JP4146369B2 - Multipurpose deaerator - Google Patents

Description

  The present invention relates to a system device for replacing polluted gas components with a degassed aqueous solution by removing volatile substances from industrial wastewater, leachate of waste landfill, soil, groundwater, etc. General-purpose type for the purpose of alkalinization due to carbon dioxide removal effect by decomposition of bicarbonate in water, sterilization due to generation of hydroxy radical, and environmental conservation obtained by decomposition and deodorization removal effect of organic inorganic compounds The present invention relates to a multipurpose deaerator.

  Conventionally, chemical treatment methods are generally used for the treatment of waste water and water, and the unit operations are based on pH adjustment, chemical aggregation, oxidation, reduction, ion exchange, electrolysis, extraction, etc. The method is selected and used according to the processing object.

  In general, coagulation sedimentation, filtration, microscreening, centrifugation, flotation separation and the like are mainly used for the treatment of suspended matter, but time, a large amount of chemicals and power are consumed for the treatment.

  For the treatment of organic matter, the activated sludge method and the aerated lagoon method are well known, but it is necessary to pursue sludge reduction with a stable and advanced purification technology, and the use of symbiotic bacteria and algae is necessary. Therefore, there is a problem that a vast site is required for the equipment.

  In addition, distillation methods, electrodialysis methods, ion exchange methods, reverse osmosis methods, etc. are widely used for the treatment of inorganic substances, but these treatment methods can be used in places where exhaust heat can be used, or in large quantities of contained ions. It is often effective in the case of wastewater contained, but for example, the activated sludge method requires labor and cost for a large amount of chemicals and long-term aeration treatment, and in the case of ion exchange resin Has a problem of generating a large amount of industrial waste because it requires cost for the regeneration and replacement of the resin, and in addition, in the case of a hollow fiber membrane, the membrane must be replaced early due to contamination of the membrane. ing.

  Currently, by devising treatment methods as described above, wastewater and effluent water are strictly regulated and efforts are being made to preserve the environment. Among these treatments, the treatment of persistent organic chlorine compounds, etc. In many cases, treatment of heavy metal contaminants is required, and special treatment is required for these treatments.

  In addition, by combining the process of degassing the dissolved gas in the water to be treated in a tank whose pressure has been reduced to a vacuum state, and the process of ion dissociation of the electroless metal salt in the water to be treated by an oscillating electromagnetic field It is a method of precipitating and removing mineral components in the water as a non-adhesive scale, or deaeration treatment of water to be treated with ultrasonic energy using a vacuum deaerator and pressurizing the deaerated water There is also known a vacuum deaeration system in which a deaeration process is added by adiabatic expansion in a decompression vessel.

JP 11-11319 JP 12-12640 JP 6-38959 JP-A-9-299709 JP 2000-325702 A JP 2001-246363 A JP 2003-181447 A

  Due to the high load of sewage treatment plants due to population concentration in cities in recent years, environmental pollution of groundwater around factories due to rapid industrial development, and drainage by livestock industry such as cattle and pigs around cities As a means to solve these complex problems regarding measures such as contamination of groundwater, we expect small-scale, easy-to-install, high-precision treatment that can deal with various pollution problems. The development of a deaerator that can be used is an urgent issue.

To summarize the requirements for such a high-precision processing device,
1. Providing a complete rotting mechanism that degrades proteins, hydrous carbon, fats, etc. produced by facultative anaerobic bacteria or obligate anaerobic bacteria that grow without oxygen.
2. Providing a treatment mechanism that can easily vaporize organic waste discharged at each factory and reduce BOD and COD.
3. Providing a high-precision treatment mechanism that can prevent eutrophication of water areas and easily decompose nitrogen compounds in wastewater from food factories, livestock piggeries, and the surrounding groundwater.

  When these requirements are summed up, the requirements can be combined with a single processing mechanism to provide multiple processing functions, and can be expected to be small and highly accurate processing that can be processed within a minimum amount of time at the source of contamination. In addition, industrial waste is not discharged, equipment costs and operation costs are low, and it is effective from the viewpoint of environmental conservation. However, at present, an apparatus that can satisfy such a demand has not yet been realized.

  As described above, various degassing treatment techniques exemplified in the above-mentioned patent documents are effective for the multipurpose degassing treatment work required in various fields. However, some problems still need to be solved.

