WO2022000168A1 - 一种基于相变储能材料蓄冷罐的水蓄冷系统 - Google Patents

一种基于相变储能材料蓄冷罐的水蓄冷系统 Download PDF

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WO2022000168A1
WO2022000168A1 PCT/CN2020/098862 CN2020098862W WO2022000168A1 WO 2022000168 A1 WO2022000168 A1 WO 2022000168A1 CN 2020098862 W CN2020098862 W CN 2020098862W WO 2022000168 A1 WO2022000168 A1 WO 2022000168A1
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water
cold storage
phase change
energy storage
storage tank
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PCT/CN2020/098862
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French (fr)
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陈振乾
张田田
许波
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南京达实能源技术有限公司
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Publication of WO2022000168A1 publication Critical patent/WO2022000168A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater

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  • the invention belongs to the technical field of water cold storage engineering, and more particularly relates to a water cold storage system based on a phase change energy storage material cold storage tank.
  • phase change energy storage materials have received extensive attention and research due to their outstanding energy storage properties; since phase change energy storage methods use the latent heat of phase change of materials to store energy, they have the characteristics of high heat storage efficiency.
  • Phase change energy storage materials can be mainly divided into solid-liquid phase transition and solid-solid phase transition according to the phase transition form.
  • solid-liquid phase change materials are the most widely used due to their large latent heat of phase transition and wide phase transition temperature range; however, due to their fluidity and easy leakage after endothermic phase transition, in practical applications It needs to be encapsulated.
  • the purpose of the present invention is to optimize the cold storage tank device of the water cold storage system, because in some engineering applications of the water cold storage system, in order to avoid the mixing disturbance of the return hot water and the chilled water, a separate return hot water storage tank is needed. In this way, the cost of the water storage project will be greatly increased; at the same time, even if the integrated water storage system using the natural stratification method is adopted, the thickness of the thermocline layer produced by it should reach 50-100cm, which greatly reduces the cost of the water storage system. cooling efficiency.
  • the present invention provides a water cold storage system based on a phase change energy storage material cold storage tank.
  • a water cold storage system based on a phase change energy storage material cold storage tank comprising a cold storage system, a cold storage tank (100), a cooling system and an automatic control system, the cold storage system comprising a refrigeration unit (201), a circulating pump (202), A cooling valve (203) and a cooling valve (204);
  • the cold storage tank (100) includes a water return port (102), a top cover (103), an upper water distributor (104), a tank body (105), a phase change An energy storage layer (106), a lower water distributor (109) and a water outlet (110); wherein the phase change energy storage layer (106) comprises an encapsulation shell (107) and a phase change material (108);
  • the discharge The cooling system includes a cooling valve (303), a cooling valve (304) and a cooling pump (302) at the user air conditioning end (301), wherein the cooling pump (302) is connected to an uninterruptible power supply (305);
  • the cold storage tank (100) comprises a water return port (102), a top cover (103), an upper water distributor (104), a tank body (105), a phase change material energy storage layer (106), and a lower water distributor (110) ) and a water outlet (111),
  • the water return port (102) is located at the center of the top cover (103), and is nested and connected to the upper water distributor (104) through a hole (113);
  • the upper water distributor (104) ) comprises a dividing plate (114), a permeating plate (115), a channel (116) and a groove (117), the dividing plate (114) is welded to the permeating plate (115) in turn, and the channel (116) runs through the permeating plate (115);
  • the phase-change energy storage layer (106) includes an encapsulation shell (107), a phase-change material (108) and a channel (109), the phase-change material (108) is located inside the encapsulation shell (107), and the channel (109) runs through the package The casing (
  • the water outlet (110) of the cold storage tank (100) is connected to the user's air-conditioning end (301) through the cooling valve (303) and the cooling pump (302); the water return port ( 102) is connected to the user air conditioner end (301) through the cooling valve (304).
  • phase-change energy storage layer (106) is used in the cold storage tank (100) as a separation layer between chilled water and return hot water.
  • the package shell (107) in the phase change energy storage layer (106) is made of aluminum material with high thermal conductivity, and the phase change temperature of the internal phase change material (108) is 4-6°C.
