CN2708173Y - Air source heat pump water heater with adjustable capacity - Google Patents

Air source heat pump water heater with adjustable capacity Download PDF

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Publication number
CN2708173Y
CN2708173Y CN 200420036700 CN200420036700U CN2708173Y CN 2708173 Y CN2708173 Y CN 2708173Y CN 200420036700 CN200420036700 CN 200420036700 CN 200420036700 U CN200420036700 U CN 200420036700U CN 2708173 Y CN2708173 Y CN 2708173Y
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China
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heat pump
water heater
compressor
connected
air source
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CN 200420036700
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Chinese (zh)
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许煜雄
旷玉辉
孙云康
王如竹
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上海交通大学
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Abstract

An air source heat pump water heater with adjustable capacity of the utility model is composed of a compressor, a gas-liquid segregator, a dry filter, a capillary module, an air-cooled heat exchanger, a condenser coil, a living hot-water tank, a temperature sensor and a controller. Three capillaries with different lengths are designed respectively according to the operating conditions of winter, summer and transition season and the three capillaries are connected in parallel to form the capillary module. Three refrigeration electromagnetic valve are used for controlling on-off of the capillary module. The season energy efficiency ratio of the air source heat pump water heater and the economic performance for running all the yearround can be greatly improved. The draught fan controller with the temperature sensor controls the rotation rate of the axial flow fan according to the degree of superheat of the cold-producing medium at the exit of the evaporator coil detected. Multi-segmentation automatic air conditioning function can be obtained. The evaporator can obtain reasonable air heat energy under any operating condition. The utility model has the advantages of efficient energy-saving, safety, reliability, long service life, simple operation, etc.

Description

容量可调的空气源热泵热水器 Capacity adjustable air source heat pump water heater

技术领域 FIELD

本实用新型涉及一种空气源热泵热水器,尤其涉及一种具有自动容量调节功能的空气源热泵热水器,属于能源类供热及空调技术领域。 The present invention relates to an air source heat pump water heater, in particular, it relates to an air source heat pump water heater having a capacity of automatic adjustment function, belonging to the class of heating and air-conditioning energy technical field.

背景技术 Background technique

目前我国热水器市场上普遍销售的热水器产品为电热水器、燃气热水器和太阳能热水器等。 Currently on the market generally sell our water heater water heater products for electric water heaters, gas water heaters and solar water heaters. 其中,电热水器以消耗大量昂贵的电力为代价,不利于能源的合理利用;燃气热水器在使用中则存在严重的安全隐患,每年因燃气热水器的使用而引发的中毒事件时有报道;常规的太阳能热水器在阴雨天是不能生产热水的,只能依靠电加热来弥补太阳能的不足,从而也存在能源的浪费现象,特别是在一些阴雨天比较多的南方地区使用这种热水器并不十分经济。 Among them, electric water heaters to consume large amounts of expensive electricity expense, is not conducive to the rational use of energy; gas water heater there is a serious security risk in use, it has been reported poisoning incidents each year due to the use of gas water heater triggered; conventional solar water heater in the rainy days can not produce hot water, can only rely on electric heating to compensate for the lack of solar energy, and thus there is waste of energy, the use of this water heater is not very economical, especially in some of the more rainy days in the south. 于是,一种新型的基于热泵循环原理的热水器开始在热水器市场上崭露头角,它是利用蒸发器从周围环境中吸收热能(太阳能、空气或水等),并通过冷凝器将热能释放到水箱中去,从而实现热水的生产。 Accordingly, the heat pump water heater based on a new cycle begins on the principles of the food market emerge, which is an evaporator absorbs thermal energy (solar energy, air or water, etc.) from the surrounding environment, and the thermal energy released by the condenser to the tank in order to achieve the production of hot water. 热泵热水器具有高效节能、可全天候使用、安全可靠等优点,而且实现了能源的低级利用,具有广阔的发展和应用前景。 Heat pump water heaters with high efficiency, all-weather use, safe and reliable, but also to achieve a low-level use of energy, and has a broad development prospects.