  As an example of these problems, there is a problem of the water supply / drainage system before and after being processed by the degassing apparatus. Generally, in these deaeration treatment apparatuses, after the water to be treated has been deaerated by a vacuum deaeration apparatus, the treated water is sent to a water storage tank provided outside the deaeration treatment apparatus and stored. These water storage tanks will be used sequentially for various purposes such as boilers.

  For this reason, the degassing apparatus is replenished with new water to be treated from the outside, and the degassing process is continuously performed. However, these new to-be-treated water may be sent to an external water storage tank after being appropriately degassed by a degassing device, but the to-be-treated water is not completely degassed. When it is sent out, there is a problem that treated water and treated water are mixed in the water storage tank, and inappropriate treated water is supplied.

  Further, as another example, there is a problem of jet treatment in which water to be treated is jetted and collided toward a wall in the deaeration chamber decompressed to a high vacuum in the vacuum deaeration device. In this type of conventional jet treatment, a plurality of jet nozzles project radially from a cylindrical jet chamber, and water to be treated is jetted and collided from these jet nozzles toward the wall of the deaeration chamber. Then, bubbles dissolved in water are instantaneously destroyed by the impact force and instantaneous adiabatic expansion caused by the collision, and are collected and removed as a gas by a vacuum pump disposed above the deaeration chamber.

  When considering that the water to be treated is jetted and collided from the jet nozzle toward the wall of the room, the bubbles dissolved in the water are surely destroyed instantly by the impact force and instantaneous adiabatic expansion caused by the collision. I think that the. However, in reality, it can be considered that the bubbles are not destroyed from all of the collided water. Therefore, when analyzing the flow of water that collided with the wall surface in the deaeration chamber, first, the collided water is divided in the vertical direction along the wall surface, and the water flowing downward flows in a thin film shape along the wall surface. It turned out that the flowing water flows along the ceiling in the deaeration chamber toward the center of the ceiling and then flows down like a waterfall in the center of the deaeration chamber.

  In this case, the water flowing downward from the collision surface flows while forming a thin film along the wall surface of the room, and the bubbles are easily separated accurately by adiabatic expansion and low temperature boiling due to the impact force of the collision. Yes. On the other hand, the water that flows upward from the collision surface does not have a wall that flows down after flowing along the indoor ceiling toward the center of the ceiling. It will fall down indoors in the state, and it will be in the state where the bubble in water is hard to float on the surface. For these reasons, it has been found that the water flowing downward from the collision surface can be effectively degassed, but the water flowing upward from the collision surface has not been effectively degassed.

  In view of the problems of the conventional deaeration apparatus as described above, the present invention is a small scale capable of performing a complex processing function with a single processing mechanism and capable of processing within a minimum time at the source of contamination. The purpose is to provide a deaeration device that can be expected to provide high-precision processing, does not discharge industrial waste, has low equipment and operating costs, and is also effective in terms of environmental conservation. .

  The present invention has, as a specific means for that purpose, a main circulation path and a secondary circulation path that are switched by operation of both control valves between a pair of directional control valves provided on both sides of the water pump. The road is electrolyzed by applying electric energy, and the water to be treated is injected and collided against the wall surface in a high-frequency electrolysis apparatus that inclines to alkali and a deaeration chamber decompressed by a vacuum apparatus. Deaeration treatment device that allows the treated water to flow down without peeling from the wall surface, and ultrasonic irradiation that compresses and destroys the vapor cavities induced in the treated water to which ultrasonic energy is applied in the deaeration treatment device And a tank for storing the treated water degassed in the main circulation path and feeding the treated water to the main circulation path.

  The deaeration treatment in the main circulation path is a cylindrical deaeration treatment device in which electrical energy is applied to the pressurized high-pressure water to be treated by a high-frequency electrolyzer and then the water to be treated is decompressed to a high vacuum. Is supplied to the inside, and ultrasonic energy is applied by an ultrasonic irradiation device provided at the bottom of the deaeration treatment device, and this treated water is sprayed from the central portion of the deaeration treatment device toward the inner wall of the deaeration treatment device. In addition, the degassing process for separating the volatile substances in the water can be circulated and repeated continuously by causing the water flowing upward due to the collision to flow down without peeling from the wall surface. Is preferred.

