RU199239U1 - THREE-STAGE FLOWING AQUAVENDING APPARATUS - Google Patents

Abstract

The utility model relates to flow-through aquavending devices, i.e. to vending machines for the sale of water taken from the water supply network, which has undergone two-stage purification using reverse osmosis and the delivery of purified water to the container of the water consumer without its (water) intermediate accumulation. The technical problem is the need to significantly increase the permeate yield factor in the process of reverse osmosis water purification, which will increase the efficiency of using water from the water supply network, reduce the requirements for the pump, and also not use the buffer accumulation of permeate. The technical result consists in a significant increase in the permeate yield factor in the process of reverse osmosis water purification due to multistage series-parallel reverse osmosis (sequential in concentrate, parallel in permeate), which makes it possible to significantly reduce the volume of water (concentrate) discharged into the sewage system and thereby increase efficiency the use of water from the water supply system, as well as to abandon the use of a buffer tank for permeate in the design of the apparatus and thereby significantly reduce the weight of the apparatus and reduce the requirements for the pump. A three-stage flow-through aqua vending apparatus contains a pre-water purification module 1, a pump 2, a reverse osmosis main membrane module 3 with a permeate outlet 4 and a concentrate outlet 5, the first additional reverse osmosis membrane module 6 with a permeate outlet 7 and a concentrate outlet 8, the second additional membrane module 9 reverse osmosis with a permeate outlet 10 and a concentrate outlet 11, drainage pipeline 12, mixer 13 of permeate flows, module 14 for ultraviolet disinfection of water, module 15 for dispensing water into the container of the water consumer. 1 ill.

Description

The technical field to which the utility model belongs

The utility model relates to flow-through aquavending devices, i.e. to vending machines for drinking water taken from the water supply network, which has undergone multistage purification using reverse osmosis and the delivery of purified water to the container of the water consumer without its (water) intermediate accumulation.

State of the art

Known machine for retail sale of water, containing a housing and installed in the housing hydraulically interconnected water pre-purification module, a reverse osmosis membrane module, a pump for creating pressure at the inlet of this membrane module, a storage tank for purified water, a module for dispensing water into a container of a water consumer ... The machine also contains a control module and an associated user interface for controlling the process of dispensing water into the container of a water consumer (see the description of the invention to patent RU No. 2495496 C2, IPC G07F7 / 02, C02F9 / 00, publ. 27.08.2012 Bull. No. 24 ).

The features of the known automaton, common with the features of the claimed technical solution, are that it contains a housing and a pre-purification water module installed in the housing, a reverse osmosis membrane module, a pump for creating pressure at the inlet of this membrane module, a module for dispensing water into a container of a water consumer , a control module and a user interface for controlling the process of dispensing water into a container of a water consumer.

The reason preventing the technical result obtained in the known machine, which is provided by the technical solution claimed for patenting, is the use of a single-stage reverse osmosis water purification, as a result of which, due to the low permeate yield factor inherent in the reverse osmosis membrane, the use of a storage tank is required to create a buffer reserve of permeate.

Known machine for obtaining purified drinking water (prototype), which consists of a sequentially installed module for carbon filtration of incoming water (in our text: "a preliminary water purification module, made with the possibility of hydraulic connection of its inlet to the water supply network"), a high-pressure pump, a module reverse osmosis membrane water purification (in our text: "membrane module of reverse osmosis"), module for carbon filtration of permeate, module for pH correction, module for ultraviolet disinfection of water, module for dispensing water into consumer containers (in our text: "module for dispensing water into containers of water consumer ") Connected by appropriate pipelines. The known machine also includes an antiscalant dosing module, a permeate hydroaccumulator, a permeate domineralization module, an electronic control unit for dosing and receiving payment when selling water (in our text: “a control module and an electrically connected user interface for controlling the process of dispensing water into a container of a water consumer "), An additional pipeline, through which a part of the initial concentrate from the reverse osmosis water treatment module is directed to the inlet of the high-pressure pump (description of the utility model to patent RU No. 139197 U1, IPC C02F 9/12, published: 10.04.2014 Bull. No. 10).

The features of the known machine (prototype), common with the features of the claimed technical solution, are that it contains a preliminary water purification module, made with the possibility of hydraulic connection of its input to the water supply network, a pump, the input of which is hydraulically connected to the output of the preliminary water purification module, a reverse osmosis membrane module, the inlet of which is hydraulically connected to the pump outlet, a drainage pipeline, a module for dispensing water into a container of a water consumer, as well as a control module and an electrically connected user interface for controlling the process of dispensing water into a container of a water consumer.

The reason that prevents the technical result obtained in the known machine (prototype), which is provided by the technical solution claimed for patenting, is the use of a one-stage reverse osmosis water purification with partial recycling of the concentrate, which does not provide an effective increase in the permeate yield factor.

The technical problem to be solved by the technical solution claimed for patent is the need to significantly increase the permeate yield in the process of reverse osmosis water purification, which will increase the efficiency of using water from the water supply network, reduce the requirements for the pump, and also not use the buffer accumulation of permeate.

