JPS5854602Y2 - Water intake mechanism - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water intake mechanism, which includes a water storage tank for storing liquid inside, a hollow cylindrical body provided with a water intake at the bottom and erected in the water storage tank, and the cylindrical body. It consists of a notch that communicates with the inside of the cylindrical body and is sequentially formed from the upper part to the lower part of the cylinder, and a shutter member that opens and closes the notch as the liquid is displaced. By sequentially operating the shutter member from the notch to the lower notch to release the liquid, a relatively large portion of the liquid stored in the premises can be taken in at all times, starting with the liquid in the upper part. The purpose is to provide an intake mechanism that allows water to be extracted from the upper layer, which is at high temperature, to the outside.

Conventionally, as shown in FIG. 1, a solar water heater has a connecting pipe 2 attached to the lower part of a hot water tank 1, a solar panel part 3 formed at a predetermined part of the connecting pipe 2, and a water supply part to the hot water tank 1. 4 is provided in the lower part of the hot water storage tank 1, and a hot water take-out part 5 from the hot water storage tank 1 is provided in the upper part of the hot water storage tank 1.

Such solar water heaters supply water from the water supply section, and the water heated by the solar panel section rises by convection and accumulates in the upper part of the hot water tank.

Then, the low-temperature water in the lower part of the hot water tank enters the solar panel and is warmed, and as this process is repeated, the temperature of the water in the hot water tank increases.

However, even though the water is now hot, the temperature of the water in the hot water storage tank is higher in the upper layer and lower in the lower layer.

Therefore, only relatively high-temperature water can be taken out from the hot water take-out part attached to the top of the hot water storage tank, but if the water level drops below this hot water take-out part, hot water cannot be taken out, so the amount of hot water used is relatively small, so it is continuous. To use,
Water must always be supplied in proportion to the amount used.

However, in the summer when there is a lot of solar radiation, water can be warmed up in a short time, but in the winter when there is little solar radiation, it is difficult for water to warm up.
A solar water heater with such a configuration cannot be said to be very good.

Therefore, as shown in FIG. 2, a connecting pipe 7 is attached to the lower part of the hot water storage tank 6, a solar panel part 8 is formed at a predetermined part of the connecting pipe 7, and a hot water outlet part 9' is installed at the lower part of the hot water storage tank 6. A solar water heater has been proposed that is equipped with a pipe 9 that also serves as a water supply section 9''.

Solar water heaters with this structure can use a large amount of relatively high-temperature water as long as the water is not supplied until the hot water stored in the hot water tank is used up. Since hot water is heated from the lower part of the tank where the temperature is relatively low, the hot water in the upper part, which is relatively hot, remains in the tank, which has the disadvantage of inefficient use of hot water. be.

The present invention eliminates the above drawbacks, and examples thereof will be described below.

FIG. 3 is an explanatory diagram of the entire solar water heater equipped with the water intake mechanism according to the present invention.

In the figure, 20 is a hot water storage tank, 21 is a connecting pipe attached to the lower part of the hot water storage tank 20, and a solar panel section 22 is formed at a predetermined portion of this connecting pipe 21.

A water supply pipe 23 is connected to the lower part of the hot water tank 20, and a valve 24 is provided at a predetermined portion of the water supply pipe 23.

Reference numeral 25 denotes a cylinder placed upright inside the hot water storage tank 20, and the lower end of this cylinder 25 is placed outside the hot water storage tank 20 and serves as a hot water take-out portion 26.

The structure of this cylinder is, for example, as shown in FIG.
Several holes 32 and 33 are formed in the inner wall 30 and outer wall 31 of this double wall, respectively, at the same height positions, and holes 32 and 33 are formed in the inner wall 30' and outer wall 31' of the opposing surfaces.
．． Holes 32 and 33 are located at a different height from the height of position 33.
Several holes 32' and 33' are formed.

Furthermore, protrusions 34, 34' are formed on the inner wall at predetermined positions between the adjacent holes 32, 32'.

In the gap between the inner wall 30.30' and the outer wall 31, 3I', a shutter plate 36.36' having a length shorter than the length between the protrusions forming the float part 35.35' is arranged. , depending on the relationship between the buoyancy and weight of the shutter plate,
The upper end or lower end of the shutter plate is adapted to engage with the protrusion.

If the buoyancy of the shutter plate is greater than its weight and the upper end of the shutter plate is engaged with the protrusion, the hole formed in the inner wall and the hole formed in the outer wall are blocked by the shutter plate, and the shutter plate When the weight becomes greater than the buoyancy and the shutter plate begins to descend, and the lower end of the shutter plate comes to engage with the protrusion, the shutter plate 36.
Holes 37, 37' are formed in 36'.

Note that if a heat insulator is attached to the outer wall of the cylinder, the hot water inside the cylinder will not cool down easily.

Alternatively, as shown in FIG. 5, several holes 41, 41' are formed on two opposing sides 40, 40' of a cylinder having a substantially square cross section.
The shutter plate 43 has holes 41, 41' formed at different levels and a float part 42, 42' attached to the hole 41, 41'.
If the buoyancy of the float part is large, the hole is closed by the shutter plate, and if the buoyancy of the float part is small, the shutter plate rotates due to the weight of the shutter plate, etc., and the shutter plate closes. A shutter plate may be attached to the cylinder to prevent the hole from being blocked by the cylinder.

