CN213738691U - Preparation system of oxygen-free controlled atmosphere water - Google Patents
Preparation system of oxygen-free controlled atmosphere water Download PDFInfo
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- CN213738691U CN213738691U CN202022457808.6U CN202022457808U CN213738691U CN 213738691 U CN213738691 U CN 213738691U CN 202022457808 U CN202022457808 U CN 202022457808U CN 213738691 U CN213738691 U CN 213738691U
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Abstract
The utility model discloses a preparation system of oxygen-free air conditioned water, it includes the storage water tank, produces micro-nano bubble and lets in bubble generating device in the storage water tank, general water in the storage water tank is in the storage water tank with carry out circulating pump, past between the bubble generating device circulating pump, past let in the nitrogen gas generating device of pure nitrogen gas among the bubble generating device, be provided with the exhaust gas vent of oxygen supply on the storage water tank. The utility model discloses thereby utilize the micro-nano bubble of nitrogen gas to replace aquatic oxygen fast and realize the purpose of oxygen in the water under the normal atmospheric temperature, the anaerobic gas of its preparation of preparation is transferred hydroenergy and is kept antibacterial, fresh-keeping effect enough for a long time.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of the preparation of anaerobic gas water of adjusting, especially, relate to a preparation system of anaerobic gas water of adjusting.
[ background of the invention ]
The 'oxygen-free modified atmosphere ice' is a water mixture with extremely low oxygen content (nearly 0), and the 'oxygen-free modified atmosphere ice' formed after melting can effectively cover marine products to form a vacuum packaging structure similar to an oxygen-isolated vacuum packaging structure, so that the oxygen-free modified atmosphere ice can effectively inhibit bacterial propagation and reduce the activity of biological enzymes, and the purpose of delaying the putrefactive activity is achieved.
The key basic technology for making the oxygen-free air-conditioned ice is oxygen-free air-conditioned water, and then the oxygen-free air-conditioned water is quickly frozen to be made into ice blocks, crushed ice or ice slush according to the requirement. The oxygen removing method in water which is commonly used at present can be divided into two main categories of physics and chemistry. The chemical method is to add some deoxidant into the boiler to react with the dissolved oxygen in water, so as to remove oxygen. In real life, chemical methods are often applied to oil field development and boiler hot water industries and are relatively mature, but because new foreign substances are added into water, the obtained oxygen-free water cannot be directly applied to the food industry and can be utilized through a series of complex treatments, but the cost is invisibly increased.
In contrast to chemical methods, the physical principle is to use the physical properties of oxygen to separate it from water. The rate of dissolution of the gas is proportional to the partial pressure of the gas mixture above its liquid surface. When the total pressure is constant, the water temperature is raised, the water vapor pressure is increased, and the partial pressure of oxygen is reduced. When the boiling point of water is reached at 100 ℃, the oxygen partial pressure on the liquid surface is basically zero, and the content of dissolved oxygen in the water is basically close to zero. In conclusion, most of the conventional physical oxygen removal equipment needs a vacuum high-temperature environment, so that the corresponding equipment has the defects of large volume, high investment amount/operation cost and large maintenance risk.
Therefore, there is a need to provide a new oxygen-free water-conditioning preparation system to solve the above problems.
[ Utility model ] content
The utility model aims at providing a preparation system of anaerobic air-conditioned water utilizes the micro-nano bubble of nitrogen gas to replace the purpose of oxygen in the aquatic oxygen under realizing the normal atmospheric temperature and pressure fast, and the anaerobic air-conditioned water energy of its preparation of preparation keeps antibacterial, fresh-keeping effect enough for a long time.
The utility model discloses a following technical scheme realizes above-mentioned purpose: the preparation system of the oxygen-free controlled atmosphere water comprises a water storage tank, a bubble generating device, a circulating pump and a nitrogen generating device, wherein the bubble generating device generates micro-nano bubbles and leads the micro-nano bubbles into the water storage tank, the circulating pump circulates water in the water storage tank between the water storage tank and the bubble generating device, the nitrogen generating device leads pure nitrogen into the bubble generating device, and an exhaust port for discharging oxygen is arranged on the water storage tank.
