KR20140037787A - Nitrogen-treated-water generating device, nitrogen-treated-water generating method, nitrogen-treated water, and processing method for maintaining freshness of fresh fishery products processed by means of nitrogen-treated water - Google Patents

Abstract

In order to drastically improve the efficiency of reducing the amount of dissolved oxygen in the treated water, nitrogen gas is supplied to a circulating flow passage for circulating the fluid, a tank installed in the middle of the circulating flow passage to receive the treated water, and a treated water flowing out of the tank. The shearing force is applied to the gas-liquid mixture of the nitrogen gas supply part connected to the intermediate part of the circulation flow path and the nitrogen gas supplied from the nitrogen gas supply part to the treated water, and the nitrogen gas is formed into a bubble group having ultra-fine bubbles. And a fluid mixing treatment unit installed in the middle portion of the circulation flow path, wherein the treated water mixed with the bubble group discharged from the fluid mixing processing unit is refluxed in the tank to be dissolved in the treated water in the tank. By dissipating oxygen in the nitrogen gas formed by the fine bubbles, the fine nitrogen gas in which oxygen is dissipated is At the same time as the Sikkim it was shown to escape from the treated water.

Description

Nitrogen-treated water generation apparatus, nitrogen-treated water generation method, nitrogen-treated water, and leading maintenance treatment method of fish and fish food treated with nitrogen-treated water {NITROGEN-TREATED-WATER GENERATING DEVICE -TREATED WATER, AND PROCESSING METHOD FOR MAINTAINING FRESHNESS OF FRESH FISHERY PRODUCTS PROCESSED BY MEANS OF NITROGEN-TREATED WATER}

The present invention mixes the treated water for treating fish fish and the refined nitrogen gas to reduce the amount of dissolved oxygen in the treated water and to generate nitrogen treated water containing the refined nitrogen gas in the treated water. And a method for generating the nitrogen-treated water, and a freshness-retaining treatment method for fish and fish products treated by the nitrogen-treated water and the nitrogen-treated water. That is, nitrogen gas is formed into fine bubbles (hereinafter referred to as " nanobubbles ") having a nano level (1 μm or less) in diameter, and the nanobubbles are formed into nanobubble treated water in which the nanobubbles are mixed in the treated water. Therefore, the present invention relates to an apparatus capable of generating nitrogen treated water, a method of generating the nitrogen treated water, and a freshness maintaining treatment method of the fish treated fish produced by the nitrogen treated water and the nitrogen treated water. The nitrogen-treated water can be used for washing in pipes, etc., in addition to freshness of fish fish. As the treated water, tap water (tap water), sea water, brine (water made by adding a suitable amount of salt water to a salt concentration of 2.8% to 4%) and the like can be used.

As one form of the conventional nitrogen treatment water generating apparatus, the one disclosed in Patent Document 1 is as follows.

A nitrogen gas bombe for supplying nitrogen gas, a processed water tank for storing the processed water used for processing and marinating the fish food together with the fish food to be processed, and the nitrogen gas supplied from the nitrogen gas cylinder. Disclosed is a process water producing apparatus comprising a nitrogen gas dissolver for dissolving in process water stored inside a process water tank. And according to such a processed water manufacturing apparatus, it is possible to provide a processed water having a low dissolved oxygen amount.

Patent Document 1: Japanese Patent Publication No. 2007-282550

By the way, in the said process water manufacturing apparatus, since nitrogen gas is inject | poured into water, it is demonstrated that the amount of dissolved oxygen in water decreases from 4.99 DO to 1.36 DO, but it takes 3 hours and 30 minutes to reduce to this. And, throughout the 3 hours and 30 minutes, nitrogen gas is continuously injected into the water at 0.2 Pascal. This means that even if the amount of dissolved oxygen in the water decreases, since the nitrogen gas is unnecessarily released in large quantities compared to the amount of dissolved oxygen, the efficiency of reducing the amount of dissolved oxygen in the water is not necessarily good.

Therefore, in view of the above-mentioned problems, the present invention provides a device capable of greatly improving the efficiency of reducing the amount of dissolved oxygen in the treated water and producing nitrogen-treated water containing finer nitrogen gas, and the nitrogen-treated water. It is an object of the present invention to provide a method for producing and a freshness maintaining treatment method for fish fish and fish by the nitrogen treated water and the nitrogen treated water.

The nitrogen treatment water generating device according to the first aspect of the invention provides a circulating flow passage for circulating a fluid, a tank provided in a middle portion of the circulation flow passage to receive treated water, and a nitrogen gas supplied to the treated water flowing out of the tank. The shearing force is applied to the gas-liquid mixture of the nitrogen gas supply unit and the nitrogen gas supplied from the nitrogen gas supply unit connected to the intermediate portion of the circulation passage so that the nitrogen gas is formed into a bubble group having ultra-fine bubbles. It includes a fluid mixing processing unit installed in the middle portion of the circulation flow path to mix with the treated water,

The treated water in which the bubble group flowed out from the fluid mixing processing unit is mixed is refluxed into the tank to dissipate oxygen dissolved in the treated water in the tank to nitrogen gas formed into fine bubbles, thereby dissipating oxygen. The nitrogen gas is floated in the treated water, and at the same time, it is configured to escape from the treated water.

In the nitrogen-treated water generating device according to the first aspect of the invention, the fluid mixing processing unit faces a pair of plate-shaped mixing elements extending along the circulation passage in a polymerized state, so that the two mixing elements are disposed between the two mixing elements. While forming a mixing passage extending in the extending direction, the inlet hole formed at one side of the mixing element is connected to the start end of the mixing passage (a portion corresponding to the end portion described later), while the termination portion of the mixing passage is formed. The outflow hole formed in the opposite side of the mixing element is connected to the

The mixing flow passage may include a plurality of flow dividing portions that flow the fluid introduced from the inflow hole in an extension direction of the mixing flow passage, and a plurality of confluences of the fluids flowed from the flow dividing portion in the extension direction of the mixing flow passage and joining them. It is characterized by including a wealth.

Further, in the nitrogen-treated water generating device according to the first aspect of the present invention, a start end side temporary residence space is formed between the start end of the mixing flow passage and an inlet hole formed in one side of the mixing element, and the start end side. The temporary residence space is formed to be approximately the same width as the start end of the mixing flow path and communicates with the start end of the mixing flow passage over the entire width, while between the start end of the mixing flow path and the outflow hole formed at the opposite side of the mixing element. The end side temporary residence space is formed at the same time, and the end side temporary residence space is formed to have substantially the same width as the end portion of the mixing flow passage and is in communication with the end portion of the mixing flow passage over approximately the entire width.

The nitrogen-treated water generation method according to the second invention is a mixture of nitrogen gas and treated water which forms a group of bubbles having ultra-fine bubbles by applying shear force to the gas-liquid mixture of treated water and nitrogen gas and mixes the treated water with the treated water. The step of accommodating the treated water in which the bubble group obtained in the step, the nitrogen gas and the treated water mixing step is mixed into the tank, and the oxygen dissolved in the treated water accommodated in the tank in the receiving step is extremely fine. Dissipating the nitrogen gas formed by the bubble, it is characterized in that it comprises an oxygen escape step of causing the fine nitrogen gas dissipated oxygen to rise in the treated water and escape from the treated water.

The nitrogen-treated water according to the third invention mixes nitrogen gas formed into a bubble group having ultra-fine bubbles with the treated water in the tank, and stores oxygen dissolved in the treated water in the tank as a fine bubble. By dissipating the formed nitrogen gas, the fine nitrogen gas dissipated in oxygen is allowed to float in the treated water and escaped from the treated water.

In the freshness holding treatment method of the fish and fish food product which concerns on 4th invention, nitrogen gas formed into the bubble group which has an ultra-fine bubble is mixed with process water, and it accommodates in a tank, and is dissolved in the process water inside the tank. By dissipating oxygen into the nitrogen gas formed by the fine bubbles, the oxygen is released from the treated water while the fine nitrogen gas dissipated in the treated water is escaped from the treated water to generate nitrogen-treated water, and the fish is treated in the nitrogen-treated water. It is characterized by processing by immersing the stream for a certain time.

In the fourth aspect of the present invention, the fish and fish foods which have been treated by immersing in the nitrogen-treated water for a predetermined time can be accommodated in a receiving bag, degassed and sealed inside the receiving bag, and refrigerated in the degassing and sealing state. .

In the fourth aspect of the present invention, the fish and fish foods treated by being immersed in the nitrogen-treated water for a certain time can be frozen.

Hereinafter, the deoxygenation effect of water by venting nitrogen gas is demonstrated.

(1) About absorption (dissolution) of oxygen of water and oxygen dissipation in water which dissolved oxygen,

At 20 ° C (293K) and 1 atmosphere (0.1013 MPa), the solubility of pure oxygen and pure nitrogen in pure water is 44.4 g / m 3 (44.4 mg / L) and 19.4 g / m 3 (19.4 mg / L), respectively. The oxygen side is 2.3 times more soluble. Since the ratio of oxygen in the atmosphere is 21%, when air dissolves in water at 20 ° C. and 1 atmosphere, the solubility of oxygen is (44.4 × 0.21 =) 9.3 mg / L, and the solubility of nitrogen is (19.4 × 0.79 = 15.3 mg / L, and 1.7 times more dissolved in nitrogen. This is due to the difference in partial pressure of oxygen and nitrogen.

At 20 ° C and 1 atmosphere of a jig, oxygen is absorbed into water when pure water and nitrogen are brought into contact, and the oxygen concentration (dissolved oxygen concentration) in water is 9.3 mg / L (the concentration of nitrogen in water is 15.3 mg / L). When it stops, absorption stops and the gas-liquid equilibrates. That is, absorption of oxygen continues until the dissolved oxygen concentration reaches 9.3 mg / L. On the other hand, when water having a dissolved oxygen concentration of 9.3 mg / L is brought into contact with pure nitrogen, oxygen in the water moves to the pure nitrogen side (gas phase side). This phenomenon is called dissipation. If the amount of nitrogen on the gaseous side expands, the amount of oxygen dissipated is negligible and the oxygen partial pressure of the gaseous phase is kept at zero in appearance, oxygen dissipation continues until oxygen in the water is lost (dissolved oxygen concentration 0). Nitrogen is absorbed in water by the contact with pure nitrogen, and the nitrogen concentration in water increases to 19.4 mg / L.

(2) About nitrogen aeration in the water

의 물, 기포는 순질소기포의 기액접촉을 고려한다. 순질소 중의 산소분압은 0이므로, 액체 중에서 기포 중으로 산소가 방산된다. 다시 말하면, 용존산소가 질소기포로 거두어진다(산소방산). 기포의 용적은 유한하므로, 산소의 방산에 대해서 기포 중의 산소분압은 상승한다. 산소가 방산된 기포(나노버블 보다도 지름이 큰 기포)는 액체 중을 상승하고, 결국은 액체에서 탈출하지만(기포소멸), 액체가 충분히 깊으면 기포가 액체에 체류하는 사이에, 기포 중의 산소분압과 액체(물) 중의 산소 농도의 사이에서 평형(기액평형)이 성립한다. 이때, 산소의 방산은 정지한다. 그러나, 기액평형이 성립될 때까지 기포가 체재할 정도 액체의 깊이는 크지 않고, 오히려 현실적인 깊이의 수상(水相)에서는, 기액평형에 도달하기 훨씬 이전에 기포(나노버블 보다도 지름이 큰 기포)는 액체로부터 탈출한다.As a contact form of gas liquid, it becomes a bubble group in a continuous phase (liquid). The liquid has a dissolved oxygen concentration

For water and bubbles, consider the gas-liquid contact of pure nitrogen bubbles. Since the partial pressure of oxygen in pure nitrogen is zero, oxygen is dissipated into the bubbles in the liquid. In other words, dissolved oxygen is harvested by nitrogen bubbles (oxygen release). Since the volume of the bubbles is finite, the oxygen partial pressure in the bubbles increases with respect to the dissipation of oxygen. Oxygen-dissipated bubbles (bubbles larger in diameter than nanobubbles) rise in the liquid and eventually escape from the liquid (bubble extinction), but if the liquid is deep enough, the oxygen partial pressure in the bubble between bubbles stays in the liquid. Equilibrium (gas-liquid equilibrium) is established between and the concentration of oxygen in the liquid (water). At this time, oxygen dissipation is stopped. However, the depth of the liquid is not so large that the bubbles stay until the liquid equilibrium is established, but rather in the water phase of the realistic depth, the bubbles (bubbles larger in diameter than nanobubbles) long before reaching the liquid equilibrium. Escapes from the liquid.

인 물에 순질소를 통기하고, 순질소의 기포군을 분산시키면, 액체 중에 용해되어 있는 산소는 순질소 기포 중에 방산하므로, 저용존산소 농도의 물이 얻어진다. 질소의 통기를 지속하면, 수중의 용존산소농도를 더욱 감소시킬 수 있고, 최종적으로는 용존산소농도는 0까지 저하된다.Dissolved oxygen concentration

When pure nitrogen is passed through phosphorus water and the bubble group of pure nitrogen is dispersed, oxygen dissolved in the liquid is dissipated in pure nitrogen bubbles, so that water having a low dissolved oxygen concentration is obtained. If nitrogen aeration is continued, the dissolved oxygen concentration in water can be further reduced, and finally the dissolved oxygen concentration decreases to zero.

