CN104964369A - Semi-conductor radiation air conditioning device driven by solar energy - Google Patents

Abstract

The invention discloses a semiconductor radiant air-conditioning device driven by solar energy, which includes an air-conditioning component and a solar component. The air-conditioning component includes a steel plate, a semiconductor thermopile and a water-cooled heat exchanger. Between the heaters; the semiconductor thermopile is composed of multiple groups of semiconductor components, and each group of semiconductor components is formed by parallel connection of multiple semiconductor cooling plates; the solar module includes photovoltaic modules, controllers, battery packs, inverters and A water pump; the photovoltaic module converts solar energy into electric energy and stores it in a battery pack, and the battery pack provides electric energy for a semiconductor thermopile and a water pump; the water pump is connected to a water-cooled heat exchanger. The invention realizes the adjustment and switching of the temperature of the radiant panel and the mode of cooling and heating by changing the current direction and quantity of the semiconductor refrigerating sheets, and solves the problem of dew condensation and thermal inertia of the existing radiant air conditioner, and has good thermal comfort, good economy, High efficiency and other advantages.

Description

A semiconductor radiant air conditioner driven by solar energy

technical field

The invention belongs to the field of air-conditioning equipment, and more specifically relates to a semiconductor radiation air-conditioning device driven by solar energy.

Background technique

Air conditioning is a device capable of air conditioning, which refers to the process of adjusting and controlling the temperature, humidity, cleanliness, speed and other parameters of the ambient air in the building by manual means. In summer, because it is very hot, people need a cool and comfortable environment, and in cold winter, people need a warm and suitable environment. In order to meet the different environmental temperature, air quality and humidity required by people in different seasons and different environments, air-conditioning devices have appeared, and have gradually developed and become popular. The air conditioner can provide cold air in summer and hot air in winter, and has dehumidification and air purification functions, which can improve the quality of life and air quality.

Existing radiant air conditioners at home and abroad can be divided into water-medium radiant air conditioners and electric radiant heating air conditioners according to the medium. They use ground source heat pumps, compression refrigeration units, etc. to provide cold water and hot water to the ceiling, floor or walls to provide room. Cold and hot energy. Traditional water-based radiant air conditioners have environmental problems such as damage to the ozone layer or soil, as well as technical problems such as condensation or thermal inertia, while electrothermal radiation has the problem of high power consumption for heating.

Contents of the invention

Aiming at the above defects or improvement needs of the prior art, the present invention provides a semiconductor radiant air conditioner driven by solar energy, in which a semiconductor thermopile is installed, and a heat exchanger and a steel plate are respectively installed on its two end faces to expand the convection exchange rate. The thermal area and radiation heat exchange area improve the heat exchange efficiency. At the same time, by controlling the current size, current direction and the number of semiconductor refrigeration chips, the rapid adjustment of the surface temperature of the radiant plate and the switching of the cooling and heating modes of the air conditioner are realized, and the adjustment accuracy is accurate. Advantages, in addition, by using solar energy to convert electric energy to provide energy for air conditioning devices, it solves the current problem of independent energy supply and large power consumption of radiant air conditioners.

To achieve the above object, the present invention proposes a semiconductor radiant air conditioner driven by solar energy, which is characterized in that it includes an air conditioner assembly and a solar assembly, wherein:

The air conditioning assembly includes a steel plate, a semiconductor thermopile and a water-cooled heat exchanger, the semiconductor thermopile is embedded between the steel plate and the water-cooled heat exchanger; the semiconductor thermopile is composed of multiple groups of semiconductor components, Among them, each group of semiconductor components is composed of multiple semiconductor cooling chips connected in parallel, and each group of semiconductor components is controlled independently of each other;

The solar module includes a photovoltaic module, a controller, a battery pack, an inverter and a water pump connected in sequence; wherein, the photovoltaic module converts solar energy into electrical energy and stores it in the battery pack, which is the semiconductor thermopile and the water pump to provide electric energy; in addition, the water pump is connected to the inlet of the water-cooled heat exchanger.

As a further preference, there are preferably 3 groups of semiconductor components, and each group of semiconductor components is preferably composed of 4 vertically arranged semiconductor cooling chips.

As a further preference, the battery pack provides the DC current generated by it to the semiconductor thermopile through wires; a switch is arranged on the wires, and the direction of the DC current is controlled by adjusting the switches.

As a further preference, the temperature of the semiconductor thermopile is controlled by adjusting the number of operations of the semiconductor cooler; in the cooling mode, all the semiconductor coolers participate in the work; in the heating mode, the semiconductor cooler Partially involved in the work.

As a further preference, the DC current generated by the battery pack is used to generate AC current through the inverter for use by the water pump.

