WO2020135768A1 - 相变储能装置及供暖系统 - Google Patents

相变储能装置及供暖系统 Download PDF

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Publication number
WO2020135768A1
WO2020135768A1 PCT/CN2019/129373 CN2019129373W WO2020135768A1 WO 2020135768 A1 WO2020135768 A1 WO 2020135768A1 CN 2019129373 W CN2019129373 W CN 2019129373W WO 2020135768 A1 WO2020135768 A1 WO 2020135768A1
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WO
WIPO (PCT)
Prior art keywords
phase change
energy storage
storage device
change energy
box
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PCT/CN2019/129373
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English (en)
French (fr)
Inventor
曾智勇
董华佳
周厚国
廖小亮
Original Assignee
深圳市爱能森科技有限公司
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Application filed by 深圳市爱能森科技有限公司 filed Critical 深圳市爱能森科技有限公司
Publication of WO2020135768A1 publication Critical patent/WO2020135768A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details

Definitions

  • the present application relates to the technical field of heating equipment, in particular to a phase change energy storage device and a heating system.
  • Sensible heat storage uses the temperature difference of materials for energy storage and release. Therefore, sensible heat storage generally requires large temperature difference or large scale.
  • Sensible heat storage uses high temperature storage Heat (T>350°C) mainly.
  • the temperature used in the heating field is generally 50-150 °C, so there are many applications of phase change heat storage.
  • phase change materials are mostly installed on the heating device at the user's end. Although they can play a role in energy storage, there are defects such as heat exchange loss, low energy utilization rate, and insufficient heat exchange.
  • One of the purposes of the embodiments of the present application is to provide a phase change energy storage device and a heating system to solve the problems of heat exchange loss between the phase change material and the heat exchange medium, low energy utilization rate, and insufficient heat exchange.
  • phase change energy storage device including:
  • Box body with an inlet and an outlet on the box body;
  • phase change modules are arranged in the box at intervals, the phase change module includes a housing and a phase change material encapsulated in the housing;
  • At least one baffle plate the baffle plate is disposed in the box body, and the baffle plate is disposed between any two adjacent phase change modules, the baffle plate can change the heat exchange medium Flow direction.
  • the inlet and the outlet are arranged diagonally along the box, the inlet and the outlet are both provided on the side wall of the box, and the inlet is provided on the The upper part of the side wall of the box.
  • the length direction of the phase change module is parallel to the width direction of the box, and the phase change modules are distributed at intervals along the length direction of the box.
  • phase change module there is a gap between the phase change module and the side wall of the box.
  • the box includes two opposite side walls, one end of the baffle plate is disposed on one of the side walls, and a gap is left between the other end and the other side wall.
  • the adjacent baffles are respectively arranged on different side walls.
  • the baffle plate near the inlet is connected to the side wall near the inlet, and the baffle plate near the outlet is connected to the side wall near the outlet.
  • phase change modules are provided between two adjacent baffles.
  • each of the baffles is arranged parallel to the width direction of the box.
  • a plurality of grooves are provided on the surface of the housing, and the grooves are arranged along the flow direction of the heat exchange medium.
  • the phase change module is detachably connected to the bottom plate of the box body through a snap.
  • the bottom plate of the box body is provided with a clamping slot, and each phase change module is correspondingly provided with a buckle that is engaged with the clamping slot; or, each phase change module is provided with A clamping slot, and a bottom plate of the box body is correspondingly provided with a buckle that is engaged with each of the clamping slots.
  • a thermal insulation layer is provided on the inner wall of the box.
  • the top plate of the box is a transparent plate.
  • a heating system including the phase change energy storage device described above.
  • the heating system further includes a high-temperature air source heat pump unit and a user-side heating unit, the high-temperature air source heat pump unit provides a heat source for the phase change energy storage device, and the phase change energy storage device releases heat Heating the user-side heating unit and realizing heat storage and heat release of the phase change energy storage device through valve control.
