Automatic methanol and water mixing device

Abstract

The present application relates to the field of methanol and water mixing, and particularly relates to a methanol and water automatic mixing device, which comprises a mixing unit, a water supply path, a methanol supply path, a mixed water storage unit, the mixing unit comprising a liquid tank, two liquid level meters, two mixing pipes, a mixing electromagnetic valve and a mixing pump. A partition is arranged in the liquid tank to divide the tank into a water tank and a methanol tank, the liquid level meters are arranged on the upper parts of the two tanks respectively, and the heights are consistent. The mixing pipes are respectively inserted into the water tank and the methanol tank and are connected through the mixing pump. The water tank is connected with the water supply path, and the methanol tank is connected with the methanol supply path and the mixed water storage unit. The water supply path and the methanol supply path are used to respectively supplement the corresponding liquid to the water tank and the methanol tank, the liquid level meters limit the capacity, and the proportion of water and methanol is ensured to be fixed. After the mixing electromagnetic valve and the mixing pump are opened, the water and the methanol are fully mixed, the mixed water is stored in the mixed water storage unit, after the mixing pump and the electromagnetic valve are closed, the water and the methanol are supplemented again, the precise proportioning is realized, and the negative pressure problem is solved.

Description

Technical Field

[0001] This invention relates to the field of methanol-water mixing, and more particularly to an automatic methanol-water mixing device. Background Technology

[0002] Currently, automatic methanol-water mixing devices are capable of automatically proportioning and mixing methanol and water, ensuring that methanol and water are mixed in a predetermined ratio to achieve the required concentration. However, existing technologies often employ two methods: first, setting the water tank and methanol tank in a specific ratio and mixing them after they are full; however, since both the water tank and methanol tank are fully loaded, it is very unfavorable for the flow of liquids, and it is easy for a large pressure difference to occur on both sides, damaging the seals; second, controlling the amount of water and methanol to mix through software, but because there is space in the pipeline and pump body, the set amount is inconsistent with the actual amount mixed, resulting in low mixing accuracy. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic methanol-water mixing device to solve the problems of low mixing efficiency and poor mixing quality.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: An automatic methanol-water mixing device includes a mixing unit, a water supply line, a methanol supply line, and a mixed water storage unit. The mixing unit includes a liquid tank, a first level gauge, a second level gauge, a first mixing pipe, a second mixing pipe, a mixing solenoid valve, and a mixing pump. A partition is provided inside the liquid tank, which proportionally divides the liquid tank into a water tank and a methanol tank. The first level gauge is located on the upper inner side of the water tank, and the second level gauge is located on the upper inner side of the methanol tank. The first level gauge and the second level gauge are at the same height. The first mixing pipe is inserted inside the water tank, and the second mixing pipe is inserted inside the methanol tank. The first mixing pipe and the second mixing pipe are connected through the mixing pump. The water tank and the methanol tank are connected through the mixing solenoid valve. The water tank is connected to the water supply line, and the methanol tank is connected to both the methanol supply line and the mixed water storage unit.

[0005] Furthermore, the water supply path includes a recovery water tank, a first supply pump, a first check valve, and a deionizer connected in sequence by pipelines, and the deionizer is connected to the water tank.

[0006] Furthermore, the recycled water tank is equipped with a water inlet and an overflow outlet.

[0007] Furthermore, it also includes a water recycling unit, which is connected to the recycling water tank.

[0008] Furthermore, the water recovery unit includes a water recovery condenser, an air-cooled condenser, a circulating pump, and a water vapor separator. The recovery water tank, the circulating pump, the water recovery condenser, and the air-cooled condenser form a circulating water circuit. The water vapor separator is connected to the water recovery condenser and the recovery water tank, respectively. The water recovery condenser is used to connect the reforming high-temperature tail gas and the fuel cell stack cathode tail gas.

[0009] Furthermore, the methanol supply route includes a second check valve, a second supply pump, a methanol supply tank, and a third supply pump connected in sequence via pipelines, with the second check valve connected to the methanol tank.

[0010] Furthermore, the mixed water storage unit includes a methanol tank, a fourth replenishment pump, and a liquid detection module connected in sequence, with the liquid detection module connected to the methanol tank.

[0011] Furthermore, both the water tank and the methanol tank are equipped with air intake and exhaust modules.

