JPS5828951A - Heat accumulating equipment utilizing solar heat - Google Patents

Abstract

PURPOSE:To enable to efficiently separate and collect the water with the temperature above the predetermined one by utilizing the difference of specific gravity by a structure wherein a horizontal floating plate, the specific gravity of which is larger than that of the hot water to be collected and at the same time smaller than that of the cold water to be supplied in the system of the device, is arranged in the passage for circulating liquid. CONSTITUTION:A hot water collecting unit 1 consists of the horizontal floating plate 4 installed within a cylindrical vessel 3. The horizontal floating plate 4 floats at the boundary surface of the two liquids, one of which is the cold water lying below a plate 4 and the other of which is the hot water lying above the plate 4 by employing the specific gravity of the plate 4, which lies within the range of specific gravity smaller than that of the cold water lying below the plate 4 and as well as larger than that of the hot water lying above the plate 4. Furthermore, by regulating the specific gravity of the horizontal floating plate 4 so as to be equal to the specific gravity of the water with desired temperature, the hot water with desired temperature is stored at all times above the horizontal floating plate 4 through a piping 18 regardless of the fluctuation of the heat quantity received at a solar heat collector 2. In addition, when hot water is stored so much above the plate 4 as to let the plate 4 down till to attain to the bottom of the vessel 3, valves 13 and 15 are open and at the same time a valve 16 is closed, resulting in sending the hot water stored above the plate 4 into a heat accumulator 12.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that effectively collects only hot water of a predetermined temperature or higher from a solar heat collector and stores the water.

Generally, in order to separate liquids with different specific gravities, a method is commonly used in which liquid phases are allowed to stand still to form liquid layers with different specific gravities.

However, when the liquid in the system is circulating or flowing, mixing, convection, disturbance, etc. occur, so it has been extremely difficult to separate and collect liquids based on their specific gravity, where the difference in specific gravity is minute.

The purpose of the present invention is to provide a device that can be placed in the path of such a circulating liquid system and can separate and collect liquid very efficiently based on the difference in specific gravity. It is an object of the present invention to provide a device that effectively stores solar heat by separating and collecting hot water at a predetermined temperature or higher from a system where the temperature changes and it is difficult to separate the specific gravity of the hot water.

The device of the present invention will be specifically explained according to the embodiments of the drawings. 5 As shown in FIG. A cylindrical container 3 with a horizontal float plate 4 having a small specific gravity slidably mounted on the top r, a solar heat collector 2, a heat storage tank 12, and hot water generated by the solar heat collector 2 are placed in the container 3. Hot water piping 18 for guiding above the horizontal float plate 4
, cold water piping 11 for guiding cold water to the solar heat collector 2 from below the horizontal float plate 4 of the container 3, and heat storage from the container wall at the position where the horizontal float plate 4 floats to the top or above this. A hot water pipe 19 for supplying hot water to the tank 12, a water supply pipe 14 for supplying cold water below the horizontal float plate 4 of the container 3, and the cold water pipe 11 described above.
．． It consists of a control device 17 for controlling the opening and closing of pulps 16, 13 and 15 installed in the hot water supply pipe 19 and the water supply pipe 14, respectively.

The hot water sampling section 1 is a cylindrical container 3 whose inner diameter does not change in the vertical direction.
A horizontal float plate 4 is installed inside the vessel, and the diameter of this horizontal float plate 4 is slightly smaller than the inner diameter of the container 3, so that it can slide up and down along the inner wall surface of the container 3 while remaining horizontal. be.

In order to maintain this levelness and reduce mixing of liquid above and below the horizontal float plate, the distance between the inner wall surface of the container 3 and the horizontal float plate 4 is made as small as possible to the extent that no sliding resistance occurs. Preferably, the periphery of the horizontal float plate 4 is provided with fins 5 that protrude upward and downward to maintain the horizontal position and prevent mixing of cold and hot water. This horizontal float plate 4
Because it has a lower specific gravity than the cold water at the bottom and a higher specific gravity than the warm water at the top, it floats at the interface between the two liquids. A horizontal float plate 40 has a weight receiver 6 on which a weight for adjusting the specific gravity can be attached and detached as appropriate.
attached to the bottom. It is convenient to store small lead balls in the weight receiver 6 and adjust the specific gravity according to the number of small lead balls. By adjusting the specific gravity of the horizontal float plate 4 with this weight, the horizontal float plate 4 can be made of a lightweight foam material such as styrene foam treated to be waterproof.

