Self-cleaning backwashing water purifier for filtering inlet water of gas-fired boiler

Abstract

The utility model relates to the technical field of water purification, and discloses a self-cleaning backwashing water purifier for filtering inlet water of a gas boiler, which comprises a tank body and a tank cover, a stainless steel filter screen is arranged in a tank body cavity, the top end of the outer wall surface of the tank body is communicated and connected with a water inlet pipe, and the top end of the tank cover is communicated and connected with a water outlet pipe. A flushing assembly is further arranged in the tank body cavity and comprises a flushing part and a displacement part, the flushing part comprises a stainless steel water supply pipe, a stainless steel water ring and a flat nozzle, and the displacement part comprises a lifting plate and a lead screw. By arranging the flushing assembly, water is shunted through a shunting joint to enter two groups of stainless steel water supply pipes, and is discharged from multiple groups of flat nozzle nozzles below to perform back flushing on the stainless steel filter screen, and a lifting plate pushes a stainless steel water ring and the flat nozzle nozzles to gradually descend in the descending process, so that the outer wall surface of the stainless steel filter screen is flushed layer by layer; residues on the outer wall surface of the stainless steel filter screen can be cleaned through single-time backwashing, and the backwashing effect is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, and in particular to a self-cleaning backwash water purifier for filtering the inlet water of a gas-fired boiler. Background Technology

[0002] During corn processing, the water may contain high concentrations of starch particles, fiber debris, and organic suspended matter. These substances are highly viscous and tend to accumulate quickly on the water purifier filter screen. Regular backwashing cannot completely remove them, and long-term accumulation of residues will reduce filtration efficiency.

[0003] For example, the utility model application with application number CN202223012907.9 discloses a backwash water purifier, which includes a cylindrical shell, a sealed bottom shell installed at the bottom of the cylindrical shell, and support legs welded to the four corners of the bottom of the sealed bottom shell. A drain pipe is connected to one side of the outer wall of the cylindrical shell, and a water inlet pipe is connected to one side of the inner wall of the sealed bottom shell.

[0004] Existing water purifier backwashing devices utilize differential pressure sensors. When the pressure difference between the inside and outside of the filter reaches a threshold, cleaning is automatically performed. This method applies the same pressure to the outer wall of the filter, making it difficult to remove sticky residues on the outer wall of the filter.

[0005] Therefore, in view of this, we have studied and improved the existing structure and defects to provide a self-cleaning backwash water purifier for gas boiler inlet water filtration. Utility Model Content

[0006] The purpose of this invention is to provide a self-cleaning backwash water purifier for filtering the inlet water of a gas-fired boiler, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A self-cleaning backwashing water purifier for filtering water inlet of a gas-fired boiler includes a tank and a tank cover. A stainless steel filter screen for filtering water is installed inside the tank cavity. A water inlet pipe is connected through the top of the outer wall of the tank, and a water outlet pipe is connected through the top of the tank cover. A drain pipe is connected through the bottom of the tank, and a solenoid valve is installed between the drain pipe and the tank. A backwashing assembly for backwashing the stainless steel filter screen is also installed inside the tank cavity. The backwashing assembly includes a rinsing section and a displacement section. The rinsing section includes a stainless steel water supply pipe, a stainless steel water ring, and a flat nozzle. The displacement section includes a lifting plate and a lead screw. The lifting plate synchronously drives the stainless steel water supply pipe during the lifting process.

[0009] According to the self-cleaning backwash water purifier for gas boiler inlet water filtration, the tank body and the tank cover are fixed together by screws, the top of the stainless steel filter screen is open, and the stainless steel filter screen is limited and fixed between the tank cover and the tank body cavity.

[0010] According to the self-cleaning backwash water purifier for gas boiler inlet water filtration, a limiting sleeve is fixedly installed at the top of the tank cover, and a stainless steel water supply pipe movably passes through the tank cover and the corresponding limiting sleeve. A sealing rubber ring is provided between the limiting sleeve and the stainless steel water supply pipe.

[0011] According to the self-cleaning backwash water purifier for gas boiler inlet water filtration, the stainless steel water supply pipe is in two sets, which are parallel to each other. The top ends of both sets of stainless steel water supply pipes are fixedly connected to a fixing pile, and the top ends of both sets of stainless steel water supply pipes are connected to a diversion joint.

