Novel multi-tube micro-channel emulsification equipment

Abstract

The utility model belongs to equipment for preventing marine fouling organisms from being attached to a seawater cooling system. The novel multi-pipe micro-channel emulsification equipment is characterized by comprising a first pump, a first branch pipe, a heater, an ultrasonic probe, fins, a second branch pipe, a second pump, a third pump and a third branch pipe, an outlet is formed in the other end of the main pipeline; ultrasonic probes are distributed outside the main pipeline; one end of the first branch pipe is an outlet end, and one end part of the first branch pipe is inserted into the main pipeline from the inlet end of the main pipeline; one end part of the second branch pipe is inserted into the main pipeline from the inlet end of the main pipeline, and first small holes with the diameter of 10 microns are distributed in the second branch pipe in the main pipeline at intervals of 10 millimeters in the direction from the inlet end to the outlet; one end of the third branch pipe is inserted into the main channel from the inlet end of the main pipeline, and second small holes with the diameter of 3 micrometers are distributed in the third branch pipe located in the main pipeline in the direction from the inlet end to the outlet every 10 mm. The equipment can simultaneously form two emulsion structures with different sizes.

Description

Technical Field

[0001] The utility model belongs to the equipment for preventing marine fouling organisms from attaching to the seawater cooling system, and particularly relates to a novel multi-tube microchannel emulsification device. Background Art

[0002] In order to solve the problems caused by the attachment and growth of marine fouling organisms in the system, mainly mechanical methods, physical methods, antifouling coating methods, chemical methods, biological methods and other solutions are adopted. Among them, the chemical method and the coating method belong to preventive measures, while the mechanical method and the physical method are used to remove the attached fouling. As the main means to eliminate the attachment of marine fouling organisms, the chemical method is carried out by introducing chlorine gas, electrolyzing seawater to produce chlorine or directly adding chemical agents. These water-soluble chemical agents can effectively prevent the attachment and growth of marine fouling organisms in the seawater pipeline system. However, these agents are evenly distributed in the seawater, and only the part in contact with the surface of the seawater cooling system can play the role of preventing attachment. Therefore, when used in large doses with the residual chlorine content in the water exceeding 0.5mg / L or even higher, a certain effect can be achieved, but it not only causes great waste of the agents, but also may cause secondary environmental pollution. This poses new requirements for those units that use chlorine-containing oxidizing chemical agents to prevent the attachment of marine fouling organisms. They must face the dual challenges of ensuring the killing effect while meeting the emission standards. Especially when meeting the residual chlorine emission standards, the effect of preventing the attachment of marine fouling organisms may be affected, which is a new risk that needs to be focused on. Summary of the Invention

[0003] The purpose of the utility model is to provide a novel multi-tube microchannel emulsification device, which can form two different sizes of emulsion structures simultaneously when applied.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a novel multi-tube microchannel emulsification device, which is characterized by comprising a first pump, a first branch pipe, a heater, an ultrasonic probe, fins, a second branch pipe, a second pump, a third pump, and a third branch pipe; one end of the main pipe is the inlet end and is closed, and the inlet end of the main pipe is provided with insertion holes for the first branch pipe, the second branch pipe, and the third branch pipe; the other end of the main pipe is provided with an outlet, and circular fins are arranged along the pipe wall at intervals of 20 millimeters from the inlet end to the outlet direction in the main pipe; ultrasonic probes are distributed outside the main pipe;

[0005] One end of the first branch pipe is the outlet end, one end of the first branch pipe is inserted into the main channel from the inlet end of the main pipe, and the other end of the first branch pipe is provided with a first pump; a heater is installed on the outer wall of the other end of the first branch pipe;

[0006] One end of the second branch pipe is a closed end. One end portion of the second branch pipe is inserted into the main channel from the inlet end of the main pipe. The second branch pipe located in the main pipe is provided with first small holes with a diameter of 10 microns at intervals of 10 millimeters in the direction from the inlet end to the outlet end. The second branch pipe located in a section of the main pipe is arranged in a spiral shape in the main pipe; the other end portion of the second branch pipe is located outside the main pipe, and a second pump is provided at the other end portion of the second branch pipe.

