Mechanical filter for improving filtration effect

Abstract

The utility model relates to a kind of mechanical filter of improving filtering effect, comprising: upper port, lower port, filter material, filter cap and external pipeline;Upper port and lower port are respectively arranged in the upper end and lower end of mechanical filter shell;External pipeline is arranged outside mechanical filter shell, and external pipeline includes external upper pipeline and external lower pipeline.The beneficial effects of the utility model are: the function of water production, gas washing, backwashing and forward washing is realized by the opening and closing of each valve in external pipeline;External pipeline is simplified and combined in design, which reduces production cost, makes the equipment more simple and convenient to maintain;When backwashing, clean water washes filter material from bottom to top through filter cap, causing turbulent disturbance;Gas washing makes gas wash from bottom to top, which is easier to wash filter layer, and will not disturb water surface, ensuring that oil stain and suspended matter are more easily removed;Through gas washing and backwashing from bottom to top and forward washing from top to bottom, impurities adsorbed by filter material are fully released.

Description

Technical Field

[0001] This utility model relates to the field of purification treatment, and in particular to a mechanical filter that improves filtration effect. Background Technology

[0002] Natural water typically contains impurities such as colloids, fine suspended solids, and particles. Direct use in production can affect equipment lifespan and product quality. Therefore, natural water usually needs to be purified before use to meet production requirements. Purifying water containing colloidal or particulate suspended solids requires water filters. Filtration separates these solids from the water. However, during the filtration process, the filter's effectiveness decreases due to the increase in impurities. Therefore, there is a pressing need for a mechanical filter that can improve filtration efficiency. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a mechanical filter that improves the filtration effect.

[0004] This mechanical filter, designed to improve filtration efficiency, includes: an upper port, a lower port, filter media, a filter cap, and external pipes. The upper and lower ports are located at the upper and lower ends of the mechanical filter housing, respectively. The external pipes are located outside the mechanical filter housing and include an upper external pipe and a lower external pipe. The upper external pipe has an inlet connected to a clear water tank and an outlet connected to the upper port. The lower external pipe has an outlet connected to the lower port and a product water pipe. The lower external pipe has an inlet connected to a compressed air pipe and an outlet connected to the lower port. The upper external pipe has an outlet connected to the top of the mechanical filter housing and a rainwater tank. The lower external pipe has an inlet connected to a backwash water pipe and an outlet connected to the lower port. The upper external pipe has an outlet connected to the upper port and a rainwater tank. The upper external pipe has an inlet connected to a clear water tank and an outlet connected to the upper port. The lower external pipe has an outlet connected to the lower port and a rainwater tank. The filter cap is fixed to the bottom of the filter media inside the mechanical filter and connected to the lower external pipe at the lower port.

[0005] Preferably, the external upper pipe connecting the clear water tank and the upper port is used for the inlet water of the product water and the inlet water of the forward wash. The external upper pipe is connected in series with an inlet valve, a differential pressure flow meter, an inlet manual valve and an inlet pneumatic valve along the water flow direction. The inlet valve is a main inlet manual valve and a main inlet electric valve connected in parallel. The external lower pipe connecting the lower port and the product water pipe is used for the outlet water of the product water. The external lower pipe is connected in series with a product water pressure gauge, a product water pneumatic valve and a product water turbidity meter along the water flow direction. The external lower pipe connecting the lower port and the rainwater tank is used for the outlet water of the forward wash. The external lower pipe is connected with a forward wash outlet pneumatic valve along the water flow direction.

[0006] Preferably, an external lower pipe connected between the compressed air pipe and the lower port is used for compressed air intake. The external lower pipe is connected in series with a compressed air intake manual valve, a compressed air intake check valve and a compressed air intake pneumatic valve along the water flow direction. An external upper pipe connected between the top of the mechanical filter housing and the rainwater pool is used for compressed air exhaust. The external upper pipe is connected with an exhaust pneumatic valve.

