CN205897542U - Water tank heat accumulation formula heat pump system - Google Patents
Water tank heat accumulation formula heat pump system Download PDFInfo
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- CN205897542U CN205897542U CN201620777606.0U CN201620777606U CN205897542U CN 205897542 U CN205897542 U CN 205897542U CN 201620777606 U CN201620777606 U CN 201620777606U CN 205897542 U CN205897542 U CN 205897542U
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Abstract
本实用新型涉及一种水箱蓄热式热泵系统，包括热泵、水箱、蒸发侧循环水泵、冷凝侧循环水泵、回水三通阀、供水三通阀、温控三通阀和控制器，热泵具有冷凝器、蒸发器，水箱具有补水管、溢流管、排水管、供水管、回水管、人孔、液位计、水箱温度计，供水管经蒸发侧循环水泵与蒸发侧三通阀连通，蒸发侧三通阀与蒸发器、供水三通阀连通，供水三通阀与冷凝器、热水供水总管连通，回水三通阀分别与温控三通阀、冷凝侧循环水泵、热水回水总管连通，温控三通阀与蒸发侧三通阀、回水管、蒸发器连通，冷凝侧循环水泵与冷凝器连通，补水进水管通过补水控制阀与补水管连通，补水控制阀与液位计连接。本实用新型设计合理，简洁实用，环境影响小，供热效率高。
The utility model relates to a heat storage heat pump system of a water tank, comprising a heat pump, a water tank, a circulating water pump on the evaporation side, a circulating water pump on the condensation side, a water return three-way valve, a water supply three-way valve, a temperature control three-way valve and a controller. The heat pump has Condenser, evaporator, and water tank have water supply pipe, overflow pipe, drain pipe, water supply pipe, return water pipe, manhole, liquid level gauge, water tank thermometer, and the water supply pipe is connected to the three-way valve on the evaporation side through the circulating water pump on the evaporation side. The side three-way valve is connected with the evaporator and the water supply three-way valve; the water supply three-way valve is connected with the condenser and the hot water supply main; The main pipe is connected, the temperature control three-way valve is connected with the three-way valve on the evaporation side, the return pipe, and the evaporator, the circulating water pump on the condensation side is connected with the condenser, the water supply inlet pipe is connected with the water supply pipe through the water supply control valve, and the water supply control valve is connected with the liquid level gauge connect. The utility model has the advantages of reasonable design, simplicity and practicality, small environmental impact and high heating efficiency.
Description
技术领域technical field
本实用新型涉及一种水箱蓄热式热泵系统，主要用于各类厂房、民用建筑的工艺热水或空调热水加热用的恒温供水。The utility model relates to a water tank heat storage type heat pump system, which is mainly used for constant temperature water supply for process hot water or air-conditioning hot water heating of various workshops and civil buildings.
背景技术Background technique
热泵技术是近年来在全世界倍受关注的新能源技术，是一种能从自然界的空气、水或土壤中获取低位热能，经过电能做功，提供可被人们所用的高位热能的装置，具有节能环保、安全高效的优点。因此，热泵系统被广泛应用于各类生产企业、酒店、小区供热中心等需要工艺热水或空调热水加热用的场合。但低位热能来源于自然界，受自然条件的制约很大，特别是在北方寒冷地区，热泵机组的蒸发温度降低，供热性能也大幅下降，供水温度更难以达到用户需求。对于空气源热泵，难以解决结霜问题，对于地源热泵，则难以解决地下土壤热不平衡问题。所以目前热泵系统难以应用于北方寒冷地区。Heat pump technology is a new energy technology that has attracted much attention in the world in recent years. It is a device that can obtain low-level heat energy from air, water or soil in nature, and provide high-level heat energy that can be used by people through electric energy. The advantages of environmental protection, safety and high efficiency. Therefore, the heat pump system is widely used in various production enterprises, hotels, residential heating centers and other occasions that require process hot water or air-conditioning hot water heating. However, the low-level heat energy comes from nature and is greatly restricted by natural conditions. Especially in the cold northern regions, the evaporation temperature of the heat pump unit decreases, and the heating performance also drops sharply. It is even more difficult for the water supply temperature to meet the needs of users. For air source heat pumps, it is difficult to solve the problem of frosting, and for ground source heat pumps, it is difficult to solve the problem of underground soil thermal imbalance. Therefore, the current heat pump system is difficult to apply to the cold regions in the north.