[0007] One end of the third branch pipe is a closed end. One end portion of the third branch pipe is inserted into the main channel from the inlet end of the main pipe. The third branch pipe located in the main pipe is provided with second small holes with a diameter of 3 microns at intervals of 10 millimeters in the direction from the inlet end to the outlet end. The third branch pipe located in the main pipe is arranged in a spiral shape in the main pipe; the other end portion of the third branch pipe is located outside the main pipe, and a third pump is provided at the other end portion of the third branch pipe.

[0008] Ultrasonic probes are arranged in an array at intervals of 150 millimeters in the direction from the inlet end to the outlet end outside the main pipe. The frequency of each ultrasonic probe is 40KHZ and the power is 30 watts.

[0009] The main pipe of the novel multi-pipe microchannel emulsification device is 5 meters long, 30 millimeters in diameter, and 2 millimeters thick; the first branch pipe is 1 meter long, 10 millimeters in diameter, and 1 millimeter thick; the second branch pipe is 6 meters long, 4 millimeters in diameter, and 1 millimeter thick; the third branch pipe is also 6 meters long, 2 millimeters in diameter, and 0.5 millimeter thick.

[0010] The beneficial effects of the present utility model are as follows: Due to the adoption of the first branch pipe, the second branch pipe, the third branch pipe, as well as the first small holes and the second small holes, two different sizes of emulsions can be formed simultaneously when the device is applied. An emulsion with a micro-nano structure is prepared by a novel multi-pipe microchannel emulsification device (or a novel multi-component emulsion forming device) capable of simultaneously forming two different sizes of emulsion structures, which not only reduces costs but also greatly improves the efficiency of industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural diagram of the novel multi-pipe microchannel emulsification device of the present utility model.

[0012] In the figure: 1 - first pump, 2 - first branch pipe, 3 - heater, 4 - ultrasonic probe, 5 - fin, 6 - first small hole, 7 - second branch pipe, 8 - second pump, 9 - third pump, 10 - third branch pipe, 11 - second small hole, 12 - main pipe, 13 - outlet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0014] As Figure 1As shown, the novel multi-tube microchannel emulsification device (capable of simultaneously forming two emulsion structures of different sizes) includes a first pump 1, a first branch pipe 2, a heater 3, an ultrasonic probe 4, fins 5, a second branch pipe 7, a second pump 8, a third pump 9, and a third branch pipe 10; one end of the main pipe 12 is an inlet end and is closed. Insertion holes for the first branch pipe, the second branch pipe, and the third branch pipe (for inserting the first branch pipe, the second branch pipe, and the third branch pipe into the main pipe 12 respectively) are provided at the inlet end of the main pipe 12; the other end of the main pipe 12 is provided with an outlet 13. Circular fins 5 are arranged along the pipe wall of the main pipe 12 at intervals of 20 millimeters from the inlet end to the outlet 13 direction; ultrasonic probes 4 are arranged in an array at intervals of 150 millimeters from the inlet end to the outlet 13 direction outside the main pipe 12. The frequency of each ultrasonic probe 4 is 40KHZ and the power is 30 watts;

[0015] One end of the first branch pipe 2 is an outlet end. One end portion of the first branch pipe 2 is inserted into the main channel from the inlet end of the main pipe 12. A first pump 1 is provided at the other end portion of the first branch pipe 2 (the other end portion of the first branch pipe 2 is located outside the main pipe 12, and a high-pressure metering pump can be used to input the continuous phase solution of water and emulsification aid into the main pipe 12); an electric heater 3 (which can be an electric heater) is installed (sheathed) on the outer wall of the other end portion of the first branch pipe 2;