As a further preference, thermal conductive silicone grease is applied on the contact surfaces of the semiconductor thermopile, the steel plate and the water-cooled heat exchanger to enhance heat conduction and reduce contact thermal resistance.

As a further preference, the steel plate is a heat conduction plate, which performs radiation heat exchange and convective heat exchange with the indoor; the water-cooled heat exchanger performs convective heat exchange with the outdoor air.

As a further preference, the air conditioner is also provided with a water tank connected to the outlet of the water-cooled heat exchanger.

As a further preference, an insulating material is provided in the gap between the semiconductor thermopile, the steel plate and the water-cooled heat exchanger, so as to form a heat insulating layer between the steel plate and the water-cooled heat exchanger .

As a further preference, the thermal insulation material adopts airgel viscous rigid plate thermal insulation material, Follers foamed rubber and plastic thermal insulation material, foamed concrete or glass fiber.

Generally speaking, compared with the prior art, the above technical solution conceived by the present invention mainly has the following technical advantages:

1. The semiconductor radiant air-conditioning device driven by solar energy proposed by the present invention belongs to radiant air-conditioning equipment, and uses solar energy to convert electric energy to provide energy for the entire air-conditioning device, solving the independent energy supply problem and economical problems of current radiant air-conditioning; Refrigeration and heating can be realized without adding additional refrigerants, which solves the problems of the ozone layer hole and greenhouse effect caused by the Freon refrigerant of the existing radiant air conditioners; the cold end of the thermoelectric refrigeration sheet is isolated by using heat insulating materials, which solves the problem of condensation and heat dissipation in the current radiant air conditioners. Inertness problem; the use of water-cooled heat exchangers improves the efficiency of semiconductor radiant panels, and can quickly and accurately control the temperature of radiant panels and improve the thermal comfort of the room.

2. The semiconductor thermopile of the present invention is made of semiconductor refrigeration sheets in a certain arrangement, and heat exchangers and steel plates are respectively installed on its two end faces to expand the convective heat transfer area and the radiation heat transfer area to improve heat transfer efficiency. The room temperature distribution is uniform and the thermal comfort is good; the invention also researches and sets the specific working mode of the semiconductor thermopile, and controls the working quantity of the semiconductor refrigeration chip in real time through the change of the indoor temperature to accurately adjust the indoor temperature. Therefore, it is applicable to any environment; in addition, by changing the direction of the current, the heating mode and cooling mode of the air conditioner can be quickly switched, and the semiconductor refrigeration quickly reaches a stable state with the change of the current, which solves the thermal inertia problem of the existing radiant air conditioner.

3. The air-conditioning device of the present invention is compact in structure, easy to install, free from environmental pollution, and can operate with independent energy supply; compared with electric heating and PTC heating air-conditioning equipment, it can convert solar energy into the electric energy required for device operation, and the device consumes electricity Small volume, energy saving, and has dual modes of cooling and heating; the whole device has few mechanical moving parts, high reliability, easy repair and maintenance, long service life, small thermal inertia, good economy, no refrigerant, easy to control .

Description of drawings

Fig. 1 is a kind of semiconductor radiant air conditioner schematic diagram driven by solar energy of the present invention;

Fig. 2 is a schematic diagram of the structure of a semiconductor thermopile;

Fig. 3 is a schematic structural diagram of a water-cooled heat exchange tube;

Fig. 4 is a schematic diagram of a semiconductor radiant air conditioner for a room.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

The invention provides a semiconductor radiant air conditioner driven by solar energy. Semiconductor refrigeration (heating) is an electronic refrigeration (heating) technology based on the Peltier effect. , heat will be released at one end of the loop node, and heat will be absorbed at the other end. If the current is reversed, the heat release end and heat absorption end are just opposite.

As shown in Figure 1, a semiconductor radiant air-conditioning device driven by solar energy includes an air-conditioning assembly and a solar assembly, wherein: the air-conditioning assembly includes a steel plate 1, a semiconductor thermopile 2 and a water-cooled heat exchanger 3, and the semiconductor thermopile 2 is embedded Installed between the steel plate 1 and the water-cooled heat exchanger 3, that is, one end of the semiconductor thermopile 2 is connected to one end of the steel plate 1, and the other end of the semiconductor thermopile 2 is connected to one end of the water-cooled heat exchanger 3; The semiconductor thermopile 2 is composed of multiple groups of semiconductor components, wherein each group of semiconductor components is formed by a plurality of semiconductor cooling plates connected in parallel, and each group of semiconductor components is controlled independently of each other; , a controller 10, a battery pack 11, an inverter 12 and a water pump 4; the photovoltaic module 9 converts solar energy into electrical energy and stores it in the battery pack 11, and the battery pack 11 communicates with the semiconductor thermopile through a wire 8 The two ends of 2 are connected, and the DC current generated by the battery pack 11 is provided to the semiconductor thermopile 2 through the wire 8. The wire 8 is provided with a switch 13 and a switch 2 14, and the DC current is controlled by adjusting the switches 1 and 2. direction; the direct current generated by the battery pack 11 passes through the inverter 12 to generate an alternating current for the water pump 4 to reduce energy consumption, and the device can operate independently; the controller 10 can prevent the battery pack 11 from Occurrence of overcharging and overdischarging; the water pump 4 is connected to the inlet of the water-cooled heat exchanger 3 , and the outlet of the water-cooled heat exchanger 3 is connected to a water tank 5 .

