Backwash water filter with impurity crushing equipment for thermal power plant

Abstract

The invention provides a backwashing water filter with impurity crushing equipment for a thermal power plant, and relates to the technical field of water filters, the backwashing water filter comprises a filter box body, a blow-off pipe I is mounted at the bottom end of the filter box body, an isolation pipe I is mounted at one end of the blow-off pipe I, and a crushing box is mounted at one end of the isolation pipe I; a driving roller and a driven roller are rotationally installed in the smashing box, smashing rotors are installed on the driving roller and the driven roller, a synchronous belt is installed at one end of the driving roller and one end of the driven roller, a second blow-off pipe is installed at one end of the smashing box, a water inlet and a water outlet are formed in the filter box, and a cycloidal pin gear speed reducer and a speed reduction motor are installed at the top end of the filter box. A plurality of supporting legs are mounted at the bottom end of the filter box body, and a pressure difference controller is mounted on the filter box body. According to the water filter, impurities are crushed through the pair of crushing rotors, so that the effect of preventing a blow-off pipeline from being blocked is achieved, and the filtering efficiency of the water filter is improved.

Description

Technical Field

[0001] This invention belongs to the field of water filter technology, and more specifically, it relates to a backwashing water filter for thermal power plants with an impurity crushing device. Background Technology

[0002] A backwash water filter is a device used in water treatment, primarily to remove suspended solids and impurities from water to improve water quality and meet specific water treatment requirements. Its working principle involves a periodic backwashing process that removes accumulated dirt and impurities from the filter screen, thereby ensuring the normal operation and filtration efficiency of the water filter.

[0003] Based on the above, the inventors have discovered the following problems: During the use of existing backwash water filters, due to the size, flow rate and structure of the electric or manual drain valve, large-volume impurities in the discharged impurities will slowly accumulate, and the solid impurities filtered from the liquid will still clog the drain pipe, causing the backwash function to be lost, which in turn leads to a significant reduction in the filtration effect of the water filter and seriously threatens the stability and safety of the unit operation.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a backwash water filter with impurity crushing equipment for thermal power plants, in order to achieve a more practical purpose. Summary of the Invention

[0005] The purpose and effectiveness of the backwash water filter with impurity crushing equipment in a thermal power plant, as described in this invention, are achieved by the following specific technical means:

[0006] A backwash water filter with impurity crushing equipment for thermal power plants includes a filter housing. A first drain pipe is installed at the bottom of the filter housing. A first isolation pipe is installed at one end of the first drain pipe. A crushing box is installed at one end of the first isolation pipe. A driving roller and a driven roller are rotatably installed inside the crushing box. A crushing rotor is installed on both the driving roller and the driven roller. A synchronous belt is installed at one end of the driving roller and the driven roller. A second drain pipe is installed at one end of the crushing box. The filter housing has an inlet and an outlet. A cycloidal pinwheel reducer and a geared motor are installed at the top of the filter housing. Several support feet are installed at the bottom of the filter housing. A differential pressure controller is installed on the filter housing.

[0007] Furthermore, a drive motor is installed on the crushing box, and the output shaft of the drive motor is connected to the top of the drive roller via a coupling.

[0008] Furthermore, an isolation pipe second is installed on one side of the isolation pipe first, one end of the isolation pipe second is connected to the sewage pipe second, and an isolation pipe third is installed at the center of the isolation pipe second.

[0009] Furthermore, a sewage discharge valve is installed on the sewage discharge pipe one at the connection end of the isolation pipe one, an isolation valve one is installed on the isolation pipe one at the connection end of the crushing box, an isolation valve two is installed on the isolation pipe three at the connection end of the isolation pipe two, and an isolation valve three is installed on the isolation pipe two at the connection end of the sewage discharge pipe two.

[0010] Furthermore, several locking bolts are installed at both ends of the crushing box, and the two ends of the crushing box are respectively connected to the isolation pipe one and the sewage pipe two through the locking bolts.

[0011] Furthermore, the water inlet is located on one side of the bottom of the filter housing, and the water outlet is located on one side of the top of the filter housing.

[0012] Furthermore, the processing chamber of the filter housing is equipped with a backwash pipe and a tray, and a number of filter elements are installed on the tray. The backwash pipe passes through the tray and is rotatably connected to the processing chamber.

[0013] Furthermore, the output shaft of the geared motor is connected to the input shaft of the cycloidal pinwheel reducer via a coupling, and the output shaft of the cycloidal pinwheel reducer is connected to the backwash pipe via a coupling.

[0014] Furthermore, the backwash filter also includes a scraper ring, a scraper column, and a motor;

[0015] The scraper ring is movably sleeved on the outer circumferential surface of the filter element, and the scraper column is disposed on the filter housing;

[0016] A rotatable driving gear is provided on the outer circumference of the scraper, and a driven gear is provided on the outer circumference of the collar. The driving gear meshes with the driven gear.

