KR20130127765A - Passive solar hot water system - Google Patents
Passive solar hot water system Download PDFInfo
- Publication number
- KR20130127765A KR20130127765A KR1020120051522A KR20120051522A KR20130127765A KR 20130127765 A KR20130127765 A KR 20130127765A KR 1020120051522 A KR1020120051522 A KR 1020120051522A KR 20120051522 A KR20120051522 A KR 20120051522A KR 20130127765 A KR20130127765 A KR 20130127765A
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- South Korea
- Prior art keywords
- hot water
- temperature
- pipe
- valve
- storage tank
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 352
- 238000005338 heat storage Methods 0.000 claims abstract description 80
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 17
- 239000008400 supply water Substances 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000007710 freezing Methods 0.000 description 17
- 230000008014 freezing Effects 0.000 description 17
- 238000010586 diagram Methods 0.000 description 16
- 230000002265 prevention Effects 0.000 description 8
- 239000008399 tap water Substances 0.000 description 6
- 235000020679 tap water Nutrition 0.000 description 6
- 238000013021 overheating Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 230000004397 blinking Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/005—Hot-water central heating systems combined with solar energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/14—Solar energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/02—Fluid distribution means
- F24D2220/0207—Pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/042—Temperature sensors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/08—Storage tanks
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
Abstract
Description
The present invention relates to a natural circulation solar hot water system, and more particularly, to a system for producing hot water using heat collected by solar heat.
Recently, as the alternative energy for petroleum resources, technologies that generate electricity using solar heat or apply hot water systems are increasing. In accordance with this trend, solar hot water systems that produce hot water using solar heat have been widely commercialized.
Thus, a technology related to a solar hot water system for producing hot water using solar heat has been proposed in Patent Registration Nos. 10-0957593 and 2011-0061175.
Hereinafter, the solar hot water system structure disclosed in Patent Registration Nos. 10-0957593 and 2011-0061175 as prior art will be briefly described.
1 is a block diagram of the entire system of Patent Registration No. 10-0957593 (hereinafter referred to as "
As shown in FIG. 1, the solar thermal machine room of the
However, the solar thermal mechanical room according to the
FIG. 2 is a system configuration diagram of Korean Patent Laid-Open Publication No. 2011-0061175 (hereinafter, referred to as “
The hot water heating apparatus using the solar heat of the
However, the hot water heating device using the solar heat of the
An object of the present invention is to solve the problems of the prior art as described above, while basically preventing the freezing of the heat storage tank and hot water discharge pipe by operating the freeze protection valve appropriately in accordance with the temperature change of the hot water circulation pipe and the temperature of the heat storage tank, When the temperature of hot water rises above the set temperature or falls below the set temperature, the user can easily recognize the emergency situation by voice output and use solar energy without consuming energy when using hot water or through a boiler. It is to provide a natural circulation solar hot water system that makes it easy to recognize whether or not by flashing the lamp.
According to a feature of the present invention for achieving the object as described above, the present invention, a collector for collecting solar heat; A heat storage tank connected through the collector and the collector circulation pipe and performing heat exchange between the working medium in which solar heat is collected and water used for living; A hot water circulation pipe communicating with the heat storage tank and supplied with the water; A first valve provided at one side of the hot water circulation pipe to selectively flow water in the heat storage tank into the hot water circulation pipe by selective opening and closing; A hot water outlet pipe communicating with the other side of the hot water circulation pipe; A second valve provided in the middle of the hot water discharge pipe; And controlling the opening or closing of the first valve when the water temperature T1 of the heat storage tank reaches a first opening temperature Ta or a first closing temperature Tb, for a predetermined portion of the hot water circulation pipe. When the temperature T2 reaches the second opening temperature Ta 'or the second closing temperature Tb', the first valve is opened or closed, and when the opening time of the first valve exceeds the set time, A controller for automatically closing the first valve regardless of the temperature (T2); is achieved through the natural circulation solar hot water system comprising a.
