CN220183034U - Pretreatment filter device for saline sewage - Google Patents

Abstract

The utility model relates to the technical field of water treatment, specifically a salty sewage pretreatment filtering device. A filter tank is provided below the desalination tank, and the desalination tank and the filter tank are connected through a connecting pipe. A connecting pipe valve is provided on one side of the pipe, a water inlet pipe is inserted into the upper side of the desalination tank at the middle position, and two wastewater pipes are symmetrically inserted into the lower side of the desalination tank at both ends, so An anion selective permeability membrane is provided at one end of the inside of the desalination tank, and a cation selective permeability membrane is provided at the other end of the inside of the desalination tank. The utility model generates an electric field through the positive capacitor plate and the negative capacitor plate, allowing the positive and negative ions in the salt sewage to pass through the cation selective permeability membrane and the anion selective permeability membrane respectively, thereby separating the salt ions in the salt sewage and preventing Salt clogs filters and causes equipment corrosion.

Description

A salty sewage pretreatment and filtering device

Technical field

The utility model relates to the technical field of water treatment, specifically a salty sewage pretreatment and filtering device.

Background technique

In order to filter impurities contained in various fluids, most people will use at least one filter to filter them. Among them, water resources necessary for human life are susceptible to industrial pollution and carcinogens produced by the use of chlorides for disinfection. (trihalomethanes), heavy metals and toxic substances released from metal water pipes, and various unknown sources of infection outside the pipes. Therefore, users often install filters such as cartridge type, filter type or reverse osmosis type at the outlet of tap water. Various water purifiers such as these to filter impurities in the water.

According to the patent application number: CN201920380722.2, a water filtration device is disclosed, which includes a straight tubular filter element. The straight tubular filter element has a clean water outlet end, and the straight tube has a first water outlet end, a water inlet end and a first water filtration device. Two water outlets, the first water outlet is connected to the clean water outlet, the second water outlet has a control valve, and one side of the inner wall of the straight tube has a first guide part; a set of rings is connected to the straight tubular filter element, and the ring is The inner ring surface has a first cleaning part, one side of the collar has a second guide part, the second guide part is connected to the first guide part in a relatively up and down moveable manner, and the other side of the collar is screwed A first screw, one end of the first screw is connected to a driving member, so that when the first screw rotates in situ, the first cleaning member of the collar moves up and down to clean the outer wall of the straight tubular filter element, even at the same time However, this utility model cannot separate the salt in the sewage. The accumulation of salt can easily lead to clogging of the filter screen and corrosion of equipment parts. Moreover, this utility model can only scrub the surface of the filter element when cleaning the filter element. It is difficult to flush out the impurity particles inside the filter holes, which reduces the cleaning effect. Therefore, those skilled in the art provide a saline sewage pretreatment filtering device to solve the problems raised in the above background art.

Utility model content

The purpose of this utility model is to provide a salty sewage pretreatment and filtering device to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

A salty sewage pretreatment filtering device includes a desalination tank. A filter tank is provided below the desalination tank. The desalination tank and the filter tank are connected through a connecting pipe. One side of the connecting pipe is provided with a filter tank. Connecting pipe valve, the upper side of the desalting tank is located at the middle position with a water inlet pipe, and the lower side of the desalting tank is located at both ends with two wastewater pipes symmetrically inserted, the inside of the desalting tank is An anion selective permeability membrane is provided at one end, and a cation selective permeability membrane is provided at the other end of the inner side of the desalination tank. A positive capacitor plate is provided at the inner end of the desalination tank on one side of the anion selective permeability membrane, and The other end of the inside of the desalination tank is located on one side of the cation selective permeability membrane and is provided with a negative capacitor plate. The inside of the filter tank is located at the middle position and is symmetrically provided with two filters, and the two ends of the filter tank are symmetrically inserted. There are two outlet pipes.

As a further solution of the present invention: a cleaning pipe is provided below the filter tank, both ends of the cleaning pipe are inserted inside the filter tank, and the two ends of the cleaning pipe are symmetrically connected with two high-pressure nozzles. A cleaning pump is provided below the cleaning pipe. The water inlet of the cleaning pump is connected to the cleaning plate water inlet pipe, and the water outlet of the cleaning pump is connected to the inside of the cleaning pipe.

As a further solution of the present invention: a cleaning water outlet pipe is inserted into the lower side of the filter tank at the middle position, and an outlet pipe valve is provided on the cleaning water outlet pipe.

As a further solution of the present invention: the desalination tank and the filter tank are fixed by two connecting plates.