의 물을 유량 Li(㎥/h), 순질소를 유량 Ga(㎥/h)으로 연속적으로 공급하고, 유체혼합 처리부 내에서 기포군을 분산시킨 기액 2상류를 형성하여 용존산소를 질소기포군 중으로 방산시키면, 용존산소농도를 내린 물(용존산소농도 D0)을 1패스로 연속적으로 생성할 수 있다. 용존산소농도의 감소율

은, 유체혼합처리부의 설계변위를 일정하게 하면 물의 유량 Li 및 질소의 유량 Ga의 비 Ga/Li(기액비)에 의해 변한다(구마자와 히데히로, 니이미 토미오: 식품과 개발, Vol. 33, No. 3, pp. 54-55(1998). 「식품가공ㆍ제조에 대한 신규한 혼합, 분산 프로세서의 개발과 신정지형 혼합기 Ramond Stirrer VIII. Ramond Super Mixer의 기액혼합, 분산으로의 응용(20-방산」). Now, dissolved oxygen concentration in the fluid mixing process

Water was supplied continuously at a flow rate of Li (m 3 / h) and pure nitrogen at a flow rate of Ga (m 3 / h), forming a gas-liquid two-phase stream in which the bubble group was dispersed in the fluid mixing treatment unit. When it dissipates, the water (dissolved oxygen concentration D0) which lowered the dissolved oxygen concentration can be produced continuously in one pass. Decrease rate of dissolved oxygen concentration

When the design displacement of the fluid mixing treatment unit is made constant, it is changed by the ratio Ga / Li (gas-liquid ratio) of the flow rate Li of water and the flow rate of nitrogen Ga (Kumazawa Hidehiro, Niimi Tomio: Food and Development, Vol. 33). , No. 3, pp. 54-55 (1998), `` Development of a Novel Mixing and Dispersion Processor for Food Processing and Manufacturing and Application of the New Stopped Mixer Ramond Stirrer VIII.Ramond Super Mixer to Gas-liquid Mixing and Dispersion (20 -diffusion").

는 작게 되므로(감소율 1-The larger the gas-liquid ratio, the higher the residual oxygen residual rate.

Becomes small (decrease rate 1-

는 커진다), 목적에 따라서 기액비를 선택할 필요가 있다. 기액비가 큰 경우에는

의 값은 0.05 보다 작아진다. 예를 들면,

It becomes necessary to select the gas-liquid ratio according to the purpose. If the gas-liquid ratio is large

The value of becomes smaller than 0.05. For example,

는 0.45g/㎥까지 감소된다.If

Is reduced to 0.45 g / m 3.

(3) Nitrogen nanobubbles (Nanobubble nitrogen gas)

In general, nanobubbles have the potential to affect something at the cellular level on living organisms. Thus, the nitrogen nanobubbles do not stay on the surface of fish foods, such as fish and shellfish, and thus have an effect on the body, thereby lowering the aerobic performance of the body. Therefore, it is expected that at least the growth of aerobic bacteria in the body is suppressed. Nitrogen nanobubble-containing nitrogen treated water significantly suppresses the proliferation of palatable bacteria in the body as well as the surface of fish and maintains the freshness of fish (K is the index value of fish's freshness). You can expect to keep the value low). In addition, K value is the ratio of inosine (HxR) and Hypoxanthine (Hx) which occupies for the whole ATP compound. Since ATP of fish meat is decomposed | disassembled into the path | route ATP-> ADP-> AMP-> IMP-> HxR-> Hx, the freshness is good because the ratio of HxR and Hx is low. The K value suitable for the feeling of ash is less than 20%.

The present invention has the following effects. According to the present invention, nitrogen gas is passed through the treated water for treating fish food and the like, and the nitrogen gas is formed into a bubble group having ultra-small bubbles (nanobubbles). Thus, oxygen bubbles dissolved in the treated water are fine bubbles (nanobubbles). Nitrogen gas, which is dissipated with a larger diameter), is released from the treated water by floating the fine nitrogen gas dissipated in oxygen and escaped from the treated water (deoxygenation), and at the same time, a nitrogen gas formed by a very small bubble (nanobubble). The nitrogen-treated water mixed with (containing) in the treated water can be produced. In other words, the efficiency of reducing the amount of dissolved oxygen in the treated water can be greatly improved (for example, the amount of dissolved oxygen (DO value) in the 800 liter treated water is reduced to less than 1.0 (mg / L) for 25 minutes), Nitrogen nanobubbles can be contained to produce nitrogen-treated water with a reduced amount of dissolved oxygen. In addition, since such nitrogen-treated water contains nitrogen nanobubbles, the nitrogen nanobubbles do not remain on the surface of fish foods, for example, fish and shellfish, and have an effect on the body, thereby lowering the aerobic properties of the body. have. As a result, the nitrogen-treated water containing nitrogen nanobubbles remarkably suppresses the growth of aerobic bacteria that grow in the body as well as the surface of the fish and maintains the freshness of the fish. The indicator value keeps the K value low). Nitrogen nanobubbles are mixed (containing) in nitrogen-treated water for a long time because their particle diameters are too small, and nitrogen in the nitrogen nanobubbles is dissolved in the nitrogen-treated water over time, resulting in a supersaturation of the nitrogen dissolved water in the nitrogen-treated water. Can be. At this time, since the pressure added to the nitrogen bubble (bubble) is inversely proportional to the size of the nitrogen bubble, the pressure in the nitrogen bubble becomes large as the nitrogen bubble becomes ultrafine (nano). Therefore, nitrogen, which is a gas inside the nitrogen nanobubbles, is effectively dissolved in the treated water by the pressurizing action.

BRIEF DESCRIPTION OF THE DRAWINGS The conceptual explanatory drawing of the nitrogenous-processed water generation apparatus as 1st Embodiment by this invention.
2 is a control block diagram of a nitrogen treatment water generating device according to a first embodiment of the present invention;
3 is a conceptual explanatory diagram of a nitrogen treatment water generating device as a second embodiment according to the present invention;
4 is a process explanatory diagram of a third freshness keeping treatment method;
5 is a graph showing a reduced state of dissolved oxygen (DO value).
6 is a measurement result of dissolved oxygen amount (DO value).
7 is a K value measurement result of horse mackerel treated with the first freshness holding method;
8 is a general bacterium measurement result of horse mackerel treated with the first freshness holding method.
9 is a sensory test evaluation of the horse mackerel treated with the first freshness maintenance method 1.
10 is sensory evaluation evaluation of horse mackerel treated with the first freshness maintenance method 2.
Fig. 11 is a K value measurement result of horse mackerel and venezia treated by the second freshness holding method;
12 is a particle size distribution diagram of bubbles when distilled water and air are mixed with each other.
13 is an explanatory view of the front of a fluid mixing processing unit as the first embodiment;
FIG. 14 is a bottom view taken along line II of FIG. 13; FIG.
15 is a plan view taken along the line II-II of FIG. 13;
16 is an explanatory cross-sectional front view of a fluid mixing processing unit according to the first embodiment;
17 is an explanatory diagram of a mixed flow path formation pattern surface;
FIG. 18 is an explanatory diagram of a mixing flow path of a fluid mixing processing section as a first embodiment; FIG.
19 is an explanatory cross-sectional front view of a fluid mixing processing unit as a second embodiment;
20 is a cross-sectional front explanatory diagram of a fluid mixing processing unit as a third embodiment;
Fig. 21 is an explanatory diagram of a mixing flow path of a fluid mixing processing section as a third embodiment.
Fig. 22 is a cross-sectional front explanatory diagram of a fluid mixing processing unit as a fourth embodiment.
Fig. 23 is an explanatory diagram of a mixing flow path of a fluid mixing processing section as a fourth embodiment.
FIG. 24 is a sectional front explanatory view of the fluid mixing processing section as the fifth embodiment; FIG.
25 is an explanatory view of a partially cut away portion of a fluid stirring section as a first embodiment;
FIG. 26 is a cross-sectional bottom view taken along line III-III of FIG. 25;
FIG. 27 is an explanatory cross-sectional view taken along line IV-IV of FIG. 25;
FIG. 28 is an explanatory cross-sectional view taken along line VV in FIG. 25;
29 is an explanatory view of the bottom of a movable side stirring body;
30 is a plan explanatory view of the fixed side stirring body.
Fig. 31 is a bottom explanatory diagram showing a basic configuration of both side stirring bodies;
FIG. 32 is a cross-sectional explanatory diagram taken along the line VI-VI of FIG. 31;
33 is an explanatory view of a partially cut away portion of a fluid stirring portion as a second embodiment;
34 is an explanatory cross-sectional side view of the intermediate part of the fluid stirring part;
Fig. 35 is a cross sectional side view of the lower part of the fluid stirring part;
FIG. 36 is an explanatory cross-sectional view taken along the line VII-VII of FIG. 33;
FIG. 37 is a cross-sectional bottom view taken along the line VIII-VIII in FIG. 33; FIG.
FIG. 38 is a cross-sectional bottom view taken along line IX-IX in FIG. 33; FIG.
Fig. 39 is a bottom explanatory diagram showing a basic form of both side stirring bodies;

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[Explanation of Nitrogenated Water Generating Device According to First Embodiment]

A shown in FIG. 1 is a nitrogen-treated water generation apparatus by a first embodiment according to the present invention. The nitrogen-treated water generator A connects the proximal end of the circulation pipe J to the bottom of the tank T containing the treated water W, and the distal end of the circulation pipe J (the opposite end of the proximal end). ) Is immersed in the upper surface of the treated water (W) stored in the tank (T) to form a circulation flow path (R).

Treated water W is a solvent which dissolves pure nitrogen gas (for example, high purity nitrogen gas having a concentration of 99.99% or more) and is composed of low concentration oxygenated water (high concentration nitrogen treated water), and as treated water W, tap water (Tap water), sea water, brine, etc. may be used. The brine is a salt concentration of 2.8% to 4% by adding only an appropriate amount of brine. For example, saline having a salt concentration of about 3.5% can be applied.

A pressure pump (P) is mounted in the middle portion of the circulation pipe (J), and pure nitrogen gas is supplied to the middle portion of the circulation pipe (J) located near the suction port (upstream side) of the pressure pump (P). The nitrogen gas supply part N is connected.

The pure nitrogen gas supplied from the nitrogen gas supply unit N into the treated water W can be configured to be sucked into the pressure feed pump P by the ejector effect on the suction side of the pressure feed pump P. At this time, the intake amount of the pure oxygen gas can be set to about 3% (STP; 0 ° C, 1 atm) of the circulation flow rate of the treated water W flowing in the circulation pipe J.

In addition, the nitrogen gas supply part N is connected to the middle part of the circulation pipe J located in the vicinity of the discharge port (directly downstream) of the pressure feed pump P, and the nitrogen gas supply part N inside the circulation pipe J. By feeding the pure nitrogen gas into the furnace, it is possible to set the supply amount of the pure nitrogen gas to a predetermined amount larger than the suction amount of the pure nitrogen gas.

In the middle part of the circulation pipe J located downstream of the nitrogen gas supply part N, in this embodiment, the fluid mixing process part M which mixes gas which is a fluid, and a liquid is provided. The fluid mixing processing unit M flows the gas-liquid mixed phase (gas, the phase in which the liquid is mixed) of the treated water W and the pure nitrogen gas inside the meandering passage (snake-shaped flow path). A high shear force is applied to the treated water W forming a cluster of two water molecules, and thus the size of the treated water W cluster is reduced to a reformed treated water, and the reformed treated water and the pure nitrogen gas A high shear force is applied to the gas-liquid mixture to make up of low concentration oxygen treated water (high concentration nitrogen treated water) in which pure nitrogen gas is dissolved in reformed treated water as a solvent.

The nitrogen-treated water generation device A is provided with the treated-water supply part K which made it possible to supply the treated water W which is a solvent from time to time inside the tank T. As shown in FIG. In addition, a pressure regulating valve V is attached to the front end of the circulation pipe J. In the circulation pipe J, a heat exchanger H is disposed downstream of the fluid mixing processing unit M, and a high concentration of oxygen generated in the fluid mixing processing unit M by the heat exchanger H is provided. The treated water has a predetermined low temperature (for example, 1 ° C to 5 ° C). Then, the recovery section G disposed on the downstream side is configured to recover the high concentration oxygen treated water at a predetermined low temperature. The circulating pipe J is provided with a three-way selector valve Va disposed so as to be located downstream of the heat exchanger H. The highly concentrated oxygen treated water is supplied by the switching operation of the three-way selector valve Va. It is also possible to circulate only a predetermined number of times (for example, 20 times) or a predetermined time (for example, 25 minutes) in the circulation flow path R through the circulation pipe J, and it is recovered through the recovery pipe Jb. It is also possible to send to negative (G).

Dissolved oxygen amount detection means D is provided in tank T, and dissolved oxygen amount detection means D is made to detect the dissolved oxygen amount (DO value) of the treated water W in tank T. As shown in FIG. Moreover, the temperature detection means Ta is provided in the tank T, and the temperature detection means Ta is made to detect the temperature of the process water W accommodated in the tank T. As shown in FIG.

