Active and passive energy storage combined self-insulation phase-change block wall

Abstract

The utility model discloses an active and passive energy storage combined self-insulation phase-change building block wall which comprises an insulation phase-change building block layer built by a plurality of self-insulation phase-change building blocks, an outer mortar layer arranged on the outer surface of the insulation phase-change building block layer and an inner mortar layer arranged on the inner surface of the insulation phase-change building block layer. The capillary tube mesh grid is embedded in the inner mortar layer, and a connecting mortar layer is arranged between every two adjacent self-heat-preservation phase change building blocks; the first row of through holes comprises two first through holes, the second row of through holes comprises a second large through hole and two second small through holes symmetrically formed in the two sides of the second large through hole, and the third row of through holes comprises two third through holes; ePS insulation boards are inserted into the first through hole, the second large through hole and the second small through hole, and a phase change material block is inserted into the third through hole. According to the utility model, the self-insulation phase-change building blocks are combined with the capillary mesh grid, so that the energy storage capacity of the wall body is actively and passively adjusted comprehensively, and indoor requirements can be met under different weather conditions, different seasons and different building loads.

Description

Technical Field

[0001] The utility model belongs to the technical field of building exterior wall thermal insulation and energy conservation, and particularly relates to a self-insulating phase change block wall combining active and passive energy storage. Background Art

[0002] At present, concrete composite self-insulating blocks have attracted much attention in recent years because they can achieve the integration of thermal insulation and structure, and have the advantages of good durability, fire resistance, convenient construction, and the same service life as the building. The filling of thermal insulation materials in its internal holes can make the block have high thermal insulation performance, but it reduces the heat storage performance of the wall. One way to solve this problem is to add phase change materials to the self-insulating block to realize the combination of self-insulating technology and phase change energy storage technology, thereby improving the thermal insulation and heat storage performance of the wall, reducing indoor temperature fluctuations, and reducing air conditioning energy consumption.

[0003] However, this passive energy storage technology uses the cold and heat sources in nature to store energy in the phase change material. Such energy storage methods are suitable for areas with large day-night temperature differences. The application effect of passive phase change energy storage technology is limited by climate conditions. In some areas with small day-night temperature differences, it is difficult for the phase change material to fully play its role. In addition, in terms of the thermal stability of the room and the control of indoor temperature, installing the phase change material into the self-insulating block can only achieve a good indoor thermal environment control effect in the transitional season and when the building load is small. When the building load is large, although it can reduce the peak value of indoor temperature compared with ordinary block walls, due to its limited heat storage capacity, it cannot maintain the indoor temperature within the range required for human comfort, which makes its application under different seasons and different building loads have limitations.

[0004] Patent CN219118459U discloses an embedded capillary radiation heating and cooling composite phase change energy storage wall, which discloses a phase change mortar layer and a capillary network. However, the capillary network is laid in the phase change mortar layer and a composite shaped phase change mortar layer is used, which is likely to cause leakage of the phase change material. In addition, this technology cannot meet the application requirements of room temperature adjustment throughout the year.

[0005] Therefore, there is currently a lack of a self-insulating phase change block wall with a simple structure, reasonable design, high safety and durability, which can comprehensively adjust the energy storage of the wall actively and passively, meet the indoor temperature control requirements under different climate conditions, different seasons and different building loads, and has a significant energy-saving effect. Summary of the Utility Model

[0006] The technical problem to be solved by the present utility model is to provide a self-insulating phase change block wall combining active and passive energy storage in view of the deficiencies in the above-mentioned prior art. It has a simple structure, reasonable design, convenient construction, high safety and durability. The self-insulating phase change block is combined with a capillary network grid, and the capillary network grid is embedded in the plastering mortar layer on the inner surface of the block wall, realizing the combination of active and passive energy storage, and capable of comprehensively adjusting the energy storage of the wall actively and passively, so as to meet the indoor temperature control requirements under different climate conditions, different seasons and different building loads, and having a remarkable energy-saving effect.