As a further solution of the present invention: four support columns arranged in a rectangular shape are fixed symmetrically on both sides of the filter tank, and support bottom plates are fixed at the bottom ends of the four support columns.

As a further solution of the present invention: the upper end of the water inlet pipe is provided with a flange.

Compared with the existing technology, the beneficial effects of the present utility model are: the utility model generates an electric field through the positive capacitor plate and the negative capacitor plate, allowing the positive and negative ions in the salt sewage to pass through the cation selective permeability membrane and the anion selective permeability membrane respectively. The membrane can separate the salt ions in the salt sewage to prevent the salt from blocking the filter screen and causing equipment corrosion. The cleaning water is pumped into the inside of the cleaning pipe through the cleaning pump, and the cleaning water is sprayed to the side of the filter screen through a high-pressure nozzle. The filter can be backwashed to flush out impurity particles in the filter holes, thereby improving the cleaning effect.

Description of drawings

Figure 1 is a schematic structural diagram of a salty sewage pretreatment and filtering device;

Figure 2 is a schematic diagram of the internal structure of a salty sewage pretreatment and filtering device;

Figure 3 is an enlarged structural schematic diagram of position A in Figure 1 of a saline sewage pretreatment and filtering device.

In the picture: 1. Desalination tank; 2. Filter tank; 3. Connecting pipe; 4. Connecting pipe valve; 5. Water inlet pipe; 6. Wastewater pipe; 7. Anion selective permeability membrane; 8. Cation selective permeability membrane ; 9. Positive capacitor plate; 10. Negative capacitor plate; 11. Filter; 12. Cleaning pipe; 13. High-pressure nozzle; 14. Cleaning pump; 15. Cleaning plate inlet pipe; 16. Water outlet pipe; 17. Cleaning water outlet Water pipe; 18. Outlet pipe valve; 19. Connecting plate; 20. Support column; 21. Flange plate.

Detailed ways

Please refer to Figures 1 to 3. In the embodiment of the present invention, a salty sewage pretreatment filtering device includes a desalination tank 1. A filter tank 2 is provided below the desalination tank 1, and the desalination tank 1 and the filter tank 2 are connected through a connecting pipe 3. A connecting pipe valve 4 is provided on one side of the connecting pipe 3. A water inlet pipe 5 is inserted on the upper side of the desalting tank 1 at the middle position, and the lower side of the desalting tank 1 is located on both sides. Two wastewater pipes 6 are symmetrically inserted at the end positions. An anion selective permeability membrane 7 is provided at one end of the desalination tank 1, and a cation selective permeability membrane 8 is provided at the other end of the desalination tank 1. The desalination tank 1 The inner end of 1 is located on one side of the anion selective permeability membrane 7 and is provided with a positive capacitor plate 9, and the other inner end of the desalination tank 1 is located on one side of the cation selective permeability membrane 8 and is provided with a negative capacitor plate 10, filtering Two filters 11 are symmetrically arranged on the inside of the tank 2 at the middle position, and two outlet pipes 16 are symmetrically inserted at both ends of the filter tank 2 .

In Figures 1 and 2: a cleaning pipe 12 is provided below the filter tank 2. Both ends of the cleaning pipe 12 are inserted inside the filter tank 2, and the two ends of the cleaning pipe 12 are symmetrically connected with two high-pressure nozzles 13. , a cleaning pump 14 is provided below the cleaning pipe 12. The water inlet of the cleaning pump 14 is connected to the cleaning plate inlet pipe 15, and the water outlet of the cleaning pump 14 is internally connected to the cleaning pipe 12. The cleaning pump 14 is controlled to operate to pump the external cleaning water. Enter the inside of the cleaning pipe 12, and then spray it to one side of the two filters 11 through the two high-pressure nozzles 13. The filter 11 can be backwashed, and the impurities in the filter holes of the filter 11 can be washed out, and the filter can be automatically cleaned. The mesh 11 is cleaned to ensure the filtering performance of the filter mesh 11.

In Figure 3: the lower side of the filter tank 2 is located in the middle position with a cleaning water outlet pipe 17. The cleaning water outlet pipe 17 is provided with an outlet pipe valve 18. When the outlet pipe valve 18 is opened, impurities and cleaning water pass through the cleaning water. The water outlet pipe 17 can be discharged to the outside of the filter tank 2 .

In Figure 1: the desalination tank 1 and the filter tank 2 are fixed by two connecting plates 19, and the connecting plates 19 are used to fix the desalination tank 1 and the filter tank 2.

In Figure 1: four rectangularly arranged support columns 20 are fixed symmetrically on both sides of the filter tank 2. The bottom ends of the four support columns 20 are fixed with support bottom plates. The support columns 20 are used to support the entire device.

