CN101561188A - Novel solar water heating system - Google Patents

Novel solar water heating system Download PDF

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Publication number
CN101561188A
CN101561188A CNA2009100519563A CN200910051956A CN101561188A CN 101561188 A CN101561188 A CN 101561188A CN A2009100519563 A CNA2009100519563 A CN A2009100519563A CN 200910051956 A CN200910051956 A CN 200910051956A CN 101561188 A CN101561188 A CN 101561188A
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heat
water
heating system
pump
collector
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李芃
仇中柱
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Tongji University
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Tongji University
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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

一种新型太阳能热水系统，集热器通过连接管道与一次循环水泵相连形成封闭的集热器循环系统，集热器循环系统还经过换热器；热水箱通过连接管道与二次循环水泵相连形成封闭的热水循环系统，热水循环系统还经过换热器；该集热器循环系统采用乙二醇溶液作为工作介质，在太阳能集热器中作一次循环，通过换热器与二次循环的水进行热交换，可以保证真空管基本不结垢，冬季不结冰，延缓集热效率的衰减，能够延长使用寿命一倍以上。同时本发明还采用新型高效热泵热水器替代电加热系统作为辅助加热，较电辅助加热系统可节电65％以上。

Figure 200910051956

A new type of solar water heating system, the heat collector is connected to the primary circulating water pump through the connecting pipe to form a closed collector circulation system, and the heat collector circulation system also passes through the heat exchanger; the hot water tank is connected to the secondary circulating water pump through the connecting pipe Connected to form a closed hot water circulation system, the hot water circulation system also passes through the heat exchanger; the collector circulation system uses ethylene glycol solution as the working medium, and makes a cycle in the solar collector, and passes through the heat exchanger and the second The heat exchange of the water in the secondary cycle can ensure that the vacuum tube is basically not scaled, does not freeze in winter, delays the decay of heat collection efficiency, and can extend the service life by more than double. At the same time, the present invention also adopts a new high-efficiency heat pump water heater to replace the electric heating system as auxiliary heating, which can save electricity by more than 65% compared with the electric auxiliary heating system.

Figure 200910051956

Description

新型太阳能热水系统 New solar water heating system

技术领域 technical field

本发明涉及一种生活热水系统，特别涉及一种太阳能热水系统。The invention relates to a domestic hot water system, in particular to a solar hot water system.

背景技术 Background technique

太阳能热水系统是利用太阳能集热器收集太阳辐射能把水加热的一种装置，是目前太阳热能应用发展中较有经济价值、技术较成熟且已商业化的一项应用产品。工程上常将“太阳能热水器+辅助电加热系统”替代传统的锅炉用于供应生活用热水。该系统虽较锅炉系统节能，但也有自身的缺点，如集热器结水垢严重、集热效率衰减快、寿命短、冬季易结冰、每年约有1/3-1/2的时间属于气温低或阴雨天需要启动辅助电加热，电辅助加热系统电耗大。The solar water heating system is a device that uses solar heat collectors to collect solar radiation energy to heat water. It is an application product that has economic value, mature technology and has been commercialized in the application and development of solar thermal energy. In engineering, "solar water heater + auxiliary electric heating system" is often used to replace traditional boilers to supply domestic hot water. Although this system is more energy-efficient than the boiler system, it also has its own disadvantages, such as serious scaling of the collector, rapid decay of heat collection efficiency, short life, easy to freeze in winter, and about 1/3-1/2 of the time per year is low temperature Or it is necessary to start auxiliary electric heating on rainy days, and the electric auxiliary heating system consumes a lot of power.

发明内容 Contents of the invention

本发明的目的在于针对现有的太阳能热水器，易结水垢、寿命短、冬季易结冰以及电辅助加热系统电耗大等问题，提出了一种新型太阳能热水系统，其集热器基本不结垢，且冬季不结冰，延缓集热效率的衰减，能够延长使用寿命一倍以上。The purpose of the present invention is to propose a new type of solar water heating system in view of the existing solar water heaters, which are prone to scaling, short life, easy to freeze in winter, and high power consumption of the electric auxiliary heating system. Scaling, and no freezing in winter, delays the decay of heat collection efficiency, and can extend the service life by more than double.

