) | CN212299484U (en) |
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2020
- 2020-04-24 CN CN202020635116.3U patent/CN212299484U/en active Active
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