Disclosure of the essence of the utility model

The technical result, which mediates the solution of this technical problem, consists in a significant increase in the permeate yield factor in the process of reverse osmosis water purification due to multistage series-parallel reverse osmosis (sequential in concentrate, parallel in permeate), which makes it possible to significantly reduce the volume of water discharged into the sewage system ( i.e. concentrate, which is a by-product of reverse osmosis) and thereby increase the efficiency of using water from the water supply system, as well as abandon the use of a buffer tank for permeate in the design of the apparatus and thereby significantly reduce the weight of the apparatus and reduce the requirements for the pump.

The technical result is achieved by the fact that the flow-through three-stage aqua vending apparatus contains a preliminary water purification module made with the possibility of hydraulically connecting its entrance to the water supply network, a pump, the inlet of which is hydraulically connected to the outlet of the preliminary water purification module, the main membrane reverse osmosis module, the inlet of which is hydraulically connected with a pump outlet, a drainage pipeline, a module for dispensing water into a container of a water consumer, a control module and an electrically connected user interface for controlling the process of dispensing water into a container for a water consumer, the first and second additional reverse osmosis membrane modules, as well as a mixer for permeate flows three inlets, hydraulically connected to the permeate outlets of the three mentioned membrane modules, and an outlet, hydraulically connected to the module for dispensing water into the container of the water consumer, while the inlet of the first additional reverse osmosis membrane module is hydraulically connected en with the concentrate outlet of the main reverse osmosis membrane module, the inlet of the second additional reverse osmosis membrane module is hydraulically connected to the concentrate outlet of the first additional reverse osmosis membrane module, and the concentrate outlet of the second additional reverse osmosis membrane module is hydraulically connected to the inlet of the drainage pipeline.

Brief Description of Drawings

In the accompanying FIG. a functional diagram of a three-stage flowing aqua vending apparatus is shown.

Implementation of the utility model

The three-stage flow-through aqua vending apparatus contains a module 1 for preliminary purification of water entering the input of this module from the water supply network during the operation of the apparatus, pump 2, the main membrane module 3 of reverse osmosis with a permeate outlet 4 and a concentrate outlet 5 (the first stage of reverse osmosis water purification), the first an additional membrane module 6 of reverse osmosis with a permeate outlet 7 and a concentrate outlet 8 (the second stage of reverse osmosis water purification), a second additional reverse osmosis membrane module 9 with a permeate outlet 10 and a concentrate outlet 11 (the third stage of reverse osmosis water purification), drainage pipeline 12, made with the possibility of connecting its outlet to the sewerage system, mixer 13 of permeate flows, forming the total permeate, module 14 for ultraviolet disinfection of water (total permeate), module 15 for dispensing water (total permeate) into the container of the water consumer, i.e. water filling chamber.

The device also contains a module for controlling the operation of the device, a user interface associated with this module for paying for water and randomly starting the process of dispensing water into the container of a water consumer, electrically controlled valves installed on the pipelines of the device between its modules in the appropriate places due to the task of said control, as well as modules correction of pH and dosed mineralization of the total permeate (not shown).

Module 1 is, for example, a carbon filter of incoming water or several series-connected filters of the "carbon-block" type or other filters in various combinations; Moreover, this module is made with the possibility of hydraulic connection of its inlet with the water supply network and is intended, first of all, for water purification from mechanical impurities, high-molecular organic substances and residual chlorine.

Pump 2 is a high-pressure pump, it provides an operating pressure of 0.5 to 1.5 MPa, which is required for water purification by the reverse osmosis method, and is connected to a power supply network with a voltage of 220 V. Pump 2 inlet is hydraulically (using the appropriate pipeline) connected to the output of module 1.

Each reverse osmosis membrane module of the group of modules 3, 6 and 9 can be of different design, but it is preferable to use a module consisting of a membrane holder and a membrane element of standard size "4040" or another. The use of a membrane element of the Filmtec XLE type as a membrane element of the membrane module 3, 6 and 9 ensures that each membrane module removes 99% of the impurities dissolved in it from the water being purified (entering the inlet of this module) at an operating pressure of 0.69 MPa and a water temperature of 25 ° FROM.

Membrane modules 3, 6 and 9 are hydraulically connected to each other in series in the concentrate and in parallel in the permeate, so that the membrane module 6 is hydraulically connected with its inlet (using a suitable pipeline) to the outlet 5 of the concentrate of the membrane module 3, the membrane module 9 is hydraulically connected with its inlet (with by means of a suitable pipeline) is connected to the concentrate outlet 8 of the membrane module 6, and its concentrate outlet 11 to the inlet of the drainage pipeline 12. In this case, the apparatus is equipped with a mixer 13 of permeate streams having three inlets, with which they are hydraulically (using appropriate pipelines) connected by their outlets 4, 7 and 10 permeate corresponding membrane modules 3, 6 and 9 (parallel connection of membrane modules 3, 6 and 9 by permeate).

