Gas-liquid mixing system

Abstract

The utility model discloses a gas-liquid mixing system, which relates to the technical field of liquid cooling charging guns and comprises an ultrapure water machine, a nitrogen generator, a one-way valve, an electromagnetic valve, a cooling circulating pipeline, filtering equipment, a charging gun and a conductive battery cell, nitrogen is controlled to be input into the cooling circulation pipeline through the opening and closing frequency and the opening and closing time of the electromagnetic valve, bubble generation is adjusted, it is ensured that bubbles can smoothly enter the cooling circulation pipeline, the bubbles collide with the inner wall of the cooling circulation pipeline and the conductive cell to be broken, and mold impurities and separated-out metal conductive ions are stripped from the attachment surface. The ultrapure water cooling liquid mixed with mould impurities and metal conductive ions is filtered and adsorbed by the filtering equipment, and the filtered ultrapure water is cooled by the cooling system and flows into the ultrapure water machine again to be prepared and output, namely, the inner wall of the cooling circulating pipeline and the conductive battery core are cleaned by utilizing the circulation of the cooling liquid; the ultrapure water cooling liquid is prevented from conducting electricity, the cooling effect is improved, and the maintenance cost and potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid cooling charging gun technical field especially relates to a gas-liquid mixing system. BACKGROUND

[0002] Liquid cooling charging gun is a new energy charging equipment using liquid cooling system, mainly used in electric vehicle charging process, through cooling the heat generated in the charging process, improve charging efficiency and speed. Liquid cooling charging gun can be divided into indirect liquid cooling and immersion liquid cooling according to the cooling medium. Indirect liquid cooling mainly uses cooling liquid as heat dissipation medium, cable is designed with cooling pipeline, and heat is dissipated through the circulating flow of cooling liquid driven by water pump. Immersion liquid cooling is to directly immerse the cable in cooling liquid for heat dissipation.

[0003] Immersion liquid cooling charging gun is mainly composed of charging gun (vehicle plug), cooling liquid (part of the cooling liquid is ultrapure water, which is filtered and treated by ultrapure water machine to ensure that the water resistance reaches 10 to the sixth power ohm (10 million ohms) or above, so as to meet the requirements as cooling liquid), liquid cooling battery, cooling system (water cooling unit combined with ultrapure water unit), filter and related temperature control structure. Its working principle is that when the charger works, the charging cable and the charging gun will generate a lot of heat, which is absorbed by the cable and the charging gun immersed in the cooling liquid, and then the heat is taken away by the circulating flow of cooling liquid driven by the water cooling unit, and is transferred to the heat dissipation module for heat dissipation, and finally enters the ultrapure water machine for re-preparation, so as to ensure the efficiency and safety of the charging process, and the heated cooling liquid passes through the filter before entering the water cooling unit to filter the impurities in the cooling liquid, keeping the cooling liquid pure.

[0004] However, during long-term use, the cooling liquid circulation pipeline still has the following problems:

[0005] Firstly, although the ultrapure water is pure, it will have some contact with the external environment during the circulation process, such as the cooling tower, which will introduce a lot of air during the evaporation process of water, and the microorganisms (including mold) in the air may enter the cooling water, and the microorganisms may still be secondarily contaminated during storage and circulation, especially in the dead angle, crack and other parts of the pipeline, which is easy to accumulate dirt and water, providing a good growth condition for mold and other microorganisms. Although the filter can filter out the mold impurities in the ultrapure water, the ultrapure water circulation alone is difficult to clean the adsorbed mold in the circulation pipeline, thereby reducing the cooling effect of the ultrapure water;

[0006] Secondly, during long-term charging and discharging, the chemical reaction inside the battery will cause the deposited metal conductive ions to fall off and mix with the ultrapure water, thereby causing the risk of electric conduction of the cooling liquid and a great safety hazard.

[0007] The current way is to periodically disassemble and clean the immersed liquid cooling charging gun, and replace the new cooling liquid, which is difficult and complex to clean, and has high cost.

[0008] Therefore, it is necessary to design a gas-liquid mixing system to solve the above problems. Content of the utility model

[0009] The utility model provides a kind of gas-liquid mixing system, solve the technical problem proposed above.

