KR102560227B1 - Cold/Hot Combined Production Unit - Google Patents

Abstract

The present invention relates to a cold/heat combined production unit for simultaneously producing cold heat and warm heat. a radiant cooling layer that absorbs and radiates infrared rays in a sky window area in the cold/heat complex production unit according to an embodiment of the present invention to produce cold/heat; a first flow path formed below the radiant cooling layer and receiving the cold heat produced in the radiant cooling layer as the fluid flows; a heat collecting layer formed on top of the radiant cooling layer and generating heat by absorbing sunlight; and a second flow path formed on the heat collecting layer and receiving the heat generated in the heat collecting layer as the fluid flows.

Description

Cold/Hot Combined Production Unit}

The present invention relates to a heat and cold complex production unit, and relates to a heat and cold complex production unit capable of simultaneously or selectively producing cold heat and heat.

Humans need heat and cold heat to survive, and various devices capable of producing the necessary heat and cold heat have been developed. There is a heat pump or a device that generates heat by burning fuel as a heat generating unit, and a device using a phase change of a refrigerant or an electromagnetic refrigerator using a Peltier effect as a cold heat generating unit. The aforementioned hot heat production units or cold heat production units directly or indirectly consume energy by using fossil fuels, and thus, have a problem of burdening the environment.

As an alternative to this problem, research and development of a unit generating heat (heat having a temperature higher than that of the atmosphere) using solar heat and dissemination of products are being actively conducted. However, there is a problem in that such a conventional thermal heat production unit using solar heat cannot produce cold heat (heat having a temperature lower than that of the air) without an additional configuration such as a heat pump.

Pre-Registered Patent No. 10-2254241 proposes a "hybrid heating and cooling system using solar and geothermal heat with a heat storage tank package for variable heating and cooling". The pre-registered patent discloses a configuration in which cooling is possible while utilizing hot heat using a solar collector, and specifically, cold heat is used using geothermal heat, a heat pump, and separately configured upper and lower heat storage tanks. That is, in the prior registration patent, a unit for producing heat using solar heat is combined with another cold heat production unit, and there are problems such as that the device is complicated and requires an additional large space.

Accordingly, the inventors of the present invention intend to propose a cold/heat combined production unit capable of simultaneously or selectively producing hot heat and cold heat without using a heat pump or geothermal heat.

Registered Patent No. 10-2254241

One object of the present invention is to provide a cold/heat combined production unit capable of simultaneously or selectively producing hot heat and cold heat without using a heat pump or geothermal heat.

Meanwhile, other unspecified objects of the present invention will be additionally considered within the scope that can be easily inferred from the following detailed description and effects thereof.

In order to achieve the object described above, this patent document proposes the following embodiments.

A heat and cold complex production unit according to an embodiment of the present invention is for simultaneously producing cold heat and heat, and includes a radiant cooling layer for producing cold heat by absorbing and emitting infrared rays in a sky window area; a first flow path formed below the radiant cooling layer and receiving the cold heat produced in the radiant cooling layer as the fluid flows; a heat collecting layer formed on top of the radiant cooling layer and generating heat by absorbing sunlight; and a second flow path formed on the heat collecting layer and receiving the heat generated in the heat collecting layer while the fluid flows therethrough.

In one embodiment, it may be characterized in that it further comprises a heat insulating layer formed between the radiation cooling layer and the heat collection layer, to block the transfer of heat.

In one embodiment, the heat collecting layer absorbs visible light but transmits infrared light, so that heat is produced by absorbing visible light and transmits infrared radiation emitted from the radiation cooling layer to escape.

In one embodiment, the heat collecting layer may include a first heat collecting layer selected from the group consisting of polyethylene, KCl, NaCl, and ZnSe; and a second heat collecting layer formed by being coated on the first heat collecting layer and selected from the group consisting of CuO, PbS, carbon black, and graphite.

In an embodiment, the radiation cooling layer may include a first radiation cooling layer formed of silver or aluminum; and a second radiation layer formed on the first radiation cooling layer and formed by dispersing radiation particles formed of at least one selected from the group consisting of Al ₂ O ₃ , TiO ₂ and SiO ₂ on a matrix.

In one embodiment, the radiation cooling layer may be formed by dispersing reflective particles formed of silver or aluminum and radiation particles formed of at least one selected from the group consisting of Al ₂ O ₃ , TiO ₂ and SiO ₂ on a matrix.