[0012] According to the self-cleaning backwash water purifier for gas boiler inlet water filtration, the lifting plate is arc-shaped, and both ends of the lifting plate are fixedly connected to corresponding fixed piles.

[0013] According to the self-cleaning backwash water purifier for gas boiler inlet water filtration, a limiting frame is fixedly installed at the top of the tank cover, a lifting plate moves through the cavity of the limiting frame, a lead screw is moved inside the cavity of the limiting frame, the lead screw moves through the lifting plate, the lead screw and the lifting plate are perpendicular to each other, the lead screw and the lifting plate are connected by a thread, a servo motor is fixedly installed at the top of the limiting frame, the output shaft of the servo motor moves through the limiting frame and is fixedly connected to one end of the lead screw.

[0014] According to the self-cleaning backwash water purifier for gas boiler inlet water filtration, two sets of stainless steel water supply pipes are connected to the diversion joint, and the ends of the two sets of stainless steel water supply pipes away from the diversion joint are connected to the stainless steel water ring. The stainless steel water ring is hollow, and the flat nozzles are fixedly installed on the outer wall of the stainless steel water ring. The flat nozzles are arranged in a ring array and the two adjacent sets of flat nozzles are staggered.

[0015] This utility model provides a self-cleaning backwash water purifier for filtering the inlet water of a gas-fired boiler, which has the following beneficial effects:

[0016] (1) The main body of the water purifier is composed of a tank, a tank cover and a stainless steel filter screen. Boiler water enters the tank cavity through the water inlet pipe. The water passes through the stainless steel filter screen and is initially filtered. During corn processing, the water may contain high concentrations of starch particles, fiber debris and organic suspended matter. These substances are highly viscous and easily accumulate on the filter screen. Conventional backwashing cannot completely remove them. Long-term accumulation of residues will reduce the filtration efficiency. This application sets a backwashing component for the stainless steel filter screen in the tank cavity. A flushing section is set up. Water is diverted into two sets of stainless steel water supply pipes through a diversion connector and discharged from multiple sets of flat nozzles below to backwash the stainless steel filter screen. A displacement section is set up. During the descent, the lifting plate pushes the stainless steel water ring and flat nozzles down gradually, thereby rinsing the outer wall of the stainless steel filter screen layer by layer. This achieves the removal of residues on the outer wall of the stainless steel filter screen in a single backwash, effectively improving the backwashing effect.

[0017] (2) By setting up two sets of stainless steel water supply pipes, the two sets of stainless steel water supply pipes are parallel to each other. The top ends of the two sets of stainless steel water supply pipes are connected to a diversion joint. Water is divided into two by the diversion joint and flows into the stainless steel water supply pipes. The top ends of the two sets of stainless steel water supply pipes are fixed through fixed piles. The two ends of the lifting plate are fixedly connected to the corresponding fixed piles. Thus, the lifting plate moves up and down synchronously, driving the fixed piles and stainless steel water supply pipes to move up and down. The lifting plate is set in an arc shape. The lifting plate will not bump into the water outlet pipe during the descent process, ensuring the stable operation of the device.

[0018] (3) By setting two sets of stainless steel water supply pipes connected to the diversion joint, the ends of the two sets of stainless steel water supply pipes away from the diversion joint are connected to the stainless steel water ring. The stainless steel water ring is hollow. The stainless steel water supply pipes drive the stainless steel water ring to move synchronously during the lifting and lowering process. Flat nozzles are fixedly installed on the outer wall of the stainless steel water ring. The flat nozzles are arranged in a ring array and the two adjacent sets of flat nozzles are staggered. The flat nozzles backwash the stainless steel filter screen. The stainless steel water ring washes the stainless steel filter screen layer by layer during the lifting and lowering process, thereby improving the backwashing effect of the device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a self-cleaning backwashing water purifier for gas-fired boiler inlet water filtration according to the present invention.

[0020] Figure 2 This is a top view schematic diagram of a self-cleaning backwashing water purifier for gas boiler inlet water filtration according to the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the displacement part of a self-cleaning backwashing water purifier for gas boiler inlet water filtration according to the present invention.

[0022] Figure 4 This is a schematic diagram showing the positional relationship between the stainless steel filter screen and the tank of a self-cleaning backwashing water purifier for gas-fired boiler inlet water filtration according to the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the flushing section of a self-cleaning backwashing water purifier for gas boiler inlet water filtration according to the present invention.