  • the phase change energy storage device includes a box body, a phase change module and a baffle plate arranged in the box body, and the heat exchange medium flows in from the inlet and flows out of the outlet And the heat exchange medium flows according to the specific path of the baffle, which can make the heat exchange medium and the phase change module fully contact, and solve the heat exchange loss between the phase change material and the heat exchange medium in the prior art, and the energy utilization rate is not high
  • the phase change energy storage device described in the embodiments of the present application reduces the secondary heat exchange process, reduces heat exchange losses, improves energy utilization efficiency, and saves electricity costs.
  • FIG. 1 is a perspective view of a phase change energy storage device according to an embodiment of the present application.
  • phase change energy storage device is a front view of a phase change energy storage device according to an embodiment of the present application
  • Fig. 3 is a schematic diagram of a heating system according to an embodiment of the present application.
  • phase change energy storage device that can be combined with an air source heat pump unit to make the air source heat pump heating system operate reliably and save electricity costs.
  • the phase change energy storage device includes a box body 1, a plurality of phase change modules 2 and at least one baffle plate 3.
  • the phase change module 2 and the baffle plate 3 are arranged on the bottom plate of the box 1 at intervals, the baffle plate 3 is arranged between any two adjacent phase change modules 2, the baffle plate 3 can change the flow direction of the heat exchange medium .
  • the heat exchange medium is water, and may also be other fluids, which is not limited herein.
  • the side wall of the box 1 is provided with an inlet 11 and an outlet 12 of the heat exchange medium.
  • the inlet 11 and the heat exchange medium The outlet 12 is arranged diagonally along the box 1, the inlet 11 and the outlet 12 are both arranged on the side wall of the box 1, and the inlet 11 is arranged on the upper side of the side wall of the box 1.
  • the phase change module 2 is a rectangular parallelepiped, the length direction of the phase change module 2 is parallel to the width direction of the cabinet 1, and the phase change module 2 is along the length direction of the cabinet 1 Interval distribution.
  • the phase change module 2 is connected to the top plate and the bottom plate of the box body 1, and there is a gap between the phase change module 2 and the side wall of the box body 1.
  • the phase change module 2 may also be a cube, a triangular prism, or other irregular shapes, which will not be described in detail here.
  • the phase change module 2 is detachably connected to the bottom plate of the cabinet 1 through a snap. Specifically, a slot is provided on the bottom plate of the box 1 and a buckle is provided on the phase change module 2; or a slot is provided on the phase change module 2 and a buckle is provided on the bottom plate of the box 1.
  • the snap-fit card slot realizes the connection between the phase change module 2 and the cabinet 1. This structure is not only convenient for disassembly, but also can easily set the number of phase change modules 2 according to actual heat storage requirements.
  • the phase change module 2 includes a housing and a phase change material encapsulated in the housing.
  • the phase change material changes from solid to liquid for heat storage; when changing
  • the phase change temperature point of the phase change material is 70°C, and may be other phase change temperature points, which is not limited herein.
  • the shell is a metal material with a certain degree of stretchability and thermal conductivity, and a plurality of grooves are provided on the surface of the shell, and the grooves are arranged along the flow direction of the heat exchange medium.
  • the groove structure can increase the heat exchange area of the heat exchange medium and the phase change material, and improve the heat exchange efficiency.
  • a baffle plate 3 is provided for every two phase change modules 2, and the baffle plate 3 is connected to the top plate and the bottom plate of the cabinet 1.
  • the box 1 includes two opposite side walls, one end of the baffle plate 3 is disposed on one of the side walls, and a gap is left between the other end and the other side wall, and the adjacent baffle plates 3 are respectively disposed on different sides
  • the baffle plate 3 near the inlet 11 should be connected to the side wall near the inlet 11 and the baffle plate 3 near the outlet 12 should be connected to the side wall near the outlet 12 so that the baffle 3
  • the flow direction of the heat exchange medium on the side is opposite, so as to achieve the purpose of sufficient contact between the heat exchange medium and the phase change module 2.
