WO2015130195A1 - Installation de production d'une solution aqueuse de dioxyde de chlore et de chlore - Google Patents

Installation de production d'une solution aqueuse de dioxyde de chlore et de chlore Download PDF

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Publication number
WO2015130195A1
WO2015130195A1 PCT/RU2015/000105 RU2015000105W WO2015130195A1 WO 2015130195 A1 WO2015130195 A1 WO 2015130195A1 RU 2015000105 W RU2015000105 W RU 2015000105W WO 2015130195 A1 WO2015130195 A1 WO 2015130195A1
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WO
WIPO (PCT)
Prior art keywords
chlorine
water
chlorine dioxide
aqueous solution
reactor
Prior art date
Application number
PCT/RU2015/000105
Other languages
English (en)
Russian (ru)
Inventor
Сергей Юрьевич КИРИЛЛОВ
Анатолий Васильевич НЕСЫТЫХ
Original Assignee
Акционерное Общество "Уральский Научно-Исследовательский Химический Институт С Опытным Заводом" (Ао "Унихим С Оз")
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Акционерное Общество "Уральский Научно-Исследовательский Химический Институт С Опытным Заводом" (Ао "Унихим С Оз") filed Critical Акционерное Общество "Уральский Научно-Исследовательский Химический Институт С Опытным Заводом" (Ао "Унихим С Оз")
Publication of WO2015130195A1 publication Critical patent/WO2015130195A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/01—Chlorine; Hydrogen chloride
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B11/00—Oxides or oxyacids of halogens; Salts thereof
    • C01B11/02—Oxides of chlorine
    • C01B11/022—Chlorine dioxide (ClO2)
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • C02F1/763—Devices for the addition of such compounds in gaseous form
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/02—Temperature
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/03—Pressure
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/40—Liquid flow rate