[0016] One end of the second branch pipe 7 is a closed end. One end portion of the second branch pipe 7 is inserted into the main channel from the inlet end of the main pipe 12. First small holes 6 with a diameter of 10 micrometers are distributed at intervals of 10 millimeters from the inlet end to the outlet direction of the second branch pipe 7 located in the main pipe 12. The second branch pipe 7 located in the main pipe 12 is arranged in a spiral shape in the main pipe 12; the other end portion of the second branch pipe 7 is located outside the main pipe 12. A second pump 8 is provided at the other end portion of the second branch pipe 7 {The second pump can be a high-pressure metering pump to input the A-component dispersed phase solution composed of (C 14 -C 30 ) long-chain alkylamine, penetrant, and stabilizer into the main pipe 12 through the first small holes 6 on it};

[0017] One end of the third branch pipe 10 is a closed end. One end portion of the third branch pipe 10 is inserted into the main channel from the inlet end of the main pipe 12. Second small holes 11 with a diameter of 3 micrometers are distributed at intervals of 10 millimeters from the inlet end to the outlet direction of the third branch pipe 10 located in the main pipe 12. The third branch pipe 10 located in the main pipe 12 is arranged in a spiral shape in the main pipe 12; the other end portion of the third branch pipe 10 is located outside the main pipe 12. A third pump 9 is provided at the other end portion of the third branch pipe 10 {The third pump can be a high-pressure metering pump, and the B-component dispersed phase solution composed of (C 6 -C 12 ) short-chain alkylamine, the remaining penetrant, and the remaining stabilizer is input into the main pipe 12 through the 3-micrometer second small holes 11 on it}.

[0018] In this embodiment: The main pipeline 12 of the novel multi-tube microchannel emulsification device is 5 meters long, 30 millimeters in diameter, 2 millimeters thick, and made of 316 stainless steel; the first branch pipe 2 is 1 meter long, 10 millimeters in diameter, 1 millimeter thick, and made of 316 stainless steel; the second branch pipe 7 is 6 meters long, 4 millimeters in diameter, 1 millimeter thick, and made of 316 stainless steel; the third branch pipe 10 is also 6 meters long, 2 millimeters in diameter, 0.5 millimeter thick, and made of 316 stainless steel.

[0019] Application: A protection method for preventing marine fouling organisms from attaching to a seawater cooling system, comprising the following steps:

[0020] 1) Prepare the novel multi-tube microchannel emulsification device; as described above;

[0021] 2) Prepare the raw material reagents for preventing marine fouling organisms from attaching to the seawater cooling system;

[0022] 3) Prepare the medicament for preventing marine fouling organisms from attaching to the seawater cooling system: Turn on the heater and ultrasonic probe in the novel multi-tube microchannel emulsification device;

[0023] The emulsification aid and water in the raw material reagents are stirred evenly to obtain a continuous phase solution, which is input into the main pipeline 12 through the first branch pipe 2 and the first pump 1 of the novel multi-tube microchannel emulsification device, with a flow rate of 5 - 20 liters per hour and a temperature of 40 - 50 °C (the temperature is adjusted by the heater);

[0024] The (C 14 -C 30 ) long-chain fatty alkylamine, penetrant, and stabilizer in the raw material reagents are formulated into a mixed liquid A component dispersed phase solution according to a mass ratio of 7:2:1, stirred evenly, and input into the main pipeline 12 through the second branch pipe 7, the second pump 8, and the first small hole 6 on the second branch pipe 7; the flow rate is 0.5 - 2 liters per hour;

[0025] The (C 6 -C 12 ) short-chain fatty alkylamine, the remaining penetrant, and the remaining stabilizer in the raw material reagents are formulated into a B component dispersed phase solution, stirred evenly, and input into the main pipeline 12 through the third branch pipe 10, the third pump 9 (high-pressure metering pump), and the second small hole 11 on the third branch pipe 10; the flow rate is 0.5 - 2 liters per hour;

[0026] Each ultrasonic probe has a frequency of 40 KHz and a power of 30 W. Ultrasonic radiation acts on the main pipeline 12. The pressure in the main pipeline 12 is 1 - 2 Mpa, and the raw material reagent (mixture) flows in the main pipeline 12 for 5 - 30 minutes; the continuous phase solution and the A-component dispersed phase solution form a micron-scale emulsion; the continuous phase solution and the B-component dispersed phase solution form a nano-scale emulsion, which is discharged from the outlet 13 of the main pipeline 12 to obtain the medicament for preventing marine fouling organisms from attaching to the seawater cooling system; as measured by a nanoparticle detector, it contains two main emulsion particles, one is 80 - 160 nanometers, and the other is 5 - 50 microns; the medicament has the characteristics of being uniform, stable, and excellent in performance;