In addition, the present invention is a collector for collecting solar heat; A heat storage tank connected through the collector and the collector circulation pipe and performing heat exchange between the working medium in which solar heat is collected and water used for living; A hot water circulation pipe communicating with the heat storage tank and configured to include a hot water introduction pipe through which water is supplied to the heat storage tank, and a hot water discharge pipe through which water is discharged; A connection pipe communicating the hot water inlet pipe and the hot water discharge pipe with each other; A first valve installed in the branch pipe branched from the connection pipe to selectively flow the water in the heat storage tank into the branch pipe by selective opening and closing; A hot water discharge pipe communicating with the hot water discharge pipe; A second valve provided in the middle of the hot water discharge pipe; A circulation pump provided in the connection pipe and configured to circulate water along the hot water inlet pipe and the hot water discharge pipe through the connection pipe; And controlling the opening or closing of the first valve when the water temperature T1 of the heat storage tank reaches a first opening temperature Ta or a first closing temperature Tb, for a predetermined portion of the hot water circulation pipe. When the temperature T2 reaches the operation temperature or the operation stop temperature, the circulation pump is operated or stopped. When the operation time of the circulation pump exceeds the set time, the circulation pump is operated regardless of the temperature T2. It is achieved through a natural circulation solar hot water system comprising a; controller for controlling to stop the operation automatically.
The apparatus may further include a first connection pipe communicated with the hot water discharge pipe through the second valve, and an auxiliary boiler provided in the middle of the first connection pipe.
In addition, the hot water circulation pipe may be provided around the outside of the hot wire to control the operation through the controller according to the change in the temperature (T2).
In addition, when the water temperature T1 of the heat storage tank is greater than the set temperature Te, the controller closes the second valve to supply water to the load side and then turns on the water, and the water temperature T1 of the heat storage tank is turned on. If less than (Te) may be further provided in a state that the lamp is electrically connected after opening the second valve to heat the water is turned off.
In addition, the controller has a water temperature (T1) of the heat storage tank exceeds the first opening temperature (Ta) of the first valve, or the temperature (T2) for a portion of the hot water circulation pipe is set to the first valve of the first valve. An emergency sound output unit for outputting an emergency sound may be further provided when the temperature is less than 2 the opening temperature Tb.
In addition, the first valve may have a first opening temperature Ta of 93 ° C. ≦ Ta ≦ 97 ° C. and a first closing temperature Tb of 88 ° C. ≦ Ta ≦ 92 ° C.
In addition, the first valve has the second opening temperature Ta 'of 1 ° C≤Ta'≤5 ° C and the second closing temperature Tb' of 8 ° C≤Tb'≤12 ° C, and the circulation The pump may have the operation start temperature Tf in a range of 1 ° C. ≦ Tf ≦ 5 ° C. and the operation stop temperature Td in a range of 8 ° C. ≦ Td ≦ 12 ° C.
In addition, the set temperature Te may be in the range of 40 ° C≤Te≤44 ° C.
In addition, the closing of the first valve or the operation stop time of the circulation pump may be performed when more than 3 to 5 minutes (min) based on the opening start time of the first valve or the operation start time of the circulation pump.
According to the present invention, according to the temperature of the hot water circulating pipe and the temperature change of the heat storage tank, by operating the freeze prevention valve appropriately to basically prevent the freezing of the heat storage tank and the hot water discharge pipe, the temperature of the hot water rises above the set temperature or below the set temperature. In the case of falling, the user can easily recognize the emergency situation by voice, and can easily recognize whether the hot water is used by using solar energy or by boiler without consuming energy. It works.
1 is an overall system circuit diagram according to the
2 is a system configuration diagram according to the
3 is a block diagram of a preferred embodiment of the natural circulation solar hot water system according to the first embodiment of the present invention.
Figure 4 is a block diagram showing the flow of hot water and the working medium in the natural circulation solar hot water system according to a first embodiment of the present invention.
5 is a block diagram of a preferred embodiment of the natural circulation solar hot water system according to a second embodiment of the present invention.
Figure 6 is a configuration diagram showing the operation of the valve and the flow of hot water to prevent freezing in the natural circulation solar hot water system according to a second embodiment of the present invention.
7 is a block diagram of a preferred embodiment of the natural circulation solar hot water system according to a third embodiment of the present invention.
8 is a configuration diagram showing the operation of the valve for the freeze protection and the flow of hot water in the natural circulation solar hot water system according to a third embodiment of the present invention.
The terms or words used in the present specification and claims are intended to mean that the inventive concept of the present invention is in accordance with the technical idea of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to explain its invention in the best way Should be interpreted as a concept.
Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise. Also, the term " part "in the specification means a unit for processing at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software.
Hereinafter, a configuration of an embodiment of a natural circulation solar hot water system according to the present invention will be described in detail with reference to the accompanying drawings.
