Gravity type full-automatic dissolved oxygen fine filter

By introducing a flow divider and a servo motor-driven rotating rod system into the fully automatic dissolved oxygen fine filter, the water flow is evenly dispersed and the contact time is extended, solving the problem of uneven water flow distribution and improving dissolved oxygen efficiency and water quality treatment effect.

CN224337254UActive Publication Date: 2026-06-09HENAN HAIRUNDE WATER TREATMENT TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN HAIRUNDE WATER TREATMENT TECH CO LTD
Filing Date
2025-05-29
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing fully automatic dissolved oxygen filter has a fixed structure, which leads to uneven water flow distribution, small contact area between air and water, insufficient oxygen dissolution, low dissolved oxygen efficiency, and affects water treatment effect.

Method used

The gravity-type fully automatic dissolved oxygen filter is designed, which uses two flow dividers to disperse the water flow multiple times. Combined with a servo motor-driven rotating rod system, it ensures that the water flow is evenly dispersed and extends the contact time with air, thereby increasing the dissolved oxygen efficiency.

Benefits of technology

It improves the uniformity and comprehensiveness of water flow, increases the contact area between water and air, enhances dissolved oxygen efficiency, increases dissolved oxygen content in water, and improves water treatment results.

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Abstract

The utility model relates to the technical field of dissolved oxygen fine filter, especially to gravity type full -automatic dissolved oxygen fine filter, including fine filter box, inlet pipe, still including filter component and fine filter component, the top of fine filter box is installed with filter component, and the left and right ends of fine filter box all are provided with fine filter component, and the front end of filter component is provided with inlet pipe, and filter component includes dissolved oxygen tank, and the intermediate position of the top of fine filter box is provided with dissolved oxygen tank, and inlet pipe is provided with the front end of dissolved oxygen tank, and the inside center symmetry of dissolved oxygen tank has the shunt plate no.
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Description

Technical Field

[0001] This utility model relates to the field of dissolved oxygen fine filter technology, and in particular to a gravity-type fully automatic dissolved oxygen fine filter. Background Technology

[0002] In fields such as aquaculture, sewage treatment, and landscape water purification, the requirements for water quality are increasing. Dissolved oxygen and filtration are key steps in improving water quality. Gravity-type fully automatic dissolved oxygen fine filter can use gravity to achieve automatic water circulation, dissolved oxygen, and filtration, and has the advantages of high efficiency, energy saving, and easy operation.

[0003] Existing fully automatic dissolved oxygen fine filters have a relatively fixed structure. The water to be filtered enters the fine filter directly. The water flow entering the fine filter cannot be evenly distributed and will concentrate in certain areas, resulting in uneven water flow distribution in the filtration and oxygenation areas. This prevents the water flow from fully performing its filtration and oxygenation functions. Furthermore, the water flow cannot be dispersed into a water curtain or film, resulting in a small contact area with the air. This prevents oxygen in the air from fully dissolving into the water, reducing the oxygenation efficiency. Consequently, the dissolved oxygen content in the water fails to meet the expected standards, affecting the water quality treatment effect.

[0004] Therefore, in view of the problem that the structure of the above-mentioned fully automatic dissolved oxygen filter is relatively fixed, and the water to be filtered enters the filter directly, which makes it impossible for oxygen in the air to fully dissolve into the water, reducing the dissolved oxygen efficiency and affecting the water quality treatment effect, a gravity-type fully automatic dissolved oxygen filter can be designed. Utility Model Content

[0005] To overcome the problem that the fully automatic dissolved oxygen filter has a relatively fixed structure and a small contact area with air, which prevents oxygen in the air from fully dissolving into the water, reducing the dissolved oxygen efficiency and affecting the water treatment effect.

[0006] The technical solution of this utility model is as follows: a gravity-type fully automatic dissolved oxygen fine filter, including a fine filter box and an inlet pipe; it also includes a filter assembly and a fine filter component. The filter assembly is installed at the top of the fine filter box, and fine filter components are provided at both the left and right ends of the fine filter box. An inlet pipe is provided at the front end of the filter assembly. The filter assembly includes a dissolved oxygen box, which is located at the middle position of the top of the fine filter box, and the inlet pipe is located at the front end of the dissolved oxygen box. A first diverter plate with through holes is symmetrically arranged at the center of the interior of the dissolved oxygen box. A second diverter plate with through holes is arranged below the first diverter plate, and the second diverter plate is rotatably connected to the interior of the dissolved oxygen box.