[0027] 4) Inject the medicament for preventing marine fouling organisms from attaching to the seawater cooling system into the pipeline of the seawater cooling system so that the concentration of the medicament in seawater is 1 - 5 mg / L (that is, the medicament is applied to the seawater cooling system), 1 - 7 times a week, and the dosing duration each time is 1 - 12 h (the medicament added is the said medicament).

[0028] A raw material reagent for preventing marine fouling organisms from attaching to the seawater cooling system to implement the above method, mainly composed of alkylamine, penetrant, emulsification aid, stabilizer, and water (these materials are prepared into an emulsion with micron and nano structures through a novel multi-tube microchannel emulsification device); the mass percentages of each material are: alkylamine 5 - 25%, penetrant 1 - 5%, emulsification aid 0.1 - 2%, stabilizer 1 - 5%, and water 63% - 92.9%;

[0029] The said alkylamine mainly consists of long-chain fatty alkylamine containing (C 14 -C 30 ) and short-chain fatty alkylamine containing (C 6 -C 12 ), among which the mass ratio of the long-chain fatty alkylamine containing (C 14 -C 30 ) accounts for 20 - 60%, and the mass ratio of the short-chain fatty alkylamine containing (C 6 -C 14 ) accounts for 40 - 80%.

[0030] The said long-chain fatty alkylamine containing (C 14 -C 30 ) includes any one or a mixture of two or more in any ratio of N-oleyl-1,3-propylenediamine, N-tetradecyl-1,3-propylenediamine, N1-hexadecyl-1,3-propanediamine, N-octadecyl-1,3-propylenediamine, N-docosylpropane-1,3-diamine, etc.

[0031] The said short-chain fatty alkylamine containing (C 6 -C 12)The short-chain fatty alkylamines include any one or a mixture of two or more of N-coconut alkyl-1,3-propylenediamine, N-dodecyl-1,3-propylenediamine, N-(3-aminopropyl)-N-dodecyl-1,3-propanediamine, etc. in any ratio.

[0032] The penetrant described above is composed of any one or a mixture of two or more of saturated or unsaturated carbon chain fatty amine polyoxyethylene ethers, etc. in any ratio.

[0033] The penetrant includes any one or a mixture of two or more of octadecylamine polyoxyethylene ether, oleylamine polyoxyethylene ether, dodecylamine polyoxyethylene ether, tetradecyl polyoxyethylene ether, hexadecyl polyoxyethylene ether, coconut oil amine polyoxyethylene ether, etc. in any ratio.

[0034] The emulsification aid includes any one or a mixture of two or more of dodecylbenzenesulfonic acid, sodium dodecylbenzenesulfonate, ammonium dodecylbenzenesulfonate, etc. in any ratio.

[0035] The stabilizer includes any one or a mixture of two or more of diethylene glycol, dipropylene glycol, 2-amino-2-methyl-1-propanol, 2-(methylamino)ethanol, etc. in any ratio.

[0036] Long-term research shows that alkylamines can easily adsorb on the metal surface to form a thin film. It not only has excellent functions of sterilization, algae inhibition and preventing the growth of microorganisms, but also can effectively strip biological slime. At the same time, it has a certain corrosion inhibition effect and can be biodegradable. By utilizing these characteristics of alkylamines, we can effectively prevent the deposition of organic nutrients such as biological slime on the surface of the seawater cooling system, thus depriving the environment for the growth of bacteria and algae and preventing the attachment and growth of marine fouling organisms on the seawater cooling system. From an economic perspective, we can prepare alkylamines into emulsions that are slightly soluble in seawater. Due to the non-uniform distribution of the emulsion medicament in seawater and the action of the surface tension of the emulsion, the medicament concentration on the surface of the object in contact with seawater is relatively high, thus reducing the use concentration of the medicament and reducing the usage amount of alkylamines. At the same time, the research also found that when the emulsion has both nano and microstructures, it will show more excellent functions in preventing the attachment of marine fouling organisms. However, if only the conventional emulsification method is adopted, that is, simply mixing various materials and then carrying out high-speed shearing, it will be difficult to form emulsions with different particle sizes, and thus the synergistic effect of two emulsions with different particle sizes in preventing the attachment of marine fouling organisms cannot be achieved.