In the nitrogen-treated water generating device A, the control means C shown in FIG. 2 is comprised. The control means (C) has a control function like a personal computer and the like, and connects the dissolved oxygen amount detecting means (D) and the temperature detecting means (Ta) to the input side interface, while processing water supply unit (K) is connected to the output side interface. And a nitrogen gas supply section (N), a pressure pump (P), a heat exchanger (H), a pressure regulating valve (V), and a three-way switching valve (Va). Then, the control means (C) receives the detected information of the dissolved oxygen amount detecting means (D) and the temperature detecting means (Ta), respectively, and based on the detected information, the treated water supply part (K) and the nitrogen gas supply part (N). The control information is transmitted to the pressure feed pump P, the heat exchanger H, the pressure regulating valve V and the three-way selector valve Va, respectively, so that their operation is controlled appropriately.

With this arrangement, the nitrogen-treated water generating device A supplies pure nitrogen gas to the treated water W, which is provided with a circulation pump J in which a pressure pump P and a fluid mixing processing unit M are provided. ) And through the circulation passage (R) formed by the tank (J). At this time, the fluid mixing processing unit M exerts a shear force on the gas-liquid mixture of the treated water W and the pure nitrogen gas to form nanobubbles (ultra-fine bubbles having a diameter of nano level (1 μm or less)). The branch is formed into a bubble group and mixed with the treated water (W). By refluxing the treated water W containing such a bubble group in the tank T, oxygen dissolved in the treated water W inside the tank T is made of fine bubbles (diameter larger than nanobubbles). It can be dispersed in pure nitrogen gas.

In this way, fine pure nitrogen gas having oxygen dissipated can be floated in the treated water W, and oxygen can be released (deoxygenated) from the treated water W, that is, released into the atmosphere. As a result, the amount of dissolved oxygen in the treated water W can be greatly reduced, and it can be made of nitrogen treated water containing nitrogen nanobubbles. Then, the heat exchanger H is controlled by the control means C in the heat exchanger H based on the result of the examination of the temperature detection means Ta, and the treated water W is maintained at a predetermined temperature in the range of 1 ° C to 5 ° C. do. Further, the treated water (W) is controlled by the control means (C) by the pressure regulating valve (V) and the three-way switching valve (Va) based on the detection result of the dissolved oxygen amount detecting means (D). The inside of the circulating flow path is circulated only by the time or required number of times, and is treated with nitrogen.

In this first embodiment, as described above, the nitrogen gas can be formed into a bubble group having nanobubbles by the fluid mixing processing unit M. However, the treated water W is kept in the circulation passage R for a predetermined time (eg, For example, nitrogen nanobubbles can be increased by circulating for at least 25 minutes or a predetermined number of times (for example, 20 times). In addition, fine bubbles (diameter larger than nanobubbles) of oxygen dissolved in the treated water W until the time or the number of times to circulate the treated water W in the circulating flow path R reach a predetermined time or a predetermined number of times. The fine nitrogen gas dissipated in the treated nitrogen gas is floated in the treated water W to escape oxygen (deoxygenated) from the treated water W. Reduction of the dissolved oxygen amount can be realized.

Subsequently, by circulating the treated water W into the circulation passage R until a predetermined time or a predetermined number of times is reached, the amount of dissolved oxygen is reduced to generate nitrogen-treated water containing a large amount of nitrogen nanobubbles. Can be. Since the particle size of such nitrogen nanobubbles is too small, it can contribute to maintaining freshness of fish and shellfish, and it is incorporated (containing) in nitrogen-treated water for a long time, and nitrogen in nitrogen-nanobubble is added to nitrogen-treated water over time. It can melt | dissolve and can maintain the supersaturation state for the nitrogen dissolved amount in nitrogen treatment water for a long time.

[Explanation of Nitrogenated Water Production Method as First Embodiment]

Next, the nitrogen treatment water generation method according to the first embodiment will be described. In other words, the nitrogen-treated water generation method according to the first embodiment includes a nitrogen gas-treated water mixing step, a receiving step, and an oxygen evacuation step. In the nitrogen gas / treatment water mixing step, the fluid mixing treatment unit (M) exerts a shear force on the gas-liquid mixture of the treated water (W) and the pure nitrogen gas to form a bubble group having ultra-fine bubbles of pure nitrogen gas. It is a process of mixing with (W). An accommodation process is a process of accommodating the process water which mixed the bubble group obtained by the nitrogen gas and a process water mixing process in the tank T. The oxygen evacuation step is to disperse oxygen dissolved in the treated water W accommodated inside the tank T to pure nitrogen gas, which becomes a fine bubble. It is a process which makes it float in W) and escapes oxygen from the treated water W.

By such a nitrogen-treated water generation method, nitrogen-treated water can be produced in a short time. That is, the reduction efficiency of the amount of dissolved oxygen in the treated water W can be significantly improved. For example, the dissolved oxygen amount (DO value) in 800 liters of the treated water W can be reduced to less than 1.0 (mg / L) for 25 minutes and to about 0.5 (mg / L). That is, within one hour, a large amount of nitrogen-treated water of low concentration oxygen having a dissolved oxygen amount (DO value) of less than 1.0 (mg / L) can be generated.

[Description of Nitrogenated Water Generating Device According to Second Embodiment]

A shown in FIG. 3 is a nitrogen treatment water production | generation apparatus which concerns on 2nd Embodiment which concerns on this invention. The nitrogen-treated water generating device (A) includes oxygen dissipation and release promoting means (A1) and nitrogen nanobubble mixing promoting means (A2). In the nitrogen-treated water generating device A of the present embodiment, the oxygen dissipation / release promotion step by the oxygen dissipation / release promotion means A1 and the nitrogen gas ultrafineness by the nitrogen nano-blend mixing acceleration means A2. By sequentially passing through the two-step process of the promotion process, nitrogen treated water can be produced with good efficiency.

The oxygen dissipation / release promotion means A1 stores the treated water W supplied from the treated water supply part K in the tank T1, and arranges the fluid stirring part S in the treated water W. I install it. Then, the fluid stirring unit S causes the treated water W to act upon the gas-liquid mixture of the treated water W in the tank T1 sucked and the nitrogen gas supplied from the nitrogen gas supply unit N1, while applying the sheared water. By stirring, pure nitrogen gas is formed into fine bubbles (nitrogen microbubbles having a diameter larger than nanobubbles, for example, 50 µm to 100 µm) in the treated water W to be mixed therein. In the fluid stirrer S, the treated water W into which pure nitrogen gas is mixed is discharged into the treated water W in the tank T1, and the treated water W in the tank T1 is formed into a fine bubble. It becomes the treated water W containing the formed pure nitrogen gas. Further, the treated water W is stirred while applying shear force to the gas-liquid mixture of the treated water W containing pure nitrogen gas formed from fine bubbles and the pure nitrogen gas supplied from the nitrogen gas supply unit N1, thereby treating the treated water. Pure nitrogen gas is formed into fine bubbles in (W) to be mixed therein. U is a discharge pipe U vertically lowered from the bottom of the tank T1, and an on-off valve V1 is attached to the middle of the discharge pipe U. By opening / closing the valve V1, the treated water W in the tank T1 can be discharged into the tank T2 of the nitrogen nanobubble mixing promoting means A2 described later.

Dissolved oxygen amount detection means D1 is provided in tank T1, and dissolved oxygen amount detection means D1 is made to detect the dissolved oxygen amount (DO value) of the treated water W in tank T1. Moreover, the temperature detection means Ta1 is provided in tank T1, and the temperature detection means Ta1 is made to detect the temperature of the process water W in tank T1.

The nitrogen nanobubble mixing promoting means A2 is configured in the same manner as the nitrogen-treated water generating device A of the first embodiment. Then, the nitrogen treated water can be discharged (outflowed) from the tank T1 through the discharge pipe U to the tank T2. N2 is the nitrogen gas supply section and V2 is the pressure regulating valve.

Dissolved oxygen amount detection means D2 is provided in tank T2, and dissolved oxygen amount detection means D2 is made to detect the dissolved oxygen amount (DO value) of the treated water W in tank T2. Moreover, the temperature detection means Ta2 is provided in tank T2, and the temperature detection means Ta2 is made to detect the temperature of the process water W in tank T2.

Dissolved oxygen amount detecting means (D1, D2) and temperature detecting means (Ta1, Ta2) are connected to the input side interface of control means (C), respectively, while the motor portion (1) and nitrogen of fluid stirring part (S), which will be described later, The gas supply parts N1 and N2 are connected to the output side interface of the control means C, respectively. And the control means C receives the detection information of dissolved oxygen amount detection means D1 and D2 and the temperature detection means Ta1 and Ta2, respectively, and the motor part of the fluid stirring part S based on the said detection information. (1), the treated water supply part (K), the nitrogen gas supply part (N1, N2), the pressure pump (P), the heat exchanger (H), the opening and closing part (V1), the pressure regulating valve (V2), and the three-way switching valve (Va). Each control information is transmitted to the control unit so that these operations are optimally controlled. Then, the treated water (W) is heat exchanged by the control means (C) by the heat exchanger (H) on the basis of the detection result of the temperature detection means (Ta1, Ta2), so that the predetermined temperature in the range of 1 ° C to 5 ° C is achieved. maintain. Further, the treated water W is configured to open and close the pressure regulating valves V1 and V2 and the three-way switching valve Va by the control means C based on the detection results of the dissolved oxygen amount detecting means D1 and D2. It is controlled, and it circulates inside a circulation flow path only with a required time or a required number of times, and becomes nitrogen treatment water.

[Explanation of Nitrogenated Water Generation Method According to Second Embodiment]

Next, the nitrogen treatment water generation method according to the second embodiment will be described. That is, the nitrogen treatment water generation method according to the second embodiment has an oxygen dissipation and release acceleration step and a nitrogen gas ultrafine acceleration step. The oxygen dissipation / release promotion step, which is the step in the previous step, is a step of deoxygenating the treated water W to generate nitrogen treated water. In the above step, the pure nitrogen gas is formed into a nitrogen microbubble of 50 µm to 100 µm and mixed in the treated water W, for example, and the dissolved oxygen concentration can be efficiently reduced by the nitrogen microbubbles ( For example, DO value = 1 mg / L). As a result, deoxygenation of the treated water W can be realized efficiently. Nitrogen gas ultra-micron promotion process, which is a post-stage process, accumulates nitrogen nanobubbles in the nitrogen-treated water generated in the pre-stage process. In the above step, nitrogen nanobubbles of, for example, 50 nm to 900 nm can be efficiently stored in the nitrogen treated water, and the nitrogen nano treated water can be generated reliably. At this time, the dissolved oxygen concentration can be further reduced (for example, up to DO value = 0.5 mg / L).

More specifically, the oxygen dissipation / release promotion step is a step of treating with the oxygen dissipation / release promotion means A1, in which the process water W and the pure nitrogen gas in the tank T1 are fluidized. By mixing with stirring in the stirring part S, the density | concentration of the pure nitrogen gas contained in the treated water W can be raised. The oxygen dissolved in the treated water W in the tank T1 can be dissipated to pure nitrogen gas (nitrogen microbubbles) formed by fine bubbles, and the dissipation efficiency can be promoted. In addition, fine pure nitrogen gas in which oxygen is released can be floated in the treated water W, and oxygen can be efficiently released from the treated water W (deoxygenated), that is, efficiently released into the atmosphere. As a result, the dissolved oxygen amount in the treated water W can be greatly reduced.

The nitrogen gas ultrafine growth promoting step is a step of treating with nitrogen nanobubble mixing promoting means (A2), and in this step, the oxygen-discharged / released treated water (W), that is, the oxygen-dispersed / release-promoting means (A1). Thus, the dissolved oxygen in the treated water W is dissipated into nitrogen gas, and the treated nitrogen after the promotion of the release of oxygen gas into the atmosphere together with the nitrogen gas is treated again by the nitrogen nanobubble mixing promoting means A2.

In this way, it is possible to produce nitrogen treated water in which a large amount of nitrogen nanobubbles are contained (accumulated) in nitrogen treated water in which the amount of dissolved oxygen is greatly reduced. In the said nitrogen-treated water, since the particle size (for example, 50 nm-900 nm) of nitrogen nanobubbles is too small, nitrogen nanobubbles can be contributed to maintaining the freshness of a fish species. At this time, the nitrogen nanobubbles are mixed (containing) in the nitrogen-treated water for a long time, and nitrogen in the nitrogen nanobubbles is dissolved in the nitrogen-treated water over time. As a result, the nitrogen dissolved amount in the nitrogen-treated water is maintained in a supersaturated state for a long time.

[Fresh oil and fat keeping treatment method]

Next, a method for freshly maintaining (processing) fish fish with the nitrogen treated water generated by the nitrogen-treated water generating device A according to the first and second embodiments described above (fresh-keeping treatment method for fish fish) ] Will be described.

The freshness holding treatment method of fish fish is basically a method of treating fish fish food by immersing it in a nitrogen treatment water for a predetermined time. In this embodiment, the first to fourth freshness holding processing methods will be described.

In the first freshness holding method, nitrogen-treated water (in addition to slurry ice) may be filled into a box-shaped container such as a foamed styrol box in which a cover is formed, and the fish and fish fish in the nitrogen-treated water. Is immersed, and the box-shaped container is sealed in this immersion state, and the box-shaped container is refrigerated in the refrigerator.