Module 14 ultraviolet disinfection of water (total permeate) is an ultraviolet lamp enclosed in a cylindrical flask made of material that transmits ultraviolet light. In this case, this flask is located inside the pipeline and along this pipeline, through which the total permeate from the outlet of the mixer 13 enters the module 15 for dispensing water (total permeate) into the container of the water consumer.

The module 15 for dispensing water into a container of a water consumer is a box with an open side edge with or without a door. In the upper part of the box, a branch pipe is installed for direct delivery of water to the container of the water consumer, installed in the box.

The control module ensures that pump 2 is turned on at a certain time and for a certain period, necessary and sufficient for filling the container of the water consumer temporarily located in module 15 with purified water (total permeate). The volume of water supplied is determined by the water consumer by entering the corresponding task through the user interface , and the control module measures the volume of water set in this way using a water volume counter.

The functioning of the flow-through aquavending apparatus is as follows.

The consumer (buyer) of water installs his container for water (container, bottle) in the module 15 for dispensing water. In this case, the consumer makes a payment for water in one way or another (or the payment was made by him in advance), sets through the user interface the required volume of water delivery to the container of the water consumer and sends a command to the control module through this interface to supply water to the container of the water consumer. At this command, the control module opens the corresponding electrically controlled valves, turns on pump 2 and continuously monitors the volume of water delivered to the container of the water consumer using a water meter. When the volume of water delivered into the container of the water consumer reaches the value specified by the consumer, the control module turns off pump 2 and closes the corresponding electrically controlled valves, as a result of which the process of dispensing water into the container of the water consumer ends.

In the process of dispensing water into the container of the water consumer, the input water from the water supply system is supplied to the module 1 for preliminary water purification, where it is purified from mechanical impurities, high-molecular organic substances and residual chlorine. From the outlet of the module 1, water is supplied to the inlet of the high-pressure pump 2, where the water acquires the pressure required for water purification by the reverse osmosis method. Further, this water is supplied to the inlet of the membrane module 3 of the main stage of reverse osmosis water purification. In the membrane module 3, the tap water entering this module (previously purified in module 1) is divided into two streams - permeate (water purified by reverse osmosis), entering the permeate outlet 4 of module 3, and concentrate (water containing dissolved impurities that were delayed by the membrane of the module 3), entering the outlet 5 of the concentrate of the module 3. The permeate from the outlet 4 of the membrane module 3 through the mixer 13 and the ultraviolet disinfection module 14 is fed into the container of the water consumer installed in the module 15. The concentrate from the outlet 5 of the membrane module 3 is fed to the inlet membrane module 6 of the first additional stage of reverse osmosis water purification. In the membrane module 6, the concentrate entering this module (obtained from the membrane module 3) is divided into two streams - the permeate entering the outlet 7 of the permeate of the module 6, and the concentrate entering the concentrate outlet 8 of the module 6. Permeate from the outlet 7 of the membrane module 6 through the mixer 13 and the ultraviolet disinfection module 14 is supplied to the container of the water consumer installed in the module 15. The concentrate from the outlet 8 of the membrane module 6 is fed to the inlet of the membrane module 9 of the second additional stage of reverse osmosis water purification. In the membrane module 9, the concentrate entering this module (obtained from the membrane module 6) is divided into two streams - the permeate entering the permeate outlet 10 of the module 9, and the concentrate entering the concentrate outlet 11 of the module 9. Permeate from the 10 membrane module 9 outlet through the mixer 13 and the ultraviolet disinfection module 14 is supplied to the container of the water consumer installed in the module 15. The concentrate from the outlet 11 of the membrane module 9 is fed through the drainage pipeline 12 to the sewer. Thus, three flows of permeate enter the container of the water consumer, thereby forming a total flow of permeate with a large (due to summation) flow rate, which increases the efficiency of tap water and, in addition, makes it possible not to use in this device the intermediate accumulation of permeate in specially the reservoir intended for this, which significantly reduces the weight and dimensions of the apparatus.

Claims (1)

A three-stage flow-through aqua vending apparatus containing a water pre-treatment module, made with the possibility of hydraulically connecting its inlet to the water supply network, a pump, the inlet of which is hydraulically connected to the outlet of the pre-water purification module, the main membrane reverse osmosis module, the inlet of which is hydraulically connected to the pump outlet, drainage a pipeline, a module for dispensing water into a container of a water consumer, as well as a control module and an electrically connected user interface for controlling the process of dispensing water into a container of a water consumer, characterized in that it contains the first and second additional reverse osmosis membrane modules, as well as a flow mixer permeate, which has three inlets, hydraulically connected to the permeate outlets of the three mentioned membrane modules, and an outlet hydraulically connected to the module for dispensing water into the container of the water consumer, while the inlet of the first additional reverse osmosis membrane module is hydraulically connected inen with the concentrate outlet of the main reverse osmosis membrane module, the inlet of the second additional reverse osmosis membrane module is hydraulically connected to the concentrate outlet of the first additional reverse osmosis membrane module, and the concentrate outlet of the second additional reverse osmosis membrane module is hydraulically connected to the inlet of the drainage pipeline.

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