FR2787344A1 - Hard water filter comprises first reservoir containing filter cartridge and second reservoir containing filter regeneration product - Google Patents

Abstract

The filter comprises a first reservoir (5) containing a filter cartridge and a second reservoir (2) on top of the first containing a filter regeneration product. Water is supplied to either reservoir, for purification or to dissolve the regenerating product. A valve (10) allow discharge of purified water or regenerating liquid. A valve (3) between the reservoirs opens under water pressure From bottom to top, the filter contains a reservoir (5) containing a filter cartridge for hard water or for a bulk product contained in the water to be filtered, fed with water to be filtered and closed at the top by a wall (8) with a retaining valve (3) which prevents the water from entering the reservoir, and a reservoir (2) above the first reservoir containing a product which regenerates the filter cartridge. This product is dissolved by water from the same source as the water to be purified which enters the first reservoir through the valve which opens under the pressure of the water in the second reservoir. A tube or direct outlet at the bottom of the first reservoir is controlled by a valve (10) to allow the purified water to leave through an outlet (E) or the regenerating liquid to leave through an outlet (F). A water feed system supplies water to be purified and water to dissolve the regenerating product and is connected to a water source (D and a valve (11). The second reservoir has a cover (1). The valves are three-way, with the third way corresponding respectively to closure of the liquid evacuation and closure of the water supply. A third reservoir (4) closed at the top by a wall (8) with a retaining valve (3) and with a base (9) full of holes controls the liquid flow into the first reservoir. The water to be purified is sent to this third reservoir.

Description

* '2787344

-1-

  The present invention relates to a filtering apparatus

  tion of limestone, this device is entirely mechanical and does not include any electrical element, it works according to the following principle: Operating principle of the limestone filtration device according to figure 1: Filtration mode (according to figure 1): L the device is connected to the network. D ,, the valve

  "11" is in position "A" and the valve "10" in position

  tion "A1", under pressure the water is directed into the tube "7" which passes through the wall "9 ,, the water arrives in the tank" 4 ", the water cannot pass through the wall" 8 " to go back into the tank "2" because the valve

  retainer "3" prevents water from going up into the tank

  see "2", it is the pressure of the water in the tank

  "4" which closes the valve "3", the water goes into the

  servoir "5" through the wall "9" in which are made regulation holes specially designed to limit the flow of water, the water passes slowly into the tank "5" which contains a lime filtration product l after being in contact with the product incorporated in the tank "5" is freed of lime, the filtered water is distributed by the valve

  "4 10" exit "Al" to network "E".

  Washing mode (according to figure 1): the appliance is connected to network "D", the valve

  "11" is in position "B" and the valve "10" in po-

  sition "B1", the water is directed into the tube "6", -2- crosses the wall "9", the wall "8. then arrives in the tank" 2 "which contains a product which allows to regenerate the product contained in the tank "5", the water + product contained in the tank "2," (= mixture) under pressure are expelled by the

  valve "3" which lets the mixture pass into the tank

  see "4., it is the pressure in the tank" 2, "which opens the valve mechanism" 3 ", the mixture cannot go back up because the valve" 3, "allows the circulation of the liquid only from the tank" 2 "towards the tank", 4 "under pressure the mixture passes from the tank" 4 "into the tank" 5 "through the wall" 9 "where are made regulation holes specially studied to limit the flow of the liquid, the mixture arrives in the tank "5". the mixture passes slowly through the product contained in the tank "5" and regenerates it, the mixture is expelled by the valve "10" outlet "B1" towards

the "F" network.

  Mode of recharging the product contained in the tank "2" (according to figure 1): The valve "11," is placed in position "C" to cut the flow of the network "D", Open the cover "1, and put the product in tank "2 .. until

  that it is full, close the cover "1".

  This operation is repeated each time the level of the product decreases in the tank ,, 2 ,,

  - Operating principle of the filtering device

  tion of the limestone according to figure 2: -3- Filtration mode (according to figure 2): The device is connected to the network "D", the valve

  11, is in position "A" and the valve "10" is in position

  sition <A1 ", under pressure the water is directed into the tube" 12 ", towards the reservoir" 5 ", the water enters the cartridge" 13 "which has on its upper part regulation holes specially designed for limit the flow of water in the cartridge ", 13" inside which is a product which filters the limescale, the water cannot go up in the tank "2" through the wall

  "8" because the check valve "3" prevents water from re-entering

  mount in tank "2". it is the pressure of the water in the tank "5" which closes the valve "3". The water

  slowly passes through the regulation holes

  ques in the cartridge "13", the water is freed of lime before passing through the tube "14 ,, then comes out

  by the valve "10" outlet "Al" to the network "E".

