CLIAMS:1. A de-scaling device for removal of scales in a water purification apparatus comprising a water inlet valve, a de-scaling feed tank, a water outlet valve and a re-circulating water inlet valve, wherein the water inlet valve and the re-circulating water inlet valve are connected to the de-scaling feed tank
2. The de-scaling device as claimed in claim 1, wherein the water inlet valve is connected to a water source.
3. The de-scaling device as claimed in claim 1, wherein the water outlet valve is connected to the purification system of said water purification apparatus
4. The de-scaling device as claimed in claim 1, wherein the re-circulating valve is connected to the reject valve of the purification system
5. The purification system as disclosed in claims 3 and 4, is a sediment filter and/or carbon block filter and/or chemical block filter and/or a membrane filter
6. The de-scaling feed tank as claimed in claim 1, comprises a de-scaling composition of organic acids.
7. The de-scaling composition as claimed in claim 6, is in the form of pellets, tablets or the like for slow dissolution in water.
8. A method for cleaning and removal of scales and deposits from a water purification apparatus using a said de-scaling device comprising,
a) Connecting a water inlet valve of the de-scaling device to a water source
b) Connecting a water outlet of the de-scaling device to the pre-treatment and/or filtration system of a water purification apparatus
c) Connecting a re-circulation water valve of the de-scaling device to the reject water valve of said water purification apparatus
d) Circulating the water from the water inlet to the pre-treatment and/or filtration system and re-circulating the water from the reject water to the feed tank comprising the de-scaling composition via the re-circulating water valve.
e) Continuing step (d) until such time, the water in the feed tank becomes turbid or turn milky with the scales and deposits
f) detaching the de-scaling device and flushing the feed tank with the turbid water containing the scales and deposits removed from the purification apparatus. ,TagSPECI:TITLE OF THE INVENTION
“De-scaling and Chemical Cleaning Device”
FIELD OF THE INVENTION
The present invention relates to a device for de-scaling for use in water purification system, more particularly to a detachable de-scaling device to remove deposits and other contaminants in the water treatment apparatus for efficient water purification.
OBJECTIVE OF THE INVENTION
It is an objective of the present invention, to provide a new and improved de-scaling device comprising de-scaling composition that can be attached to existing water purification device to improve the performance of purification device.
It is yet another objective of the invention to provide a simple method for cleaning of membranes, more particularly in water purification apparatus to provide effective ad quality water for consumption.
It is yet another important embodiment to a simple and effective method and device for increasing the life of water purification apparatus for use in commercial and industrial applications.
RELEVANT PRIOR ART OF THE INVENTION
Water purification is a process of removing undesirable contents such as chemicals, biological contaminants, suspended solids and gases and so on from water, so as to make water suitable for drinking purpose. The use of home water treatment systems to treat tap water continues to grow because of heightened public awareness of the health concerns associated with the consumption of untreated tap water. Household water treatment systems have gained widespread popularity, particularly in areas with less-than-ideal potable water. A household system or unit is mounted on a single tap to selectively treat water flowing through the tap.
Various water purification systems employ purification technologies such as chemical, physical and membrane based purification system. Water composition varies depending on the various sources from which it is obtained. Calcium and magnesium ions are prevalently present in the water, and these ions reacts with the water molecules, to form generate intolerable substances that lead to the formation of scales. Generated on the surface of hard water scales mainly consist of calcium and magnesium ions, carbonate, sulfate and other components. These scales are found to be deposited on the purification membranes. Continuous deposits of the scales in the membrane lead to decreased efficiency of water purification and over time lead to failure of the membrane.
Additionally, the scales may also deposit in the water pipes and channels in which the water flows. Circulating water in the purification apparatus leads to clogged pipes pathway, affecting water supply and purification efficiency. Formation of scales, not only leads to deposits that plug the pipe, but also plays a role in reducing the fluid flow area, increasing system power consumption, shortened equipment life and also cause microbial flourish, leading to corrosion of the material. Therefore, effectively control of scale formation is essential for the safe operation of such water purification technologies.
Current technologies involve both chemical and physical methods for de-scaling. Chemical methods include use of water softeners, scale inhibitor ions, calcium carbonate crystals such that they form complexes that can be removed out. However, these technologies are not advantageous when used in water purification device, as they defeat the purpose of consumption and may involve additional risks. Physical de-scaling methods include treatment with magnetic technology, electrostatic water treatment technology, impulse radio and use of ultrasonic waves. The principle is to keep the circulating water in a state of dynamic movement, such that the ions do not settle in the membranes or any other supply pipes. This technology although advantageous, is not useful for use in water purification system and this increases the operation cost and consumption of energy for operating the physical apparatus used for the same.
Also, one another disadvantage, that the current technology faces, is that there is no a de-scaling device that can be used as a detachable means to any water purification apparatus. Hence, there still exists a need in the art to provide a de-scaling and cleaning device for use in a water purification apparatus that removes deposits of scales and is used in a detachable means for simple and effective de-scaling operation. The de-scaling device and method of the present invention, provides cleaning mechanism that is simple and can be used in all existing water purification technology and that is cost effective in its operation.