  In addition, the main circuit is equipped with a water supply / circulation primary directional control valve and a circulation / drainage secondary directional control valve on both sides of the water supply pump. The primary treatment is completed, the secondary side direction control valve is circulated, and the water to be treated from the raw water tank is supplied to the deaeration treatment device through a high-frequency electrolysis device to perform a jet treatment. Then, the primary side directional control valve is circulated, the secondary side directional control valve is circulated, and the secondary jet process for continuing the circulating jet process by the degassing apparatus for a predetermined time is performed, and then the primary side directional control is performed. The valve is used for circulation, the secondary direction control valve is used for drainage, and the degassed treated water is transferred to the buffer tank by the auxiliary circuit, and the overflow water from this tank is returned to the raw water tank. It is preferable to adopt a configuration capable of performing tertiary processing.

  As a high-frequency electrolysis apparatus provided in the main circuit, a drive electrode in which a metal is coated with a high-grade dielectric and a metal tubular bare electrode that is coaxially covered with the drive electrode while maintaining a predetermined distance are used as a counter electrode. It is preferable that the device is an AC capacitor type device configured by applying a cross seeding current between two electrodes through which water to be treated passes between these electrodes.

  The deaeration treatment device provided in the main circulation path includes a cylindrical deaeration chamber and a cylindrical injection chamber provided coaxially in the central portion of the deaeration treatment device so as to be connected to the main circulation path. And an inner cylinder provided coaxially between the deaeration chamber and the injection chamber, and a plurality of injection nozzles projecting radially from the injection chamber, the deaeration chamber, the injection chamber, The upper end of the inner cylinder is closed by a common upper lid, the inner cylinder has a length such that the lower end extends to the vicinity of the water storage surface, and the spray nozzle penetrates the inner cylinder to remove the water to be treated. It is preferable to be configured to inject onto the peripheral surface.

  The injection chamber and the inner cylinder of the deaeration device are both set such that the lower ends extend to the vicinity of the water storage surface, and a long injection nozzle protruding from the injection chamber penetrates the inner cylinder and is treated with water. It is preferable that a short injection nozzle protruding from the injection chamber injects water to be treated onto the inner peripheral surface of the inner cylinder.

  In the present invention, the treated water degassed by the degassing device is stored in the buffer tank by the sub-circulation path, and when it becomes full, a part of it overflows and returns to the raw water tank. The water is a mixture of treated water and untreated water, but the water in this raw water tank is circulated and degassed again by the degassing device and sent to the buffer tank. Therefore, the treated water and the untreated water are not mixed with each other, and an appropriate deaeration treatment can be expected.

  Further, in the deaeration treatment apparatus, when the water to be treated is jetted and collided with the wall surface in the deaeration chamber, the water that flows below the collision part out of the collided water flows in a thin film shape along the wall surface. Will float and be easily removed from the water. On the other hand, the water that has flowed upward from the collision part flows along the wall surface to the ceiling, and then travels along the outer peripheral surface of the inner cylinder provided between the deaeration chamber wall surface and the injection chamber. Since it can be made to flow downward while maintaining the state, air bubbles can be accurately removed from the water that has flowed above the collision portion, and the deaeration process can be performed efficiently.

  When a cross-seeding current is applied between two electrodes, the high-frequency electrolysis apparatus is easily excited and converted into superoxide ions in the vicinity of the bare electrode because the dissolved oxygen is gasified by vacuum negative pressure. In the vicinity, hydrogen ions are reduced by an electrostatic reaction. As a result, hydrogen ions in water are reduced and water is inclined to alkali.

Furthermore, ultrasonic irradiation apparatus, the bubbles vaporous cavitation ultrasound, in order to induce the water in vacuum, for example, the water depth in the tank, the wavelength of integer times Tasu3/4 the wavelength of the ultrasonic wave When adjusted to, the vapor bubbles in the water are compressed at the compression points of the dense waves, and at that time, the bubbles are in an adiabatic compression state. At the moment of being crushed, the surrounding water rushes toward the center of the bubble all at once, and the collision of water launches a strong impact sound wave into the water.

  The high thermal energy generated at that time also results in a reaction that excites a large amount of the hydroxide ions formed by the high-frequency electrolysis apparatus into the unpaired electronic state of the OH radical. The powerful oxidizing power becomes sterilizing power and purifies water with less energy.

