Protein separation device

Abstract

The utility model relates to a protein separation device, include: reaction chamber for accommodating the protein -rich dirty seawater, its right side upper portion is provided with water inlet joint, right side lower portion is provided with bubble jet joint, left side lower portion is provided with water outlet joint, water inlet joint is curved to side and is inclined downward, bubble generating mechanism, including high -pressure water pump and jet device, jet device includes neck -in tube and flared tube, neck -in tube and flared tube are opposite and connect, throat also is equipped with air inlet, neck -in tube end is connected with high -pressure water pump through a high -pressure nozzle, flared tube end is connected with bubble jet joint through another high -pressure nozzle, the utility model discloses through the venturi jet device to air bubble carries out acceleration supply, reduces high -frequency equipment investment, reduces cost, through the oblique setting water inlet, makes the sewage in the reaction chamber form rotation, bubble is also carried along with the spiral ascending of water flow, stays in the sewage longer time, thereby can have more opportunity with bubble contact in the water protein.

Description

Technical Field

[0001] This utility model belongs to the field of seawater treatment technology, specifically relating to a protein separation device. Background Technology

[0002] In marine aquaculture, incomplete mechanical filtration leaves behind dissolved food, fish feces, and other pollutants in the seawater. These pollutants form protein, sugar, and lipid colloids, consuming dissolved oxygen and producing toxic compounds that endanger fish. Existing technologies use protein skimmers to separate these impurities from seawater. Protein skimmers utilize the principle that water bubbles can adsorb various particulate matter and soluble organic matter mixed in the water. The protein skimmer uses oxygenation equipment or a vortex pump to generate a large number of bubbles. The surface tension of these bubbles adsorbs residual food and fish feces, thus purifying the seawater. The bubbles, after adsorbing proteins, concentrate on the surface, forming foam. This foam, now containing pollutants, is collected in a container on the surface and then discharged as a turbid liquid.

[0003] The contact efficiency between air bubbles and proteins in water is key to improving the purification efficiency of a separation device. Existing protein separation devices employ two methods to improve this contact efficiency:

[0004] One approach is to rotate the wastewater and bubbles by stirring, which increases the time the bubbles remain in the water, allowing more proteins in the water to be adsorbed by the bubbles, as illustrated in Chinese patent 2017111389040. However, this solution requires adding more components to the reaction chamber of the equipment, significantly increasing the equipment cost.

[0005] Secondly, as in Chinese patent 201720978216.4, the bubble generating device is set at the bottom of the cylinder, and a baffle layer is set above the bubble generating device. The baffle layer has many through holes. The baffle plate slows down the rising speed of the bubbles, and the holes break large bubbles. This solution only slows down the bubbles when they pass through the baffle layer, but the rising speed is not affected after they leave the baffle layer. The through holes are set vertically upward, and the bubbles rise under the action of buoyancy. The rising path is straight. Therefore, considering the entire cross-section of the cylinder, the impurities are separated cleanly on the vertical line where the through holes are located, while the contact rate between water and bubbles is significantly low in other positions. Therefore, this solution does not achieve the purpose of making the bubbles fully contact the water. Utility Model Content

[0006] To solve the aforementioned technical problem, this invention provides a simple protein separation device with high separation efficiency.

[0007] The technical solution adopted by this utility model to solve the aforementioned problem is:

[0008] A protein separation device, comprising:

[0009] The reaction chamber is used to contain wastewater rich in protein. It has an inlet connector on the upper right side, a bubble jet connector on the lower right side, and an outlet connector on the lower left side. The inlet connector is horizontally tangentially inserted into the reaction chamber.

[0010] The bubble generating mechanism includes a high-pressure water pump and an ejector. The ejector includes a constricted tube and a flared tube, which are connected to each other. An air inlet is also provided at the throat. The end of the constricted tube is connected to the high-pressure water pump through a high-pressure nozzle. The end of the flared tube is connected to the bubble injection connector through another high-pressure nozzle.

[0011] Compared with the prior art, the advantages of this utility model with the above structure are:

[0012] 1) Accelerating the supply of air bubbles through a Venturi jet reduces investment in high-frequency equipment and lowers costs; 2) By setting the inlet at an angle, the wastewater in the reaction chamber rotates, and the bubbles are also spiraled upward by the water flow, staying in the wastewater for a longer time, thus giving the proteins in the water more opportunities to come into contact with the bubbles.