  • phase change material (108) is a composite phase change material obtained by mixing tetradecane and formic acid in proportion.
  • the upper water distributor (104) and the top cover (103) are nested and connected through the channel (113); the guide plate (114) is welded on the permeable plate (115) at equal intervals.
  • the guide plate (114) on the upper water distributor (104) faces the top cover (103), and the permeable plate (115) is distributed with through holes (116) to optimize the water distribution effect.
  • the deflector (114) on the lower water distributor (110) faces away from the bottom cover (112) to optimize the water distribution effect.
  • the automatic control system (101) is equipped with a chip, and the position of the phase-change energy storage layer (106) is adjusted by writing a program to the signal from the flowmeter (205) of the water outlet;
  • the phase-change energy storage layer automatically rises to the top of the cold storage tank (100).
  • phase change energy storage layer can isolate the chilled water from the return hot water. Further, when the return hot water passes through the channel 109 on the phase change energy storage layer 106, the phase change material melts and absorbs heat to cool it, thereby ensuring freezing
  • the weak disturbance between the water and the returning hot water can form a small thermocline layer as much as possible; at the same time, the phase change energy storage layer can use the valley price electricity in the cold storage process to cool down and improve the overall efficiency of the system; and the phase change energy storage layer
  • the layers can be recycled, which is very economical.
  • FIG. 1 is a schematic diagram of a water cold storage system based on a phase change energy storage material cold storage tank of the present invention
  • Figure 2 is a schematic cross-sectional view of a cold storage tank
  • Fig. 3 is the interface schematic diagram of the connection mode of the upper water distributor and the top cover
  • Figure 4 is a schematic diagram of a water distributor
  • the device includes a cold storage system, a cold storage tank (100), a cooling system and an automatic control system, and the cold storage system includes a refrigeration unit ( 201), a circulating pump (202), a cooling valve (203) and a cooling valve (204);
  • the cold storage tank (100) includes a water return port (102), a top cover (103), and an upper water distributor (104) , a tank body (105), a phase change material energy storage layer (106), a lower water distributor (109) and a water outlet (110), wherein the phase change energy storage layer (106) includes an encapsulation shell (107) and A phase change material (108);
  • the cooling system includes a cooling valve (303), a cooling valve (304) and a cooling pump (302) in a user-end air conditioning system (301);
  • the cold storage tank (100) includes a water return port (102), a top cover (103), an upper water distributor (104), a tank body (105), a phase change material energy storage layer (106), and a lower water distributor (110) ) and a water outlet (111);
  • the water return port (102) is located at the center of the top cover (103), and is nested and connected to the upper water distributor (104) through a hole (113);
  • the upper water distributor (104) ) comprises a distribution plate (114), a permeation plate (115), a channel (116) and a groove (117); the distribution plate (114) is welded to the permeation plate (115) in sequence, and the channel (116) penetrates through the permeation plate (115) and uniformly distributed;
  • the phase-change energy storage layer (106) includes an encapsulation shell (107), a phase-change material (108) and a channel (109), and the phase-change material (108) is located in the encapsulation shell (107) Inside, the hole (109) runs through the
  • the function of the upper water distributor 104 is to evenly distribute the water entering the water return port 102. First, the deflector plate 114 divides the water flow, and then the water flow spreads around the permeable plate 115, and at the same time enters the cold storage tank through the hole 116. 100 cavities.
  • phase change energy storage layer 106 The function of the phase change energy storage layer 106 is to separate the chilled water and the return hot water to avoid the mixed disturbance of the two.
  • the channel 109 mixes down with the low temperature chilled water.
  • the function of the aluminum casing 107 is to encapsulate the phase change material 108 .
  • the phase change material 108 is composed of a mixed working medium of alkane and formic acid, and the phase change material 108 has a higher latent heat of phase change, so that more heat can be stored per unit phase change volume.
  • the function of the lower water distributor 110 is to evenly distribute the chilled water at the water outlet 111 to prevent vortex disturbance and affect the upper thermocline.
  • the water cooling system begins to replace the work through the uninterruptible power supply UPS.
  • the chilled water in the cold storage tank 100 passes through the lower water distributor 110 and the water outlet 111, and reaches the user's air-conditioning end 301 for cooling through the action of the cooling pump 302.