  In addition, when the water depth in the tank in the ultrasonic irradiation device is adjusted to a wavelength that is, for example, an integral multiple of the wavelength of the ultrasonic wave + about 1/2, volatile gas in water is trapped in the bubbles created by the gaseous cavitation, and the bubbles Since it breaks at the water surface, the volatile gas diffuses into the vacuum space. This reaction is suitable as a means for deaeration without increasing the water temperature. In other words, the means for adjusting the water depth according to the purpose of treatment enables selection of whether the treatment apparatus should be a heating type or a low temperature type. For example, as a sterilization treatment of raw milk, a new product Provide effective means for development of

According to the multipurpose degassing apparatus of the present invention, incorporating a deoxygenation process, for example, in the pretreatment stage of anaerobic fermentation is useful for aging anaerobic fermentation and reducing sludge. The energy of “bonding / dissociation” of ammonia in the gas phase is NH _3.
→ 3H, N ... 18.4 kj / mol and the dissociation energy of liquid phase water is 14.2 kj / mol. If it is adjusted according to the concentration of the substance and energy higher than its decomposition energy is supplied, the target inorganic and organic compounds are decomposed directly, and oxygen is generated by the decomposition. Can provide a means of high economic value.

Further, according to the multipurpose degassing apparatus of the present invention, a strong oxidizing power of OH radicals generated by high-pressure and high-temperature energy accompanying destruction of the high-frequency electrolysis apparatus and ultrasonic vapor cavitation can be obtained. Hydrogen can be separated and degassed directly from nitrogen oxides by force, so that it can be nitrogenized by shortening the processing steps and minimizing bad odors, and providing a degassing system with a high economic effect that does not require drugs.

  Furthermore, Cryptosporidium which has been a threat of infectious diseases by the decomposition of organochlorine compounds such as trihalomethane (THM) and tetrachloroethylene in leachate around the factory as a contaminant of groundwater, and contamination in groundwater around the city. However, according to the degassing apparatus of the present invention, ultrasonic steam cavities are compressed in water. Trihalomethane and tetrachloroethylene can be decomposed into carbon dioxide gas by the high pressure of shock wave induced by destruction, the impact force of high heat, and the strong oxidizing power of OH radicals.

  In the deaeration treatment device provided in the main circulation path, the injection nozzles protrude radially from the injection chamber, but as these injection nozzles, a long injection nozzle and a short injection nozzle protrude from the injection chamber, The long injection nozzle penetrates the inner cylinder and injects the water to be treated toward the inner peripheral surface of the deaeration chamber, and the short nozzle is configured to inject the water to be processed toward the inner peripheral surface of the inner cylinder, The water that is jetted from either the long or short nozzle and collides with the wall surface and then flows upwards flows while maintaining the state of the film along the inner cylinder and the wall surface of the injection chamber until it finishes flowing downward, and the bubbles are good. It is preferable that separation is possible.

  FIG. 1 is a flowchart showing a preferred embodiment of the multipurpose deaerator according to the present invention in the main circuit A and the sub circuit B, and FIG. 2 is a diagram schematically showing the form. The air device is provided with a primary directional control valve 3 and a secondary directional control valve 4 on both sides of a water supply pump 1 arranged in a pipe 2, and is switched by operation of these directional control valves 3, 4. A circulation path A and a secondary circulation path B are formed, and the main circulation path A includes a high-frequency electrolysis device 5, a deaeration treatment device 6 having a water level device 7, a vacuum pump 8, and an ultrasonic irradiation device. 9 is provided, and a buffer tank 10 and a raw water tank 11 are arranged in the sub-circulation path B, and a control device (not shown) that controls these devices collectively is provided. ing.

  The deaeration treatment device 6 provided in the main circulation path A can store a predetermined amount of water to be treated 13 inside, and has an upper end closed by an upper lid 14, and the inside is depressurized by an external vacuum pump 8. The deaeration chamber 12 configured as described above, a cylindrical injection chamber 15 projecting from the lower surface of the upper lid 14 to the center of the deaeration chamber 12, and the inner peripheral surface of the deaeration chamber 12 from the injection chamber 15 A long jet nozzle 16 a and a short jet nozzle 16 b each having a flat jet port, and an ultrasonic irradiation device 9 provided at the bottom of the deaeration chamber 12. It consists of and.