<First Example >
3 is a block diagram of a preferred embodiment of the natural circulation solar hot water system according to the first embodiment of the present invention, Figure 4 is a hot water and operation in the natural circulation solar hot water system according to the first embodiment of the present invention A schematic diagram showing the flow of media is shown.
According to these drawings, the natural circulation solar
The
The
Although not shown, a portion of the
An operating medium (not shown) flows inside the
The
At this time, the outer tank is in communication with the
The hot
The hot
The hot
The hot
Water, by its nature, has a larger volume of liquid (ice) than liquid. The hot
Therefore, when the temperature of the hot
At this time, since the temperature of the hot
The opening degree of the first valve V1 changes in accordance with the temperature change of the hot
When the temperature T2 of a portion of the hot
The hot
The
When the second valve V2 is a 3-way valve and is turned on through the control of the
The
At this time, the
On the other hand, the
Furthermore, the
The
On the other hand, the natural circulation solar
Hereinafter, in the natural circulation solar
① Overheat prevention
In order to prevent overheating of the
When the first valve (V1) is turned on, the water present in the inner tank of the
That is, when the water temperature (T1) of the
② Freeze prevention
The
When the first valve V1 is turned on, water present in the inner tank of the
That is, when the temperature (T2) for a certain portion of the hot
③ of the first valve ON duration
The
In this way, by controlling the opening time of the first valve (V1) it can be prevented that too much hot water is discharged through the hot
④ Lamp blinks
The
When the lamp L is in the ON state, when the water temperature T1 of the
On the contrary, when the lamp L is in the OFF state, when the water temperature T1 of the
⑤ Emergency sound output
The
For example, when the water temperature T1 of the
In addition, when the temperature (T2) for a predetermined portion of the hot
<2nd Example >
5 is a block diagram of a preferred embodiment of the natural circulation solar hot water system according to the second embodiment of the present invention, Figure 6 is a freeze protection in the natural circulation solar hot water system according to a second embodiment of the present invention A schematic diagram is shown showing the operation of the valve and the flow of hot water.
According to these drawings, the natural circulation solar
The
In particular, freezing prevention may be implemented by the
In this case, the
The
Furthermore, the
If the temperature T2 for a portion of the hot
In the natural circulation solar
On the other hand, the natural circulation solar
<3rd Example >
7 is a block diagram of a preferred embodiment of the natural circulation solar hot water system according to the third embodiment of the present invention, Figure 8 is a freeze protection in the natural circulation solar hot water system according to a third embodiment of the present invention A schematic diagram is shown showing the operation of the valve and the flow of hot water.
According to these drawings, the natural circulation solar
The
The
A check valve may be provided at the
A circulation pump P is provided on the
The circulation pump P is controlled by the
According to the present embodiment, the
When the circulating pump P is operated, water present in the internal tank inside the
Here, the operation stop time of the circulation pump (P) is carried out when 3 to 5 minutes, preferably more than 4 minutes (min) based on the operation start time of the circulation pump (P).
In addition, since the
In the natural circulation solar
As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.
Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the equivalents of the appended claims, as well as the appended claims.
100, 200, 300: Natural circulation solar hot water system
110, 210, 310: collector
112, 212, 312:
134, 234, 334: hot
150, 250, 350: auxiliary boiler 230 ': heating wire
335 connection pipe L: lamp
P: Circulation Pump S1, S2: Sensor
V1, V2: first and second valve
Claims (10)
A heat storage tank connected through the collector and the collector circulation pipe and performing heat exchange between the working medium in which solar heat is collected and water used for living;
A hot water circulation pipe communicating with the heat storage tank and supplied with the water;
A first valve provided at one side of the hot water circulation pipe to selectively flow water in the heat storage tank into the hot water circulation pipe by selective opening and closing;
A hot water outlet pipe communicating with the other side of the hot water circulation pipe;
A second valve provided in the middle of the hot water discharge pipe; And
When the water temperature T1 of the heat storage tank reaches the first opening temperature Ta or the first closing temperature Tb, the first valve is controlled to open or close, and the temperature of a predetermined portion of the hot water circulation pipe When the T2 reaches the second opening temperature Ta 'or the second closing temperature Tb', the first valve is opened or closed, and when the opening time of the first valve exceeds the set time, the temperature is opened. And a controller for automatically closing the first valve irrespective of T2.