发明内容Contents of the invention
本实用新型解决的技术问题是克服现有技术所存在的常规热泵系统在北方寒冷地区供水温度低，供热性能差，用电能耗高的问题，而提供一种水箱蓄热式热泵系统。The technical problem solved by the utility model is to overcome the problems of low water supply temperature, poor heating performance and high energy consumption of conventional heat pump systems existing in the prior art in northern cold regions, and provide a water tank heat storage heat pump system.
本实用新型解决上述技术问题所采用的技术方案是：The technical solution adopted by the utility model to solve the problems of the technologies described above is:
一种水箱蓄热式热泵系统，其特征在于设置有热泵、水箱、蒸发侧循环水泵、冷凝侧循环水泵、回水三通阀、供水三通阀、温控三通阀和控制器，热泵具有冷凝器、蒸发器，水箱具有补水管、溢流管、排水管、供水管、回水管、人孔、液位计、水箱温度计，水箱外包一层保温层，保温层内设有加温装置，供水管经蒸发侧循环水泵与蒸发侧三通阀连通，蒸发侧三通阀与蒸发器、供水三通阀连通，供水三通阀与冷凝器、热水供水总管连通，回水三通阀分别与温控三通阀、冷凝侧循环水泵、热水回水总管连通，温控三通阀与蒸发侧三通阀、回水管、蒸发器连通，冷凝侧循环水泵与冷凝器连通，补水进水管通过补水控制阀与补水管连通，补水控制阀与液位计连接，所述控制器与蒸发侧三通阀、冷凝侧循环水泵、回水三通阀、供水三通阀、温控三通阀、蒸发侧循环水泵、水箱温度计、加温装置均连接，采样或控制它们的操作。A water tank heat storage type heat pump system is characterized in that it is provided with a heat pump, a water tank, a circulating water pump on the evaporation side, a circulating water pump on the condensation side, a water return three-way valve, a water supply three-way valve, a temperature control three-way valve and a controller. The heat pump has Condenser, evaporator, water tank has water supply pipe, overflow pipe, drain pipe, water supply pipe, return pipe, manhole, liquid level gauge, water tank thermometer, water tank is covered with an insulation layer, and a heating device is installed inside the insulation layer. The water supply pipe is connected to the evaporation side three-way valve through the evaporation side circulating water pump, the evaporation side three-way valve is connected to the evaporator and the water supply three-way valve, the water supply three-way valve is connected to the condenser and the hot water supply main pipe, and the return water three-way valve is respectively It is connected with the temperature control three-way valve, the circulating water pump on the condensing side, and the hot water return main pipe. The temperature control three-way valve is connected with the three-way valve on the evaporation side, the return pipe, and the evaporator. The water supply control valve is connected to the water supply pipe, the water supply control valve is connected to the liquid level gauge, and the controller is connected to the three-way valve on the evaporation side, the circulating water pump on the condensation side, the three-way valve for return water, the three-way valve for water supply, and the three-way valve for temperature control , evaporating side circulating water pump, water tank thermometer and heating device are all connected to sample or control their operation.
优选地，所述的蒸发侧三通阀分别连接蒸发侧循环水泵的出口、热泵的蒸发器入口以及供水三通阀的旁通口。蒸发侧三通阀只做流向切换，不做流量控制。Preferably, the evaporation-side three-way valve is respectively connected to the outlet of the evaporation-side circulating water pump, the inlet of the evaporator of the heat pump, and the bypass port of the water supply three-way valve. The three-way valve on the evaporating side only performs flow direction switching, not flow control.
