RU214886U1 - Sodium Hypochlorite Plant - Google Patents

Abstract

The utility model relates to mobile devices for the production of sodium hypochlorite (SPCHN) for water disinfection in water supply and sanitation systems, namely, to plants of complete factory readiness that do not require various kinds of approvals and design developments to obtain a GPHN of average productivity. It can be used for periodic production, storage and distribution of the GPCHN solution to the consumer, for example, in the area of natural disasters, military conflicts, as well as for water supply systems of small and medium-sized settlements.

The technical result consists in the creation of a mobile universal installation of full factory readiness of medium productivity for obtaining a solution of HPCHN with a concentration of chlorine equivalent of 6-8 g/l.

The installation for obtaining the HPCHN solution is mounted in a standard shipping container (1), divided by a partition (2) with a door (3) into the hardware (4) and reactor (5) compartments, respectively equipped with a side door (6) and end hinged doors (7) . In the hardware compartment (4) of the container (1) there is a network electrical panel (8) for connecting to an external power supply, a control panel (9) and a DC electrical power source (10) for the flow electrolyzer (11). A sealed flow electrolyzer (11), two sealed identical containers (12) and (13) with removable covers, a circulation electric pump (14), pipelines with manual and automatic shut-off and control valves, a pressure fan (15) with nozzles are installed in the reactor compartment of the container for the forced release of hydrogen into the atmosphere. 3 w.p. f-ly, 15 ill.

Description

The claimed technical solution relates to mobile devices for the production of sodium hypochlorite for water disinfection in water supply and sanitation systems, namely, to complete factory readiness installations that do not require various kinds of approvals and design development to obtain sodium hypochlorite of medium productivity. It can be used for periodic production, storage and distribution of sodium hypochlorite solution to the consumer, for example, in the area of natural disasters, military conflicts, as well as for water supply systems of small and medium-sized settlements.

Known "Installation for obtaining a solution of a salt of oxyacid of chlorine" according to the author's certificate of the USSR: SU 783363 A1 dated 11/30/1980, IPC S25V 9/00 - [1]. The installation contains an electrolytic cell and a storage tank, and in order to simplify the design, the electrolyzer is sealed, located outside the storage tank and connected to it by circulation pipelines. In this case, the installation may contain several electrolyzers. Analogue [1] in its constructive implementation is identical to the claimed technical solution in features: "the device contains an electrolytic cell and a storage tank, the cell is sealed, located outside the storage tank and connected to it by circulation pipelines."

The disadvantage of the known installation [1] is that the device is not worked out in detail, its practical implementation is multivariate and does not provide for the mobility of the installation, and also that it does not provide for automation of the process of obtaining sodium hypochlorite.

Mobile installations for the production of sodium hypochlorite (NaOCl) are known, containing a container with a solution of salt (NaCl), a power supply and an immersion cell, for example, according to the following patent literature:

"Installation for the production of sodium hypochlorite" according to the patent for the invention of the Russian Federation: RU 2176982 C2 dated 12/20/2001, IPC S01V 11/06, S25V 9/00 - [2];

"Installation for electrolysis "KRONT"" according to the patent for the invention of the Russian Federation: RU 2038423 C1 dated 06/27/1995, IPC C25V 1/34 - [3];

"Installation for electrolysis" according to the patent for the invention of the Russian Federation: RU 2095475 C1 dated 11/10/1997, IPC C25V 9/00 - [4].

A structural disadvantage of these known devices according to [2], [3] and [4] is that they use a submersible electrolyzer, and, as a result, such devices have very low productivity.

Mobile installations for the production of sodium hypochlorite are also known, for example, according to the following patent literature:

"Installation for electrolysis" according to the patent for a utility model of the Russian Federation: RU 75575 U1 dated 20.08.2008, IPC A61L 2/00, С25В 9/00 - [5];

"Installation for electrolysis" according to the utility model patent of the Russian Federation: RU 145535 U1 dated 20.09.2014, IPC S25V 9/00 - [6].

Installations for electrolysis according to [5] and [6] contain an electrolysis tank with a lid installed on a horizontal base of the frame, a block of electrodes fixed on the holder, which is placed inside the electrolysis tank with the possibility of extraction through a hole in the lid, a power supply unit, a control unit and a control panel, the mobile frame of the units is made of prefabricated pipes connected by bolts in the form of a trolley on wheels. The trolleys contain two side U-shaped frames interconnected by two upper and two lower horizontal ties; a horizontal base with an electrolysis tank is installed on the lower horizontal ties; power supply and control unit, and on the front wall of the case there is a control panel. The frame can be made of tubular elements using threaded fasteners in the form of a trolley on wheels and contains two side U-shaped racks connected to each other by two upper and two lower horizontal lintels, while the horizontal shelf is installed on the lower horizontal lintels.

The disadvantage of these devices for electrolysis according to [5] and [6] is also their low productivity.