[0007] Preferably, the servo motor operates, driving the rotating rod to rotate. The first and second diversion plates connected to the rotating rod also rotate synchronously, thereby diverting the raw water entering the dissolved oxygen tank. The inner diameter of the through holes on the first and second diversion plates decreases sequentially. When the raw water first passes through the first diversion plate, the larger water flow is initially dispersed. Then, the water flow passes through the second diversion plate, where the inner diameter of the through holes is smaller, and the water flow is further dispersed, thus achieving multiple diversions and dispersions.

[0008] Preferably, the internal transmission connection of the first and second splitter plates is a rotating rod, and the outer bearing of the rotating rod is connected to a mounting bearing, which is located in the middle position inside the first and second splitter plates.

[0009] Preferably, a servo motor is installed at the middle position of the top of the dissolved oxygen tank, and the output end of the servo motor is connected to the rotating rod, with a fixing plate fixedly connected to the bottom end of the rotating rod.

[0010] Preferably, a filter plate is symmetrically arranged inside the dissolved oxygen chamber, and the filter plate is located at the lower end of the fixed plate.

[0011] Preferably, filter plate 2 is provided at the lower end of filter plate 1, and filter plate 2 is located inside the dissolved oxygen tank at the bottom.

[0012] Preferably, the fine filtration assembly includes a clean water tank, which is installed opposite to the left and right ends of the fine filtration box, and the clean water tank and the fine filtration box are connected by a connecting pipe. An observation window is installed on the surface of the clean water tank facing away from the fine filtration box.

[0013] Preferably, a backwash pipe is installed on the opposite side of the clean water tank, and water seal tanks are installed at both ends of the fine filter tank, with the water seal tanks located between the clean water tanks.

[0014] Preferably, a siphon tube is connected between the clear water tank and the water seal tank, and a rupture tube is provided on the right side between the dissolved oxygen tank and the fine filter tank, with the outlet end of the rupture tube connected to the inlet end of the siphon tube.

[0015] The beneficial effects of this utility model are as follows: By setting up the first and second diversion plates, the water flow entering the fine filter can be evenly distributed to various areas, avoiding water flow concentration in a certain local area. This allows the water flow to pass through the filter medium and oxygenation device more evenly, improving the uniformity and comprehensiveness of filtration and preventing over-filtration in some areas and insufficient filtration in others. At the same time, it increases the contact area between water and air, allowing oxygen in the air to dissolve into the water more effectively. Furthermore, by changing the water flow path and speed, the residence time of the water flow in the oxygenation zone is extended, allowing more time for sufficient oxygen exchange with the air, further improving the oxygenation effect, thereby increasing the oxygenation efficiency and the dissolved oxygen content in the water. Attached Figure Description

[0016] Figure 1The diagram shown is a first three-dimensional structural schematic of the gravity-type fully automatic dissolved oxygen filter of this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional cross-sectional view of the gravity-type fully automatic dissolved oxygen filter of this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional cross-sectional view of the filter assembly in the gravity-type fully automatic dissolved oxygen filter of this utility model.

[0019] Figure 4 The diagram shown is a first three-dimensional structural schematic of the filter component in the gravity-type fully automatic dissolved oxygen fine filter of this utility model.

[0020] Figure 5 The diagram shown is a second three-dimensional structural schematic of the filter component in the gravity-type fully automatic dissolved oxygen fine filter of this utility model.

[0021] Explanation of reference numerals in the attached diagram: 1. Fine filter box; 2. Inlet pipe; 301. Dissolved oxygen box; 302. Diverter plate one; 303. Diverter plate two; 304. Rotating rod; 305. Mounting bearing; 306. Servo motor; 307. Fixing plate; 308. Filter plate one; 309. Filter plate two; 401. Clear water box; 402. Observation window; 403. Backwash pipe; 404. Water seal box; 405. Siphon pipe; 406. Destruction pipe. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment of a gravity-type fully automatic dissolved oxygen fine filter, including a fine filter box 1 and an inlet pipe 2; it also includes a filter assembly and a fine filter component. The filter assembly is installed at the top of the fine filter box 1, and fine filter components are provided at both the left and right ends of the fine filter box 1. The inlet pipe 2 is provided at the front end of the filter assembly. The filter assembly includes a dissolved oxygen box 301, which is located at the middle position of the top of the fine filter box 1, and the inlet pipe 2 is located at the front end of the dissolved oxygen box 301. The dissolved oxygen box 301 has a centrally symmetrical diverter plate 302 with through holes, and a diverter plate 303 with through holes is provided below the diverter plate 302, and the diverter plate 303 is rotatably connected to the dissolved oxygen box 301.