  • the generated backflow hot water reaches the reflux of the cooling storage tank 100 through the cooling valve 304.
  • the port 102 after passing through the diversion of the upper water distributor 104, enters the tank 100 evenly, and at the same time adjusts the position of the phase change energy storage layer 106 according to the indication of the flow meter 205; after the cooling is completed, the phase change energy storage layer 106 automatically It rises to the top of the cold storage tank 100, starts the cold storage system at night when the electricity consumption is low, and cools the backflow hot water in the cold storage tank 100; The chilled water passes through the water return port 102 and the upper water distributor 104, passes through the phase change energy storage layer 106 and cools it, and finally the cold storage is completed when the control system shows that the water temperature in the tank reaches about 5°C.
  • the encapsulation shell 107 of the phase-change energy storage layer 106 is made of aluminum material, and is coated with anti-corrosion paint material, and the properties are relatively stable; the phase-change energy storage layer 106 is connected to the control system 101, and the control system 101 is configured With a chip, the temperature, flow rate and operating status of the entire system can be monitored in real time by programming, and the switch of each valve and the position of the phase-change energy storage layer 106 can be controlled.
  • the phase change material 108 is obtained by mixing alkane and formic acid, and has a relatively low phase transition temperature of 4-6° C., while the latent heat of phase transition reaches 180-230 kJ/kg.
  • the advantages of the water cooling storage system based on the phase change energy storage material cooling storage tank in the present invention are that the system structure is simple, and the natural stratification method in the traditional water cooling storage system is optimized, so that when the chilled water and the return hot water are in the same cooling storage tank 100, the Mixed disturbances can be avoided as much as possible, which saves system development costs and improves the overall operating efficiency of the water cooling system.