The prototype of the claimed technical solution is the "Electrolysis plant" for the production of sodium hypochlorite according to the utility model patent of the Russian Federation: RU 86187 U1 dated 27.08.2009, IPC S25V 9/00 - [7], consisting of a sealed flow electrolyzer, two tanks, an electric pump, circulation pipelines with shut-off and control valves, a pressure fan with nozzles for the forced release of hydrogen into the atmosphere, a hydrogen gas analyzer, an electrical power source for the electrolyzer and a control unit. At the same time, in the prototype plant [7], consisting of a tank for dissolving table salt, the inlet pipe of which is connected to a water supply unit for dilution, equipped with an ion-exchange softener that removes hardness salts in water (calcium and magnesium salts), and the outlet pipe is connected with a dosing pump for supplying the initial sodium chloride solution to the electrolytic cell, the outlet of which is connected to a container for storing the resulting sodium hypochlorite, connected to the dosing pump with a branch pipe for supplying sodium hypochlorite for water disinfection. The power supply system of the plant includes an electric generator, which is part of the set of the electrolysis plant. The water supply unit is equipped with an electric pump, which is part of the electrolysis plant kit. The equipment includes equipment for monitoring the level of free chlorine in disinfected water, which is part of the electrolysis plant kit. The entire set of equipment is installed on a single portable frame and ensures the production and dosing of sodium hypochlorite.

The disadvantage of the prototype [7] is that it, like analogs [5] and [6], is a low-capacity plant and is intended for the production of an aqueous solution of sodium hypochlorite and its direct supply by a dosing pump to the points of water disinfection in pipelines. In view of this, the device [7] must be integrated into a specific water supply system and contain in pipelines after each entry point chlorine concentration analyzers in disinfected water, which greatly complicates and increases the cost of installation. In addition, the entire set of device equipment [7], installed on a single portable frame, must be mounted in a specific room, in which an additional ventilation system must be installed for the forced release of hydrogen into the atmosphere, which requires additional approvals and design solutions, which greatly reduces mobility. . And while the device - the prototype [7] is not intended for periodic production and accumulation of sodium hypochlorite solution with subsequent issuance of it to the consumer.

In view of the foregoing, the shortcomings of analogues and the prototype set the task of creating a mobile, versatile and easy-to-use installation of medium productivity for obtaining a solution of sodium hypochlorite, the installation and launch of which on site would not require various kinds of approvals and design developments. That is, the creation of an installation for the periodic production, storage and distribution of sodium hypochlorite solution to the consumer - for water disinfection (and / or other purposes), for example, in the area of natural disasters, military conflicts, as well as for water supply systems of small and medium-sized settlements.

Also known is the "Electrolysis plant" for the production of sodium hypochlorite according to the patent for a utility model of the Russian Federation: RU 106900 U1 dated 27.07.2011, IPC S25V 9/00 - [8], consisting of a container for dissolving sodium chloride, the inlet pipe of which is connected to the supply unit water, and the outlet pipe is connected to a dosing pump for supplying the initial sodium chloride solution to the working solution preparation unit, an ion-exchange softener that removes hardness salts from the working solution (calcium and magnesium salts), an electrolyzer, the output of which is connected to a reservoir for storing the resulting sodium hypochlorite , wherein the tank is equipped with a pressure fan with a pipe for forced emission of hydrogen into the atmosphere and a pipe connected to the dosing pump for supplying sodium hypochlorite for water disinfection. The plant includes a system for hydrodynamic flushing of the electrolyser, as well as a stabilizer for the flow of the working solution, which is a container with a float valve, inlet and outlet nozzles. In the plant, the ion-exchange softener ensures the removal of hardness salts from the saline working solution, which includes hardness salts of the source water and hardness salts contained in table salt as impurities. The cell uses bipolar collapsible titanium electrodes assembled in packages and consisting of cathodes and anodes, and the cathodes of the bipolar electrodes have a polished surface.

Packages of bipolar electrodes at the connection points of cathodes and anodes have transverse solid partitions. The entire set of plant equipment is installed on a single portable frame and ensures the production and dosing of sodium hypochlorite.

The disadvantage of analogue [8] is that, in contrast to the claimed technical solution, it solves the problem of improving the reliability of the electrolysis plant according to the prototype [7] by adding a system for hydrodynamic washing of the electrolyzer, as well as adding a working solution flow rate stabilizer, which is a container with float valve, inlet and outlet pipes.

In the claimed technical solution, the electrolyzer is made collapsible and with the possibility of quick replacement of electrodes, which makes it possible to dispense with the creation of a high-pressure liquid system and elements of the electrolyzer that would withstand such high pressure, and, therefore, greatly simplifies, reduces the cost and increases the safety and efficiency of the operation of the claimed electrolysis plant for the production of sodium hypochlorite.