目前国内生产和销售的绝大多数空气源热泵热水器都是按冬季工况进行设计和加工的。 Currently the vast majority of domestic production and sales of air-source heat pump water heaters are designed according to winter conditions and processing. 这些热泵热水器在过渡季和夏季工况下运行时,制冷剂蒸发温度(压力)会随着室外空气温度的升高而升高,毛细管两端的压差随之减小,由于毛细管的长度固定,使得流入热泵蒸发器的制冷剂质量流量减少,压缩机吸气过热度增大,进而影响压缩机的容积效率和电机效率,甚至导致压缩机无法正常工作。 The heat pump water heater in the summer season and the transition operation conditions, the refrigerant evaporation temperature (pressure) will increase as the outside air temperature rises, the pressure differential across the capillary decreases, since the length of the capillary tube is fixed, flowing into the evaporator of the heat pump refrigerant mass flow is reduced, the compressor suction superheat is increased, thereby affecting the efficiency and the volumetric efficiency of the compressor motor, or even cause the compressor does not work. 由此可见,按冬季工况设计的毛细管长度并不能完全满足全年运行工况的需要,不仅使得空气源热泵热水器的全年平均供热性能系数难以提高,而且对压缩机的安全、稳定运行以及实际使用寿命产生不良影响。 Thus, in the mode of design according to the capillary length can not fully meet the needs of the operating conditions throughout the year, so that not only the average annual air source heat pump heating coefficient of performance of the heater is difficult to improve, but also the safety of the compressor, and stable operation and adversely affect the actual life. 迄今为止尚未检索到涉及此类问题解决方法的相关专利材料。 So far not retrieve relevant patents involving such materials problem-solving approach.

发明内容 SUMMARY

本实用新型的目的在于针对现有技术的不足,提供一种具有自动容量调节功能的高效热泵热水器,可以有效解决热泵热水器全年运行中的系统匹配及容量调节问题,提高系统的季节能效比(EER)和经济性能。 Object of the present invention for the deficiencies of the prior art, to provide efficient heat pump water heater having a capacity of automatic adjustment function, the system can effectively solve the heat pump water heater operation and the capacity to match the year in question is adjusted to improve system SEER ( EER) and economic performance.

为了实现这样的目的,在本实用新型的技术方案中,采用三根不同长度的毛细管并联组成毛细管组,来代替常规的热泵热水器所采用单一长度的毛细管。 In order to achieve this object, the present invention in the aspect, the use of three different lengths of capillary parallel group consisting of capillaries, a conventional heat pump water heater in place of a single length of capillary used. 三根毛细管的长度分别按照冬季、夏季和过渡季工况进行设计,并采用三只制冷电磁阀加以通断控制。 The length of the capillary, respectively according to three winter, summer and transition season design condition, and uses them to control three cooling-off solenoid valve. 此外,采用了一个带温度传感器的风扇控制器,可根据检测的蒸发盘管出口制冷剂过热度来控制轴流风扇转速,实现多段式的自动风量调节功能,使蒸发器在任何工况下都可以获得合理的空气热能。 In addition, a fan controller using a temperature sensor, an axial flow fan speed can be controlled according to the evaporator coil outlet refrigerant superheat degree detection, automatic multi-stage air volume adjustment function of the evaporator under all operating conditions are you can get a reasonable air heat.

本实用新型由压缩机、气液分离器、干燥过滤器、电磁阀、毛细管组、集流器、风冷换热器、冷凝盘管、生活热水箱、温度传感器及控制器等部件组成。 The components of the compressor of the present invention, gas-liquid separator, drying filters, solenoid valves, capillary group, current collector, air-cooled heat exchanger, condensing coil, life hot water tank, temperature sensors and controllers and other components. 压缩机的排气口与生活热水箱内部的冷凝盘管进口连接,冷凝盘管的出口经干燥过滤器与集流/分流器的一个端口连接,集流/分流器的其余三个端口分别各经一个电磁阀与三根长度不等的毛细管连接,三根毛细管的出口端再由一个集流/分流器并联起来后与蒸发盘管的进口连接,蒸发盘管的出口再经气液分离器与压缩机的吸气口连接,从而形成制冷剂的闭合循环通路。 The remaining three ports connected to a port of the compressor is connected to the exhaust port inside the condenser coil inlet life hot water tank, the outlet of the condenser coil and the dried collector filter / splitter, the flow collector / splitter respectively each through a solenoid valve with three unequal length of the capillary, connecting the inlet evaporator coils of the outlet end of the three capillaries and then connected in parallel by the one current collector / splitter, exit of the evaporator coil and then through the gas-liquid separator and the suction port of the compressor is connected so as to form a closed refrigerant circulation passage.

