CN210089467U - A light-transmitting enclosure structure with energy supply and energy storage functions - Google Patents

Abstract

The utility model discloses a light-transmitting enclosure structure with the functions of energy supply and energy storage, so as to make full use of the night valley electricity time to store energy and reduce the operation cost. Including non-translucent wall, source-side active energy supply system, intermediate heat exchange device and terminal active energy supply and storage system; source-side active energy supply system includes source-side cold and heat source device and source-side water pump, source-side active energy supply system The cold and heat source device, the source end water pump and the intermediate heat exchange device are connected to form a source end energy supply cycle, and the terminal active energy supply and storage system includes at least one set of active heat exchange energy storage units and an end cycle power device; active heat exchange The energy storage unit includes a heat exchange unit connected by heat exchange tubes and an energy storage cavity placed outside the heat exchange tube, and the active heat exchange energy storage unit is placed in the air cavity; the active heat exchange energy storage unit, the end cycle The power device communicates with the intermediate heat exchange device to form an end heat exchange energy storage cycle. The system can reduce the heat transfer temperature difference between the inner surface of the envelope and the interior, reducing operating costs.

Description

A light-transmitting enclosure structure with energy supply and energy storage functions

technical field

The utility model relates to the technical field of energy saving, in particular to a light-transmitting enclosure structure system with energy supply and energy storage functions.

Background technique

The envelope structure is mainly divided into two categories: light-transmitting envelope structure and non-light-transmitting envelope structure. Light-transmitting envelopes are favored by architects and users alike due to their aesthetic appearance. Due to its larger heat transfer coefficient than that of the thermal insulation wall, and because of its relatively small heat capacity, the light-transmitting envelope structure has relatively poor thermal resistance and thermal inertia (heat storage performance), resulting in energy loss. Consumption is always high.

At present, researchers mainly use new light-transmitting materials and more layers of insulating glass to reduce the heat transfer coefficient of the light-transmitting building envelope. Although the heat transfer coefficient is reduced and the overall thermal resistance is increased, it still cannot solve the problem of heat storage. Poor performance and poor residential thermal comfort.

The patent application with the application number of 201510201785.3 and the utility model creation name "A double-layer glass enclosure system with cooling and shading functions" discloses a glass enclosure system. The cooling water from the external cold source directly takes away part of the heat absorbed by the shading louvers, so that it does not enter the room and becomes an air-conditioning load, so as to reduce the energy consumption of mechanical refrigeration. Although the system can reduce the temperature difference between the two sides of the envelope by supplying cooling water and thus reduce the energy consumption of the air conditioner, the system is connected from the source end (cold source) to the end (shading structure) through a set of water circulation system. The reduction of the temperature difference depends on the continuous circulation and supply of cooling water, resulting in high energy consumption of the water pump cycle. Because the pipeline from the source end to the end is too long and the resistance is too large, the energy loss of the pump is also relatively large. In addition, the system belongs to a centralized energy supply system, which cannot realize household metering and independent control functions. The above-mentioned drawbacks together result in a poor overall techno-economics of the system.

Utility model content

The purpose of the utility model is to provide a light-transmitting enclosure structure with energy supply and energy storage functions in view of the technical defects existing in the prior art, which can make full use of the night valley electricity time for energy storage, and finally reduce the all-day light transmission. The heat transfer temperature difference between the inner surface of the envelope and the interior achieves the dual purpose of improving the thermal performance of the building envelope and reducing the building heating/cooling operating costs.

The technical scheme adopted for realizing the purpose of the present utility model is:

A light-transmitting enclosure structure with energy supply and energy storage functions, comprising a non-light-transmitting wall, a source-end active energy supply system, an intermediate heat exchange device and an end-end active energy supply and energy storage system; the non-light-transmitting energy supply system The wall body includes an outer transparent layer and an inner transparent layer, and an air cavity is formed between the inner transparent layer and the outer transparent layer; the source-side active energy supply system includes a source-side cold and heat source device and a source-side water pump , the source end cold and heat source device, the source end water pump and the intermediate heat exchange device are connected to form a source end energy supply cycle, and a source end heat exchange working medium is arranged in the source end energy supply cycle; the end active type The energy supply and energy storage system includes at least one group of active heat exchange energy storage units and a terminal cycle power device; the active heat exchange energy storage unit includes a heat exchange unit connected by heat exchange tubes and a set of An energy storage cavity outside the tube, a terminal heat exchange working medium is arranged in the heat exchange tube, and an energy storage working medium is arranged in the energy storage cavity; the active heat exchange energy storage unit is placed in the air cavity; The active heat exchange and energy storage unit, the terminal cycle power device and the intermediate heat exchange device communicate with each other to form a terminal heat exchange and energy storage cycle.

