A heat storage structure using capillaries to flow and exchange heat in phase change materials
A technology of phase change materials and capillary tubes, which is applied in the direction of household heating, application, heating methods, etc., to achieve the effect of reducing operating costs, simple structure, and ideal heat dissipation effect
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Embodiment 1
[0025] See Figure 1-3 , A heat storage structure that uses capillary tubes to flow and exchange heat in a phase change material, comprising at least one shell 1, the shell 1 is a cuboid box-shaped structure, and a ring of insulation layer 2 is arranged on the inside of the shell 1. The body 1 is installed with a diagonally arranged water inlet static pressure box 3 and a water outlet static pressure box 4, and a plurality of equidistantly arranged first capillary main pipes 6 are installed at the outlet end of the water inlet static pressure box 3 to be sealed. The water inlet end of the static pressure box 4 is sealed with several second capillary main pipes 9 corresponding to the first capillary main pipe 6, and the first capillary main pipes 6 and the second capillary main pipes 9 in the same row are arranged at equal distances. The capillaries 7 are in communication with each other, and the capillaries 7 are filled with a phase change material 8.
[0026] The cross section o...
Embodiment 2
[0032] First construct the shell 1 and the insulation layer 2, which can be made into a reinforced concrete structure or a stainless steel structure. figure 1 The way to reserve the water inlet static pressure box 3 and the water outlet static pressure box 4, arrange the capillary net composed of the first capillary main pipe 6, the second capillary main pipe 9 and the capillary 7 in the water tank, the first capillary in the capillary net The main pipe 6 is inserted into the inlet hydrostatic tank 3, and the second capillary main pipe 9 is inserted into the outlet hydrostatic tank 4. If the capillary tube 7 is too long, a wire can be pulled in the middle for support. In the evening valley electricity period (usually 11 pm-6 o'clock the next day), valley electricity drives the heat pump to prepare hot water into the capillary 7, and stores the heat in the phase change material 8 through convection and heat conduction, and the phase change material 8 begins to occur The phase cha...
Embodiment 3
[0034] Assuming that the surrounding insulation of the phase change heat storage system is ideal and there is no heat loss, according to the principle of symmetrical structure, only the heat exchange between a capillary tube 7 and the surrounding phase change material needs to be simulated, which can reflect the performance of the overall phase change heat storage system.
[0035] The melting-solidification model of CFD is used for simulation, and the simulation conditions are as follows:
[0036] (1) The diameter of the capillary is 4mm, the length is 6m, and the thermal conductivity of the phase change material is 0.2W / (mK);
[0037] (2) Peripheral insulation;
[0038] (3) The initial temperature is 42℃;
[0039] (4) The inlet water temperature during heat storage is 50°C (simulating the water supply temperature of floor heating);
[0040] (5) The inlet water temperature during heat storage is 38℃ (simulating the return water temperature of floor heating);
[0041] See simulation result...
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