ABSTRACT OF THE INVENTION
The present invention relates to a de-scaling device for use in the field of water treatment for efficient cleaning and functioning of purification apparatus. The said de-scaling device comprises a water inlet valve, a de-scaling feed tank, a water outlet valve and a re-circulating inlet valve. The said de-scaling device forma a detachable means and is connected between the water source and the sediment filter of the water purification apparatus. The said device is reversible connected such that the water from the source flows through the de-scaling feed tank and is allowed to remove the scaling deposits formed in the purification apparatus. Furthermore, the water from the reject valve along with the de-scaling composition is allowed to re-circulate via the re-circulating inlet valve. The de-scaling method and device of the present invention, provide a simple method for cleaning of membranes, more particularly in water purification apparatus to provide effective ad quality water for consumption

BRIEF DESCRIPTION OF THE DRAWINGS
The embodiments herein will be better understood from the following detailed description with reference to the drawings, in which:
FIG. 1 illustrates a general block diagram of a detachable de-scaling device, as disclosed in the embodiments herein;
FIG.2 illustrates a general block diagram of a de-scaling device working mechanism in combination with a water purification technology, as disclosed in the embodiments herein

DETAILED SPECIFICATION OF THE INVENTION
The present invention relates to a method and device of de-scaling for use in a water purification apparatus. The said device provides efficient removal of scales and other contaminants that is deposited in the water purification apparatus.
In one embodiment, the de-scaling device of the present invention comprises a water inlet valve, a de-scaling feed tank, a water outlet valve and a re-circulating inlet valve. The said water inlet valve and the re-circulating water inlet valve are connected to the de-scaling feed tank. The said de-scaling device is connected to a water purification device such that the water along with the de-scaling composition is used to remove scales in the water purification apparatus.
In one embedment, the de-scaling device is connected to the water purification apparatus, wherein the water inlet valve is connected to the water source, followed by connecting the water outlet valve to the inlet of the purification apparatus and connecting the reject water valve to the re-circulating water valve.
In one embodiment, the water inlet valve provides water from the source to flow through the de-scaling device, such that water enters to the de-scaling feed tank and passes out through the water outlet valve.
In one another embodiment, the de-scaling feed tank is a transparent tank comprising a composition of organic acid provide in the form of pellets, tablets such that the organic acids are released by dissolution in the water that passes through the feed tank. The organic acids present in the de-scaling feed tank is citric acid, and/or tartaric, and/or oxalic acid and/or a combination of the like.
The water from the water inlet source, while passing through the de-scaling feed tank mixes with the organic acid composition, such that it forms dilute concentration of the organic acids. The said water with the organic acid passes through the water outlet valve, which is connected to the sediment filter of the said water purification apparatus.
In one embodiment, the water with the organic acid passed through the sediment filter, chemi block or the like and is allowed to be passed through the membrane purification unit. In the membrane purification unit, water with the organic acid is purified and purified water is sent to the storage tank. The rejected water comprising the organic acid is rejected via the reject valve. The rejected water, comprising the organic acid dissolves any scales deposited in the membrane.
In one embodiment, the water from the reject water along with the removed scales is allowed to enter through the re-circulating water valve and re-enters into the de-scaling feed tank. This water and is sent out via the water outlet valve, such that the water with the organic acid composition is continuously circulated to remove all scales deposited in the water purification apparatus.
In one embodiment, de-scaling device of the present invention wherein the feed tank is transparent provides indication of re-circulating water. When the water with organic acid enters into the water purification apparatus is visually clear and as it is re-circulated, the turbidity of the water increases due to the dissolved scales. The de-scaling water starts to turn milky and turbid indicating efficient removal of all deposits in the sediment filter, carbon filer and/or chemi block or the like.
In one embodiment, the de-scaling device of the present invention is configured with the water purification apparatus, especially when used in large industrial applications, and the feed tank can be filled in regular intervals to indicate a de-scaling process.
In another embodiment, the de-scaling device of the present invention can be used as a detachable device such that the device can be connected to the water purification apparatus for removal of scales and deposits.
In one embodiment, the de-scaling, cleaning and maintenance procedures as disclosed in the present invention is accomplished while the water purification apparatus remains in operation
In one embodiment, the present invention provides a method for de-scaling via said de-scaling device comprising,
a) Connecting a water inlet valve of the de-scaling device to a water source
b) Connecting a water outlet of the de-scaling device to the pre-treatment and/or filtration system of a water purification apparatus
c) Connecting a re-circulation water valve of the de-scaling device to the reject water valve of said water purification apparatus
d) Circulating the water from the water inlet to the pre-treatment and/or filtration system re-circulating the water from the reject water to the feed tank via the re-circulating water valve.
e) Continuing re-circulation of de-scaling composition until such time, the water in the feed tank becomes turbid or turn milky with the scales and deposits
f) detaching the de-scaling device and flushing the feed tank with the turbid water containing the scales and deposits removed from the purification apparatus