[0007] Preferably, an external lower pipe connected between the backwash water pipe and the lower port is used for backwash water inlet, and the external lower pipe is connected in series with a backwash water inlet manual valve and a backwash water inlet pneumatic valve along the water flow direction; an external upper pipe connected between the upper port and the rainwater tank is used for backwash water outlet, and the external upper pipe is connected in series with an inlet pressure gauge and a backwash water outlet pneumatic valve along the water flow direction.

[0008] Preferably, the filter media, from top to bottom, includes anthracite, fine quartz sand, and coarse quartz sand; the filter cap is equipped with a nozzle, which is set upwards; and a water distribution plate is fixed at the top inside the mechanical filter housing.

[0009] Preferably, the mechanical filter housing has support legs at the bottom; a viewing mirror is provided on the side wall of the mechanical filter housing; a discharge port is provided at the bottom of the filter media; an upper manhole is provided on the upper side of the mechanical filter housing; and a lower manhole is provided at the bottom of the mechanical filter housing.

[0010] The beneficial effects of this utility model are:

[0011] 1) The external pipe of this utility model is connected to the upper port, lower port and top of the mechanical filter housing. The external pipe is connected to the clear water tank, compressed air pipe, backwash water pipe, water production pipe and rainwater tank. The functions of water production, air washing, backwashing and forward washing are realized by opening and closing the valves in the external pipe.

[0012] 2) The middle vertical part of the external upper pipe of this utility model serves as both the water inlet pipe for water production and forward washing, and the water outlet pipe for backwashing. The middle vertical part of the external lower pipe serves as both the water outlet pipe for water production and the water inlet pipe for backwashing and air washing. The external upper pipe connected between the clear water tank and the upper port serves as both the water inlet pipe for water production and the water inlet pipe for forward washing. The external pipe design simplifies and merges many pipes, reducing production costs while making the equipment simpler and easier to maintain.

[0013] 3) The diameter of the filter media in this utility model decreases from top to bottom, with the top being lighter and the bottom heavier, and the top being finer and the bottom being coarser, allowing suspended solids to penetrate deep into the interior of the filter media, thereby improving the interception capacity and filtration cycle.

[0014] 4) During backwashing, clean water washes the filter media from bottom to top through the filter cap, causing turbulence; air washing allows gas to wash from bottom to top, making it easier to wash the filter layer without disturbing the water surface, thus ensuring that oil stains and suspended solids are more easily removed; through air washing and backwashing from bottom to top and forward washing from top to bottom, the impurities adsorbed by the filter media are fully released. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external piping of the filter;

[0016] Figure 2 This is a schematic diagram of the internal structure of the filtration device.

[0017] Explanation of reference numerals in the attached diagram: 1. Main inlet manual valve; 2. Main inlet electric valve; 3. Differential pressure flow meter; 4. Inlet manual valve; 5. Inlet pneumatic valve; 6. Inlet pressure gauge; 7. Backwash outlet pneumatic valve; 8. Compressed air inlet manual valve; 9. Compressed air inlet check valve; 10. Compressed air inlet pneumatic valve; 11. Product water pressure gauge; 12. Product water pneumatic valve; 13. Product water turbidity meter; 14. Backwash inlet manual valve; 15. Backwash inlet pneumatic valve; 16. Forward wash outlet pneumatic valve; 17. Lower manhole; 18. Discharge port; 19. Upper manhole; 20. Sight glass; 21. Exhaust pneumatic valve; 22. Filter cap; 23. Water distribution tray; 24. Coarse quartz sand; 25. Fine quartz sand; 26. Anthracite; 27. Rainwater pool. Detailed Implementation

[0018] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that, for those skilled in the art, several modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0019] As one embodiment, a mechanical filter for improving filtration efficiency is proposed, such as... Figure 1 and Figure 2 As shown, it includes: an upper port, a lower port, filter media, a filter cap 22, and an external pipe; the upper port and the lower port are respectively located at the upper end and the lower end of the mechanical filter housing; the external pipe is located outside the mechanical filter housing, and the external pipe includes an external upper pipe and an external lower pipe;