本实用新型的压缩机采用全封闭旋转式压缩机,在压缩机吸气侧设有气液分离器以防止压缩机产生湿压缩。 The compressor of the present invention fully closed rotary compressor, a gas-liquid separator provided in the suction side of the compressor to prevent the compressor produce wet compression. 毛细管组由三根不同长度的毛细管并联而成,分别采用三只制冷电磁阀进行切换,分别应用于冬季、夏季和春秋季工况。 The three sets of the parallel capillaries of different lengths from the capillary, respectively three cooling solenoid valve is switched, applied respectively in winter, summer, fall and spring conditions. 在毛细管组上游管路上设有干燥过滤器,以避免制冷剂中的水分或杂质造成管路的堵塞。 Capillary drying group upstream of the filter on the pipeline, to prevent the refrigerant moisture or impurities clogging the pipeline. 风冷换热器由蒸发盘管和轴流风扇组成,蒸发盘管为翅片管式结构,轴流风扇由一个带有温度传感器的风扇控制器根据蒸发盘管出口制冷剂过热度进行多段式风量调节。 Air-cooled heat exchanger from the evaporator coil and composition axial fan, the evaporator coils of the fin-tube structure, a multistage axial flow fan by a fan controller with a temperature sensor according to the evaporator coil of the refrigerant outlet superheat degree air volume control. 冷凝盘管为铜管盘制而成的螺旋式结构,直接设置在生活热水箱的底部,利用制冷剂的冷凝热来加热生活热水。 Condensing coil in a spiral structure made from brass disc directly provided at the bottom of the hot water tank life, using condensation heat of the refrigerant to heat domestic hot water. 生活热水箱为承压式结构,水箱内胆由不锈钢板焊制而成,内胆与外壳之间填充聚氨脂发泡保温材料。 Pressurized hot water tank is a living structure, water tank made of a stainless steel plate welded, filled with polyurethane foam insulation material between the liner and the housing. 水箱上部设有一个出水管,下部设有一个进水口。 Upper tank is provided with a water outlet pipe, the lower portion is provided with a water inlet. 水箱的进水口可以直接与城市自来水管网连接,依靠自来水压力将热水从水箱顶部压出。 The water tank may be directly connected to the inlet pipe network city water, water pressure will depend on the pressure of hot water from the top of the tank. 为了尽量减小冷水对箱内温度分层的影响,采用环型的进水管,管壁上设有若干等间距的散流小孔。 To minimize the impact on the cold water tank temperature stratification, using the toroidal type inlet pipe, a diffuser is provided with a plurality of equally spaced holes on the wall. 水箱内部还装有一只铠装的温度传感器,用于测量箱内热水温度。 A temperature sensor inside the water tank is also equipped with an armouring, for measuring the temperature of the hot water tank. 通过控制器用户可在30~60℃范围内任意设热水温度,当水箱内热水温度低于启机温度(为了防止压缩机的频繁启停,控制器自动生成一个低于设定温度5℃的启机温度)时,控制器将自动启动压缩机,直到热水温度达到设定温度时,压缩机自动停机。 The controller can be arbitrarily set by the user of hot water temperature in the range 30 ~ 60 ℃, the tank when the water temperature is lower than the temperature of start up (to prevent frequent starts and stops of the compressor, the controller automatically generates a set temperature below 5 when the temperature ℃ start up), the controller will automatically start the compressor, until the hot water temperature reaches the set temperature, the compressor is automatically shut down.

本实用新型采用三根不同长度的毛细管并联而成毛细管组,采用制冷电磁阀进行切换控制,分别应用于冬季、夏季和春秋季工况,可极大地改善空气源热泵热水器的季节能效比及全年运行的经济性能。 The present invention uses three different lengths from the capillary the capillary parallel group, refrigerating machine using a solenoid valve control switch, respectively is applied in winter, summer, fall and spring conditions, can greatly improve air source heat pump water heater and annual SEER run economic performance. 风冷换热器由蒸发盘管和轴流风扇组成,可根据蒸发盘管出口制冷剂过热度范围,对轴流风扇进行三段式自动风量调节,保证了压缩机的可靠、高效运行。 Air-cooled heat exchanger from the evaporator coil and axial fan composition, according to the evaporator coil of the refrigerant outlet superheat degree range, three stages of an axial flow fan air volume automatically adjusted to ensure the reliability of the compressor, efficient operation. 本实用新型有效解决了热泵热水器全年运行中的系统匹配及容量调节问题,具有高效节能、安全可靠、使用寿命长、操作简单等优点,极具商品化发展和应用前景。 The present invention effectively solves the heat pump water heater system in operation year-round matches and capacity adjustment problems, energy efficient, safe and reliable, long life, simple operation, highly commercial development and application prospects.

