CN-121611239-B - Photovoltaic-thermocatalytic coupling multistage energy storage Trombe wall and temperature control method

CN121611239BCN 121611239 BCN121611239 BCN 121611239BCN-121611239-B

Abstract

The invention belongs to the field of solar building integration, and discloses a photovoltaic-thermocatalytic coupling multistage energy storage Trombe wall and a temperature control method, wherein the Trombe wall comprises a wall, a glass partition wall, a glass outer wall, an inner ventilation purification channel, an outer photovoltaic heat exchange channel, an upper ventilation opening, a lower ventilation opening, an outer ventilation opening, a baffle plate and a photovoltaic plate, clamping grooves are formed in the wall and the glass partition wall, an inner catalysis sheet group is arranged on the glass partition wall, a thermocatalysis panel is arranged on the wall, a serpentine water pipe is arranged in the thermocatalysis panel, a micro-channel heat exchange pipe is embedded in a space of the serpentine water pipe, and phase change materials are filled in the micro-channel heat exchange pipe. The temperature control method is divided into a summer high-temperature environment operation mode and a winter low-temperature environment operation mode. The solar energy self-adaptive solar energy generation system integrates multiple functions of photovoltaic power generation, air purification, ventilation regulation and phase change energy storage, realizes efficient multi-stage utilization of solar energy and season self-adaptive operation, and is suitable for the solar energy building integrated industry.

Inventors

LI HONGTAO
LIANG LIQIANG
DONG FUQIANG
TANG ZHIQIANG
HAN JIANTIAN
ZHANG CUIMIN
SUN ZHILI

Assignees

河北科技大学
河北省第四建筑工程有限公司

Dates

Publication Date: 20260505
Application Date: 20260203

Claims (8)