[0020] like Figure 1As shown, the pipelines used for water production are as follows: the input end of the external upper pipe is connected to the clear water tank, and the other end is connected to the upper port; one end of the external lower pipe is connected to the lower port, and the other end is connected to the water production pipe; specifically, the external upper pipe connected between the clear water tank and the upper port is used for water production inlet, and the external upper pipe is connected in series with an inlet valve, a differential pressure flow meter 3, an inlet manual valve 4, and an inlet pneumatic valve 5 along the water flow direction. The inlet valves are a main inlet manual valve 1 and a main inlet electric valve 2 connected in parallel; the external lower pipe connected between the lower port and the water production pipe is used for water production outlet, and the external lower pipe is connected in series with a water production pressure gauge 11, a water production pneumatic valve 12, and a water production turbidity meter 13 along the water flow direction.

[0021] like Figure 1 As shown, the pipelines used for air washing are as follows: the input end of the external lower pipeline is connected to a compressed air pipe, and the other end is connected to the lower port; one end of the external upper pipeline is connected to the top of the mechanical filter housing, and the other end is connected to the rainwater pool 27; specifically, the external lower pipeline connected between the compressed air pipe and the lower port is used for compressed air intake, and the external lower pipeline is connected in series with a compressed air intake manual valve 8, a compressed air intake check valve 9, and a compressed air intake pneumatic valve 10 along the water flow direction; the external upper pipeline connected between the top of the mechanical filter housing and the rainwater pool 27 is used for compressed air exhaust, and the external upper pipeline is connected to an exhaust pneumatic valve 21;

[0022] like Figure 1 As shown, the pipelines used for backwashing are as follows: the input end of the external lower pipeline is connected to the backwash water pipe, and the other end is connected to the lower port; one end of the external upper pipeline is connected to the upper port, and the other end is connected to the rainwater tank 27; the external lower pipeline connected between the backwash water pipe and the lower port is used for backwash water intake, and the external lower pipeline is connected in series with a backwash water intake manual valve 14 and a backwash water intake pneumatic valve 15 along the water flow direction; the external upper pipeline connected between the upper port and the rainwater tank 27 is used for backwash water outlet, and the external upper pipeline is connected in series with an inlet pressure gauge 6 and a backwash water outlet pneumatic valve 7 along the water flow direction.

[0023] like Figure 1 As shown, the pipeline used for forward washing is as follows: the input end of the external upper pipe is connected to the clear water tank, and the other end is connected to the upper port; one end of the external lower pipe is connected to the lower port, and the other end is connected to the rainwater tank 27; specifically, the external upper pipe connected between the clear water tank and the upper port is used for production water inlet and forward washing water inlet. The external upper pipe is connected in series with an inlet valve, a differential pressure flow meter 3, an inlet manual valve 4, and an inlet pneumatic valve 5 along the water flow direction. The inlet valves are a main inlet manual valve 1 and a main inlet electric valve 2 connected in parallel; the external lower pipe connected between the lower port and the rainwater tank 27 is used for forward washing water outlet. The external lower pipe is connected with a forward washing water outlet pneumatic valve 16 along the water flow direction.

[0024] The inlet water pressure gauge 6 and the product water pressure gauge 11 are connected to the control system signal. The pressure values ​​of the liquid inside the inlet and outlet water pipes are observed through the inlet water pressure gauge 6 and the product water pressure gauge 11. At the same time, the product water turbidity meter 13 determines whether the equipment needs to be backwashed to ensure the cleanliness and efficiency of the product water. The backwashing process can be completed automatically based on the pressure difference between the inlet and outlet or by timing.