In the second freshness holding treatment method, nitrogen-treated water is filled into an encapsulated container such as a vacuum polyethylene bag, the fish fish and the like are immersed in the nitrogen-treated water, and the encapsulated container is sealed in such an immersion state. The encapsulated container is a method of refrigeration in a refrigerator.

According to the third freshness holding treatment method, after immersing a fish fish food in nitrogen-treated water for a predetermined time (for example, 1 hour), the fish fish food is accommodated in a sealed container, and the inside of the sealed container is Degassing and sealing and refrigeration in a refrigerator in such a degassing and sealing state. The refrigerated constant temperature may be cooled and stored at a low temperature at which fish fish and fish are not frozen, and a preferable temperature is a temperature between 0 ° C and 4 ° C. The refrigeration time can be set within 192 hours according to the desired freshness of the fish or fish.

The third freshness holding method will be described in detail. As shown in Fig. 4, the preparation step (a) of preparing fish (Fi) and the prepared fish (Fi) as nitrogen are carried out. Fish (C) immersion step (b) of fish and fish immersed in the treated water (Wn), take-out step (c) for taking out the fish (Fi) in the nitrogen-treated water (Wn), and the fish (Fi) taken out the container (Ca) A degassing step (d) to be housed and degassed, a sealing step (e) for sealing the degassed fish (Fi) in the container (Ca), and a refrigerating step for refrigerating the fish (Fi) sealed in the container (Ca) f).

In the raw fish immersion step (b), nitrogen treated water (Wn) is filled in the immersion container (Ca) having an upper surface opening and having a volume capable of accommodating fish (Fi), and the fish (Fi) in the nitrogen treated water (Wn). Soak for a certain period of time. By doing this, nitrogen-treated water Wn can be penetrated deeply into the inside of the flesh of fish Fi. The immersion time (immersion time), which is a constant time, can be optimally set according to the type and size of the fresh fish. For example, it can be 30 to 150 minutes, Preferably it is 60 to 120 minutes.

In the degassing step (d), the fish Fi penetrated deeply to the inside of the flesh of nitrogen treated water Wn is contained in the container Ba, and the inside of the container Ba is degassed. Thereafter, in the sealing step (e), the container Ba is sealed. At this time, in the container Ba, the fish Fi are accommodated in advance, and after removing air, the container Ba is vacuum-sealed (vacuum seal). As the container Ba, a plastic bag (plastic bag) can be used. VP is a vacuum pump, Hp is the suction hose which connected one end to the vacuum pump VP, and the other end of the suction hose Hp is connected to the container Ba.

In the refrigerating step (f), the container Ba is refrigerated only in the refrigerator Re for example for a predetermined temperature of 0 ° C to 4 ° C and for a predetermined time within 192 hours.

The fourth freshness holding treatment method is a treatment method in which fish fish foods are frozen while being immersed in nitrogen water after the fish fish foods are immersed in a nitrogen treatment water for a predetermined time (for example, 1 hour). In other words, the fourth freshness holding treatment method is a treatment method including a freezing step after the preparation step (a) and the fish fish immersion step (b) for the third freshness holding treatment method. In the refrigerating step, a freezing treatment is performed in which fish fish and fish are frozen while being immersed in nitrogen-treated water at a normal freezing chamber temperature of -18 ° C. In this way, the oxidation of the fish and fish can be prevented, and the color tone and freshness can be maintained for 1 to 2 months.

In the fourth freshness holding treatment method, after immersing fish fish in nitrogen-treated water and immediately freezing, the time until the nitrogen-treated water is frozen can be regarded as immersion treatment time. For example, shellfish such as shrimp and crab are immediately frozen after being immersed in nitrogen-treated water.

Therefore, when the fish fish food is transported or exported for a long distance, the fourth freshness maintaining method can be applied, thereby reducing the commodity value of the fish fish food. In particular, crustaceans such as shrimp and crabs produce a large amount of melanin during thawing when frozen, and turn black.However, when frozen while soaked in nitrogen-treated water (Wn), melanin is not produced. It can be suppressed that the phenomenon which turns into black by suppressing it occurs. As a result, the value of the product of the crustacean can be maintained or improved for a certain time.

Next, as an example of the nitrogen-treated water generation device A according to the first embodiment, the results of the production of nitrogen-treated water and the experimental results of the first to third fresh water holding treatment methods are shown. In other words, about 0.8 m 3 of seawater treated with ultraviolet sterilization was used as treated water (W) as a production experiment of nitrogen-treated water. The tank T is a container having a volume of 1 m 3, the pumping pump P is a pump having an output of 7.5 kW produced by Kawamoto Co., Ltd., and the dissolved oxygen detection means D is manufactured by Iijima Electronics Co., Ltd. DO METER ID-100 and pH meter in (iii) used SK-620PH, a nitrogen gas supply part (N) manufactured by Sato Meter Co., Ltd., and commercially available nitrogen cylinders. The pressure pump (P) was operated for 25 minutes to circulate the mixed fluid of seawater and nitrogen gas in the circulation passage (R). At this time, the amount of seawater flowing through the circulation pipe J to the fluid mixing processing unit M is set to 200 or 150 (L / min), and the nitrogen gas amount is set to 5.0 (L / min). Nitrogen seawater with bubbles was produced. The results are shown in FIGS. 5 and 6. The dissolved oxygen amount (DO value) dropped from 6.30 (mg / L) to 0.40 (mg / L) for 25 minutes. This shows that oxygen escaped from seawater by nitrogen gas. It is estimated that nitrogen gas is dissolved in place of oxygen as it escapes. In addition, the salt concentration of nitrogen seawater at this time was 2.8%. In this experiment, the seawater temperature in the tank T was lowered by injecting slurry ice into the tank T from time to time.

Next, the result of having processed the nitrogen seawater produced | generated as mentioned above by the 1st freshness holding process is demonstrated. That is, nitrogen seawater was filled in a foamed styroline box having a cover, and the cover was covered after immersing the horse mackerel in the nitrogen seawater. Then, the foamed styrol box was stored in a refrigerator having a temperature of 2 to 3 ° C. In addition, the horse mackerel inside the foamed plastic box was tested at the Kitakyushu Living Science Center, a foundation corporation based in Japan, at the beginning, 4th, 6th, and 8th day. As a test method of K value, the ion exchange resin column absorbance measuring method was used (Hereinafter, the K value measurement of the resultant processed by the 2nd and 3rd freshness holding methods is also the same). The results of the experiments are shown in FIGS. 7 and 8.

As shown in Fig. 7, it was found that the horse mackerel can be used completely for ashing, with a K value of less than 20% by 6 days. Moreover, although it was 20.1% on the 8th day, as a result of sensuality and tasting, it was deliciously eaten also. As shown in Fig. 8, the number of bacteria was much smaller than 1 million / g to 100 million / g, which is the criterion for initial decay, and there was no problem until the 8th day. 9 and 10 are sensory test evaluations 1 and 2 on the 4th, 6th, and 8th days of the horse mackerel which had been freshly maintained. On the 4th and 6th days, the overall evaluation was very high, and on the 8th day, it was high as 3.5.

Next, the result of processing by the 2nd freshness hold processing method is demonstrated. That is, nitrogen seawater and fish produced as described above were put in a vacuum polyethylene bag and sealed in a state where air was removed as much as possible. In this embodiment, the horse mackerel and the benjari were put in separate vacuum polyethylene bags, and freshly maintained. Beginning in FIG. 11, day 4, day 5, day 7. The DO value, seawater temperature, salinity concentration, and K value for the 8th day are shown.

As shown in FIG. 11, when nitrogen seawater was sealed inside the vacuum polyethylene bag, it turned out that when DO value starts, it is lower than 0.8 mg / L, and can raise a DO value steadily. Sensory evaluation was carried out by 14 inspectors on fish on both horse mackerel and Venus. The sensory evaluation was almost the same on the fourth day, the fifth day, the seventh day, and the eighth day, and was as follows. The appearance of deterioration was low, and the discoloration of gills and the surface of the body was small, and it was in good condition. The quality of the body was good, the internal organs remained solid, there was no smell and freshness was maintained. When I cooked it, the color of the dark red part of the fish flesh (fish flesh in the spine) was also good (red hue was beautiful). As a result of the tasting, there was no smell, good texture, good taste, especially, horse mackerel was not thought to be fine, beautiful, and days passed. In the horse mackerel, there was no discoloration of the gill until the 7th day, but some discoloration was seen in the gill on the 8th day.

Next, the result of processing by the 3rd freshness hold processing method is demonstrated. That is, the nitrogen seawater produced as mentioned above was filled in the immersion container 12, and the horse mackerel and the benjari were immersed for 60 minutes in it. Nitrogen seawater temperature at this time was 2.0 degreeC, and DO value was 0.4 mg / L. Thereafter, the horse mackerel and the benza were respectively housed in separate containers 14 to degas the inside of the container 14, and at the same time, the container 14 was sealed. And the horse mackerel and the benji which were sealed in the individual container 14 were stored in the refrigerator of temperature 2-3 degreeC for 6 days. K value after storage for 6 days was 2.4% of horse mackerel and 5.6% of Benzari.

From this, it turned out that the leading indicator K value of a horse mackerel and a Venus can be maintained at the high precision of single digit numerical value for 6 days. In other words, when the horse mackerel and the benja were treated by the third freshness holding method, it was found that the horse mackerel and the benjama can be sufficiently eaten even after 6 days of treatment.

개/mL인 것을 알았다. Next, in the first embodiment to which the fluid mixing treatment unit M is applied as the first embodiment described later, the nitrogen-treated water generating device A mixes distilled water as the treated water W and air as the gas. The particle size distribution actual measurement example at the time of doing is shown in FIG. At this time, in the circulation / mixing process, the pressure of the pressure feed pump P was 1.2 MPa, the flow rate of distilled water was 3 L / min, the flow rate of air was 0.2 L / min, and the circulation time in the circulation flow path R was 3 minutes. . As a measuring instrument, LM10-HS of Nanosite Co., Ltd., UK was used. The measuring method by the said measuring device is a tracking method (taste method), and a measuring instrument is Japanese Quantum Design Co., Ltd. FIG. 12 shows the bubble diameter (nm) and bubble density (piece / mL) of the mixed air in terms of particle size distribution. From the measurement results, the mode diameter (diameter) (maximum frequency of bleeding particle diameter) was 120 nm, the median diameter (50% particle diameter) was 121 nm, and the bubble number density was

It turned out that it is dog / mL.

One volume of 120nm bubble around mode

개의 나노기포의 체적

Volume of nano bubbles

Therefore, the volume fraction of nanobubbles

), 질소처리수는 항산화 환경을 제공하게 된다. 즉, 질소처리수는 산화환원전위(ORP)에 영향을 준다(ORP를 억제한다). 그 결과, 저DO값(예를 들면, 0.5mg/L 이하)의 질소처리수는, 제균ㆍ항균작용을 가지고, 저산화성 환경을 제공한다.Thus, in nano water, which is the treated water W generated by the nitrogen-treated water generating device A of the first embodiment to which the fluid mixing processing unit M according to the first embodiment is applied, the mode diameter is 120 nm. There are about 700 million phosphorus nanoparticles / mL, and the volume concentration is about 1 ppm. In addition, nano bubbles coexist in the nano water, and the surface of the nano bubbles is negatively charged. As a result, the surface of the nano-bubbles is covered with electrons. Therefore, even in nitrogen nanobubbles, the bubble surface is negatively charged, and even if the number of nitrogen nanobubbles is about 1 ppm, the number of bacteria is much smaller than the number of nanobubbles (for example,

), Nitrogen treated water provides an antioxidant environment. That is, the nitrogen treated water affects the redox potential (ORP) (suppresses the ORP). As a result, the nitrogen-treated water having a low DO value (for example, 0.5 mg / L or less) has a bactericidal / antibacterial action and provides a low oxidizing environment.

Next, the structure of the fluid mixing process part M and the fluid stirring part S is demonstrated concretely, referring drawings.

[Configuration of Fluid Mixing Unit M]

[Fluid Mixing Treatment Part M According to First Embodiment]

As shown in Figs. 13 to 16, the fluid mixing processing unit M according to the first embodiment extends in one direction (left and right direction in this embodiment) and has a rectangular plate-shaped mixing element formed to be horizontally long as an upper and lower pair ( By confronting 210 and 220 in an overlapping state, a mixing channel 230 extending in the extension direction is formed between the mixing elements 210 and 220 on both sides.

The inflow side connecting portion 211 is formed at the left end of the mixing element 210. The inflow side connecting portion 211 opens one end to the left end face of the mixing element 210 and simultaneously opens the other end to the bottom surface of the left end of the mixing element 210. The inflow hole 212 formed at one end of the inflow side connecting portion 211 is detachably connected to the inflow side of the circulation pipe J. The other end of the inflow-side connecting portion 211 communicates with the start end of the mixing flow path 230 via the start end side temporary retention space 240 temporarily staying at the start end (relative meaning of the end described later).