[0012] This invention provides an automatic methanol-water mixing device, comprising a mixing unit, a water supply line, a methanol supply line, and a mixed water storage unit. The mixing unit includes a liquid tank, a first level gauge, a second level gauge, a first mixing pipe, a second mixing pipe, a mixing solenoid valve, and a mixing pump. A partition is provided inside the liquid tank, dividing it into a water tank and a methanol tank. The first level gauge is located on the upper inner side of the water tank, and the second level gauge is located on the upper inner side of the methanol tank, with the first and second level gauges at the same height. The first mixing pipe is inserted inside the water tank, and the second mixing pipe is inserted inside the methanol tank. The first and second mixing pipes are connected via the mixing pump. The water tank and the methanol tank are connected via the mixing solenoid valve. The water tank is connected to the water supply line, and the methanol tank is connected to both the methanol supply line and the mixed water storage unit. In this way, the water supply path replenishes water to the water tank, with the first level gauge limiting the water level capacity. The methanol supply path replenishes methanol to the methanol tank, with the second level gauge limiting the methanol level capacity. Since the first and second level gauges are set at the same height, the ratio of water to methanol is constant. At this point, the mixing solenoid valve and mixing pump are opened to ensure that the water and methanol are fully mixed. After mixing, the methanol-water mixture is discharged to the mixed water storage unit. The mixing pump and mixing solenoid valve are then turned off, and water and methanol are replenished again. The quantitative mixing of water and methanol results in a more accurate methanol-water ratio, and the problem of residual negative pressure in both the methanol tank and the water tank can be effectively solved. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the principle of an automatic methanol-water mixing device according to the present invention.

[0014] The attached diagram lists the components represented by each number as follows:

[0015] 1. Water tank; 2. Methanol tank; 3. First level gauge; 4. Second level gauge; 5. First mixing pipe; 6. Second mixing pipe; 7. Mixing solenoid valve; 8. Mixing pump; 9. Recovered water tank; 10. First replenishment pump; 11. First check valve; 12. Deionizer; 13. Water inlet; 14. Overflow outlet; 15. Water recovery condenser; 16. Air-cooled condenser; 17. Circulation pump; 18. Water vapor separator; 19. Second check valve; 20. Second replenishment pump; 21. Methanol replenishment tank; 22. Third replenishment pump; 23. Methanol water tank; 24. Fourth replenishment pump; 25. Liquid detection module; 26. Suction and exhaust module. Detailed Implementation

[0016] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0017] In the description of this invention, it should be understood that the terms "upper", "lower", "center", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] like Figure 1As shown, the present invention provides an automatic methanol-water mixing device, including a mixing unit, a water supply line, a methanol supply line, and a mixed water storage unit. The mixing unit includes a liquid tank, a first level gauge 3, a second level gauge 4, a first mixing pipe 5, a second mixing pipe 6, a mixing solenoid valve 7, and a mixing pump 8. A partition is provided inside the liquid tank, which proportionally divides the liquid tank into a water tank 1 and a methanol tank 2. The first level gauge 3 is located on the upper inner side of the water tank 1, and the second level gauge 4 is located on the upper inner side of the methanol tank 2. The first level gauge 3 and the second level gauge 4 are at the same height. The first mixing pipe 5 is inserted inside the water tank 1, and the second mixing pipe 6 is inserted inside the methanol tank 2. The first mixing pipe 5 and the second mixing pipe 6 are connected through the mixing pump 8. The water tank 1 and the methanol tank 2 are connected through the mixing solenoid valve 7. The water tank 1 is connected to the water supply line, and the methanol tank 2 is connected to both the methanol supply line and the mixed water storage unit. In this way, the water supply path replenishes water to water tank 1, and the first level gauge 3 limits the water level capacity. The methanol supply path replenishes methanol to methanol tank 2, and the second level gauge 4 limits the methanol capacity. Since the first level gauge 3 and the second level gauge 4 are set at the same height, the ratio of water to methanol is constant. At this time, the mixing solenoid valve 7 and the mixing pump 8 are opened to allow the water and methanol to mix thoroughly. After mixing, the methanol-water mixture is discharged to the mixed water storage unit. The mixing pump 8 and the mixing solenoid valve 7 are then closed, and water and methanol are replenished again. The quantitative mixing of water and methanol results in a more accurate methanol-water ratio, and the problem of residual negative pressure in both methanol tank 2 and water tank 1 can be effectively solved.

