Filter tank clear water adjusting water tank
By adding a filter water regulating tank between the filter outlet and the main clean water pipe, and using a water-blocking baffle and reinforcing rib structure, the problem of negative pressure backflow during the renovation of old filter beds was solved, achieving stable discharge of filter bed effluent and low-cost renovation.
Patent Information
- Application Number
- CN202520136010.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-20
AI Technical Summary
When renovating old filter beds, the flow of filtered water into the main clean water pipe may generate negative pressure, causing backflow, which is difficult to solve effectively with existing technology.
Design a filter bed clear water regulating tank. By adding a tank between the filter bed outlet and the clear water main pipe, the tank body is divided into an inlet chamber and an outlet chamber by a water-proof baffle. Reinforcing ribs and spiral metal wires are installed in the inlet pipe to prevent backflow of water.
It achieves stable discharge of effluent from old filter beds during renovation, avoiding negative pressure and backflow phenomena, and is simple to operate and low in cost.
Smart Images

Figure CN223887553U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water treatment technology, and in particular to a filter bed clear water regulating tank. Background Technology
[0002] When renovating existing old filter beds, the possibility of backflow due to negative pressure when the filtered water from each filter bed flows into the main clear water pipe was already considered. Before the renovation, the filtered clear water from the old filter beds was mostly discharged into the main clear water pipe through siphons or drop channels. During the filter bed renovation, it is necessary to eliminate the siphons or drop channels and directly connect the clear water pipes of each filter bed into the main clear water pipe. However, this can easily generate negative pressure and potentially cause backflow.
[0003] Newly built backwash filters typically have an equalization tank installed before the filtered water from each filter enters the main clean water pipe. The filtered water first flows into the equalization tank and then flows into the main clean water pipe via a cascade system. However, older filters rarely have this feature.
[0004] Therefore, there is an urgent need to design a filter water conditioning tank for the renovation of old filter beds. Summary of the Invention
[0005] The purpose of this utility model is to provide a filter bed clear water regulating tank to solve the problems existing in the prior art. It can achieve the conditions of creating negative pressure and backflow by damaging the clear water pipe, so as to make the old filter bed renovation stable.
[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides a filter bed clear water conditioning tank, comprising:
[0007] The tank has a lid on top; an inlet pipe and an outlet pipe are connected to the tank; the inlet pipe is connected to the outlet of the filter tank via a flange; the outlet pipe is connected to the main filtered clean water pipe via a flange.
[0008] A water-proof baffle is arranged at the bottom of the box, which divides the bottom area of the box into an inlet chamber and an outlet chamber.
[0009] The water inlet pipe is fixedly installed on the side wall of the tank and is located above the water inlet chamber; the water outlet pipe is fixedly installed at the bottom of the tank and is connected to the water outlet chamber.
[0010] The length, width, and height ratio of the box is 2:1:3.
[0011] The water-proof baffle is installed perpendicular to the bottom of the box, and the height of the water-proof baffle is the same as the width and length of the box.
[0012] The inlet pipe and outlet pipe have the same structure; the inner wall of the inlet pipe is provided with reinforcing ribs along the opening direction; and several reinforcing ribs are arranged circumferentially at equal intervals along the inner wall of the inlet pipe.
[0013] The ratio of the diameter of the reinforcing rib to the wall thickness of the water inlet pipe is 1.5-2.
[0014] The water inlet pipe is wrapped with a layer of spiral metal wire.
[0015] The spacing between the spiral metal wires is 7-8 mm.
[0016] This utility model discloses the following technical effects: Considering the actual situation of old filter renovation, this device adds a filter clean water regulating tank between the filter outlet and the main clean water pipe. This ensures that the water from the filter outlet enters the tank and first falls into the inlet chamber. Since the height of the inlet chamber exceeds the baffle plate, the water falls directly into the outlet chamber, and its height will not exceed the height of the inlet pipe, preventing backflow and negative pressure. The water is then discharged to the main clean water pipe through the outlet pipe. This device is simple to operate, has significant effects in the actual renovation of old filter beds, and is low in cost. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a front view of the overall structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the end face structure of the water inlet pipe of this utility model;
[0021] The components include: 1. Box body; 2. Box cover; 3. Water inlet pipe; 4. Water outlet pipe; 5. Waterproof baffle; 6. Water inlet chamber; 7. Water outlet chamber; 8. Reinforcing ribs; 9. Spiral metal wire. Detailed Implementation
[0022] 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.
[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0024] This utility model provides a filter bed clear water conditioning tank, comprising:
[0025] The tank body 1 has a cover 2 on its top; the tank body 1 is connected to an inlet pipe 3 and an outlet pipe 4; the inlet pipe 3 is connected to the outlet end of the filter tank through a flange; the outlet pipe 4 is connected to the main pipe of filtered clean water through a flange.
[0026] A water-proof baffle 5 is arranged at the bottom of the tank 1, which divides the bottom area of the tank 1 into a water inlet chamber 6 and a water outlet chamber 7.
[0027] The water inlet pipe 3 is fixedly installed on the side wall of the tank 1 and is located above the water inlet chamber 6; the water outlet pipe 4 is fixedly installed at the bottom of the tank 1 and is connected to the water outlet chamber 7.
