MXPA98000702A - Device and method for the reduction of water from an outlet pipe in connection with a purifier of a - Google Patents

Abstract

The present invention relates to a device for the re-suction of water from an outlet pipe (18) of a water purifier (10), the water is subjected to pressure being fed to such a purifier, the device according to the present invention includes an ejector (26) arranged to cooperate with an outlet conduit (14) for water, such cooperation is effected before the outlet conduit (14) is transferred in the outlet pipe (18). In water purifiers that have a simple design, water is forced through the filters by pressure in the water distribution system. The problem with this is that the water continues to drip even after the pressure in the water distribution system has closed. According to the present invention, this problem is solved by having an ejector (26) to cooperate with a hose / duct (20) having an open end towards the atmosphere, such hose / duct serves as a reservoir of a certain volume that it is used for the re-suction of water that is present in the piping (18) of

Description

DEVICE AND METHOD FOR WATER RESUSCITATION FROM A PIPE OUTLET IN CONNECTION WITH A WATER PURIFIER The present invention relates to a device for re-suctioning water from an outlet pipe of a water purifier, the water subjected to pressure being fed to said purifier. The device according to the present invention includes an ejector arranged to cooperate with an outlet conduit for water, such cooperation is carried out before the outlet conduit is transferred into the outlet pipe. The invention also relates to a method for effecting re-suction from the outlet pipe. In water purifiers that have a simple design, ie purifiers that include carbon filters, particulate filters, ultraviolet light devices, etc., water is forced through the filters by pressure in the system. water distribution. The problem with this is that the water continues to drip even after the pressure in the water distribution system has been closed. Apart from the fact that a dripping outlet pipe causes irritation it can also develop bacterial growth in the outlet duct between the ultraviolet light device and the outlet pipe. In water purifiers of the present type it was previously known to be used as an ejector which is activated by the flow of water through the water purifier. This ejector is connected to a sealed pressure cell, the pressure in such a cell being diminished when the water flows through the ejector. When the water flow subsequently closes, the negative pressure in the cell will suck the water from the outlet pipe. However, this design includes various work pieces and a high precision ejector is also necessary. The object of the present invention is to present a device in connection with water purifiers of the aforementioned type wherein the dripping of the outlet pipe is eliminated in an extremely simple manner using simple components in combination with an ejector. Simultaneously the device functions as a pressure relief valve if the outlet pipe becomes clogged. The object of the invention is realized by means of a device to which the characteristics of the appended claims have been given. Hereinafter, an embodiment of the invention will be described, with reference to the appended figures, wherein Figure 1 shows a schematic drawing of a water purifier that is equipped with a device according to the present invention; and Figure 2 shows a detail of the ejector according to the present invention and the components cooperating with such an ejector. The water purifier 10, described schematically in Figure 1, includes a filter 12, an outlet duct 14 leaving the filter 12, an ultraviolet light device 16, the outlet duct 14 passing through the ultraviolet light device 16 and ends in an exit pipe 18. The water purifier also includes a "storage space" 20 which in principle only consists of a hose / duct, which functions as a "storage space". Such hose / duct 20 has one end connected to the filter 12 and the other end open to the atmosphere. In order to provide the correct volume space, the hose / duct 20 is helically wound and located at a level of preference directly below the outlet end of the outlet pipe 18. More generally, the conditions that must be met is that the highest point of the active portion of the "reservoir space" 20 is located at a lower level than the highest point of the exit conduit 14. In the described embodiment, the horizontal portion of the outlet duct 14, directly adjacent to the outlet pipe 18, constitutes the highest point 15. The term "active portion" is to be understood as the portion of the "reservoir space" 20 within which the water level varies in the operation of the water purifier, that is, there may be an inactive portion of the deposit space that is located above the highest point 15 of the outlet conduit. The filter 12 is usually a carbon filter or a particulate filter. The water purifier 10 according to Figure 1 is preferably connected to the water distribution system through an inlet duct 22 which is provided with a valve 24 for activating / closing the pressure in the water distribution system. From the details described in Figure 2 of the outlet end of the filter 12 it can be learned that an ejector 26 is disposed in connection with the outlet opening 28 for the filtered water. The outlet duct 14 is through a first jacket 30 connected to the outlet opening 28. The ejector 26 and the outlet opening 28 communicate with an additional opening 32 and the hose / conduit 20 is through a second jacket 34 connected to the additional opening 32. This means that the outlet duct 14 and the hose / duct 20 function as communication vessels, that is, the water levels in the outlet duct 14 and the hose / duct 20 are located in equilibrium positions with respect to each other. This usually means that in such a state of equilibrium, the water level in the outlet duct 14 is located within the ultraviolet light device and the water level in the hose / duct 20 is located in the helical portion. The water purifier 10 with the described ejector arrangement operates in the following manner. Water from the water distribution system is fed to the filter 12 through the inlet duct 22, see arrow 1 7 in Figure 1, when the valve 24 is opened. After filtration, the water flows in the direction of the arrow 25 and is discharged through the ejector 26 and the outlet opening 28. By the action of the ejector the water is sucked from the hose / duct 20 and this means that the water level in the hose / duct 20 descends, see arrow 21 in Figure 1. Water sucked out of the hose / duct 20 it is discharged through the outlet opening 28 where it is mixed with the water coming from the filter 12, such mixed water is transported through the outlet conduit 14 and passes through the ultraviolet light device 16 where it is carried out the sterilization of water in a previously known form, ie the water is irradiated with ultraviolet light in order to achieve the desired purification of the water. To exemplify how an ultraviolet light device of the present type is designed, reference is made to SE-A-9501467-6. After sterilization, the water flows out through the outlet pipe 18, see arrow 19. If a sufficient amount of water is discharged through the outlet opening 28, through the ejector 26, the hose / duct 20 will be emptied of water. Upon closing the valve 24, the water supply, through the inlet duct 22, is stopped and the equilibrium state for the water levels in the outlet duct 14 and the hose / duct 20 will occur again. The water will rise in the hose / duct 20, see arrow 23 in Figure 1, at a certain level and consequently the water in the outlet pipe will be sucked back, preferably along the entire length of the vertical portion of the duct 14. of output in Figure 1. Because no water remains in the outlet pipe 18 consequently there will be no dripping or no second outlet when the water supply through the inlet duct 23 is closed. If for some reason, for example due to lime deposits, the outlet pipe 18 obstructs the "reservoir space" V hose / duct 20 functions as a pressure relief valve as it opens into the atmosphere and consequently can be discharged to through the "tank space" V hose / duct 20 if the outlet pipe 18 becomes blocked. This is a significant advantage involved with the device according to the present invention.