[0020] The automatic methanol-water mixing device of the present invention, such as Figure 1 As shown, based on the previously described technical solution, the water supply circuit can also be configured as follows: The water supply circuit includes a recycling water tank 9, a first supply pump 10, a first check valve 11, and a deionizer 12 connected sequentially by pipelines. The deionizer 12 is connected to the water tank 1. Used water is collected by the recycling water tank 9 and then pumped by the first supply pump 10 to the deionizer 12 for purification, ensuring water recycling. Simultaneously, the first check valve 11 prevents backflow, ensuring unidirectional water flow and improving mixing efficiency. The deionizer 12 effectively removes ionic impurities from the water, ensuring the quality of the water added to methanol and thus the quality of the methanol-water mixture. By recycling water from the water tank 1, the consumption of fresh water resources is reduced, achieving water conservation. The entire water supply circuit automates the water supply process, reducing manual operation and improving work efficiency. The use of the deionizer 12 reduces environmental pollution caused by water quality issues, and the recycling water tank 9 also reduces wastewater discharge.

[0021] The automatic methanol-water mixing device of the present invention, such as Figure 1As shown, based on the technical solution described above, the recovery water tank 9 can also be equipped with a water inlet 13 and an overflow outlet 14. The recovery water tank 9 is specifically designed and equipped with a water inlet 13 and an overflow outlet 14. The water inlet 13 is used to replenish fresh water into the water tank 1, ensuring that the water level in the water tank 1 is always maintained at a certain level to meet usage requirements. The overflow outlet 14 serves a safety protection function; when the water level in the water tank 1 is too high, the overflow outlet 14 can drain excess water, preventing the water tank 1 from overflowing due to overfilling, thereby avoiding potential water loss or other related problems. The design of these two outlets not only ensures the normal operation of the water tank 1 but also improves the stability and safety of the system.

[0022] The automatic methanol-water mixing device of the present invention, such as Figure 1 As shown, based on the technical solution described above, it can also include a water recycling unit, which is connected to the recycling tank 19. Through this design, the system can effectively collect and reuse wastewater, thereby reducing overall water consumption and improving resource efficiency. The integration of the water recycling unit ensures that water generated during various operations can be filtered, purified, and stored in the recycling tank 9 for subsequent use. This not only reduces the demand for fresh water but also reduces the environmental impact of wastewater discharge, achieving the goal of sustainable development.

[0023] The automatic methanol-water mixing device of the present invention, such as Figure 1 As shown, based on the previously described technical solution, the water recovery unit can also be configured as follows: The water recovery unit includes a water recovery condenser 15, an air-cooled condenser 16, a circulating pump 17, and a water vapor separator 18. The recovery water tank 9, circulating pump 17, water recovery condenser 15, and air-cooled condenser 16 form a circulating water path. The water vapor separator 18 is connected to both the water recovery condenser 15 and the recovery water tank 9. The water recovery condenser 15 is used to connect the reforming high-temperature tail gas and the fuel cell cathode tail gas. In this way, the water recovery unit achieves a highly efficient and energy-saving water recovery process through the coordinated operation of its components. The water recovery condenser 15, as the core component, is responsible for condensing water vapor in the reforming high-temperature tail gas and the fuel cell cathode tail gas into liquid water. The air-cooled condenser 16 further improves the condensation efficiency by lowering the temperature through air cooling, promoting water vapor condensation. The circulating pump 17 ensures the water circulates within the system, maintaining the continuity and stability of the water path. The water vapor separator 18 is responsible for separating water and gas, ensuring that the recovered water is pure and free of impurities. The entire system forms a closed-loop water circuit, which not only improves water recycling efficiency and reduces water waste, but also reduces overall energy consumption by recycling water vapor in the exhaust gas, achieving a dual improvement in environmental protection and economic benefits.

[0024] The automatic methanol-water mixing device of the present invention, such as Figure 1As shown, based on the technical solution described above, the methanol supply route can also be: the methanol supply route includes a second check valve 19, a second supply pump 20, a methanol supply tank 21 and a third supply pump 22 connected in sequence by pipelines, and the second check valve 19 is connected to the methanol tank 2.

[0025] The methanol supply circuit, connected sequentially by a second check valve 19, a second supply pump 20, a methanol supply tank 21, and a third supply pump 22, ensures efficient and safe methanol supply. The second check valve 19 prevents backflow of methanol during supply, ensuring the correct supply direction and avoiding potential damage from methanol flowing back into other systems. The second supply pump 20 makes methanol delivery more stable and controllable, improving supply efficiency. The methanol supply tank 21, as a storage medium, ensures a sufficient supply of methanol. Its direct connection to the second check valve 19 ensures timely replenishment of methanol, maintaining continuous system operation. When methanol levels are insufficient, the third supply pump 22 can connect to an external methanol resource to replenish the methanol supply tank 21. Overall, this supply circuit design not only improves the efficiency and safety of methanol supply but also ensures the stable operation of the entire system.