附图说明 BRIEF DESCRIPTION

图1为本实用新型的结构示意图。 Figure 1 is a schematic view of the structure of the new utility.

图1中,干燥过滤器1、气液分离器2、集流/分流器3、电磁阀4、蒸发盘管5、轴流风扇6、风扇控制器7、凝水盘8、毛细管9、压缩机10、外壳11、进水口12、水箱内胆13、保温层14、水箱壳体15、出水口16、温度传感器17、控制器18、冷凝盘管19。 In FIG 1, a drying filter, gas-liquid separator 2, the current collector / splitter 3, the solenoid valve 4, an evaporator coil 5, an axial flow fan 6, the fan controller 7, drain pan 8, the capillary 9, the compression 10, housing 11, water inlet 12, water tank 13, insulation layer 14, the tank housing 15, the outlet 16, the temperature sensor 17, a controller 18, a condenser coil 19.

具体实施方式 Detailed ways

为以下结合附图对本实用新型的技术方案作进一步详细描述。 The drawings of the present invention the technical solution as described in further detail below in conjunction.

附图1为本实用新型的整体结构示意图。 BRIEF 1 is a schematic overall novel configuration utility.

如图所示,本实用新型由干燥过滤器1、气液分离器2、集流/分流器3、电磁阀4、蒸发盘管5、轴流风扇6、风扇控制器7、凝水盘8、毛细管9、压缩机10、外壳11、进水口12、水箱内胆13、保温层14、水箱壳体15、出水口16、温度传感器17、控制器18、冷凝盘管19等部件组成。 , The present invention is a filter drier 1, a gas-liquid separator 2, the current collector / splitter 3, the solenoid valve 4, an evaporator coil 5, an axial flow fan 6, the fan controller 7, drain pan 8 , a capillary 9, a compressor 10, a housing 11, water inlet 12, water tank 13, insulation layer 14, the tank housing 15, the outlet 16, the temperature sensor 17, a controller 18, a condenser coil 19 and other components. 压缩机10的排气口与冷凝盘管19的进口连接,冷凝盘管19的出口经干燥过滤器1与集流/分流器3的一个端口连接,集流/分流器3的其余三个端口分别各经一个电磁阀4与三根长度不等的毛细管9连接,三根毛细管9的出口端再由一个集流/分流器3并联起来后与蒸发盘管5的进口连接,蒸发盘管5的出口经气液分离器2与压缩机10的吸气口连接,从而形成制冷剂的闭合循环通路。 Inlet and exhaust port 19 of the condenser coil 10 is connected to the compressor outlet via the dry filter 19, a condensing coil current collector / splitter is connected to a port 3, the current collector / splitter of the remaining three ports 3 respectively, each through a solenoid valve 4 with three unequal length of the capillary 9 is connected, inlet after the outlet end of the three capillaries 9 again splitter 3 in parallel by the one current collector / together with the evaporator coil 5 is connected to outlet of the evaporator coil 5 2 through the gas-liquid separator connected to an intake port of the compressor 10 so as to form a closed refrigerant circulation passage. 凝水盘8设在蒸发盘管5下面,并通过底部一根凝水管将湿空气在蒸发盘管表面结露形成的凝水导出。 Drain pan 8 is provided below the evaporator coil 5, and a condensate line through the bottom of the condensate water in the humid air formed in the evaporator coil surface condensation derived. 轴流风扇6的转速由带有两个温度传感器T的风扇控制器7进行自动控制。 6 is an axial flow fan speed is automatically controlled by the fan controller with two temperature sensors T 7. 风扇控制器7的两个温度传感器T分别设置在蒸发盘管5的进、出口管上,以检测制冷剂的过热度。 Two fan controller T of the temperature sensor 7 are provided on the evaporator coil inlet, the outlet pipe 5, in order to detect the degree of superheat of the refrigerant. 所有上述制冷部件中,除冷凝盘管外均被封装在一外壳11内,作为热泵热水器的室外机。 All the cooling member, in addition to condenser coil are enclosed within a housing 11, a heat pump water heater outdoor unit.