Although the above invention is described in connection with a water purifier that includes a filter in combination with an ultraviolet light device, the invention is in no way restricted to such an application, but the invention can also be used in connection with other types of water purifiers where resuscitation is desired to prevent dripping of the outlet pipes 18 when the water supply through the inlet duct 22 is closed.

Claims (5)

CLAIMING IS

1 . A device for re-suctioning water from an outlet pipe of a water purifier, the water is pressurized by being fed to such a purifier, the device according to the present invention includes an ejector arranged to cooperate with a water conduit. outlet for the water, such cooperation takes place before the outlet duct is transferred into the outlet pipe, characterized in that the device includes a space in connection on one side with the ejector and the outlet duct, and on the other with the atmosphere, a higher point of the active portion of such space being located at a lower level than the highest point of the outlet duct, the ejector is disposed at the outlet end of a filter, the water that is going to be The purified passage passes through such a filter, the outlet duct is connected to such outlet end, and the space is connected to the ejector in the area of the outlet end of the filter.

2. The device according to claim 1, characterized in that the space consists of a hose / duct having one end in connection with the ejector and the outlet duct while the other end is open towards the atmosphere.

3. The device according to claim 2, characterized in that the hose / duct is at least partially wound helically.

4. The device according to claim 2, characterized in that the hose / duct is wound helically and located at a level directly below the highest point of the outlet duct.

5. A method for effecting the re-suction of water from a device for the re-suction of water from an outlet pipe of a water purifier, such device according to the present invention includes an ejector arranged to cooperate with an outlet conduit for water, the method comprising the step of feeding the water under pressure to such purifier, such cooperation is carried out before the water conduit is transferred to the outlet pipe, characterized in that the device includes a space that is in connection on the one hand with the ejector and the outlet duct, and on the other with the atmosphere, a higher point of the active portion of the space being located at a lower level than the highest point of the outlet duct, the ejector is disposed at the outlet end of a filter, the outlet conduit is connected to such outlet end, the space is connected to the ejector in the area of the outlet end of the filter, the method comprising the steps of: purifying the water through the filter, which is carried out in connection with the water supply to the outlet pipe, through the action of the ejector, the water is sucked from the space, when the When the water to the outlet pipe is interrupted, the water flows back into the space that is located at the level lower than that of the free end of the outlet pipe, and such a return flow of the water creates the suction of the water in the outlet pipe until a state of equilibrium occurs between the water level in the area of the outlet pipe and the water level in the space.