A heat storage tank connected through the collector and the collector circulation pipe and performing heat exchange between the working medium in which solar heat is collected and water used for living;
A hot water circulation pipe communicating with the heat storage tank and configured to include a hot water inlet pipe through which water is supplied to the heat storage tank, and a hot water discharge pipe through which water is discharged;
A connection pipe communicating the hot water inlet pipe and the hot water discharge pipe with each other;
A first valve installed in the branch pipe branched from the connection pipe to selectively flow the water in the heat storage tank into the branch pipe by selective opening and closing;
A hot water discharge pipe communicating with the hot water discharge pipe;
A second valve provided in the middle of the hot water discharge pipe;
A circulation pump provided in the connection pipe and configured to circulate water along the hot water inlet pipe and the hot water discharge pipe through the connection pipe; And
When the water temperature T1 of the heat storage tank reaches the first opening temperature Ta or the first closing temperature Tb, the first valve is controlled to open or close, and the temperature of a predetermined portion of the hot water circulation pipe When the T2 reaches the operation temperature or the operation stop temperature, the circulation pump is operated or stopped. When the operation time of the circulation pump exceeds the set time, the circulation pump is automatically operated regardless of the temperature T2. A controller for controlling to stop the operation with; Natural circulation type solar hot water system comprising a.
The natural circulation type solar hot water system further comprises a first boiler connected to the hot water outlet pipe to open and close through the second valve and the auxiliary boiler provided in the middle of the first connection pipe.
The hot water circulation pipe is a natural circulation type solar hot water system, the heating wire is provided around the outside to control the operation through the controller in accordance with the change of the temperature (T2).
When the water temperature T1 of the heat storage tank is greater than the set temperature Te, the controller closes the second valve to supply water to the load side and then turns on the water, and the water temperature T1 of the heat storage tank is set to the set temperature Te. Less than), the natural circulation type solar hot water system further includes a lamp for electrically turning off the lamp after opening the second valve to heat the water.
In the controller, the water temperature T1 of the heat storage tank exceeds the first opening temperature Ta of the first valve, or the temperature T2 for a portion of the hot water circulation pipe is opened in the second valve of the first valve. The natural circulation solar hot water system further comprises an emergency sound output unit for outputting an emergency sound when the temperature is below Ta '.
The first valve is a natural circulation solar hot water system wherein the first opening temperature (Ta) is 93 ℃ ≤ Ta ≤ 97 ℃ range, the first closing temperature (Tb) is 88 ℃ ≤ Tb ≤ 92 ℃ range.
The first valve has the second opening temperature Ta 'of 1 ° C≤Ta'≤5 ° C and the second closing temperature Tb' of 8 ° C≤Tb'≤12 ° C,
The circulation pump is a natural circulation type solar hot water system, the operation start temperature (Tf) is 1 ℃ ≤ Tf ≤ 5 ℃ range and the operation stop temperature (Td) is 8 ℃ ≤ Td ≤ 12 ℃ range.
The set temperature (Te) is a natural circulation type solar hot water system, 40 ℃ ≤ Te ≤ 44 ℃ range.
Closing of the first valve or operation stop time of the circulation pump is a natural circulation solar hot water that is carried out when more than 3 to 5 minutes (min) based on the opening start time of the first valve or the operation start time of the circulation pump. system.
Priority Applications (1)
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KR1020120051522A KR101376058B1 (en) | 2012-05-15 | 2012-05-15 | Passive Solar Hot Water System |
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KR1020120051522A KR101376058B1 (en) | 2012-05-15 | 2012-05-15 | Passive Solar Hot Water System |
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KR20130127765A true KR20130127765A (en) | 2013-11-25 |
KR101376058B1 KR101376058B1 (en) | 2014-03-19 |
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Cited By (1)
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CN108458498A (en) * | 2018-04-16 | 2018-08-28 | 广东万家乐燃气具有限公司 | Hot water apparatus and central hot-water system |
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CN105352198B (en) * | 2015-12-11 | 2017-05-24 | 滨州市甲力太阳能科技有限公司 | Electromagnetic hot water compensator |
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KR200394347Y1 (en) | 2005-06-10 | 2005-09-01 | 정영환 | One body type solar multi heater |
KR101105561B1 (en) * | 2010-05-13 | 2012-01-17 | 주식회사 경동나비엔 | Solar heat system |
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CN108458498A (en) * | 2018-04-16 | 2018-08-28 | 广东万家乐燃气具有限公司 | Hot water apparatus and central hot-water system |
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