  In the deaeration processing device 6, an inner cylinder 17 having an upper end connected to the upper lid 14 is provided between the deaeration chamber 12 and the injection chamber 15 in the deaeration chamber 12. The lower end of the injection chamber 15 extends to the vicinity of a predetermined amount of the surface of the treated water 13 stored in the deaeration chamber 12. The long injection nozzle 16a protruding from the injection chamber 15 extends through the inner cylinder 17 to the outside of the inner cylinder, and injects water toward the inner peripheral surface of the deaeration chamber 12, The short injection nozzle 16 b is configured to inject water toward the inner peripheral surface of the inner cylinder 17.

  In the deaeration chamber 12, an exhaust pipe 18 having an intake hole located in the upper part of the room is provided, and the exhaust pipe 18 is connected to a vacuum pump 8 provided outside the deaeration chamber 12. The inside of the deaeration chamber 12 is put into a high vacuum negative pressure state by the pump 8.

  The primary treatment for flowing the treated water 13 sent from the water pump 1 to the main circulation path A and storing a predetermined amount of treated water 13 in the inner cylinder of the deaeration chamber 12 will be described. Is switched to the water supply port, and the secondary direction control valve 4 is switched to the circulation port, and the water 13 to be treated from the raw water tank 11 is fed into the high-frequency electrolysis apparatus 5 in the main circulation path A and electrolyzed, and the deaeration chamber The water is stored in 12 until a predetermined water level is reached.

  As shown in FIG. 3, the high-frequency electrolysis apparatus 5 is arranged such that a reference electrode 19 for setting a decomposition voltage of a target object that requires electrolysis is provided at a position sufficiently separated from an input terminal 20. The surface of the drive electrode 24 covered with the copper plate 23 by a Teflon (registered trademark) dielectric 22 to which a crossing current is applied through the input terminal 20 and the lead wire 21 and a predetermined distance from the drive electrode 24 are maintained. Thus, it is composed of an AC condenser type device in which a water channel 27 having an inlet 28 and an outlet 29 is formed between the surface of the counter electrode 26 made of SUS304 or copper metal arranged coaxially.

Since the high-frequency electrolysis apparatus 5 is provided in a high vacuum negative pressure system such as the degassing apparatus 6, the volatile gas component in the water is almost gas in the water passing through the apparatus. Circulate. Here, it is known that when the applied voltage of the drive electrode is set to a standard potential of 2.07 V or more, water is electrolyzed and reacts as follows.

^{_{O 3 (g) + 2H +}} + 2e - ⇔ O 2 (g) + H 2 O ··· + 2.07V

  Therefore, in order to advance the above reaction to the left, the electrode control potential is controlled to E> 2.07 or higher, the inside of the deaeration chamber is kept at a high vacuum, and the entire system in which water is circulated is subjected to a high vacuum negative pressure. It is necessary to gasify a gaseous component in water, for example, a dissolved oxygen component, in water. Then, when the reaction of the above formula is allowed to proceed to the left, superoxide ions are generated in water, and finally, ozone gas can be generated without irradiation with ultraviolet rays.

  At this time, when the exhaust amount of the vacuum pump is controlled to be increased, the oxygen concentration in the water is decreased, and when it is controlled to be reduced, the oxygen concentration can be increased. For this reason, it is necessary to adjust the degree of vacuum so that the reaction of the above equation tends to proceed to the left, but in this device, it is easily adjusted by adjusting the opening of the exhaust valve of the vacuum pump 8 can do.

  The water to be treated that has been treated by the high-frequency electrolysis device 5 is sent into the injection chamber 15 of the deaeration treatment device 6 through the pipe line 30 and is injected at high pressure into the deaeration chamber 12 from the injection nozzles 16a and 16b. As shown in FIG. 4, the water sprayed from the long spray nozzle 16 a out of the water spray by the spray nozzle collides with the inner peripheral surface of the deaeration chamber 12, and then flows below the collision portion; Divided into water flowing upward.

  The water flowing downward flows in a thin film along the inner peripheral surface of the deaeration chamber 12 and falls to the bottom of the deaeration chamber 12. On the other hand, the water that has flowed upward flows upward along the inner peripheral surface of the deaeration chamber 12, and then once changes the direction along the upper lid 14 toward the injection chamber 15, then It flows down while maintaining a thin film surface downward along the outer peripheral surface.

