CN202002350U - Pressure-bearing natural circulating solar water heater - Google Patents
Pressure-bearing natural circulating solar water heater Download PDFInfo
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- CN202002350U CN202002350U CN2011200692748U CN201120069274U CN202002350U CN 202002350 U CN202002350 U CN 202002350U CN 2011200692748 U CN2011200692748 U CN 2011200692748U CN 201120069274 U CN201120069274 U CN 201120069274U CN 202002350 U CN202002350 U CN 202002350U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 210000005239 tubule Anatomy 0.000 claims 4
- 230000008676 import Effects 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 1
- 230000002528 anti-freeze Effects 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- -1 getter Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
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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
本实用新型公开了一种承压自然循环太阳能热水器，包括真空集热管和水箱，还包括设置在水箱的内胆中的换热管，所述换热管的一端与集热器的循环出口连通，另一端与集热器的循环进口连通。所述换热管由粗管和细管相连通组成；细管的最高处高于粗管的最低处。本实用新型换热效果好，而且结构简单，便于维护，防冻能力强，尤其适用于寒冷地区。
The utility model discloses a pressure-bearing natural circulation solar water heater, which comprises a vacuum heat collection tube and a water tank, and also includes a heat exchange tube arranged in the inner tank of the water tank, one end of the heat exchange tube communicates with the circulation outlet of the heat collector , and the other end communicates with the circulation inlet of the collector. The heat exchange tube is composed of a thick tube and a thin tube connected; the highest point of the thin tube is higher than the lowest point of the thick tube. The utility model has good heat exchange effect, simple structure, convenient maintenance and strong antifreeze ability, and is especially suitable for cold regions.
Description
技术领域technical field
本实用新型涉及一种能热水器，尤其涉及一种承压自然循环太阳能热水器。The utility model relates to an energy water heater, in particular to a pressure-bearing natural circulation solar water heater.
背景技术Background technique
太阳能热水器主要由集热器和水箱构成。集热器的功能相当于电热水器中的电热管。和电热水器、燃气热水器不同的是，太阳能集热器利用的是太阳的辐射热量，故而加热时间只能在有太阳照射的时候。目前中国市场上普及的是全玻璃太阳能集热真空管。结构分为外管、内管、选择性吸收涂层、吸气剂、不锈钢卡子、真空夹层等部分。太阳能热水器的水箱一般由内胆、保温层、水箱外壳三部分组成。Solar water heaters are mainly composed of collectors and water tanks. The function of the collector is equivalent to the electric heating tube in the electric water heater. Unlike electric water heaters and gas water heaters, solar collectors use the sun's radiant heat, so the heating time can only be when the sun is shining. At present, all-glass solar collector vacuum tubes are popular in the Chinese market. The structure is divided into outer tube, inner tube, selective absorption coating, getter, stainless steel clip, vacuum interlayer and other parts. The water tank of a solar water heater is generally composed of three parts: an inner tank, an insulation layer, and a water tank shell.
现有承压自然循环式太阳能热水器主要有以下几种换热方式，最常见的一种是水箱中不设专门的换热装置，直接与集热器的进水口和出水口联接起来，水就是循环介质，由于热虹吸作用，水在水箱、集热器及联接的管路中循环，从而把集热器吸收的热量传递给水箱中的水。此种情况循环系统很容易积垢，集热效果下降，在冬季寒冷的天气下也宜造成集热管冻坏的问题。另一种热管式太阳能热水器，热管冷凝段与水箱水接触，热管蒸发段吸收集热管热量通过相变原理不断传递到冷凝段，从而逐渐加热水箱中的水。此种情况，热管与水接触的冷凝段表面温度较高，易积垢，而且热管普遍寿命较短，一旦管内真空度下降，其换热效率大大下降，另外，热管式太阳能热水器安装时也要求热管竖置，如果横置的话，也会大大影响其换热效率。总之，现有承压自然循环式太阳能热水器的换热系统容易结垢，而且系统循环阻力大，整体集热效果差。尤其是防冻效果差。The existing pressurized natural circulation solar water heaters mainly have the following heat exchange methods. The most common one is that there is no special heat exchange device in the water tank, and it is directly connected to the water inlet and outlet of the heat collector. The water is Circulating medium, due to the thermosiphon effect, water circulates in the water tank, heat collector and connected pipelines, thereby transferring the heat absorbed by the heat collector to the water in the water tank. In this case, the circulation system is easy to accumulate scale, and the heat collection effect is reduced. In the cold winter weather, the heat collection tubes should also be frozen and damaged. Another type of heat pipe solar water heater, the condensing section of the heat pipe is in contact with the water in the water tank, and the evaporating section of the heat pipe absorbs the heat of the heat collecting tube and continuously transfers it to the condensing section through the principle of phase change, thereby gradually heating the water in the water tank. In this case, the surface temperature of the condensing section where the heat pipe contacts with water is high, and it is easy to accumulate scale, and the life of the heat pipe is generally short. Once the vacuum degree in the pipe drops, its heat transfer efficiency will be greatly reduced. If the heat pipe is placed vertically, if it is placed horizontally, it will also greatly affect its heat transfer efficiency. In short, the heat exchange system of the existing pressurized natural circulation solar water heater is prone to fouling, and the circulation resistance of the system is large, and the overall heat collection effect is poor. Especially the antifreeze effect is poor.
