Claims:CLAIMS
I/We claim,
1. A digital dosing apparatus for constant and automatic preparation of diluted chemical, comprising:
at least one dilution tank to prepare a diluted chemical by receiving a feed water and a concentrated chemical;
at least one feed chemical tank configured to store and feed concentrated chemical into the dilution tank;
at least one primary pump mounted between the dilution tank and a water source and configured to feed water into the dilution tank;
at least one secondary pump mounted between the dilution tank and the feed chemical tank and configured to feed concentrated chemical into the dilution tank;
at least one lower level sensor configured within the dilution tank to send signal and notify when the level in the dilution tank goes below a lower limit;
at least one upper level sensor configured within the dilution tank to send signal and notify when the level in the dilution tank goes above an upper limit; and
an electronic and control unit that is configured to receive signal from at least one lower level sensor and at least one upper level sensor and accordingly activate or deactivate the primary and the secondary pump causing activation or deactivation of feeding of the water and the concentrated chemical within the dilution tank.

2. The digital dosing apparatus of claim 1, wherein the electronic and control unit automatically activates at least one primary pump and secondary pump to feed water and concentrated chemical respectively into at least one dilution tank when receives lower level signal from at least one lower level sensor of at least one dilution tank.

3. The digital dosing apparatus of claim 1, wherein the electronic and control unit automatically de-activates at least one primary pump to stop the feed water when receives upper level signal from at least one upper level sensor of at least one dilution tank.

4. The digital dosing apparatus of claim 1, wherein the electronic and control unit is further comprising a display and at least one manipulation button to allows user to pre-define a feed amount of the concentrated chemical and hence mixing ratio of the water and the concentrated chemical in at least one dilution tank.

5. The digital dosing apparatus of claim 1, wherein at least one feed chemical tank is further comprising a lower level sensor that is configured to detect and notify about the lower level of the concentrated chemical in at least one feed chemical tank to the electronic and control unit.

6. The digital dosing apparatus of claim 1, wherein the electronic and control unit is further comprising any of a bells, sirens, flashing or alarming lights to aware a user about lower level of concentrated chemical within at least one feed chemical tank and to prevent the dry running of the digital dosing apparatus.

7. The digital dosing apparatus of claim 1, wherein the digital dosing apparatus is further comprising of a solenoid valve mounted between at least one primary pump and at least one dilution tank and configured to prevent dry running of the digital dosing apparatus.

8. A method of working of the digital dosing apparatus for constant and automatic preparation of diluted chemical, comprising steps of:
allowing a user to pre-set the feed amount of concentrated chemical using at least one manipulation button;
receiving signal from at least one lower level sensor of at least one dilution tank and activating at least one primary and at least one secondary pump by the electronic and control unit to feed respectively water and concentrated chemical into at least one dilution tank;

receiving signal from at least one upper level sensor of at least one dilution tank and de-activating at one primary and at least one secondary pump by the electronic and control unit to prevent more feeding into at least one dilution tank;
allowing the user to use the diluted chemical of at least one dilution tank and repeating the above process when the level within at least one dilution tank again reaches lower level; and
alarming user to feed concentrated chemical into at least one feed chemical tank to prevent dry running of the digital dosing apparatus when the level within at least one feed chemical tank goes below the lower limit.

9. The method of working of the digital dosing apparatus of claim 8, further includes step of shutting down the working of the digital dosing apparatus to prevent dry running of the digital dosing apparatus when the level within at least one feed chemical tank goes below the lower limit.

Dated this 2nd day of January 2020
, Description:
FORM 2
THE PATENTS ACT, 1970
(39 OF 1970)
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See section 10; rule 13)

1. Title of the invention – A DIGITAL DOSING APPARATUS

2. Applicant(s)
(a) NAME : ORG ENGITECH LTD

(b) NATIONALITY: INDIAN

(c) ADDRESS: 1009/P, B/h Kashi Pack care, Opp Techflow, Kubadthal, Kathwada-Singarva, Ahmedabad-382340, Gujarat

3. PREAMBLE TO THE DESCRIPTION

The following specification particularly describes the invention and the manner in which it is to be performed.

FIELD OF THE INVENTION

The present invention related to an automatic digital dosing system and apparatus. More particularly, it relates to the automatic dosing system for automatic dilution of concentrated chemical by constant dosing of concentrated chemical and water into the dilution tank automatically.

DESCRIPTION OF THE RELATED ART

Online chemical dosing is very common need of many industries like Water treatment and purification, cooling towers, boilers etc. To save transportation cost, most of the chemical suppliers produces highly concentrated chemicals which is required to be diluted before use. But the process of dilution and dosing is still being done manually, where the person feeds water and concentrated chemical as per the dilution ratio into the tank and then starts to suck diluted chemical by dosing pump to dosing system. When the tank gets empty, the person again manually feeds water and chemical into the tank.

