A large pressure vessel

Abstract

This utility model discloses a large pressure vessel, belonging to the field of pressure vessel technology, including a water treatment pressure vessel. The upper end of the water treatment pressure vessel is provided with a drain outlet, and a filter element is installed inside the drain outlet. A pressure-reducing mechanism is located below the filter element inside the drain outlet. The pressure-reducing mechanism includes a spiral water-passing pipe, which is disposed within the inner cavity of the drain outlet. An upper water collection box is located above the spiral water-passing pipe. Through the pressure-reducing mechanism, this utility model achieves two effects: firstly, the spiral water-passing pipe guides the water flow in a circular motion, utilizing friction and deflection to consume some kinetic energy, thus extending the water inlet path and reducing the flow velocity; secondly, the water distributor disperses the concentrated water flow into multiple low-pressure water flows, avoiding unilateral high-pressure impact. The combination of these two aspects significantly reduces the pressure of the water flow on the filter element, preventing deformation of the filter element due to high-pressure impact, ensuring the stable filtration function of the filter element, and extending its service life.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel technology, specifically a large pressure vessel. Background Technology

[0002] Water treatment refers to the process of removing harmful substances from water that are unnecessary for production and daily life through a series of water treatment equipment using physical, chemical, and biological methods. This includes sedimentation, filtration, coagulation, flocculation, and water quality conditioning such as corrosion inhibition and scale inhibition for specific applications. Wastewater treatment equipment is a special production tool that purifies various pollutants and discharges them into water bodies to meet the needs of domestic and industrial water use. Water treatment equipment can be mainly classified into several categories: wastewater treatment equipment, raw water treatment equipment, water purification equipment, filtration equipment, and ultrapure water equipment. According to the type of treatment, it can be divided into wastewater pretreatment equipment, wastewater biological treatment equipment, and sludge treatment equipment, each with different equipment and a certain degree of specialization. Large pressure vessels, as the core equipment of a water treatment system, undertake key functions such as water purification and pressure control. Water treatment pressure vessels use built-in filter elements to filter the water flow, removing impurities, particulate matter, and other pollutants to ensure that the effluent water quality meets standards. These types of equipment typically need to operate under high pressure to meet the demands of high-flow-rate, high-efficiency water treatment. Therefore, the stability of the water flow inside the equipment and the durability of the filter components directly affect the overall system's operating efficiency and maintenance costs. In existing technologies, the drain outlet design of water treatment pressure vessels mostly adopts a straight-through structure, where water flows directly out of the drain outlet after passing through the filter element. On the one hand, due to the high water pressure inside the pressure vessel, the water flow impacts the filter element with significant kinetic energy during discharge, resulting in a concentrated impact. Under long-term high-pressure impact, the filter element is prone to deformation and damage, which not only reduces filtration efficiency but also requires frequent replacement, increasing equipment maintenance costs. On the other hand, under the combined effects of water flow impact and equipment vibration, the filter element is prone to shaking or shifting, leading to gaps or overlaps in the filtration area. Some water is discharged directly without sufficient filtration, affecting the quality of the effluent. Thus, unstable filter element positioning affects filtration stability. Therefore, a large pressure vessel is needed to solve the problems existing in the current technology. Utility Model Content

[0003] The purpose of this invention is to provide a large pressure vessel to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a large pressure vessel, including a water treatment pressure vessel, wherein a drain outlet is provided at the upper end of the water treatment pressure vessel, a filter element is provided inside the drain outlet, a pressure reducing mechanism is provided below the filter element inside the drain outlet, the pressure reducing mechanism includes a spiral water pipe, the spiral water pipe is provided in the inner cavity of the drain outlet, an upper water collection box is provided above the spiral water pipe, a lower water collection box is provided below the spiral water pipe, a water distributor is fixed at the upper end of the upper water collection box, and a positioning groove is provided on the lower end plate of the filter element.

[0005] Preferably, both ends of the spiral water pipe are fixed with water-passing shells, and the two water-passing shells are respectively fixed on the opposite end faces of the upper water collection box and the lower water collection box.

[0006] Preferably, the upper water collection box, the lower water collection box, the spiral water pipe, and the water-passing shell are connected, and the interiors of the upper water collection box and the lower water collection box are hollow.

[0007] Preferably, the upper end face of the upper water collection box is provided with a connecting hole, and the upper end of the water distributor is provided with a water outlet, and the water outlet of the water distributor is connected to the connecting hole.

[0008] Preferably, the upper water collection box is fixed to the inner wall of the drain outlet, the lower water collection box is also fixed to the inner wall of the drain outlet, and a positioning plug is spirally connected to the upper end of the drain outlet.