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  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
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Abstract

一种基于相变储能材料蓄冷罐（100）的水蓄冷系统，包括蓄冷机组、蓄冷罐（100）、放冷系统和自动控制系统，蓄冷机组包括制冷机组（201）、循环泵（202）、充冷阀（203，204）；蓄冷罐（100）包括罐体（105）、上布水器（104）、回水口（102）、相变材料储能层（106）、下布水器（109）和出水口（110），相变材料储能层（106）为烷烃、甲酸按比例混合所得的复合相变材料。放冷系统包括放冷泵（302）、放冷阀（303，304）和用户端空调系统（301）,放冷泵（302）连接不间断电源（305）；自动控制系统与整个水蓄冷系统各环节相连接。

Description

一种基于相变储能材料蓄冷罐的水蓄冷系统 技术领域
本发明属于水蓄冷工程技术领域，更具体地说，涉及一种基于相变储能材料蓄冷罐的水蓄冷系统。
背景技术
当数据中心冷却散热等工程应用中出现突发供电状况，常常采用水蓄冷系统开始做备用冷源。现有技术中，通常水蓄冷系统(CWS)需要考虑设计的水槽能分隔冷水与回流热水，尽量避免它们两者的混合，否则所蓄冷量就会损失掉。为了实现这一目的，有隔膜法、自然分层法、多槽法、迷宫法等可供选用。其中的核心需求是降低冷热水接触面处斜温层的厚度，及减少界面处的热流扰动。其中近年来，相变储能材料因其突出的储能特性而得到了广泛关注以及研究；由于相变储能方法是利用材料的相变潜热来储存能量，所以具有储热效率高的特点。
相变储能材料按照相变形式主要可以分为固-液相变和固-固相变。其中由于固-液相变材料较大的相变潜热以及较广的相变温度范围，应用最为广泛；但由于其在吸热发生相变后，具有流动性，容易发生泄漏，在实际应用中需要对其进行封装。
发明内容
1.发明要解决的技术问题
本发明的目的是对水蓄冷系统的蓄冷罐装置进行优化，由于在一些水蓄冷系统的工程应用中，为了避免回流热水与冷冻水的混合扰动，还需要一个单独的回流热水的储备罐，这样水蓄冷工程的成本投入就大大的提高；同时即使采用了自然分层法的一体化的水蓄冷系统，但其产生的斜温层厚度要达到50～100cm，大大降低了水蓄冷系统的制冷效率。针对现有技术的不足，本发明提供一种基于相变储能材料蓄冷罐的水蓄冷系统，该系统结构简单稳固、效率高、安全性高，同时可对系统的运行进行实时的监测。
2.技术方案
为达到上述目的，本发明提供的技术方案为：
一种基于相变储能材料蓄冷罐的水蓄冷系统，包括蓄冷系统、蓄冷罐(100)、放冷系统和自动控制系统，所述蓄冷系统包括制冷机组(201)、循环泵(202)、充冷阀(203)和充冷阀(204)；所述蓄冷罐(100)包括回水口(102)、顶盖(103)、上布水器(104)、罐体(105)、相变储能层(106)、下布水器(109)和出水口(110)；其中，所述相变储能层(106)包括 封装外壳(107)和相变材料(108)；所述放冷系统包括用户空调端(301)放冷阀(303)、放冷阀(304)以及放冷泵(302)，其中放冷泵(302)与不间断电源(305)连接；
所述蓄冷罐(100)包括回水口(102)，顶盖(103)、上布水器(104)、罐体(105)、相变材料储能层(106)、下布水器(110)和出水口(111)，所述回水口(102)位于顶盖(103)的中心位置，与上布水器(104)通过孔道(113)嵌套连接；所述上布水器(104)包括分流板(114)、渗透板(115)、孔道(116)和凹槽(117)，分流板(114)依次焊接在渗透板(115)，孔道(116)贯穿渗透板(115)；所述相变储能层(106)包括封装外壳(107)、相变材料(108)和孔道(109)，相变材料(108)位于封装外壳(107)的内部，孔道(109)贯穿封装外壳(107)，封装外壳(107)与自动控制系统(101)相连接；所述自动控制系统(101)与出水口(111)的流量计(205)相连接的；所述下布水器(110)与底盖(112)相嵌套连接；所述出水口(111)位于底盖(112)上。
进一步的，所述蓄冷罐(100)的出水口(110)与用户空调端(301)通过放冷阀(303)和放冷泵(302)相连；所述蓄冷罐(100)的回水口(102)与用户空调端(301)通过放冷阀(304)相连。
进一步的，所述蓄冷罐(100)中采用相变储能层(106)作为冷冻水和回流热水的分隔层。