[0010] To solve the above technical problems, the utility model provides a kind of gas-liquid mixing system, including ultrapure water machine, nitrogen generator, cooling circulation pipeline, filter equipment and charging gun, the charging gun is electrically connected with positive and negative electrode conductive core, and charging gun is fixedly connected with cooling circulation pipeline, the charging gun and positive and negative electrode conductive core are located inside cooling circulation pipeline, the cooling circulation pipeline is filled with ultrapure water coolant, and cooling circulation pipeline two ends are fixedly installed at ultrapure water machine water inlet end and water outlet end, the cooling circulation pipeline is installed with filter equipment near ultrapure water machine water inlet end position, and three-way valve is installed near ultrapure water machine water outlet end position, three-way valve is fixedly connected with gas conveying pipeline, and gas conveying pipeline is connected with nitrogen generator output end, electromagnetic valve and check valve are installed on gas conveying pipeline respectively.

[0011] Preferably, the filter equipment is one of reverse osmosis membrane filter or PP cotton filter.

[0012] Preferably, the nitrogen generator can generate high-pressure nitrogen and deliver to the inside of the cooling circulation pipeline and mix with the ultrapure water coolant to form bubble liquid.

[0013] Preferably, the three-way valve can also be connected with pressure tank filled with plastic particles through gas conveying pipeline, and gas conveying pipeline is also provided with electromagnetic valve and check valve.

[0014] Preferably, the electromagnetic valve is electrically connected with the control system of external liquid-cooled charging gun.

[0015] Compared with the related art, the utility model provides a kind of gas-liquid mixing system with the following beneficial effects:

[0016] The utility model provides, through the control system control solenoid valve opening of external liquid cooling charging gun, nitrogen gas is inputted to cooling circulation pipeline and ultrapure water coolant mixed formation produces bubble through gas delivery pipe, and through on -off solenval frequency and switch time, adjust the production of bubble, ensure that bubble can enter cooling circulation pipeline smoothly, bubble and the inner wall of cooling circulation pipeline collide and break, the mould impurity is stripped from the attached surface, bubble and the collision of conductive core break, the metal conductive ion of separation is stripped from the attached surface, the ultrapure water coolant mixed with mould impurity and the metal conductive ion of separation is filtered and adsorbed when passing through filter equipment, the filtered ultrapure water is cooled through water cooling unit, and is prepared and output in ultrapure water machine again, utilize the cleaning of the circulation of coolant to cooling circulation pipeline inner wall and conductive core, avoid ultrapure water coolant conduction, improve the cooling effect, reduce maintenance cost and security risk simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole schematic view of the gas-liquid mixing system of the utility model.

[0018] Reference numerals in the drawing: 1, ultrapure water machine; 2, nitrogen generator; 21, solenoid valve; 22, gas delivery pipeline; 23, check valve; 24, three-way valve; 3, cooling circulation pipeline; 4, filter equipment; 5, charging gun; 6, conductive core. DETAILED DESCRIPTION

[0019] Example one, by Figure 1 give, a kind of gas-liquid mixing system, including ultrapure water machine 1, nitrogen generator 2, cooling circulation pipeline 3, filter equipment 4 and charging gun 5, charging gun 5 is electrically connected with positive and negative conductive core 6, and charging gun 5 is fixedly connected with cooling circulation pipeline 3, charging gun 5 local and positive and negative conductive core 6 are located inside cooling circulation pipeline 3, cooling circulation pipeline 3 is filled with ultrapure water coolant, cooling circulation pipeline 3 two ends are fixedly installed at ultrapure water machine 1 water inlet end and water outlet end respectively, cooling circulation pipeline 3 is installed with filter equipment 4 near ultrapure water machine 1 water inlet end position, and three-way valve 24 is installed near ultrapure water machine 1 water outlet end position, three-way valve 24 is fixedly connected with gas delivery pipeline 22, gas delivery pipeline 22 is connected with nitrogen generator 2 output end, solenoid valve 21 and check valve 23 are installed on gas delivery pipeline 22 respectively.