Due to this manual operation, it is very difficult to maintain proper mixing ratio at particular time. In some cases, user also uses larger sized dosing tanks to make large quantity of diluted chemicals to prevent frequent manual mixing of water and concentrated chemical to prepare diluted chemical. But, in some of these cases, the self-life of the diluted chemical gets over due to storage of longer period of time causing bacterial growth in the diluted chemicals or separation of chemical and water due to long time storage and due to different densities of water and chemical. Thus, most of the chemical manufacturer suggests to use the diluted chemical within 24 hours of preparation. But, there is not any system or apparatus present that automatically prepares diluted chemical automatically when the amount of diluted chemical in the tank goes below some specific level preventing the manual preparation as well as preparation of large amount of diluted chemical.

Therefore, there exists a need of a dosing apparatus that may automatically monitor level of diluted chemical within the tank and prepare more if the level goes below some specific lower level within the tank. Further, there exists a need of a dosing apparatus that may allow user to pre-define and manipulate the mixing ration of water with concentrated chemical while preparing diluted chemical based on diluted chemical concentration requirement. Moreover, there exists a need of a digital dosing apparatus that may eliminate manual operation and save manpower for preparing diluted chemical by mixing concentrated chemical with water.

Inventors of present invention have surprisingly found and end up with a dosing apparatus to solve the problems exists through automatic digital dosing apparatus and system as described herein.

SUMMARY AND OBJECT OF THE INVENTION

This summary is provided to introduce a selection of concepts in a simplified form that are further disclosed in the detailed description of the invention. This summary is not intended to identify key or essential inventive concepts of the claimed subject matter, nor is it intended for determining the scope of the claimed subject matter.

The principal object of present invention is to overcome the abovementioned limitations by providing a digital dosing apparatus and system that automatically determines the level of existing diluted chemical and prepares new diluted chemical when the level of existing chemical goes below some specific level of the tank.

Another object of present invention is to provide a digital dosing apparatus that automatically prepare diluted chemical eliminating the need of dedicated person for this operation.

One another object of present invention is to provide a digital dosing apparatus that allows user to select the feed amount or concentration of chemical thus control the concentration of diluted chemical.

One more object of present invention is to provide a digital dosing apparatus that is automatic and very accurate causing saving of the concentrated chemical.

Yet one another object of invention is to provide a digital dosing apparatus that mixes the concentrated chemical and water into the dilution tank and prepares a dilution chemical of predefined concentration.

Yet another object of present invention is to provide a digital dosing apparatus that starts the feeding of concentrated chemical and water into the dilution tank when the level of diluted chemical within the dilution tank goes below the lower level.

Yet another object of present invention is to provide a digital dosing apparatus that stops water feeding when the level of mixture crosses upper level limit of the dilution tank.

Yet another object of present invention is to provide a digital dosing apparatus that allows the user to control the concentration of diluted chemical by selecting and controlling feed amount of concentrated chemical into the dilution tank from the feed chemical tank.

Yet another object of present invention is to provide a digital dosing apparatus that comprises a lower level sensor into the feed chemical tank, wherein the lower level sensor is configured to send alarming signal when the level of concentrated chemical within the feed chemical tank goes below the lower level thus preventing dry running of present dosing apparatus.

BRIEF DESCRIPTION OF DRAWINGS
The foregoing summary, as well as the following detailed description of the invention, is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, exemplary constructions of the invention are shown in the drawings. However, the invention is not limited to the specific methods and structures disclosed herein. The description of a method step or a structure referenced by a numeral in a drawing is applicable to the description of that method step or structure shown by that same numeral in any subsequent drawing herein.

Figure 1 exemplarily illustrates schematic diagram of automatic dosing and chemical dilution apparatus of present invention.

Figure 2 exemplarily illustrates schematic of electronic and control unit of present digital dosing apparatus connected with other units of apparatus through wires.

Figure 3 exemplarily illustrates view of a complete digital dosing apparatus of present invention according to one embodiment.

DETAILED DESCRIPTION OF INVENTION

The present invention overcomes the aforesaid drawbacks of the above, and other objects, features and advantages of the present invention will now be described in greater detail. Also, the following description includes various specific details and are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that: without departing from the scope and spirit of the present disclosure and its various embodiments there may be any number of changes and modifications described herein.

The automatic digital dosing apparatus and system for automatically and constantly dilute the concentrated chemicals is disclosed.

According to an embodiment, the automatic digital dosing apparatus of present invention is provided to automatically receive and mix the concentrated chemical with the water to prepare a diluted chemical when the level of diluted chemical within the tank reached lower level. The digital dosing apparatus of present invention allows user to pre-set the mixing ratio of concentrated chemical to water.

According to an embodiment, the digital dosing apparatus of present invention monitors the level of diluted chemical present within the dilution tank of the apparatus, when the level reaches below the lower tank level, the apparatus automatically starts and obtains concentrated chemical from concentrated chemical chamber and water from the water source in a ratio pre-defined by the user until the level of these combination within the dilution tank reaches to the higher level of the tank. The digital dosing system repeats this cycle of dilution continuously and automatically.