进一步的，所述相变储能层(106)中的封装外壳(107)为高导热性质的铝制材料，内部的相变材料(108)相变温度为4-6℃。
进一步的，所述相变材料(108)由十四烷烃、甲酸按比例混合所得的复合相变材料。
进一步的，所述上布水器(104)与顶盖(103)通过通道(113)嵌套连接；导流板(114)等间隔焊接在渗透板(115)上。
进一步的，所述上布水器(104)上的导流板(114)朝向顶盖(103)，所述渗透板(115)上分布有贯穿的孔道(116)，优化布水效果。
进一步的，所述下布水器(110)上的导流板(114)背向底盖(112)，优化布水效果。
进一步的，所述自动控制系统(101)配置有芯片，通过编写程序对出水口的流量计(205)传来的信号进行调节相变储能层(106)的位置；当放冷结束后，相变储能层自动升至蓄冷罐(100)的顶部。
3.有益效果
采用本发明提供的技术方案，与现有技术相比，具有如下显著效果：
采用相变储能层可以将冷冻水和回流热水隔绝开，进一步，在回流热水通过相变储能层106上的通道109时，相变材料融化并吸收热量将其冷却，从而确保冷冻水与回流热水之间 的微弱扰动，尽量形成较小的斜温层；同时相变储能层可以利用储冷过程中的谷价电进行降温，提高系统的综合效率；而且相变储能层可以循环使用，十分经济。
附图说明
图1为本发明的一种基于相变储能材料蓄冷罐的水蓄冷系统示意图；
图2为蓄冷罐的截面示意图；
图3为上布水器与顶盖的连接方式界面示意图；
图4为布水器示意图；
标号部件说明：100-蓄冷罐，101-自动控制系统，102-回水口，103-顶盖，104-上布水器，105-罐体，106-相变材料储能层，107-封装外壳，108-相变材料，109-通道，110-下布水器，111-出水口，112-底盖，113-孔道，114-分流板，115-渗透板，116-孔道，117-卡槽，201-冷机组，202-循环泵，203-充冷阀，204-充冷阀，205-流量计，301-用户端空调系统，302-放冷泵，303-放冷阀，304-放冷阀，305-不间断电源。
具体实施方式
为进一步了解本发明的内容，结合附图和实施例对本发明作详细描述。
结合图1，本发明的一种基于相变储能材料蓄冷罐的水蓄冷系统，该装置包括蓄冷系统、蓄冷罐(100)、放冷系统和自动控制系统，所述蓄冷系统包括制冷机组(201)、循环泵(202)、充冷阀(203)和充冷阀(204)；所述蓄冷罐(100)包括回水口(102)、顶盖(103)、上布水器(104)、罐体(105)、相变材料储能层(106)、下布水器(109)和出水口(110)，其中，所述相变储能层(106)包括封装外壳(107)和相变材料(108)；所述放冷系统包括用户端空调系统(301)放冷阀(303)和放冷阀(304)以及放冷泵(302)；
所述蓄冷罐(100)包括回水口(102)、顶盖(103)、上布水器(104)、罐体(105)、相变材料储能层(106)、下布水器(110)和出水口(111)；所述回水口(102)位于顶盖(103)的中心位置，与上布水器(104)通过孔道(113)嵌套连接；所述上布水器(104)包括分流板(114)、渗透板(115)、孔道(116)和凹槽(117)；所述分流板(114)依次焊接在渗透板(115)，所述孔道(116)贯穿渗透板(115)且均匀分布；所述相变储能层(106)包括封装外壳(107)、相变材料(108)和孔道(109)，所述相变材料(108)位于封装外壳(107)的内部，孔道(109)贯穿封装外壳(107)供水通行；所述封装外壳(107)与自动控制系统(101)相连接；所述自动控制系统(101)与出水口(111)的流量计(205)相连接的；所述下布水器(110)与底盖(112)相嵌套连接；所述出水口(111)位于底盖(112)上，所述放冷泵(302)与不间断电源(305)连接；
上布水器104的作用是将回水口102处进入的水进行均匀分流分布，首先导流板114将 水流进行分流，然后水流在渗透板115向四周扩散，同时通过孔道116向下进入蓄冷罐100腔体。
相变储能层106的作用是将冷冻水和回流热水隔开，避免两者的混合扰动，同时上部的回流热水与低温的相变储能层106接触并进行换热，降温后通过孔道109向下与低温冷冻水混合。
铝制外壳107的作用是将相变材料108进行封装。
相变材料108由烷烃及甲酸的混合工质构成，相变材料108具有较高的相变潜热，使得单位相变体积储存更多的热量。
下布水器110的作用是将出水口111处的冷冻水进行均匀分流，防止产生漩涡扰动，影响上部的斜温层。
如图1所示，当工程应用中出现紧急供电状况，水蓄冷系统开始通过不间断电源UPS开始顶替工作。蓄冷罐100中的冷冻水经过下布水器110和出水口111，通过放冷泵302的作用到达用户空调端301进行供冷，生成的回流热水通过放冷阀304到达蓄冷罐100的回流口102，在经过上布水器104的分流，均匀进入罐体100，同时根据流量计205的示数即时调整相变储能层106的位置；放冷结束后，相变储能层106自动升至蓄冷罐100的顶部，在晚间用电低谷时启动蓄冷系统，将蓄冷罐100中的回流热水进行冷却；回流热水通过充冷阀203和蓄冷泵202到达制冷机组201，然后冷却后的冷冻水通过回水口102和上布水器104，穿过相变储能层106并对其进行冷却，最后当控制系统显示罐内水温达到5℃左右时蓄冷完成。