Moreover, the outflow side connection part 213 is formed in the right end part of the mixing element 210. As shown in FIG. The outlet side connection part 213 opens one end to the right end surface of the mixing element 210, and opens the other end to the lower right end surface of the mixing element 210. As shown in FIG. The outlet hole 214 formed at one end of the outlet side connecting portion 213 is detachably connected to the outlet side of the circulation pipe J. The other end of the outflow side connecting portion 213 communicates with the end of the mixing flow path 230 via the staying space 250 temporarily staying on the end.

The mixing flow path 230 is formed on the upper surface of the mixing flow path forming pattern surface Pa composed of the concave portions 215 formed on the lower surface of the upper mixing element 210 and the lower mixing element 220. The mixed flow path forming pattern surface Pb constituted by one concave portion 225 is formed to face each other. Each of the mixed flow path forming pattern surfaces Pa and Pb is formed with a plurality of concave portions 215 and 225 having a regular hexagon with an opening shape and no gap between them, that is, a honeycomb shape. In addition, the concave portions 215 and 225 have a hexagonal opening shape having the same shape and the same size, and are arranged to face each other as shown in FIG. A plurality of flow dividing portions flowed in the extension direction of the mixing flow passage 230 and a plurality of confluence portions are formed by flowing the fluid classified in the flow dividing portion in the extension direction of the mixing flow passage 230.

That is, the mixed flow path forming pattern surface Pa has five rows in the width direction of the concave portions 215 of the mixing element 210 in a zigzag shape (deviated from each other) as shown by a dashed line in FIG. 17. ) Is formed by placing.

In addition, the mixed flow path forming pattern surface Pb has six rows of concave portions 225 of the mixing element 220 in the width direction and is arranged in a zigzag shape in the width direction, as shown by a solid line in FIG. 17. To form. And the center part of the recessed part 225 of the lower side mixed element 220 contacts the center position of the recessed part 215 of the mixing element 210 of the upper side in the state which is located. When contacted in such a state, the fluid (treated water W and nitrogen gas) is between the recess 215 of the upper mixing element 210 and the recess 225 of the lower mixing element 220 which are displaced from each other. ) Can be flowed. The corner part 226 is in the position where the corner parts of three recessed parts 225 gather. Moreover, the corner part 216 of the recessed part 215 of the upper mixing element 210 is also located in the center position of the recessed part 225 of the lower mixing element 220. The corner part 216 is in the position which the corner part of three recessed parts 215 gathered. In this case, each part 216 of the upper mixing element 210 functions as the above-mentioned sorting part and confluence part.

Thus, for example, considering the case where the fluid flows from the recess 215 side of the upper mixing element 210 to the recess 225 side of the lower mixing element 220, the fluid has two flow paths. It is classified into. That is, each part 226 of the lower mixing element 220 located in the center of the recess 215 of the upper mixing element 210 functions as a fractionation part for classifying the fluid. On the contrary, when the fluid flows from the lower mixing element 220 side to the upper mixing element 210 side, the fluid flowing in three directions flows into one recess 215 to join. . In this case, each part 226 located in the center of the mixing element 220 functions as a confluence part.

A start end side temporary retention space 240 is formed between the start end of the mixing passage 230 and the inflow side connecting portion 211 formed at the left side of the upper mixing element 210. The start-side temporary retention space 240 includes a concave space forming portion 241 formed on the lower surface of the left side of the mixing element 210 of the upper side, and a concave space forming portion formed on the upper surface of the left side of the mixing element 220 ( 242 is formed by facing up and down. And, as shown in FIG. 17, the width W1 of the front-back direction of the start-side temporary residence space 240 formed in the both side space formation parts 241 and 242 is the front-back direction of the start end part of the mixing flow path 230. As shown in FIG. It is formed to be substantially the same width | variety W2, and it communicates with the start end part of the mixing flow path 230 over the substantially full width of the start end side temporary holding space 240. As shown in FIG.

In addition, an end side temporary retention space 250 is formed between the end portion of the mixing passage 230 and the outflow side connecting portion 213 formed at the other side (the other portion) of the upper mixing element 210. . The longitudinal temporary residence space 250 has a concave shape forming portion 251 formed on the lower surface of the left side of the upper mixing element 210 and a concave shape formed on the upper surface of the right side of the lower mixing element 210. The space forming portion 252 is formed to face each other in the vertical direction. The width W3 in the front-rear direction of the terminal-side temporary retention space 250 formed by the both side space forming parts 251 and 252 is substantially the same as the width W4 in the front-rear direction of the end of the mixing flow path 230. It is formed in a width | variety, and it communicates with the terminal part of the mixing flow path 230 over the substantially full width of the terminal side temporary holding space 250. As shown in FIG.

260 is an upper threaded hole formed in a plurality of spaces around the upper mixing element 210, 261 is a lower threaded hole formed in a plurality of spaces around the upper mixing element 210. Each of the screw holes 260 and 261 is formed along an axis of the up and down direction, and the upper and lower screw holes 260 and 261 corresponding to the upper and lower sides are coupled with the screw 262, thereby combining both mixing elements 210 and 220. Simple and reliable connection in the state of polymerization. In addition, by detaching the screw, the connection between the both side mixing elements 210 and 220 can be easily released, and the concave portions 215 and 225 can be cleaned. 270 is an O-ring arrangement groove formed to surround the plurality of recesses 225 and the space forming portions 242 and 252 on the upper surface of the lower mixing element 220. 271 is an O-ring disposed in the O-ring placing groove 270. The O-ring 271 may ensure the sealing property between the mixing elements 210 and 220.

Thus, between both side mixing elements 210 and 220 arranged in mutually opposite states, the inflow side connecting portion 211, the start end temporary retention space 240, the mixing flow path 230 and the end side temporary retention space 250 are provided. And the outflow side connecting portion 213 communicate in series. As shown in FIG. 18, the fluid supplied from the inlet hole 212 of the inlet-side connecting portion 211 flows into the start-side temporary retention space 2401, and the width direction of the start-side temporary retention space 240 is increased. After flowing into the mixing passage 230 uniformly and flowing inside the mixing passage 230, it flows out of the outlet hole 214 of the outlet side connecting portion 213 through the end-side temporary residence space 250. At this time, in the mixing flow path 230, the fluid flows in a meandering state (curved like a snake) in the extending direction of both mixing elements 210 and 220 while repeating the dividing and merging (dispersion and mixing). Thus, for example, when a liquid and a gas are introduced into the mixing passage 230 as a fluid, the gas is uniformly dispersed in the liquid while the bubble diameter is ultrafine and uniformized to the submicron level (nano level).

[Fluid Mixing Treatment Part M According to Second Embodiment]

The fluid mixing processing unit M according to the second embodiment has the same basic structure as the fluid mixing processing unit M according to the first embodiment, but as shown in FIG. 19, a pair of upper and lower mixing elements 210 and 220 are shown. ) Is interposed between the mixing elements 210, 220 and one more intermediate mixing element 280 in a plate shape, and differs in that the mixing elements 210, 220, 280 are stacked. Do.

That is, the intermediate mixed element 280 forms the mixed flow path forming pattern surface Pb on the upper surface facing the mixed flow path forming pattern surface Pa of the upper mixing element 210, while the lower mixed element ( The mixed flow path formation pattern surface Pa is formed on the bottom surface facing the mixed flow path formation pattern surface Pb of 220. The mixing channel formation pattern surface Pa of the intermediate mixing element 280 is formed by arranging a plurality of recesses 281 having the same shape as the recesses 215 in an opposite state, and forming the intermediate mixing element 280. ) Is formed by arranging a plurality of recesses 282 having the same shape as the recesses 225 in the opposite state.

A space forming portion 243 is formed on the left side of the intermediate mixing element 280, and the space forming portion 243 penetrates in the vertical direction (thickness direction) and forms a space of the mixing elements 210 and 220. The parts 241 and 242 are aligned with each other. Further, the start forming side temporary retention space 240 is formed by the space forming portions 241 to 243. A space forming portion 253 is formed on the right side of the intermediate mixing element 280, and the space forming portion 253 penetrates in the vertical direction (thickness direction) and at the same time, the space of the mixing elements 210 and 220. It is in line with the forming portions 251 and 252. Further, the terminal forming temporary spaces 250 are formed by the space forming units 251 to 253. 283 is an O-ring arrangement groove, and 284 is an O-ring. A screw hole (not shown) corresponding to the screw holes 260 and 261 of the mixing elements 210 and 220 is also formed at the periphery of the intermediate mixing element 280, so that the screw 262 is formed in the screw hole. It is screwed through.

Thus, in the fluid mixing process part M of this embodiment, between the upper mixing element 210 and the intermediate mixing element 280, and between the intermediate mixing element 280 and the lower mixing element 220. Each mixing flow path 230 is formed, and the mixing flow path 230 which is vertically parallel is arranged in two flow paths. Then, the fluid supplied from the inlet hole 212 of the inlet-side connection portion 211 flows into the start-side temporary retention space 240, and the respective mixing flow paths are substantially equal in the width direction from the start-side temporary retention space 240. In parallel to 230. As a result, the fluid by the mixing flow path 230 becomes extremely fine, and uniformity is performed efficiently in parallel. In addition, by stacking a plurality of sheets required for the intermediate mixing element 280, the required number of mixing passages 230 can be arranged, so that the ultra-fine and uniform work of the fluid can be performed more efficiently.

[Fluid Mixing Treatment Part M as Third Embodiment]

The fluid mixing processing unit M as the third embodiment has the same basic configuration as the fluid mixing processing unit M as the first embodiment, but as shown in FIGS. 20 and 21, the upper and lower pairs of mixing elements 210 are illustrated. , 220, two interposed plate-like intermediate mixing elements 290 and 291 thinner than the mixing elements 210 and 220, respectively, and interposing the mixing elements 210, 220, 290 and 291, respectively. It differs in the point which is comprised by laminated state.

That is, the upper intermediate mixing element 290 forms a plurality of through holes 292 penetrating in the thickness direction, and the through holes 292 have a hexagonal shape that is the same as the plane shape of the concave portion 225. At the same time, a plurality of the mixed flow path forming pattern surfaces Pc are formed so that the planar shape matches the mixed flow path forming pattern surfaces Pb. In this way, on the upper and lower surfaces of the intermediate mixed element 290, the mixed flow path forming pattern surface Pc forming the mixed flow path 230 by facing the mixed flow path forming pattern surface Pa of the upper mixing element 210. To form. Further, the lower intermediate mixing element 291 forms a plurality of through holes 293 penetrating in the thickness direction, and the through holes 293 are hexagons that are the same shape as the planar shape of the concave portion 215. At the same time, a plurality of them are arranged to form a mixed flow path forming pattern surface Pd whose planar shape is aligned with the mixed flow path forming pattern surface Pa. In this way, on the upper and lower surfaces of the intermediate mixed element 291, the mixed flow path forming pattern surface Pd which forms the mixed flow path 230 by facing the mixed flow path forming pattern surface Pd of the lower mixing element 220. To form.

Space forming portions 244 and 245 are formed on left sides of the intermediate mixing elements 290 and 291, respectively, and the space forming portions 244 and 245 penetrate in the vertical direction (thickness direction). At the same time, the space forming portions 241 and 242 of the mixing elements 210 and 220 are also aligned with each other to form the start-side temporary residence space 240 by the space forming portions 241, 242, 244 and 245. Doing. Space forming portions 254 and 255 are formed at right sides of the intermediate mixing elements 290 and 291, respectively, and the space forming portions 254 and 255 penetrate in the vertical direction (thick direction). At the same time, the space forming portions 251, 252 of the mixing elements 210, 220 are aligned with each other, so that the end side temporary residence space 250 is formed by the space forming portions 251, 252, 254, 255. have. 294 and 295 are O-ring placement grooves and 296 and 297 are O-rings. In the periphery of the intermediate mixing elements 290 and 291, a screw hole (not shown) corresponding to the screw holes 260 and 261 of the mixing elements 210 and 220 is formed, so that the screw is provided in the screw hole. Screw it through.

Thus, in the fluid mixing processing part M of this embodiment, as shown in FIG. 21, between the upper mixing element 210 and the upper intermediate mixing element 290, and between the intermediate mixing elements 290 and 291. The mixing flow path 230 is formed between the intermediate mixing element 291 on the lower side and the mixing element 220 on the lower side and between the mixing elements 210 and 220 through the intermediate mixing elements 290 and 291, respectively.

In addition, the mixing flow path 230 becomes an unknown meandering flow path in which the fluid flows between elements. As a result, the fluid flowing through the mixing flow path 230 becomes a landing and a vortex, and meanders. Here, the landing is a flow in which the fluid flows while rubbing against the surfaces of the respective mixing elements 210, 220, 290, and 291 and the recesses 215 and 225 or the through holes 292 and 293. In addition, the pulse flow is a flow in which the flow path cross section changes periodically or irregularly.

Thus, for example, if a landing and a pulsation are repeatedly formed when a liquid and a gas flow into the mixing flow path 230 as a fluid, a locally high pressure portion and a locally low pressure portion are generated in the gas. In such a fluid, when a locally low pressure part (for example, a negative pressure part such as a vacuum part) occurs, a so-called foaming phenomenon occurs, gas may be generated in the liquid, and minute bubbles may expand (rupture). Then, a phenomenon called so-called cavitation occurs in which the generated gas (bubble) collapses (dissipates). Due to the force generated when such cavitation takes place, gas refinement proceeds and fluid mixing is promoted. As a result, the ultrafineness and uniformity of a fluid can be made more efficient.