[0020] Specifically, when the charger is working, the charging battery and the charging gun 5 will generate a large amount of heat, which is directly absorbed by the ultra-pure water coolant, and then the circulation of the coolant is driven by the ultra-pure water machine 1 to take away the heat and transfer it to the heat dissipation module for heat dissipation, thereby ensuring the efficiency and safety of the charging process, and the heated coolant enters the ultra-pure water machine 1 before the filter filters the impurities in the coolant, keeping the coolant pure; during the circulation of the ultra-pure water coolant, the one-way valve 23 is opened to prevent the ultra-pure water coolant in the cooling circulation channel from flowing backward into the nitrogen generator 2 through the one-way valve 23, and the electromagnetic valve 21 is controlled to open by the control system of the external liquid-cooled charging gun, nitrogen gas is input into the cooling circulation pipeline 3 through the gas delivery pipeline 22 to mix with the ultra-pure water coolant to form bubbles, in the process of ultra-pure water coolant delivery, bubbles collide and break with the inner wall of the cooling circulation pipeline 3, generating strong vortex and impact force to strip mold impurities from the attached surface and follow the flow of the ultra-pure water coolant, similarly, bubbles collide and break with the conductive battery 6, generating strong vortex and impact force to strip out metallic conductive ions from the attached surface and follow the flow of the ultra-pure water coolant, the ultra-pure water coolant mixed with mold impurities and metallic conductive ions passes through the filter device 4 to filter and adsorb the mold impurities and metallic conductive ions, and the filtered ultra-pure water is cooled by the water cooler and reflows into the ultra-pure water machine 1 for preparation and output, thereby completing the cleaning of the inner wall of the cooling circulation pipeline 3 and the conductive battery 6 by the circulation of the coolant, avoiding the conductivity of the ultra-pure water coolant, improving the cooling effect, and reducing maintenance cost and safety hazards.

[0021] The filter device 4 is one of a reverse osmosis membrane filter or a PP cotton filter, which filters mold impurities and metallic conductive ions in the ultra-pure water coolant through internal reverse osmosis membrane or PP cotton, thereby obtaining clean ultra-pure water coolant, and the filter device 4 can be disassembled in later stage to replace the internal reverse osmosis membrane or PP cotton.

[0022] The nitrogen generator 2 can generate high-pressure nitrogen gas and deliver it into the cooling circulation pipeline 3 to mix with the ultra-pure water coolant to form bubble liquid, bubbles collide and break with the inner wall of the cooling circulation pipeline 3, generating strong vortex and impact force to strip mold impurities from the attached surface and follow the flow of the ultra-pure water coolant, similarly, bubbles collide and break with the conductive battery 6, generating strong vortex and impact force to strip metallic conductive ions from the attached surface and follow the flow of the ultra-pure water coolant.

[0023] The electromagnetic valve 21 is electrically controlled by the control system of the external liquid-cooled charging gun, and the frequency and on-off time of the electromagnetic valve 21 are adjusted to regulate the generation of bubbles to ensure that the bubbles can smoothly enter the cooling circulation pipeline.

[0024] In the second embodiment, the three-way valve 24 is further connected to the pressure tank filled with plastic particles through the gas delivery pipeline 22, and the gas delivery pipeline 22 is also provided with the electromagnetic valve 21 and the one-way valve 23.

[0025] Specifically, during the circulation of the ultrapure water coolant, the one-way valve 23 is opened to prevent the ultrapure water coolant in the cooling circulation channel from flowing back to the pressure tank filled with plastic particles, the electromagnetic valve 21 is controlled to be opened by the control system of the external liquid-cooled charging gun, the plastic particles are input into the cooling circulation pipeline 3 through the gas delivery pipeline 22 to mix with the ultrapure water coolant, and the input amount of the plastic particles is adjusted by the frequency and switching time of the electromagnetic valve 21 to ensure that the plastic particles can smoothly enter the cooling circulation pipeline 3. During the delivery of the ultrapure water coolant, the plastic particles collide and rub with the inside of the cooling circulation pipeline 3 to strip the metal conductive ions and mold impurities from the attached surface and flow with the ultrapure water coolant. Similarly, the bubbles collide and rub with the conductive core 6 to strip the mold impurities and metal conductive ions from the attached surface and flow with the ultrapure water coolant. The ultrapure water coolant mixed with the mold impurities and metal conductive ions is filtered and adsorbed by the filter device 4 when passing through the filter device 4, and the filtered ultrapure water is cooled by the water cooler and then reflows into the ultrapure water machine 1 for preparation and output. Thus, the cleaning of the inner wall of the cooling circulation pipeline 3 and the conductive core 6 is completed by the circulation of the coolant, the conductivity of the ultrapure water coolant is avoided, the cooling effect is improved, and the maintenance cost and safety hazards are reduced.