如图3所示，相变储能层106的封装外壳107是铝质材料，并且涂有防腐蚀的漆材料，性质较稳定；相变储能层106与控制系统101相连，控制系统101配置有芯片，通过编写程序对整个系统的温度、流量以及运行状况进行即时监控，并控制各阀门的开关以及相变储能层106的位置。
相变材料108是由烷烃以及甲酸混合得到的，具有4-6℃较低的相变温度，同时相变潜热达到180-230kJ/kg。
因此本发明中的基于相变储能材料蓄冷罐的水蓄冷系统优势在于系统结构简单，优化了传统水蓄冷系统中自然分层法，使得冷冻水与回流热水处于同一蓄冷罐100中时也能尽量不发生混合扰动，节约系统开发成本的同时还提高了水蓄冷系统的整体运行效率。
以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (9)

  1. 一种基于相变储能材料蓄冷罐的水蓄冷系统，其特征在于：包括蓄冷系统、蓄冷罐(100)、放冷系统和自动控制系统，所述蓄冷系统包括制冷机组(201)、循环泵(202)、充冷阀(203)和充冷阀(204)；所述蓄冷罐(100)包括回水口(102)、顶盖(103)、上布水器(104)、罐体(105)、相变材料储能层(106)、下布水器(109)和出水口(110)，其中，所述相变储能层(106)包括封装外壳(107)和相变材料(108)；所述放冷系统包括用户空调端(301)、放冷阀(303)、放冷阀(304)以及放冷泵(302)，其中放冷泵(302)与不间断电源(305)连接；相变储能层(106)与系统中的自动控制系统(101)相连。
    所述蓄冷罐(100)包括回水口(102)，顶盖(103)、上布水器(104)、罐体(105)、相变材料储能层(106)、下布水器(110)和出水口(111)，所述回水口(102)位于顶盖(103)的中心位置，与上布水器(104)通过孔道(113)嵌套连接；所述上布水器(104)包括分流板(113)、孔道(114)和凹槽(117)，分流板(114)依次焊接在渗透板(115)，孔道(116)贯穿渗透板(115)；所述相变储能层(106)包括封装外壳(107)、相变材料(108)和孔道(109)，相变材料(108)位于封装外壳(107)的内部，孔道(109)贯穿封装外壳(107)，封装外壳(107)与自动控制系统(101)相连接；所述自动控制系统(101)与出水口(111)的流量计(205)相连接的；所述下布水器(110)与底盖(112)相嵌套连接；所述出水口(111)位于底盖(112)上。
  2. 根据权利要求1所述的一种基于相变储能材料水蓄冷罐的水蓄冷系统，其特征在于：所述蓄冷罐(100)的出水口(110)与用户空调端(301)通过放冷阀(303)和放冷泵(302)相连。
  3. 根据权利要求1所述的一种基于相变储能材料水蓄冷罐的水蓄冷系统，其特征在于，所述蓄冷罐(100)中采用相变材料储能层(106)作为冷冻水和回水的分隔层。
  4. 根据权利要求3所述的一种基于相变储能材料水蓄冷罐的水蓄冷系统，其特征在于：所述相变材料储能层(106)中的封装外壳(107)为高导热性质的铝制材料，内部的相变材料(108)的相变温度为4-6℃。
  5. 根据权利要求4所述的一种基于相变储能材料水蓄冷罐的水蓄冷系统，其特征在于，所述相变材料(108)由十四烷烃、甲酸按比例混合所得的复合相变材料。
  6. 根据权利要求1所述的一种基于相变储能材料水蓄冷罐的水蓄冷系统，其特征在于，所述上布水器(104)与顶盖(103)通过孔道(113)嵌套连接；导流板(114)等间隔焊接在渗透板(115)上。
  7. 根据权利要求6所述的一种基于相变储能材料水蓄冷罐的水蓄冷系统，其特征在于，所述上布水器(104)上的导流板(114)朝向顶盖(103)，所述渗透板(115)上分布有贯穿的孔道(116)，优化布水效果。
  8. 根据权利要求1所述的一种基于相变储能材料水蓄冷罐的水蓄冷系统，其特征在于，所述下布水器(110)上的导流板(114)背向底盖(112)，优化布水效果。
  9. 根据权利要求1所述的一种基于相变储能材料水蓄冷罐的水蓄冷系统，其特征在于，所述自动控制系统(101)配置有芯片，通过编写程序对出水口的流量计(205)传来的信号进行调节相变储能层(106)的位置；当放冷结束后，相变储能层自动升至蓄冷罐(100)的顶部。
PCT/CN2020/098862 2020-06-28 2020-06-29 一种基于相变储能材料蓄冷罐的水蓄冷系统 WO2022000168A1 (zh)

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