为达到以上目的，本发明的解决方案是：For achieving above object, solution of the present invention is:

一种新型太阳能热水系统，集热器通过连接管道与一次循环水泵相连形成封闭的集热器循环系统，集热器循环系统还经过换热器；热水箱通过连接管道与二次循环水泵相连形成封闭的热水循环系统，热水循环系统还经过换热器；该集热器循环系统内的工作介质为乙二醇溶液。A new type of solar water heating system, the heat collector is connected to the primary circulating water pump through the connecting pipe to form a closed collector circulation system, and the heat collector circulation system also passes through the heat exchanger; the hot water tank is connected to the secondary circulating water pump through the connecting pipe They are connected to form a closed hot water circulation system, and the hot water circulation system also passes through a heat exchanger; the working medium in the heat collector circulation system is ethylene glycol solution.

进一步，其还包括一个辅助加热系统，该辅助加热系统包括新型高效热泵，该新型高效热泵通过连接管道与二次循环水泵相连，并直接连接至热水箱对水箱内水加热。Further, it also includes an auxiliary heating system, which includes a new high-efficiency heat pump, which is connected to the secondary circulation water pump through a connecting pipe, and is directly connected to the hot water tank to heat the water in the water tank.

该新型高效热泵为空气源热泵，水源热泵，土壤源热泵。The new high-efficiency heat pumps are air source heat pumps, water source heat pumps, and soil source heat pumps.

由于采用了以上技术方案，本发明具有以下有益效果：本发明可以保证集热器基本不结垢，冬季不结冰，能够延长使用寿命一倍以上；同时采用新型高效热泵热水器替代电加热系统作为辅助加热，较电辅助加热系统节电65％以上。Due to the adoption of the above technical solutions, the present invention has the following beneficial effects: the present invention can ensure that the heat collector is basically free from fouling, does not freeze in winter, and can prolong the service life by more than double; at the same time, a new type of high-efficiency heat pump water heater is used to replace the electric heating system as Auxiliary heating, saving more than 65% of electricity compared with electric auxiliary heating system.

附图说明 Description of drawings

图1是本发明太阳能热水系统结构示意图。Fig. 1 is a structural schematic diagram of the solar water heating system of the present invention.