The essence of the claimed technical solution lies in the fact that the electrolysis plant for the production of sodium hypochlorite consists of a sealed flow electrolyzer, two tanks, a circulation electric pump, pipelines with shut-off and control valves, a pressure fan with nozzles for the forced emission of hydrogen into the atmosphere, a hydrogen gas analyzer, a source of electrical power supply of the electrolyzer and control unit. In this case, the plant is mounted in a standard transport container, divided by a partition with a door into the instrument and reactor compartments, equipped with a side door and end hinged doors, respectively. In the hardware compartment of the container, there is a network electrical panel for connecting to an external power supply, a control panel and a DC power supply for the electrolyzer. A sealed flow electrolyzer, two identical tanks, an electric pump, pipelines with shut-off and control valves, a pressure fan with nozzles for the forced release of hydrogen into the atmosphere are installed in the reactor compartment of the container. The reactor compartment of the container is equipped with two fittings located in the wall of the transport container, respectively, for supplying water and removing the finished sodium hypochlorite from the electrolysis plant of the transport container. Inside the container, the water supply fitting is connected by pipelines through the shut-off valve located on it in series, the first electrically controlled valve and the shut-off adjustable valve to the inlet water pipe of the first container. The first and second containers are sealed and closed with removable lids from above to provide access to the inside of these containers. From below, the side surfaces of both tanks are connected by a pipeline connecting the outlet of the first tank with the inlet of the second tank. The outlet of the second container is located below and is connected by a pipeline through a shut-off valve to the inlet of the electric pump, the outlet of which is connected by a pipeline to the inlet of the flow electrolyzer. The outlet of the flow cell is connected by pipelines to the second and third electrically controlled valves. The inlet and outlet of the cell is equipped with tees with shut-off valves for sampling to determine the concentration of sodium hypochlorite solution. The outlet of the second electrically controlled valve is connected to the inlet circulation (for sodium hypochlorite solution) pipeline of the first tank, the narrowed outlet of which is located at the bottom and side inner surfaces of the tank and is located obliquely (tangentially) to impart rotational motion to the sodium hypochlorite solution. The outlet of the third electrically controlled valve (inside the container) is connected by a pipeline to the fitting for the removal of finished sodium hypochlorite from the electrolysis plant of the transport container. The outlet of the second container is also connected by a pipeline to a shut-off valve and a fitting for draining liquid residues from two containers and an electric pump. The pressure fan inlet air pipe is located inside the reactor compartment, and its outlet is connected by a pipe to the air inlet to the first container, located in its upper part. The air outlets of the first and second containers, located in their upper part, respectively, are connected by their branch pipes to a common branch pipe, the outlet of which is located outside the container and is equipped with an anti-rain visor. In the second container there is a discrete four-position liquid level detector (in the second and, consequently, the first container, as communicating vessels). From the network electrical panel, through the control panel, the DC power supply for the electrolyser is supplied, in the control panel there are also control, blocking and signaling units.

Inside the container, after the water supply fitting on the pipeline, a device for measuring the flow of water into the container can be installed. In the hardware compartment of the container, a workplace for the plant operator can be equipped. The workplace of the plant operator in his equipment compartment can be equipped with communication facilities and air conditioning.

The technical result consists in the creation of a mobile universal installation of full factory readiness of medium productivity for obtaining a solution of sodium hypochlorite.

Restrictive features of the utility model formula: “an electrolysis plant for the production of sodium hypochlorite consists of a sealed flow electrolyzer, two tanks, an electric pump, circulation pipelines with shut-off and control valves, a pressure fan with nozzles for the forced release of hydrogen into the atmosphere, a hydrogen gas analyzer, an electric power source for the electrolyzer and control unit", describe the well-known design of the electrolysis plant in the general joint features of the prototype and the claimed device.

Distinctive features of the utility model formula: "the plant is mounted in a standard shipping container, divided by a partition with a door into the instrumentation and reactor compartments, equipped respectively with a side door and end hinged doors", solves the problem of increasing the mobility of the plant, its versatility, and ease of its operation, in mind that

firstly, the task of increasing the mobility of the plant is solved by the fact that an electrolysis plant of medium productivity for the production of sodium hypochlorite, mounted in a standard shipping container, can be transported to the customer by any mode of transport, for example, by road, rail, air, water, etc.;

secondly, the task of increasing the versatility of the installation is solved by the fact that the claimed device refers to installations of full factory readiness, which do not require various kinds of approvals and design developments during installation and connection of the installation to communications;

thirdly, the task of increasing the ease of operation of the installation is solved by the fact that the declared electrolysis plant for the production of sodium hypochlorite is divided into two compartments - into the hardware compartment and the reactor compartment, while in the hardware compartment there are equipment electrical panels (allowing the installation to be operated in semi-automatic mode), and also the workplace of the operator can be equipped.

Distinctive features: “a network electrical panel for connection to an external power supply, a control panel and a DC power supply for the electrolyzer are installed in the hardware compartment of the container” reveal in detail the design features of the hardware compartment of the claimed device, which, as a result, allow to further increase the safety of operation of the installation, since when dividing a standard shipping container into instrument and reactor compartments, the impact of water aerosols (vapors) with sodium hypochlorite on power electrical and radio-electronic equipment, which are located in the instrument compartment, is minimized. Elements of electrical equipment located in the reactor compartment are waterproof and explosion-proof.

Distinctive features: “a sealed flow electrolyzer, two identical tanks, a circulation electric pump, pipelines with shut-off and control valves, a pressure fan with nozzles for the forced release of hydrogen into the atmosphere are installed in the reactor compartment of the container” reveal the main elements of the equipment installed in the reactor compartment of the container.

The following distinguishing features of the first independent claim of the utility model describe the design features of the elements of the claimed device and the relationship between them to meet the criterion of the utility model "industrial applicability".

