ES1205761Y1 - REVERSE OSMOSIS DEVICE WITH RECOVERY OF THE EXPENSED FLOW - Google Patents

Description

DESCRIPTION

REVERSE OSMOSIS DEVICE WITH FLOW RECOVERY

DISPOSED

Object of the invention

The object of the present specification is a reverse osmosis device with recovery of the discharged flow, produced during the osmotic filtering and its subsequent injection into the domestic network of plumbing, being able to use said volume of water for other diverse uses, such as, for example, for use in tanks, showers, appliances, etc.

Background of the invention

At present, a variety of domestic osmosis devices are known in the state of the art, whose purpose is to obtain water of low mineralization, and which implement a quite similar method of operation.

Basically, the operation of these devices is based on a physical phenomenon, through which two fluids of different concentration separated by a semipermeable membrane (porous structure with holes the size of a few micrometers), filters the particles at the molecular level. In this way, it is possible to separate two solutions (one with higher saturation than the other) at the same barometric pressure, with said semipermeable membrane, the water of the less saturated solution will pass to the more saturated one.

Thus, by applying a higher barometric pressure to the solution with higher saturation, the membrane will allow the passage of the solution of higher saturation to the one of lower saturation, with the exception that only the liquid molecules will pass, but not the particles suspended or dissolved in them. This process is known as "Reverse Osmosis".

The problem with this type of process is that it rejects a large amount of water, which is wasted, wasted without control, and is not used for other uses.

To alleviate this problem, the applicant is aware of the existence of the Spanish utility model ES 1 067 790 which describes a device for the use of wastewater in domestic reverse osmosis equipment of the type comprising several previous filters, an osmotic membrane and a deposit pressurized where the water is stored purified for consumption through the corresponding additional tap, characterized in that the device for using the wastewater is composed of an auxiliary tank in which the waste water from reverse osmosis accumulates, equipped with an outlet that channels the water again to the previous filters of the reverse osmosis equipment, and an input of drinking water from the network, to compensate for the water consumed from the pressurized tank.

Said utility model improves the state of the art, but has the main disadvantage that, when reusing excess water from the osmotic process, mixed with water from the supply network, it causes a greater saturation of the membrane, which inexorably causes that is stuck with a greater assiduity and, therefore, has to be replaced more frequently, and therefore, increases maintenance costs ostensibly, in addition to reducing the quality of the water obtained by the treatment.

Description of the invention

The technical problem that solves the present invention is to achieve a reverse osmosis device that allows to take advantage of the water flow rejected by the osmotic filtering process, deriving said flow to the plumbing network, taking advantage of the volume of water paid by the user. For this, the reverse osmosis device with recovery of the discharged flow, object of the present utility model memory, is characterized in that it comprises filtering means of the water flow received from the water supply network (improving its qualities as to suspension of particles, odors and flavors), and which manages to optimize, the water rejected by the osmosis cycle integrated in it, being able to be reused in the household plumbing network in question.

Thanks to its use, the device presented here will allow an almost total use of the hired water resources, not discarding water flow, which can be used in processes that do not require a higher water quality, such as, for example, the use of electrical appliances, showers or similar. Thus, the user may use the rejected or discarded water, at any point of the installation, as if it were water from the commercial supply network.

In this way, the purpose of the device will be the optimization of the rejection of saturated water by the equipment or system of reverse osmosis known in the state of the art, which have ranges of between: 1: 2 in equipment with pressure pump and new membrane; until 1:12 at the end of the cycle of use of the mentioned membrane in equipment without pressure pump.

Bearing in mind that generally the devices of reverse osmosis are of greater use in the zones where the water is scarce, the high relation between the water consumed and the rejected water is the main problem for the purchase of these devices.

Brief description of the figures

In the following, a drawing is briefly described that helps to better understand the invention and that are expressly related to a realization of said invention that is presented as a non-limiting example of this.

FIG 1. Shows an exploded view of the reverse osmosis device with recovery of the discharged flow, object of the present utility model.

FIG 2. Shows a perspective view of a preferred embodiment of the reverse osmosis device with recovery of the discharged flow, object of the present specification.

FIG 3. Shows a schematic view of the reverse osmosis device with recovery of the discharged flow.

PREFERRED EMBODIMENT OF THE INVENTION

A preferred embodiment of the invention is shown in the attached figures. More specifically, the reverse osmosis device with recovery of discharged flow, object of the present specification, is characterized in that it comprises a connection valve to the water supply installation of the house (1), which is connected to a valve of bypass (2) used for filling the device during the commissioning and / or periodic maintenance thereof, and where, in turn, said valve (2) is connected to a first pressure switch (3) associated with a manometer ( 4) and a first electrovalve (5) in charge of regulating the flow of water rejected from the device to the water installation of the house.