Furthermore, the water storage tank is provided with an oxygen-free controlled atmosphere water discharge pipe, the interior of the water storage tank is provided with an oxygen content detection device, and the preparation system also comprises a control module for controlling the oxygen-free controlled atmosphere water discharge pipe to be switched on or switched off; the oxygen content detection device is in circuit communication with the control module.
Furthermore, one end of the oxygen-free air-conditioned water discharge pipe is communicated with a freezing module, and oxygen-free air-conditioned ice can be produced by the freezing module.
Furthermore, a water replenishing pipe is arranged on the water storage tank, an electromagnetic valve is arranged on the water replenishing pipe, and the electromagnetic valve is communicated with the control module circuit to realize automatic control of pipeline conduction.
Furthermore, a liquid level sensor is arranged in the water storage tank and is communicated with the control module through a circuit.
Further, the nitrogen generating device comprises a nitrogen-oxygen separator and an air compressor for introducing compressed air into the nitrogen-oxygen separator.
Compared with the prior art, the utility model relates to a preparation system of anaerobic gas water of transferring beneficial effect lies in: the nitrogen micro-nano bubbles are used for quickly replacing oxygen in water, so that the purpose of removing oxygen in water at normal temperature and normal pressure is achieved, and the prepared oxygen-free modified atmosphere water can keep bacteriostatic and fresh-keeping effects for a long time.
[ description of the drawings ]
FIG. 1 is a classification diagram for classifying bubbles according to their diameter size;
FIG. 2 is a schematic diagram of the principle of long-term retention of micro-nano bubbles in water;
FIG. 3 is a schematic view of a gas-liquid interface of the micro-nano bubbles;
fig. 4 is a schematic diagram of the principle of reducing the dissolved oxygen concentration by using pure nitrogen micro-nano bubbles according to the embodiment of the present invention;
FIG. 5 is a graph showing the variation of oxygen content in water during oxygen-free water diversion process using the technique of the embodiment of the present invention;
FIG. 6 is a comparison graph of the bacteriostatic effect of oxygen-free water and distilled water prepared by the embodiment of the present invention;
fig. 7 is a schematic view of the oxygen-free controlled atmosphere water preparation system according to the embodiment of the present invention.
The figures in the drawings represent:
100 oxygen-free controlled atmosphere water preparation system;
1, a water storage tank; 2 a bubble generating device; 3, a circulating pump; 4, a nitrogen generating device, a 41 nitrogen-oxygen separator and a 42 air compressor; 5 an exhaust port; 6 oxygen-free air-conditioned water discharge pipe; 7, a water replenishing pipe; 8, a control module; 9 freezing module.
[ detailed description ] embodiments
Example (b):
referring to fig. 4, the present embodiment is a method for preparing oxygen-free water, including: introducing micro-nano bubbles of pure nitrogen into water, enabling the micro-nano bubbles to collide with oxygen molecules in the water, absorbing and melting the oxygen molecules into the interior, and enabling the micro-nano bubbles to expand and float out of the water surface along with the increase of the absorption quantity of the oxygen molecules to separate from the water body, thereby achieving the purpose of reducing the concentration of dissolved oxygen in the water; meanwhile, the nano-scale bubbles are uniformly dispersed in the water body and collide, absorb, expand, float upwards and burst with oxygen molecules dissolved into water in the air, so that the oxygen molecules are taken out of the water body; the water after the oxygen molecules are taken out of the water body is the oxygen-free water adjusting water.
Micro-nano bubbles are one of the leading international physical technologies. The micro-nano bubbles are bubbles with diameters ranging from tens of micrometers to hundreds of nanometers when the bubbles occur, are between micro bubbles and nano bubbles, and have physical and chemical characteristics which are not possessed by conventional bubbles. The classification of bubbles by diameter size is shown in figure 1.
The normal bubbles (millimeter level and submillimeter level) have large buoyancy and can quickly rise vertically to the water surface to be separated from the water surface and burst. The micro-nano bubbles have small size, so the micro-nano bubbles have small buoyancy and slow rising speed (3 mm/min), can stay in water for a long time and do Brownian motion without escaping, and thus, the probability and the chance of collision between the micro-nano bubbles and various components (including gas molecules) in liquid can be effectively increased. Typically, the micro-scale bubbles stay in water for 5-500 hours, while the nano-scale bubbles stay for years to decades. The schematic diagram of the principle of long-term retention of micro-nano bubbles in water is shown in fig. 2.