制冷剂的循环过程如下:经毛细管9节流后的液体制冷剂流入蒸发盘管5中,在轴流风扇6的作用下与室外空气进行对流换热,吸收空气中的热量而蒸发,然后经气液分离器2流入压缩机10,被压缩后进入冷凝盘管19,在此将冷凝热释放给水箱内胆13中的水,冷凝后的制冷剂液体经干燥过滤器1、电磁阀4、毛细管9重新流入蒸发盘管5中,由此完成一次循环。 The refrigerant cycle is as follows: through the liquid refrigerant into the evaporator orifice of the capillary tube 9 coils 5, convective heat exchange with the outdoor air under the action of the axial flow fan 6, is evaporated by absorbing heat in the air, then dried gas-liquid separator 10 into the compressor 2, is compressed into the condenser coil 19 where the heat of condensation released to the water in the water container 13, the refrigerant liquid dried filter 1 after condensation, the solenoid valve 4, re capillary 9 into the evaporator coil 5, thereby completing a cycle.

生活热水箱由进水管12、水箱内胆13、保温层14、水箱壳体15、出水管16、温度传感器17、控制器18、冷凝盘管19组成。 Life of the hot water tank inlet pipe 12, a water tank 13, insulation layer 14, the tank housing 15, outlet pipe 16, the temperature sensor 17, a controller 18, a condenser coil 19 composed. 冷凝盘管19设置在内胆13的下部,进水管12和出水管16分别设置在内胆13的底部和顶部,温度传感器17则设置在内胆13的中上部。 Condensing coil 19 is provided at a lower portion of the tank 13, inlet 12 and outlet 16 are provided in the upper top and bottom liner, the temperature sensor 13 is provided at 17 in the liner 13. 进水管12与自来水管网连接,使用热水时打开出水管16上的阀门,利用自来水的压头顶出热水。 Inlet pipe 12 is connected to the water pipe network, open the valve on the hot water outlet pipe 16 o'clock, the tap water head pressure of the hot water. 控制器18嵌在保温层14中,其控制面板则显露在水箱壳体15上。 The controller 18 is embedded in the insulating layer 14, which is exposed on the control panel housing the tank 15. 控制器18以温度传感器17的检测信号作为输入量,可根据用户设定的热水终温(30~60℃)和温度传感器17所检测的水温,实现对压缩机10的自动启停控制。 The controller 18 to detect the signal of the temperature sensor 17 as an input variable, the final temperature (30 ~ 60 ℃) and the temperature sensor 17 detects the temperature, to achieve the automatic start and stop of the compressor 10 is controlled according to the hot water set by the user. 通过控制器18,用户还可根据不同的季节工况对三个电磁阀4的状态进行切换来选择合适的毛细管长度。 18, the user can also select an appropriate capillary length different seasons three state conditions solenoid valve 4 is switched by the controller according to.

Claims (3)