[0024] Legend:

[0025] 10. Tank body; 11. Tank cover; 12. Inlet pipe; 13. Outlet pipe; 14. Sewage pipe; 15. Solenoid valve; 16. Stainless steel water supply pipe; 17. Displacement part; 18. Fixing pile; 19. Lifting plate; 20. Limit frame; 21. Lead screw; 22. Servo motor; 23. Diverter; 24. Stainless steel filter screen; 25. Stainless steel water ring; 26. Flat nozzle. Detailed Implementation

[0026] like Figure 1-5 As shown: A self-cleaning backwashing water purifier for filtering water inlet of a gas-fired boiler includes a tank 10 and a tank cover 11. A stainless steel filter screen 24 for filtering water is installed inside the cavity of the tank 10. A water inlet pipe 12 is connected through the top of the outer wall of the tank 10. A water outlet pipe 13 is connected through the top of the tank cover 11. A drain pipe 14 is connected through the bottom of the tank 10. A solenoid valve 15 is installed between the drain pipe 14 and the tank 10. A backwashing assembly for backwashing the stainless steel filter screen 24 is also installed inside the cavity of the tank 10. The backwashing assembly includes a rinsing part and a displacement part 17. The rinsing part includes a stainless steel water supply pipe 16, a stainless steel water ring 25 and a flat nozzle 26. The displacement part 17 includes a lifting plate 19 and a screw 21. The lifting plate 19 synchronously drives the stainless steel water supply pipe 16 during the lifting process.

[0027] It should be noted that a water pump and a water tank are also provided on one side of the tank body 10. When the water pump is working, it sends water into the diversion connector 23. The water is diverted through the diversion connector 23 into two sets of stainless steel water supply pipes 16 and discharged from the multiple sets of flat nozzles 26 below to backwash the stainless steel filter screen 24.

[0028] Specifically, the main body of the water purifier is composed of a tank body 10, a tank cover 11, and a stainless steel filter screen 24. Boiler water enters the tank body 10 through the inlet pipe 12. The water passes through the stainless steel filter screen 24 for preliminary filtration. During corn processing, the water may contain high concentrations of starch particles, fiber fragments, and organic suspended matter. These substances are highly viscous and easily accumulate on the filter screen. Conventional backwashing cannot completely remove them, and long-term accumulation of residues will reduce filtration efficiency. This application provides a backwashing assembly for the stainless steel filter screen 24 within the tank body 10. A flushing section is provided, and water is diverted through a diversion connector 23 into two sets of stainless steel water supply pipes 16 and discharged from multiple sets of flat nozzles 26 below to backwash the stainless steel filter screen 24. A displacement section 17 is provided, and the lifting plate 19 pushes the stainless steel water ring 25 and the flat nozzles 26 to gradually descend during the descent, thereby rinsing the outer wall of the stainless steel filter screen 24 layer by layer. This achieves the removal of residues from the outer wall of the stainless steel filter screen 24 in a single backwash, effectively improving the backwashing effect.

[0029] The tank body 10 and the tank cover 11 are fixed together by screws. The top of the stainless steel filter screen 24 is open and the stainless steel filter screen 24 is fixed between the tank cover 11 and the cavity of the tank body 10.

[0030] Specifically, the tank body 10 and the tank cover 11 are fixed with screws. The top of the stainless steel filter screen 24 is open. The stainless steel filter screen 24 is fixed between the tank cover 11 and the cavity of the tank body 10. Water enters the cavity of the stainless steel filter screen 24 through the pores of the stainless steel filter screen 24.

[0031] A limiting sleeve is fixedly installed at the top of the tank lid 11, and a stainless steel water supply pipe 16 movably passes through the tank lid 11 and the corresponding limiting sleeve. A sealing rubber ring is provided between the limiting sleeve and the stainless steel water supply pipe 16.

[0032] Specifically, by fixing a limiting sleeve to the top of the tank cover 11, the stainless steel water supply pipe 16 moves through the tank cover 11 and the corresponding limiting sleeve. During the lifting and lowering process, the stainless steel water supply pipe 16 synchronously drives the stainless steel water ring 25 to move. By setting a sealing rubber ring between the limiting sleeve and the stainless steel water supply pipe 16, the sealing performance of the device is improved.