The essence of the claimed technical solution is further illustrated by graphic materials:

In FIG. 1 shows a functional diagram of the claimed installation for the production of sodium hypochlorite, mounted in a shipping container, separated by a partition with a door.

In FIG. 2 is a schematic section of the claimed installation, mounted in a shipping container, separated by a partition with a door.

In FIG. 3 is a photograph of the exterior of the claimed plant for producing sodium hypochlorite, mounted in a standard 20-foot shipping container with a side door to the equipment compartment and hinged end doors of the reactor compartment.

In FIG. 4 - photograph of the equipment of the reactor compartment of the transport container with installed equipment (main).

In FIG. 5 - photograph of the equipment of the hardware compartment of the shipping container with the installed equipment (with the operator's workplace).

In FIG. 6 is a photograph of the appearance of the back side of the shipping container with water inlet, sodium hypochlorite outlet, and air outlet pipeline.

In FIG. 7 is a photograph of the external view of the inside of the reactor compartment of the transport container with fittings for water supply, sodium hypochlorite removal, and the pipeline for air removal from the container.

In FIG. 8 is a photograph of a flow cell installed above a circulation pump, pipelines and valves.

In FIG. 9 is a photograph of the first container with the lid (screwed) removed.

In FIG. 10 is a photograph of the location of the liquid conduit located in the first vessel.

In FIG. 11 is a photograph of a four-position discrete level meter located in the second container (with the lid removed).

In FIG. 12 is a photograph of a pressure fan with suction and air outlet pipes.

In FIG. 13 is a photograph of the control panel and other devices located in the equipment compartment of the shipping container.

In FIG. 14 is a photograph of a hydrogen sensor (sensor) located on the ceiling of the reactor compartment.

In FIG. 15 is a photograph of the control panel with the door of the control panel open and the elements installed in it.

On the figures of graphic materials, the positions indicate

1 - standard 20-foot shipping container; 2 - internal partition of the shipping container; 3 - the door of the partition of the transport container; 4 - hardware compartment of the transport container (1); 5 - reactor compartment of the transport container (1); 6 - side door of the hardware compartment (4) of the shipping container (1); 7 - end hinged doors of the reactor compartment (5) of the transport container (1); 8 - network electrical panel for connection to an external power supply; 9 - control panel (ShU); 10 - DC power supply; 11 - hermetic flow cell; 12 - the first container with a screw cap; 13 - the second container with a screw cap; 14 - circulation electric pump; 15 - pressure fan; 16 - water supply fitting from the transport container (1); 17 - fitting for the removal of finished sodium hypochlorite from the transport container (1); 18 - shut-off solenoid valve for water supply through the fitting (16); 19 - the first electrically controlled valve; 20 - shut-off adjustable valve; 21 - pipeline connecting the outlet of the first tank (12) with the inlet of the second tank (13); 22 - liquid exit pipeline from the second tank (13), through which the liquid passes through the open shut-off valve (23), the electric pump (14) and the open shut-off valve (24) to the flow electrolyzer (11); 23 - shut-off valve for entering the circulation pump (14); 24 - shut-off valve for the outlet of the circulation electric pump (14); 25 - shut-off valve for sampling sodium hypochlorite solution in front of the flow cell (11); 26 - shut-off valve for sampling the sodium hypochlorite solution after the flow cell (11); 27 - liquid pipelines; 28 - the second electrically controlled valve for the entry of liquid into the first container (12); 29 - the third electrically controlled valve for issuing the finished solution of sodium hypochlorite to the consumer through the fitting (17); 30 - liquid pipeline of the first tank (12) with a narrowed outlet located at the bottom of the tank (12) and obliquely (tangentially) to impart rotational motion to the sodium hypochlorite solution; 31 - liquid pipeline for draining the remains of sodium hypochlorite solution and washing liquids from the installation (drainage pipeline); 32 - shut-off valve of the pipeline (31) - drainage pipeline; 33 - fitting of the pipeline (31) with a shut-off valve (32) for draining the remains of sodium hypochlorite solution and washing liquids from the container (1) with the hinged doors (7) open; 34 - air inlet pipe of the pressure fan (15); 35 - air pipe outlet from the pressure fan (15) and the entrance to the first container (12); 36 - air outlet pipe from the first container (12) - from its upper part; 37 - air outlet pipe from the second tank (13) - from its upper part; 38 - common pipe outlet air with hydrogen impurities from the container (1); 39 - anti-rain cap of the pipe (38) outside the container (1); 40 - discrete three-position determinant (40) of the level (level gauge) of the liquid in the second (13) and connected with it by a pipeline (21) identical to the first container (12), as in communicating vessels; 40.1, 40.2, 40.3 and 40.0 - four submersible titanium rods of a discrete four-position liquid level detector (40) with liquid presence contacts; 41 - hydrogen gas analyzer; 42 - hydrogen sensor (sensor) of the gas analyzer; 43 - meter for water consumption in the container (B); 44 - air conditioning of the hardware compartment (4) - operator's workplace; 45 - frequency converter of the centrifugal circulation pump; 46 - separate circuit breakers for powering the electrical equipment of the installation - see fig. fifteen; 47 - controller for controlling the DC power supply (10) of the flow cell (11); 48 - constant power supply for controllers and other devices; 49 - connecting electrical pads; 50 - controller Siemens "LOGO"; 51 - expander controller (50); 52 - relay for turning on devices by controller commands (50); 53 - level gauge control unit (40) in the second tank (13). In addition, in the drawings in FIG. 1 abbreviations Ek.1 - Ek.7 are given, denoting electrical cables connecting the elements of the control panel (9) with the corresponding elements of the functional diagram of the claimed installation for the production of sodium hypochlorite (GPCHN) according to figure 1.