  Washing mode (according to figure 2): The appliance is connected to network "D". valve

  "11" is in position "B" and the valve "10" in posi-

  tion "B1 ,, the water is directed into the tube" 6 "through

  towards the wall "8," in the tank "2" which contains a product which makes it possible to regenerate the product contained in

  the cartridge ", 13". water + the product contained in the

  Servoir "2" (= mixture) under the pressure passes into the control valve <3 ", through the wall" 8 ". It is the pressure exerted in the tank" 2 "which opens the

  valve "3" and allows liquid to enter the car-

  -4- button <"13" by the valve "3", the water cannot go back up in the tank "2", because the valve "3" allows the circulation of the liquid only from the tank "2" towards the cartridge "13, the mixture passes slowly through the product contained in the cartridge" 13 ,, and regenerates it, the mixture is then directed into the tube "14" then is expelled by the valve "10" outlet "B1" towards the

"F" network.

  Mode of recharging the product contained in the tank "2" according to figure 2: The valve "11" is placed in position "C" to cut the flow of the network "D". Open the cover "1" and put product in the tank "2" until it is full, then close the cover "1". This operation is repeated each time the

  level of the product in the tank, 2 "decreases.

  Operation of the 11 "and" 10 "valves according to Figure 3, views 1 and 2 and 3: To switch the valves to the position according to the mode: filtration, washing or recharging, the valves" 11 "and, 10" must be turned manually according to figures 1 and 2, however it is possible to adapt a mechanism which allows tilting in a single operation (see figure 3) the valves "11" and ", 10" figures 1 and 2: Filtration mode: valve "11" in position "A" and valve <10 "in position" A1 h: (view a) Toggle the handle "G" in position <H "which -5- allows the valve <11" to be tilted simultaneously

  "À" and the valve "<10," outlet "A1 i.

  Washing mode: valve 11 "in position" B "and valve" in position <, B1: (view b) Toggle handle ", G", in position <"Hi" which allows to simultaneously switch valve "11, outlet

  "B" and the valve <, 10 "outlet" B1 ".

  Refill mode: valve "11" in position "<C" and valve "10" in position ", Cl: (view c) Toggle handle" G "in position" H2 "which allows valve" 11 "to be tilted simultaneously exit

  "C" and valve "10" outlet "C1".

-6-

Claims (4)

  1) Limestone filtration device characterized in that it comprises from bottom to top: - a reservoir (5) containing a cartridge for filtering limestone (Figure 2) or the bulk product (Figure 1) contained in the water to be purified, supplied with water to be purified and closed at its upper part by a wall (8) provided with a check valve (3) which prevents the water to be purified from entering the tank (2) - a tank (2 ) surmounting the tank (5) containing a regenerating product for the filter cartridge, this product being dissolved by water from the same source as the water to be purified which enters the tank (5) via the valve (3) which opens under the pressure of the water admitted to the tank (2) - a tube (14) (Figure 2) or a direct outlet (Figure 1) located at the base of the tank (5) allowing the evacuation via a valve (10) either of the purified water by the outlet E, or of the liquid mixture having regenerated é the filter cartridge via outlet F. - a system for supplying water to be purified or water for dissolving the regenerating product consisting of a connection to a water source D and a valve (11) - a cover (1) closing the tank (2) 2) Apparatus according to claim 1 characterized in that the valves (10) and (11) are three-way, the third way corresponding respectively to the closure of the discharge of the liquid and to the closure of water supply.   3) Apparatus according to any one of claims   previous characterized in that it comprises a tank (4) closed at the upper part by the wall (8) provided with the check valve (3) and the bottom of which is constituted by a wall (9) provided with holes intended to regulate the flow of the liquid flowing in the tank (5) 4) Apparatus according to claim 3 characterized in that the water to be purified is directed into the tank (4)