  • the baffle plate 3 is arranged parallel to the width direction of the case 1.
  • the heat exchange medium flows in from the inlet 11, flows through the gap between the phase change module 2, the baffle plate 3 and the side wall of the box 1, and flows out from the outlet 12.
  • the heat exchange medium flows according to the specific path formed by the baffle 3, which can make the heat exchange medium and the phase change module 2 fully contact, and solve the heat exchange loss and energy utilization rate between the phase change material and the heat exchange medium in the prior art
  • the problem is not high and insufficient heat exchange.
  • the phase change energy storage device reduces the secondary heat exchange process, reduces heat exchange losses, improves energy utilization efficiency, and saves electricity costs.
  • the top plate of the box 1 is treated with a transparency effect to facilitate the observation of the flow of the heat exchange medium.
  • a heat insulation layer 4 is provided on the inner wall of the box 1.
  • This embodiment also provides a heating system including the above-mentioned phase change energy storage device, a high-temperature air source heat pump unit 6 and a user-side heating unit 7, the high-temperature air source heat pump unit 6 provides a heat source for the phase change energy storage device, and the phase change energy storage The heat release of the energy device heats the heating unit 7 on the user side, and realizes the heat storage and heat release of the phase change energy storage device through valve control.
  • a first pipeline 91 is provided between the inlet of the phase change energy storage device and the outlet of the heating unit 7 on the user side
  • a second pipeline 92 is provided between the outlet of the high-temperature air source heat pump unit 6 and the first pipeline 91.
  • a third pipeline 93 is provided between the outlet of the phase change energy storage device and the inlet of the heating unit 7 on the user side
  • a fourth pipeline 94 is provided between the inlet of the high-temperature air source heat pump unit 6 and the third pipeline 93.
  • the first pipeline 91 is provided with a first electric valve 83, which is located between the position A where the first pipeline 91 communicates with the second pipeline 92 and the outlet of the heating unit 7 on the user side, and the third pipeline A second electric valve 84 is provided on 93, and the second electric valve 84 is located between the position B where the third pipeline 93 and the fourth pipeline 94 communicate with each other, and the inlet of the heating unit 7 on the user side.
  • a fourth electric valve 86 is provided, and a third electric valve 85 is provided on the fourth pipeline 94.
  • a low-temperature air source heat pump unit 5 should also be provided in the heating system.
  • a fifth pipeline 95 is provided between the inlet of the low-temperature air source heat pump unit 5 and the outlet of the heating unit 7 on the user side.
  • a sixth pipe 96 is provided between the outlet of the air source heat pump unit 5 and the inlet of the heating unit 7 on the user side, and an end connecting the first pipe 91 to the outlet of the heating unit 7 on the user side and the third pipe 93 and the heating on the user side
  • One end of the inlet connection of the unit 7 is provided on the sixth pipeline 96, and a fifth electric valve 87 is provided on the sixth pipeline 96, and the fifth electric valve 87 is located on the sixth pipeline 96 and the first pipeline 91 and Between the communicating positions of the three pipes 93.
  • the first electric valve 83 and the second electric valve 84 are closed, and the third electric valve 85, the fourth electric valve 86 and the fifth electric valve 87 are opened, so that the high temperature air source heat pump unit 6 can be stored as a phase change
  • the energy device provides a heat source
  • the phase change energy storage device can store heat
  • the low-temperature air source heat pump unit 5 heats the user-side heating unit 7.
  • the first electric valve 83 and the second electric valve 84 are opened, and the third electric valve 85, the fourth electric valve 86 and the fifth electric valve 87 are closed, then the phase change energy storage device releases heat
  • the low-temperature air source heat pump unit 5 and the phase-change energy storage device jointly heat the heating unit 7 on the user side. This combined heating system can improve the reliability of the air source heat pump heating system, and can reduce the electricity consumption during peak electricity consumption, thereby saving electricity costs.