The cross section of the heat exchange tube is circular, a fixed body with a circular cross section is arranged on the outside of the heat exchange tube, and the energy storage cavity is radially arranged along the outside of the fixed body.

A sunshade louver is installed on the outer side of the energy storage cavity, and the fixed body and the heat exchange tube are slidably connected.

The sunshade louver is connected with the adjustment controller through the adjustment rod.

The intermediate heat exchange device is a casing heat exchanger, a plate heat exchanger or a spiral plate heat exchanger.

The source-side cold and heat source device is source-side equipment for collecting low-grade renewable energy.

The source-side cold and heat source device is any one of an air source heat pump, a solar collector, a buried pipe, a cooling tower and a space radiant panel.

The end heat exchange working fluid is water or heat-conducting oil added with antifreeze; the source heat-exchange working fluid is water or heat-conducting oil added with antifreeze.

The energy storage working medium is an organic phase change working medium or an inorganic phase change working medium.

When the terminal active energy supply and energy storage system adopts multiple groups of active heat exchange and energy storage units, multiple groups of the active heat exchange and energy storage units are connected in parallel and then connected to the intermediate heat exchange device to realize heat exchange; Each group of the active heat exchange and energy storage units forms respective heat exchange and energy storage cycles through the respective end cycle power devices and the intermediate heat exchange device.

Compared with the prior art, the beneficial effects of the present utility model are:

1. When the light-transmitting enclosure structure of the present invention is used in winter, the condensing function of the heat exchange working medium in the heat exchange tube is used to provide thermal energy for the air cavity, and at the same time, the energy storage function is realized by using the energy storage working medium in the energy storage cavity, Utilizing the low-grade renewable energy collected by the source equipment that collects low-grade renewable energy can improve the thermal insulation performance and thermal inertia of the light-transmitting envelope in winter, and greatly reduce the heat transfer temperature difference between the light-transmitting envelope and the interior. , reduce the problem of high energy consumption and poor living comfort caused by heat transfer temperature difference. Since the heat storage performance of the light-transmitting envelope structure is greatly improved, the utility model can satisfy and maintain the thermal performance of the light-transmitting envelope structure at night and short-term cloudy conditions in winter.

2. When the light-transmitting enclosure structure of the present invention is used in summer, the evaporation function of the phase change medium is used to provide cold energy for the air cavity, and at the same time, the phase change medium is used to realize the energy storage function, which is of great benefit to the collection of low-grade renewable energy. The utilization of low-grade renewable energy collected by the source equipment can improve the thermal inertia of the light-transmitting envelope structure in summer, greatly reduce the cold conduction between the light-transmitting envelope structure and the room, and reduce the energy consumption of indoor air conditioners.

3. The light-transmitting enclosure structure of the present invention has shading louvers, which can realize the summer shading function and demand of the enclosure structure.

4. The source end of the utility model adopts a centralized energy supply design, and the end adopts a decentralized energy supply design. During the operation process, the start and stop of each end heat exchange pipeline can be independently controlled according to the actual demand, which can facilitate the realization of the end-to-end energy supply. metering.

5. The light-transmitting enclosure structure of the present invention can make full use of the valley electricity time at night to store energy, thereby reducing the operation cost of building heating/cooling.