Definitions

  • the invention relates to chemical equipment for the production of a solution of chlorine-containing oxidizing agents used as disinfecting agents in the disinfection and purification of drinking, waste, recycled water and other environments, in particular, to installations for producing an aqueous solution of chlorine dioxide and chlorine.
  • a known installation for the production of chlorine dioxide including a reactor, containers for reagents, metering pumps for supplying reagents to the reactor, valves, ejector, control unit, while from the reactor the reaction medium (gas-liquid mixture of chlorine dioxide and chlorine) enters the ejector through a pipeline, which has a tap for pumping the reaction medium (a gas-liquid mixture of chlorine dioxide and chlorine) poured from the reactor.
  • a hollow cylindrical apparatus is used with separate reagent inputs through the walls of the housing at the bottom, vertical rod-shaped heating elements connected through the bottom of the housing and placed in exhaust pipes, as well as one common opening at the top cover for piping output reaction medium (gas-liquid mixture of chlorine dioxide and chlorine) into the ejector (see patent for invention EP N ° 0106503 "Production of chlorine dioxide", 3 IPC CO IB 1 1/02, C01B 11/025, priority 09.09.1982 , opu lished of 25.04.1984).
  • a disadvantage of the known installation for the production of chlorine dioxide is the high energy consumption due to the need to heat the reaction medium and conduct a chemical reaction in the reactor in boiling mode. This also leads to the need to condense the formed steam with an additional amount of water passed through the ejector, and, consequently, to an additional flow of water.
  • Closest to the claimed invention is a plant for producing a solution of chlorine dioxide from sodium chlorate, containing a reactor for producing a solution of chlorine dioxide having a water jacket with vertical rod-shaped heating elements for heating water of a water jacket, reactant supply lines, metering pumps for supplying reactants to the reactor, pressure relief valve, ejector, control unit (see patent application CN N ° 101492152 “Chlorine dioxide solution generator with sodium chlorate as reaction raw material)”, 8 IPC C01B 1 1/02, priority dated March 13, 2009, published July 29, 2009).
  • a disadvantage of the known installation for the production of chlorine dioxide is the high energy consumption due to the use of vertical rod-shaped heating elements for heating water in a water jacket due to the need to heat the reaction medium and conduct the chemical reaction in the reactor in boiling mode. This also leads to the need to condense the generated steam with an additional amount of water passed through the ejector, and, consequently, to an additional flow of water.
  • the reactor although equipped with a water jacket, in which vertical rod-shaped heating elements are placed (constructive heating of the reaction medium), however, for the operation of the known device, the chemical reaction must still proceed in the reactor in boiling mode, which leads to the formation of large gas bubbles and the decomposition of chlorine dioxide ("panting"), and, therefore, reduces its reliability and safety of operation.
  • the technical task of the claimed invention is to increase the reliability and safety of operation of the installation to obtain an aqueous solution of chlorine dioxide and chlorine, as well as to reduce energy consumption and water consumption and the ability to vary productivity during operation of the installation.
  • the claimed technical problem is achieved by the fact that in the inventive installation for producing an aqueous solution of chlorine dioxide and chlorine containing a reactor for receiving a gas-liquid mixture of chlorine dioxide and chlorine, reactant supply lines, metering pumps for supplying reactants to the reactor, safety valve, water-jet ejector, block control system according to the invention, the installation for producing an aqueous solution of chlorine dioxide and chlorine is additionally equipped with a check valve, while the check valve is installed after the water-jet ejector and in the feeding line of the resulting aqueous solution of chlorine dioxide and chlorine in the treated water.
  • control unit of the installation for producing an aqueous solution of chlorine dioxide and chlorine dioxide includes a control system for the pressure of water entering the water jet ejector, a control system for rarefaction in the reactor, a system for monitoring the temperature in the reactor and the surrounding environment, and a system for monitoring the presence of chlorine dioxide in the resulting aqueous solution of dioxide chlorine and chlorine.
  • the installation for producing an aqueous solution of chlorine dioxide and chlorine can be additionally equipped with a system for washing the reactor with water.
  • the apparatus for producing an aqueous solution of chlorine dioxide and chlorine may be further provided with a water pressure reducer.
  • the installation for obtaining an aqueous solution of chlorine dioxide and chlorine may be additionally equipped with a flow meter, which is installed on the water supply line in front of the water-jet ejector.
  • the reliability and safety of operation of the inventive installation is achieved due to the stability of the hydrodynamic regime and the intensity of the chemical reaction in the reactor, which is facilitated by the mixing of the reactants without heating them (without use of heating elements, without the need to condense steam with additional water), to obtain a gas-liquid mixture of chlorine dioxide and x lore, without the formation of large bubbles and without decomposition of chlorine dioxide ("pant") determined by the design of the reactor, for example, used in the inventive installation (see RF patent for invention N ° 2503614 "Apparatus for implementing the method of producing a solution of chlorine dioxide and chlorine in water", 8 IPC C01B 1 1/02, priority dated May 31, 2011, published December 10, 2013).
  • FIG. 1 is a block diagram of an apparatus for producing an aqueous solution of chlorine dioxide and chlorine.
  • the apparatus for producing an aqueous solution of chlorine dioxide and chlorine contains a reactor (1) for producing a gas-liquid mixture of chlorine dioxide and chlorine, a supply line (2, 3) of reagents, metering pumps (4, 5) for supplying reagents to the reactor, a safety valve (6 ), water-jet ejector (7), control unit (8).
  • the apparatus for producing an aqueous solution of chlorine dioxide and chlorine is additionally equipped with a check valve (9).
  • the non-return valve (9) is installed after the water-jet ejector (7) on the supply line of the obtained aqueous solution of chlorine dioxide and chlorine into the treated water.
  • the control unit (8) of the installation for the production of an aqueous solution of chlorine dioxide and chlorine includes a control system for the pressure of water entering the water-jet ejector (7), a vacuum control system in the reactor (1), a temperature control system in the reactor (1) and the surrounding reactor (1 ) environment, chlorine dioxide monitoring system.
  • the apparatus for producing an aqueous solution of chlorine dioxide and chlorine may additionally be equipped with a system for washing the reactor with water (1) (not shown in the drawing).
  • the apparatus for producing an aqueous solution of chlorine dioxide and chlorine may additionally be equipped with a water pressure reducer (10).
  • the apparatus for producing an aqueous solution of chlorine dioxide and chlorine may additionally be equipped with a flow meter (1 1), which is installed on the water supply line in front of the water-jet ejector (7).
  • the reactor (1) (RF patent for the invention ⁇ ° 2503614) contains a housing with supply lines (2, 3) of reagents, an outlet for outputting a gas-liquid mixture of chlorine dioxide and chlorine, located in the upper part of the housing and connected to a water-jet ejector (7).
  • the reactor vessel (1) and the circulation device are made in the form of a truncated cone.
  • the supply lines (2, 3) of reagents are located in the end part of the reactor vessel (1), are brought inside the circulation device, and are aligned with the axis of the vessel.
  • the best embodiment of the invention is described in order to the reactor vessel.
  • Installation for obtaining an aqueous solution of chlorine dioxide and chlorine works as follows. Water from the network through a pressure reducer (10) and a flow meter (1 1) is fed into a water-jet ejector (7), while a vacuum is created in the reactor (1). Then, the metering pump (4) from the container (12) through the valve (13) into the reactor (1) serves sulfuric acid, then the metering pump (5) from the container (14) through the valve (15) into the reactor (1) serves a solution of chlorate and sodium chloride. In the reactor (1), a chemical reaction occurs with the formation of an aqueous solution of chlorine dioxide and chlorine and gaseous chlorine dioxide and chlorine to obtain a gas-liquid mixture of chlorine dioxide and chlorine.
  • the gas-liquid mixture of chlorine dioxide and chlorine from the reactor (1) is removed by a water-jet ejector (7), in which this mixture dissolves in water supplied to the water-jet ejector (7) from the network to obtain an aqueous solution of chlorine dioxide and chlorine used for water treatment as a combined disinfectant.
  • the safety valve (6) relieves the excess pressure due to the release of excess gas-liquid mixture of chlorine dioxide and chlorine from the reactor (1), thereby eliminating the possibility of damage / destruction.
  • the safety valve (6) ensures the termination of pressure relief.
  • the non-return valve (9) installed after the water-jet ejector (7) on the supply line of the obtained aqueous solution of chlorine dioxide and chlorine into the treated water automatically passes the resulting aqueous solution of chlorine dioxide and chlorine towards the inlet point (not shown) in the treated water .
  • a check valve (9) installed after the water-jet ejector (7) on the supply line of the obtained aqueous solution of chlorine dioxide and chlorine in the treated water prevents the transfer of pressure of the treated water through the water-jet ejector (7) to the reactor (1).
  • the non-return valve (9) prevents the transmission through the water-jet ejector (7) to the reactor (1) of the column pressure of the obtained aqueous solution of chlorine dioxide and chlorine due to the difference in height the installation itself and the direct point of entry of the obtained aqueous solution of chlorine dioxide and chlorine into the treated water, since it does not allow a change in the direction of flow of the obtained aqueous solution of chlorine dioxide and chlorine, which eliminates the probability of damage / destruction of the reactor (1).
  • the presence of chlorine dioxide in the resulting aqueous solution of chlorine dioxide is monitored by a sensor (16).
  • the control unit (8) is used, which receives information about the temperature in the reactor (1) and the environment surrounding the reactor (1) from temperature sensors (17) and (18) through a meter-controller ( 19). Data on the pressure of the water supplied to the water-jet ejector (7) and the vacuum in the reactor (1) is supplied to the control unit (8) from the sensors (20) and (21) through the meter-regulator (22).
  • the control unit (8) controls the performance of the installation to obtain an aqueous solution of chlorine dioxide and chlorine, depending on the water flow rate, provides information on the main parameters of the operation mode of the installation (pressure of water entering the water-jet ejector (7), vacuum in the reactor (1), temperature in the reactor (1) and the environment surrounding the reactor (1), the presence of chlorine dioxide in the resulting aqueous solution of chlorine dioxide and chlorine) and controls the operation of the plant units as a whole (in particular, the operation of metering pumps (4, 5).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