In Figure 1: the upper end of the water inlet pipe 5 is provided with a flange 21, and the flange 21 is used to connect the water inlet pipe 5 with external pipes.

The working principle of the utility model is: during use, add salty sewage to the inside of the desalination tank 1 through the water inlet pipe 5. The salty sewage is located between the anion selective permeability membrane 7 and the cation selective permeability membrane 8, and then the positive electrode capacitor The plate 9 and the negative capacitor plate 10 are powered on, and an electric field is generated between the positive capacitor plate 9 and the negative capacitor plate 10. The positive and negative ions in the salt water move in opposite directions under the action of the electric field force, and the negative ions selectively permeate through the anions. The membrane 7 flows to one end of the positive capacitor plate 9, and the positive ions flow through the cation selective permeability membrane 8 to one end of the negative capacitor plate 10, and then are discharged through the two wastewater pipes 6. At this time, the anion selective permeability membrane 7 and the cation selective The salt is removed from the water between the permeable membranes 8, and then the water is transported to the inside of the filter tank 2 through the connecting pipe 3. After being filtered by the two filters 11, it is discharged through the two outlet pipes 16, and the sewage can be treated The salt is pretreated to prevent the salt from clogging the filter screen 11 and causing corrosion of the equipment. The cleaning pump 14 is controlled to operate to pump the external cleaning water into the inside of the cleaning pipe 12, and then sprayed to the two filters through the two high-pressure nozzles 13. On one side of the screen 11, the filter screen 11 can be backwashed to flush out the impurities in the filter holes of the filter screen 11. The filter screen 11 can be automatically cleaned to ensure the filtering performance of the filter screen 11. Open the outlet pipe valve 18. The impurities and cleaning water can be discharged to the outside of the filter tank 2 through the cleaning water outlet pipe 17 .

The above are only preferred specific implementations of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person familiar with the technical field shall, within the technical scope disclosed by the present utility model, according to the present utility model Any equivalent substitution or change of the technical solution of the utility model and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

1. A salty sewage pretreatment filtering device, including a desalination tank (1), characterized in that a filter tank (2) is provided below the desalination tank (1), and the desalination tank (1) is connected to The filter tanks (2) are connected through a connecting pipe (3). A connecting pipe valve (4) is provided on one side of the connecting pipe (3). The upper side of the desalting tank (1) is located at the middle position. A water inlet pipe (5) is provided, and two wastewater pipes (6) are symmetrically inserted at the lower side of the desalination tank (1) at both ends. An anion selector is provided at one end of the inner side of the desalination tank (1). a cation selective permeability membrane (7), and the other inner end of the desalination tank (1) is provided with a cation selective permeability membrane (8), and the inner end of the desalination tank (1) is located between the anion selective permeability membrane (7) A positive capacitor plate (9) is provided on one side of the desalination tank (1), and a negative capacitor plate (10) is provided on one side of the cation selective permeability membrane (8) at the other end of the desalination tank (1). The filter tank (1) 2) There are two filters (11) symmetrically arranged on the inside of the middle section, and two outlet pipes (16) are symmetrically inserted at both ends of the filter tank (2). 2. A salty sewage pretreatment filtering device according to claim 1, characterized in that a cleaning pipe (12) is provided below the filter tank (2), and both ends of the cleaning pipe (12) are inserted inside the filter tank (2), and the two ends of the cleaning pipe (12) are symmetrically connected with two high-pressure nozzles (13), and a cleaning pump (14) is provided below the cleaning pipe (12), so The water inlet of the cleaning pump (14) is connected to the cleaning plate water inlet pipe (15), and the water outlet of the cleaning pump (14) is internally connected to the cleaning pipe (12). 3. A salty sewage pretreatment filtering device according to claim 1, characterized in that a cleaning water outlet pipe (17) is inserted at the lower side of the filter tank (2) at the middle position, and the The cleaning water outlet pipe (17) is provided with an outlet pipe valve (18). 4. A salty sewage pretreatment and filtering device according to claim 1, characterized in that the desalination tank (1) and the filter tank (2) are fixed by two connecting plates (19). 5. A salty sewage pretreatment filtering device according to claim 1, characterized in that four rectangularly arranged support columns (20) are symmetrically fixed on both sides of the filter tank (2), and four support columns (20) are symmetrically fixed on both sides of the filter tank (2). The bottom ends of the support columns (20) are fixed with support bottom plates. 6. A salty sewage pretreatment and filtering device according to claim 1, characterized in that a flange (21) is provided at the upper end of the water inlet pipe (5).