[0007] To solve the above technical problems, the technical solution adopted by the present utility model is: a self-insulating phase change block wall combining active and passive energy storage, characterized in that: it includes a heat-insulating phase change block layer built by a plurality of self-insulating phase change blocks, an outer mortar layer provided on the outer surface of the heat-insulating phase change block layer, an inner mortar layer provided on the inner surface of the heat-insulating phase change block layer, and a capillary network grid embedded in the inner mortar layer, and a connecting mortar layer is provided between two adjacent self-insulating phase change blocks;

[0008] A first row of through holes, a second row of through holes and a third row of through holes are provided in the self-insulating phase change block, and the first row of through holes, the second row of through holes and the third row of through holes are arranged along the width direction of the self-insulating phase change block;

[0009] The first row of through holes includes two first through holes, the second row of through holes includes one second large through hole and two second small through holes symmetrically arranged on both sides of the second large through hole, and the third row of through holes includes two third through holes;

[0010] An EPS thermal insulation board is inserted into the first through hole, the second large through hole and the second small through hole, and a phase change material block is inserted into the third through hole.

[0011] The above-mentioned self-insulating phase change block wall combining active and passive energy storage is characterized in that: the capillary network grid includes a water inlet main pipe, a water return main pipe and a plurality of capillary branch pipes connected between the water inlet main pipe and the water return main pipe, and the capillary branch pipes are U-shaped;

[0012] A plurality of positioning pipe clamps are provided on the capillary branch pipes, and the positioning pipe clamps include a plurality of integrally formed pipe clamp grooves for the capillary branch pipes to pass through.

[0013] The above-mentioned self-insulating phase change block wall combining active and passive energy storage is characterized in that: a first phase change material block is inserted into one of the third through holes, and a second phase change material block is inserted into the other third through hole. The first phase change material block includes a first aluminum box inserted into one of the third through holes and a first phase change material filled in the first aluminum box;

[0014] The second phase change material block includes a second aluminum box inserted into another one of the third through holes and a second phase change material filled in the second aluminum box; the phase change temperature of the first phase change material is less than that of the second phase change material.

[0015] For the above-mentioned self-insulating phase change block wall combining active and passive energy storage, it is characterized in that: the length directions of the first through hole, the second large through hole, the second small through hole and the third through hole are arranged along the length direction of the self-insulating phase change block, and the width directions of the first through hole, the second large through hole, the second small through hole and the third through hole are arranged along the width direction of the self-insulating phase change block;

[0016] The first through hole and the third through hole are symmetrically arranged. The lengths of the first through hole and the third through hole are both less than the length of the second large through hole. The widths of the first through hole, the second large through hole, the second small through hole and the third through hole are the same. The second small through hole penetrates through to the wide side of the self-insulating phase change block. The projections of the second large through hole and the first through hole on the long side of the self-insulating phase change block have an overlapping area, and the projections of the second large through hole and the third through hole on the long side of the self-insulating phase change block have an overlapping area.

[0017] The utility model has the following advantages compared with the prior art:

[0018] 1. Through the phase change material block in the self-insulating phase change block and the capillary network grid in the inner mortar layer, the utility model realizes the combination of active energy storage and passive energy storage. Compared with the single active energy storage or passive energy storage method, it is more economical and energy-saving, and adapts to the dynamic requirements of buildings, so as to meet the indoor temperature control requirements under different climate conditions, different seasons and different building loads.

[0019] 2. In the through holes of the self-insulating phase change block of the utility model, EPS insulation boards and phase change material blocks are inserted, so that the self-insulating phase change block becomes an integral whole, which is convenient for the masonry of multiple self-insulating phase change blocks, thus improving the construction efficiency. And the insertion of the phase change material block has a simple installation method, which is easy to realize the combination of the phase change material and the wall. By using the phase change material block, the leakage problem of the phase change material is avoided. The phase change material can be used for both passive energy storage and active energy storage, with simple construction, low cost, and avoiding the leakage of the phase change material easily caused by adding the phase change material into the mortar layer.

[0020] 3. The capillary network grid of the utility model is embedded in the plastering mortar layer on the inner surface of the block wall, and the phase change material block is arranged in the through hole of the self-insulating block and is adjacent to the pipe embedding layer. On the one hand, the phase change material is convenient to combine with the wall, with simple construction and installation and not easy to leak; on the other hand, a better active cooling effect can be obtained. However, the method of directly embedding the pipe in the phase change material layer has a large encapsulation difficulty, is easy to leak, and it is very difficult to combine the pipe embedding phase change material layer with the wall during the construction process.

[0021] 4. The phase change material block of the present utility model is arranged in the inner through hole of the self-insulating block, adjacent to the pipe-embedded layer, and the pipe-embedded layer is located in the indoor side direction of the phase change material block. This layout scheme can not only ensure that when the pipe-embedded heat exchange does not operate, that is, only relying on the passive energy storage of the phase change material, better temperature control effect can be obtained indoors, but also ensure that under the active energy storage of the pipe-embedded heat exchange operation, the phase change material can still give full play to the phase change effect, and better control effect of the indoor temperature can be obtained.