[0037] When the alkylamine emulsion has both nano and microstructures, it can more effectively prevent the attachment of marine fouling organisms, thus successfully solving the problem of the growth and attachment of marine fouling organisms in seawater cooling systems. This method and its agents can effectively prevent the attachment and growth of marine fouling organisms on seawater cooling systems, thereby avoiding the blockage problem of seawater cooling systems and ensuring the safe operation of seawater cooling systems. The seawater discharge of this utility model fully complies with the relevant discharge limits in the "Integrated Wastewater Discharge Standard GB 8978-1996". Especially for the problem that the residual chlorine in the drainage water exceeds the standard due to the addition of chlorine-containing agents to prevent the attachment of marine fouling organisms in seawater cooling systems and cannot meet the "Discharge Standard for Seawater Cooling Water GB / T 39361-2020", this utility model provides a solution, ensuring the safe and economic operation of seawater cooling systems and achieving the dual goals of economy and environmental protection at the same time.

[0038] Application Example 1:

[0039] A protection method for preventing the attachment of marine fouling organisms to seawater cooling systems includes the following steps:

[0040] 1) Prepare a new multi-tube microchannel emulsification device (as described above);

[0041] 2) Prepare the raw material reagents for preventing the attachment of marine fouling organisms to seawater cooling systems (as described below);

[0042] 3) Prepare the agents used for preventing the attachment of marine fouling organisms to seawater cooling systems: Turn on the heater and ultrasonic probe in the new multi-tube microchannel emulsification device;

[0043] The emulsification aid and water in the raw material reagents are stirred evenly to obtain a continuous phase solution, which is input into the main pipeline 12 through the first branch pipe 2 and the first pump 1 of the new multi-tube microchannel emulsification device at a flow rate of 5-20 liters per hour and a temperature of 40-50 °C (the temperature is adjusted by the heater);

[0044] The (C 14 -C 30 ) long fatty chain alkylamine, penetrant and stabilizer in the raw material reagents are formulated into a mixed liquid A component dispersion phase solution according to a mass ratio of 7:2:1, stirred evenly, and input into the main pipeline 12 through the second branch pipe 7, the second pump 8, and the first small hole 6 on the second branch pipe 7; the flow rate is 0.5-2 liters per hour;

[0045] The (C 6 -C 12)A B-component dispersed phase solution composed of short-chain fatty alkyl amines, the remaining penetrant, and the remaining stabilizer is stirred evenly and input into the main pipeline 12 through the third branch pipe 10, the third pump 9 (high-pressure metering pump), and the second small hole 11 on the third branch pipe 10; the flow rate is 0.5 - 2 liters per hour;

[0046] Each ultrasonic probe has a frequency of 40KHz and a power of 30W, and ultrasonic radiation acts on the main pipeline 12. The pressure in the main pipeline 12 is 1 - 2 Mpa, and the raw material reagents (mixture) flow in the main pipeline 12 for 5 - 30 minutes; the continuous phase solution and the A-component dispersed phase solution form a micron-scale emulsion; the continuous phase solution and the B-component dispersed phase solution form a nano-scale emulsion, which is discharged from the outlet 13 of the main pipeline 12 to obtain the medicament for preventing marine fouling organisms from attaching to the seawater cooling system; measured by a nanoparticle detector, it contains two main emulsion particles, one is 80 - 160 nanometers, and the other is 5 - 50 microns; the medicament has the characteristics of being uniform, stable, and excellent in performance;

[0047] 4) Inject the medicament for preventing marine fouling organisms from attaching to the seawater cooling system into the pipeline of the seawater cooling system so that the concentration of the medicament in the seawater is 1.8 - 2.2 mg / L (about 2.0 mg / L, and the medicament is applied to the seawater cooling system), 3 - 5 times a week, and the dosing duration each time is 4 - 6 h (when the concentration of the medicament is lower than 1.8 mg / L, add the medicament to keep the concentration of the medicament injected into the pipeline of the seawater cooling system at 1.8 - 2.2 mg / L).