1. A photovoltaic-thermocatalytic coupling multistage energy storage Trombe wall comprises a wall, a glass outer wall and a glass partition wall arranged between the wall and the glass outer wall, wherein an inner side ventilation purification channel is formed between the glass partition wall and the wall, an outer side photovoltaic heat exchange channel is formed between the glass partition wall and the glass outer wall, an upper ventilation opening and a lower ventilation opening are arranged on the wall at intervals along the vertical direction, an outer ventilation opening is arranged at the position, corresponding to the upper ventilation opening, on the glass partition wall, a ventilation cap is connected with the tops of the wall, the glass partition wall and the glass outer wall together, a baffle is rotatably arranged in the inner side ventilation purification channel and controlled to rotate by a driving piece, a photovoltaic plate is embedded in the glass outer wall, and the photovoltaic plate is characterized in that clamping grooves matched with the baffle are formed in the wall and the glass partition wall, the baffle closes the upper ventilation opening when the baffle is clamped with the wall clamping grooves to open the outer ventilation opening, and closes the upper ventilation opening when the baffle is clamped with the glass partition wall clamping grooves; The glass partition wall is provided with an inner catalytic sheet group with a first catalyst coating coated on the surface, and a thermal catalytic panel with a second catalyst coating coated on the surface, wherein the glass partition wall is provided with a second catalyst coating coated on the surface; The glass outer wall is fixedly provided with a first heat conducting fin towards one side of the glass partition wall, the first heat conducting fin is vertically fixedly provided with a second heat conducting fin, the first heat conducting fin extends along the vertical direction, the second heat conducting fin extends along the horizontal direction, the second heat conducting fin penetrates through the glass partition wall and extends into the inner side ventilation purification channel, and the inner catalytic sheet group is fixed at one end of the second heat conducting fin, which is positioned in the inner side ventilation purification channel; the position that is close to outer vent on the glass partition wall is provided with the guide plate, and the guide plate is arranged in the outside photovoltaic heat transfer passageway, and the guide plate bottom is connected with the glass partition wall, and the guide plate top just extends towards the direction slope that keeps away from the glass partition wall to the top.
2. The photovoltaic-thermocatalytically coupled multi-stage energy storage Trombe wall of claim 1 wherein the gap between the outer wall of the microchannel heat exchange tube and the outer wall of the serpentine water tube is filled with a heat conducting adhesive.
3. The photovoltaic-thermocatalytically coupled multi-stage energy storage Trombe wall of claim 2, wherein the first and second catalyst coatings are transition metal oxide MnO x -CeO 2 thermocatalyst coatings each having a thickness of 5-20 μm.
4. The photovoltaic-thermocatalytically coupled multi-stage energy storage Trombe wall of claim 3, wherein the photovoltaic panels are arranged in an array, and the coverage rate of the photovoltaic panels on the glass outer wall is 0.5-0.7.
5. The photovoltaic-thermocatalytically coupled multi-stage energy storage Trombe wall of claim 1 wherein the inner catalytic sheet assembly comprises a plurality of inner catalytic sheets disposed in parallel and spaced apart relation and extending in a vertical direction, the inner catalytic sheet assembly being of a fin configuration.
6. The photovoltaic-thermocatalytically coupled multi-stage energy storage Trombe wall of claim 5, wherein an outer fin group is fixed on a surface of the first heat conducting fin facing the glass partition wall, the outer fin group comprises a plurality of outer fins which are arranged at intervals in parallel and extend in a vertical direction, and the outer fin group is of a fin structure.
7. The photovoltaic-thermocatalytically coupled multi-stage energy storage Trombe wall of claim 6 wherein the first thermally conductive sheet and the second thermally conductive sheet are each made of an aluminum alloy material.
8. A temperature control method employing the photovoltaic-thermocatalytically coupled multi-stage energy storage Trombe wall according to any one of claims 1 to 7, the method comprising the following modes of operation: summer high temperature environment operation mode: the driving piece controls the baffle plate to swing to be clamped with the wall clamping groove so as to close the upper ventilation opening and open the outer ventilation opening on the glass partition wall, so that a unidirectional heat dissipation airflow path which flows from indoor through the inner ventilation purification channel and then flows into the outer photovoltaic heat exchange channel through the outer ventilation opening, and finally is discharged to outdoor through the ventilation cap, and the indoor rapid ventilation and cooling are realized; The solar light irradiates the photovoltaic plate to generate electric energy and heat, the heat is transferred to an outer radiating fin group in an outer photovoltaic heat exchange channel through a first heat conducting fin to radiate heat, and is transferred to an inner catalytic fin group in an inner ventilation purification channel through a second heat conducting fin to excite a catalytic reaction, so that air flowing in the inner ventilation purification channel is purified, and ventilation, heat radiation and purification functions are synchronously completed; The multistage energy storage system operates in a waste heat recovery mode in summer, after the heat catalytic panel absorbs the heat transferred by the second heat conducting fins, on one hand, the internal catalytic fin group is assisted to strengthen the purification effect, on the other hand, a small amount of waste heat is transferred to circulating water through a serpentine water pipe, the serpentine water pipe is connected with an indoor hot water supply system, so that the slight recycling of the waste heat is realized; winter low temperature environment operation mode: the air circulation and heating are cooperated, the driving piece controls the baffle plate to swing to be clamped with the clamping groove on the glass partition wall so as to close the outer vent and open the upper vent, indoor cold air enters the inner ventilation purification channel through the lower vent and flows through the inner catalysis sheet group and the thermal catalysis panel, heat generated by the photovoltaic panel is transferred to the inner catalysis sheet group through the second heat conducting sheet under the irradiation of sunlight, and the thermal catalysis panel absorbs direct sunlight heat to jointly heat air in the inner ventilation purification channel; The photovoltaic-thermal catalysis-energy storage cooperation is realized by the fact that heat generated by the photovoltaic plate is transferred to the inner catalysis plate group and the thermal catalysis panel through the first heat conduction plate and the second heat conduction plate, the heat is used for heating circulating air and exciting a catalytic purification reaction, the heat is transferred to the serpentine water pipe through the thermal catalysis panel on the one hand, circulating water in the serpentine water pipe is heated, meanwhile, phase-change materials in the micro-channel heat exchange pipe absorb the heat transferred by the serpentine water pipe and the thermal catalysis panel to realize heat storage, when sunlight is not available, the phase-change materials slowly release the stored heat and transfer the stored heat to the serpentine water pipe and the thermal catalysis panel through the micro-channel heat exchange pipe, on the one hand, the basic reaction temperature of the second catalyst coating is maintained, light purification of night air is guaranteed, on the other hand, the heat is continuously released to the indoor through the serpentine water pipe and continuous operation of daytime heating and night energy storage and heat release is realized.