[0013] As a preferred option, a further technical solution to the above structure is:

[0014] A liquid level sensor is installed at the top of the reaction chamber, and the water inlet is located 5cm to 10cm below the liquid level when the chamber is full.

[0015] The beneficial effects obtained from the above features are: the outlet is located below the liquid surface, which generates better thrust on the water in the reaction chamber, resulting in more water undergoing spiral movement.

[0016] An air top plate is provided on the upper side of the bubble jet connector. Its periphery is sealed to the inner wall of the reaction chamber. The air top plate is arched and has several air holes that are perpendicular to the surface of the air top plate.

[0017] The beneficial effects obtained from the above features are as follows: This scheme designs the air top plate as an arch, with the air holes facing all directions above the reaction chamber. The gas-water mixture is sprayed into the air top plate under the action of a high-pressure pump, and the gas-water mixture is sprayed out from the air holes through the positive pressure on the lower side, thus dispersing more evenly in the reaction chamber.

[0018] A nozzle is installed on the air hole. The nozzle is a flexible rubber tube. A fixed tube embedded in the air hole is fixed to the lower end of the flexible rubber tube. An upper pressure plate is provided at the upper end of the fixed tube and a lower pressure plate is provided at the lower end.

[0019] The beneficial effects obtained from the above features are as follows: In this example, the point at which the bubbles are ejected is irregularly moved by the flexible rubber tube, thereby further improving the dispersion of the bubbles on any cross section of the reaction chamber.

[0020] It is also equipped with a drain pipe, with a lower elbow at the bottom for connecting to the water outlet connector, and an upper elbow at the top, which is located below the liquid level in the reaction chamber.

[0021] The beneficial effects obtained from the above features are as follows: In this example, the water in the reaction chamber that has absorbed the protein residue through bubbles is discharged in an overflow manner, which avoids the absorption of untreated sewage during the discharge and improves the cleanliness of the effluent.

[0022] A partition plate is installed at the bottom of the reaction chamber near the water outlet, and the two sides of the partition plate are sealed to the reaction chamber.

[0023] The beneficial effects obtained from the above features are: the partition plate separates the clean water treated by the bubbles from the dynamic environment of the reaction chamber, on the one hand, preventing the bubbles from being discharged from the water outlet and wasting the bubbles, and on the other hand, preventing the clean water entering the back of the partition plate from participating in the reaction and avoiding secondary mixing with the sewage.

[0024] The side of the partition plate facing the bubble jet connector is arc-shaped, and the end of the partition plate facing the bend of the inlet connector is lower than the end away from the bend of the inlet connector. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall solution of this utility model;

[0026] Figure 2 This is a three-dimensional view of the reaction chamber structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the bubble generating mechanism of this utility model;

[0028] Figure 4 This is a schematic diagram of the jet ejector structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the air ceiling panel of this utility model;

[0030] Figure 6 This is a structural diagram of the nozzle of this utility model;

[0031] Figure 7 This is a schematic diagram of the nozzle in use according to the present invention.

[0032] In the diagram: 1. Reaction chamber; 2. Water inlet connector; 3. Nozzle; 31. Flexible rubber tube; 32. Upper pressure plate; 33. Fixed pipe; 34. Lower pressure plate; 4. Air top plate; 5. High-pressure water pump; 6. Bubble jet connector; 7. Ejector; 71. Narrowing pipe; 72. Air inlet; 73. Flaring pipe; 8. Water outlet connector; 9. Drain pipe; 10. Partition plate. Detailed Implementation

[0033] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0034] See Figures 1 to 7 As shown, the present invention provides a protein separation device, comprising:

[0035] The reaction chamber 1 is used to contain wastewater rich in protein. It has an inlet connector 2 on the upper right side, a bubble jet connector 6 on the lower right side, and an outlet connector 8 on the lower left side. The inlet connector 2 is horizontally and tangentially inserted into the reaction chamber.

[0036] The bubble generating mechanism includes a high-pressure water pump 5 and an ejector 7. The ejector 7 includes a constriction tube 71 and a flare tube 73. The constriction tube 71 and the flare tube 73 are connected to each other. An air inlet 72 is provided at the throat. The end of the constriction tube 71 is connected to the high-pressure water pump 5 through a high-pressure nozzle. The end of the flare tube 73 is connected to the bubble injection connector 6 through another high-pressure nozzle.