[0033] There are two sets of stainless steel water supply pipes 16, which are parallel to each other. The top ends of both sets of stainless steel water supply pipes 16 are fixedly connected to fixed posts 18, and the top ends of both sets of stainless steel water supply pipes 16 are connected to a common diversion joint 23. The lifting plate 19 is arc-shaped, and both ends of the lifting plate 19 are fixedly connected to the corresponding fixed posts 18.

[0034] Specifically, two sets of stainless steel water supply pipes 16 are set up, with the two sets of stainless steel water supply pipes 16 in a parallel state. The top ends of the two sets of stainless steel water supply pipes 16 are connected to a diversion connector 23. Water is divided into two streams and flows into the stainless steel water supply pipes 16 through the diversion connector 23. The top ends of the two sets of stainless steel water supply pipes 16 are fixedly connected to the fixed piles 18. The two ends of the lifting plate 19 are fixedly connected to the corresponding fixed piles 18. Thus, the lifting plate 19 moves up and down synchronously, driving the fixed piles 18 and the stainless steel water supply pipes 16 to move up and down. The lifting plate 19 is set in an arc shape, so that it will not collide with the water outlet pipe 13 during the descent, ensuring the stable operation of the device.

[0035] A limiting frame 20 is fixedly installed at the top of the can lid 11. A lifting plate 19 moves through the cavity of the limiting frame 20. A lead screw 21 is movably installed in the cavity of the limiting frame 20 and moves through the lifting plate 19. The lead screw 21 and the lifting plate 19 are perpendicular to each other and are connected by threads. A servo motor 22 is fixedly installed at the top of the limiting frame 20. The output shaft of the servo motor 22 moves through the limiting frame 20 and is fixedly connected to one end of the lead screw 21.

[0036] Specifically, a limiting frame 20 is fixedly installed at the top of the tank lid 11, a lifting plate 19 is movably installed through the cavity of the limiting frame 20, a lead screw 21 is movably installed in the cavity of the limiting frame 20, and the lead screw 21 is movably installed through the lifting plate 19. When the servo motor 22 is working, it drives the lead screw 21 to rotate, so that the lifting plate 19 is raised and lowered. The lifting plate 19 is fixedly connected to the fixed pile 18, and the stainless steel water supply pipe 16 is fixedly installed through the fixed pile 18. During the raising and lowering process, the lifting plate 19 synchronously drives the stainless steel water ring 25 to move.

[0037] Two sets of stainless steel water supply pipes 16 are connected to the diversion joint 23. The ends of the two sets of stainless steel water supply pipes 16 away from the diversion joint 23 are connected to the stainless steel water ring 25. The stainless steel water ring 25 is hollow. The flat nozzles 26 are fixedly installed on the outer wall of the stainless steel water ring 25. The flat nozzles 26 are arranged in a ring array and the two adjacent sets of flat nozzles 26 are staggered.

[0038] Specifically, two sets of stainless steel water supply pipes 16 are connected to the diversion joint 23. The ends of the two sets of stainless steel water supply pipes 16 away from the diversion joint 23 are connected to the stainless steel water ring 25. The stainless steel water ring 25 is hollow. The stainless steel water supply pipes 16 move the stainless steel water ring 25 synchronously during the lifting and lowering process. Flat nozzles 26 are fixedly installed on the outer wall of the stainless steel water ring 25. The flat nozzles 26 are arranged in a ring array and the two adjacent sets of flat nozzles 26 are staggered. The flat nozzles 26 backwash the stainless steel filter screen 24. The stainless steel water ring 25 washes the stainless steel filter screen 24 layer by layer during the lifting and lowering process, thereby improving the backwashing effect of the device.