Description of drawings

1 shows a partial cross-sectional view of the light-transmitting enclosure structure with energy supply and energy storage functions of the present invention;

Fig. 2 shows the A-A cross-sectional view of Fig. 1;

Figure 3 shows a cross-sectional view of an active heat exchange energy storage unit.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

The schematic diagrams of the light-transmitting enclosure structure with energy supply and energy storage functions of the present invention are shown in Figures 1 to 2, including a non-light-transmitting wall, an active energy supply system at the source end, an intermediate heat exchange device 6 and an active end active energy supply system. energy storage system. The non-transparent wall includes an outer translucent layer 1 and an inner translucent layer 2 , and an air cavity 3 is formed between the inner translucent layer 2 and the outer translucent layer 1 . The source-side active energy supply system includes a source-side cold and heat source device 14 and a source-side water pump 13. The source-side cold and heat source device 14, the source-side water pump 13 communicate with the intermediate heat exchange device 6 to form a source-side power supply. An energy cycle is provided, and a source end heat exchange working medium is arranged in the source end energy supply cycle. The source-end heat exchange working fluid can be water with antifreeze added, or heat-conducting oil. The terminal active energy supply and energy storage system includes at least one group of active heat exchange energy storage units and a terminal cycle power device 9 . The active heat exchange and energy storage unit includes a heat exchange unit connected by a heat exchange tube 7 and an energy storage cavity 8 placed outside the heat exchange tube 7. The heat exchange tube 7 is provided with a terminal heat exchange. As the working fluid, the end heat exchange working fluid can use water with antifreeze, and can use heat transfer oil. The energy storage cavity 8 is provided with an energy storage working medium, and the energy storage working medium is an organic phase change working medium or an inorganic phase change working medium. The active heat exchange and energy storage unit is placed in the air cavity 3 . The active heat exchange and energy storage unit, the terminal cycle power device 9 and the intermediate heat exchange device 6 communicate with each other to form a terminal heat exchange and energy storage cycle. The active energy supply system at the source end and the active energy supply and storage system at the end are connected through the intermediate heat exchanger 6 to realize heat exchange, transfer and storage. The intermediate heat exchange device is a casing heat exchanger, a plate heat exchanger or a spiral plate heat exchanger. The source-side cold and heat source device is a source-side device that collects low-grade renewable energy, such as any one of an air source heat pump, a solar collector, a buried pipe, a cooling tower, and a space radiant panel. The end circulation power device 9 is a water pump.

When the terminal active energy supply and energy storage system adopts multiple groups of active heat exchange and energy storage units, the multiple groups of active heat exchange and energy storage units are connected in parallel and then connected to the intermediate heat exchange device 6 to realize heat exchange. Each group of the active heat exchange and energy storage units forms respective heat exchange and energy storage cycles with the intermediate heat exchange device 6 through respective end cycle power devices 9 .

In this embodiment, the cross-sectional view of the active heat exchange and heat storage unit 4 is shown in FIG. 3 , the cross section of the heat exchange pipe 7 is circular, and the outside of the heat exchange pipe 7 is provided with a fixed circular cross section. body 10 , the energy storage cavity 8 is radially arranged along the outside of the fixed body 10 .

In order to realize shading in summer, a shading louver 5 is installed on the outer side of the energy storage cavity 8 , and the fixed body 10 is slidably connected with the heat exchange tube 7 . A lubricating medium is provided between the heat exchange tube 7 and the fixing body 10 , and the lubricating medium may be graphite, heat transfer oil or butter.

In order to facilitate the opening and closing of the sunshade louver, the sunshade louver 5 is connected with the adjustment controller 11 through the adjustment rod 12 .

The phase-change energy storage working medium can be selected from an organic phase-change working medium or an inorganic phase-change working medium. Organic phase change working fluids such as paraffin, etc.; inorganic phase change working fluids such as calcium chloride pentahydrate, etc.