[0048] A raw material reagent for preventing marine fouling organisms from attaching to the seawater cooling system that realizes the above method, mainly composed of alkyl amines, penetrants, emulsification aids, stabilizers, and water (these materials are prepared into emulsions with micron and nano structures through a new type of multi-tube microchannel emulsification device); the mass percentages of each material are: alkyl amines 15%, penetrants 3%, emulsification aids 1%, stabilizers 3%, and water 78%;

[0049] The alkyl amines mentioned above mainly consist of long-chain fatty alkyl amines containing (C 14 -C 30 ) and short-chain fatty alkyl amines containing (C 6 -C 12 ), among which the mass ratio of the long-chain fatty alkyl amines containing (C 14 -C 30 ) accounts for 30%, and the mass ratio of the short-chain fatty alkyl amines containing (C 6 -C 12 ) accounts for 70%.

[0050] The (C 14 -C 30) The long-chain alkylamine is N-oleyldipropylenetriamine. The (C 6 -C 12 ) The short-chain alkylamine is N-cocoyldipropylenetriamine.

[0051] The penetrant is octadecylamine polyoxyethylene ether.

[0052] The emulsification aid is dodecylbenzenesulfonic acid.

[0053] The stabilizer is diethylene glycol.

[0054] Application Example 2:

[0055] A method for preventing marine fouling organisms from attaching to a seawater cooling system is basically the same as that in Example 1, except that:

[0056] The (C 14 -C 30 ) The long-chain alkylamine is N-tetradecyldipropylenetriamine. The (C 6 -C 12 ) The short-chain alkylamine is N-dodecyldipropylenetriamine.

[0057] The penetrant is oleylamine polyoxyethylene ether.

[0058] The emulsification aid is sodium dodecylbenzenesulfonate.

[0059] The stabilizer is dipropylene glycol.

[0060] Application Example 3:

[0061] A method for preventing marine fouling organisms from attaching to a seawater cooling system is basically the same as that in Example 1, except that:

[0062] The (C 14 -C 30 ) The long-chain alkylamine is N1-hexadecyldipropylenediamine. The (C 6 -C 12 ) The short-chain alkylamine is N-(3-aminopropyl)-N-dodecyldipropylenediamine.

[0063] The penetrant is dodecylamine polyoxyethylene ether.

[0064] The emulsification aid is ammonium dodecylbenzenesulfonate.

[0065] The stabilizer is 2-amino-2-methyl-1-propanol.

[0066] Application Example 4:

[0067] A method for preventing marine fouling organisms from attaching to a seawater cooling system is basically the same as that of Example 1, except that:

[0068] The (C 14 -C 30 ) long-chain fatty alkylamine is N-octadecyl-1,3-propanediamine. The (C 6 -C 12 ) short-chain fatty alkylamine is N-coconut oil-based-1,3-propylene diamine.

[0069] The penetrant is tetradecyl polyoxyethylene ether.

[0070] The emulsification aid is dodecylbenzenesulfonic acid.

[0071] The stabilizer is 2-(methylamino)ethanol.

[0072] Application effect test of a method for preventing marine fouling organisms from attaching to a seawater cooling system in Application Examples 1-4:

[0073] 1. Test water quality

[0074] The test water quality is seawater, which is taken from the forebay of a thermal power plant using seawater as a circulating cooling water system (i.e., a seawater cooling system).

[0075] 2. Test device

[0076] The test device consists of a power supply, a flow meter, a water pump, inlet and outlet pipes, a test box, etc. The test box is made of PP plastic. The test box is separated into three parts, namely a seawater inlet compartment, an intermediate marine organism placement compartment, and a drainage compartment, by PP plastic plates, and the three are interconnected by drilling holes.

