CN108253643A - One kind is that thermal regenerator heat pump couples hot-water heating system and control method with solar energy - Google Patents
One kind is that thermal regenerator heat pump couples hot-water heating system and control method with solar energy Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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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
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Abstract
本发明公开了一种即热蓄热热泵与太阳能耦合热水系统，包括太阳能集热器、即热式套管换热器、盘管静态加热式水箱，太阳能集热器、即热式套管换热器、盘管静态加热式水箱并联连接在水循环回路中，即热式套管换热器、盘管静态加热式水箱还并联连接在制冷剂循环回路中，制冷剂循环回路中还设有风冷蒸发器、压缩机、节流机构。本发明可以在三种运行模式下供应热水，分别是套管冷凝器即热式加热供应热水、盘管静态加热水箱供应热水和太阳能供应热水；盘管静态加热水箱和太阳能水箱为互补水箱，通过内循环可将太阳能热水与盘管静态加热水箱互补，提高系统储热水能力。
The invention discloses a hot water system coupled with an instant heat storage heat pump and solar energy, comprising a solar heat collector, an instant heat sleeve heat exchanger, a coil static heating water tank, a solar heat collector, and an instant heat sleeve The heat exchanger and the coil static heating water tank are connected in parallel in the water circulation circuit, and the instant thermal sleeve heat exchanger and the coil static heating water tank are also connected in parallel in the refrigerant circulation circuit, and the refrigerant circulation circuit is also equipped with Air-cooled evaporator, compressor, throttling mechanism. The present invention can supply hot water in three operating modes, namely the casing condenser instant heating supply hot water, the coil static heating water tank supplying hot water and the solar energy supplying hot water; the coil static heating water tank and the solar water tank are Complementary water tank, through the internal circulation, the solar hot water can be complemented with the static heating water tank of the coil to improve the hot water storage capacity of the system.
Description
技术领域technical field
本发明涉及热泵领域，尤其涉及一种即热蓄热热泵与太阳能耦合热水系统及控制方法。The invention relates to the field of heat pumps, in particular to a hot water system coupled with heat storage heat pumps and solar energy and a control method.
背景技术Background technique
目前，太阳能热水系统在民用建筑中广泛应用，其应用过程中节能环保，但是其运行过程中受气象条件的影响较大，热水的供应稳定性受到很大影响。空气源热泵热水系统，以消耗部分电能，从自然界的空气侧吸取热量来加热生活热水，是一种节能的生活热水供应方案，但是始终还是需要消耗电能，无法充分应用清洁能源。At present, solar water heating system is widely used in civil buildings, and its application process is energy-saving and environmentally friendly. However, its operation is greatly affected by meteorological conditions, and the stability of hot water supply is greatly affected. The air source heat pump hot water system consumes part of the electric energy and draws heat from the natural air side to heat domestic hot water. It is an energy-saving domestic hot water supply solution, but it still needs to consume electric energy and cannot fully utilize clean energy.
发明内容Contents of the invention
本发明的目的是设计一种即热蓄热热泵与太阳能耦合热水系统。The object of the present invention is to design a hot water system coupled with heat storage heat pump and solar energy.