In one embodiment, the first flow path may be characterized in that it is formed by the light transmission layer located on the upper side and the heat collecting layer located on the lower side.

According to another embodiment of the present invention, a housing for selectively producing cold and warm heat or for controlling the temperature of the produced heat, into which fluid flows; a heat generating wing installed in the housing and having one side and a bowel; and a rotation module for rotating the heat generating blades, wherein a heat collecting layer for absorbing sunlight and generating heat is formed on one side of the heat generating blades, and a radiant cooling layer for generating cool heat by absorbing and emitting infrared rays in a sky window region is formed on the rear side of the heat generating blades.

In another embodiment, in the heat generating mode, the rotating module rotates the heat generating blades so that the heat collecting layer faces upward so that the heat collecting layer absorbs sunlight to produce heat and transfers heat to the fluid, and in the cold heat generating mode, the rotating module rotates the heat generating wings to make the radiant cooling layer face upward to reflect sunlight and absorb and radiate heat to produce cold heat and transfer cold heat to the fluid.

In another embodiment, there are a plurality of heat generating blades, and in the temperature control mode, some of the heat generating blades are rotated so that the heat collection layer faces upward, and other heat producing blades are rotated so that the radiant cooling layer faces upward.

A cold/heat complex production unit according to an embodiment of the present invention is for simultaneously producing cold heat and warm heat, and includes a radiant cooling layer, a heat insulating layer positioned on the radiant cooling layer, and a heat collecting layer positioned on the heat insulating layer. The radiant cooling layer reflects most of the incident solar energy and radiates the retained heat to cool the temperature of the fluid passing below to lower than the inflow temperature to produce cold heat. The heat collection layer absorbs visible light to heat the temperature of the fluid passing upward to a higher temperature than the inlet temperature to produce heat, and at the same time transmits infrared rays emitted from the radiant cooling layer so that the radiant cooling layer can produce cold heat. Meanwhile, the heat insulating layer prevents heat from the heat collecting layer from being conducted to the radiant cooling layer. Accordingly, the hot/cold complex production unit according to an embodiment of the present invention may simultaneously produce cold heat and warm heat.

A cold/heat complex production unit according to another embodiment of the present invention is for selectively producing cold heat and warm heat or for controlling the temperature of the produced heat, and includes heat generating blades having a heat collecting layer formed on one surface and a radiant cooling layer formed on the rear surface of the heat collecting layer, and is provided with a rotation module for rotating the heat generating blades. That is, when heat is needed, the heat collection layer is directed toward the sun, and when cold heat is needed, the rotation module rotates the heat producing blades so that the radiant cooling layer is directed toward the sun.

On the other hand, even if the effects are not explicitly mentioned here, it is added that the effects described in the following specification expected by the technical features of the present invention and their provisional effects are treated as described in the specification of the present invention.

1 is a schematic perspective view of a cold/heat complex production unit according to a first embodiment of the present invention.
2 is a schematic cross-sectional view of a cold/heat complex production unit according to a first embodiment of the present invention.
3 is a thermal flow analysis result obtained by simulating a case in which sunlight is incident on the cold/heat complex production unit according to the first embodiment of the present invention.
4 is a schematic perspective perspective view of a cold/hot heat complex production unit according to a second embodiment of the present invention.
5 is a schematic perspective view of a heat production mode of a cold/heat combined production unit according to a second embodiment of the present invention.
6 is a schematic perspective view of a cold-heat production mode of a cold-heat complex production unit according to a second embodiment of the present invention.
7 is a schematic perspective view of a temperature control mode of a cold/heat complex production unit according to a second embodiment of the present invention.
It is revealed that the accompanying drawings are illustrated as references for understanding the technical idea of the present invention, and thereby the scope of the present invention is not limited.

Hereinafter, with reference to the drawings, look at the configuration of the present invention guided by various embodiments of the present invention and the effects resulting from the configuration. In the description of the present invention, if it is determined that a related known function may unnecessarily obscure the subject matter of the present invention as an obvious matter to those skilled in the art, the detailed description thereof will be omitted.

1 is a schematic perspective view of a heat and cold complex production unit according to a first embodiment of the present invention, and FIG. 2 is a schematic cross-sectional view of a heat and cold complex production unit according to a first embodiment of the present invention.

Hereinafter, with reference to FIGS. 1 and 2 , the heat/cold complex production unit 100 according to the first embodiment of the present invention will be described.