  • a first circulation pump 81 is provided on the fifth pipeline 95, and a second circulation pump 82 is provided on the outlet end of the phase change energy storage device.
  • the outlet temperature of the high-temperature air source heat pump unit 6 can reach 80°C, and the outlet temperature of the low-temperature air source heat pump unit 5 can be 40-50°C.

Abstract

一种相变储能装置及供暖系统，该相变储能装置包括箱体(1)、间隔设置在箱体(1)内的多个相变模块(2)和设置于箱体(1)内的至少一个折流板(3)。箱体(1)上设有进口(11)和出口(12)；各相变模块(2)包括壳体和封装在壳体内的相变材料；各折流板(3)设置于任意相邻的两个相变模块(2)之间。

Description

相变储能装置及供暖系统
本申请要求于2018年12月27日在中国专利局提交的、申请号为201822215240.X、发明名称为“一种相变储能装置及供暖系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及取暖设备技术领域，具体涉及一种相变储能装置及供暖系统。
 背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然构成现有技术。
随着电力供暖的广泛应用，空气源热泵的使用日益增多，而空气源热泵供暖存在极端天气设备性能不稳定甚至不工作等情况，为了应对极端天气，设备需要过配置，这就导致工程投资过大。此外，峰谷电价差距过大，从节约用电成本和应对极端天气情况等方面考虑，进行储能储热非常有必要。
储热分为显热储热和相变储热，显热储热是利用材料的温差进行能量的储存和释放，因而显热储热一般要求大温差或者大规模，显热储热以高温储热（T＞350℃）为主。而应用于供暖领域的温度一般在50-150℃，所以相变储热应用较多。在现有技术中，相变材料多是设置在用户末端的采暖装置上，虽然能够起到一定储能的作用，但是存在换热损失、能量利用率不高以及换热不充分等缺陷。
 技术问题
本申请实施例的目的之一在于：提供一种相变储能装置及供暖系统，以解决相变材料与换热介质间存在换热损失，能量利用率不高，换热不充分的问题。
 技术解决方案
为解决上述技术问题，本申请实施例采用的技术方案是：
第一方面，提供了一种相变储能装置，包括：
箱体，所述箱体上设有进口和出口；
多个相变模块，所述相变模块间隔设置在所述箱体内，所述相变模块包括壳体和封装在所述壳体内的相变材料；
至少一个折流板，所述折流板设置于所述箱体内，且所述折流板设置于任意相邻的两个所述相变模块之间，所述折流板能改变换热介质的流动方向。
在一个实施例中，所述进口和所述出口沿所述箱体呈对角设置，所述进口和所述出口均设置在所述箱体的侧壁上，且所述进口设置在所述箱体侧壁的上部。
在一个实施例中，所述相变模块的长度方向与所述箱体的宽度方向平行，所述相变模块沿所述箱体的长度方向上间隔分布。
在一个实施例中，所述相变模块与所述箱体的侧壁间均具有间隙。
在一个实施例中，所述箱体包括相对设置的两侧壁，所述折流板一端设置在其中一个所述侧壁上，另一端与另一个所述侧壁之间留有间隙，相邻的所述折流板分别设置在不同的所述侧壁上。
在一个实施例中，靠近所述进口设置的所述折流板与靠近该进口的所述侧壁连接，靠近所述出口设置的所述折流板与靠近该出口的所述侧壁连接。