[0037] The water inlet connector 2 is bent laterally at approximately 45 degrees to achieve tangency with the reaction chamber 1. The water inlet connector 2 uses a Φ50 PVC pipe, and the rear end is connected to a 0.75KW water pump with a capacity of 10t / h and a head of 10 meters. The high-pressure nozzle from the jet ejector 7 to the high-pressure water pump 5 is a Φ25 PVC pipe. The high-pressure water pump is 50.75KW with a capacity of 2 tons / h and a head of 40-50 meters. The high-pressure nozzle from the jet ejector 7 to the bubble jet connector 6 is a DN20 pipe with a water output of 1T / h to 3T / h.

[0038] The design of the inlet connector 2 in this invention causes the sewage to slowly rotate laterally. The seawater in the upper part of the reaction chamber 1 flows faster laterally, and the lateral rotation slows down as kinetic energy dissipates towards the bottom, eventually becoming still at the bottom of the reaction chamber. The bubble generating mechanism of this invention directly provides an air-rich water flow. The air enters through the throat of the ejector 7, where the water flow accelerates and breaks the large volume of air into fine bubbles. After entering the reaction chamber 1, the small bubbles rise linearly under buoyancy. Initially, the rising speed is relatively fast, but in the middle stage, they encounter the seawater with residual kinetic energy. The small bubbles use surface tension to adsorb tiny protein particles (approximately 20 micrometers in size) in the sewage onto their surface. The small bubbles are laterally deflected by the water flow, thus slowing their rising speed. As the small bubbles rise, they absorb proteins and oxygen from the water, thus growing larger. As they grow larger, the surface tension increases further, and the lateral deflection under the influence of the water flow becomes more pronounced. This makes the bubbles move more slowly in water with more impurities, achieving a better purification effect.

[0039] Preferably, a liquid level sensor is installed on the upper part of the reaction chamber 1, and the water inlet connector 2 is located 5cm to 10cm below the liquid surface when the water is full. The water inlet connector 2, which is slightly below the liquid surface, has a better thrust effect on the water, so that the water has both lateral and downward kinetic energy.

[0040] An air top plate 4 is provided on the upper side of the bubble jet connector 6. Its periphery is sealed to the inner wall of the reaction chamber 1. The air top plate 4 is arched and has several air holes. The air holes are perpendicular to the surface of the air top plate 4. The air top plate 4 is designed to be arched, with the air holes facing all directions above the reaction chamber 1. The gas-water mixture is sprayed into the air top plate 4 under the action of a high-pressure pump. The gas-water mixture is sprayed out from the air holes through the positive pressure on the lower side, and is more evenly dispersed in the reaction chamber 1.

[0041] Furthermore, a nozzle 3 is installed on the air hole. The nozzle 3 is a flexible rubber tube 31. A fixed tube 33 embedded in the air hole is fixedly connected to the lower end of the flexible rubber tube 31. An upper pressure plate 32 is provided at the upper end of the fixed tube 33, and a lower pressure plate 34 is provided at the lower end. As the gas-water mixture is injected at high speed into the chamber below the air top plate 4, the pressure in the chamber rises rapidly to high pressure. Under positive pressure, the gas-water mixture is ejected from the air hole. Under the action of the high-speed water flow, the flexible rubber tube swings, so that one nozzle 3 can spray small bubbles in multiple directions, making the bubbles more evenly dispersed in the reaction chamber 1.

[0042] By installing the flexible rubber tube 31, the point where the bubbles are ejected moves irregularly, thereby further improving the dispersion of bubbles on any cross section of the reaction chamber 1.

[0043] Preferably, a drain pipe 9 is also provided, with a lower elbow at the lower end for connecting to the water outlet connector 8, and an upper elbow at the upper end, the upper elbow being located below the liquid level in the reaction chamber 1; this example allows the clean water in the reaction chamber 1, after the protein residue has been adsorbed by bubbles, to be discharged by overflow, avoiding the absorption of untreated sewage during water discharge and improving the cleanliness of the drainage.

[0044] Preferably, a partition plate 10 is provided at the bottom of the reaction chamber 1 near the water outlet 8, and the two sides of the partition plate 10 are sealed to the reaction chamber 1. The partition plate 10 separates the purified water treated by the bubbles from the dynamic environment inside the reaction chamber 1. On the one hand, it prevents the bubbles from being discharged from the water outlet 8 and wasting the bubbles. On the other hand, it prevents the purified water entering the back side of the partition plate 10 from participating in the reaction and avoids secondary mixing with the sewage. Furthermore, the side of the partition plate 10 near the bubble jet connector 6 is arc-shaped, with the left end of the partition plate 10 being higher and the right end being lower. The height difference facilitates the entry of purified water into the back side.

