FR2650899A1 - Quadruple self-priming and self-depriming syphon preventing overflowing and/or complete emptying of a receptacle - Google Patents

Abstract

The invention relates to a device making it possible to regulate the level of liquid in any receptacle receiving irregular or non-irregular top-ups of liquid, without overflowing and without complete emptying, and withstanding power cuts of several weeks without loss of efficiency. This device consists of four syphons: a syphon 1, the highest point of which is at the height of the maximum desired level, allowing the removal of liquid, regulated by a tap 2 connected to a tapping on the syphon 5, the other three syphons being immersed in the receptacle, the syphon 3 serves to feed a pump which should not be self-priming, the syphon 4, with a diameter equal to that of the syphon 1, leads the water from the pump to the receptacle, the syphon 5 is mounted on a tapping on the syphon 4 and its flow rate is regulated by a tap 6. A small-diameter pipe 7 is fixed to the highest point of the syphon 1 in order to prevent complete priming thereof by drawing in air. This device according to the invention is particularly intended for aquariums provided with a more or less continuous water feed of the "drop by drop" type.

Description

The present invention relates to a device making it possible to regulate the level of a liquid in any receptacle receiving regular or irregular additions of said liquid, without overflow or complete emptying of the receptacle, using siphons, and supporting power cuts of several weeks without loss of yield.

Regulation of the liquid level in such containers usually requires drilling at the height of the maximum level desired, thereby eliminating any possibility of subsequent level adjustment.

The device according to the invention makes it possible to remedy these two drawbacks, that is to say adjustment of the maximum level at a variable height, absence of drilling of the container. I) e more, it avoids emptying the container by allowing the adjustment of the siphoning height.

This device comprises four siphons, a pump and two regulating taps, and uses pipes of three different diameters. Your figure I represents the whole device: The siphon-3-whose end fitted with a strainer plunges into mid-height of. container, feeds a non-self-priming pump -9- which distributes the liquid to the three other siphons as follows: The siphon -4- fitted with a filter at its end> plunges into the container at shallow depth; the siphon -5 - whose flow is regulated by a tap -ó-, is equipped with a filter at its end and plunges into the container to a slightly shallower depth than the siphon -4-.I1 is mounted as a bypass on the siphon -4 -.The siphon -J-, connected in diversion to the siphon -5- must be of a diameter slightly greater than that of the siphons -4- and -5- which are of the same diameter; this siphon -1- is regulated by a tap, and serves as an evacuation for the liquid. It is equipped with a small diameter pipe fixed at its highest part in bypass, oriented upwards and of height greater than the edge of the container -11-
This siphon -1- is adjustable in height by sliding along a fitted support. The top of this siphon must be at the maximum height of liquid desired in the container -IO-.The tap -6- is used to regulate the -pressure cuts due to the stopping or starting of the pump. The tap -2- regulates the water discharge rate in the siphon -I-. The pipe -7 is used to prevent the siphon -I - prime completely by air intake when the liquid flow rate becomes too high.

Variants:
The pump -9- can be external or submerged in the container.

The end of the siphons -4- and -5- can be designed according to Figures 2/6 or 3/6.

An embodiment is designed for aquariums equipped with drip:
The support -12- is a schoolboy rule (fiv.4 / 6) fixed to the wall by means of two screws and detached from it by washers -13- and -14-. On this rule forcefully slides a wire of iron shaped according to Figure 5/6.

The device is set up according to Figure 6/6.

Depending on the existing installation, the pipes have the following diameters: siphons -1- and -3-: 9mm inside, 12mm outside.

 siphons -4- and -5-: 12mm inside, l4mm outside.

pipe -7-: 4mm inside, 5mm outside.

The equipment (pump, taps, piping) is made of food grade polyvinyl chloride.

The device is independent of any electronic measurement system, using only the laws of physics.

The pump -9- does not serve quota to eliminate possible bubbles produced by a possible fermentation, difference in temperature or pressure.

This device is applicable to any container or container whatever its size provided that the diameter of the pipes is compatible with the maximum flow desired.

Claims (6)

1) Device for regulating the level of a liquid in a container characterized in that it comprises a siphon -5- connected in diversion to a simple siphon -4- supplied by a non-self-priming pump itself supplied by a siphon inlet -3- regulated by a tap -6- and supplying a second siphon -J- itself regulated by a tap -2-. 2) Device according to claim (1) characterized in that the evacuation siphon must have a diameter greater than that of the siphons -4- and -5-. 3) Device according to the preceding claims characterized in that at the top of the drain siphon -1- is connected a small diameter pipe -7- whose upper end is located above the upper edge of the container.  4) Device according to the preceding claims characterized in that the height of the drain siphon -1- is adjustable depending on the level of liquid desired in the container -10-. 5) Device according to the preceding claims characterized in that the level regulation is independent of any electronics. 6) Device according to the preceding claims characterized in that the pump can forittiton continuously, intermittently, or even break down for several weeks without this affecting the proper functioning of the device.