[0009] Preferably, the bottom of the water treatment pressure vessel is fixed with a water inlet, and the upper port of the drain outlet is provided with a positioning plug spirally connected, and the lower part of the positioning plug is provided with spiral patterns.

[0010] This utility model provides a large pressure vessel, which has the following advantages compared with the prior art: Through the designed pressure-reducing mechanism, on the one hand, the spiral water pipe guides the water flow in a circular motion, using friction and deflection to consume some kinetic energy, thus extending the water inlet path and reducing the flow velocity; on the other hand, the water distributor disperses the concentrated water flow into multiple low-pressure water flows, avoiding unilateral high-pressure impact. The combination of these two aspects significantly reduces the pressure of the water flow on the filter element, preventing the filter element from deforming due to high-pressure impact, ensuring the stable filtration function of the filter element, and extending its service life. With the set water distribution nozzle and filter element, the filter element is aligned and fitted onto the water distribution nozzle through the positioning groove of the base plate. This installation method can accurately position the filter element, effectively preventing the filter element from shaking or shifting under the action of water flow, improving the firmness of the filter element installation, and providing a reliable structural foundation for stable filtration. Attached Figure Description

[0011] Figure 1This is a three-dimensional view of the overall structure of this utility model; Figure 2 This is a three-dimensional cross-sectional view of the drainage outlet structure of this utility model; Figure 3 This is a perspective view of the filter element structure of this utility model; Figure 4 This is a three-dimensional view of the spiral water pipe structure of this utility model.

[0012] In the diagram: 1. Water treatment pressure vessel; 2. Inlet; 3. Outlet; 4. Positioning plug; 5. Spiral pattern; 6. Filter element; 7. Pressure reducing mechanism; 8. Upper water collection box; 9. Lower water collection box; 10. Spiral water pipe; 11. Water distributor; 12. Water distributor; 13. Connecting hole; 14. Positioning groove; 15. Water passage shell. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-4 This utility model provides a large pressure vessel, including a water treatment pressure vessel 1. The upper end of the water treatment pressure vessel 1 is provided with a drain outlet 3. A filter element 6 is provided inside the drain outlet 3. A pressure reducing mechanism 7 is provided inside the drain outlet 3 below the filter element 6. The pressure reducing mechanism 7 includes a spiral water pipe 10, which is located in the inner cavity of the drain outlet 3. An upper water collection box 8 is provided above the spiral water pipe 10, and a lower water collection box 9 is provided below the spiral water pipe 10. A water distributor 11 is fixed at the upper end of the upper water collection box 8. A positioning groove 14 is provided on the lower end plate of the filter element 6. When water flows through the pressure reducing mechanism 7, the treated water enters from the lower port of the lower water collection box 9, passes through the spiral water pipe 10, and is introduced into the water distributor 11 through the connecting hole 13 of the upper water collection box 8. Then, the water distributor 11 is injected into the area where the filter element 6 is located. Because the water distribution nozzles 11 are evenly arranged, water can enter the filter element 6 area through multiple dispersed water distribution ports 12. This design disperses the concentrated water pressure into multiple low-pressure water flows, so that the water flow can evenly wrap around the surface of the filter element 6, avoiding the situation of high pressure impact on one side. This effectively prevents the filter element 6 from deforming due to high pressure water impact during use and ensures the stability of filtration.

[0015] Further as Figure 1As shown, it is worth noting that the bottom of the water treatment pressure vessel 1 is fixed with an inlet 2, and the lower part of the positioning plug 4 is provided with a spiral pattern 5. Before the filtration operation, water must be introduced through the inlet 2 by a water pump. The water will pass through the pressure reducing mechanism 7 and the filter element 6 area in sequence, and finally be discharged from the drain outlet 3 to complete the entire filtration process.

[0016] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that both ends of the spiral water pipe 10 are fixed with water-passing shells 15. The two water-passing shells 15 are respectively fixed to the opposite end faces of the upper water collection box 8 and the lower water collection box 9. The upper water collection box 8, the lower water collection box 9, the spiral water pipe 10, and the water-passing shells 15 are connected. The interiors of the upper water collection box 8 and the lower water collection box 9 are hollow. A connecting hole 13 is opened on the upper end face of the upper water collection box 8. A water-dividing port 12 is opened through the upper end of the water-dividing nozzle 11, and the water-dividing port 12 of the water-dividing nozzle 11 is connected to the connecting hole 13. During the water supply process of the filter element 6, the water flow changes direction under the guidance of the spiral water pipe 10 and performs a circular motion before reaching the filter element 6. Through the friction between the water flows and the change of direction, some kinetic energy can be consumed, reducing the contact pressure between the water flow and the filter element 6. Meanwhile, the spiral water pipe 10 extends the water inlet path and reduces the water flow speed. Combined with the water distribution nozzle 11 that can disperse water injection, the two work together to effectively reduce the water pressure in the filtration process, reduce the problem of filter element deformation, and thus ensure the filtration effect and water throughput efficiency.