[Fluid Mixing Treatment Part M in accordance with the fourth embodiment]

The fluid mixing processing unit M according to the fourth embodiment has the same basic structure as the fluid mixing processing unit M according to the first embodiment, but as shown in FIGS. 22 and 23, a pair of upper and lower mixing elements is shown. Between the 210 and 220, one intermediate mixing element 290 having a plate shape thinner than the mixing element 210 and 220 is interposed, and the mixing elements 210, 220 and 290 are formed in a stacked state. It differs in that point. The mixed flow path formation pattern surface Pa is formed on the upper surface of the lower mixing element 220 in place of the mixed flow path formation pattern surface Pb.

That is, as shown in FIG. 23, between the upper mixing element 210 having the mixed flow path forming pattern surface Pa and the lower mixing element 220 having the mixed flow path forming pattern surface Pa. The mixed flow path formation pattern surface Pa and the mixed flow path formation pattern surface Pc are faced to each other via the intermediate mixing element 290 having the mixed flow path formation pattern surface Pc on the upper and lower surfaces thereof.

Thus, in the fluid mixing processing part M of this embodiment, as shown in FIG. 23, between the upper mixing element 210 and the intermediate mixing element 290, the intermediate mixing element 290 and the lower mixing element ( The mixing flow path 230 is formed between the 220 and the mixing elements 210 and 220 through the intermediate mixing element 290, respectively. In addition, the mixing flow path 230 becomes an unknown and irregular meandering flow path between which elements the fluid flows. As a result, the fluid flowing through the mixing flow path 230 becomes a landing and a vortex to meander. Then, the fluid supplied from the inlet hole 212 of the inlet-side connection portion 211 flows into the start-side temporary retention space 240, and the respective mixing flow paths in the width direction are substantially evenly in the start-side temporary retention space 240 ( 230 in parallel. As a result, the ultrafineness and uniformity of the fluid by the mixing flow path 230 proceed efficiently in parallel.

[Fluid Mixing Treatment Part M According to Fifth Embodiment]

The fluid mixing processing section M according to the fifth embodiment has the same basic structure as the fluid mixing processing section M according to the third embodiment, but as shown in FIG. 24, a pair of upper and lower mixing elements 210 and 220 are shown. ), The mixing elements 210, 220, 280, 290, and 291 are laminated in a state of lamination through intervening intermediate mixing elements 280, 290, and 291 that are thinner than the mixing elements 210 and 220. The point is different.

That is, the fluid mixing processing unit M according to the present embodiment includes the upper mixing element 210 having the mixing flow path forming pattern surface Pa and the intermediate mixing element 290 having the mixing flow path forming pattern surface Pc. And the intermediate mixing element 291 having the mixed flow path forming pattern surface Pd, the intermediate mixing element 280 having the mixed flow path forming pattern surfaces Pb and Pa on the upper and lower surfaces, and the mixed flow path forming pattern surface Pc. The intermediate mixing element 290 having the structure, the intermediate mixing element 291 having the mixing flow path forming pattern surface Pd, and the mixing element 220 having the mixing flow path forming pattern surface Pb are laminated. The start end temporary staying space 240 is formed by the space forming parts 241, 244, 245, 243, 244, 245 and 242. The terminal temporary residence space 250 is formed by the space forming parts 251, 254, 255, 253, 254, 255, and 252.

By configuring in this way, two flow paths can be formed in parallel in the form of the mixing flow path 230 of the fluid mixing process part M which concerns on 3rd Embodiment. In addition, a plurality of flow paths can be formed in parallel by increasing the number of intermediate mixing elements 280, 290, and 291 interposed between the mixing elements 210 and 220 as necessary. As a result, the ultrafineness and uniformity of the fluid by the mixing flow path 230 proceed efficiently in parallel.

The fluid mixing processing unit M according to the first to fifth embodiments described above uses a single flow path 230 between the start end side temporary retention space 240 and the end side temporary retention space 250. Since a large number is formed in parallel and the fluid can flow into each mixing flow path 230 substantially equally, pressure loss can be reduced.

Further, as a modification, the thicknesses of the intermediate mixing elements 280, 290, and 291 and the diameters of the through holes 292 and 293 for the above-described second to fifth embodiments may be modified as appropriately differently. have. In this case, it is possible to have a change in the ultrafine and uniform efficiency of the fluid.

As a connection means of a pair of mixing elements 210 and 220, it is not limited to the screw of this embodiment, The modification can also be applied suitably. For example, by holding the two side mixing elements 210 and 220 in a crimped state by an element clamping body (not shown) such as a clamp band, sealing the circumference of the mixing flow path 230 and mixing the both sides. The mixing flow path 230 may be opened by releasing the compressed state of the elements 210 and 220. Further, the longitudinal edges on one side of the upper mixed element 210 and the lower mixed element 220 are rotatably mounted in both swinging door shapes to connect and disconnect the longitudinal edges on the opposite side. You can also connect freely. According to the connection means as a modification, the connection operation for connecting the mixing elements (210, 220) in a polymerization state and at the same time, the connection operation for releasing the mixing elements (210, 220) in an open state You can simply run Therefore, such a casement door structure is suitable when the cleaning operation | work of the mixing flow path 230 needs to be performed frequently.

[Configuration of Fluid Stirring Part S]

[Fluid Stirring Unit S According to First Embodiment]

FIG. 25 shows the fluid agitating part S according to the first embodiment. B is a low liquid part (part which stores a liquid). The liquid Li, such as water, is stored in the storage liquid portion B, and the fluid stirring portion S is disposed in the liquid Li. Lo is the bottom of the liquid storage part B. In addition, the liquid storage part B is not limited to the tank etc. which hold | maintains the liquid Li to be processed artificially, It can also include the lake etc. in which the liquid Li to be processed is naturally stored.

As shown in FIG. 25, the fluid stirring unit S interlocks the fluid stirring unit 20 to the lower end of the electric motor unit 1, and the pump chamber unit 60 to the lower end of the fluid stirring unit 20. It is connected and composed integrally. The pump chamber 60 driven by the motor unit 1 constitutes a cost-effective turbo pump. In this embodiment, the motor unit 1 and the pump chamber unit 60 are integrally liquid Li. It can be arrange | positioned and used in the inside.

The fluid stirring portion S thus constructed is disposed in the liquid Li to be treated, and the liquid chamber Li is sucked by the pump chamber portion 60 and discharged to the fluid stirring portion 20 side. At this time, different fluids (gas E in this embodiment) are sucked from the downstream side of the pump chamber part 60 and the upstream side of the fluid agitator 20 so that various kinds of fluids (liquid (Li in this embodiment) ) And gas (E) are pressurized toward the fluid agitator 20. And the liquid Li and the gas E which were pressurized by the fluid stirring part 20 are mixed and stirred by the fluid stirring part 20. FIG. As a result, a mixture of ultra-fine and uniform gas (E in this embodiment, a liquid mixed with ultra-fine bubbles) is produced, and the mixture is carried out to the required place.

Hereinafter, the structure of the fluid stirring part S is demonstrated more concretely with reference to FIGS. 25-32.

As shown in FIG. 25, the motor shaft 1 extends from the lower end surface portion 3 of the motor case 2 along the vertical axis in the downward direction. 5 is the electric cable. The plate-shaped attachment body 10 is connected to the lower end surface part 3 of the motor case 2 with the connection bolt 11. The attachment body 10 is configured by integrally connecting the fluid agitator 20 and the pump chamber 60 via a plurality of attachment bolts 12 (four in this embodiment) extending in the vertical direction. have. 17 is a carrying hose connected to the attachment body 10. The carrying out hose 17 is made to communicate with the stirring chamber 22 mentioned later, and to carry out a mixture. 25 to 18 are reinforcement members mounted on the attachment body 10 to support the fluid stirring portion S in the liquid Li. 19 is the attachment bolt.

As shown in FIGS. 25 and 26, the fluid stirring unit 20 forms a stirring chamber 22 inside the casing body 21, and the movable side stirring body that is a stirring body of one side in the stirring chamber 22 ( 23) and the fixed side stirring body 24 which is a stirring body on the other side are arrange | positioned and provided. The fluid stirring part 20 arrange | positions a required number (two in this embodiment) to the drive shaft 4 in the shape of the shape, and is a structure which mutually overlapped and communicated in a box shape.

As shown in FIG. 25, the casing body 21 has a cylindrical circumferential wall forming piece 25 along the axis in the vertical direction and a disk-shaped bottom portion provided at the lower end of the circumferential wall forming piece 25. It consists of the piece 26, and is formed in the box shape which opened the upper surface.

In the upper peripheral part of the circumferential wall formation piece 25, as shown in FIG. 25, the insertion recessed part 27 in which the end was formed is formed. The recess 27 for insertion is inserted downward from the lower surface of the attachment body 10 through an O-ring (not shown) through an insertion convex portion 13 having a step formed thereon. It is closely connected and is connected. The support part 28 which protrudes upward is formed in the center part position of the bottom part formation piece 26. As shown in FIG.

As shown in Figs. 25, 26 and 32, the support portion 28 has a cylindrical support piece 29 along an up-down axis and an inner side of the upper end inner circumferential surface of the support piece 29 inward. It is formed by the plate-shaped upper surface piece 30 formed in the protruding shape. On the upper surface piece 30, the disk-shaped support main piece 31 is connected in the polymerization state by the connecting bolt 32. The outer diameter of the support main piece 31 is formed substantially the same as the outer diameter of the fixed side stirring body 24. 33 and 34 are communication holes formed in the upper surface piece 30 and the support main piece 31, respectively, and the communication holes 33 and 34 also function as insertion holes through which the drive shaft 4 is inserted.

The axial position of the stirring chamber 22, ie, the axial position of the circumferential wall forming piece 25, is deflected by a predetermined width with respect to the axial position of the drive shaft 4 as shown in FIG. In this embodiment, the width | variety is shifted by the width | variety of about sixth of the outer diameter of the fixed side stirring body 24. As shown in FIG.

In the middle part of the drive shaft 4, as shown in FIG. 32, the rotation center part of the disk-shaped movable side stirring body 23 is provided. The movable side stirring body 23 is configured to be rotatable integrally with the drive shaft 4. In the position immediately below the movable side stirring body 23, as shown in FIG. 32, a fixed gap t (for example, around 1 mm) is provided and the disk-shaped fixed side stirring body 24 is placed in a facing state. I arrange it and install it. The inlet 35 is formed at the center of the fixed side stirring body 24, and the stirring passage 36 is formed in the radiation direction from the inlet 35 of the central part between the both side stirring bodies 23 and 24. Doing. In the stirring chamber 22, the liquid Li and the gas E are mixed and stirred by both stirring bodies 23 and 24, and the liquid of the ultra-fine bubble mixing as a mixture is produced | generated.

The movable side stirring body 23 and the fixed side stirring body 24 are demonstrated concretely with reference to FIGS. 29-32.

As shown in FIG. 29, the movable side stirring body 23 except the center part 41 and the outer peripheral part 42 of fixed width in the lower surface of the movable side main body 40 formed in the disk shape of fixed thickness. , Radially and circumferentially arranged, and when viewed from the bottom, the concave portion 43 for forming a flow path, which is hexagonal, is formed squarely and densely to form a honeycomb (honeycomb) shape.

And as shown in FIG. 32, the center part 41 of the movable side main body 40 is made into the same surface as the lower surface of the flow path formation recessed part 43, while the outer peripheral part 42 is the recessed part for flow path formation. It is set as the same surface as the upper surface of (43). In addition, the drive shaft insertion hole 44 is formed at the upper surface center position of the movable side main body 40, and the cylindrical connecting piece 45 is formed on the upper surface of the movable side main body 40 with the drive shaft insertion hole 44. It connects and is connected integrally. 46 is a bolt hole formed so as to penetrate transversely to the intermediate part of the cylindrical connection piece 45, 47 is a fixed bolt, the intermediate part of the drive shaft 4 was fitted into the cylindrical connection piece 45, and a bolt hole ( The fixing bolt 47 is screwed to the cylinder 46 to fix the cylindrical connecting piece 45 to the drive shaft 4.

The fixed-side stirring body 24 flows into the center part of the fixed-side main body 50 formed in substantially the same shape as the said movable side main body 40, ie, about the same thickness, and about the same outer diameter, as shown in FIG. Opening the inlet 35 as a part through the up and down direction, and arranged in the radial direction and the circumferential direction except the outer peripheral portion 52 of a predetermined width on the upper surface of the fixed-side main body 50, when viewed from the bottom The hexagonal flow path formation recess 53 is squarely and precisely formed into a honeycomb shape. In addition, the shape of the channel | path formation recessed parts 43 and 53 is not limited to a hexagon from a bottom view. For example, it can also be formed in concave hemispherical shape.

And the fixed side stirring body 24 is connected in the superposition | polymerization state by the connection bolt 55 on the support body piece 31 provided in the support part 28 as shown in FIG. The inflow port 35 of the fixed side stirring body 24 is connected to the communication holes 33 and 34, and is comprised.

