JPH0246858B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a system that applies the principle of a heat pump cycle to directly circulate a refrigerant through a heat collector to collect solar heat and atmospheric heat while evaporating the refrigerant.

Conventional technology Figures 2 to 5 show an example of a conventional heat pump cycle that has been put into practical use to collect solar heat and atmospheric heat by flowing refrigerant directly into a heat collector and evaporating the refrigerant. Conventionally, a flat heat collector 1 is supported by a support 3 on a wall 2 of a building, etc., and a heat exchange part 4 and a hot water storage tank 5 are installed on the ground. and were connected by a heat collection circuit 7 for the refrigerant 6. In that case, as shown in FIG. 4, the heat collector 1 is protected by a frame 11 on a pipe 10 having a thermostatic expansion valve 8 and heat collecting fins 9, and the heat collector 1 is parallel to the wall surface 2. It was fixed with the support 3 like this. As shown in FIG. 3, the system includes a heat collector 1, an accumulator 12, a compressor 13, a condenser 14 as a heat exchange section 4, a heat collection circuit 7 in which a thermostatic expansion valve 8 is connected, and the condenser 14, a hot water heating circuit 18 consisting of a heat exchanger 16, a pump 17, and a hot water storage tank 5. The heat collector 1 is generally installed on a well-ventilated roof, balcony, wall, etc. facing south.

Problems to be Solved by the Invention There have been cases where the heat collector 1 is installed on the wall of a house etc. from the viewpoint of harmony with the house, installation space, orientation, etc. In this case, depending on the relative position of the building and the heat collector 1, the heat collector 1 side may be on the leeward side of the building and become a stagnation area of the airflow, or the wall surface on which the heat collector 1 is installed is facing due south. If the corner area faces directly south without sunlight, it may not be possible to use it all day long because it receives solar radiation only in the morning or afternoon, or if the heat collector is installed on a south-facing wall, Even in the direction of the front wind, general support equipment is not strong enough to connect the wall and the heat collector, so it is not possible to maintain a large spatial distance. The amount of air passing through the heat collector 1 may decrease, resulting in a decline in heat collection performance, and the cold air generated by the heat collector 1 may affect the heat collector 1, causing hunting in the flow of refrigerant. Therefore, there is a problem that the risk of liquid returning to the compressor 13 increases and the reliability of the system components decreases.

Means for Solving the Problems The present invention solves the problems of the conventional art, and includes a flat plate type heat collector that is made substantially vertical and supported by a support near a corner formed by two walls of a building. The heat receiving surface of the flat heat collector and the corner of the building are opposed to each other, and the facing distance is in close contact or a certain distance is maintained between the heat receiving surface side of the flat heat collector and the corner of the building. The wall surface forming the wall has a certain angle.

Effect With the above configuration, assuming that the outside air is blowing from the front of the heat collector (arrow A in FIG. 1), the airflow is divided into two by the corner, but the airflow flows smoothly. If the outside air is blowing parallel to the heat collector (arrow B in Figure 1), the air that hits the wall will flow along the wall, forming an open state at a certain angle with the wall. The airflow passes through a certain heat collector, and when it passes a corner, the direction of the airflow changes and passes through the heat collector again. Even when the air is on the leeward side of a building (arrow C in Figure 1), it flows along the walls, so it passes through the heat collector by flowing along both walls. In other words, it is possible to prevent a decrease in refrigerant evaporation capacity in the heat collector without affecting the direction of the wind.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1, 6, and 7.
This will be explained using figures. A heat collector 1 that evaporates refrigerant using solar heat and atmospheric heat is erected approximately vertically, and a support 3' is installed near the corner P formed by two walls 2 of the building.
The heat receiving surface of the heat collector 1 and the corner P of the building are opposed to each other, and the opposing distances are in close contact or with a certain distance l, and the heat receiving surface side of the heat collector 1 and the corner P of the building are made to face each other. It has a constant angle θ with the wall surface 2 forming the corner P portion of the building. The heat collector 1, a heat exchange section 4 installed on the ground, and a hot water storage tank 5 are connected by a refrigerant heat collection pipe 7, and the heat collector 1
is protected by a frame 11 on a pipe 10 having a thermostatic expansion valve 8 and heat collecting fins 9. With the above configuration, when the outside air blows from the direction of arrow A in the front view of the heat collector 1 in FIG.
, the airflow flows smoothly along the wall 2. The first one where the direction of the outside air is parallel to the heat collector 1
When the air blows from the direction of arrow B in the figure, the air that hits the wall 2 flows along the wall 2, and the heat collector 1 is in an open state forming a constant angle θ with the wall 2.
When the airflow passes through the corner P, the direction of the airflow is changed and the airflow passes through the heat collector 1 again. Even if the building is downwind in the direction of arrow C in Figure 1, the building wall 2
Due to the nature of flowing along the air, the air flows along the wall surfaces 2 on both sides and passes through the heat collector 1. The refrigerant in the heat collector 1 evaporates by taking heat from the air and collects the heat. As an effect of this embodiment, the heat collector not only receives solar heat directly to the heat collection fins 9 but also collects sensible heat from the atmosphere, and the heat collection ability is improved when there is wind than when there is no wind. do. In particular, when installed in a building, the airflow is reduced because the building becomes an obstacle, but by installing it near the corner P, the influence of the direction of the wind is reduced, and the heat collection ability is not reduced. do not have. Refrigerant heat collection operation due to unstable airflow direction becomes more stable.

Effects of the Invention The present invention is effective against solar heat by installing a heat collector in a corner.If the wall of the building does not face south, it can be installed using a south-facing corner. becomes.

Wind flow can be utilized in all directions, regardless of the direction of the wind.

Since it is less affected by the direction of the wind, it is easier to obtain stable heat collection ability.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the heat collecting operation of a heat collector according to an embodiment of the present invention, FIG. 2 is an installation diagram of a conventional heat collector,
Figure 3 is a system diagram of heat collection method using refrigerant, Figure 4
Fig. 5 is a diagram showing the configuration of a conventional heat collector, Fig. 5 is a diagram showing the heat collection operation of a conventional heat collector, Fig. 6 is an installation diagram of a heat collector according to an embodiment of the present invention, and Fig. 7 is the same. It is a block diagram of a heat collector. 1... Heat collector, 2... Wall surface, 3... Support, P
……corner.

Claims (1)

[Claims] 1. A flat plate type heat collector that collects solar heat and atmospheric heat while evaporating refrigerant is held approximately vertically and supported with a support near a corner formed by two walls of a building, and the heat receiving of the flat plate type heat collector is The surface and the corner of the building face each other, and the opposing distances are in close contact or with a certain distance between them, and the heat receiving surface of the flat plate type heat collector and the wall surface forming the corner part of the building are at a certain distance. An angled wall-mounted heat collection device.