[0077] 3. Test supplies

[0078] 1) Beakers, measuring cylinders, volumetric flasks, pipettes, balances, metering pumps, etc.

[0079] 4. Test marine organisms

[0080] The test marine organisms are mussels and littleneck clams. Mussels and littleneck clams are collected from the sea and acclimated in seawater for at least seven days before the test.

[0081] 5. Judgment criteria

[0082] 5.1 Judgment criteria for the death of marine organisms

[0083] (1) Death criteria for mussels: unable to close when touched after the shell is opened; count the mortality rate of mussels in the blank test box and the mortality rate of mussels in the test box with the addition of medicine.

[0084] (2) Death criteria for littleneck clams: unable to close when touched after the shell is opened; count the mortality rate of littleneck clams in the blank monitoring box and the mortality rate of littleneck clams in the medicine-adding test box.

[0085] 5.2 Judgment criteria for marine organism attachment and growth

[0086] After a 15-day cycle of the test, observe or touch by hand the attachment and growth of marine organisms on the inner wall of the drainage tank in the blank test box and the medicine-adding test box respectively.

[0087] 6. Test method

[0088] 6.1 After the test device is connected, turn on the power supply to make the water pump operate normally, and ensure the stable seawater flow by adjusting the valves on the pipeline and calibrating the flowmeter.

[0089] 6.2 Put a certain number of mussels and littleneck clams into the experimental cabin of the test box.

[0090] 6.3 Calculate the dosage of the test medicine according to the flow rate of the test seawater, and then turn on the metering pump to make the medicine concentration in the seawater 2 mg / L and add the medicine for 8 hours.

[0091] 6.4 Add the medicine once every 1 day according to the method in 6.3.

[0092] 6.5 Conduct a blank test at the same time.

[0093] 6.5 End the test after 15 days of the test, and observe the death, attachment and growth of marine organisms.

[0094] 7. Test results

[0095] Table 1 Marine organism test data

[0096]

[0097]

[0098] 8. Experimental conclusion

[0099] The above experimental results show that the medicine of the present utility model is applicable to the industrial cooling water circulation system using seawater as a supplementary water source to prevent the attachment and growth of marine organisms. The seawater discharge fully complies with the relevant discharge limits in the "Integrated Wastewater Discharge Standard" (GB 8978-1996). Especially for the problem in the seawater cooling system that the residual chlorine in the drainage water exceeds the standard due to the addition of chlorine-containing medicine to prevent the attachment of marine fouling organisms and cannot meet the "Discharge Standard for Seawater Cooling Water" (GB / T 39361-2020), the present utility model provides a solution, ensuring the safe and economic operation of the system and achieving the dual goals of economy and environmental protection at the same time.

[0100] Application Example 5:

[0101] A protection method for preventing marine fouling organisms from attaching to a seawater cooling system is basically the same as one of those in Embodiments 1-4, except that the mass percentages of each material are as follows: alkylamine 5%, penetrant 1%, emulsification aid 0.1%, stabilizer 1%, and water 92.9%.

[0102] Application Example 6:

[0103] A protection method for preventing marine fouling organisms from attaching to a seawater cooling system is basically the same as one of those in Embodiment 1, except that the mass percentages of each material are as follows: alkylamine 25%, penetrant 5%, emulsification aid 2%, stabilizer 5%, and water 63%.

[0104] Application Example 7:

[0105] A protection method for preventing marine fouling organisms from attaching to a seawater cooling system is basically the same as Embodiment 1, except that in step 4), the medicament used to prevent marine fouling organisms from attaching to the seawater cooling system is injected into the pipeline of the seawater cooling system so that the concentration of the medicament in the seawater is 1-2 mg / L, 1-3 times a week, and the medicament addition duration each time is 10-12 h.

[0106] Application Example 8:

[0107] A protection method for preventing marine fouling organisms from attaching to a seawater cooling system is basically the same as Embodiment 1, except that in step 4), the medicament used to prevent marine fouling organisms from attaching to the seawater cooling system is injected into the pipeline of the seawater cooling system so that the concentration of the medicament in the seawater is 4.5-5 mg / L, 6-7 times a week, and the medicament addition duration each time is 1-4 h.