Description

Photovoltaic-thermocatalytic coupling multistage energy storage Trombe wall and temperature control method Technical Field The invention belongs to the field of solar building integration, and particularly relates to a photovoltaic-thermocatalytic coupling multistage energy storage Trombe wall and a temperature control method. Background Trombe is a unique heat collection wall, and can passively collect solar energy to heat a building without mechanical power and traditional energy sources. The Trombe walls realize hot-pressing ventilation and heating heat accumulation through the air channels formed between the glass and the walls, so that the dependence of the building on traditional energy sources is reduced, and the requirements of low-carbon buildings are met. In recent years, optimization studies on Trombe walls have been advanced. For example, patent publication No. CN110779137a discloses a Trombe wall body suitable for multi-story building, in which a glass partition wall is provided between the glass wall and the wall to divide the air passage into two layers, i.e., an inner layer and an outer layer, so as to realize free switching between a ventilation state and a closed state. The rotatable first wind shield is arranged at the wall ventilation opening, so that the problem that air at low floors in the multi-storey building flows backward to high floors can be prevented. Although the natural ventilation effect is improved, the function is limited to ventilation and basic heating, and the temperature difference between day and night in winter can reach 8-12 ℃, the patent only depends on solar energy to heat air for heating, and a continuous heat release mechanism is not provided at night, so that the continuous heating is not provided at night in winter. The patent with the publication number of CN113790492B discloses a Trombe wall combining partial coverage type photovoltaic and thermocatalysis, which integrates multiple functions of heating, ventilation, air purification, power generation, hot water supply and the like by embedding a solar photovoltaic cell module in a high-transmittance glass plate, loading a thermocatalyst coating on the surface of a metal heat absorption plate and realizing hot water supply by matching with a coiled pipe. Compared with the patent with the publication number of CN110779137A, the energy storage mode is single, short-term heat storage is only carried out by the circulating water in the coiled pipe, the energy storage mode is insufficient for continuously heating indoor at night in winter, and correspondingly, the recovery efficiency of the excessive heat in summer is low. Disclosure of Invention In order to solve the defects in the prior art, the invention aims to provide a photovoltaic-thermocatalytic coupling multistage energy storage Trombe wall body and a temperature control method, so as to achieve the aims of realizing efficient multistage utilization of solar energy and season self-adaptive operation through integrated synergistic effect of photovoltaic power generation, air purification, ventilation regulation and multistage energy storage. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: The invention provides a photovoltaic-thermocatalytic coupling multistage energy storage Trombe wall, which comprises a wall, a glass outer wall and a glass partition wall arranged between the wall and the glass outer wall, wherein an inner ventilation purification channel is formed between the glass partition wall and the wall, an outer photovoltaic heat exchange channel is formed between the glass partition wall and the glass outer wall, an upper ventilation opening and a lower ventilation opening are arranged on the wall at intervals along the vertical direction, an outer ventilation opening is arranged at the position, corresponding to the upper ventilation opening, on the glass partition wall, the top of the wall, the glass partition wall and the top of the glass outer wall are commonly connected with a ventilation cap, a baffle is rotatably arranged in the inner ventilation purification channel and controlled to rotate by a driving piece, a photovoltaic plate is embedded in the glass outer wall, clamping grooves matched with the baffle are formed in the wall and the glass partition wall, the baffle is clamped with the wall clamping grooves to seal the upper ventilation opening when the baffle is clamped with the glass partition wall clamping grooves to seal the outer ventilation opening; The glass partition wall is provided with an inner catalytic sheet group with a first catalyst coating coated on the surface, the glass partition wall is provided with a thermal catalytic panel with a second catalyst coating coated on the surface, a serpentine water pipe is arranged in the thermal catalytic panel, a micro-channel heat exchange pipe is embedded in a gap of the serpentine water pipe, and a phase change material is fi