ES1056877U - Water filter. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Filter for water, characterized in that it is constituted by a series of separate filter chambers and a common collecting chamber, which filter chambers contain a filter bed and have an upper mouth which is connected by one or more selector valves pass a water supply conduit filtered and an overflow conduit, and communicating with the collecting chamber through one or more openings; and said collecting chamber has an outlet for filtered water flow valve; maintaining the selector valves pass communication between the supply line water filter and the corresponding filter chambers and the bypass valve of the outlet of filtered water from the collection chamber open during the filtering process, while said stopcock of the outlet of filtered water is closed completely or partially and the selector valve passage of the upper mouth of one of the filter chambers puts encomunicación said filter chamber with the overflow conduit, for washing the filter bed said chamber. (Machine-translation by Google Translate, not legally binding)

Description

Water filter

This utility model refers to a water filter conceived as a package or filter unit, composed of a series of cameras or filter modules independent, with filter beds, and constituted so that It is easily cleanable.

The filter bed of water filters is usually  be constituted based on sands and other products, which act as retaining elements of impurities and / or particles that You can drag the water to filter. The accumulation of these particles or impurities cause the filter bed to lose filtration capacity progressively, being therefore necessary proceed with some frequency to wash the aggregates that They constitute the filter bed. This washing is usually achieved circulating water through the filter bed in the direction opposite to filtering.

To carry out this washing, it is usually available of an auxiliary tank containing a certain volume of water for this purpose, which has been previously filtered. It is also known to reverse the direction of water circulation through the filter, so that the water to be filtered can pass through the filter bed in the opposite direction to the filter, to remove and drag impurities and wash the filter material.

The first commented system, although it can allow the washing of the filter bed with clean water, previously  filtered and contained in reserve deposits, requires having these reservoirs and pumps for water drive to countercurrent and the corresponding circuits of intercommunication.

The second system involves carrying out the cleaning the filter bed with unfiltered water, since particles that drag this water will be retained in the bed and will then pass to the filter water when the filter works in the sense of filtering

The present invention is intended to eliminate the problems exposed by a filter that is constitution simple and compact and that allows to carry out the cleaning of the filter bed with clean water, previously filtered, without need to have storage warehouses auxiliary

For this, in accordance with the present invention, The filter consists of a series of cameras or modules independent filters and by a common collecting chamber. The filter chambers contain a filter bed and have a upper mouth and communicate with the collecting chamber through openings To the upper mouth is connected, by one or more selector valves, for example by means of a three-way valve, the water supply line to be filtered as well as a overflow driving. As for the collection chamber, it has an outlet with a filter valve.

During filter operation, the selector valves are arranged to maintain communication between the water supply line to be filtered and the corresponding filter chambers. For its part the valve Filtered water passage of the collecting chamber is kept open. With this arrangement the water to be filtered will enter the different cameras or filter modules and will go to the collection chamber, after going through the filter bed, finally coming out of the mouth and outlet valve of this collecting chamber.

When you want to proceed to wash a camera  determined the closed water inlet valve of the collecting chamber and the selector valve of the upper mouth of the module or filter chamber to be cleaned puts in communication said camera with overflow conduction, while in the rest of the chambers the water inlet to be filtered is maintained that will pass through the filter bed until reaching the collection chamber, from where it will pass in reverse through the chamber filter bed to filter, to finally exit through the upper mouth through the three-way valve to the overflow line.

The characteristics, advantages and operation of the filter of the invention may be better understood with the following description, made with reference to the attached drawings, in which an example of non-limiting embodiment is shown.

In the drawings:

Figure 1 shows in schematic section a water filter constituted according to the invention, in filtration process

Figure 2 is a view similar to Figure 1, with the filter in the process of washing the first chamber or module filter.

The filter shown in the drawings is composed by four cameras or filter modules, with numbers 1 to 4, and for a common collecting chamber 5. Filtering chambers or modules 1 to 4 communicate with the collecting chamber 5 through small openings or crepe 6.

Each of the chambers or filter modules 1 to 4 houses a filter bed 7 which may be constituted based on sand / anthracite. Each camera also has an upper mouth 8 in which a three-way valve 9 is mounted through which said reservoir can be selectively connected to a line 10 of water supply to be filtered or to an overflow pipe eleven.