In addition, 44 and 44' are protrusions for holding the shutter plate in a predetermined position so as to close the hole when the buoyancy of the float part is large.

Alternatively, as shown in FIG.
' and are formed at different levels from each other, and the holes 51° and 51 are formed.
Projections 52, 52' are formed at predetermined positions above and below the cylinder 50.
If the buoyancy of the ring is greater than the weight, the upper end of the ring and the protrusion will engage, and in that case, the hole will be closed by the ring, and the buoyancy of the ring will be greater than the buoyancy of the ring. As the weight becomes larger and the ring begins to descend and the lower end of the ring engages with the protrusion, the holes 55, 55' formed in the ring open the cylindrical hole 51.
51' may be configured so that it is not blocked.

Note that the rings 54 and 54' rotate to open the cylindrical holes 51 and 51.
It is preferable that a vertical guide portion be formed in the tongue and the cylinder so that the holes 55 and 55' of the ring are not misaligned.

Alternatively, as shown in FIG. 7, a ring 63 in which a vertical slit 61 is formed in a cylinder 60 and a spiral slit 62 is formed with an inner diameter that is approximately the same as the outer diameter of this cylinder.
is fitted into the cylinder 60, and a shaft 65 having a diameter smaller than the width of the slit in which the flow l part 64 is provided is inserted into the slits 61 and 62 so that the ring 63 can be rotated by the vertical movement of the float. , and the portion of the slit 61 at the level of the liquid level may not be blocked by the intersection of the slits 61 and 62.

In this way, by configuring the cylinders disposed in the hot water storage tank 20 as shown in FIG. 4, FIG. 5, FIG. 6, or FIG. The notch formed in the hot water storage tank becomes blocked or becomes unblocked, and the water in the upper layer stored in the hot water storage tank is removed from the notch that is not blocked, that is, the notch in the main part above the liquid near the liquid surface. only will flow into the cylinder.

Therefore, of the hot water stored in the hot water storage tank, the upper layer, which is relatively high in temperature, is taken out and used, resulting in excellent hot water usage efficiency.

Even if the amount of hot water stored in the hot water tank runs low, it can be used to the last drop, and a large amount of hot water can be used even in winter when the amount of sunlight is low.

In addition, in the summer when there is a lot of solar radiation, even if water is supplied in an amount matching the amount of hot water taken out, the hot water is always taken out only at the main part above the liquid level, so there is almost no temperature drop due to the cold water supplied.

By changing the usage method using a single device, hot water can be used efficiently throughout the year, in both summer and winter.

As described above, the water intake mechanism according to the present invention includes a water storage tank for storing liquid inside, a hollow cylinder having a water intake at the bottom and standing upright in the water storage tank, and an inside of the cylinder. A notch that communicates with the cylindrical body and is formed sequentially from the top to the bottom;
It consists of a shutter member that opens and closes the notch as the liquid is displaced, and when the liquid descends during water intake, the shutter member operates sequentially from the upper notch to the lower notch to release it. Since the structure is configured so that water can always be taken in sequentially starting from the upper part of the liquid, it is possible to always take out only the upper part of the liquid stored in the tank. The hot water can be extracted preferentially from the high temperature area, and if used in the hot water tank of a solar water heater, etc., the hot water usage efficiency will be excellent. Hot water is always drawn from the upper layer of the tank, which means that no matter what the water level is in the tank, hot water is always drawn from the upper layer, and the temperature of the liquid drawn during the water intake process will vary. It is very convenient to use because the notch does not change suddenly, and the arrangement of the notch and the shutter member does not need to be very precise, for example, if the notch is aligned with the shutter. Even if it is not completely blocked by the material, there is no negative effect as water will not flow into the cylinder through this gap, and if it is used only for the hot water tank of a conventional solar water heater, it will provide hot water throughout the year in summer and winter. It has the advantage of being able to efficiently use large amounts of.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams of conventional solar water heaters;
The figure is an explanatory diagram of a solar water heater using the water intake mechanism according to the present invention, and FIGS. 4, 5, 6, and 7 are explanatory diagrams of the cylinder of the water intake mechanism according to the present invention. 20...Hot water tank, 25...Cylinder, 30.
30'...Inner wall, 31°31'...Outer wall, 32.32', 33.33', 37.37', 41
．． 41', 51. 51'...hole, 34.34', 44.44',
52.52'...Protrusion, 35°35', 42
．． 42', 53.53', 64...Float part, 36.36', 43°43'...Shutter plate, 54.54', 63...Ring, 61°6
2...Slit.

Claims (1)

[Scope of utility model registration request] A water tank is provided to store liquid inside, and a water intake is provided at the bottom.
A hollow cylindrical body installed upright in the water storage tank, a notch that communicates with the inside of the cylindrical body and is formed sequentially from the top to the bottom of the cylindrical body, and the notch that opens as the liquid is displaced. It consists of a shutter member that opens and closes, and when the liquid descends during water intake, the shutter member operates sequentially from the upper notch to the lower notch to release the liquid, so that water can always be taken in sequentially starting from the upper part. A water intake mechanism characterized by the following configuration.