[0045] Optionally, the height of the partition plate 10 is one-third of the height of the reaction chamber 1 or a fixed height of 800mm to 1500mm.

[0046] The inlet connector 2 and / or high-pressure water pipe are connected to the sand filter via the inlet pipe, and the sand filter is connected to the wastewater aquaculture tank. A drain valve is installed at the bottom of the reaction chamber 1 for draining seawater after shutdown.

[0047] This plan involves top-level water replenishment and bottom-level oxygenation; see [link / reference]. Figure 1 After seawater enters the reaction chamber (black arc), it rotates. The seawater in reaction chamber 1 moves downward as the bottom water is discharged. The bubbles (hollow circles) rise and meet in the middle of reaction chamber 1. When they encounter a low-speed rotating water flow, they rise while moving laterally, reducing their rising speed and thus staying in the water for a longer time. The bubbles continue to rise and move laterally when they encounter a fast water flow, further reducing their rising speed. When the wastewater comes into contact with the bubbles, the impurities contained within are captured by the bubbles. The purity increases as the wastewater moves towards the lower part of reaction chamber 1. Some of the clean water that descends to the bottom of reaction chamber 1 enters the back side of the partition plate 10 and is discharged from the drain pipe 9.

[0048] The beneficial effects of this invention are: 1) Accelerating the supply of air bubbles through a Venturi jet reduces investment in high-frequency equipment and lowers costs; 2) By setting the inlet at an angle, the wastewater in the reaction chamber rotates, and the bubbles are also spiraled upward by the water flow, staying in the wastewater for a longer time, thus giving the proteins in the water more opportunities to come into contact with the bubbles.

[0049] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A protein separation device, characterized in that, include: The reaction chamber (1) is used to contain wastewater rich in protein. It has an inlet connector (2) on the upper right side, a bubble jet connector (6) on the lower right side, and an outlet connector (8) on the lower left side. The inlet connector (2) is horizontally tangentially inserted into the reaction chamber. The bubble generating mechanism includes a high-pressure water pump (5) and an ejector (7). The ejector (7) includes a constriction tube (71) and a flare tube (73). The constriction tube (71) and the flare tube (73) are connected to each other. An air inlet (72) is provided at the throat. The end of the constriction tube (71) is connected to the high-pressure water pump (5) through a high-pressure nozzle. The end of the flare tube (73) is connected to the bubble injection connector (6) through another high-pressure nozzle.

2. The protein separation apparatus according to claim 1, characterized in that, A liquid level sensor is installed on the upper part of the reaction chamber (1), and the water inlet connector (2) is located 5cm to 10cm below the liquid surface when the chamber is full of water.

3. The protein separation apparatus according to claim 1, characterized in that, An air top plate (4) is provided on the upper side of the bubble jet connector (6), and its periphery is sealed to the inner wall of the reaction chamber (1). The air top plate (4) is arched and has several air holes, which are perpendicular to the surface of the air top plate (4).

4. The protein separation apparatus according to claim 3, characterized in that, A nozzle (3) is installed on the air hole. The nozzle (3) is a flexible rubber tube (31). A fixed tube (33) embedded in the air hole is fixedly connected to the lower end of the flexible rubber tube (31). An upper pressure plate (32) is provided at the upper end of the fixed tube (33), and a lower pressure plate (34) is provided at the lower end.

5. The protein separation apparatus according to claim 2, characterized in that, It is also equipped with a drain pipe (9), with a lower elbow at the lower end for connecting to the water outlet connector (8) and an upper elbow at the upper end, the upper elbow being located below the liquid level in the reaction chamber (1).

6. The protein separation apparatus according to claim 5, characterized in that, A partition plate (10) is provided on the bottom of the reaction chamber (1) near the water outlet connector (8). The two sides of the partition plate (10) are sealed to the inner wall of the reaction chamber (1).

7. The protein separation apparatus according to claim 6, characterized in that, The height of the partition plate (10) is one-third of the height of the reaction chamber (1) or the constant height is 800mm to 1500mm.

8. The protein separation apparatus according to any one of claims 1-7, characterized in that, The inlet connector (2) and / or high-pressure water pipe are connected to the sand filter through the inlet pipe, and the sand filter is connected to the polluted aquaculture pond.

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