  Further, the water jetted from the short jet nozzle 16b collides with the inner peripheral surface of the inner cylinder 17, and then is divided into water that flows downward from the collision portion and water that flows upward. The water that flows in the form of a thin film along the inner peripheral surface of the inner cylinder 17, falls to the bottom of the deaeration chamber 12, and flows upward along the inner peripheral surface of the inner cylinder 17. After changing the direction along the upper lid 14 toward the injection chamber 15, the flow then flows downward along the outer peripheral surface of the injection chamber 15 while maintaining a thin film surface.

  In other words, in the treatment by the spray nozzle, all of the water that collides with the inner peripheral surface of the deaeration chamber 12 and the inner periphery of the inner cylinder 17 flows below the collision portion is a thin film exactly along the wall surface. Even water that has flowed upward from the impingement part is transmitted along the wall surface from the lower surface of the upper lid 14 through the outer peripheral surface of the inner cylinder 17 and the outer peripheral surface of the injection chamber 15 with force. It is possible to flow downward while maintaining the state. As a result, all the water to be treated sprayed from the spray nozzles 16a and 16b is expanded into a thin film without waste, and the gas components in the water are easily separated and diffused from the water in the deaeration chamber 12 having a low atmospheric pressure. 8 is exhausted.

  After a predetermined amount of treated water 13 is stored in the deaeration chamber 12, a control device (not shown) is operated to switch the primary side directional control valve 3 to the circulation port, and the treated water from the raw water tank 11. 13 is stopped, and the water 13 to be treated in the deaeration chamber 12 is sent from the water pump 1 through the pipe 30 to the main circulation path A to repeat the circulation.

  After a predetermined amount of water to be treated 13 in the deaeration chamber 12 has finished a predetermined deaeration process by circulation, a control device (not shown) is operated, and the primary direction control valve 3 is a circulation port, a secondary The side direction control valve 4 is switched to the drainage port, the treated water 13 treated by the main circuit A is transferred to the buffer tank 10 of the sub circuit B, and the overflow water from this tank is supplied to the raw water tank through the pipe 31. A tertiary process for returning to 11 is performed.

  In the multipurpose degassing apparatus of the present invention, as described above, the high-frequency electrolysis apparatus operating in a high vacuum negative pressure system and the ultrasonic vibration wave are adjusted so that vapor cavitation is induced in water. Thus, by their synergistic effect, a large number of .OH radicals can be generated in water and sterilized using their strong oxidizing power. In addition, the inorganic and organic chlorine compounds mixed in water are gasified by electrolysis, minimizing the generation of sludge and other waste, and reducing the BOD and COD in the discharged water to a minimum without chemicals. Can provide a small-scale device.

  Further, in the multipurpose degassing apparatus of the present invention, by adjusting the ultrasonic wave application method to the gaseous cavitation induction type, it is possible to reduce the destruction of bubbles in the water, and as a result, the water temperature rises too much. Without being able to degas harmful volatile gas components in water, it is possible to degas from process water of chemical factories, food factories and the like.

  Furthermore, the incorporation of a deoxygenation step as a pretreatment for anaerobic fermentation has the effect of successfully completing the fermentation, and in post-treatment of aerobic fermentation, addition of methanol or the like to supplement oxygen by decomposition of water. Since it can be omitted, there is an effect of saving a great deal of energy.

  In this deaeration processing device, all the water to be treated sprayed from the long jet nozzle and the short jet nozzle is expanded into a thin film without waste, and the gas components in the water are easily separated from the water in the deaeration chamber 12 having a low atmospheric pressure. The treated water deaerated by the deaeration treatment apparatus is stored in the raw water tank in the raw water tank by the sub-circulation path B, and already deaerated in the raw water tank. Since the degassed water is circulated and degassed, the degassed water can always be reliably sent into the buffer tank, and the untreated water is fed into the buffer tank. It is highly useful in that it does not cause the harmful effect of mixing.

The flowchart which shows the structure of the multipurpose deaeration apparatus which concerns on this invention. The system | strain explanatory drawing of suitable embodiment of the multipurpose deaeration apparatus which concerns on this invention. Explanatory drawing of the high frequency electrolysis apparatus used for this multipurpose deaeration apparatus. The fragmentary sectional view explaining the state of the flow of the water injected in the deaeration chamber.