[0022] In summary, the structure of the present utility model is simple and reasonable. It combines the self-insulating phase change block and the capillary network grid, and the capillary network grid is embedded in the plastering mortar layer on the inner surface of the block wall, realizing the combination of active and passive energy storage, and can comprehensively adjust the energy storage of the wall actively and passively, so as to meet the indoor temperature control requirements under different climate conditions, different seasons and different building loads, and has significant energy-saving effects.

[0023] Next, through the drawings and embodiments, the technical solutions of the present utility model will be further described in detail. Description of the Drawings

[0024] Figure 1 It is a structural schematic diagram of the present utility model.

[0025] Figure 2 It is a structural schematic diagram of the self-insulating phase change block of the present utility model.

[0026] Figure 3 It is a structural schematic diagram of the capillary network grid of the present utility model.

[0027] Figure 4 It is a structural schematic diagram of the positioning pipe clamp of the present utility model.

[0028] Description of the Reference Numerals:

[0029] 1 - Outer mortar layer; 2 - Inner mortar layer; 3 - Connecting mortar layer;

[0030] 4 - Self-insulating phase change block; 4-1 - First through hole;

[0031] 4-2 - Second large through hole; 4-3 - Second small through hole; 4-4 - Third through hole;

[0032] 5 - Capillary network grid; 5-1 - Water inlet main pipe; 5-2 - Water return main pipe;

[0033] 5-3 - Positioning pipe clamp; 5-3-1 - Pipe clamp groove; 5-4 - Capillary branch pipe. Detailed Embodiment

[0034] As Figures 1 to 4As shown in the figure, the utility model includes a heat-insulating phase-change block layer built by a plurality of self-insulating phase-change blocks 4, an outer mortar layer 1 arranged on the outer surface of the heat-insulating phase-change block layer, an inner mortar layer 2 arranged on the inner surface of the heat-insulating phase-change block layer, and a capillary network grid 5 embedded in the inner mortar layer 2. A connecting mortar layer 3 is arranged between two adjacent self-insulating phase-change blocks 4;

[0035] In the self-insulating phase-change block 4, a first row of through holes, a second row of through holes and a third row of through holes are arranged, and the first row of through holes, the second row of through holes and the third row of through holes are arranged along the width direction of the self-insulating phase-change block 4;

[0036] The first row of through holes includes two first through holes 4-1, the second row of through holes includes a second large through hole 4-2 and two second small through holes 4-3 symmetrically arranged on both sides of the second large through hole 4-2, and the third row of through holes includes two third through holes 4-4;

[0037] EPS heat-insulating boards are inserted into the first through hole 4-1, the second large through hole 4-2 and the second small through hole 4-3, and a phase-change material block is inserted into the third through hole 4-4.

[0038] In this embodiment, the capillary network grid 5 includes a water inlet main pipe 5-1, a water return main pipe 5-2 and a plurality of capillary branch pipes 5-4 connected between the water inlet main pipe 5-1 and the water return main pipe 5-2. The capillary branch pipes 5-4 are U-shaped;

[0039] A plurality of positioning pipe clamps 5-3 are arranged on the capillary branch pipe 5-4. The positioning pipe clamps 5-3 include a plurality of integrally formed pipe clamp grooves 5-3-1 for the capillary branch pipe 5-4 to pass through.

[0040] In this embodiment, a first phase-change material block is inserted into one of the third through holes 4-4, and a second phase-change material block is inserted into the other third through hole 4-4. The first phase-change material block includes a first aluminum box inserted into one of the third through holes 4-4 and a first phase-change material filled in the first aluminum box;

[0041] The second phase-change material block includes a second aluminum box inserted into the other third through hole 4-4 and a second phase-change material filled in the second aluminum box; the phase-change temperature of the first phase-change material is less than the phase-change temperature of the second phase-change material.