The piping system in which this container 3 and the solar heat collector 2 are arranged is maintained at a predetermined pressure by an expansion tank 8. This piping system consists of a hot water pipe 1B in which hot water generated by the solar heat collector 2 is guided to the upper part of the horizontal float plate 4 of the container 3, and a container 3.
The cold water pipe 11 is configured such that the cold water below the horizontal float plate is guided to the solar heat collector 2, forming a hot water supply system. For example, hot water at 60°C has a density of approximately 0.9.
Therefore, if the specific gravity of the horizontal float plate 4 is set to about 0.9B5, when hot water of 60°C or higher is led to the upper part of the horizontal float plate 4, the horizontal float plate 4 will lower and store hot water. Therefore, unless the hot water temperature reaches 60° C., the horizontal float plate 4 will be present on the ceiling surface of the container 3. Therefore, if the specific gravity of the horizontal float plate 4 is adjusted to the specific gravity corresponding to the desired temperature, even if the amount of heat received by the solar heat collector 2 fluctuates, hot water at the desired temperature or higher will always flow to the horizontal float plate. Hot water will be stored above No. 4.

The hot water at a predetermined temperature above the horizontal float plate 4 is supplied to the nokurupu 1.
Hot water is sent to the heat storage tank 12 through a hot water supply pipe 19 with a hot water pipe 5 interposed therebetween. The connection position of the hot water supply pipe 19 to the container 3 is a position above which the horizontal float plate 4 floats to the top. Chilled water is introduced from the water supply pipe 14 through the pulp 15 toward the lower part of the horizontal float plate 4 of the container 3, and is introduced into the heat collector 2 through the cold water pipe 11 with the pulp 16 interposed therein.
sent to. Reference numeral 17 indicates a control device that controls the opening and closing of each barfu, and the pulp 16 is opened during heat collection.

Pulps 13 and 15 are controlled to be closed. Hot water at a predetermined temperature accumulates at the top of the horizontal float plate 4, and the horizontal float plate 4 descends until it reaches the bottom of the container 3. When it reaches the bottom of the container 3, the pulps 15 and 15 are opened, and the pulp 16 is closed, and the heat storage tank 12 is heated to a predetermined temperature. of hot water is pumped in. This pulp opening/closing control can be automated by a sensor that detects the position of the horizontal float 4; by performing such pulp control, only hot water whose temperature is above a predetermined temperature can be stored in the heat storage tank 12. At this time, as described above, by adjusting the weight of the weight receiver 6 attached to the horizontal float plate 4, the temperature of the hot water fed into the heat storage tank 12 can be adjusted as desired.

Claims (1)

[Scope of Claims] A companion cylindrical container 3 is provided with a horizontal float plate 4 having a specific gravity greater than the hot water to be collected and a specific gravity 1 smaller than the cold water supplied into the system so as to be slidable up and down. The solar heat collector 2 , the heat storage tank 12 , the hot water piping 18 for guiding the hot water generated in the solar heat collector 2 above the horizontal float plate 4 of the container 3 , and the hot water pipe 18 above the horizontal float plate 4 of the container 3 A cold water pipe 11 for guiding cold water to the solar heat collector 2 from below, and a hot water pipe for supplying hot water to the heat storage tank 12 from the container wall at the position where the horizontal float plate 4 is floating at the top or at a position above this. 19, a water supply pipe 14 for supplying cold water below the horizontal float plate 4 of the container 3, a cold water pipe 11, a hot water supply pipe 19, and a water supply pipe 1 of the foundry.
A solar heat storage device consisting of valves 16 and 13 respectively installed in 4 and a control device 17 for controlling the opening and closing of 15.