[0108] The application effect tests of Embodiments 5-8 were carried out in the same way as the above method, and the results are as follows:

[0109] Table 2 Marine organism test data

[0110]

[0111] The above experimental results indicate that the agent of the present utility model is applicable to the industrial cooling water circulation system with seawater as the supplementary water source to prevent the attachment and growth of marine organisms. The seawater discharge fully complies with the relevant discharge limits in the "Integrated Wastewater Discharge Standard GB 8978-1996". In particular, for the problem in the seawater cooling system that the residual chlorine in the drainage water exceeds the standard due to the addition of chlorine-containing agents to prevent the attachment of marine fouling organisms and cannot meet the "Discharge Standard for Seawater Cooling Water GB / T 39361-2020", the present utility model provides a solution, ensuring the safe and economic operation of the system and achieving the dual goals of economy and environmental protection at the same time.

[0112] The preferred embodiments of the present utility model have been described in detail above, but the above content is only the preferred embodiments of the present utility model and cannot be considered as limiting the scope of implementation of the present utility model. All equivalent changes and improvements made according to the scope of the application of the present utility model should still fall within the scope covered by the patent of the present utility model.

Claims

1. New multi-tube microchannel emulsification equipment, characterized by The invention comprises a first pump (1), a first branch pipe (2), a heater (3), an ultrasonic probe (4), fins (5), a second branch pipe (7), a second pump (8), a third pump (9), and a third branch pipe (10); one end of the main pipe (12) is an inlet end and is closed, and the inlet end of the main pipe (12) is provided with insertion holes for the first branch pipe, the second branch pipe, and the third branch pipe; the other end of the main pipe (12) is provided with an outlet (13), and annular fins (5) are provided in the main pipe (12) at intervals of 20 mm along the pipe wall in a direction from the inlet end to the outlet (13); and ultrasonic probes (4) are distributed outside the main pipe (12); One end of the first branch pipe (2) is an outlet end, one end of the first branch pipe (2) is inserted into the main channel from the inlet end of the main pipeline (12), and the other end of the first branch pipe (2) is provided with a first pump (1); a heater (3) is installed on the outer wall of the other end of the first branch pipe (2); One end of the second branch pipe (7) is a closed end. One end of the second branch pipe (7) is inserted into the main channel from the inlet end of the main pipe (12). The second branch pipe (7) located in the main pipe (12) has first small holes (6) with a diameter of 10 micrometers distributed every 10 millimeters in the direction from the inlet end to the outlet. The second branch pipe (7) located in a section of the main pipe (12) is arranged in a spiral shape in the main pipe (12); the other end of the second branch pipe (7) is located outside the main pipe (12). A second pump (8) is provided at the other end of the second branch pipe (7); One end of the third branch pipe (10) is a closed end. One end of the third branch pipe (10) is inserted into the main channel from the inlet end of the main pipe (12). The third branch pipe (10) located in the main pipe (12) has second small holes (11) with a diameter of 3 microns distributed every 10 mm in a direction from the inlet end to the outlet. The third branch pipe (10) located in the main pipe (12) is arranged in a spiral shape in the main pipe (12); the other end of the third branch pipe (10) is located outside the main pipe (12). A third pump (9) is provided at the other end of the third branch pipe (10).

2. The novel multi-tube microchannel emulsification equipment according to claim 1 is characterized in that: Ultrasonic probes (4) are arranged in an array at intervals of 150 mm outside the main pipeline (12) in a direction from the inlet end to the outlet (13), and each ultrasonic probe (4) has a frequency of 40 kHz and a power of 30 watts.

3. The novel multi-tube microchannel emulsification equipment according to claim 1 is characterized in that: The main pipe (12) is 5 meters long, 30 mm in diameter and 2 mm in wall thickness; the first branch pipe (2) is 1 meter long, 10 mm in diameter and 1 mm in wall thickness; the second branch pipe (7) is 6 meters long, 4 mm in diameter and 1 mm in thickness; the third branch pipe (10) is also 6 meters long, 2 mm in diameter and 0.5 mm in wall thickness.

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