Explanation of symbols

1: water pump,
2: pipeline,
3: Primary side directional control valve,
4: Secondary side directional control valve,
5: high frequency electrolysis device,
6: Deaeration device
7: Water level device,
8: Vacuum pump,
9: Ultrasonic irradiation device,
10: Buffer tank,
11: Raw water tank,
12: Degassing chamber
13: treated water,
14: upper lid,
15: Injection chamber
16a: long injection nozzle,
16b: short injection nozzle,
17: Inner cylinder,
18: exhaust pipe,
19: Reference electrode,
20: input terminal,
21: Lead wire,
22: dielectric,
23: Copper plate
24: Drive pole,
26: counter electrode,
27: Waterway,
28: Entrance,
29: Exit,
30, 31: piping,

Claims (5)

And a pair of directional control valves on each side of the water pump, the water pump and a pair of directional control valve and the main circulating path for deaerating the water to be treated by, by switching the pair of directional control valves A sub-circulation path for supplying treated water degassed in the main circulation path to the main circulation path ,
The main circulation path has a drive electrode in which a metal is coated with a high-grade dielectric, and a metal tubular bare electrode that is coaxially covered with the drive electrode while maintaining a predetermined distance. A high-frequency electrolysis apparatus configured by applying a cross-seeding current between two electrodes through which water to be treated is passed ,
A deaeration process in which water to be treated is jetted and collided with a wall surface in a deaeration chamber depressurized by a vacuum apparatus, and the water flowing upward from the collided water to be treated is maintained in a film state without being separated from the wall surface. With the device ,
The degassing treatment in the apparatus, with applying ultrasonic energy to the water to be treated, ultrasonic irradiation device to destroy by compressing vaporous cavity induced in the treated water that has been granted the ultrasonic energy Provided,
The multi-purpose deaerator according to claim 1, wherein the sub circuit includes a tank for storing treated water deaerated in the main circuit and feeding the treated water to the main circuit.   In the degassing treatment in the main circulation path, electrical energy is applied to the pressurized high-pressure water to be treated by a high-frequency electrolyzer, and then the water to be treated is depressurized to a high vacuum in the cylindrical degassing equipment. The ultrasonic energy is applied by the ultrasonic irradiation device provided at the bottom of the deaeration treatment device, and the water to be treated is sprayed from the central portion of the deaeration treatment device toward the inner wall of the deaeration treatment device. The deaeration process for separating the volatile substances in the water can be circulated and repeated continuously by causing the water flowing upward due to the collision to flow down into a film without peeling off from the wall surface. The multipurpose deaerator according to claim 1.   The main circuit is equipped with a water supply / circulation primary directional control valve and a circulation / drainage secondary directional control valve on both sides of the water supply pump. After finishing the primary treatment, the secondary side direction control valve is circulated, and the water to be treated from the raw water tank is supplied to the deaeration treatment device through a high-frequency electrolyzer to perform a jet treatment. The secondary side directional control valve is circulated, the secondary side directional control valve is circulated, and the secondary jet process for continuing the circulating jet process by the degassing apparatus for a predetermined time is performed, and then the primary directional control valve The secondary side direction control valve is drained, and the treated water deaerated by the secondary circulation path is transferred to the buffer tank, and the tertiary for returning the overflow water from this tank to the raw water tank. The multipurpose desorption according to claim 1 or 2, comprising a configuration capable of performing processing. Apparatus. That provided in the main circulation path path deaeration apparatus, cylindrical and degassing chamber, the main circulating path and connected to the way degassing device within the central portion coaxially provided a cylindrical injection to A degassing chamber, an injection chamber, and an inner cylinder provided coaxially between the deaeration chamber and the injection chamber, and a plurality of injection nozzles projecting radially from the injection chamber The upper end of the inner cylinder is closed by a common upper lid, the inner cylinder has such a length that the lower end extends to the vicinity of the water storage surface, and the spray nozzle passes through the inner cylinder to degas the water to be treated. The multipurpose deaeration device according to any one of claims 1 to 3, wherein the multipurpose deaeration device is configured to be jetted to an indoor peripheral surface. De deaeration apparatus, and the jetting chamber, an inner tube, as long as the lower end extends to the vicinity of the reservoir water level, the water to be treated through the inner cylinder is long injection nozzle protruding from the injection chamber The multipurpose deaerator according to any one of claims 1 to 4, wherein a short injection nozzle that injects into the inner peripheral surface of the air chamber and a short injection nozzle protruding from the injection chamber injects water to be treated into the inner peripheral surface of the inner cylinder. .

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