[0024] Please see Figures 3-5In this embodiment, a rotating rod 304 is internally connected to the first diversion plate 302 and the second diversion plate 303. A mounting bearing 305 is connected to the outer side of the rotating rod 304, and the mounting bearing 305 is located at the middle position inside the first diversion plate 302 and the second diversion plate 303. A servo motor 306 is installed at the middle position of the top of the dissolved oxygen tank 301, and the output end of the servo motor 306 is connected to the rotating rod 304. A fixing plate 307 is fixedly connected to the bottom end of the rotating rod 304. Filter plates 3 are symmetrically arranged centrally inside the dissolved oxygen tank 301. 08, and filter plate 308 is set at the lower end of fixed plate 307; filter plate 309 is set at the lower end of filter plate 308, and filter plate 309 is set at the lower part of dissolved oxygen tank 301. Servo motor 306 operates, driving rotating rod 304 to rotate. Diverter plate 302 and diverter plate 303 connected to rotating rod 304 also rotate synchronously. Raw water passes through filter plate 309 and filter plate 308 in sequence to perform preliminary filtration. The raw water after preliminary filtration flows into fine filter tank 1 and is repeatedly filtered through the existing internal structure.

[0025] Please see Figure 2 In this embodiment, the fine filtration assembly includes a clean water tank 401, which is installed opposite to the left and right ends of the fine filtration box 1, and the clean water tank 401 and the fine filtration box 1 are connected by a connecting pipe. An observation window 402 is installed on the surface of the clean water tank 401 facing away from the surface. A backwash pipe 403 is arranged opposite to the backwash pipe of the clean water tank 401. Water seal tanks 404 are provided at both ends of the fine filtration box 1, and the water seal tanks 404 are arranged between the clean water tanks 401. A siphon pipe 405 is connected between the clean water tank 401 and the water seal tank 404. A destructive device is provided on the right side between the dissolved oxygen tank 301 and the fine filtration box 1. Pipe 406, with its outlet end connected to the inlet end of siphon pipe 405, repeatedly filters the filter through its internal structure. When siphon pipe 405 is working, the water in water seal tank 404 forms a water seal at the outlet of siphon pipe 405, preventing air from entering siphon pipe 405 and disrupting the siphon effect, thus ensuring that the siphon effect can continue stably. The filter media is repeatedly rinsed to remove impurities and contaminants accumulated on the filter media during the filtration process. When the water level in the rinsing tank drops to siphon disruption pipe 406, air enters siphon pipe 405, disrupting the siphon effect, and the filtration and washing process ends.

[0026] During operation, raw water is delivered to the dissolved oxygen tank 301 through the inlet pipe 2. The servo motor 306 operates, driving the rotating rod 304 to rotate. The diversion plates 302 and 303, connected to the rotating rod 304, also rotate synchronously, thus diverting the raw water entering the dissolved oxygen tank 301. The inner diameter of the through holes on the diversion plates 302 and 303 decreases sequentially. When the raw water first passes through the diversion plate 302, the larger flow is initially dispersed. Then, as the water flows through the diversion plate 303, its smaller through hole diameter further disperses the flow, achieving multiple diversions and dispersions. This sequentially reduces the water volume, allowing the water to pass more evenly through the filter media and dissolved oxygen device, improving the uniformity and comprehensiveness of filtration, and increasing the water-air exchange rate. The increased contact area between the air and water allows oxygen in the air to dissolve more effectively into the water. After oxygen dissolution, the raw water undergoes preliminary filtration by passing through filter plate 2 309 and filter plate 1 308 in sequence. The pre-filtered raw water flows into the fine filter box 1, where it undergoes repeated filtration through the existing internal structure. The siphon tube 405 operates, and the water in the water seal box 404 forms a water seal at the outlet of the siphon tube 405 to prevent air from entering the siphon tube 405 and disrupting the siphon effect, ensuring that the siphon effect can continue stably. The filter media is repeatedly rinsed to remove impurities and contaminants accumulated on the filter media during the filtration process. When the water level in the rinsing water tank drops to the siphon disruption pipe 406, air enters the siphon tube 405, disrupting the siphon effect, and the filtration and washing process ends.