Meanwhile, the surface charges of the micro-nano bubbles can form an electric double layer, and the potential difference is represented by zeta potential. The smaller the volume of the bubbles, the higher the zeta potential generated at the interface. The surfaces of the micro-nano bubbles are negatively charged, and the interiors of the micro-nano bubbles are positively charged, so that the micro-nano bubbles with the same polarity are mutually repelled, and the phenomenon of mutual adhesion and combination is avoided. Through the gas-liquid interface, gas molecules in the micro-nano bubbles can exchange with external gas molecules. The schematic diagram of the gas-liquid interface of the micro-nano bubbles is shown in fig. 3.
In the embodiment, the two characteristics of the micro-nano bubbles are utilized to generate micro-scale bubbles and nano-scale bubbles of pure nitrogen (99.99%) in water, wherein the micro-scale bubbles are absorbed and fused into the interior after colliding with oxygen molecules due to large surface area. With the increase of the absorbed oxygen molecules, the micron-sized bubbles expand and float out of the water surface to be separated from the water body, thereby achieving the purpose of reducing the concentration of dissolved oxygen in the water. Meanwhile, the nano-scale bubbles with smaller volume are uniformly dispersed in the water body, collide with oxygen molecules dissolved into the water from the air, absorb, expand, float upwards and burst, and carry the oxygen molecules out of the water body. In other words, the micron-sized bubbles containing nitrogen can absorb oxygen in water in a short time, and then float upwards and burst to be taken out of the water body; the nano-scale bubbles play a role in preventing oxygen in the air from being re-merged into the water body. A schematic diagram of the principle of reducing the dissolved oxygen concentration by using pure nitrogen micro-nano bubbles is shown in fig. 4.
In this embodiment, the oxygen content in water can be reduced from 8.25mg/L to 0.00mg/L and the nitrogen content in water can be increased from 15.61mg/L to 20.01mg/L within 35 minutes by using the pure nitrogen micro-nano bubble technology, and the test result is shown in FIG. 5, and the oxygen-free modified atmosphere ice required by fishery preservation can be prepared under the freezing condition by using the oxygen-free modified atmosphere water.
The embodiment also provides a preparation method of the oxygen-free modified atmosphere ice, which comprises the following steps: micron-sized bubbles and nanometer-sized bubbles of pure nitrogen are introduced into water, the micron-sized bubbles collide with oxygen molecules in the water, the oxygen molecules are absorbed and fused into the interior, and the micron-sized bubbles expand and float out of the water surface along with the increase of the absorption quantity of the oxygen molecules to separate from the water body, so that the aim of reducing the concentration of dissolved oxygen in the water is fulfilled; meanwhile, the nano-scale bubbles are uniformly dispersed in the water body and collide, absorb, expand, float upwards and burst with oxygen molecules dissolved into water in the air, so that the oxygen molecules are taken out of the water body; the water with the oxygen molecules brought out of the water body is the oxygen-free air-conditioned water, and the oxygen-free air-conditioned water is frozen and cooled to form ice blocks, crushed ice or ice sand, namely the oxygen-free air-conditioned ice.
As mentioned above, "oxygen-free water regulation" is not a common water, and it can artificially form a local oxygen-free space. In such an environment, bacteria cannot acquire oxygen to sustain life activities, and thus death occurs. In order to verify the bacteriostasis effect of the oxygen-free modified atmosphere water prepared in the embodiment, the bacteriostasis effect of the oxygen-free modified atmosphere water prepared in the embodiment is detected by a bacteriostasis zone method, the result is shown in fig. 6, the appearance of the bacteriostasis zone near the oxygen-free modified atmosphere water in the experimental group can be clearly observed from fig. 6, and the phenomenon does not occur in the distilled water of the control group.
