JPH0144466Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a liquid tank used, for example, as a holding tank in a milk sterilization device.

[Conventional technology]

Conventionally, this kind of liquid tank was disclosed in Japanese Utility Model Publication No. 61-1103, for example, which had an inlet at the top and a cleaning nozzle at the bottom, and an outlet at the bottom. It is known that a perforated or mesh current plate is inserted and the current plate is supported on the peripheral wall of the tank body so that it can be turned vertically or horizontally by applying an external force.

[Problem that the invention attempts to solve]

In practical terms, the conventional liquid tanks described above are effective for applications where the holding time is long and the tank diameter is relatively large, and the amount of liquid inflow and outflow is small. As the tank itself becomes smaller, the speed of liquid inflow increases, and when it flows into the tank, it diffuses and mixes with the liquid in the tank, making the liquid on the rectifying plate uneven. I can't get it.

[Means for solving problems]

In this invention, a rectifying plate made of perforated plate or mesh having a diameter slightly smaller than the inner diameter of the tank body is installed vertically with an external force inside the upper part and the lower part of the tank body, which has an inlet at the top and an outlet at the bottom. In a liquid tank that is supported on a shaft so that it can be turned vertically or horizontally, the height of the inlet is below the liquid level, the direction of inflow is tangential, and the position of the outlet is at the center of the bottom wall. The present invention also provides a liquid tank characterized in that a baffle plate for preventing rotation of the liquid is provided on the lower surface of the rectifying plate, thereby solving the above-mentioned problems.

〔Example〕

The first embodiment shown in FIGS. 1 to 3 has a holding tank body 4 for a sterilizer equipped with a cleaning liquid nozzle 2 at its upper part, and a tank with a diameter slightly smaller than the inner diameter of the tank body 4 is installed in the upper part and the lower part of the holding tank body 4. The perforated current plates 5, 5' are inserted, and these current plates 5, 5' are supported on the peripheral wall of the tank body 4 by means of a pneumatic actuator 6 so that they can be oriented vertically or horizontally. An inlet 1 whose height is below the liquid level and whose inflow direction is tangential is provided on the side surface of the upper part of 4, and an outlet 3 is provided at the center of the bottom wall at the bottom, and the inlet 1 is as large as possible. An inflow pipe 7 having a large diameter and rising from below is connected, and a baffle plate 8 for preventing the rotation of the liquid in a cross shape is fixed to the lower surface of the rectifying plate 5, 5'. In the second embodiment shown in FIG. 5, a gutter 9 is provided which is continuous with the inlet 1 and goes around the inner peripheral surface of the tank body 4, and whose outer wall is higher than the inner wall. This is how it was done.

Incidentally, in the figure, reference numeral 10 indicates a swirl prevention member, and reference numeral 11 indicates a heat insulating material, and it goes without saying that the holding tank body 4 may be provided with a liquid level gauge, a thermometer, a manhole, a vent, etc.

[Effect]

The present invention has the following functions added to the conventional one described above.

In order to make the distance that the liquid travels within the tank the same, the liquid is placed on the outer periphery, centered, and flows in the tangential direction so that it flows through a pipe with as large a diameter as possible.

The inlet was constructed by raising a pipe from below in order to reduce the inflow speed and prevent the generation of vortices.

The inlet was installed at a location somewhat lower than the tank retaining liquid level to prevent foaming.

A cross-shaped baffle plate was installed below the rectifier plate to prevent the liquid from rotating within the tank.

An additional rectifying plate was installed below the liquid inlet to improve performance.

The rotation of the rectifier plates for cleaning was automated using a pneumatic actuator, an electric motor, etc. in addition to a manual handle, so that the two rectifier plates could be controlled individually or simultaneously.

In other words, the smaller the diameter and the longer the tank, the easier it is to equalize the retention time, and the new rectifier plate installed at the top of the tank makes automation an effective means.

[Effect of idea]

Since the present invention is as described above, it has effects such as being able to achieve a higher uniformity of holding time than conventional ones, and also obtaining good results with respect to foaming, which is a problem when milk is held at high temperatures. It is something.

[Brief explanation of the drawing]

The drawings show an embodiment of the liquid tank of the present invention, in which Fig. 1 is a partially cutaway front view of the entire first embodiment, and Fig. 2 is a sectional view taken along the line A-A in Fig. 1. , FIG. 3 is a partially cutaway side view showing the current plate in an upright state, FIG. 4 is a cross-sectional view of the main part of the second embodiment, and FIG.
The figure is roughly a longitudinal cross-sectional view. 1... Inlet, 2... Cleaning liquid nozzle, 3... Outlet, 4... Tank body, 5, 5'... Current plate,
6...actuator, 7...inflow pipe, 8...
...Baffle plate, 9...Gutter, 10...Swirl prevention plate, 11
...Heat insulation material.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A tank body with an inlet at the top and an outlet at the bottom has a perforated plate or mesh with a diameter slightly smaller than the inner diameter of the tank body in the upper and lower parts of the tank body. In a liquid tank in which a rectifying plate is supported on a shaft so that it can be turned vertically or horizontally using an external force, the height of the inlet is below the liquid level, the direction of inflow is tangential, and the position of the outlet is at the bottom. A liquid tank characterized in that a baffle plate for preventing liquid rotation is provided at the center of the wall and on the lower surface of the rectifying plate. 2. The liquid tank according to claim 1 of the utility model registration claim, characterized in that the inflow pipe to the inflow port has a diameter as large as possible and is a pipe rising from below. 3. The liquid tank according to claim 1, wherein the outer wall that is continuous with the inlet and goes around the inner peripheral surface of the tank body is provided with a gutter that is higher than the inner wall. 4. The liquid tank according to claim 1, wherein the external force for changing the direction of the rectifying plate is obtained by a drive source such as a manual handle, an actuator, or an electric motor. 5. The liquid tank according to claim 1, which is characterized by having a cleaning liquid nozzle on the upper part of the tank body.