在一个实施例中，相邻两个所述折流板之间设置有两个所述相变模块。
在一个实施例中，各所述折流板与所述箱体的宽度方向平行设置。
在一个实施例中，所述壳体表面设有多个凹槽，所述凹槽沿所述换热介质的流动方向设置。
在一个实施例中，所述相变模块通过卡扣与所述箱体的底板可拆卸连接。
在一个实施例中，所述箱体的底板上设有卡槽，各所述相变模块上对应设置有与所述卡槽卡接的卡扣；或者，各所述相变模块上设有卡槽，所述箱体的底板上对应设有与各所述卡槽卡接的卡扣。
在一个实施例中，所述箱体内壁设有保温层。
在一个实施例中，所述箱体的顶板为透明板体。
第二方面，提供了一种供暖系统，包括上述的相变储能装置。
在一个实施例中，所述供暖系统还包括高温空气源热泵机组和用户端供暖单元，所述高温空气源热泵机组为所述相变储能装置提供热源，所述相变储能装置放热为所述用户端供暖单元供暖，通过阀控实现所述相变储能装置的储热和放热。
 有益效果
本申请实施例提供的相变储能装置及供暖系统的有益效果在于：相变储能装置包括箱体以及设置在箱体内的相变模块和折流板，换热介质从进口流入，出口流出，且换热介质按照折流板特定的路径流动，能使换热介质与相变模块充分接触，解决了现有技术中相变材料与换热介质间存在换热损失、能量利用率不高以及换热不充分等问题，本申请实施例所述的相变储能装置减少了二次换热过程，减少了换热损失，提高了能量利用效率，节约了用电成本。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例或示范性技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1是本申请实施例所述的相变储能装置的立体图；
图2是本申请实施例所述的相变储能装置的主视图；
图3是本申请实施例所述的供暖系统的示意图。
图中：
1、箱体；11、进口；12、出口；2、相变模块；3、折流板；4、保温层；5、低温空气源热泵机组；6、高温空气源热泵机组；7、用户端供暖单元；81、第一循环泵；82、第二循环泵；83、第一电动阀；84、第二电动阀；85、第三电动阀；86、第四电动阀；87、第五电动阀；91、第一管路；92、第二管路；93、第三管路；94、第四管路；95、第五管路；96、第六管路。
 本发明的实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本申请。
需说明的是，当部件被称为“固定于”或“设置于”另一个部件，它可以直接在另一个部件上或者间接在该另一个部件上。当一个部件被称为是“连接于”另一个部件，它可以是直接或者间接连接至该另一个部件上。术语“上”、“下”、“左”、“右”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。术语“第一”、“第二”、“第三”、“第四”、“第五”、“第六”仅用于便于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明技术特征的数量。“多个”的含义是两个或两个以上，除非另有明确具体的限定。
为了说明本申请所述的技术方案，以下结合具体附图及实施例进行详细说明。
如图1-3所示，本申请一些实施例提供了一种相变储能装置，能够与空气源热泵机组结合使空气源热泵供暖系统运行可靠且能够节约用电成本。该相变储能装置包括箱体1、多个相变模块2以及至少一个折流板3。相变模块2和折流板3间隔设置在箱体1的底板上，折流板3设置于任意相邻的两个相变模块2之间，折流板3能改变换热介质的流动方向。本实施例中，换热介质为水，也可以为其他流体，在此不作限定。
具体地，箱体1的侧壁上设有换热介质的进口11和出口12，为了使换热介质能够流经所有的相变模块2，在本实施例中，换热介质的进口11和出口12沿箱体1呈对角设置，进口11和出口12均设置在箱体1的侧壁上，且进口11设置在箱体1侧壁的上部。