By using the cold/heat combined production unit 100 of the first embodiment, cold heat and warm heat can be simultaneously produced without an additional configuration such as a separate heat pump. The heat/cold complex production unit 100 of the first embodiment described below may produce both cold heat and heat under a condition where sunlight exists, and produce cold heat under a condition where sunlight does not exist. In this patent document, to produce cold heat means to produce a fluid with a temperature lower than the temperature of the atmosphere (or the inflowing fluid), and to produce heat means to produce a fluid with a temperature higher than the temperature of the atmosphere (or the inflowing fluid).

The cold/heat complex production unit 100 of the first embodiment includes housings 10 and 40 , a radiant cooling layer 20 and a heat collecting layer 30 positioned within the housings 10 and 40 .

The housings 10 and 40 include a first housing 10 located at the bottom and a second housing 40 located at the top, and the second housing 40 is capable of transmitting visible and ultraviolet rays. It is preferable to use a material. The second housing 40 may also be defined as a light transmission layer. An LDPE film may be used as the second housing 40 .

The first housing 10 and the radiation cooling layer 20 form a first flow path 61 . A fluid flows into the first flow path 61 . Water or air may be used as the fluid, but the present invention is not limited thereto.

The radiation cooling layer 2( ) absorbs and radiates infrared rays in a sky window region to produce cool heat. In order to produce cold heat, most of the light coming from the sunlight during the day must be reflected, and furthermore, the radiant heat energy it has must be radiated. To this end, the radiation cooling layer 20 includes a component that reflects sunlight and a component that absorbs and emits radiant heat. According to the Planck distribution, at room temperature (about 300K), heat can be emitted at the maximum in the wavelength range of 6 to 20 μm. On the other hand, in the case of the earth, the region where the atmosphere transmits the earth's radiant energy without absorbing it means a region where the window region of the atmosphere has a wavelength of 8 to 13 μm. Therefore, the radiative cooling layer reflects sunlight with a wavelength of 0.3 to 2.5 μm and absorbs and emits radiation with a wavelength of 8 to 13 μm (mid-infrared rays) that can escape out of space, thereby realizing a theoretical cooling performance of 158 W / m ³ (@ 300K) without consuming external energy (eg, electricity, etc.).

The radiation cooling layer 20 includes a component for reflecting sunlight and a component for absorbing and emitting radiant heat. For this purpose, two types of radiation cooling layers 20 are proposed. The first is a method of configuring two layers of a reflection layer (first radiation cooling layer) and a radiation layer (second radiation cooling layer), and the second method is to form a single layer by dispersing reflection particles and radiation particles in a matrix. In the first method, the two-layer method, a first radiation-cooling layer is formed of silver or aluminum on a substrate, and _a second radiation-cooling layer is formed on top of the radiation-cooling layer (which _{defines the direction in which the sun is located as an upper part). Radiation particles formed of at least one selected from the group consisting of TiO 2 and} SiO ₂ are dispersed on a matrix to form a second radiation-cooling layer. A polymer may be used as the matrix, for example, DPHA (DiPentaerythritol HexaAcrylate), PTFE (Polytetrafluoroethylene), PUA (Poly urethane acrylate), ETFE (Ethylene Tetra Fluoro Ethylene), PVDF (Polyvinylidene fluoride), PDMA (Polydimethylsiloxane), Acrylic polymer, Polyester polymer, Polyurethane polymer The matrix may be formed using at least one of a binder. In the second radiative cooling layer, the volume ratio of the radiant particles to the binder may be 0.5 to 3:1. The second method is to form by dispersing reflective particles formed of silver or aluminum and radiation particles formed of at least one selected from the group consisting of Al ₂ O ₃ , TiO ₂ and SiO ₂ in a matrix on a substrate. As the matrix, the same binder used in the first method can be used.

A first flow path 61 is positioned below the radiation cooling layer 20 . The fluid flowing through the first flow path 61 receives the cold heat produced in the radiant cooling layer 20 (see FIG. 3). Receiving cold heat means that the heat possessed by the fluid moves to the radiant cooling layer 20 and is radiated in the form of radiant heat.

