Filter with efficient circulating function

Abstract

The utility model discloses a filter with an efficient circulation function, which relates to the technical field of hydrogen peroxide production and comprises a base plate, a nitrogen tank is arranged on the left side of the top end of the base plate, and the top end of the nitrogen tank is respectively communicated with a first filter and a second filter through a main inlet pipe and a first branch pipe. The outer surfaces of the top ends of the first filter and the second filter are communicated with the outlet end of a circulating pump through a main outlet pipe and a second branch pipe; the inlet end of the circulating pump is communicated with a solvent tank; through the switching circulation design of the two sets of filters, the problem that a large amount of working liquid is left in replacement of old filter elements is solved, economic losses caused by loss of the working liquid are avoided through the innovation, the utilization rate of the old filter elements after cleaning is greatly increased, production can be conducted more efficiently, more economic benefits are created for enterprises, and secondly, the production cost is reduced. By applying the innovative method of aromatic hydrocarbon circulation, the residual working solution in the filter element and the glue in the new filter element can be effectively removed.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen peroxide production technology, specifically to a filter with a high-efficiency circulation function. Background Technology

[0002] In the complex process of hydrogen peroxide production, filters play an irreplaceable and crucial role. Like "guardians" on the production line, they can accurately and efficiently filter out various impurities mixed in the working fluid, laying a solid foundation for the continuous and stable operation of production. They are a key link in ensuring that product quality reaches high standards. However, in the current actual production process, the replacement of filter elements and the handling of new filter elements have exposed many difficult and thorny problems.

[0003] Traditional filter cartridge replacement methods have significant drawbacks. When a filter cartridge is cut out, a large amount of working fluid often remains inside the discarded cartridge. This residual working fluid not only poses a potential environmental pollution risk and increases the environmental pressure on enterprises, but also leads to an unnecessary increase in production costs, as the loss of working fluid means a waste of resources and an increase in economic costs. Furthermore, when we reuse the filter cartridge to achieve energy conservation and consumption reduction goals, we face new challenges. During ultrasonic cleaning of the filter cartridge, the excessive residual working fluid inside greatly hinders the smooth progress of the cleaning work, reducing the cleaning effect and further aggravating the loss of working fluid. At the same time, the wastewater generated during cleaning contains a large amount of working fluid, which undoubtedly increases the difficulty and cost of wastewater treatment. More importantly, after replacing the filter cartridge, the colloids contained in the new filter cartridge, if not treated in a timely and effective manner, will have a serious negative impact on subsequent production processes. These impurities in the new filter cartridge will interfere with the original composition of the working fluid, thereby affecting the reaction effect in the hydrogen peroxide production process, leading to a significant reduction in production efficiency, system fluctuations, and difficulty in meeting expected product quality standards, seriously affecting the enterprise's market competitiveness. Utility Model Content

[0004] To address the aforementioned technical problems, this invention provides a filter with a high-efficiency circulation function. This solution overcomes the significant drawbacks of traditional filter cartridge replacement methods described in the background section. When the filter cartridge is cut out, a large amount of working fluid often remains inside the discarded cartridge. This residual working fluid not only poses a potential environmental pollution risk and increases the environmental burden on enterprises, but also leads to unnecessary increases in production costs, as the loss of working fluid means wasted resources and increased economic costs. Furthermore, when reusing the filter cartridge to achieve energy conservation and consumption reduction, a new dilemma arises: during ultrasonic cleaning of the filter cartridge, excessive residual working fluid inside... This significantly hinders the smooth progress of the cleaning work, reducing the cleaning effect and further aggravating the loss of working fluid. At the same time, the wastewater generated from cleaning contains a large amount of working fluid, which undoubtedly increases the difficulty and cost of wastewater treatment. More importantly, if the colloids contained in the new filter element are not treated in a timely and effective manner after replacement, they will have a serious negative impact on the subsequent production process. These impurities in the new filter element will interfere with the original composition of the working fluid, thereby affecting the reaction effect in the hydrogen peroxide production process, resulting in a significant reduction in production efficiency, system fluctuations, and difficulty in meeting the expected product quality standards, which seriously affects the company's market competitiveness.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A filter with a high-efficiency circulation function includes a base plate. A nitrogen tank is disposed on the top left side of the base plate. The top of the nitrogen tank is connected to a first filter and a second filter through a main inlet pipe and a first branch pipe, respectively. The outer surfaces of the tops of the first filter and the second filter are connected to the outlet end of a circulation pump through a main outlet pipe and a second branch pipe. The inlet end of the circulation pump is connected to a solvent tank. The solvent tank is connected to a second connecting pipe through a circulation pipe. The two ends of the second connecting pipe are connected to the bottom ends of the first filter and the second filter, respectively. The bottom ends of the first filter and the second filter are connected to a waste liquid collection tank through a drain pipe.

[0007] Preferably, the first branch pipe is connected to the main outlet pipe through a first connecting pipe, and a differential pressure gauge is provided on the outer surface of the first connecting pipe. The second branch pipe is connected to the main inlet pipe through the same first connecting pipe and a differential pressure gauge provided on its surface.