[0017] Furthermore, the scraper ring is connected to a fixed ring, and the driven gear is disposed on the fixed ring;

[0018] The scraper ring is equipped with a brush inside.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The drive motor drives the active roller to rotate, which in turn drives the synchronous belt, which in turn drives the driven roller to follow the active roller. A pair of crushing rotors rotate simultaneously, crushing impurities, thereby preventing the sewage pipe from getting clogged and improving the filtration efficiency of the water filter.

[0021] By using isolation pipe 1, isolation valve 1, isolation valve 2, isolation valve 3, isolation pipe 2, and sewage pipe 2 in coordination, isolation valve 1 and isolation valve 3 are closed, and isolation valve 2 is opened. Sewage enters isolation pipe 2 from isolation pipe 1 and then exits through isolation pipe 3. This allows for the rapid disconnection of the main flow path when maintenance or repair of the pulverizing box is required, ensuring operation without affecting the overall water treatment system and improving practicality. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a backwashing water filter with impurity crushing equipment in a thermal power plant according to the present invention.

[0023] Figure 2 This is one of the cross-sectional schematic diagrams of a backwash water filter with impurity crushing equipment in a thermal power plant according to the present invention.

[0024] Figure 3 This is the second cross-sectional schematic diagram of a backwashing water filter with impurity crushing equipment in a thermal power plant according to the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of a backwashing water filter housing with impurity crushing equipment in a thermal power plant according to the present invention.

[0026] Figure 5 yes Figure 4 A magnified view of a portion of the image.

[0027] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0028] 1-Filter housing; 2-Inlet; 3-Outlet; 4-Cycloidal pinwheel reducer; 5-Gear motor; 6-Support foot; 7-Drain pipe one; 8-Isolation pipe one; 9-Isolation pipe two; 10-Isolation pipe three; 11-Drain pipe two; 12-Grinding box; 13-Isolation valve one; 14-Isolation valve two; 15-Isolation valve three; 16-Drive roller; 17-Driven roller; 18-Synchronous belt; 19-Grinding rotor; 20-Drive motor; 21-Locking bolt; 22-Backwash pipe; 23-Panel; 24-Filter element; 25-Differential pressure controller; 26-Drain valve; 27-Scraper ring; 28-Fixing ring; 29-Passive gear; 30-Scraper column; 31-Drive gear. Detailed Implementation

[0029] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0030] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Example:

[0033] As attached Figure 1 To be continued Figure 5 As shown:

[0034] This invention provides a backwash water filter for a thermal power plant with an impurity crushing device, comprising a filter housing 1, a drain pipe 7 installed at the bottom of the filter housing 1, an isolation pipe 8 installed at one end of the drain pipe 7, a crushing box 12 installed at one end of the isolation pipe 8, a drive roller 16 and a driven roller 17 rotatably mounted inside the crushing box 12, a crushing rotor 19 mounted on both the drive roller 16 and the driven roller 17, a synchronous belt 18 installed at one end of the drive roller 16 and the driven roller 17, a drain pipe 11 installed at one end of the crushing box 12, an inlet 2 and an outlet 3 provided on the filter housing 1, a cycloidal pinwheel reducer 4 and a geared motor 5 installed at the top of the filter housing 1, several support feet 6 installed at the bottom of the filter housing 1, and a differential pressure controller 25 installed on the filter housing 1.

[0035] The crushing box 12 is equipped with a drive motor 20. The output shaft of the drive motor 20 is connected to the top of the drive roller 16 via a coupling. The drive motor 20 drives the drive roller 16 to rotate, the drive roller 16 drives the synchronous belt 18, and the synchronous belt 18 drives the driven roller 17 to rotate with the drive roller 16. A pair of crushing rotors 19 rotate simultaneously to crush impurities, thereby preventing the sewage pipe from becoming blocked.

[0036] Among them, an isolation pipe 2 9 is installed on one side of the isolation pipe 1 8, one end of the isolation pipe 2 9 is connected to the sewage pipe 2 11, and an isolation pipe 3 10 is installed at the center of the isolation pipe 2 9.

[0037] Among them, a sewage valve 26 is installed on the sewage discharge pipe 7 at the connection end of the isolation pipe 8, an isolation valve 13 is installed on the isolation pipe 8 at the connection end of the pulverizing box 12, an isolation valve 24 is installed on the isolation pipe 30 at the connection end of the isolation pipe 29, and an isolation valve 35 is installed on the isolation pipe 29 at the connection end of the sewage discharge pipe 21. Through the coordinated use of the isolation pipe 8, isolation valve 13, isolation valve 24, isolation valve 35, isolation pipe 29, and sewage discharge pipe 21, the isolation valve 13 and isolation valve 315 are closed, and the isolation valve 214 is opened. Sewage flows from the isolation pipe 8 into the isolation pipe 29, and then into the isolation pipe 310 for discharge. This allows for the quick cutting off of the main flow path when maintenance or repair of the pulverizing box 12 is required, ensuring operation without affecting the overall water treatment system and improving practicality.