具体实施方式 Detailed ways

以下结合附图所示实施例对本发明作进一步的说明。The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

如图1所示，本发明太阳能热水系统包括集热器1、乙二醇溶液2、换热器3、热水箱4、连接管道5、一次循环水泵6、二次循环水泵7、新型高效热泵8。本发明是采用乙二醇溶液2作为工作介质，集热器1通过连接管道5与一次循环水泵6相连并形成封闭的管路循环系统，集热器循环系统通过在其一端的换热器3内对热水箱4内的水进行换热。热水箱4的热水也通过封闭的连接管道5循环换热，热水循环系统的连接管道5还连接有二次循环水泵7，这样将集热器循环系统与热水系统相隔离。因而，在集热器循环系统中的工作介质采用乙二醇溶液2可以保证集热器循环系统不产生水垢，且在冬天也不结冰，可以延长使用寿命。在日照充足，太阳能热水系统能满足热水使用要求时，利用乙二醇溶液2作为工作介质，在太阳能热水器的集热器1中作一次循环，通过换热器3与二次循环的水进行热交换，供应热水。同时本发明采用新型高效热泵热水器8替代传统的电加热系统作为辅助加热，新型高效热泵8通过连接管道5连接二次循环水泵7并直接连接至热水箱4对热水箱4内的水加热。当室外气温低，日照不足，太阳能热水系统不能满足热水使用要求时，需要开启新型高效热泵机组辅助供应热水，新型高效热泵8可以根据现场情况，气候特征、地理位置及经济条件选用空气源热泵，水源热泵，土壤源热泵等高效热泵机组。As shown in Figure 1, the solar water heating system of the present invention includes a heat collector 1, ethylene glycol solution 2, a heat exchanger 3, a hot water tank 4, connecting pipes 5, a primary circulating water pump 6, a secondary circulating water pump 7, a new High efficiency heat pump8. The present invention adopts ethylene glycol solution 2 as the working medium, and the heat collector 1 is connected with the primary circulating water pump 6 through the connecting pipe 5 to form a closed pipeline circulation system, and the heat collector circulation system passes through the heat exchanger 3 at one end thereof. Heat exchange is carried out to the water in the hot water tank 4 inside. The hot water in the hot water tank 4 is also circulated and exchanged heat through the closed connection pipe 5, and the connection pipe 5 of the hot water circulation system is also connected with a secondary circulation water pump 7, so that the heat collector circulation system is isolated from the hot water system. Therefore, the use of ethylene glycol solution 2 as the working medium in the collector circulation system can ensure that the collector circulation system does not generate scale, and does not freeze in winter, which can prolong the service life. When the sunshine is sufficient and the solar water heating system can meet the requirements of hot water use, use ethylene glycol solution 2 as the working medium to make a cycle in the heat collector 1 of the solar water heater, and pass through the heat exchanger 3 and the water in the second cycle Perform heat exchange and supply hot water. At the same time, the present invention adopts a novel high-efficiency heat pump water heater 8 to replace the traditional electric heating system as auxiliary heating. The novel high-efficiency heat pump 8 is connected to the secondary circulating water pump 7 through the connecting pipe 5 and directly connected to the hot water tank 4 to heat the water in the hot water tank 4. . When the outdoor temperature is low, the sunshine is insufficient, and the solar water heating system cannot meet the requirements for hot water use, it is necessary to turn on a new type of high-efficiency heat pump unit to assist in the supply of hot water. High-efficiency heat pump units such as source heat pumps, water source heat pumps, and soil source heat pumps.

新型太阳能热水系统的特点是：①集热器内是乙二醇溶液的一次循环，基本不结水垢，冬季不结冰，可延缓集热效率的衰减，延长使用寿命一倍以上；②采用新型高效热泵代替传统的电加热作为太阳能热水器的辅助热源，由于新型高效热泵的效率高，能效比可达3以上，只需少量的电能驱动压缩机，即使用一份电，能产生三倍于电热水器的热水，较电辅助加热系统节电65％以上。The characteristics of the new solar water heating system are: ①The collector is a cycle of ethylene glycol solution, which basically does not form scale and does not freeze in winter, which can delay the attenuation of heat collection efficiency and prolong the service life by more than double; The high-efficiency heat pump replaces the traditional electric heating as the auxiliary heat source of the solar water heater. Due to the high efficiency of the new high-efficiency heat pump, the energy efficiency ratio can reach more than 3, and only a small amount of electric energy is needed to drive the compressor. The hot water of the water heater saves more than 65% of electricity compared with the electric auxiliary heating system.

以上描述是为便于该领域的普通技术人员能理解和使用本发明。熟悉本领域技术的人员显然可以容易地对这些实施例做出各种修改，并把在此说明的一般原理应用到其他实施例中而不必经过创造性的劳动。因此，本发明不限于上述实施例，本领域人员根据本发明的揭示，对于本发明做出的改进和修改都应该在本发明的保护范围之内。The above description is for those of ordinary skill in the art to understand and use the present invention. It is obvious that those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described here to other embodiments without creative effort. Therefore, the present invention is not limited to the above-mentioned embodiments, and improvements and modifications made by those skilled in the art according to the disclosure of the present invention should fall within the protection scope of the present invention.