Referring to Figure 1 that exemplarily illustrates schematic diagram of digital dosing apparatus and system of present invention. According to an embodiment, the digital dosing apparatus of present invention is comprising of: a dilution tank 3 that receives concentrated chemical and water in pre-defined ration, mixes the combination and accordingly prepares diluted chemical of predefined concentration; a set of upper and lower level sensors (6 & 7) within the internal body of the dilution tank 3 to monitor the lower and higher level of diluted chemical within the dilution tank 3; concentrated feed chemical tank 5 to dispense the concentrated chemical within the dilution chamber 3 when the level of mixture within the dilution tank 3 goes below the lower level. The digital dosing apparatus of present invention is further comprising of a primary pump 1 between water source and dilution tank 3 that feeds the water into the dilution tank 3 when the level of mixture within the dilution tank goes below the lower level. Further, the digital dosing apparatus of present invention further comprising of a secondary pump 4 between the dilution tank 3 and concentrated chemical tank 5 to feed the pre-set amount of concentrated chemical within the dilution tank 3 when the level within the dilution tank goes below the lower level.

According to an embodiment, the level monitoring sensors (6 & 7) are configured to monitor the level within the dilution tank 3 and notify the control unit if the level goes beyond this upper and lower limit set by these level sensors (6 & 7), wherein the lower level sensor 7 notifies the control unit when the level of mixture within the dilution tank 3 goes below the lower level causing the control unit to start the primary pump 1 and secondary pump 4 to respectively feed water and pre-set amount of concentrated chemical within the dilution tank 3. While, the upper level sensor 6 is configured to monitor and notify the control unit when the level of feed within the dilution tank goes beyond the upper level, causing the control unit to stop the water feeding into the dilution tank 3 by stopping the primary pump 1.

According to an embodiment, the digital dosing apparatus of present invention is further comprising of a solenoid valve 2 mounted between primary pump 1 and a dilution tank 3 that is configured to provide excess safety and prevent excess feeding of water into the dilution chamber from the water source. The solenoid valve 2 opens when the lower level sensor 7 sends signal of lower level within the dilution tank 3 while closes when the upper level sensor 6 sends signal to the control unit, preventing feed of more water into the dilution tank 3 even if the primary pump 1 is working by any error/problem within the digital dosing apparatus of present invention.

According to an embodiment, the feed chemical tank 5 of present dosing apparatus is further comprising of a chemical tank lower level sensor 8 which is configured to monitor the level of concentrated chemical within the chemical feed tank 5 and gives alarming signals to the user whenever the level of concentrated chemical goes below the lower level of the feed chemical tank 5. This allows the user to fill the concentrated chemical in the chemical feed tank 5 preventing the dry running of the present dosing apparatus.

Referring to Figure 2 now which exemplarily illustrates schematic of electronic and control unit 9 which is connected with other units of present digital dosing apparatus through wires. The electronic and control unit 9 of present dosing apparatus receives signals from level sensors (6&7) of dilution tank 5 and from lower level sensor 8 of chemical feed tank 5 and according to level of mixture within the dilution tank 3 and concentrated chemical within the feed chemical tank 5, activates/deactivates the primary and secondary pump (1&4) or sends alarming signal to the user respectively.

According to an embodiment, the digital dosing apparatus of present invention is further comprising of alarm lights 11 that is configured to alert the user by glowing or blinking whenever the level of concentrated chemical within the feed chemical tank 5 goes below the lower limit. According to an embodiment, the digital dosing apparatus of present invention may comprise other alerting devices such as, but not limited to, bells, sirens, flashing lights of red or various colours for alarming purpose. The electronic and control unit 9 of present invention further comprises a power source 10 which may be any of rechargeable battery to provide power for working of electronic and control unit 10. The electronic and control unit further comprises a digital controller that receives electronic signal from sensors of the apparatus and accordingly activates or deactivates pumps and valves of the apparatus to control the un-interrupted working of the dosing apparatus of present invention.

According to an embodiment, the electronic and control unit 9 of present invention is further comprising of a display unit and a control buttons to allow the user to pre-set the feed amount of concentrated chemical based on the final concentration requirement of the diluted chemical by the user. The digital dosing apparatus of present invention allows only control of feed amount of concentrated chemical while feed of water is controlled automatically when the level within the dilution tank 3 reaches upper level. Hence, the apparatus or system allows user to define the ratio of water and chemical by controlling the feed amount of concentrated chemical only.

Figure 3 exemplarily illustrates complete view of the present digital dosing system in one complete embodiment where the dilution tank 3 and chemical feed tank 5 are placed next to each other and connected through the chemical feed pump or secondary pump 4.

Without further description, it is believed that one of ordinary skill in the art can, using the preceding description and the illustrative examples, make and utilize the present invention and practice the claimed methods. It should be understood that the foregoing discussion and examples merely present a detailed description of certain preferred embodiments. It will be apparent to those of ordinary skill in the art that various modifications and equivalents can be made without departing from the spirit and scope of the invention.

Reference Numerals:
1. Pump (For Water)
2. Solenoid Valve
3. Dilution Tank
4. Pump (For Chemical)
5. Feed Chemical Tank
6. Higher Level Sensor for Dilution Tank
7. Lower Level Sensor for Dilution Tank
8. Lower level sensor for Chemical Tank
9. Electronic and Control unit
10. Power supply
11. Alert Lights