The heat collection layer 30 is located on top of the radiation cooling layer 20 . However, it is preferable that the heat insulating layer 50 be positioned between the radiation cooling layer 20 and the heat collection layer 30 to prevent the heat generated in the heat collection layer 30 from being transferred to the radiation cooling layer 20 . Accordingly, the layers are formed in the order of the radiation cooling layer 20, the heat insulating layer 50, and the heat collection layer 30. A heat insulating material layer, a vacuum layer, or an air layer may be used as the heat insulating layer 50, but the present invention is not limited thereto.

The heat collection layer 30 absorbs radiant sunlight (particularly, visible light) to produce heat. At this time, the heat collecting layer 30 is configured to absorb visible light and transmit infrared rays (in particular, mid-infrared rays having a wavelength of 8 to 13 μm). That is, the heat collecting layer 30 absorbs visible light to produce warm heat, but transmits infrared rays emitted from the radiant cooling layer 20 positioned below, thereby preventing the radiant cooling layer 20 from producing cold heat. The heat collecting layer 30 includes a substrate (first heat collecting layer) and a coating layer formed by being coated on the substrate (second heat collecting layer). The first heat collection layer is formed of any one selected from the group consisting of polyethylene, KCl, NaCl, and ZnSe having high transmittance to infrared rays (particularly, mid-infrared rays having a wavelength of 8 to 13 μm). The second heat collecting layer is formed by being coated on the first heat collecting layer, and may be formed by applying black paint or coating at least one selected from the group consisting of CuO, PbS, carbon black, and graphite to improve heat collecting performance.

A second flow path 62 is positioned above the heat collecting layer 30 . The second passage 62 may be formed by the heat collection layer 30 and the second housing (or light transmission layer) 40 . Like the first flow path 61, a fluid flows into the second flow path 62. The fluid flowing into the second flow path 62 receives the heat generated in the heat collecting layer 30 (see FIG. 3).

4 is a schematic perspective view of a heat and cold complex production unit according to a second embodiment of the present invention, FIG. 5 is a schematic perspective view of a heat production mode of the heat and cold complex production unit according to a second embodiment of the present invention, FIG. 6 is a schematic perspective view of a cold heat production mode of the heat and cold complex production unit according to a second embodiment of the present invention, and FIG. 7 is a temperature control of the heat and cold complex production unit according to the second embodiment of the present invention. This is a schematic perspective view of the mode.

Hereinafter, with reference to FIGS. 4 to 7 , a heat/cold complex production unit 200 according to a second embodiment of the present invention will be described. However, in the description of the heat/cold complex production unit 200 according to the second embodiment, the same configuration as the heat/cold complex production unit 100 according to the first embodiment will be omitted.

The heat/cold complex production unit 200 according to the second embodiment may selectively produce either cold heat or hot heat or control the temperature of the produced heat.

To this end, the heat and cold complex production unit 200 according to the second embodiment is installed in the housings 10 and 40 through which fluid flows into the housings 10 and 40, and has one side and a bowel movement. It includes a heat generating wing (W) and a rotation module 70 that rotates the heat generating wing (W). A heat collection layer 30 that absorbs sunlight to produce heat is formed on one side of the heat generating wing W, and a radiant cooling layer 20 that produces cool heat by absorbing and emitting infrared rays in the sky window region is formed on the rear side of the heat collecting layer 20. The same configuration as in the first embodiment can be used for the radiant cooling layer 20 and the heat collection layer 30, and cold heat and warm heat are produced respectively according to the same principle. The generated cold or warm heat is transferred to the fluid flowing through the flow path 60 . For reference, when the radiation cooling layer 20 is composed of a reflection layer and a radiation layer, it is preferable that the reflection layer is disposed outside. On the other hand, airtight additional wings (w1, w2) are formed on both sides of the heat generating wing (W), so that the airtightness of the fluid can be increased. That is, the fluid flows into the flow path at the bottom of the heat generating wing W formed by the airtight additional wings w1 and w2.

The difference between the heat and cold complex production unit 200 of the second embodiment from the heat and cold complex production unit 200 of the first embodiment is that the heat generating blades W can be rotated by the rotation module 70 . Through this, the heat/cold complex production unit 200 according to the second embodiment may be configured in a heat production mode, a cold heat production mode, or a temperature control mode.

5 is a schematic perspective view of a heat production mode of a cold/heat combined production unit according to a second embodiment of the present invention. In the heat production mode, the rotation module 70 rotates the heat generating wings W so that the heat collecting layer 30 faces upward (toward the sun). Accordingly, the heat collecting layer 30 generates heat from incident sunlight and transfers the generated heat to the fluid.