[0025] like Figure 2 As shown, the filter cap 22 is fixed to the bottom of the filter media inside the mechanical filter and connected to the external lower pipe connected to the lower port; the filter media, from top to bottom, includes anthracite 26, fine quartz sand 25 and coarse quartz sand 24, the anthracite 26 has a diameter of 1-2mm, the fine quartz sand 25 has a diameter of 0.4-1.2mm, and the coarse quartz sand 24 has a diameter of 3-5mm; the filter cap 22 is equipped with a nozzle, which is set upwards for spraying water upwards; a water distribution plate 23 is fixed at the top inside the mechanical filter housing, and the raw water flows evenly downwards from the upper water distribution plate 23 through the filter media; the bottom of the mechanical filter housing is supported by support legs; a viewing mirror 20 is provided on the side wall of the mechanical filter housing; the mechanical filter housing located at the bottom of the filter media is provided with a discharge port 18; an upper manhole 19 is provided on the upper side of the mechanical filter housing, and a lower manhole 17 is provided at the bottom of the mechanical filter housing.

Claims

1. A mechanical filter for improving filtration efficiency, characterized in that, include: The filter consists of an upper port, a lower port, filter media, a filter cap, and external pipes. The upper and lower ports are located at the upper and lower ends of the mechanical filter housing, respectively. The external pipes are located outside the mechanical filter housing and include an upper external pipe and a lower external pipe. The upper external pipe has an inlet connected to a clear water tank and an outlet connected to the upper port. The lower external pipe has an outlet connected to the lower port and a product water pipe. The lower external pipe has an inlet connected to a compressed air pipe and an outlet connected to the lower port. The upper external pipe has an outlet connected to the top of the mechanical filter housing and a rainwater tank. The lower external pipe has an inlet connected to a backwash water pipe and an outlet connected to the lower port. The upper external pipe has an outlet connected to the upper port and a rainwater tank. The upper external pipe has an inlet connected to a clear water tank and an outlet connected to the upper port. The lower external pipe has an outlet connected to the lower port and a rainwater tank. The filter cap is fixed to the bottom of the filter media inside the mechanical filter and connected to the lower external pipe at the lower port.

2. The mechanical filter for improving filtration effect according to claim 1, characterized in that, An external upper pipe connecting the clear water tank and the upper port is used for product water inlet and forward wash water inlet. This external upper pipe is connected in series with an inlet valve, a differential pressure flow meter, an inlet manual valve, and an inlet pneumatic valve along the water flow direction. The inlet valves are a main inlet manual valve and a main inlet electric valve connected in parallel. An external lower pipe connecting the lower port and the product water pipe is used for product water outlet. This external lower pipe is connected in series with a product water pressure gauge, a product water pneumatic valve, and a product water turbidity meter along the water flow direction. An external lower pipe connecting the lower port and the rainwater tank is used for forward wash water outlet. This external lower pipe is connected with a forward wash water outlet pneumatic valve along the water flow direction.

3. The mechanical filter for improving filtration effect according to claim 1, characterized in that, An external lower pipe connected between the compressed air pipe and the lower port is used for compressed air intake. The external lower pipe is connected in series with a compressed air intake manual valve, a compressed air intake check valve, and a compressed air intake pneumatic valve along the water flow direction. An external upper pipe connected between the top of the mechanical filter housing and the rainwater pool is used for compressed air exhaust. The external upper pipe is connected with an exhaust pneumatic valve.

4. The mechanical filter for improving filtration effect according to claim 1, characterized in that, An external lower pipe connected between the backwash water pipe and the lower port is used for backwash water inlet. The external lower pipe is connected in series with a backwash water inlet manual valve and a backwash water inlet pneumatic valve along the water flow direction. An external upper pipe connected between the upper port and the rainwater tank is used for backwash water outlet. The external upper pipe is connected in series with an inlet pressure gauge and a backwash water outlet pneumatic valve along the water flow direction.

5. The mechanical filter for improving filtration effect according to claim 1, characterized in that, The filter media, from top to bottom, include anthracite, fine quartz sand, and coarse quartz sand; the filter cap is equipped with a nozzle, which is set upwards; a water distribution plate is fixed at the top inside the mechanical filter housing.

6. The mechanical filter for improving filtration effect according to claim 1, characterized in that, The mechanical filter housing has support legs at the bottom; a viewing mirror is provided on the side wall of the mechanical filter housing; a discharge port is provided at the bottom of the filter media; an access port is provided on the upper side of the mechanical filter housing, and a access port is provided at the bottom of the mechanical filter housing.

Images