Claims (3)

1, a kind of novel solar water heating system, heat collector link to each other with a water circulating pump by connecting pipe and form the heat collector circulatory system of sealing, and the heat collector circulatory system is also passed through heat exchanger; Boiler links to each other with the secondary cycle water pump by connecting pipe and forms the hot water cyclesystem of sealing, and hot water cyclesystem is also passed through heat exchanger; It is characterized in that: the working media in this heat collector circulatory system is an ethylene glycol solution.
2, novel solar water heating system as claimed in claim 1, it is characterized in that: it also comprises an auxiliary heating system, this auxiliary heating system comprises new and effective heat pump, this new and effective heat pump links to each other with the secondary cycle water pump by connecting pipe, and is connected directly to boiler to water heating in the water tank.
3, novel solar water heating system as claimed in claim 2 is characterized in that: this new and effective heat pump is air source heat pump or water resource heat pump or soil source heat pump.
CNA2009100519563A 2009-05-26 2009-05-26 Novel solar water heating system Pending CN101561188A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102654320A (en) * 2012-05-15 2012-09-05 滁州伯恩太阳能科技有限公司 Heating medium system in solar collector
CN102654314A (en) * 2012-05-15 2012-09-05 滁州伯恩太阳能科技有限公司 Plate-frame heat exchanger and water tank connection mechanism
CN102692058A (en) * 2012-06-07 2012-09-26 镇江新梦溪能源科技有限公司 Solar steam jet-type water-cooling air cleaning system
CN102705911A (en) * 2012-06-07 2012-10-03 镇江新梦溪能源科技有限公司 Solar steam jet air cooling air cleaning system
CN103353140A (en) * 2013-07-26 2013-10-16 华东建筑设计研究院有限公司 Solar hot water supplying system and control method thereof
CN103673305A (en) * 2012-09-11 2014-03-26 安徽人人家太阳能有限公司 Integrated flat plate solar heat pump water heater
CN103994492A (en) * 2014-05-29 2014-08-20 宁夏欣达节能技术有限公司 Hot water supply system with solar energy and wall-hung stove linked and intelligent control method
CN104266353A (en) * 2014-09-17 2015-01-07 江苏双志新能源有限公司 Solar coupled air source heat pump system
CN118532823A (en) * 2024-06-26 2024-08-23 中铁第一勘察设计院集团有限公司 Near-zero carbon energy supply system and method for isolated island railway building complex in solar energy-rich area

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102654314B (en) * 2012-05-15 2014-08-06 滁州伯恩太阳能科技有限公司 Plate-frame heat exchanger and water tank connection mechanism
CN102654314A (en) * 2012-05-15 2012-09-05 滁州伯恩太阳能科技有限公司 Plate-frame heat exchanger and water tank connection mechanism
CN102654320B (en) * 2012-05-15 2014-01-22 伯恩太阳能科技有限公司 Heating medium system in solar collector
CN102654320A (en) * 2012-05-15 2012-09-05 滁州伯恩太阳能科技有限公司 Heating medium system in solar collector
CN102692058A (en) * 2012-06-07 2012-09-26 镇江新梦溪能源科技有限公司 Solar steam jet-type water-cooling air cleaning system
CN102705911A (en) * 2012-06-07 2012-10-03 镇江新梦溪能源科技有限公司 Solar steam jet air cooling air cleaning system
CN102692058B (en) * 2012-06-07 2015-07-01 镇江新梦溪能源科技有限公司 Solar steam jet-type water-cooling air cleaning system
CN102705911B (en) * 2012-06-07 2014-07-16 镇江新梦溪能源科技有限公司 Solar steam jet air cooling air cleaning system
CN103673305A (en) * 2012-09-11 2014-03-26 安徽人人家太阳能有限公司 Integrated flat plate solar heat pump water heater
CN103353140A (en) * 2013-07-26 2013-10-16 华东建筑设计研究院有限公司 Solar hot water supplying system and control method thereof
CN103994492A (en) * 2014-05-29 2014-08-20 宁夏欣达节能技术有限公司 Hot water supply system with solar energy and wall-hung stove linked and intelligent control method
CN103994492B (en) * 2014-05-29 2017-04-19 宁夏欣达节能技术有限公司 Hot water supply system with solar energy and wall-hung stove linked and intelligent control method
CN104266353A (en) * 2014-09-17 2015-01-07 江苏双志新能源有限公司 Solar coupled air source heat pump system
CN118532823A (en) * 2024-06-26 2024-08-23 中铁第一勘察设计院集团有限公司 Near-zero carbon energy supply system and method for isolated island railway building complex in solar energy-rich area

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