Wherein, the quantity and arrangement of the semiconductor components and the semiconductor refrigerating sheets are selected according to the maximum cooling and heating power of the air conditioner and the power of the thermoelectric refrigerating sheets. In this embodiment, the semiconductor components are preferably 3 groups, and each group of semiconductor components is preferably composed of 4 Two vertically arranged semiconductor refrigerating sheets are formed, as shown in Figure 2; the model of the semiconductor refrigerating sheet is preferably TEC1-12706, and each group of semiconductor components is independently driven and controlled, and the semiconductor refrigerating sheets are evenly arranged according to geometric characteristics; the water-cooled type The heat exchanger 3 is preferably a coil heat exchanger.

In order to reduce the thermal resistance between the contact surfaces, the contact surfaces of the semiconductor thermopile 2 and the steel plate 1 and the water-cooled heat exchanger 3 are coated with heat-conducting silicon grease to enhance heat conduction and reduce contact thermal resistance. The steel plate 1 is a heat conducting plate, which performs radiation heat exchange and convective heat exchange with the indoor; the water-cooled heat exchanger 3 performs convective heat exchange with the outdoor air. A heat insulating material 6 is arranged in the gap between the semiconductor thermopile 2 and the steel plate 1 and the water-cooled heat exchanger 3 to form heat insulation between the steel plate 1 and the water-cooled heat exchanger 3 layer. The thermal insulation material 6 can adopt airgel viscous rigid plate thermal insulation material, Follers foamed rubber and plastic thermal insulation material, foamed concrete or glass fiber.

The working method of the present invention is as follows: firstly, the photovoltaic module 9 (also called a solar panel) converts solar energy into electric energy and stores it in the storage battery pack 11, and the controller 10 keeps the photovoltaic module 9 near the maximum power point of power generation to obtain the highest efficiency. The storage battery 11 can store excess electric energy and supply power to two parts. The one is to provide direct current for the semiconductor thermopile 2. After the semiconductor thermopile 2 obtains the direct current, one end is a cold end and the other end is a hot end to change the surface temperature of the steel plate; The indoor surface performs radiation heat exchange with other visible surfaces in the room, and conducts convective heat exchange with the indoor air. In different working modes, the indoor temperature can be raised or lowered; the second is to provide electric energy for the water pump, and the inverter 12 can convert The direct current in the battery pack 11 provides alternating current to the water pump 4, and the water pump 4 provides power for the water flow, and the water flows into the water-cooled heat exchanger 3 through the pipeline 7, and each interface of the pipeline 7 can be sealed with polyurethane adhesive sealant.

The air-conditioning assembly of the present invention has two working modes. By changing the direction of the current connected to the semiconductor thermopile, the cold end and the hot end of the thermopile are changed, and the cooling and heating modes are switched. In cooling mode, close switch one 13 and open switch two 14. First, 3 groups of 12 semiconductor cooling chips are connected to the DC power supply. The end of the semiconductor thermopile 2 connected to the steel plate 1 is the cold end, so that the temperature of the steel plate 1 is reduced to 17~ In the range of 20°C, the steel plate (that is, the heat conduction plate) faces the indoor surface to conduct radiation heat exchange with other visible surfaces in the room, and conduct convective heat exchange with the indoor air to achieve the purpose of cooling the air and indoor objects. When the indoor personnel changes, that is When the cooling load changes, the surface temperature of the heat conduction plate can be adjusted by controlling the number of semiconductor refrigeration sheets. The hot end of the semiconductor thermopile is connected to the water-cooled heat exchanger 3 plates, and the water in the water-cooled heat exchanger takes away the heat from the hot end. , reduce the temperature of the hot end, improve the cooling efficiency of the semiconductor thermopile 2, the water becomes hot water and flows into the water tank 5 from the outlet of the water-cooled heat exchanger to be used as domestic hot water, and at the same time achieve the purpose of preheating domestic hot water and recovering heat. Water tank 5 is equivalent to a storage tank of domestic hot water. In the heating mode, close the switch 14 and open the switch 13. At this time, the current flowing into the semiconductor thermopile 2 is reversed, and the cold and hot ends of the semiconductor thermopile 2 also change. The original cold end becomes the hot end, and the original hot end becomes As the cold end, select the middle group of 4 semiconductor refrigerating sheets to connect to the DC power supply. At this time, the end connected to the steel plate 1 is the hot end, so that the temperature of the steel plate is heated to the range of 40-100 ° C. The steel plate (that is, the heat conduction plate) faces the The indoor surface conducts radiative heat exchange with other visible surfaces in the room, and conducts convective heat exchange with the indoor air to achieve the purpose of heating the air and indoor objects. When the indoor personnel changes, that is, the heat load changes, it can be controlled by controlling the current size or the semiconductor refrigeration sheet The working quantity is used to adjust the surface temperature of the heat conduction plate. The cold end of the semiconductor thermopile is connected to the water-cooled heat exchanger 3 plates. The temperature of the water is higher than the ambient temperature, which can heat the cold end of the semiconductor thermopile and reduce the temperature difference between the cold and hot ends. Improve heating efficiency.