Meanwhile, in order to quantitatively grasp the antibacterial ability of the oxygen-free water regulation, the embodiment compares the antibacterial ability with ozone water and physiological saline, the comparison result is shown in table 1, and the oxygen-free water regulation is shown in table 1 to have the antibacterial ability superior to that of ozone water; the ozone can oxidize organic components such as fat, protein and the like in the marine products, and the oxygen-free water regulation can effectively prevent oxidation, so that a better fresh-keeping effect can be achieved.
TABLE 1 comparison table of "oxygen-free water adjustment" antibacterial ability
| Initial colony count | After 24 hours | Results | |
| Air-conditioning oxygen-free water | 5.2×106 | 4.0×103 | Antibacterial |
| Ozone micro-nano bubble water | 5.2×106 | 9.0×103 | Antibacterial |
| Normal physiological saline | 5.2×106 | 4.0×106 | Is not antibacterial |
After the oxygen-free air-conditioned ice is prepared by the oxygen-free air-conditioned water, the marine products are directly covered, and the temperature of the surface and the interior of the marine products can be quickly reduced to-5 to 0 ℃; then the oxygen-free air-conditioned ice is melted into liquid and quickly coated on the surface of the marine product so as to achieve the purpose of isolating the air. Meanwhile, nitrogen nano-scale bubbles with extremely small volume can gradually permeate into the marine products, so that the oxygen content is reduced by absorbing internal oxygen molecules, and then the purposes of rapidly cooling and removing the oxygen molecules inside and outside the marine products can be achieved through 'oxygen-free air-conditioned ice' in an one-by-two carving manner, thereby generating the fresh-keeping effect.
The prepared oxygen-free modified atmosphere ice is applied to seafood product preservation, a good experimental effect is achieved, and marine products preserved by the oxygen-free modified atmosphere ice prepared by the embodiment can still keep the state of fresh fish with the K value of below 10% even after 5 days, and meet the fresh fish standard. The results of the specific experiments are shown in table 2.
TABLE 2K-value variation for oxygen-free modified atmosphere ice preservation of fish
| Initial K value | K value after 5 days | |
| Scomber scombrus | 4.3％ | 6.9％ |
| Red fish | 5.3％ | 7.1％ |
| Mandarin fish | 3.2％ | 4.6％ |
Referring to fig. 7, the embodiment further provides a preparation system 100 for preparing oxygen-free water, which includes a water storage tank 1, bubble generating devices 2 for generating micro-nano bubbles and introducing the micro-nano bubbles into the water storage tank 1, a circulating pump 3 for circulating water in the water storage tank 1 between the bubble generating devices 2, and a nitrogen generating device 4 for introducing pure nitrogen into the bubble generating devices 2, wherein an exhaust port 5 for discharging oxygen is disposed on the water storage tank 1.
The water storage tank 1 is further provided with an oxygen-free water-adjusting discharge pipe 6 and a water replenishing pipe 7, and the preparation system 100 for preparing oxygen-free water adjustment of the embodiment further comprises a control module 8 for controlling the oxygen-free water-adjusting discharge pipe 6 and the water replenishing pipe 7 to be switched on or off.
Specifically, electromagnetic valves can be arranged on the oxygen-free air-conditioned water discharge pipe 6 and the water replenishing pipe 7, and the control module 8 controls the opening or closing of the electromagnetic valves so as to realize the conduction control of the oxygen-free air-conditioned water discharge pipe 6 and the water replenishing pipe 7. An oxygen content detection device (not marked in the figure) is arranged in the water storage tank 1 and is in circuit communication with the control module 8. When the oxygen content in the water storage tank 1 is zero, the control module 8 controls the conduction of the oxygen-free controlled atmosphere water discharge pipe 6, so that the oxygen-free controlled atmosphere water output is realized.
Still be provided with level sensor (not marking in the picture) in the storage water tank 1, level sensor and 8 circuit intercommunications of control module, work as level sensor detects when the liquid level in the storage water tank 1 is less than and sets for the liquid level value, and control module 8 control moisturizing pipe 7 is opened, carries out automatic water supply.
One end of the oxygen-free air-conditioned water discharge pipe 6 is communicated with a freezing module 9, and oxygen-free air-conditioned ice can be produced by the freezing module 9.