[0008] Preferably, the surface of the main inlet pipe is provided with two sets of remote monitoring flow meters, and the surfaces of the main inlet pipe and the first branch pipe are respectively provided with main inlet valves.

[0009] Preferably, the main outlet pipe and the second branch pipe are respectively provided with main outlet valves.

[0010] Preferably, the outer surface of the second connecting pipe is provided with two sets of control valves.

[0011] Preferably, the outer surfaces of the two sets of sewage pipes are respectively provided with sewage valves.

[0012] Preferably, the solvent tank is a coil-heated tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] First, the dual-filter switching and circulation design solves the problem of excessive residual working fluid during old filter replacement. This innovation not only avoids economic losses due to working fluid depletion but also significantly improves the utilization rate of cleaned old filter elements, enabling more efficient production and generating greater economic benefits for the company. Second, the innovative aromatic hydrocarbon circulation method effectively removes residual working fluid from the filter elements and colloids from the new filter elements, eliminating the possibility of these impurities entering the production process at the source. This ensures the purity of the working fluid, making the chemical reactions in the hydrogen peroxide production process more stable and efficient, thereby improving the production efficiency and product quality of hydrogen peroxide, significantly reducing the product defect rate, and enhancing the company's market competitiveness. Finally, by reducing production downtime, the additional costs incurred due to filter element reuse and cleaning, such as working fluid depletion, wastewater reagent consumption, and energy waste, are avoided. At the same time, system fluctuations are reduced, mitigating many problems caused by system fluctuations. These multiple aspects comprehensively reduce the company's production costs, improve its economic benefits and market competitiveness, and lay a solid foundation for the company's sustainable development. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective.

[0017] The numbers on the map are:

[0018] 1. Substrate; 2. Nitrogen tank; 3. Main inlet pipe; 4. Remote monitoring flow meter; 5. First filter; 6. First branch pipe; 7. Second filter; 8. Main inlet valve; 9. First connecting pipe; 10. Differential pressure gauge; 11. Main outlet pipe; 12. Second branch pipe; 13. Outlet valve; 14. Circulation pump; 15. Solvent tank; 16. Circulation pipe; 17. Second connecting pipe; 18. Control valve; 19. Drain pipe; 20. Drain valve; 21. Waste liquid collection tank. Detailed Implementation

[0019] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0020] Reference Figure 1-2 As shown, a filter with high-efficiency circulation function includes a base plate 1. A nitrogen tank 2 is disposed on the top left side of the base plate 1. The top of the nitrogen tank 2 is connected to a first filter 5 and a second filter 7 through a main inlet pipe 3 and a first branch pipe 6, respectively. Two sets of remote monitoring flow meters 4 are disposed on the surface of the main inlet pipe 3. Main inlet valves 8 are disposed on the surface of the main inlet pipe 3 and the first branch pipe 6, respectively.

[0021] In this scheme, by connecting the nitrogen tank 2 to the main inlet pipe 3 and the first branch pipe 6, the effect of quickly injecting nitrogen for pressing and purging is achieved when switching filters, ensuring that the working fluid residue is completely removed. Secondly, two sets of remote monitoring flow meters 4 are set up to achieve precise control of the working fluid distribution by monitoring the flow change of the main inlet pipe 3 in real time.

[0022] Reference Figure 1-2 As shown, the top outer surfaces of the first filter 5 and the second filter 7 are connected to the outlet end of the circulating pump 14 through the main outlet pipe 11 and the second branch pipe 12. The first branch pipe 6 is connected to the main outlet pipe 11 through the first connecting pipe 9. The surfaces of the main outlet pipe 11 and the second branch pipe 12 are respectively provided with main outlet valves 13.

[0023] In this scheme, the connection between the main outlet pipe 11 and the second branch pipe 12 and the circulation pump 14 achieves efficient circulation of aromatics between the first filter 5 and the second filter 7. Secondly, a differential pressure gauge 10 is installed on the first connecting pipe 9 to monitor the pressure difference between the filter inlet and outlet, thereby enabling timely early warning of filter element blockage.

[0024] Reference Figure 1-2 As shown, a differential pressure gauge 10 is installed on the outer surface of the first connecting pipe 9. The second branch pipe 12 is connected to the main inlet pipe 3 via the same first connecting pipe 9 and the differential pressure gauge 10 installed on its surface. The inlet end of the circulation pump 14 is connected to the solvent tank 15, which is a coil heating tank. The solvent tank 15 is connected to the second connecting pipe 17 through the circulation pipe 16. Two sets of control valves 18 are installed on the outer surface of the second connecting pipe 17.

[0025] In this scheme, the solvent tank 15 adopts a coil heating design, which achieves the optimal dissolution effect of maintaining the temperature of aromatics at 45-50 degrees Celsius. Secondly, two sets of control valves 18 are set on the second connecting pipe 17. By adjusting the aromatic circulation path, the selective cleaning of different filters can be flexibly controlled.