实用新型内容Utility model content
本实用新型所要解决的技术问题是针对现有技术的不足，提供一种热损失小、防冻效果好、换热效果好的承压自然循环太阳能热水器。The technical problem to be solved by the utility model is to provide a pressure-bearing natural circulation solar water heater with small heat loss, good antifreeze effect and good heat exchange effect for the deficiencies of the prior art.
为解决上述技术问题，本实用新型所采用的技术方案为：一种承压自然循环太阳能热水器，包括真空集热管和水箱，还包括设置在水箱内胆中的换热管，所述换热管的左端与集热器的循环出口连通，右端与集热器的循环进口连通。换热管和集热器组成一个封闭的循环系统，因此，此封闭循环系统内的导热介质基本不会损失，因而热损失小，系统的封闭循环系统的循环阻力也小，换热效果好。In order to solve the above technical problems, the technical solution adopted by the utility model is: a pressure-bearing natural circulation solar water heater, which includes a vacuum heat collecting tube and a water tank, and also includes a heat exchange tube arranged in the inner tank of the water tank, and the heat exchange tube The left end communicates with the circulation outlet of the heat collector, and the right end communicates with the circulation inlet of the heat collector. The heat exchange tube and the heat collector form a closed circulation system. Therefore, the heat transfer medium in the closed circulation system is basically not lost, so the heat loss is small, the circulation resistance of the closed circulation system of the system is also small, and the heat exchange effect is good.
作为本实用新型进一步改进的技术方案，所述换热管由粗管和细管相连通组成，细管的 最高处低于粗管的最低处。加注介质时，而由于细管最高处低于粗管最高处，细管内首先充满导热介质。这样粗管内就能够只冲入部分导热介质，所以粗管内仍有部分空间没有冲入导热介质，从而形成空腔，粗管内的空腔部分能够起到膨胀罐的作用，即给导热介质的热胀冷缩提供一个空间。As a further improved technical solution of the utility model, the heat exchange tube is composed of a thick tube connected with a thin tube, and the highest point of the thin tube is lower than the lowest point of the thick tube. When filling the medium, since the highest point of the narrow tube is lower than the highest point of the thick tube, the thin tube is firstly filled with heat transfer medium. In this way, only part of the heat transfer medium can be flushed into the thick tube, so there is still a part of the space in the thick tube that has not been flushed into the heat transfer medium, thereby forming a cavity. Expansion and contraction provide a space.
作为本实用新型进一步改进的技术方案，所述粗管的左端设有安全阀。As a further improved technical solution of the utility model, a safety valve is provided at the left end of the thick pipe.
作为本实用新型进一步改进的技术方案，所述粗管内的导热介质占据粗管的部分内腔或者充满粗管的全部内腔。占据全部空腔时，需要在外部加一个膨胀罐。As a further improved technical solution of the utility model, the heat transfer medium in the thick tube occupies part of the inner cavity of the thick tube or fills the entire inner cavity of the thick tube. When occupying the entire cavity, an expansion tank needs to be added externally.