为实现上述发明目的，本发明的技术方案是：一种即热蓄热热泵与太阳能耦合热水系统，包括太阳能集热器、即热式套管换热器、盘管静态加热式水箱，所述太阳能集热器、即热式套管换热器、盘管静态加热式水箱并联连接在水循环回路中，所述太阳能集热器包括太阳能水箱，太阳能水箱内设有水温传感器，所述盘管静态加热式水箱为水温分层水箱，通过中间的隔板将盘管静态加热式水箱分为上下两层，上层为高温水，下层为常温水，隔板可在盘管静态加热式水箱内上下移动；所述水循环回路中设有自来水进水口、自来水出水口、循环水泵，通过第一二通阀控制即热式套管换热器中水流通断，第二二通阀控制盘管静态加热式水箱中水流通断，第三二通阀控制太阳能集热器中水流通断；第四二通阀、第五二通阀控制循环水泵的通断、短路；In order to achieve the purpose of the above invention, the technical solution of the present invention is: a hot water system coupled with heat storage heat pump and solar energy, including a solar collector, an instant thermal casing heat exchanger, and a coil static heating water tank. The solar heat collector, the instant thermal casing heat exchanger, and the coil static heating water tank are connected in parallel in the water circulation circuit. The solar heat collector includes a solar water tank, and a water temperature sensor is arranged in the solar water tank. The coil pipe The static heating water tank is a water temperature stratified water tank. The coil static heating water tank is divided into upper and lower layers through the middle partition, the upper layer is high temperature water, and the lower layer is normal temperature water. Moving; the water circulation circuit is provided with a tap water inlet, a tap water outlet, and a circulating water pump, and the first two-way valve controls the flow of water in the instant thermal sleeve heat exchanger, and the second two-way valve controls the static heating of the coil The water flow in the type water tank is cut off, the third two-way valve controls the water flow in the solar collector to be cut off; the fourth two-way valve and the fifth two-way valve control the on-off and short circuit of the circulating water pump;
所述即热式套管换热器、盘管静态加热式水箱还并联连接在制冷剂循环回路中，制冷剂循环回路中还设有风冷蒸发器、压缩机、节流机构，第六二通阀控制即热式套管换热器中制冷剂通断，第七二通阀控制盘管静态加热式水箱中制冷剂通断。The instant heat-type casing heat exchanger and the coil static heating water tank are also connected in parallel in the refrigerant circulation circuit, and the refrigerant circulation circuit is also equipped with an air-cooled evaporator, a compressor, and a throttling mechanism, the sixth and second The on-off valve controls the on-off of the refrigerant in the instant heat sleeve heat exchanger, and the seventh and two-way valve controls on-off of the refrigerant in the coil static heating water tank.
即热蓄热热泵与太阳能耦合热水系统的控制方法，具体如下：The control method of the heat storage heat pump and solar energy coupled hot water system is as follows:
运行方式一：当水温传感器检测太阳能水箱水温满足使用需求时，第三二通阀、第四二通阀开启，第一二通阀、第二二通阀、第五二通阀关闭，直接采用太阳能水箱供水；Operation mode 1: When the water temperature sensor detects that the water temperature of the solar water tank meets the usage requirements, the third two-way valve and the fourth two-way valve are opened, the first two-way valve, the second two-way valve, and the fifth two-way valve are closed. Solar water tank water supply;
运行方式二：当水温传感器检测太阳能水箱水温不满足使用需求时，第二二通阀开启，第一二通阀、第三二通阀、第四二通阀，第五二通阀关闭，采用盘管静态加热式水箱供水；Operation mode 2: When the water temperature sensor detects that the water temperature of the solar water tank does not meet the use requirements, the second two-way valve is opened, the first two-way valve, the third two-way valve, the fourth two-way valve, and the fifth two-way valve are closed. Coil static heating water tank water supply;
运行方式三：盘管静态加热式水箱供水中，当隔板上升到上层时，第一二通阀开启，第二二通阀、第三二通阀、第四二通阀、第五二通阀关闭，即热式套管换热器开始供水，同时开启第六二通阀，即热式套管换热器通入制冷剂；Operation mode three: coil static heating water tank supplies water, when the partition rises to the upper layer, the first two-way valve opens, the second two-way valve, the third two-way valve, the fourth two-way valve, the fifth two-way valve When the valve is closed, the instant heat exchanger starts to supply water, and at the same time, the sixth two-way valve is opened, and the instant heat exchanger is fed with refrigerant;
运行方式四：即热式套管换热器供水情况下，停止用水后，若太阳能水箱中水温满足温度要求，开启循环水泵，将太阳能水箱热水补充至盘管静态加热式水箱；若太阳能水箱中水温不满足温度要求，启动盘管静态加热式水箱，开启第七二通阀，关闭第六二通阀，盘管静态加热式水箱中常温水被加热，当水温达到设定值，第二二通阀、第三二通阀和第五二通阀阀开启，关闭第四二通阀，启动循环水泵，将盘管静态加热式水箱中热水补充到太阳能水箱，直至太阳能水箱中水温满足温度要求。Operation mode 4: In the case of water supply by the instant thermal casing heat exchanger, after the water is stopped, if the water temperature in the solar water tank meets the temperature requirements, the circulating water pump will be turned on to replenish the hot water from the solar water tank to the coil static heating water tank; if the solar water tank If the medium water temperature does not meet the temperature requirements, start the coil static heating water tank, open the seventh two-way valve, close the sixth two-way valve, and the normal temperature water in the coil static heating water tank will be heated. When the water temperature reaches the set value, the second The two-way valve, the third two-way valve and the fifth two-way valve are opened, the fourth two-way valve is closed, the circulating water pump is started, and the hot water in the coil static heating water tank is replenished to the solar water tank until the water temperature in the solar water tank meets temperature requirements.