As shown in FIG. 31, the flow path formation recesses 43 and 53 formed in the both side stirring bodies 23 and 24 are faced in the state which shifted position as a basic form. That is, the center of three adjacent flow path formation recesses 43 is located in the center of one flow path formation recess 53 facing each other, and the adjacent three flow path formation recesses 53 are formed. The central part is located in the central part of one flow path formation recess 43 facing each other, and between the two flow path formation recesses 43 and 53, liquid Li and the base body E which are agitated are 1 One flow path is divided (dispersed) into two flow path formation recesses 53 or 43 facing from the two flow path formation recesses 43 or 53, and one faced from the two flow path formation recesses 43 or 53. In order to join (gather) the concave portions 53 or 43 for the flow path formation, a stirring flow path 36 flowing in the radial direction while meandering (flowing in a curved manner) is formed.

Then, between the outer circumferential portion 42 of the movable side stirring body 23 and the outer circumferential portion 52 of the fixed side stirring body 24, an outlet opening 38 is opened as an outlet portion over the entire circumference of the outer circumferential edge. Forming. The mixed / stirred mixture flows out of the outlet port 38.

In both side stirring bodies 23 and 24 having such a basic form, as shown in Figs. 31 and 32, the movable side stirring body 23 has a fixed distance t from the fixed side stirring body 24. It is rotated integrally with the drive shaft 4 in the supported state in the rotational direction (X, clockwise when viewed from the top).

Therefore, the liquid Li and the gas E which are agitated are meandered inside the stirring flow passage 36 from the inlet 35 at the center side toward the outlet 38 at the outer circumferential edge side by centrifugal force. It flows in a radiation direction repeatedly, dividing (dispersing) and merging (aggregating), and are discharged | emitted from the outlet 38 formed in the peripheral edge part.

The gas E and the liquid Li flowing in the meandering direction undergo a shearing action in the meandering direction and a cutting action in the rotational direction X of the movable side stirring body 23. As a result, the liquid (Li) and the gas (E) flow while undergoing shearing and cutting actions in the joint direction of the meandering direction and the rotational direction (X). Ultra-fineness and uniformity are realized solidly.

In addition, since the movable side stirring body 23 and the fixed side stirring body 24 are relatively displaced around the shaft center, the one-side flow path forming recess 43 and the counter-side flow passage forming recess 53 face each other and communicate with each other. The area changes periodically. That is, it is classified (distributed) into two flow path formation recesses 53 or 43 facing from one flow path formation recess 43 or 53, and faces from two flow path formation recesses 43 or 53. The communication area at the time of joining (gathering) into one flow path forming recess 53 or 43 changes periodically. Accordingly, the liquid Li and the gas E, which are to be stirred, repeat the pulse. A pulse flow is a flow in which a flow path cross section changes periodically. And when a pulse is repeatedly formed, a local high pressure part and a local low pressure part generate | occur | produce in a flow path. Among these fluids, when a low pressure part (for example, a negative pressure part such as a vacuum part) occurs locally, a so-called foaming phenomenon occurs, gas is generated in the liquid, and micro bubbles expand (break). A phenomenon called so-called cavitation occurs in which the generated gas (bubble) collapses (dissipates). Due to the force generated when such a cavitation phenomenon occurs, gas refinement proceeds and fluid mixing is promoted.

In this embodiment, as shown in FIG. 25, the lower part of the said casing body 21 fits with the insertion recessed part 27 in which the stage was formed in the casing body 21 formed in the same shape via the O-ring. The two fluid agitators 20 and 20 are connected in close contact with each other.

The pump chamber part 60 forms the pump chamber 62 inside the casing body 61, as shown in FIG. 25, FIG. 27, and FIG. The impeller 63 is disposed and installed inside the pump chamber 62, and the center of the impeller 63 is attached to the lower end of the drive shaft 4.

As shown in FIG. 25, the casing body 61 mounts the cylindrical circumferential wall formation piece 64 along the up-down direction axis | shaft on the disk-shaped bottom part formation piece 65, and has an upper surface opening. It is formed into a box shape. And the lower end part of the circumferential wall formation piece 64 is comprised by attaching and detaching to the groove part 81 formed in the circumferential edge part of the bottom part formation piece 65 freely. An upper end circumferential edge portion of the circumferential wall forming member 64 is provided with a fitting recess 66 formed with a step. 85 is a cylindrical support angle piece integrally molded with the peripheral part of the lower surface of the bottom formation piece 65. 86 is a plurality of inflow openings formed in the circumferential wall of the support angle piece 85, and the liquid Li inside the liquid storage part B is sucked into the intake port 70 through each inflow opening 86. As shown in FIG.

The fitting recessed part 66 in which the stage was formed is comprised in the lower part of the casing body 21 located in the lowest stage, as shown in FIG. 25, and fits from below through an O-ring (not shown in figure). It is in close contact with each other. The bearing part 67 which receives the lower end part of the drive part 4 is comprised so that it may protrude below in the center part position of the bottom part formation piece 65. FIG.

As shown in FIG. 25, FIG. 27, and FIG. 28, the impeller 63 is arrange | positioned so that it may rotate integrally with the drive shaft 4 on the bottom part formation piece 65, and is installed above the bearing part 67. FIG. . The bearing part 67 is comprised from the cylindrical circumferential wall formation piece 68 along the axis of an up-down direction, and the disk-shaped bearing formation piece 69 comprised in the lower end of the circumferential wall formation piece 68. As shown in FIG. A plurality of suction ports 70 are formed in the circumferential wall forming piece 68 at intervals in the circumferential direction. Then, the suction flow passage 71 for sucking the fluid into the pump chamber 62 through the suction port 70 by the rotation of the impeller 63 is formed. In the bearing part formation piece 69, the recessed part for hinge was formed, and the lower end part of the drive shaft 4 is supported by the bearing 72 provided in the hinged recess so that rotation is possible.

On the bottom part formation piece 65, as shown in FIG. 25 and FIG. 28, the swirl flow guide body 73 is integrally formed. The swirl flow guide body 73 has a guide side surface 82 for guiding a fluid to be swung by the rotation of the impeller 63 in the pivot direction, and the guide side surface 82 is formed by bending in the guide direction. The swirl flow passage 74 is formed along the swirl flow guide 73. The discharge flow path forming body 75 is formed on the swirl flow guide body 73.

As shown in FIG. 25 and FIG. 27, the discharge flow path forming body 75 is comprised with the disk-shaped shielding piece 76 which shields the upper part of the impeller 63 directly, and the said shielding piece 76 is at the lowest end. It is comprised by being supported by four mounting pieces 77 mounted in the shape which descend | falls perpendicularly from the bottom part formation piece 26 of the casing body 21 located. And the discharge flow path 78 which flows up and down along the drive shaft 4 and the drive shaft 4 between the shielding piece 76 and the bottom part formation piece 26 is formed. 79 is a screw.

The upstream end of the turning passage 74 communicates with the downstream end of the suction passage 71, and the upstream end of the discharge passage 78 communicates with the downstream end of the turning passage 74, thereby The downstream end communicates with the communication holes 33 and 34 of the fluid stirring part 20 located at the lowest end, and the communication holes 33 and 34 communicate with the stirring flow path 36. The communication holes 33 and 34 communicate with the communication passages 33 and 34 of the second-stage fluid stirring unit 20 via the communication passage 80, and the communication holes 33 and 34 communicate with the stirring passage 36. As a result, a series of continuous flow passages communicating with the discharge hose 17 are formed. Mixing and stirring are ensured in two stirring passages 36 with respect to these continuous passages.

In FIG. 25, FIG. 27 and FIG. 28, 87 is the blade-shaped locking piece which protruded outward from the upper part of the support angle piece 85. As shown in FIG. The locking piece 87 is formed with four bolt insertion holes 89 penetrating in the vertical direction at intervals in the circumferential direction. A female screw portion formed in the mounting body 10 by inserting the mounting bolts 12 into the bolt insertion holes 89 from the lower side so that the head of each of the mounting bolts 12 is caught by the locking piece 87 from below. By screwing the male screw part 15 formed in the front end part of the mounting bolt 12 to 14, the two fluid stirring parts 20 and 20 are connected between the electric motor part 1 and the pump chamber part 60. To be fitted. 88 is a reinforcement piece.

In this way, the fluid stirring part S can release | release the engagement state of the fluid stirring parts 20 and 20 by releasing the front-end | tip part of the mounting bolt 12 screwed to the female threaded part 14 of the mounting body 10. FIG. Can be. And the fluid stirring part 20 and the pump chamber part 60 which are connected so that the drive shaft 4 interlocks in the shape intertwined are slid down along the drive shaft 4, and these are separated from the drive shaft 4 You can. In addition, by following the reverse procedure, the fluid agitator 20, 20 can be configured in a state that is interposed between the electric motor unit 1 and the pump chamber 60 and coupled. Therefore, since the fluid stirring part 20 superimposed in the superimposed box shape is comprised to be detachably attached to the drive shaft 4, the number increase / decrease adjustment work can also be simplified.

In FIG. 25 and FIG. 27, 90 is a pipe-shaped fluid supply part, It mounts in the shape which the front end side supply body 91 protrudes inward to the casing body 61, and the base end part of the front end side supply body 91 is shown. The proximal end supply body 92 is connected to each other so that the proximal end supply body 92 is piped along the circumferential wall forming piece 25. In addition, in this embodiment, only the required amount of the gas E, such as nitrogen, oxygen, and air, is supplied from the fluid supply part 90 to the casing body 21 inside.

In this way, the liquid Li and the gas E are sucked in from the inlet 35 by the discharge pressure from the pump chamber part 60 and the suction pressure by the rotation of the movable side stirring body 23. Then, the mixture flows into the stirring passage 36 and flows in the radiation direction and the rotational direction X. The mixture is stirred and stirred to form a mixture from the outlet 38 which is the end of the stirring passage 36 as a mixture. Spills inside. The mixture which flowed out inside the stirring chamber 22 is carried out to a required place via the carrying out hose 17. FIG. At this time, since the gas E is supplied from the downstream side of the pump chamber part 60, it can avoid that the gas E adversely affects the impeller 63 etc. of the pump chamber part 60. FIG.

In the fluid stirring part S comprised as mentioned above, it can also apply combining the following structures optimally.

The movable side stirring body 23 and the fixed side stirring body 24 which are arrange | positioned and installed in the facing state can adjust advancing position freely in the facing direction at least one, and can adjust the fixed clearance gap t facing each other. do. And according to the kind of gas (E) and solid which are object to mix and stir with liquid (Li), it is possible to implement | achieve a suitable ultrafineness and uniformity by adapting a constant clearance t. For example, the movable side stirring body 23 is fixed by adjusting the mounting position of the cylindrical connecting piece 45 shown in FIG. 32 to the drive shaft 4 via the fixing bolt 47. The retreat position can be adjusted with respect to the stirring body 24.

In addition, the fixed side stirring body 24 is connected to the movable side stirring body 23 with the connection screw etc. in the above-mentioned basic form, without connecting to the support main body 31, and rotates the stirring bodies of both sides integrally. It may be possible. In this case, the liquid Li and the gas E flow in the radiation direction while meandering in the vertical direction along the stirring passage 36 by centrifugal force. At this time, the liquid (Li) and the gas (E) are flowed under a shearing action. In addition, the both-side stirring bodies 23 and 24 which rotate integrally are applicable also when the many stirring chambers 22 are formed continuously in the axial direction of the said drive part 4, and is applicable. Therefore, for example, inside the stirring chamber 22 of the upper end (downstream side), the movable side stirring body 23 and the fixed side stirring body 24 are provided, and only the movable side stirring body 23 is rotated, In the stirring chamber 22 of the lower end (upstream), the both-side stirring bodies 23 and 24 which rotate integrally can also be provided. At this time, the gas E is refined by both side stirring bodies 23 and 24 which are integrally rotated in the stirring chamber 22 at the lower end, and the movable side stirring body 23 is inside the stirring chamber 22 at the upper end. ) Can be further agitated by the both-side stirring bodies 23 and 24 which rotate only), and it can refine | miniaturize. In addition, both side stirring bodies 23 and 24 which rotate integrally in the upper and lower stirring chambers 22 can also be provided.

In addition, in the stirring chamber 22, a baffle plate (not shown) extending in the vertical direction is provided, and the baffle plate flows out of the outlet port 38 and acts on the mixture which becomes the swirl flow. It can also be a turbulent flow flowing in the vertical direction. In this case, the uniform ring (homogenization) of the mixture is improved.

[Fluid Stirring Unit S According to Second Embodiment]

33 to 39 are fluid stirring portions S according to the second embodiment, and have the same basic structure as the first embodiment described above, but the upper and lower casing bodies 21 and 21 are connected to each other. The structure and the fixed structure of the fixed side stirring body 24 are greatly different.