The plant for sodium hypochlorite production is mounted in a standard shipping container (1) separated by a partition (2) with a door (3) into a control room (4) and a reactor room (5), respectively equipped with a side door (6) and end hinged doors (7). In the hardware compartment (4) of the container (1) there is a network electrical panel (8) - (external three-phase voltage with a frequency of 380 V, a frequency of 50 Hz and a power of up to 20 kW), for connection to an external power supply, a control panel (9) and a source of electrical DC power supply (10) for the flow cell (11). Dividing the volume of a standard shipping container (1) into two compartments - hardware (4) and reactor (5) is necessary to improve ease of use, as well as to protect electronics from possible effects of vapors, sodium hypochlorite solution mist, as well as creating in the hardware compartment (4 ) operator's workplace isolated from the reactor compartment. A sealed flow electrolyzer (11), two identical containers (12) and (13) with screw (removable) lids, a circulation electric pump (14), pipelines with shut-off and control valves, a pressure fan (15) with nozzles for forced release of hydrogen into the atmosphere. The reactor compartment (5) of the container is equipped with two fittings (16) and (17) located in the wall of the transport container (1), respectively, for supplying (16) water for removing (17) finished sodium hypochlorite from the electrolysis unit of the transport container (1). Inside the container, the water supply fitting (16) is connected by pipelines through the shut-off electrovalve (18), the first electrically controlled valve (19) and the shut-off adjustable valve (20) located on it to the inlet water pipe of the first tank (12), located in the upper part of the first tank. containers (12). The shut-off solenoid valve (18) solves the problem of increasing the ease of operation of the installation, since in the event of a sudden possible power outage, it blocks the access of water to the installation, excluding its overflow into containers (21) and (13). The first (12) and second (13) containers are made airtight and are closed from above with removable covers (screwed) to provide access to the inside of these containers. Identical containers (12) and (13) are made of a chemically neutral material that does not interact with sodium hypochlorite, for example, polyethylene. The first container (12) serves for the initial filling of the NaCl salt into it and its dissolution in water, and the second container (13) serves for accurate measurement of the liquid level (sodium hypochlorite solution). From below, the side surfaces of both tanks (12) and (13) are connected by a pipeline (21) connecting the outlet of the first tank (12) with the inlet of the second tank (13). The outlet of the second container (13) is located below and is connected by a pipeline (22) through a shut-off valve (23) to the inlet of the electric pump (14), the outlet of which is connected by a pipeline through a shut-off valve (24) to the inlet of the flow cell (11). The inlet and outlet of the flow cell (11) is provided with pipeline tees with shut-off valves (25) and (26), respectively, designed to take samples of the sodium hypochlorite solution before and after the flow cell (11). The outlet of the flow cell (11) is connected by pipelines (27) to the second (28) and third (29) electrically controlled valves. The output of the second electrically controlled valve (28) is connected to the inlet circulation (for sodium hypochlorite solution) branch pipe of the first container (12) with a pipeline (30), the narrowed outlet of which (30) is located at the lower and side inner surfaces of the container (12) and is located obliquely ( tangentially) to impart rotational motion to the sodium hypochlorite solution. Two identical containers (12) and (13) are located along the long wall of the container (1) to provide free passage for the operator, which also improves the ease of operation of the installation. The identity of containers (12) and (13) also makes it easier to determine the volume of the prepared sodium hypochlorite solution, since its volume readings (according to the level readings in the second container) only need to be doubled. In addition, such use instead of one two tanks (12) and (13) additionally allows the dissolution of salt in the first tank (12) - where there is an active rotational movement of the liquid and the measurement of the liquid level in the second tank, where there is no rotational movement of the liquid. The presence of two containers (12) and (13), with a volume of 1 m ³ each, also makes it possible to reduce their height, which facilitates ease of use, since the level of filling NaCl salt into the first container (12) is reduced. The output of the third electrically controlled valve (29) inside the container is connected by a pipeline to the fitting (17) for the removal of finished sodium hypochlorite from the electrolysis plant of the transport container (1). The first (19), second (28) and third (29) electrically controlled valves allow you to initially set (adjust) the degree of their opening, than in the process of setting up the installation, you can additionally adjust it to the optimal operating mode. The outlet of the second tank (13) is also connected by a pipeline (31) with a shut-off valve (32) for draining liquid residues from two tanks (12), (13) and an electric pump (14) through a fitting (33) from a container (1) with open swing gates ( 7). The air inlet pipe (34) of the pressure fan (15) is located inside the reactor compartment (5), and its outlet is connected by a pipe (35) to the air inlet to the first tank located in the upper part of the first tank (12). The air outlets of the first (12) and second (13) containers, located in their upper part and, respectively, with their nozzles (35), (36) are connected to a common nozzle (38), the outlet of which is located outside the container (1) and is equipped with an anti-rain visor ( 39). The connection of two tanks (12) and (13) with air nozzles (36) and (37) additionally serves to equalize the pressure in both tanks for an accurate measurement of the liquid level. In the second tank (13) there is a discrete four-position detector (40) of the liquid level in the second (13) and connected with it by a pipeline (21) identical to the first tank (12), as in communicating vessels. A discrete four-position liquid level detector (40) has four submersible titanium rods for level detection (40.1, 40.2, 40.3 and 40.0) with contacts for the presence of an electrically conductive liquid, respectively, with levels: "1" - the level of water supply interruption (upper level), "2 "- the level of the start of switching on the pump (14) to accelerate the dissolution of salt (middle level), "3" - the level of the end of dispensing sodium hypochlorite solution (lower level), "0" - the basic minimum liquid level in two containers (12) and (13 ). From the network electrical panel (8) through the control panel (9) the source (10) of direct current power supply for the electrolyzer (11) is powered. The control panel (9) also houses the control, blocking and signaling units. In the hardware compartment there is a gas analyzer (41) of hydrogen (see Fig. 13), a sensitive sensor (sensor) - (42) of which (see Fig. 14) is fixed on the ceiling of the reactor compartment (5). The hydrogen gas analyzer (41) is connected by an electric cable to the control panel (9). Inside the container, after the water supply fitting on the pipeline, a device (43) for measuring the water flow into the container (1) can be installed. In the hardware compartment (4) of the container (1), a workplace for the installation operator can be equipped (see Fig. 5). The workplace of the plant operator in his equipment compartment (4) can be equipped with communication facilities and air conditioning (44) - see Fig. 5. In the hardware compartment (4) can also be installed (see Fig. 13) a frequency converter ((45) - see Fig. 5 and Fig. 13) centrifugal circulation pump (14) for smooth adjustment of its performance. Inside the control box (9) - see fig. 15, can be installed: separate circuit breakers (46) for powering the electrical equipment of the installation, controller (47) for controlling the power supply (10) of the flow electrolyzer (11), a constant power supply (48) for controllers and other devices, connecting electrical pads (49), Siemens "LOGO" controller (50), expander (51) of the controller (50), relay (52) for turning on devices by controller commands (50), level control unit (53) (40) in the second tank (13 ) and other devices.