Energy supply mode: in winter/summer room at night valley electricity time, the source end water pump 13 is started, and the source end active energy supply system transports the cold/hot water produced by the source end cold and heat source device 14 to the intermediate heat exchanger 6 At this time, the terminal cycle power device 9 is activated according to the demand on the user side. When the user side has a demand for cooling (or heating), the corresponding terminal cycle power device 9 is activated, and the cooling capacity (or heat) is passed through the terminal heat exchange. The working fluid is transported to the active heat exchange and heat storage unit 4, and the cold or heat is stored in the energy storage cavity 8, so as to reduce the temperature difference between the inner light-transmitting layer 2 and the room. During the daytime peak power time in winter/summer, turn off the source-end water pump 13 and the end-end circulating power device 9. At this time, the active energy supply and storage system continuously reduces the inner light-transmitting layer 2 and the indoor air by releasing the cold or heat in the energy storage cavity 8. Therefore, the purpose of reducing building energy consumption and improving residential thermal comfort is achieved all-weather. Due to the full use of peak and valley electricity prices, the light-transmitting enclosure structure with energy supply and energy storage functions of the present invention can also greatly reduce the operating cost of the building energy supply system. The light-transmitting enclosure structure of the utility model can be used in the fields of curtain wall buildings, windows, roofs, agricultural greenhouses, agricultural greenhouses and the like.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications can be made without departing from the principles of the present invention. Improvement and modification should also be regarded as the protection scope of the present invention.

Claims (9)

1. A light-transmitting enclosure structure with energy supply and storage functions is characterized by comprising a non-light-transmitting wall body, a source end active energy supply system, a middle heat exchange device and a tail end active energy supply and storage system; the non-light-transmitting wall body comprises an outer light-transmitting layer and an inner light-transmitting layer, and an air cavity is formed between the inner light-transmitting layer and the outer light-transmitting layer; the source end active energy supply system comprises a source end cold and heat source device and a source end water pump, the source end cold and heat source device, the source end water pump and the intermediate heat exchange device are communicated to form a source end energy supply cycle, and a source end heat exchange working medium is arranged in the source end energy supply cycle; the tail end active energy supply and storage system comprises at least one group of active heat exchange and storage units and a tail end circulating power device; the active heat exchange and energy storage unit comprises a heat exchange unit and an energy storage cavity, wherein the heat exchange unit is formed by communicating heat exchange tubes, the energy storage cavity is arranged outside the heat exchange tubes, a tail end heat exchange working medium is arranged in the heat exchange tubes, and an energy storage working medium is arranged in the energy storage cavity; the active heat exchange and energy storage unit is arranged in the air cavity; the active heat exchange energy storage unit, the tail end circulating power device and the middle heat exchange device are communicated to form tail end heat exchange energy storage circulation.

2. A light-transmitting enclosure with energy supply and storage functions as claimed in claim 1, wherein the cross section of the heat exchange tube is circular, a fixing body with a circular cross section is arranged outside the heat exchange tube, and the energy storage cavities are radially arranged along the outside of the fixing body.

3. A light-transmitting enclosure with energy supply and storage functions as claimed in claim 2, wherein a sun-shading louver is installed outside the energy storage cavity, and the fixing body is connected with the heat exchange tube in a sliding manner.

4. A light-transmitting enclosure with energy supply and storage functions as claimed in claim 3, characterized in that the sun-shading louver is connected with the adjusting controller through an adjusting rod.

5. A light transmission enclosure with energy supply and storage functions as claimed in claim 3, wherein the intermediate heat exchange device is a double pipe heat exchanger, a plate heat exchanger or a spiral plate heat exchanger.

6. A light-transmitting enclosure with energy supply and storage functions as claimed in claim 1, wherein the source cold and heat source device is a source device for collecting low-grade renewable energy.

7. A light-transmitting envelope with energy supply and storage functions as claimed in claim 6, wherein the source cold and heat source device is any one of an air source heat pump, a solar heat collector, a buried pipe, a cooling tower and a space radiant panel.

8. A light-transmitting envelope with energy supply and storage functions as claimed in claim 1, wherein the energy storage working medium is an organic phase-change working medium or an inorganic phase-change working medium.

9. The light-transmitting enclosure structure with energy supply and storage functions of claim 1, wherein when the terminal active energy supply and storage system adopts a plurality of groups of active heat exchange and storage units, the plurality of groups of active heat exchange and storage units are connected in parallel and then connected with the intermediate heat exchange device to realize heat exchange; and each group of active heat exchange energy storage units form respective heat exchange energy storage circulation with the intermediate heat exchange device through the respective tail end circulation power device.

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