作为本实用新型进一步改进的技术方案，细管的外端与粗管的右端相连通，细管自左向右向下倾斜。As a further improved technical solution of the utility model, the outer end of the thin tube is connected with the right end of the thick tube, and the thin tube is inclined downward from left to right.
作为本实用新型进一步改进的技术方案，所述换热管内和集热器内的导热介质为防冻液。As a further improved technical solution of the utility model, the heat transfer medium in the heat exchange tube and the heat collector is antifreeze.
作为本实用新型进一步改进的技术方案，所述换热管的两端固定在内胆的两个端盖上或者固定在内胆的下部筒身上，或者换热管两端一端固定在内胆的其中一个端盖上，另一端固定在内胆的下部筒身上。As a further improved technical solution of the utility model, the two ends of the heat exchange tube are fixed on the two end covers of the inner tank or on the lower body of the inner tank, or the two ends of the heat exchange tube are fixed on the inner tank. On one of the end caps, the other end is fixed on the lower body of the liner.
作为本实用新型进一步改进的技术方案，所述集热器的循环出口与联箱中的热介质管相连通，集热器的循环进口与联箱中的冷介质管相连通。As a further improved technical solution of the utility model, the circulation outlet of the heat collector is connected with the heat medium pipe in the header, and the circulation inlet of the heat collector is connected with the cold medium pipe in the header.
作为本实用新型进一步改进的技术方案，所述集热器采用U型管真空集热管，U型管真空集热管中位于集热器的向阳面的一根与联箱中的热介质管相连通；U型管真空集热管中位于集热器背阴面的一根与联箱中的冷介质管相连通。As a further improved technical solution of the utility model, the heat collector adopts a U-shaped vacuum heat collecting tube, and one of the U-shaped vacuum heat collecting tubes located on the sunny side of the heat collector communicates with the heat medium pipe in the header ; One of the U-shaped tube vacuum heat collecting tubes located on the dark side of the heat collector communicates with the cold medium pipe in the header.
作为本实用新型进一步改进的技术方案，所述U型管真空集热管、热介质管(11)、冷介质管(12)可以是铜管、不锈钢管、钢管或铝管。As a further improved technical solution of the utility model, the U-shaped tube vacuum heat collecting tubes, heat medium tubes (11), and cold medium tubes (12) may be copper tubes, stainless steel tubes, steel tubes or aluminum tubes.
本实用新型采用换热管和集热器所组成的封闭的热循环系统，因此，此封闭循环系统内的介质基本不会损失，因而热损失小，系统的封闭循环系统的循环阻力也小，换热效果好。换热管采用粗管和细管相连通组成的结构。工作时粗管内并没有充满介质，而是还留有一部分的空腔，此空腔能够起到膨胀罐的作用。由于此封闭循环系统内的介质为防冻液，因此本实用新型防冻效果好。总之本实用新型换热效果好，而且结构简单，便于维护，尤其防冻能力强，尤其适用于寒冷地区。The utility model adopts a closed thermal circulation system composed of heat exchange tubes and heat collectors, therefore, the medium in the closed circulation system will not be lost basically, so the heat loss is small, and the circulation resistance of the closed circulation system of the system is also small. Good heat exchange effect. The heat exchange tube adopts a structure composed of thick tubes and thin tubes connected. When working, the thick tube is not filled with medium, but there is still a part of the cavity, which can function as an expansion tank. Since the medium in the closed circulation system is antifreeze, the utility model has a good antifreeze effect. In a word, the utility model has good heat exchange effect, simple structure, easy maintenance, especially strong antifreeze ability, and is especially suitable for cold regions.
附图说明Description of drawings
图1为本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
图2为本实用新型的U型管以及真空集热管联箱连接结构示意图。Fig. 2 is a schematic diagram of the connection structure of the U-shaped tube and the vacuum heat collecting tube header of the present invention.
图3为本实用新型实施例2的结构示意图。Fig. 3 is a schematic structural view of Embodiment 2 of the present utility model.