Works the claimed installation for the production of sodium hypochlorite (GPCHN) as follows.

Initially, after the installation of the claimed installation in a container (1) (at the customer's or consumer's) and its connection to electricity networks, cold water supply, as well as to containers (not shown in the figures) for storing the finished GPC, they start turning on the installation.

The process of obtaining a solution of sodium hypochlorite in the claimed installation can be functionally divided into four stages:

1 - preparation for automatic production;

2 - salt dissolution;

3 - operating time of GPCHN;

4 - issuance of the finished HPCHN with a concentration of 6-8 g/l (gram/liter) in automatic or manual mode, when the unit is not initially connected to the storage tanks for the finished HPCHN.

Preparation for the automatic production of HPCHN begins with the operator pouring the NaCl salt into the first container (12) through its upper opening with the screw (removable) cover removed, while the salt is brought into the reactor compartment (5) through the open hinged door (7) for ease of transportation. After pouring salt into the first container (12), it is hermetically sealed with a screw cap and the swing door (7) of the container (1) is closed.

Further operation of the installation is carried out in automatic mode, so from the control panel (9) the process of preparing GPCHN is carried out depending on the program located in the programmable logic controller (50). After pressing the “Start” button on the control panel (9), the electrovalve (18) and the first electrically controlled valve (19) open and into the first tank (12) through the shut-off adjustable valve (20), which can additionally regulate the water flow, water from an external source cold water supply begins to flow into the first tank (12), gradually filling it up to the levels determined by the level sensor (40) installed in the second tank (13). Since the first (12) and second (13) tanks are connected by a pipeline (21), they are simultaneously filled with water, like communicating vessels. The level sensor LE (40) is a system of four rods made of titanium VT 1-0 10.0 mm of different lengths, respectively (40.0), (40.1), (40.2) and (40.3), attached to the control unit (53) of the level gauge (40 ), which is, for example, a block for matching sensor signals - type "BKK1-24", installed in the control panel (9) (CB). The front panel of the control panel (9) displays the level of the solution in the tank, with three discrete values ("Level 1" - the upper value, "Level 2" - the average value and "Level 3" - the lower value), measured by the level sensor LE (40). "Level 0" is the base minimum liquid level from which the level gauge (40) starts counting in block (53). Visual control of filling by lamps (LEDs) indicating the level of the front panel of the control room (9). After filling the first (12) and second (13) tanks with water to the value “Level 2”, the second electrically controlled valve (28) is opened by a signal from the LOGO controller (5) of the control room (9), while the stopcocks (20), (23) , (24) must be open and shut-off valves (25), (26), (32) must be closed. With the help of a signal from the LOGO controller (50), the control room (9) turns on the air pressure fan (15) and the circulation pump (14). Switching on is controlled by the lamps (LEDs) indicating "Blower" and "Pump" located on the front panel of the control room (9) on the door of the control panel (9). In this case, the saline solution comes from the bottom of the first tank (12) through the pipeline (21) to the second tank (13), where its level is measured by a discrete level gauge (40). Further along the pipeline (22) through the open shut-off valve (23) it enters the electrolyzer (11), from which it enters the pipeline (30) through the second electrically controlled valve (28) and is ejected tangentially along the wall into the first container (12), washing in a circle and dissolving the salt. Thus, the salt solution recirculation mode is organized, which increases the rate of salt dissolution. At the end of the salt dissolution process in water, which is 10 minutes, after reaching the “Level 2” value in the first (12) and second (13) containers, the process of HPCHN production begins. The process of operating time of the GPCHN begins with switching on the DC power supply (10) (hereinafter referred to as PS (10)) by a signal from the LOGO controller (50) of the control room (9). IP (10) provides electricity to the electrolysis process at a direct current of 100 A and voltage up to 130 V. The voltage between the working electrodes of the flow electrolyzer (11), as it was established in practice, can vary from 102 to 87 V, depending on the concentration of sodium hypochlorite in system. Switching on control is carried out by the lamp (LED) indicating "Power supply" located on the control panel panel (9). Thus, the process of electrolysis of the saline solution and the production of HPCHN in the flow electrolyzer (11) is started, in which water decomposes into oxygen