[0042] In this embodiment, the length directions of the first through hole 4-1, the second large through hole 4-2, the second small through hole 4-3 and the third through hole 4-4 are arranged along the length direction of the self-insulating phase-change block 4, and the width directions of the first through hole 4-1, the second large through hole 4-2, the second small through hole 4-3 and the third through hole 4-4 are arranged along the width direction of the self-insulating phase-change block 4;

[0043] The first through-hole 4-1 and the third through-hole 4-4 are symmetrically arranged. The lengths of the first through-hole 4-1 and the third through-hole 4-4 are both smaller than the length of the second largest through-hole 4-2. The widths of the first through-hole 4-1, the second largest through-hole 4-2, the second smallest through-hole 4-3, and the third through-hole 4-4 are the same. The second smallest through-hole 4-3 penetrates to the wide side of the self-insulating phase change block 4. The projections of the second largest through-hole 4-2 and the first through-hole 4-1 on the long side of the self-insulating phase change block 4 have an overlapping area. The projections of the second largest through-hole 4-2 and the third through-hole 4-4 on the long side of the self-insulating phase change block 4 have an overlapping area.

[0044] In this embodiment, the U-shaped capillary branch pipes 5-4 are laid on the same vertical plane. During actual connection, only the end connected to the return water main pipe 5-2 protrudes, which is convenient for connecting the return water main pipe 5-2.

[0045] In this embodiment, the phase change temperature of the first phase change material is 18°C, and the phase change range is 16°C to 20°C. The phase change temperature of the second phase change material is 26°C, and the phase change range is 24°C to 28°C.

[0046] In this embodiment, the phase change temperature range of the first phase change material is 18°C, aiming to reduce the energy consumption of heating and air conditioning through the phase change heat storage of the phase change material in winter; the phase change temperature range of the second phase change material is 26°C, aiming to reduce the energy consumption of cooling air conditioning through phase change in summer. In the transition season, the phase change materials with two phase change temperatures both play a phase change role. 18°C and 26°C are the optimal phase change temperatures for the heating season and the cooling season respectively. When the phase change material is filled in the inner through-hole, when passive energy storage is adopted, the indoor temperature control effect is better; when the capillary network grid 5 is used for active cooling / heating and energy storage, the energy consumption and operation cost of active cooling / heating can be reduced. The phase change material block is adjacent to the pipe-embedded layer, and the pipe-embedded layer is located on the indoor side of the phase change material block, which can enable the phase change material block to play a full role and the indoor temperature control effect is better.

[0047] In this embodiment, during actual use, when the building load is large, relying solely on passive energy storage cannot control the indoor temperature within the range of human thermal comfort requirements, and capillary cooling / heating needs to be added to introduce active energy storage. Using natural cold / heat sources or artificial cold / heat sources with low night-time electricity prices to supply cold / hot water to the capillary network grid 5, and storing the cold / heat in the phase change material, thereby increasing the energy storage capacity of the wall. In summer, the water supply temperature of the capillary network grid 5 is 18°C to 24°C; in winter, the water supply temperature of the capillary network grid 5 is 20°C to 5°C.

[0048] In this embodiment, the thicknesses of the first aluminum box and the second aluminum box are 10 mm to 15 mm, and both the first phase change material and the second phase change material are microencapsulated phase change materials.

[0049] In this embodiment, the length × width × height of the self-insulating phase change block 4 is 390 mm × 280 mm × 190 mm. The base material of the self-insulating phase change block 4 is ceramsite concrete, and the thermal conductivity of the ceramsite concrete is 0.53 W·m -1 ·K -1 , the thermal conductivity of the EPS insulation board is 0.036 W·m -1 ·K -1 , the phase change material uses paraffin, and its thermal conductivity is 0.2 W·m -1 ·K -1 .

[0050] In this embodiment, the thicknesses of the first row of through holes, the second row of through holes, and the third row of through holes are the same.

[0051] In this embodiment, the water flow velocity in the capillary branch pipe 5-4 is 0.15 m / s.

[0052] In this embodiment, both the first through hole 4-1 and the third through hole 4-4 are rectangular through holes with a size of 167 mm × 68 mm.

[0053] In this embodiment, the second largest through hole 4-2 is a rectangular through hole with a size of 176 mm × 68 mm, and the second smallest through holes 4-3 are all rectangular through holes with a size of 83 mm × 68 mm.

[0054] In this embodiment, the widths of the concrete vertical ribs between the two first through holes 4-1 and between the two third through holes 4-4 are both 20 mm, and the width of the concrete vertical rib between the second largest through hole 4-2 and the second smallest through hole 4-3 is 24 mm.

[0055] In this embodiment, the widths of the concrete horizontal ribs between the long sides of the first through hole 4-1 and the second largest through hole 4-2 or the second smallest through hole 4-3 and between the long sides of the third through hole 4-4 and the second largest through hole 4-2 or the second smallest through hole 4-3 are both 18 mm.