L'invention se rapporte aux équipements chimiques permettant d'obtenir une solution d'oxydants contenant du chlore que l'on utilise en qualité de réactifs désinfectants pour la décontamination et le nettoyage de milieux potables, usés ou autres. L'installation pour produire une solution aqueuse de dioxyde de chlore et de chlore comprend un réacteur destiné à obtenir un mélange gaz et liquide de dioxyde de chlore et de chlore, des conduites d'amenée de réactifs, des pompes de dosage pour alimenter un réacteur en réactifs, une soupape de protection, une unité de commande et un clapet antiretour monté en aval de l'éjecteur de jets d'eau sur la conduite d'alimentation de l'eau à traiter en solution aqueuse de dioxyde de chlore et de chlore. Cette invention permet d'améliorer la fiabilité et l'efficacité d'utilisation de l'installation, de réduire la consommation d'énergie et le débit d'eau ainsi que de faire varier la productivité en cours de fonctionnement.
PCT/RU2015/000105 2014-02-25 2015-02-19 Installation de production d'une solution aqueuse de dioxyde de chlore et de chlore WO2015130195A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2014108755 2014-02-25
RU2014108755 2014-02-25

Publications (1)

Publication Number Publication Date
WO2015130195A1 true WO2015130195A1 (fr) 2015-09-03

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU65383A1 (ru) * 1941-04-09 1944-11-30 Б.М. Ремесницкий Вакуумный хлоратор
RU45378U1 (ru) * 2004-12-20 2005-05-10 Федеральное Государственное унитарное предприятие "Уральский научно-исследовательский химический институт с опытным заводом" /ФГУП "УНИХИМ с ОЗ"/ Установка для получения диоксида хлора
RU110083U1 (ru) * 2011-05-31 2011-11-10 Федеральное государственное унитарное предприятие "Уральский научно-исследовательский химический институт с опытным заводом" (ФГУП "УНИХИМ с ОЗ") Установка для производства водного раствора диоксида хлора и хлора

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU65383A1 (ru) * 1941-04-09 1944-11-30 Б.М. Ремесницкий Вакуумный хлоратор
RU45378U1 (ru) * 2004-12-20 2005-05-10 Федеральное Государственное унитарное предприятие "Уральский научно-исследовательский химический институт с опытным заводом" /ФГУП "УНИХИМ с ОЗ"/ Установка для получения диоксида хлора
RU110083U1 (ru) * 2011-05-31 2011-11-10 Федеральное государственное унитарное предприятие "Уральский научно-исследовательский химический институт с опытным заводом" (ФГУП "УНИХИМ с ОЗ") Установка для производства водного раствора диоксида хлора и хлора

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