优选地，所述的温控三通阀分别连接回水三通阀的旁通口以及蒸发侧三通阀的直通口。温控三通阀只做流量控制，不做流向切换。Preferably, the temperature-controlled three-way valve is respectively connected to the bypass port of the return water three-way valve and the straight-through port of the evaporation side three-way valve. The temperature-controlled three-way valve is only used for flow control, not for flow direction switching.
优选地，所述的供水三通阀分别连接热泵的冷凝器出口、蒸发侧三通阀的直通口。供水三通阀只做流向切换，不做流量控制。Preferably, the three-way valve for water supply is respectively connected to the outlet of the condenser of the heat pump and the straight-through port of the three-way valve on the evaporation side. The water supply three-way valve only performs flow direction switching, not flow control.
优选地，所述的回水三通阀分别连接冷凝侧循环水泵的入口、温控三通阀的直通口。回水三通阀只做流向切换，不做流量控制。Preferably, the return water three-way valve is respectively connected to the inlet of the circulating water pump on the condensation side and the straight-through port of the temperature control three-way valve. The return water three-way valve only performs flow direction switching, not flow control.
优选地，还设置有供水温度计，供水温度计安装在热水供水总管上并与控制器连接。所述的蒸发侧循环水泵及冷凝侧循环水泵的变频信号、供水三通阀、回水三通阀及蒸发侧三通阀的切换信号、温控三通阀的流量控制信号、供水温度计的温度信号均传送至控制器，由控制器集成、处理及发出动作指令。Preferably, a water supply thermometer is also provided, and the water supply thermometer is installed on the hot water supply main pipe and connected with the controller. The frequency conversion signals of the circulating water pump on the evaporating side and the circulating water pump on the condensing side, the switching signals of the water supply three-way valve, the return water three-way valve and the evaporation side three-way valve, the flow control signal of the temperature control three-way valve, and the temperature of the water supply thermometer All signals are transmitted to the controller, which integrates, processes and issues action commands.
优选地，所述的补水控制阀通过水箱的液位计来控制启闭，低液位时补水控制阀开，高液位时补水控制阀关。Preferably, the opening and closing of the water replenishment control valve is controlled by the liquid level gauge of the water tank, the water replenishment control valve is opened when the liquid level is low, and the water replenishment control valve is closed when the liquid level is high.
优选地，所述水箱供水管连接水箱的底部，回水管连接水箱的顶部。Preferably, the water supply pipe of the water tank is connected to the bottom of the water tank, and the water return pipe is connected to the top of the water tank.
优选地，所述加温装置采用电热丝，所述的电热丝通过水箱温度计输出的温度信号来控制电热丝的发热量，温度低时，增大电流，增大电热丝的发热量，温度高时，减小电流，减小电热丝的发热量。Preferably, the heating device adopts a heating wire, and the heating wire controls the heating value of the heating wire through the temperature signal output by the water tank thermometer. When the temperature is low, increase the current to increase the heating value of the heating wire. , reduce the current and reduce the heating value of the heating wire.
优选地，电热丝仅在谷电时间段运行，利用廉价的谷电加热水箱后蓄热待用，蓄热最终温度为90~95℃。Preferably, the heating wire only runs during the off-peak period, and the cheap off-peak electricity is used to heat the water tank to store heat for later use. The final temperature of the heat storage is 90~95°C.
优选地，所述的水箱内蓄热的高温热水使用时，优先通过蒸发侧循环水泵直接供水使用，并通过温控三通阀来调节供水温度；待水箱内水温降至工艺或空调要求热水温度时，水箱作为低温热源，开启热泵供水使用。Preferably, when the high-temperature hot water stored in the water tank is used, the circulating water pump on the evaporating side is given priority to directly supplying water for use, and the temperature of the water supply is adjusted through the temperature-controlled three-way valve; When the water temperature is high, the water tank is used as a low-temperature heat source, and the heat pump is turned on for water supply.