本发明的有益效果是：The beneficial effects of the present invention are:
1、本发明可以在三种运行模式下供应热水，分别是套管冷凝器即热式加热供应热水、盘管静态加热水箱供应热水和太阳能供应热水；1. The present invention can supply hot water in three operating modes, which are hot water supplied by instant heating of casing condenser, hot water supplied by coil static heating water tank and hot water supplied by solar energy;
2、本发明盘管静态加热水箱和太阳能水箱为互补水箱，当太阳能充足时，通过内循环可将太阳能热水储存在盘管静态加热水箱，当太阳能不足时，通过内循环可将盘管静态加热水箱热水储存在太阳能水箱，提高系统储热水能力。2. The coil static heating water tank and the solar water tank of the present invention are complementary water tanks. When the solar energy is sufficient, the solar hot water can be stored in the coil static heating water tank through the internal circulation. When the solar energy is insufficient, the coil static water can be stored through the internal circulation. The hot water of the heating water tank is stored in the solar water tank, which improves the hot water storage capacity of the system.
3、优先使用太阳能供应热水，太阳能不足时启用盘管静态加热水箱供应热水，当静态加热盘管水箱处于低水位时，直接启动即热式热泵单元供应热水，保证系统最优的节能运行方案。3. Prioritize the use of solar energy to supply hot water. When the solar energy is insufficient, the coil static heating water tank is used to supply hot water. When the static heating coil water tank is at a low water level, the instant heat pump unit is directly started to supply hot water to ensure the optimal energy saving of the system. Run the scenario.
附图说明Description of drawings
图1为本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
图2为盘管静态加热式水箱结构示意图。Fig. 2 is a structural schematic diagram of a coil static heating water tank.
具体实施方式Detailed ways
下面将结合附图对本发明实施例中的技术方案进行清楚、完整地描述。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.
如图1、2所示，一种即热蓄热热泵与太阳能耦合热水系统，包括太阳能集热器8、即热式套管换热器2、盘管静态加热式水箱3，所述太阳能集热器8、即热式套管换热器2、盘管静态加热式水箱8并联连接在水循环回路A中，所述太阳能集热器8包括太阳能水箱9，太阳能水箱9内设有水温传感器(图中未示出)，所述盘管静态加热式水箱3为水温分层水箱，通过中间的隔板将盘管静态加热式水箱分为上下两层，上层为高温水，下层为常温水，隔板302可在盘管静态加热式水箱3内上下移动；所述水循环回路A中设有自来水进水口1、自来水出水口10、循环水泵7，通过第一二通阀S1控制即热式套管换热器2中水流通断，第二二通阀S2控制盘管静态加热式水箱3中水流通断，第三二通阀S3控制太阳能集热器8中水流通断；第四二通阀S4、第五二通阀S5控制循环水泵7的通断、短路。As shown in Figures 1 and 2, an instant heat storage heat pump and solar energy coupling hot water system includes a solar collector 8, an instant heat sleeve heat exchanger 2, and a coil static heating water tank 3. The solar energy The heat collector 8, the instant thermal casing heat exchanger 2, and the coil static heating water tank 8 are connected in parallel in the water circulation circuit A. The solar heat collector 8 includes a solar water tank 9, and a water temperature sensor is arranged in the solar water tank 9 (not shown in the figure), the coil static heating water tank 3 is a water temperature layered water tank, and the coil static heating water tank is divided into upper and lower layers by a partition in the middle, the upper layer is high temperature water, and the lower layer is normal temperature water , the partition 302 can move up and down in the coil static heating water tank 3; the water circulation circuit A is provided with a tap water inlet 1, a tap water outlet 10, and a circulating water pump 7, and the instant heating is controlled by the first two-way valve S1. The water flow in the casing heat exchanger 2 is cut off, the second two-way valve S2 controls the water flow in the coil static heating water tank 3 to be cut off, the third two-way valve S3 controls the water flow in the solar collector 8 to be cut off; The through valve S4 and the fifth two-way valve S5 control the on-off and short-circuit of the circulating water pump 7 .