[0027] Through the above steps, with the cooperation of the first diversion plate 302 and the second diversion plate 303, the water flow entering the fine filter can be evenly distributed to various areas, avoiding water flow concentration in a certain area. This allows the water flow to pass through the filter media and oxygenation device more evenly, improving the uniformity and comprehensiveness of filtration. It prevents some areas from being over-filtered while others are under-filtered, and also buffers and rectifyes the water flow, making the water flow into the fine filter more stable. At the same time, it increases the contact area between water and air, allowing oxygen in the air to dissolve more effectively into the water, thereby improving the oxygenation efficiency and increasing the dissolved oxygen content in the water. This solves the problem that fully automatic dissolved oxygen fine filters have a relatively fixed structure, where the water to be filtered enters the fine filter directly, preventing oxygen in the air from fully dissolving into the water, reducing oxygenation efficiency, and affecting the water treatment effect.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A gravity-type fully automatic dissolved oxygen fine filter, comprising a fine filter box (1) and an inlet pipe (2); characterized in that: It also includes a filter assembly and a fine filter assembly. The top of the fine filter box (1) is equipped with a filter assembly. Fine filter assemblies are provided at both the left and right ends of the fine filter box (1). A water inlet pipe (2) is provided at the front end of the filter assembly. The filter assembly includes a dissolved oxygen tank (301). The dissolved oxygen tank (301) is located at the middle position at the top of the fine filter box (1), and the water inlet pipe (2) is located at the front end of the dissolved oxygen tank (301). The dissolved oxygen tank (301) has a centrally symmetrical diversion plate (302) with through holes. A diversion plate (303) with through holes is provided below the diversion plate (302), and the diversion plate (303) is rotatably connected to the dissolved oxygen tank (301).

2. The gravity-type fully automatic dissolved oxygen filter according to claim 1, characterized in that: The internal transmission connection between the first splitter plate (302) and the second splitter plate (303) is a rotating rod (304), and the outer bearing of the rotating rod (304) is connected to a mounting bearing (305), which is located in the middle position inside the first splitter plate (302) and the second splitter plate (303).

3. The gravity-type fully automatic dissolved oxygen filter according to claim 1, characterized in that: A servo motor (306) is installed at the middle position of the top of the dissolved oxygen tank (301), and the output end of the servo motor (306) is connected to the rotating rod (304). A fixing plate (307) is fixedly connected to the bottom end of the rotating rod (304).

4. The gravity-type fully automatic dissolved oxygen filter according to claim 1, characterized in that: The dissolved oxygen chamber (301) has a filter plate (308) arranged symmetrically at the center, and the filter plate (308) is located at the lower end of the fixed plate (307).

5. The gravity-type fully automatic dissolved oxygen filter according to claim 1, characterized in that: A second filter plate (309) is provided at the lower end of the first filter plate (308), and the second filter plate (309) is located inside the dissolved oxygen tank (301) at the bottom.

6. The gravity-type fully automatic dissolved oxygen filter according to claim 1, characterized in that: The fine filtration assembly includes a clean water tank (401), which is installed opposite to the left and right ends of the fine filtration box (1). The clean water tank (401) and the fine filtration box (1) are connected by a connecting pipe. An observation window (402) is installed on the surface of the clean water tank (401) facing away from the other side.

7. The gravity-type fully automatic dissolved oxygen filter according to claim 1, characterized in that: A backwash pipe (403) is provided opposite to the back side of the clean water tank (401), and water seal boxes (404) are provided at both ends of the fine filter box (1), with the water seal boxes (404) located between the clean water tanks (401).

8. The gravity-type fully automatic dissolved oxygen filter according to claim 1, characterized in that: A siphon tube (405) is connected between the clear water tank (401) and the water seal tank (404). A rupture tube (406) is provided on the right side between the dissolved oxygen tank (301) and the fine filter tank (1), and the liquid outlet of the rupture tube (406) is connected to the liquid inlet of the siphon tube (405).