优选地，所述的水箱的溢流管兼作通气管。Preferably, the overflow pipe of the water tank also serves as a ventilation pipe.
本实用新型提供了一种能够在北方寒冷地区应用，提供持续恒温的热水，满足工艺或空调热水需求的热泵系统，并采用谷电加热水箱并蓄热，大大降低了电热成本。The utility model provides a heat pump system that can be applied in the cold northern regions and can provide continuous and constant temperature hot water to meet the hot water demand of processes or air conditioners, and uses valley electricity to heat the water tank and store heat, which greatly reduces the cost of electric heating.
本实用新型设计合理，简洁实用，热泵蒸发器侧的低温热源来自于蓄热式水箱，可不受室外环境影响，能够保证热泵正常供热效率，提供符合用户温度要求的热水；利用相对廉价的谷电在夜间加热水箱至需要的温度后，蓄热保温，供白天用户使用，大大降低了用电成本；优先采用蓄热水箱内的热水直接供水使用，既能减少热泵用电耗能，又能减少水箱热水随着时间变化的散热损失，同时能够为后续的热泵使用提供合适的低温热源。The utility model is reasonable in design, concise and practical. The low-temperature heat source on the side of the heat pump evaporator comes from the heat storage water tank, which is not affected by the outdoor environment, can ensure the normal heat supply efficiency of the heat pump, and provide hot water that meets the temperature requirements of the user; After Gudian heats the water tank to the required temperature at night, it stores heat and keeps it warm for daytime use, which greatly reduces the cost of electricity consumption; it gives priority to using the hot water in the heat storage tank for direct water supply, which can reduce the power consumption of heat pumps , and can reduce the heat dissipation loss of the hot water in the water tank over time, and at the same time provide a suitable low-temperature heat source for the subsequent use of the heat pump.
附图说明Description of drawings
图1是本实用新型实施例的结构示意图。Fig. 1 is a schematic structural view of an embodiment of the utility model.
图2是本实用新型实施例水箱供水状态示意图。Fig. 2 is a schematic diagram of the water supply state of the water tank of the embodiment of the utility model.
图3是本实用新型实施例热泵供水状态示意图。Fig. 3 is a schematic diagram of the water supply state of the heat pump according to the embodiment of the present invention.
附图标记说明：Explanation of reference signs:
1为热泵、2为冷凝器、3为蒸发器、4为蒸发侧三通阀、5为冷凝侧循环水泵、6为回水三通阀、7为供水三通阀、8为温控三通阀、9为蒸发侧循环水泵、10为液位计、11为水箱温度计、12为补水控制阀、13为溢流管、14为保温层、15为水箱、16为电热丝、17为排水管、18为供水管、19为控制器、20为补水管、21为人孔、22为回水管、23为供水温度计、A为补水进水管、B为热水供水总管、C为热水回水总管。1 is the heat pump, 2 is the condenser, 3 is the evaporator, 4 is the three-way valve on the evaporation side, 5 is the circulating water pump on the condensation side, 6 is the three-way valve for return water, 7 is the three-way valve for water supply, and 8 is the three-way temperature control valve Valve, 9 is the evaporation side circulating water pump, 10 is the liquid level gauge, 11 is the water tank thermometer, 12 is the water supply control valve, 13 is the overflow pipe, 14 is the insulation layer, 15 is the water tank, 16 is the heating wire, 17 is the drain pipe , 18 is the water supply pipe, 19 is the controller, 20 is the water supply pipe, 21 is the manhole, 22 is the water return pipe, 23 is the water supply thermometer, A is the replenishment water inlet pipe, B is the hot water supply main pipe, C is the hot water return water main pipe .