It is easy for those skilled in the art to understand that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, All should be included within the protection scope of the present invention.

Claims (10)

1. a semicoductor radiating aircondition for Driven by Solar Energy, is characterized in that, comprises air-condition assembly and solar components, wherein:

This air-condition assembly comprises steel plate (1), semiconductor thermoelectric module (2) and water-cooled heat exchanger (3), and described semiconductor thermoelectric module (2) is inlaid between described steel plate (1) and described water-cooled heat exchanger (3); Described semiconductor thermoelectric module (2) forms by organizing semiconductor subassembly more, wherein, often organizes semiconductor subassembly and is formed in parallel by multiple semiconductor chilling plate, and separate control between each group semiconductor subassembly;

This solar components comprises the photovoltaic module (9), controller (10), batteries (11), inverter (12) and the water pump (4) that are connected successively; Wherein, described photovoltaic module (9) converts solar energy into electrical energy and is stored in described batteries (11), and this batteries (11) provides electric energy for described semiconductor thermoelectric module (2) and described water pump (4); In addition, described water pump (4) is connected with the entrance of described water-cooled heat exchanger (3).

2. the semicoductor radiating aircondition of Driven by Solar Energy as claimed in claim 1, it is characterized in that, described semiconductor subassembly is preferably 3 groups, often organizes semiconductor subassembly and is preferably made up of 4 vertically disposed semiconductor chilling plates.

3. the semicoductor radiating aircondition of Driven by Solar Energy as claimed in claim 1 or 2, is characterized in that, described batteries (11) is supplied to described semiconductor thermoelectric module (2) by the DC current that wire is produced and uses; Described wire is provided with switch, by regulating described switch to control the direction of DC current.

4. the semicoductor radiating aircondition of Driven by Solar Energy as claimed in claim 3, is characterized in that, by regulating the working quantity of described semiconductor chilling plate to control the temperature of described semiconductor thermoelectric module (2); In cooling mode, described semiconductor chilling plate all participates in work; In a heating mode, described semiconductor chilling plate subparticipation work.

5. the semicoductor radiating aircondition of Driven by Solar Energy as claimed in claim 4, it is characterized in that, the DC current produced is produced alternating current by described inverter (12) and uses for described water pump (4) by described batteries (11).

6. the semicoductor radiating aircondition of the Driven by Solar Energy as described in claim 4 or 5, it is characterized in that, the contact surface of described semiconductor thermoelectric module (2) and described steel plate (1) and described water-cooled heat exchanger (3) is coated with heat-conducting silicone grease, to strengthen heat conduction, to reduce thermal contact resistance.

7. the semicoductor radiating aircondition of Driven by Solar Energy as claimed in claim 6, it is characterized in that, described steel plate (1) is heat-conducting plate, and radiation heat transfer and heat convection are carried out in itself and indoor; Described water-cooled heat exchanger (3) carries out heat convection with outdoor air.

8. the semicoductor radiating aircondition of Driven by Solar Energy as claimed in claim 7, it is characterized in that, this aircondition is also provided with the water tank (5) be connected with the outlet of described water-cooled heat exchanger (3).

9. the semicoductor radiating aircondition of Driven by Solar Energy as claimed in claim 7 or 8, it is characterized in that, heat-insulating material (6) is provided with, to form heat insulation layer between described steel plate (1) and described water-cooled heat exchanger (3) in space between described semiconductor thermoelectric module (2) and described steel plate (1) and described water-cooled heat exchanger (3).

10. the semicoductor radiating aircondition of Driven by Solar Energy as claimed in claim 9, it is characterized in that, described heat-insulating material (6) adopts the gluing hard plate-shaped heat-insulating material of airsetting, this foamed rubber-plastic heat insulation material of joy, foam concrete or glass fibre.