1.一种容量可调的空气源热泵热水器,主要包括蒸发盘管(5)、压缩机(10)、以及放置在生活热水箱中的冷凝盘管(19),其特征在于压缩机(10)的排气口与冷凝盘管(19)的进口连接,冷凝盘管(19)的出口经干燥过滤器(1)与集流/分流器(3)的一个端口连接,集流/分流器(3)的其余三个端口分别各经一个电磁阀(4)与三根长度不等的毛细管(9)连接,三根毛细管(9)的出口端再由一个集流/分流器(3)并联起来后与蒸发盘管(5)的进口连接,蒸发盘管(5)的出口经气液分离器(2)与压缩机(10)的吸气口连接,从而形成制冷剂的闭合循环通路;蒸发盘管(5)和轴流风扇(6)组成风冷换热器,轴流风扇(6)的转速由风扇控制器(7)进行自动控制,嵌在水箱保温层(14)中的控制器(18)以设置在水箱内胆中的温度传感器(17)的检测信号作为输入量,根据用户设定的热水终温自动控制压缩机(10)的启停,并在 A variable capacity air source heat pump water heater, including an evaporator coil (5), the compressor (10), and a condenser coil (19) disposed in life hot water tank, wherein the compressor ( inlet 10) and an exhaust port condenser coil (19) is connected to the condenser coil (19) through the outlet of the drying filter (1) and the collector / splitter (3) is connected to a port, the current collector / splitter the remaining three ports (3), respectively, each through a solenoid valve (4) with three different length of the capillary (9) is connected, three capillary (9) the outlet end and then (3) in parallel by the one current collector / splitter connected to the evaporator coil inlet (5) after it, the evaporator coils (5) of the gas-liquid separator via an outlet (2) and the compressor (10) is connected to the intake port, so as to form a closed refrigerant circulation passage; controlling the evaporation coil (5) and the axial-flow fan (6) consisting of air-cooled heat exchanger, the axial flow fan (6) is automatically controlled by the fan rotational speed controller (7), embedded in the tank insulation (14) (18) to be disposed in the water tank temperature sensor (17) of the detection signal as input, the user set the final temperature of the hot water automatically start and stop the compressor (10), and 同季节工况下对三个电磁阀(4)的状态进行切换。 Seasonal conditions with three state electromagnetic valve (4) is switched.
2.如权利要求1的容量可调的空气源热泵热水器,其特征在于所述的三根毛细管(9)分别按冬季、夏季和过渡季工况进行设计,并分别由三个电磁阀(4)进行通断控制。 2. The capacity of the adjustable air source heat pump water heater as claimed in claim 1, characterized in that said three capillaries (9) respectively in winter and summer seasons, and transition conditions for design, and each of three solenoid valves (4) perform on-off control.
3.如权利要求1的容量可调的空气源热泵热水器,其特征在于所述的风扇控制器(7)带有两个温度传感器(T),分别设在蒸发盘管(5)的进、出口管上,以检测制冷剂的过热度。 Capacity adjustable air source heat pump water heater as claimed in claim 1, characterized in that said fan controller (7) with two temperature sensors (T), are provided in the evaporator coil inlet (5), outlet pipe, to detect the degree of superheat of the refrigerant.
CN 200420036700 2004-06-24 2004-06-24 Air source heat pump water heater with adjustable capacity CN2708173Y (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101451790B (en) 2007-12-05 2010-05-19 广东万和新电气股份有限公司 Horizontal water tank heat exchanger of heat pump water heater
CN101929734A (en) * 2010-09-29 2010-12-29 中原工学院 Solar-air dual-heat-source heat pump water heater
CN101929733A (en) * 2010-09-29 2010-12-29 中原工学院 Solar energy-air-geothermal energy three-heat-source heat pump water heater
CN102563845A (en) * 2012-02-03 2012-07-11 美的集团有限公司 Combined quick-heating heat exchanger
CN102563876A (en) * 2012-02-28 2012-07-11 吴水清 Water tank of air-energy heat pump water heater
CN102893097A (en) * 2010-04-15 2013-01-23 三菱电机株式会社 Controller for water heater system, program for controlling water heater system, and method for operating water heater system
WO2015149413A1 (en) * 2014-03-31 2015-10-08 广东科龙空调器有限公司 Capillary tube throttling device and refrigerating apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101451790B (en) 2007-12-05 2010-05-19 广东万和新电气股份有限公司 Horizontal water tank heat exchanger of heat pump water heater
CN102893097B (en) * 2010-04-15 2015-08-05 三菱电机株式会社 Hot water supply system and hot water supply system control device control program, and method of operating a hot water supply system
CN102893097A (en) * 2010-04-15 2013-01-23 三菱电机株式会社 Controller for water heater system, program for controlling water heater system, and method for operating water heater system
CN101929734A (en) * 2010-09-29 2010-12-29 中原工学院 Solar-air dual-heat-source heat pump water heater
CN101929733A (en) * 2010-09-29 2010-12-29 中原工学院 Solar energy-air-geothermal energy three-heat-source heat pump water heater
CN102563845A (en) * 2012-02-03 2012-07-11 美的集团有限公司 Combined quick-heating heat exchanger
CN102563845B (en) 2012-02-03 2014-06-04 美的集团股份有限公司 Combined quick-heating heat exchanger
CN102563876A (en) * 2012-02-28 2012-07-11 吴水清 Water tank of air-energy heat pump water heater
CN102563876B (en) 2012-02-28 2014-09-03 吴水清 Water tank of air-energy heat pump water heater
WO2015149413A1 (en) * 2014-03-31 2015-10-08 广东科龙空调器有限公司 Capillary tube throttling device and refrigerating apparatus

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