[0028] The length, width, and height ratio of box 1 is 2:1:3.
[0029] The water-proof baffle 5 is installed perpendicular to the bottom of the box 1, and the height of the water-proof baffle 5 is the same as the width and length of the box 1.
[0030] The inlet pipe 3 and the outlet pipe 4 have the same structure; the inner wall of the inlet pipe 3 is provided with reinforcing ribs 8 along the opening direction; there are several reinforcing ribs 8 arranged circumferentially at equal intervals along the inner wall of the inlet pipe 3.
[0031] The ratio of the diameter of the reinforcing rib 8 to the wall thickness of the inlet pipe 3 is 1.5-2.
[0032] The water inlet pipe 3 is wrapped with a layer of spiral metal wire 9.
[0033] The spacing of the spiral metal wire 9 is 7-8mm.
[0034] In one embodiment of this utility model, the filter water conditioning tank has a square structure.
[0035] Furthermore, the actual dimensions of the filter water regulating tank are determined based on the scale of the filter and the on-site installation conditions. The length-width-height ratio of the tank is 2:1:3. A water baffle 5 is added to the center of the bottom of the tank 1. The height of the water baffle 5 is equal to the width of the tank 1. A DN500 round hole is cut in the middle of the wide side plate and the outside of the bottom plate of the tank. A DN500 inlet pipe 3 with a length of 100mm is welded on. A DN500 flange is also welded on.
[0036] Furthermore, the flange of the clean water inlet is connected to the clean water regulating pneumatic butterfly valve during installation.
[0037] Furthermore, the baffle plate 5 divides the tank 1 into two compartments, one for water inlet and the other for water outlet. A DN500 round hole is cut in the middle of the long direction of the water outlet tank and on the outside of the bottom plate, and a DN500, 100mm long water outlet pipe 4 is welded on. A DN500 flange is then welded on, which is the clean water outlet. The flange of the outlet is connected to the clean water main pipe.
[0038] In one embodiment of this utility model, the construction process of building a new filter cannot be directly copied when renovating an existing old filter. This is because the old filter cannot meet the layout and installation requirements of the existing process pipelines in terms of space and installation location during the design process, and will also damage the original filter body, thereby posing a risk of leakage to the body.
[0039] Furthermore, the operation process of this device is as follows: after the water source at the outlet end of the filter enters the tank 1, it first falls into the inlet chamber 6. After the height of the inlet chamber 6 exceeds the water baffle 5, it will fall directly into the outlet chamber 7. Its height will not exceed the height of the inlet pipe 3, so there will be no backflow, negative pressure, etc. Then, the water source is discharged to the clear water main pipe through the outlet pipe 4 to achieve stable operation of the filter.
[0040] In one embodiment of this utility model, a reinforcing rib 8 is arranged inside the water inlet pipe 3, so that the reinforcing rib 8 covers the inner surface of the pipe body, which does not affect the water permeability of the water inlet pipe 3, and improves the structural strength of the water inlet pipe 3.
[0041] In one embodiment of this utility model, the spiral metal wire 9 can reduce external damage and prevent water pipe leakage.
[0042] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 utility model 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 utility model.
[0043] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A filter bed clear water conditioning tank, characterized in that, include: The box body (1) is covered with a box cover (2) on the top; the box body (1) is connected to an inlet pipe (3) and an outlet pipe (4); the inlet pipe (3) is connected to the outlet end of the filter tank through a flange; the outlet pipe (4) is connected to the main pipe of filtered clean water through a flange. The bottom of the box (1) is provided with a water-proof baffle (5), which divides the bottom area inside the box (1) into a water inlet chamber (6) and a water outlet chamber (7). The inlet pipe (3) is fixedly installed on the side wall of the box (1) and placed in the area above the inlet chamber (6); the outlet pipe (4) is fixedly installed at the bottom of the box (1) and is connected to the outlet chamber (7).
2. The filter bed clear water conditioning tank according to claim 1, characterized in that: The length, width and height ratio of the box (1) is 2:1:
3.
3. The filter bed clear water conditioning tank according to claim 1, characterized in that: The water-proof baffle (5) is set perpendicular to the bottom of the box (1), and the height of the water-proof baffle (5) is the same as the width and length of the box (1).
4. The filter bed clear water conditioning tank according to claim 1, characterized in that: The inlet pipe (3) and outlet pipe (4) have the same structure; the inner wall of the inlet pipe (3) is provided with reinforcing ribs (8) along the opening direction; a number of reinforcing ribs (8) are arranged circumferentially at equal intervals along the inner wall of the inlet pipe (3).
5. A filter bed clear water conditioning tank according to claim 4, characterized in that: The ratio of the diameter of the reinforcing rib (8) to the wall thickness of the water inlet pipe (3) is 1.5-2.
6. A filter bed clear water conditioning tank according to claim 4, characterized in that: The water inlet pipe (3) is wrapped with a layer of spiral metal wire (9).
7. A filter bed clear water conditioning tank according to claim 6, characterized in that: The spacing of the spiral metal wires (9) is 7-8 mm.