具体实施方式Detailed ways
实施例1Example 1
参见图1和图2，一种承压自然循环太阳能热水器，包括集热器(1)和水箱(2)，还包括设置在水箱(2)的内胆中的换热管(3)，换热管(3)的两端可以固定在内胆的两个端盖上或者固定在内胆的下部筒身上，或者换热管两端一端固定在内胆包的其中一个端盖上，另一端固定在内胆的下部筒身上。本实施例中换热管(3)的两端固定在内胆的两个端盖上，所述换热管(3)的左端为进口(8)，进口(8)与集热器(1)的循环出口(4)连通。所述集热器(1)采用U型管真空集热管(13)，循环出口(4)与联箱内的热介质管(11)相连通，热管介质(11)与U型管真空集热管(13)中位于集热器(1)的向阳面的一根相连通；换热管(3)的右端为出口(9)，出口(9)与集热器(1)的循环进口(5)连通，循环进口(5)与联箱(10)中的冷介质管(12)相连通，冷介质管(12)U型管真空集热管(13)中位于集热器(1)背阴面的一根相连通。换热管(3)和集热器(1)组成一个封闭的循环系统，此封闭循环系统内的介质为防冻液或者水，本实施例中采用防冻液，防冻液可以适应北方寒冷的气候。防冻液采用高沸点低凝固点而且导热性能好的防冻液，防冻液的凝固点为-10～-50℃，防冻液的沸点，110～250℃。因此，循环时，导热介质从集热器(1)的循环出口(4)经管道进入换热管(3)的进口(8)，然后流经粗管(3-1)和细管(3-2)，再从换热管(3)的出口(9)流出，经管道最后流入集热器(1)的循环进口(5)，完成一个循环。在循环中导热介质基本不会损失，因而热损失小，系统的封闭循环系统的循环阻力也小，换热效果好。所述粗管(3-1)内的防冻液占据粗管(3-1)的部分内腔或者充满粗管(3-1)的全部内腔。占据全部空腔时，需要在外部加一个膨胀罐。本实施例中，防冻液占据粗管(3-1)的部分内腔。所述换热管(3)由位于左端的粗管(3-1)和位于右端的细管(3-2)相连通组成细管(3-2)的最高处低于粗管(3-1)的最高处。细管(3-2)的最高处低于粗管(3-1)的最高处是为了保证当粗管(3-1)内还留有部分空腔时，细管(3-2)内已经充满介质。本实施例中，细管(3-2)的左端与粗管(3-1)的右端相连通，在连接处，细管(3-2)靠近粗管(3-1)的下边缘，而细管(3-2)自左向右向下倾斜。所述粗管(3-1)左端设有安全阀(7)，安全阀(7)可以位于水箱(2)内，也可以伸出水箱(2)外，本实施例中，安全阀(7)伸出水箱(2)外。安全阀(7)用于当换热管(3)内压力过大时，放出部分防冻液。所述U型管真空集热管(13)、热介质管(11)、冷介质管(12)可以是铜管、不锈钢管、钢管或铝管。本实施例中采用铜管。Referring to Figures 1 and 2, a pressurized natural circulation solar water heater includes a heat collector (1) and a water tank (2), and also includes a heat exchange tube (3) arranged in the inner tank of the water tank (2). The two ends of the heat pipe (3) can be fixed on the two end caps of the liner or on the lower body of the liner, or one end of the heat exchange tube can be fixed on one of the end caps of the liner, and the other end It is fixed on the lower cylinder body of the liner. In this embodiment, the two ends of the heat exchange tube (3) are fixed on the two end caps of the inner tank, the left end of the heat exchange tube (3) is the inlet (8), and the inlet (8) is connected to the heat collector (1 ) The circulation outlet (4) is connected. The heat collector (1) adopts a U-shaped vacuum heat collecting tube (13), the circulation outlet (4) is connected with the heat medium pipe (11) in the header, and the heat pipe medium (11) is connected with the U-shaped vacuum heat collecting tube (13) is positioned at the sunny side of heat collector (1) and communicates; ), the circulation inlet (5) is connected with the cold medium pipe (12) in the header (10), and the cold medium pipe (12) U-shaped tube vacuum heat collector (13) is located on the dark side of the heat collector (1) one of the connected. The heat exchange tube (3) and the heat collector (1) form a closed circulation system. The medium in the closed circulation system is antifreeze or water. In this embodiment, antifreeze is used, and the antifreeze can adapt to the cold climate in the north. The antifreeze liquid adopts antifreeze liquid with high boiling point, low freezing point and good thermal conductivity. The freezing point of antifreeze liquid is -10～-50℃, and the boiling point of antifreeze liquid is 110～250℃. Therefore, when circulating, the heat transfer medium enters the inlet (8) of the heat exchange tube (3) through the pipe from the circulation outlet (4) of the heat collector (1), and then flows through the thick tube (3-1) and the thin tube (3-1) -2), and then flow out from the outlet (9) of the heat exchange tube (3), and finally flow into the circulation inlet (5) of the heat collector (1) through the pipeline to complete a cycle. In the circulation, the heat conduction medium will basically not be lost, so the heat loss is small, the