具体实施方式detailed description
参见图1～图3，本实施例包括热泵1、水箱15、蒸发侧循环水泵9、冷凝侧循环水泵5和控制器19。其中，热泵1具有冷凝器2、蒸发器3；水箱15具有补水管20、溢流管13、排水管17、供水管18、回水管22、人孔21、液位计10、水箱温度计11。水箱15外包一层保温层14。热泵系统另设有一个控制器19。还设置有供水温度计23，供水温度计23安装在热水供水总管B上。控制器19与蒸发侧三通阀4、冷凝侧循环水泵5、回水三通阀6、供水三通阀7、温控三通阀8、蒸发侧循环水泵9、水箱温度计11、加温装置均连接，采样或控制它们的操作。Referring to FIG. 1 to FIG. 3 , this embodiment includes a heat pump 1 , a water tank 15 , an evaporation side circulating water pump 9 , a condensation side circulating water pump 5 and a controller 19 . Wherein, heat pump 1 has condenser 2, evaporator 3; The water tank 15 is covered with an insulating layer 14. The heat pump system is additionally provided with a controller 19 . A water supply thermometer 23 is also provided, and the water supply thermometer 23 is installed on the hot water supply main pipe B. Controller 19 and evaporation side three-way valve 4, condensation side circulating water pump 5, return water three-way valve 6, water supply three-way valve 7, temperature control three-way valve 8, evaporation side circulating water pump 9, water tank thermometer 11, heating device connected to, sample or control their operation.
如图2为本实施例水箱15供水状态时的热水流向，水箱15内的高温热水供水经底部的供水管18进入蒸发侧循环水泵9的入口管路，经蒸发侧循环水泵9加压，在蒸发侧三通阀4处流向供水三通阀7，在供水三通阀7处流向热水供水总管B。热水回水总管C的低温热水回水在回水三通阀6处流向温控三通阀8，在温控三通阀8处部分回水与蒸发侧三通阀4直通口流出的高温热水供水混合至用户所需的温度，其余回水经回水管22返回水箱15。热水回水在温控三通阀8处的分流量控制由控制器19根据热水供水总管B的热水温度进行调节。当水箱15内热水温度降至用户所需的温度以下时，开启热泵1，进入热泵供水状态。Figure 2 shows the flow direction of hot water in the water supply state of the water tank 15 in this embodiment. The high-temperature hot water supply in the water tank 15 enters the inlet pipeline of the circulating water pump 9 on the evaporation side through the water supply pipe 18 at the bottom, and is pressurized by the circulating water pump 9 on the evaporation side. , flows to the water supply three-way valve 7 at the evaporation side three-way valve 4, and flows to the hot water supply main pipe B at the water supply three-way valve 7. The low-temperature hot water return water from the hot water return main pipe C flows to the temperature control three-way valve 8 at the return water three-way valve 6, and part of the return water at the temperature control three-way valve 8 flows out from the straight port of the evaporation side three-way valve 4 The high-temperature hot water supply is mixed to the temperature required by the user, and the rest of the return water is returned to the water tank 15 through the return pipe 22 . The split flow control of the hot water return at the temperature-controlled three-way valve 8 is regulated by the controller 19 according to the hot water temperature of the hot water supply main pipe B. When the temperature of the hot water in the water tank 15 drops below the temperature required by the user, the heat pump 1 is turned on to enter the heat pump water supply state.