如图1和图2所示，在本实施例中，相变模块2为长方体，相变模块2的长度方向与箱体1的宽度方向平行，相变模块2沿箱体1的长度方向上间隔分布。相变模块2与箱体1的顶板和底板连接，相变模块2与箱体1的侧壁间均具有间隙。
在其他实施例中，相变模块2也可以是正方体、三棱柱或者其他不规则的形状，在此不再详细叙述。
相变模块2通过卡扣与箱体1的底板可拆卸连接。具体地，在箱体1底板上设置卡槽，相变模块2上设置卡扣；或者，在相变模块2上设置卡槽，箱体1底板上设置卡扣。卡扣卡接卡槽来实现相变模块2与箱体1的连接，这种结构不仅方便拆卸，还可以根据实际的储热需求方便地设置相变模块2的个数。
相变模块2包括壳体和封装在壳体内的相变材料，当换热介质的温度高于相变材料的相变温度点时，相变材料由固体变为液体，进行储热；当换热介质的温度低于相变材料的相变温度点时，相变材料由液体变为固体，进行放热。在本实施例中，相变材料的相变温度点为70℃，也可以是其它的相变温度点，在此不作限定。
在本实施例中，壳体为具有一定的伸展性和导热性的金属材料，该壳体表面设有多个凹槽，凹槽沿换热介质的流动方向设置。该凹槽结构可以增加换热介质与相变材料的换热面积，提高换热效率。
在本实施例中，每隔两个相变模块2设置一个折流板3，折流板3与箱体1的顶板和底板连接。箱体1包括相对设置的两侧壁，折流板3一端设置在其中一个侧壁上，另一端与另一个侧壁之间留有间隙，相邻的折流板3分别设置在不同的侧壁上，其中，靠近进口11设置的折流板3应与靠近进口11的侧壁连接，靠近出口12设置的折流板3应与靠近出口12的侧壁连接，以使折流板3两侧的换热介质流动方向相反，达到换热介质与相变模块2充分接触的目的。在本实施例中，折流板3与箱体1的宽度方向平行设置。
换热介质从进口11流入，流经相变模块2、折流板3以及箱体1侧壁之间的间隙，从出口12流出。换热介质按照折流板3形成的特定的路径流动，能使换热介质与相变模块2充分接触，解决了现有技术中相变材料与换热介质间存在换热损失、能量利用率不高以及换热不充分等问题，该相变储能装置减少了二次换热过程，减少了换热损失，提高了能量利用效率，节约了用电成本。
在本实施例中，箱体1的顶板做透明化效果处理，以方便观察换热介质的流动情况。
为了保证换热效果，箱体1与外界之间应减少热交换，所以在箱体1内壁上设有保温层4。
本实施例还提供了一种供暖系统包括上述的相变储能装置、高温空气源热泵机组6和用户端供暖单元7，高温空气源热泵机组6为相变储能装置提供热源，相变储能装置放热为用户端供暖单元7供暖，通过阀控实现相变储能装置的储热和放热。
具体地，相变储能装置的进口与用户端供暖单元7的出口间设有第一管路91，高温空气源热泵机组6的出口与第一管路91间设有第二管路92，相变储能装置出口与用户端供暖单元7的进口间设有第三管路93，高温空气源热泵机组6的进口与第三管路93之间设有第四管路94。
第一管路91上设有第一电动阀83，第一电动阀83位于第一管路91与第二管路92连通的位置A以及用户端供暖单元7的出口之间，第三管路93上设有第二电动阀84，所述第二电动阀84位于第三管路93与第四管路94连通的位置B以及用户端供暖单元7的进口之间，第二管路92上设有第四电动阀86，第四管路94上均设有第三电动阀85。
在实际使用中，如图3所示，供暖系统中还应设有低温空气源热泵机组5，低温空气源热泵机组5进口与用户端供暖单元7的出口间设有第五管路95，低温空气源热泵机组5出口与用户端供暖单元7的进口间设有第六管路96，并且将第一管路91与用户端供暖单元7出口连接的一端以及第三管路93与用户端供暖单元7的进口连接的一端均设置在第六管路96上，第六管路96上设有第五电动阀87，第五电动阀87位于第六管路96与第一管路91和第三管路93的连通的位置之间。