所述即热式套管换热器2、盘管静态加热式水箱3还并联连接在制冷剂循环回路B中，制冷剂循环回路B中还设有风冷蒸发器5、压缩机6、节流机构4，第六二通阀a1控制即热式套管换热器2中制冷剂通断，第七二通阀a2控制盘管静态加热式水箱3中制冷剂通断。The instant heat type casing heat exchanger 2 and the coil static heating water tank 3 are also connected in parallel in the refrigerant circulation circuit B, and the refrigerant circulation circuit B is also provided with an air-cooled evaporator 5, a compressor 6, a section In the flow mechanism 4, the sixth two-way valve a1 controls the on-off of the refrigerant in the instant heat exchanger 2, and the seventh two-way valve a2 controls the on-off of the refrigerant in the coil static heating water tank 3.
即热蓄热热泵与太阳能耦合热水系统的控制方法，具体如下：The control method of the heat storage heat pump and solar energy coupled hot water system is as follows:
运行方式一：当水温传感器检测太阳能水箱9水温满足使用需求时，第三二通阀S3、第四二通阀S4开启，第一二通阀S1、第二二通阀S2、第五二通阀S5关闭，直接采用太阳能水箱9供水；Operation mode 1: When the water temperature sensor detects that the water temperature of the solar water tank 9 meets the usage requirements, the third two-way valve S3 and the fourth two-way valve S4 are opened, and the first two-way valve S1, the second two-way valve S2, and the fifth two-way valve are opened. The valve S5 is closed, and the solar water tank 9 is directly used for water supply;
运行方式二：当水温传感器检测太阳能水箱9水温不满足使用需求时，第二二通阀S2开启，第一二通阀S1、第三二通阀S3、第四二通阀S4，第五二通阀S5关闭，采用盘管静态加热式水箱3供水；Operation mode two: When the water temperature sensor detects that the water temperature of the solar water tank 9 does not meet the usage requirements, the second two-way valve S2 is opened, the first two-way valve S1, the third two-way valve S3, the fourth two-way valve S4, the fifth two-way valve The through valve S5 is closed, and the coil static heating water tank 3 is used for water supply;
运行方式三：盘管静态加热式水箱3供水中，当隔板302上升到上层B处时，第一二通阀S1开启，第二二通阀S2、第三二通阀S3、第四二通阀S4、第五二通阀S5关闭，即热式套管换热器2开始供水，同时开启第六二通阀a1，即热式套管换热器2通入制冷剂。Operation mode three: coil static heating water tank 3 supplies water, when the partition 302 rises to the upper layer B, the first two-way valve S1 opens, the second two-way valve S2, the third two-way valve S3, the fourth two-way valve When the one-way valve S4 and the fifth two-way valve S5 are closed, the instant heat exchanger 2 starts to supply water, and at the same time, the sixth two-way valve a1 is opened, and the instant heat exchanger 2 is fed with refrigerant.
运行方式四：即热式套管换热器2供水情况下，停止用水后，若太阳能水箱9中水温满足温度要求，开启循环水泵7，将太阳能水箱9热水补充至盘管静态加热式水箱3；若太阳能水箱9中水温不满足温度要求，启动盘管静态加热式水箱9，开启第七二通阀a2，关闭第六二通阀a1，盘管静态加热式水箱3中常温水被加热，当水温达到设定值，第二二通阀S2、第三二通阀S3和第五二通阀S5开启，关闭第四二通阀S4，启动循环水泵7，将盘管静态加热式水箱3中热水补充到太阳能水箱9，直至太阳能水箱9中水温满足温度要求，提高系统储热水能力。Operation mode 4: In the case of water supply by the instant casing heat exchanger 2, after the water is stopped, if the water temperature in the solar water tank 9 meets the temperature requirements, the circulating water pump 7 is turned on to replenish the hot water from the solar water tank 9 to the coil static heating water tank 3. If the water temperature in the solar water tank 9 does not meet the temperature requirements, start the coil static heating water tank 9, open the seventh two-way valve a2, close the sixth two-way valve a1, and the normal temperature water in the coil static heating water tank 3 is heated , when the water temperature reaches the set value, the second two-way valve S2, the third two-way valve S3 and the fifth two-way valve S5 are opened, the fourth two-way valve S4 is closed, the circulating water pump 7 is started, and the coil static heating water tank The hot water in 3 is replenished to the solar water tank 9 until the water temperature in the solar water tank 9 meets the temperature requirement, thereby improving the system's hot water storage capacity.
所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800612A (en) * | 2018-07-19 | 2018-11-13 | 仲恺农业工程学院 | Solar heat pipe type air source heat pump water heater |
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