For its part, the collecting chamber 5 has an outlet 12 with passage valve 13.

The set of cameras that make up the filter  they will be preferably made of stainless steel and its Operation can be manual or automatic.

When the filter works as such, the valves 9 three-way are kept in the position shown in the figure 1, in which the water from the pipe penetrates it into the chambers 1 to 4, passes through the corresponding filter bed 7 and is finally collected with the collecting chamber 5, where the filtered water through valve 13 in the open position.

When you want to proceed to wash the cameras, this operation is carried out one by one, starting for example by camera 1 as shown in figure 2. In in this case the three-way valve 9 of the chamber 1 is available so that the mouth 8 of the camera is in communication with the overflow conduction 11, keeping valves 9 of the chambers 2, 3 and 4 in the same position as figure 1, that is communicating the water supply line to be filtered 10 with the corresponding cameras. On the other hand, the valve 13 from the outlet 12 of the collecting chamber 5 is maintained closed. In this situation the water that enters the chambers 2, 3 and 4, it will pass through the corresponding filter bed and go to the collecting chamber 5. Being the outlet of this chamber closed by valve 13, filtered water will rise through the openings and filter bed 7 of chamber 1, leaving finally through mouth 8 until overflow conduction 11. In this mode of operation will be carried out bed cleaning  filter 7 of chamber 1, operation that takes place with water clean, previously filtered through chambers 2, 3 and 4, with which the filter bed of chamber 1 will not retain impurity Some in the washing operation.

This operation will be repeated successively with the rest of the chambers, correctly positioning valve 9 corresponding three-way and always keeping valve 13 in closed position

Once the washing or cleaning is finished  of the filter bed of all the chambers, the different valves in the position described with reference to figure 1, in which is carried out the normal filtering process.

Although in the example represented in the drawings The filter is composed of four cameras, the number of they may vary, depending on the necessary volume in any case of clean water to clean one of the chambers filtering

In the filter of the invention the bed washing filtering of the different chambers is carried out with water clean, from the same filtration system. By its way of operation and by design, the filter of the invention is ideal to be installed in small supplies to towns and to be integrated in emergency water treatment plants, since its Small size and weight make it suitable for these facilities.

The filter assembly may have a design simple construction, straight prismatic, plan rectangular, consisting of four chambers or filter modules, such and as depicted in the drawings, each with a bed 7 independent filtration and provided with false bottom and crepe, being all communicated with the common collecting chamber 5 that Receive filtered water. This design allows you to take advantage of 100% of the space, without spherical bottoms or curved generatrices.

When washing the beds Filters with water from the system itself, avoid auxiliary tanks filtered water containers for this purpose and the pumps for the flow of water against the current, since with the same filtration drive is washed filters, either said gravity or pumped drive.

The water flow of each of the modules Filters comes from the water filtered by the other modules, by what this flow is constant and regulated in the manufacture of equipment.

Being able to be all the filter built in steel  stainless, its maintenance is practically null and its duration undefined

In addition, the filter of the invention can incorporate  a static mixer, for coagulants and disinfectants, also built in stainless steel, for when a flocculation and previous decantation.

Depending on the flow you want to filter, one or more assemblies can be installed as shown in the drawings arranged in battery, or make a specific design for the necessary flow.

Although in the example represented in the drawings in the upper mouth 8 of the filter chambers has been arranged a three way valve 9 as a means to select the circulation in the filtering or washing operation, the same effect could be achieved with other means of selection, for example by pairs of straight pass valves.

Claims (1)

1. Water filter, characterized in that it is constituted by a series of independent filter chambers and a common collection chamber, whose filter chambers contain a filter bed and have an upper mouth to which it is connected by one or more bypass selector valves a water supply line to be filtered and an overflow line, and communicate with the collecting chamber through one or more openings; and whose collection chamber has a filtered water outlet with a passage valve; keeping the flow selector valves the communication between the water supply line to be filtered and the corresponding filtering chambers and the passage valve of the filtered water outlet of the collecting chamber open, during the filtering process, while said the outlet valve of the filtered water outlet closes totally or partially and the selector valve of the upper mouth of one of the filter chambers communicates said filter chamber with the overflow conduit, for washing the filter bed of said camera.