and hydrogen. Oxygen oxidizes the salt, forming HPCHN. Pure hydrogen, together with the HPCHN solution, enters the first tank (12), mixes with air coming from the pressure fan (15) - "blower" and is removed through the pipeline (38) outside the container (1). When the "Level 1" of the liquid in the tanks (12) and (13) is reached, which corresponds to the complete filling of both tanks, the shut-off electrovalve (18) of the water supply and the first electrically controlled valve (19) are closed and the water supply to the tanks (12) and ( 13). The duration of the recirculation cycle with the operating time of GPCHN is determined by the technological map. Upon completion of the recirculation cycle, upon a signal from the LOGO controller (50), the control room (9) turns off the MT (10), closes the second electrically controlled valve (28), opens the third electrically controlled valve (29) and the finished HPCHN solution is pumped through the circulation pump (14) through fitting (17) to the consumer, for example, into the dosing container, if there is free space in the container. In the figures in the drawings, the dosing capacity is not shown. If there is no free space in the dosing tank or there is no such tank itself, the finished HPCHN remains in the first (12) and second (13) containers in the container (1). In this case, the cycle of operation of the declared installation ends. The lamp (LED) “End of cycle” lights up on the control room (9). discharge with a tap into the industrial sewer. It consists of a drain pipeline (31) and a drain shut-off valve (32) and a fitting (33), through which, with the swing doors (7) open, the remaining HPCHN solution and possible flushing liquids are manually drained from the unit, for example, through a connected to the fitting ( 33) flexible pipeline - not shown in the figures.

The claimed installation is equipped with an automatic locking system in case of the following possible technical malfunctions:

1 - the circulation pump (14) does not turn on if there is no minimum water level in the first (12) and second (13) tanks;

2 - IP (10) turns off when the circulation pump (14) and/or pressure fan (15) is turned off;

3 - shutdown of the installation when the second threshold of a two-level hydrogen gas analyzer (41) appears, for example, a hydrogen gas analyzer of the IGS-98 series (when the first hydrogen concentration threshold is reached, an audible and light signal is given to the installation operator, and when the second level is reached, the operation of the installation additionally stops).

The plant allows to produce GPCHN from table salt, an aqueous solution of sodium hypochlorite with a concentration of chlorine equivalent of 6-8 g/l. Ensuring the required concentration of sodium hypochlorite is ensured by the recirculation of the salt solution through the cell during its operation.

The claimed device is a mobile and universal installation of full factory readiness of medium productivity for obtaining an aqueous solution of HPCHN, as it is mounted in a standard 20-foot shipping container that can be operated both on a vehicle and when it is installed on the ground (on a prepared site, foundation and etc.). At the same time, various kinds of approvals and design developments are not required for the installation and connection of such an installation (there is no need to develop a project for an electrolysis station) to produce sodium hypochlorite, which greatly reduces the start-up time of the installation. Also, the rapid construction of facilities for the disinfection of drinking and waste water is achieved, since the necessary solution of GPCHN is available, which is necessary for water disinfection.

Thus, from the above, additional advantages of the claimed technical device follow:

lack of saline preparation;

the use of low quality table salt;

automation of the process of preparation of the HPCHN solution;

no need to develop a project for the installation;

rapid construction of facilities for the disinfection of drinking and waste water with the declared installation.

All this reduces the cost of both the claimed installation itself and the product of its production of an aqueous solution of HPCHN for direct use for its intended purpose.

These circumstances make it possible to use the unit in the area of natural disasters, military conflicts, as well as for water supply systems of small and medium-sized settlements during periodic production, storage and distribution of the GPCHN solution to the consumer for water disinfection in water supply and sanitation systems. At the same time, the installation is convenient in operation, in view of the fact that the installation control system is automated and after its connection and adjustment, the presence of the operator is necessary only during the initial loading of table salt NaCl into the first tank of the installation, as well as when the finished solution of sodium hypochlorite - NaOCl is issued from the installation to the consumer , that is, it is possible to operate the installation in a semi-automatic mode.