[0039] The working principle of this self-cleaning backwash water purifier for gas-fired boiler inlet water filtration is as follows: The main body of the water purifier is composed of a tank body 10, a tank cover 11, and a stainless steel filter screen 24. Boiler inlet water enters the chamber of the tank body 10 through the inlet pipe 12. The water undergoes preliminary filtration by passing through the stainless steel filter screen 24. During corn processing, the water may contain high concentrations of starch particles, fiber debris, and organic suspended solids. These substances are highly viscous and easily accumulate rapidly on the filter screen. Conventional backwashing cannot completely remove them, and long-term accumulation of residues will reduce filtration efficiency. This application addresses this issue by using a self-cleaning backwash water purifier for gas-fired boiler inlet water filtration. The body 10 cavity is equipped with a backwashing assembly for backwashing the stainless steel filter screen 24. A backwashing section is provided, and water is diverted through the diverter 23 into two sets of stainless steel water supply pipes 16 and discharged from multiple sets of flat nozzles 26 below to backwash the stainless steel filter screen 24. A displacement section 17 is provided, and the lifting plate 19 pushes the stainless steel water ring 25 and the flat nozzles 26 to gradually descend during the descent process, thereby rinsing the outer wall surface of the stainless steel filter screen 24 layer by layer. This achieves the goal of cleaning the residue on the outer wall surface of the stainless steel filter screen 24 in a single backwash, effectively improving the backwashing effect.

[0040] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A self-cleaning backwash water purifier for gas boiler water inlet filtration, comprising a tank body (10) and a tank cover (11), a stainless steel filter screen (24) for filtering water is arranged in the tank body (10) cavity, characterized in that: The outer wall surface top of the tank body (10) is connected with the water inlet pipe (12), the top of the tank cover (11) is connected with the water outlet pipe (13), the bottom of the tank body (10) is connected with the sewage pipe (14), the electromagnetic valve (15) is arranged between the sewage pipe (14) and the tank body (10), the flushing assembly for backwashing the stainless steel filter screen (24) is further arranged in the tank body (10), the flushing assembly comprises a flushing part and a displacement part (17), the flushing part comprises a stainless steel water supply pipe (16), a stainless steel water ring (25) and a flat nozzle (26), the displacement part (17) comprises a lifting plate (19) and a lead screw (21), and the lifting plate (19) drives the stainless steel water supply pipe (16) synchronously during lifting.

2. The self-cleaning backflushing water filter for gas boiler water inlet filtration according to claim 1, characterized in that: The tank body (10) and the tank cover (11) are fixed by screws, the top of the stainless steel filter screen (24) is open, and the stainless steel filter screen (24) is limitingly fixed between the tank cover (11) and the tank body (10) cavity.

3. The self-cleaning backflushing water filter for gas boiler water inlet filtration according to claim 1, characterized in that: The top of the tank cover (11) is fixedly installed with a limiting sleeve, the stainless steel water supply pipe (16) movably penetrates the tank cover (11) and the corresponding limiting sleeve, and a sealing rubber ring is arranged between the limiting sleeve and the stainless steel water supply pipe (16).

4. The self-cleaning backflushing water filter for gas boiler water inlet filtration according to claim 3, characterized in that: The stainless steel water supply pipe (16) is divided into two groups, the two groups of stainless steel water supply pipes (16) are in parallel with each other, the top of each group of stainless steel water supply pipes (16) is fixedly penetrated with a fixed pile (18), and the top of the two groups of stainless steel water supply pipes (16) is connected with a shunt joint (23).

5. The self-cleaning backflushing water filter for gas boiler water inlet filtration according to claim 1, characterized in that: The lifting plate (19) is arc-shaped, and the two ends of the lifting plate (19) are fixedly connected with the corresponding fixed piles (18).

6. The self-cleaning backflushing water filter for gas boiler water inlet filtration according to claim 1, characterized in that: The top of the tank cover (11) is fixedly installed with a limiting frame (20), the lifting plate (19) movably penetrates the cavity of the limiting frame (20), the lead screw (21) is movably installed in the cavity of the limiting frame (20), the lead screw (21) movably penetrates the lifting plate (19), the lead screw (21) and the lifting plate (19) are in a perpendicular state, the lead screw (21) and the lifting plate (19) are in a threaded connection relationship, the top of the limiting frame (20) is fixedly installed with a servo motor (22), the output shaft of the servo motor (22) movably penetrates the limiting frame (20) and is fixedly connected with one end of the lead screw (21).

7. The self-cleaning backflushing water filter for gas boiler water inlet filtration according to claim 1, characterized in that: The two groups of stainless steel water supply pipes (16) penetrate the shunt joint (23), one end of the two groups of stainless steel water supply pipes (16) away from the shunt joint (23) is connected with the stainless steel water ring (25), the stainless steel water ring (25) is hollow, the flat nozzle (26) is fixedly installed on the outer wall surface of the stainless steel water ring (25), the flat nozzles (26) are arranged in a ring shape and are in a staggered state.

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