[0026] Working principle:

[0027] During the circulation of the ultrapure water coolant, the one-way valve 23 is opened to prevent the ultrapure water coolant in the cooling circulation channel from flowing back to the nitrogen generator 2, the electromagnetic valve 21 is controlled to be opened by the control system of the external liquid-cooled charging gun, the nitrogen gas is input into the cooling circulation pipeline 3 through the gas delivery pipeline 22 to mix with the ultrapure water coolant to form bubbles, and the generation of the bubbles is adjusted by the frequency and switching time of the electromagnetic valve 21 to ensure that the bubbles can smoothly enter the cooling circulation pipeline 3.

[0028] In the process of transporting the ultrapure water coolant, the bubbles collide with the inner wall of the cooling circulation pipeline 3 and break, generating strong vortex and impact force, stripping mold impurities from the attached surface, and following the flow of the ultrapure water coolant. Similarly, the bubbles collide with the conductive core 6 and break, generating strong vortex and impact force, stripping metal conductive ions from the attached surface, and following the flow of the ultrapure water coolant. The ultrapure water coolant mixed with mold impurities and metal conductive ions is filtered and adsorbed when passing through the filtering device 4, and the filtered ultrapure water is cooled by the water cooler and reflows into the ultrapure water machine 1 for preparation and output. Thus, the cooling circulation pipeline 3 and the conductive core 6 are cleaned by the circulation of the coolant, avoiding the conductivity of the ultrapure water coolant, improving the cooling effect, and reducing maintenance costs and safety hazards.

Claims

1. A gas-liquid mixing system comprising an ultrapure water machine (1), a nitrogen gas generator (2), a cooling circulation pipeline (3), a filtering device (4) and a charging gun (5), characterized in that: The charging gun (5) is electrically connected with positive and negative electrode conductive battery core (6), and the charging gun (5) is fixedly connected with the cooling circulating pipeline (3), the charging gun (5) and the positive and negative electrode conductive battery core (6) are located in the cooling circulating pipeline (3), the cooling circulating pipeline (3) is filled with ultrapure water coolant, the cooling circulating pipeline (3) is fixedly installed at the water inlet end and the water outlet end of the ultrapure water machine (1), the cooling circulating pipeline (3) is installed with the filtering equipment (4) near the water inlet end of the ultrapure water machine (1), and the three-way valve (24) is installed near the water outlet end of the ultrapure water machine (1), the three-way valve (24) is fixedly connected with the gas conveying pipeline (22), the gas conveying pipeline (22) is connected with the nitrogen generator (2) output end, and the gas conveying pipeline (22) is installed with the electromagnetic valve (21) and the check valve (23).

2. The gas-liquid mixing system of claim 1, wherein, The filtering equipment (4) is one of reverse osmosis membrane filter or PP cotton filter.

3. The gas-liquid mixing system of claim 1, wherein, The nitrogen generator (2) can generate high-pressure nitrogen and deliver it to the cooling circulating pipeline (3) to mix with the ultrapure water coolant to form a bubble liquid.

4. The gas-liquid mixing system of claim 1, wherein, The three-way valve (24) can also be connected with the pressure tank filled with plastic particles through the gas conveying pipeline (22), and the gas conveying pipeline (22) is also installed with the electromagnetic valve (21) and the check valve (23).

5. The gas-liquid mixing system of claim 1, wherein, The electromagnetic valve (21) is electrically connected with the control system of the external liquid-cooled charging gun.

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