Based on the foregoing, the claimed device called "installation for the production of sodium hypochlorite" has all the criteria of a utility model, since the set of restrictive and distinctive features of the utility model formula is new (such a set is unknown at this level of technology development) for such installations, and, therefore , meets the criterion of "novelty".

"Installation for the production of sodium hypochlorite" has been manufactured, tested and its widespread introduction does not present any structural, technical and technological difficulties, which implies compliance with the criterion of "industrial applicability".

Literature

1. USSR author's certificate: SU 783363 A1 dated 11/30/1980, IPC S25V 9/00, "Installation for obtaining a solution of chlorine oxyacid salt".

2. Patent for the invention of the Russian Federation: RU 2176982 C2 dated 12/20/2001, IPC S01V 11/06, S25V 9/00, "Installation for the production of sodium hypochlorite".

3. Patent for the invention of the Russian Federation: RU 2038423 C1 dated 06/27/1995, IPC C25V 1/34, "Installation for electrolysis "KRONT"".

4. Patent for the invention of the Russian Federation: RU 2095475 C1 dated 11/10/1997, IPC C25V 9/00, “Installation for electrolysis”.

5. Utility model patent of the Russian Federation: RU 75575 U1 dated 20.08.2008, IPC A61L 2/00, С25В 9/00, “Plant for electrolysis”.

6. Utility model patent of the Russian Federation: RU 145535 U1 dated 09/20/2014, IPC S25V 9/00, “Plant for electrolysis”.

7. Utility model patent of the Russian Federation: RU 86187 U1 dated 27.08.2009, IPC C25V 9/00, "Electrolysis plant" - prototype.

8. Utility model patent of the Russian Federation: RU 106900 U1 dated 07/27/2011, IPC S25V 9/00, “Electrolysis plant”.

Claims (4)

1. An electrolysis plant for the production of sodium hypochlorite, consisting of a sealed flow electrolyzer, two tanks, a circulating electric pump, pipelines with shut-off and control valves, a pressure fan with nozzles for the forced release of hydrogen into the atmosphere, a hydrogen gas analyzer, an electric power source for the electrolyzer and a control unit, characterized in that the unit is mounted in a standard shipping container, divided by a partition with a door into the hardware and reactor compartments, respectively equipped with a side door and end hinged doors, in the hardware compartment of the container there is a network electrical panel for connecting to an external power supply, a control panel and an electrical power source direct current for the electrolyzer, in the reactor compartment of the container there is a sealed flow electrolyzer, two identical containers, a circulating electric pump, pipelines with shut-off and control valves , a pressure fan with nozzles for the forced release of hydrogen into the atmosphere, the reactor compartment of the container is equipped with two fittings located in the wall of the transport container, respectively, for supplying water and removing finished sodium hypochlorite from the electrolysis plant of the transport container, inside the container there is a fitting for water supply through pipelines located in series on there is a shut-off valve, the first electrically controlled valve and the shut-off adjustable valve are connected to the inlet water pipe of the first tank, the first and second tanks are sealed and closed with removable covers from above to provide access to the inside of these tanks, from below the side surfaces of both tanks are connected by a pipeline connecting the outlet of the first tank with the inlet of the second tank, the outlet of the second tank is located below and is connected by a pipeline through a shut-off valve with the inlet of the electric pump, the outlet of which is connected by a pipeline to the inlet of the flow electrolyzer, the outlet of the flow th electrolyser is connected by pipelines to the second and third electrically controlled valves, the inlet and outlet of the electrolyzer is equipped with tees with shut-off valves for sampling to determine the concentration of sodium hypochlorite solution, the outlet of the second electrically controlled valve is connected to the inlet circulation pipeline of the first tank, the narrowed outlet of which is located at the bottom and side internal surfaces of the tank and is inclined to impart rotational movement to the sodium hypochlorite solution, the outlet of the third electrically controlled valve is connected by a pipeline to the outlet of the finished sodium hypochlorite from the electrolysis plant of the transport container, the outlet of the second tank is also connected by a pipeline to a shut-off valve and a nozzle for draining liquid residues from two tanks and an electric pump , the pressure fan inlet air pipe is located inside the reactor compartment, and its outlet is connected by a pipe with an air inlet to the first vessel, located in its upper parts, the air outlets of the first and second tanks, located in their upper part, respectively, with their pipes are connected to a common pipe, the outlet of which is located outside the container and is equipped with a rain shield, in the second tank there is a discrete four-position liquid level detector in the second tank, from the mains electrical panel , a direct current power supply for the electrolyser is supplied through the control panel, control, blocking and signaling units are also located in the control panel. 2. An electrolysis plant for the production of sodium hypochlorite according to claim 1, characterized in that inside the container, after the water supply fitting on the pipeline, a device for measuring the water flow into the container is installed. 3. An electrolysis plant for the production of sodium hypochlorite according to claim 1, characterized in that the plant operator's workplace is equipped in the equipment compartment of the container. 4. An electrolysis plant for the production of sodium hypochlorite according to claim 3, characterized in that the workplace of the plant operator in his equipment compartment is equipped with communication equipment and air conditioning.

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