[0017] Further as Figure 4 As shown, it is worth noting that the upper water collection box 8 is fixed on the inner wall of the drain outlet 3, and the lower water collection box 9 is also fixed on the inner wall of the drain outlet 3. The bottom of the water treatment pressure vessel 1 is fixed with an inlet 2, and the upper port of the drain outlet 3 is provided with a positioning plug 4 in a spiral connection. The lower part of the positioning plug 4 is provided with a spiral pattern 5. This installation method significantly improves the stability of the filter element 6 installation.

[0018] This solution has the following working process: Before use, water is pumped through the inlet 2, and the water flows through the pressure reducing mechanism 7 and then through the filter element 6 area, and finally is discharged through the outlet 3 to complete the filtration operation. When the water flows through the pressure reducing mechanism 7, the treated water enters from the lower port of the lower water collection box 9, passes through the spiral water pipe 10, and is introduced into the water distribution nozzle 11 through the connecting hole 13 of the upper water collection box 8. Finally, it is injected into the area where the filter element 6 is located through the water distribution nozzle 11. The water flow is distributed through multiple dispersed water distribution ports 12 into the area of ​​the filter element 6, which disperses the concentrated water pressure into multiple low-pressure water flows. This allows the water flow to evenly coat the surface of the filter element 6, avoiding high pressure impact on one side. This prevents the filter element 6 from being deformed by high pressure water impact during use and affecting stable filtration. In addition, the filter element 6 is aligned and fitted onto the water distribution nozzle 11 through the positioning groove 14 of the base plate, which can improve the stability of the filter element 6 installation. During the water supply process of filter element 6, the water flow is guided by the spiral water pipe 10, allowing the water flow to make a circular motion before reaching filter element 6. Through friction and turning, some kinetic energy is consumed, reducing the contact pressure, thereby extending the water inlet path and reducing the flow rate. The spiral water pipe 10, together with the water distribution nozzle 11 for dispersed water injection, can effectively reduce the water pressure in the filtration process, reduce the trouble of filter element deformation, and thus ensure the filtration effect and water passing efficiency.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Although embodiments of this utility model have been shown and described, this does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model. Regarding the embodiments of this utility model, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A large pressure vessel, comprising a water treatment pressure vessel (1), characterized in that: The water treatment pressure vessel (1) is provided with a drain outlet (3) at its upper end. A filter element (6) is provided inside the drain outlet (3). A pressure reducing mechanism (7) is provided inside the drain outlet (3) below the filter element (6). The pressure reducing mechanism (7) includes a spiral water pipe (10). The spiral water pipe (10) is located in the inner cavity of the drain outlet (3). An upper water collection box (8) is provided above the spiral water pipe (10). A lower water collection box (9) is provided below the spiral water pipe (10). A water distribution nozzle (11) is fixed at the upper end of the upper water collection box (8). A positioning groove (14) is provided on the lower end plate of the filter element (6).

2. A large pressure vessel according to claim 1, characterized in that: Both ends of the spiral water pipe (10) are fixed with water-passing shells (15), and the two water-passing shells (15) are respectively fixed on the opposite end faces of the upper water collection box (8) and the lower water collection box (9).

3. A large pressure vessel according to claim 2, characterized in that: The upper water collection box (8), the lower water collection box (9), the spiral water pipe (10) and the water shell (15) are connected, and the interior of the upper water collection box (8) and the lower water collection box (9) are hollow.

4. A large pressure vessel according to claim 3, characterized in that: The upper end face of the upper water collection box (8) is provided with a connecting hole (13), and the upper end of the water divider (11) is provided with a water divider outlet (12). The water divider outlet (12) of the water divider (11) is connected to the connecting hole (13).

5. A large pressure vessel according to claim 4, characterized in that: The upper water collection box (8) is fixed on the inner wall of the drain outlet (3), and the lower water collection box (9) is also fixed on the inner wall of the drain outlet (3). The upper end of the drain outlet (3) is spirally connected with a positioning plug (4).

6. A large pressure vessel according to claim 1, characterized in that: The bottom of the water treatment pressure vessel (1) is fixed with a water inlet (2), and the upper port of the drain outlet (3) is provided with a positioning plug (4) spirally connected, and the lower part of the positioning plug (4) is provided with a spiral pattern (5).

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