6 is a schematic perspective view of a cold-heat production mode of a cold-heat combined production unit according to a second embodiment of the present invention. In the cold heat production mode, the rotation module 70 rotates the heat generating wings W so that the radiant cooling layer 20 faces upward (toward the sun). Accordingly, the radiant cooling layer 20 reflects incident sunlight, absorbs and radiates radiant heat to produce cool heat, and transfers the produced cold heat to the fluid.

7 is a schematic perspective view of a temperature control mode of a cold/heat complex production unit according to a second embodiment of the present invention. As shown in FIG. 7 , the cold/heat complex production unit 200 according to the second embodiment is composed of a plurality of heat generating blades W, and some of the heat generating blades W are rotated so that the heat collecting layer 30 faces upward, and the remaining heat producing blades W are rotated so that the radiant cooling layer 20 faces upward. In the temperature control mode, by controlling the number of radiant cooling layers 20 facing upwards and the number of heat collecting layers 30 facing upwards, heat having a temperature intermediate between cold heat and warm heat can be produced and transferred to the fluid.

The protection scope of the present invention is not limited to the description and expression of the embodiments explicitly described above. In addition, it is added once again that the scope of protection of the present invention cannot be limited due to obvious changes or substitutions in the technical field to which the present invention belongs.

Claims (10)

As a combined heat and cold production unit for producing cold and hot heat at the same time:
a radiation cooling layer that absorbs and radiates infrared rays in a sky window region to produce cool heat;
a first flow path formed below the radiant cooling layer and receiving the cold heat produced in the radiant cooling layer as the fluid flows;
a heat collecting layer formed on top of the radiant cooling layer and generating heat by absorbing sunlight; and
A second flow path formed on the heat collecting layer and receiving heat generated in the heat collecting layer while the fluid flows therethrough;
The cold/hot/heat complex production unit, characterized in that the second passage is formed by a light transmission layer located above the heat collection layer and the heat collection layer located below. According to claim 1,
The heat and cold complex production unit further comprising a heat insulation layer formed between the radiant cooling layer and the heat collection layer and blocking heat transfer. According to claim 1,
The heat collection layer absorbs visible light and transmits infrared light, thereby absorbing visible light to produce heat and transmitting infrared rays emitted from the radiation cooling layer to escape. According to claim 3,
The heat collection layer,
A first heat collection layer that is at least one selected from the group consisting of polyethylene, KCl, NaCl, and ZnSe; and
and a second heat collection layer formed by coating on the first heat collection layer and formed of at least one selected from the group consisting of CuO, PbS, carbon black, and graphite. According to claim 1,
The radiation cooling layer,
a first radiation cooling layer formed of silver or aluminum; and
A second radiant layer formed on the first radiant cooling layer and formed by dispersing radiant particles formed of at least one selected from the group consisting of Al ₂ O ₃ , TiO ₂ and SiO ₂ on a matrix; Heat and cold complex production unit comprising a. According to claim 1,
The radiant cooling layer is formed by dispersing reflective particles formed of silver or aluminum and radiant particles formed of at least one selected from the group consisting of Al ₂ O ₃ , TiO ₂ and SiO ₂ on a matrix. Heating and cooling complex production unit, characterized in that. delete As a cold/heat combined production unit for selectively producing cold/warm heat or controlling the temperature of generated heat:
a housing through which fluid flows;
a heat generating wing installed in the housing and having one side and a bowel; and
A rotation module for rotating the heat generating blades; includes,
A heat collection layer for absorbing sunlight to produce heat is formed on one side of the heat generating wing, and a radiant cooling layer for producing cold heat by absorbing and radiating infrared rays in a sky window region is formed on the back side. Cold and heat complex production unit, characterized in that. According to claim 8,
In the heat production mode, the rotation module rotates the heat generating blades so that the heat collecting layer faces upward, so that the heat collecting layer absorbs sunlight to generate heat and transfer the heat to the fluid;
In the cold heat production mode, the rotation module rotates the heat generating blades so that the radiant cooling layer faces upward to reflect the sunlight, absorb and radiate heat to produce cold heat, and transfer cold heat to the fluid. Cold and hot complex production unit, characterized in that. According to claim 8,
The heat generating blades are plural, and in the temperature control mode, some heat generating blades rotate so that the heat collecting layer faces upward, and other heat producing blades rotate so that the radiant cooling layer faces upward. Cold and hot complex production unit.