That is, the casing body 21, as shown in Fig. 34, the upper connecting piece 100 and the upper peripheral edge portion and the lower peripheral edge portion of the cylindrical circumferential wall forming piece 25 along the vertical axis, respectively, The lower connection piece 110 is formed to protrude in a blade shape. The upper connection piece 100 forms the upper surface 101 into a flat surface, and the upper surface 101 is located somewhat below the upper surface 102 of the circumferential wall formation piece 25. And the fitting recessed part 27 is formed in the upper surface 101 and the outer peripheral surface (outer peripheral surface) of the upper end part of the circumferential wall formation piece 25. As shown in FIG. An O-ring fitting groove 103 is formed in the inner circumferential edge portion of the upper surface 101 to insert the O-ring 104 into the O-ring fitting groove 103. The lower connecting piece 110 forms a fitting recess 111 into which the upper circumferential edge portion 105 of the circumferential wall forming piece 25 is inserted in the inner circumferential edge portion, and inserts it into the outer circumferential edge portion. The fitting convex part 112 inserted in the fitting concave part 27 is formed. The casing body 21 at the uppermost end is provided with a connection hole 188 for connecting the carrying hose 17.

In this way, when connecting the upper and lower casing bodies 21 and 21, the lower casing body (with the fitting recessed part 111 of the lower connection piece 110 formed in the upper casing body 21) Convex part 112 for fitting the lower connecting piece 110 formed in the upper casing body 21 at the same time as fitting the upper peripheral edge portion 105 of the circumferential wall forming piece 25 formed in 21. The fitting recessed portion 27 of the upper connecting piece 100 formed in the lower casing body 21 is fitted from below. In this state, the upper and lower connecting pieces 100 and 110 are tightened (fastened) with a fastening connector (so-called clamp band 200) to connect the upper and lower casing bodies 21 and 21 integrally. . In addition, since the fastening connector 200 releases the fastening of the upper and lower connecting pieces 100 and 110, the upper and lower casing bodies 21 and 21 can be disconnected from each other.

34 and 35, the fixed side stirring body 24 connects the ring plate-shaped support body 120 to the lower surface of the fixed side main body 50 in a polymerized state, thereby forming an outer circumference of the support body 120. The edge part 121 is made into the shape (blade shape) which protruded outward. And the outer peripheral edge part 121 of the support body 120 is provided in the fitting recessed part 111 of the lower connection piece 110 formed in the upper casing body 21, and the fitting recessed part ( The upper circumferential edge portion 105 of the circumferential wall forming piece 25 formed on the lower casing body 21 inserted into the 111 is brought into contact with the lower surface of the outer circumferential edge portion 121 of the support body 120, The upper and lower connecting pieces 100 and 110 are integrally fastened by the fastening coupler 200 so that the outer circumferential edge portion 121 of the support 120 is sandwiched between the upper and lower connecting pieces 100 and 110. It is fixed.

In this way, the support body 120 is sandwiched between the upper and lower casing bodies 21 and 21 and fastened integrally. In addition, by releasing the fastening of the casing bodies 21 and 21, the support body 120 can also be disengaged simultaneously. Therefore, the disassembly and assembly operations at the time of cleaning work and maintenance work can be performed simply and quickly.

The drive shaft 4 of 2nd Embodiment is interlocked with the output shaft 6 of the electric motor part 1, as shown in FIG. That is, the drive shaft 4 formed by protruding the output shaft 6 downward from the lower end surface portion 3 of the motor case 2 and extending in the vertical direction via the interlocking body 130 at the lower end portion of the output shaft 6. Putting on and taking off is attached to the upper end of the freely. 131 is a drive shaft support, and the drive shaft support 131 is provided so as to be interposed between the lower end surface portion 3 of the electric motor case 2 and the mounting body 10, and the upper portion of the drive shaft 4 is circumferentially arranged in the vertical direction. The rotation is supported freely. In the center portion of the mounting body 10, an insertion hole 132 through which the drive shaft 4 is inserted is formed. 140 is an upper midway bearing part provided perpendicular to the mounting body 10. As for the intermediate bearing part 140, as shown in FIG. 34, the cylindrical circumferential wall formation piece 141 vertically extends downward from the mounting body 10 at the lower end of the inner peripheral surface of the circumferential wall formation piece 141, as shown in FIG. The bush 143 is provided via the support piece 142, and the bush 143 rotates freely the intermediate part of the drive shaft 4. The lower connecting piece 144 is formed at the lower end of the outer circumferential surface of the circumferential wall forming piece 141 by protruding in a blade shape. The lower connecting piece 144 forms a fitting recess 145 into which the upper circumferential edge portion 105 of the circumferential wall forming piece 25 formed in the casing body 21 is inserted in the inner circumferential edge portion. At the same time, the fitting convex part 146 inserted in the fitting recess 27 of the casing body 21 is formed in the outer peripheral edge part.

In this way, when connecting the casing body 21 to the intermediate bearing part 140, the casing body 21 to the fitting recessed part 145 of the lower connection piece 144 formed in the circumferential wall formation piece 141. At the same time as inserting the upper peripheral edge portion 105 of the peripheral wall forming piece 25 formed therein, the fitting convex portion 146 of the lower connecting piece 144 formed on the peripheral wall forming piece 141, The fitting recessed part 27 of the upper connection piece 100 formed in the casing body 21 is fitted in the lower part and comprised. In this fitting state, the upper and lower connecting pieces 100 and 144 are squeezed by the fastening connecting portion 200, and the upper and lower casings 21 are integrally connected to each other.

Small-diameter portions 149 to 153 having stages are formed at positions where the movable side stirring body 23 that is the intermediate portion of the drive shaft 4 is mounted. Small-diameter portions 149 to 153 having five stages formed therein are formed to be small diameter stages (stages formed because the diameter becomes smaller) in order to be downward, so that each movable-side stirring body 23 and the impeller 154 are formed. I'm trying to determine the location. That is, as shown in FIG. 34 and FIG. 35, the inner diameter of the drive shaft insertion hole 44 of the cylindrical connection piece 45 of each movable side stirring body 23 is the diameter of the small diameter part 149-153 in which each end was formed. It is formed to match (match) the outer diameter, and is set to restrict sliding upward. The drive shaft 4 is fixed by the fixing bolt 47 through the bolt hole 46 formed in the cylindrical connecting piece 45 at the positions of the small diameter portions 149 to 152 in which upward sliding is restricted. To the movable side stirring body (23). Moreover, the cylindrical connection piece 155 formed in the center part of the impeller 154 is positioned in the small diameter part 153 in which the end was formed, and the fixed bolt was provided through the bolt hole 156 formed in the cylindrical connection piece 155. By fixing to 157, the impeller 154 to the drive shaft 4 is interlocked.

The pump chamber part 60 forms the pump chamber 62 in the casing body 61, as shown to FIG. 35 and FIG. The impeller 154 is provided in the pump chamber 62, and the center of the impeller 154 is attached to the lower end of the drive shaft 4.

The casing body 61 is formed by projecting the upper connecting piece 170 in the shape of a blade on the outer circumferential surface of the upper portion of the cylindrical circumferential wall forming piece 160 along the axis in the vertical direction as shown in FIG. have. The upper connection piece 170 forms the upper surface 171 as a flat surface, and positions the upper surface 171 slightly below the upper end surface of the circumferential wall forming piece 160. And the fitting recessed part 172 is formed in the upper surface 171 and the outer peripheral surface of the upper end of the circumferential wall formation piece 160. As shown in FIG. An O-ring fitting groove 174 is formed in the inner peripheral edge portion of the upper surface 171 to insert the O-ring 173 into the O-ring fitting groove 174.

In this way, when connecting the lowermost casing body 21 and the casing body 61, the lower casing body 61 to the fitting recessed part 111 of the lower connection piece 110 formed in the casing body 21. The lower peripheral edge portion 161 of the circumferential wall forming member 160 formed in the casing is inserted, and the casing body is fitted into the convex portion 112 for fitting the lower connecting piece 110 formed in the casing body 21. The fitting recess 172 of the upper connecting piece 170 formed in 61 is fitted from below. In this state, the upper and lower connecting pieces 170 and 110 are fastened by the fastening coupler 200, and the upper and lower casing bodies 21 and 61 are integrally connected to each other.

As shown in FIG. 35 and FIG. 39, the lower bearing part 180 is attached to the lower part of the inner peripheral surface of the casing body 61. As shown in FIG. The lower bearing portion 180 includes a cylindrical mounting piece 181 mounted on the inner circumferential surface of the circumferential wall forming piece 160 in a polymerized state, and a ring plate-shaped bearing circumference connected to the upper surface of the mounting piece 181. It forms in the center part of the edge part 182 and the bearing peripheral part 182 via the support piece 183 via the bearing center part 184. As shown in FIG. The lower end of the drive shaft 4 is supported by the bearing central portion 184. 185 is a suction port formed between the bearing circumferential edge portion 182 and the bearing central portion 184 via a support piece 183. 186 is a screw which detachably connects the circumferential wall forming piece 160 and the mounting piece 181 freely. 187 is a mounting hole portion for mounting the fluid supply portion 90.

In addition, in this embodiment, although the fluid stirring part S as a mixing stirring apparatus was demonstrated, the solid supply, such as a liquid, a granular body, or powder, is optimally supplied instead of the gas used as the mixing stirring object in the fluid supply part 90. FIG. It can apply as a required mixing and stirring apparatus.

A: nitrogen treatment water generator
A1: oxygen dissipation and release promoting means
A2: nitrogen nanobubble mixing promoting means
J: circulating pipe
K: treatment water supply
M: Fluid Mixing Process
N: nitrogen gas supply
P: pressure pump
R: circulation flow path
S: fluid agitator
T: tank
V: pressure regulating valve
W: Processed

Claims (8)

A circulation passage for circulating fluid,
A tank installed in the middle portion of the circulation passage to accommodate the treated water;
A nitrogen gas supply unit connected to a middle portion of the circulation passage so as to supply nitrogen gas to the treated water flowing out of the tank;
Since the shear force is applied to the gas-liquid mixture of the nitrogen gas and the treated water supplied from the nitrogen gas supply part, the nitrogen gas is formed into a bubble group having ultra fine bubbles, and the fluid mixture installed in the middle part of the circulation flow path to mix with the treated water. Including a processing unit,
The treated water in which the bubble group flowed out from the fluid mixing processing unit is mixed is refluxed into the tank to dissipate oxygen dissolved in the treated water in the tank to nitrogen gas formed into fine bubbles, thereby dissipating oxygen. Nitrogen treatment water generating apparatus characterized in that it is configured to float the extracted nitrogen gas in the treated water and to escape from the treated water. The method of claim 1,
The fluid mixing processing unit faces a pair of plate-shaped mixing elements extending along the circulation passage in a polymerization state to form a mixing passage extending in the extending direction between the both mixing elements, and at the same time, the mixing passage The inlet hole formed in one side of the mixing element is connected to the start end of the mixing element (described later), and the outlet hole formed in the opposite side of the mixing element is connected to the end of the mixing passage. ,
The mixing flow passage may include a plurality of flow dividing portions that flow the fluid introduced from the inflow hole in an extension direction of the mixing flow passage, and a plurality of confluences of the fluids flowed from the flow dividing portion in the extension direction of the mixing flow passage and joining them. Nitrogen treatment water generating apparatus comprising a portion. 3. The method of claim 2,
Between the start end of the mixing flow path and the inlet hole formed at one side of the mixing element, a start end side temporary retention space is formed, and the start end side temporary retention space is formed to have substantially the same width as the start end of the mixing channel. While communicating with the beginning of the mixing channel over approximately the entire width,
An end-side temporary retention space is formed between the start end of the mixing channel and the outflow hole formed at the opposite side of the mixing element, and the end-side temporary retention space is formed to be substantially the same width as the end of the mixing channel. Nitrogen treatment water generating apparatus characterized in that the communication with the end of the mixed flow passage over the entire width. A process of mixing nitrogen gas and treated water by forming a group of bubbles having ultrafine bubbles by applying shear force to the gas-liquid mixture of treated water and nitrogen gas, and mixing the treated water with the treated water;
An accommodation step of accommodating the treated water in which the bubble group obtained in the nitrogen gas / treated water mixing step is mixed into the tank;
By dissipating the dissolved oxygen in the treated water accommodated in the tank in the nitrogen gas formed by the ultra-small bubbles, the nitrogen gas is floated in the treated water, and the treatment is carried out. A nitrogen-treated water generation method comprising an oxygen escape process to escape from the water. Nitrogen gas formed by the group of bubbles having fine bubbles is mixed with the treated water and accommodated in the tank, and oxygen is dissipated by dissipating oxygen dissolved in the treated water into the nitrogen gas formed by the fine bubbles. Nitrogen treated water, characterized in that the fine nitrogen gas is floated in the treated water and generated by escaping from the treated water. Nitrogen gas formed into a bubble group having ultra-fine bubbles is mixed with the treated water and accommodated in the tank, and oxygen dissolved in the treated water in the tank is dissipated in the nitrogen gas formed by the fine bubbles. While floating the fine nitrogen gas dissipated in the treated water, and escaped from the treated water to produce nitrogen treated water,
Freshness maintenance method of the fish fish foods, characterized in that the treatment by immersing the fish fish foods in the nitrogen treatment water for a certain time. The method according to claim 6,
The fresh fish fish food which is treated by immersing in the nitrogen treated water for a certain period of time is accommodated in an accommodating bag, degassed and sealed inside the accommodating bag, and refrigerated in the degassing / sealing state. Maintenance treatment. The method according to claim 6,
A fresh fish holding method of fish fish foods, characterized in that the frozen fish treated by immersing in the nitrogen treated water for a certain period of time, frozen treatment in a state of being immersed in nitrogen treated water.

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