[0056] In this embodiment, the widths of the concrete vertical ribs between the wide sides of the first through hole 4-1 and the wide side of the self-insulating phase change block 4 and between the wide sides of the third through hole 4-4 and the wide side of the self-insulating phase change block 4 are both 18 mm. The widths of the concrete horizontal ribs between the long sides of the first through hole 4-1 and the long side of the self-insulating phase change block 4 and between the long sides of the third through hole 4-4 and the long side of the self-insulating phase change block 4 are both 20 mm.

[0057] In summary, the structure of the present utility model is simple and reasonably designed. By combining the self-insulating phase change blocks and the capillary network grids, and embedding the capillary network grids in the plastering mortar layer on the inner surface of the block wall, the combination of active and passive energy storage is realized, and the energy storage capacity of the wall can be comprehensively adjusted actively and passively, so as to meet the indoor temperature control requirements under different climate conditions, different seasons and different building loads, and has a remarkable energy-saving effect.

[0058] The above are only the preferred embodiments of the present utility model, and do not impose any limitations on the present utility model. Any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A self-insulating phase change block wall combining active and passive energy storage, characterized in that: It comprises a thermal insulation phase change building block layer constructed of a plurality of self-insulating phase change building blocks (4), an outer mortar layer (1) arranged on the outer surface of the thermal insulation phase change building block layer, an inner mortar layer (2) arranged on the inner surface of the thermal insulation phase change building block layer, and a capillary grid (5) embedded in the inner mortar layer (2), wherein a connecting mortar layer (3) is arranged between two adjacent self-insulating phase change building blocks (4); The self-insulating phase change building block (4) is provided with a first row of through holes, a second row of through holes and a third row of through holes, wherein the first row of through holes, the second row of through holes and the third row of through holes are arranged along the width direction of the self-insulating phase change building block (4); The first row of through holes includes two first through holes (4-1), the second row of through holes includes a second large through hole (4-2) and two second small through holes (4-3) symmetrically arranged on both sides of the second large through hole (4-2), and the third row of through holes includes two third through holes (4-4); The first through hole (4-1), the second large through hole (4-2) and the second small through hole (4-3) are provided with EPS insulation boards, and the third through hole (4-4) is provided with a phase change material block.

2. A self-insulating phase change block wall combining active and passive energy storage according to claim 1, characterized in that: The capillary grid (5) comprises a water inlet main pipe (5-1), a water return main pipe (5-2), and a plurality of capillary branches (5-4) connected between the water inlet main pipe (5-1) and the water return main pipe (5-2), wherein the capillary branches (5-4) are U-shaped; A plurality of positioning tube clamps (5-3) are arranged on the capillary branch tube (5-4), and the positioning tube clamp (5-3) comprises a plurality of integrally formed tube clamp grooves (5-3-1) for the capillary branch tube (5-4) to pass through.

3. A self-insulating phase change block wall combining active and passive energy storage according to claim 1, characterized in that: A first phase-change material block is inserted into one of the third through holes (4-4), and a second phase-change material block is inserted into another of the third through holes (4-4), wherein the first phase-change material block comprises a first aluminum box inserted into one of the third through holes (4-4) and a first phase-change material filled in the first aluminum box; The second phase-change material block comprises a second aluminum box inserted in another of the third through holes (4-4) and a second phase-change material filled in the second aluminum box; the phase-change temperature of the first phase-change material is lower than the phase-change temperature of the second phase-change material.

4. A self-insulating phase change block wall combining active and passive energy storage according to claim 1, characterized in that: The length directions of the first through hole (4-1), the second large through hole (4-2), the second small through hole (4-3) and the third through hole (4-4) are arranged along the length direction of the self-insulating phase change building block (4); and the width directions of the first through hole (4-1), the second large through hole (4-2), the second small through hole (4-3) and the third through hole (4-4) are arranged along the width direction of the self-insulating phase change building block (4); The first through hole (4-1) and the third through hole (4-4) are symmetrically arranged; the lengths of the first through hole (4-1) and the third through hole (4-4) are both shorter than the length of the second large through hole (4-2); the widths of the first through hole (4-1), the second large through hole (4-2), the second small through hole (4-3) and the third through hole (4-4) are all the same; the second small through hole (4-3) passes through to the wide side of the self-insulating phase change building block (4); the projections of the second large through hole (4-2) and the first through hole (4-1) on the long side of the self-insulating phase change building block (4) have an overlapping area; and the projections of the second large through hole (4-2) and the third through hole (4-4) on the long side of the self-insulating phase change building block (4) have an overlapping area.

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