The nitrogen generator 4 includes a nitrogen-oxygen separator 41, and an air compressor 42 for introducing compressed air into the nitrogen-oxygen separator 41.
The working principle of the preparation system 100 for preparing oxygen-free water adjustment of the embodiment is as follows: compressed air is generated by an air compressor 42 and then is introduced into a nitrogen-oxygen separator 41, redundant oxygen is discharged, separated high-purity nitrogen is introduced into a bubble generator 2, and then, for example, in a water storage tank 1, numerous high-purity nitrogen micro-nano bubbles are newly added in water in the water storage tank 1, micron-sized nitrogen bubbles collide with oxygen molecules in a water body, absorb, expand and float upwards in the water storage tank 1, then the oxygen is taken away from the water surface, the concentration of dissolved oxygen in the water body is effectively reduced, and the oxygen is discharged through an exhaust port 5; meanwhile, the nano-scale nitrogen bubbles collide with oxygen molecules in the water body melted in the air, absorb, expand, float and burst to bring the oxygen out of the water surface, so that the oxygen molecules in the air are effectively inhibited from entering the water body, and the content of the oxygen molecules in the air entering the water body is reduced; the water in the water storage tank 1 is continuously circulated between the water storage tank 1 and the bubble generator 2 through the circulating pump 3, so that the concentration of dissolved oxygen in the water body is gradually reduced, and finally oxygen-free water regulation is obtained; then enters the freezing module 9 through the oxygen-free air-conditioned water discharge pipe 6 to form oxygen-free air-conditioned ice.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (6)
1. A preparation system of oxygen-free controlled atmosphere water is characterized in that: the device comprises a water storage tank, a bubble generating device which generates micro-nano bubbles and is communicated into the water storage tank, a circulating pump which circulates water in the water storage tank between the water storage tank and the bubble generating device, and a nitrogen generating device which is communicated with pure nitrogen into the bubble generating device, wherein an exhaust port for discharging oxygen is arranged on the water storage tank.
2. The system for producing oxygen-free modified atmosphere water of claim 1, wherein: the preparation system also comprises a control module for controlling the conduction or the closing of the oxygen-free controlled atmosphere water discharge pipe; the oxygen content detection device is in circuit communication with the control module.
3. The system for producing oxygen-free modified atmosphere water of claim 2, wherein: one end of the oxygen-free air-conditioned water discharge pipe is communicated with a freezing module, and oxygen-free air-conditioned ice can be produced by the freezing module.
4. The system for producing oxygen-free modified atmosphere water of claim 2, wherein: the water storage tank is provided with a water replenishing pipe, the water replenishing pipe is provided with an electromagnetic valve, and the electromagnetic valve is communicated with the control module circuit to realize automatic control of pipeline conduction.
5. The system for producing oxygen-free modified atmosphere water of claim 4, wherein: a liquid level sensor is arranged in the water storage tank and is communicated with the control module through a circuit.
6. The system for producing oxygen-free modified atmosphere water of claim 1, wherein: the nitrogen generating device comprises a nitrogen-oxygen separator and an air compressor for introducing compressed air into the nitrogen-oxygen separator.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194220A (en) * | 2020-10-29 | 2021-01-08 | 晶彩无限环境科技(苏州)有限公司 | Preparation method and preparation system of oxygen-free water-regulating and oxygen-free air-regulating ice |
| WO2023023874A1 (en) * | 2021-08-26 | 2023-03-02 | Kran Spa | Nanobubble generating system |
| WO2023214574A1 (en) * | 2022-05-06 | 2023-11-09 | 福本明 | Method, system and apparatus for producing oxygen-free seawater sherbet ice |
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2020
- 2020-10-29 CN CN202022457808.6U patent/CN213738691U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194220A (en) * | 2020-10-29 | 2021-01-08 | 晶彩无限环境科技(苏州)有限公司 | Preparation method and preparation system of oxygen-free water-regulating and oxygen-free air-regulating ice |
| WO2023023874A1 (en) * | 2021-08-26 | 2023-03-02 | Kran Spa | Nanobubble generating system |
| WO2023214574A1 (en) * | 2022-05-06 | 2023-11-09 | 福本明 | Method, system and apparatus for producing oxygen-free seawater sherbet ice |
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