在用电低谷时，第一电动阀83和第二电动阀84关闭，第三电动阀85、第四电动阀86和第五电动阀87打开，可使高温空气源热泵机组6为相变储能装置提供热源，相变储能装置可以储热，低温空气源热泵机组5为用户端供暖单元7供暖。
在用电高峰或者极端天气情况下，第一电动阀83和第二电动阀84打开，第三电动阀85、第四电动阀86和第五电动阀87关闭，则相变储能装置放热，低温空气源热泵机组5和相变储能装置联合为用户端供暖单元7供暖。这种联合供暖的系统可提高空气源热泵供暖系统的可靠性，并且能够减少用电高峰时的用电量，从而节约用电成本。
为了使换热介质在各个管路中循环流动，在第五管路95上设有第一循环泵81，在相变储能装置的出口端设有第二循环泵82。
在本实施例中，高温空气源热泵机组6出水温度可达80℃，低温空气源热泵机组5出水温度为40-50℃。
以上仅为本申请的可选实施例而已，并不用于限制本申请。对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (15)

  1. 相变储能装置，其特征在于，包括：
    箱体，所述箱体上设有进口和出口；
    多个相变模块，所述相变模块间隔设置在所述箱体内，所述相变模块包括壳体和封装在所述壳体内的相变材料；
    至少一个折流板，所述折流板设置于所述箱体内，且所述折流板设置于任意相邻的两个所述相变模块之间，所述折流板能改变换热介质的流动方向。
  2. 根据权利要求1所述的相变储能装置，其特征在于，所述进口和所述出口沿所述箱体呈对角设置，所述进口和所述出口均设置在所述箱体的侧壁上，且所述进口设置在所述箱体侧壁的上部。
  3. 根据权利要求1所述的相变储能装置，其特征在于，所述相变模块的长度方向与所述箱体的宽度方向平行，所述相变模块沿所述箱体的长度方向上间隔分布。
  4. 根据权利要求3所述的相变储能装置，其特征在于，所述相变模块与所述箱体的侧壁间均具有间隙。
  5. 根据权利要求1所述的相变储能装置，其特征在于，所述箱体包括相对设置的两侧壁，所述折流板一端设置在其中一个所述侧壁上，另一端与另一个所述侧壁之间留有间隙，相邻的所述折流板分别设置在不同的所述侧壁上。
  6. 根据权利要求5所述的相变储能装置，其特征在于，靠近所述进口设置的所述折流板与靠近该进口的所述侧壁连接，靠近所述出口设置的所述折流板与靠近该出口的所述侧壁连接。
  7. 根据权利要求1所述的相变储能装置，其特征在于，相邻两个所述折流板之间设置有两个所述相变模块。
  8. 根据权利要求1所述的相变储能装置，其特征在于，各所述折流板与所述箱体的宽度方向平行设置。
  9. 根据权利要求1所述的相变储能装置，其特征在于，所述壳体表面设有多个凹槽，所述凹槽沿所述换热介质的流动方向设置。
  10. 根据权利要求1所述的相变储能装置，其特征在于，所述相变模块通过卡扣与所述箱体的底板可拆卸连接。
  11. 根据权利要求10所述的相变储能装置，其特征在于，所述箱体的底板上设有卡槽，各所述相变模块上对应设置有与所述卡槽卡接的卡扣；或者，各所述相变模块上设有卡槽，所述箱体的底板上对应设有与各所述卡槽卡接的卡扣。
  12. 根据权利要求1所述的相变储能装置，其特征在于，所述箱体内壁设有保温层。
  13. 根据权利要求1-12任一项所述的相变储能装置，其特征在于，所述箱体的顶板为透明板体。
  14. 供暖系统，其特征在于，包括权利要求1-13任一项所述的相变储能装置。
  15. 根据权利要求14所述的供暖系统，其特征在于，所述供暖系统还包括高温空气源热泵机组和用户端供暖单元，所述高温空气源热泵机组为所述相变储能装置提供热源，所述相变储能装置放热为所述用户端供暖单元供暖，通过阀控实现所述相变储能装置的储热和放热。
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