[0026] Reference Figure 1-2 As shown, the two ends of the second connecting pipe 17 are connected to the bottom ends of the first filter 5 and the second filter 7, respectively. The bottom ends of the first filter 5 and the second filter 7 are connected to the waste liquid collection tank 21 through the drain pipe 19. The outer surfaces of the two sets of drain pipes 19 are respectively provided with drain valves 20.

[0027] In this solution, the connection between the sewage pipe 19 and the waste liquid collection tank 21 achieves the safe collection and centralized treatment of adhesive waste liquid. Secondly, a sewage valve 20 is installed on the sewage pipe 19 to control the sewage discharge process in stages, thereby achieving the safety and operability of waste liquid discharge.

[0028] The working principle of this invention is as follows: First, after coordinating with the central control system, the main inlet valve 8 of the first filter 5 is slowly closed, while closely monitoring the flow rate of the working fluid and the pressure difference of the second filter 7. The central control system uses remote monitoring data from the flow meter 4 and the differential pressure gauge 10 to make timely adjustments to maintain the continuity and stability of production. After the main inlet valve 8 of the first filter 5 is completely closed, its outlet valve 13 is quickly closed to prevent leakage and backflow of the working fluid. Subsequently, nitrogen is injected into the first filter 5 for pressurization, discharging as much of the residual working fluid as possible from the filter element. After nitrogen pressurization is completed, the aromatics circulation process is started. Based on the volume of the first filter 5 and the number and specifications of the filter elements, the amount of aromatics injected is accurately calculated. The aromatics are then drawn from the solvent tank 15 by the circulation pump 14 and transported to the first filter. The solvent tank 15 uses a coil heating design to ensure that the aromatics temperature is stably maintained at 45-50 degrees Celsius to improve the aromatics' efficiency. The solubility and flowability of hydrocarbons are utilized. Aromatics circulate within the first filter 5 at a set flow rate of 5 m³ / h, effectively dissolving the residual working fluid in the filter element. During the aromatic circulation process, the differential pressure change between the inlet and outlet of the first filter 5 is monitored by the differential pressure gauge 10 on the first connecting pipe 9 to assess the clogging status of the filter element. After the circulation continues for 1 hour, the circulation pump 14 is turned off, and the drain valve 20 at the bottom of the first filter 5 is opened to discharge the aromatics containing the working fluid into the waste liquid collection tank 21. The aromatic circulation operation can be repeated as needed to improve the treatment effect. Finally, nitrogen is used to purge the first filter 5 to remove residual aromatics. During the purging process, the pressure and flow rate of nitrogen are controlled to ensure the purging effect while avoiding damage to the filter element. After purging, the first filter 5 can be put into normal production use. Through this series of operations, the first filter 5 is efficiently cleaned, ensuring stable production and reliable product quality.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A filter with a high-efficiency circulation function, comprising a substrate (1), characterized in that, A nitrogen tank (2) is provided on the top left of the substrate (1). The top of the nitrogen tank (2) is connected to the first filter (5) and the second filter (7) through the main inlet pipe (3) and the first branch pipe (6), respectively. The outer surface of the top of the first filter (5) and the second filter (7) is connected to the outlet end of the circulation pump (14) through the main outlet pipe (11) and the second branch pipe (12). The inlet end of the circulation pump (14) is connected to the solvent tank (15). The solvent tank (15) is connected to the second connecting pipe (17) through the circulation pipe (16). The two ends of the second connecting pipe (17) are connected to the bottom ends of the first filter (5) and the second filter (7), respectively. The bottom ends of the first filter (5) and the second filter (7) are connected to the waste liquid collection tank (21) through the drain pipe (19).

2. The filter with high-efficiency circulation function according to claim 1, characterized in that: The first branch pipe (6) is connected to the main outlet pipe (11) through the first connecting pipe (9). A differential pressure gauge (10) is provided on the outer surface of the first connecting pipe (9). The second branch pipe (12) is connected to the main inlet pipe (3) through the same first connecting pipe (9) and a differential pressure gauge (10) provided on its surface.

3. A filter with high-efficiency circulation function according to claim 2, characterized in that: Two sets of remote monitoring flow meters (4) are provided on the surface of the main inlet pipe (3), and main inlet valves (8) are provided on the surface of the main inlet pipe (3) and the first branch pipe (6).

4. A filter with high-efficiency circulation function according to claim 2, characterized in that: The main outlet pipe (11) and the second branch pipe (12) are respectively provided with main outlet valves (13).

5. A filter with high-efficiency circulation function according to claim 2, characterized in that: Two sets of control valves (18) are provided on the outer surface of the second connecting pipe (17).

6. A filter with high-efficiency circulation function according to claim 1, characterized in that: The outer surfaces of the two sets of sewage pipes (19) are respectively provided with sewage valves (20).

7. A filter with high-efficiency circulation function according to claim 1, characterized in that: The solvent tank (15) is a coil heating tank.

Images