circulation resistance of the closed circulation system of the system is also small, and the heat exchange effect is good. The antifreeze in the thick tube (3-1) occupies part of the inner cavity of the thick tube (3-1) or fills the entire inner cavity of the thick tube (3-1). When occupying the entire cavity, an expansion tank needs to be added externally. In this embodiment, antifreeze occupies part of the inner cavity of the thick tube (3-1). The heat exchange tube (3) is connected by a thick tube (3-1) at the left end and a thin tube (3-2) at the right end to form a thin tube (3-2) whose highest point is lower than the thick tube (3-2). 1) the highest point. The highest point of the thin tube (3-2) is lower than the highest point of the thick tube (3-1) in order to ensure that when a part of the cavity is left in the thick tube (3-1), the thin tube (3-2) Already filled with medium. In this embodiment, the left end of the thin tube (3-2) communicates with the right end of the thick tube (3-1), and at the junction, the thin tube (3-2) is close to the lower edge of the thick tube (3-1), And thin tube (3-2) is inclined downward from left to right. The left end of the thick pipe (3-1) is provided with a safety valve (7). The safety valve (7) can be located in the water tank (2) or can extend out of the water tank (2). In this embodiment, the safety valve (7) ) out of the water tank (2). The safety valve (7) is used to release part of the antifreeze when the pressure in the heat exchange tube (3) is too high. The U-shaped tube vacuum heat collecting tubes (13), heat medium tubes (11) and cold medium tubes (12) may be copper tubes, stainless steel tubes, steel tubes or aluminum tubes. Copper tubes are used in this embodiment.
实施例2Example 2
参见图2和图3，本实施例2与实施例1基本相同，相同之处不再详述，不同之处在于粗管为竖直设置，细管(3-2)连接在粗管(3-1)的中部。Referring to Fig. 2 and Fig. 3, present embodiment 2 is basically the same as
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200692748U CN202002350U (en) | 2011-03-16 | 2011-03-16 | Pressure-bearing natural circulating solar water heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200692748U CN202002350U (en) | 2011-03-16 | 2011-03-16 | Pressure-bearing natural circulating solar water heater |
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| CN202002350U true CN202002350U (en) | 2011-10-05 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102909A (en) * | 2011-03-16 | 2011-06-22 | 黄永伟 | Pressure-bearing natural circulation solar water heater |
| CN104964466A (en) * | 2015-07-30 | 2015-10-07 | 海宁伊诺电气有限公司 | Pressure-bearing natural circulation solar water heater |
| CN105571164A (en) * | 2015-08-27 | 2016-05-11 | 胡振华 | Simple air source water heater |
| CN111602021A (en) * | 2017-11-13 | 2020-08-28 | 振兴电子有限责任公司 | Method and apparatus for drying electronic equipment |
-
2011
- 2011-03-16 CN CN2011200692748U patent/CN202002350U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102909A (en) * | 2011-03-16 | 2011-06-22 | 黄永伟 | Pressure-bearing natural circulation solar water heater |
| CN102102909B (en) * | 2011-03-16 | 2013-01-16 | 黄永伟 | Pressure-bearing natural circulation solar water heater |
| CN104964466A (en) * | 2015-07-30 | 2015-10-07 | 海宁伊诺电气有限公司 | Pressure-bearing natural circulation solar water heater |
| CN105571164A (en) * | 2015-08-27 | 2016-05-11 | 胡振华 | Simple air source water heater |
| CN111602021A (en) * | 2017-11-13 | 2020-08-28 | 振兴电子有限责任公司 | Method and apparatus for drying electronic equipment |
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