如图3为本实施例热泵1供水状态时的热水流向，在蒸发侧，水箱15内的低温热水供水经底部的供水管18进入蒸发侧循环水泵9的入口管路，经蒸发侧循环水泵9加压，在蒸发侧三通阀4处流向热泵1的蒸发器3入口，换热冷却后经回水管22返回至水箱15；在冷凝侧，热水回水总管C的回水在回水三通阀6处流向冷凝侧循环水泵5的入口管路，经冷凝侧循环水泵5加压后进入热泵1的冷凝器2入口，换热升温后在供水三通阀7处流向热水供水总管B。Figure 3 shows the flow direction of hot water in the water supply state of the heat pump 1 of this embodiment. On the evaporation side, the low-temperature hot water supply water in the water tank 15 enters the inlet pipeline of the circulating water pump 9 on the evaporation side through the water supply pipe 18 at the bottom, and circulates through the evaporation side. The water pump 9 is pressurized, and flows to the inlet of the evaporator 3 of the heat pump 1 at the three-way valve 4 on the evaporation side, and returns to the water tank 15 through the return pipe 22 after heat exchange and cooling; The water three-way valve 6 flows to the inlet pipeline of the circulating water pump 5 on the condensing side. After being pressurized by the circulating water pump 5 on the condensing side, it enters the inlet of the condenser 2 of the heat pump 1. After heat exchange and temperature rise, it flows to the hot water supply at the water supply three-way valve 7 Manager B.
控制器19在水箱15供水状态时控制供水三通阀7的旁通口开，直通口关，回水三通阀6的旁通口开，直通口关，蒸发侧三通阀4的热泵1侧直通口关，供水三通阀7侧直通口开，温控三通阀8开启，根据热水供水总管B的温度信号进行分流量的调节；热泵1供水状态时控制供水三通阀7的旁通口关，直通口开，回水三通阀6的旁通口关，直通口开，蒸发侧三通阀4的热泵1侧直通口开，供水三通阀7侧直通口关，温控三通阀8关闭；水箱15液位计10低液位报警时，补水控制阀12开，补水至要求液位后，补水控制阀12关；在谷电时间段时，电热丝16启动开始对水箱15进行加热，直至水箱温度计11显示水温到达90~95℃后，停止加热。When the water tank 15 is in the water supply state, the controller 19 controls the bypass port of the water supply three-way valve 7 to open and the straight port to close, the bypass port of the return water three-way valve 6 to open and the straight port to close, and the heat pump 1 of the three-way valve 4 on the evaporation side The side straight port is closed, the side straight port of the water supply three-way valve 7 is opened, the temperature control three-way valve 8 is opened, and the split flow is adjusted according to the temperature signal of the hot water supply main pipe B; when the heat pump 1 is in the water supply state, the water supply three-way valve 7 is controlled. The bypass port is closed, the straight port is open, the bypass port of the return water three-way valve 6 is closed, the straight port is opened, the heat pump 1 side straight port of the evaporation side three-way valve 4 is opened, the water supply three-way valve 7 side straight port is closed, the temperature The control three-way valve 8 is closed; when the water tank 15 liquid level gauge 10 low liquid level alarms, the water replenishment control valve 12 is opened, and after replenishing the water to the required liquid level, the water replenishment control valve 12 is closed; during the valley power time period, the heating wire 16 starts The water tank 15 is heated until the water tank thermometer 11 shows that the water temperature reaches 90-95° C., and then the heating is stopped.
凡是本实用新型设计构思的简单变形或等效替换，应认为落入本实用新型的保护范围。Any simple deformation or equivalent replacement of the design concept of the present utility model shall be deemed to fall within the protection scope of the present utility model.
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| CN201620777606.0U CN205897542U (en) | 2016-07-22 | 2016-07-22 | Water tank heat accumulation formula heat pump system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160124A (en) * | 2019-05-08 | 2019-08-23 | 河北建筑工程学院 | A kind of construction method of heating type hot water storage tank |
| CN111397402A (en) * | 2020-04-20 | 2020-07-10 | 中机国能电力工程有限公司 | Waste heat recovery type cooling water system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160124A (en) * | 2019-05-08 | 2019-08-23 | 河北建筑工程学院 | A kind of construction method of heating type hot water storage tank |
| CN111397402A (en) * | 2020-04-20 | 2020-07-10 | 中机国能电力工程有限公司 | Waste heat recovery type cooling water system |
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