The bypass valve (2) will also be connected to a second solenoid valve (6) that regulates the passage of water from the water installation of the house to the osmosis circuit, composed of a container body of the sediment filter (7), that allows the filtration of the clay, mud and vegetable particles of the water; and with a container body of the carbon filter (8), responsible for eliminating the odors and flavors of the water.

The first electrovalve (5) is connected to a second pressure switch (14) or rejection pressure switch, in charge of measuring the pressure of the rejection circuit, prioritizing the osmotized water filtration in front of the water injection rejected in the water installation the House. Associated with said second pressostat (14) is an injection pump (13) responsible for taking the water from the reject tank (12) and increasing its pressure to reach, as a minimum, the water pressure of the water installation of the dwelling . The rejected water is at two points of connection with the domestic plumbing network: a first connection point (23) between the end of the rejected water pipe and the start of the osmosis system pipe; and a second connection point (24) in the conduit that connects the assembly to the domestic network, coexisting asl, the water rejected with the water of the plumbing network and the by-pass conduit (2).

The tank (12) will be connected to a regulator or flow restrictor (11) that restricts the flow of rejection, to optimize the operation of the membrane.

Next, located is the restrictor (11) is the container of the membrane (10) responsible for filtering the salts and nitrates of water, connected to a valve of four vlas (9) which is connected in turn, with the filters (7,8); and that restricts the flow of water between the membrane (10) and the post-filter (16), in charge of eliminating the last impurities present in the water, after the osmosis treatment, helping to improve the taste of the water.

Finally, the post-filter (16) is connected to a third pressure switch (18) connected with a connection valve (19) to the osmosis tank (19), which is connected to the tap (20) or water supply element osmotized.

All this, will be mounted on a chassis (21) with essentially prismatic shape that will allow the correct placement of the conformant elements of the device. Said chassis (21) will have the connections for the pipes (22) that will distribute the water to: osmotized water tap, installation of drain and installation of water. And in turn, connection means and electrical power, which will allow to provide power to the device.

Claims (4)

1. Reverse osmosis device with waste flow recovery comprising: (a) a connection valve to the water supply installation of the home (1) that is connected to a bypass valve (2) used for filling of the device during the start-up and / or periodic maintenance thereof; (a.1) and where the bypass valve (2) is connected to a second solenoid valve (6) that regulates the passage of water from the water installation of the house to the osmosis circuit; and (b) where the osmosis circuit is composed of: (b.1) a container body of the sediment filter (7), which allows the filtration of the clay, mud and vegetable particles of the water; and (b.2) a container body of the carbon filter (8), responsible for eliminating odors and flavors from water; and wherein the reverse osmosis device is characterized in that (c) the bypass valve (2) is connected to a first pressure switch (3) associated with a pressure gauge (4) and a first electrovalve (5) in charge of regulating the flow rate of water rejected from the device to the water installation of the house; (d) and where the first electrovalve (5) is connected to a second pressure switch (14) or rejection pressure switch, in charge of measuring the pressure of the rejection circuit, associated with an injection pump (13) responsible for taking the water from the rejection circuit (13). deposit of rejection (12) and increase its pressure to reach as a minimum, the water pressure of the water installation of the house; (e) and where the tank (12) is connected to a regulator or flow restrictor (11) that restricts the flow of rejection, in such a way that said flow regulator (11) is connected to the membrane container (10). ) responsible for filtering the salts and nitrates of the water; (f) and wherein said membrane container (10) is connected, in turn, to a four-way valve (9) which is connected to the filters (7, 8) and where said four-way valve (9) ) is configured to restrict the flow of water between the membrane (10) and the postfilter (16), responsible for removing the last impurities present in the water, after the osmosis treatment, helping to improve the taste of the water; (g) and where the postfilter (16) is connected with a third pressure switch (18) connected with a connection valve (19) to the osmosis tank (19), which is connected to the tap (20) or supply element of the desalinated water; and (h) where the rejected water is at two points of connection with the domestic plumbing network: a first connection point (23) between the end of the rejected water conduit and the beginning of the osmosis system conduit; and a second point of connection (24) in the conduit that connects the assembly to the domestic network, thus coexisting the water rejected with the water from the plumbing network and the bypass conduit (2). Device according to claim 1, wherein it incorporates a chassis (21) with an essentially prismatic shape that houses the conformation elements of the device. Device according to any of claims 1 - 2 wherein the chassis (21) has the connections for the pipes (22) that will distribute the water to: osmotized water tap, installation of drain and installation of water. Device according to any of claims 1 - 3, wherein the chassis (21) incorporates electrical connection and feeding means, which provide the device with current.