[0026] The automatic methanol-water mixing device of the present invention, such as Figure 1 As shown, based on the previously described technical solution, the mixed water storage unit can also be configured as follows: the mixed water storage unit includes a methanol tank 23, a fourth supply pump 24, and a liquid detection module 25 connected in sequence, with the liquid detection module 25 connected to the methanol tank 2. In this way, the working principle of the mixed water storage unit is achieved through the sequentially connected methanol tank 23, fourth supply pump 24, and liquid detection module 25. The fourth supply pump 24 is responsible for delivering the mixed water to the methanol tank 23, and the liquid detection module 25, connected to the methanol tank 23, can monitor the quality of the mixed water in real time, ensuring the storage quality of the mixed water.

[0027] The automatic methanol-water mixing device of the present invention, such as Figure 1 As shown, based on the technical solution described above, it can also be further configured such that both the water tank 1 and the methanol tank 2 are equipped with suction and exhaust modules 26. This design effectively maintains the pressure balance inside the tanks, preventing excessive pressure differences due to temperature changes or liquid consumption, thus avoiding tank deformation or damage. The suction and exhaust modules 26 can automatically draw in or expel gas according to changes in internal pressure, ensuring stable internal and external pressure. Furthermore, this structure helps reduce the intrusion of external contaminants, ensuring the purity of the liquid inside the water tank 1 and methanol tank 2, extending the service life of the equipment, and improving the system's safety performance to a certain extent.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic methanol-water mixing device, characterized in that: The system includes a mixing unit, a water supply line, a methanol supply line, and a mixed water storage unit. The mixing unit includes a liquid tank, a first level gauge (3), a second level gauge (4), a first mixing pipe (5), a second mixing pipe (6), a mixing solenoid valve (7), and a mixing pump (8). The liquid tank is equipped with a partition that divides the liquid tank into a water tank (1) and a methanol tank (2). The first level gauge (3) is located on the upper inner side of the water tank (1), and the second level gauge (4) is located on the upper inner side of the methanol tank (2). The first level gauge (3) and the second level gauge (4) are set at the same height. The first mixing pipe (5) is inserted inside the water tank (1), and the second mixing pipe (6) is inserted inside the methanol tank (2). The first mixing pipe (5) and the second mixing pipe (6) are connected through the mixing pump (8). The water tank (1) and the methanol tank (2) are connected through the mixing solenoid valve (7). The water tank (1) is connected to the water supply line. The methanol tank (2) is connected to the methanol supply line and the mixed water storage unit, respectively.

2. The automatic methanol-water mixing device according to claim 1, characterized in that: The water supply path includes a recovery water tank (9), a first supply pump (10), a first check valve (11), and a deionizer (12) connected in sequence by pipelines. The deionizer (12) is connected to the water tank (1).

3. The automatic methanol-water mixing device according to claim 2, characterized in that: The water recovery tank (9) is equipped with a water inlet (13) and an overflow outlet (14).

4. The automatic methanol-water mixing device according to claim 2, characterized in that: It also includes a water recycling unit, which is connected to the recycling water tank (9).

5. The automatic methanol-water mixing device according to claim 2, characterized in that: The water recovery unit includes a water recovery condenser (15), an air-cooled condenser (16), a circulation pump (17), and a water vapor separator (18). The recovery water tank (9), the circulation pump (17), the water recovery condenser (15), and the air-cooled condenser (16) form a circulating water circuit. The water vapor separator (18) is connected to the water recovery condenser (15) and the recovery water tank (9) respectively. The water recovery condenser (15) is used to connect the reformed high-temperature tail gas and the fuel cell cathode tail gas.

6. The automatic methanol-water mixing device according to claim 1, characterized in that: The methanol supply route includes a second check valve (19), a second supply pump (20), a methanol supply tank (21), and a third supply pump (22) connected in sequence via pipelines. The second check valve (19) is connected to the methanol tank (2).

7. The automatic methanol-water mixing device according to claim 1, characterized in that: The mixed water storage unit includes a methanol tank (23), a fourth replenishment pump (24), and a liquid detection module (25) connected in sequence. The liquid detection module (25) is connected to the methanol tank (2).

8. The automatic methanol-water mixing device according to claim 1, characterized in that: Both the water tank (1) and the methanol tank (2) are equipped with air intake and exhaust modules (26).

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