[0038] The crushing box 12 is equipped with several locking bolts 21 at both ends. The two ends of the crushing box 12 are connected to the isolation pipe 8 and the sewage pipe 11 respectively through the locking bolts 21. The use of the locking bolts 21 facilitates the disassembly and maintenance of the crushing box 12.

[0039] The inlet 2 is located at the bottom side of the filter housing 1, and the outlet 3 is located at the top side of the filter housing 1.

[0040] The filter housing 1 has a backwash pipe 22 and a tray 23 installed in its treatment chamber. Several filter elements 24 are installed on the tray 23. The backwash pipe 22 passes through the tray 23 and is rotatably connected to the treatment chamber.

[0041] The output shaft of the geared motor 5 is connected to the input shaft of the cycloidal pinwheel reducer 4 via a coupling, and the output shaft of the cycloidal pinwheel reducer 4 is connected to the backwash pipe 22 via a coupling.

[0042] Meanwhile, in order to ensure the cleanliness of the filter element 24 in the filter box 1, such as Figure 4 , 5 As shown, where Figure 4This refers to the area on the tray 23 and below the top of the filter housing 1 in this embodiment, formed after removing components such as the top cover that obstruct the view. In this embodiment, a scraper ring 27 and a scraper column 30 are provided to clean the filter element 24. The collar is movably fitted onto the filter element 24. In this embodiment, each filter element 24 is provided with a collar, and these filter elements 24 are fixedly connected by a fixing ring 28 to ensure that the filter element 24 can be cleaned simultaneously during cleaning, avoiding forgetting to clean the filter element 24 and causing the filtration effect to deteriorate due to inversion.

[0043] The scraper column 30 is fixedly mounted on the filter box 1. Specifically, the scraper column 30 is fixedly mounted on the support plate 23. A rotatable drive gear 31 is mounted on the scraper column 30, and a driven gear 29 is mounted on the outer circumference of the fixed ring 28. The driven gear 29 meshes with the drive gear 31. When the drive gear 31 rotates, it drives the driven gear 29 to move, thereby moving the scraper column 30 up and down along the filter element 24 to clean the filter element 24.

[0044] Meanwhile, a cleaning motor is installed at the upper end of the scraper column 30. The cleaning motor is fixedly connected to the upper end of the filter housing 1. The output shaft of the cleaning motor is connected to the drive gear 31. The cleaning motor rotates through the output shaft, which drives the drive gear 31 to rotate. The drive gear 31 drives the driven gear 29 to rotate. The driven gear 29 drives the fixed ring 28 to move along the filter element 24 to clean the filter element 24. In order to achieve a better cleaning effect, a brush is installed inside the scraper ring 27.

[0045] Meanwhile, in order to increase the stability of the equipment movement, a support column is provided on the scraper column 30. The support column is fixedly connected to the support plate 23 to support the scraper column 30. At the same time, a limit slider is provided on the fixed ring 28. A limit groove is opened on the side wall of the filter box 1. The limit slider is movably set in the limit groove to limit the movement of the fixed ring 28 and ensure that the fixed ring 28 can move up and down along the filter element 24.

[0046] The specific usage and function of this embodiment are as follows:

[0047] First, check the integrity of the device. It can only be used after confirming that there are no errors. When in use, the cycloidal pinwheel reducer 4 and the geared motor 5 are set on the top of the filter box 1 to form the power drive unit of the water filter. Water from the inlet 2 flows from the inside to the outside of all the filter elements 24. Impurities are trapped inside the filter elements 24. As the dirt on the inner surface of the filter elements 24 increases, the pressure difference between the inlet and outlet of the equipment increases. When the pressure difference reaches the set value, the pressure difference controller 25 is triggered, the cycloidal pinwheel reducer 4 and the geared motor 5 rotate, and drive the backwash pipe 22 to rotate to backwash the filter elements 24. At the same time, the cleaning motor starts, and the active gear 31 and the passive gear 30 cooperate to drive the scraper ring 27 to clean the filter elements 24 up and down through the fixed ring 28.

[0048] When the drain valve 26 is opened, the drive motor 20 starts, driving the active roller 16 to rotate. The active roller 16 drives the synchronous belt 18, which in turn drives the driven roller 17 to follow the active roller 16. A pair of crushing rotors 19 rotate simultaneously, crushing impurities and rinsing the impurities on the inner surface of the filter element 24. After crushing, the impurities are discharged, preventing them from clogging the drain pipe. Through the coordinated use of isolation pipe 1 8, isolation valve 1 13, isolation valve 2 14, isolation valve 3 15, isolation pipe 2 9, and drain pipe 2 11, isolation valve 1 13 and isolation valve 3 15 are closed, and isolation valve 2 14 is opened. Wastewater enters isolation pipe 2 9 from isolation pipe 1 8 and then exits through isolation pipe 3 10. This allows for quick disconnection of the main flow path when maintenance or repair of the crushing box 12 is required, ensuring operation without affecting the overall water treatment system and improving practicality. This device has a novel overall design and simple structure, making it worthy of widespread promotion and use.

[0049] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A backwash water filter for a thermal power plant with an impurity crushing device, comprising a filter housing (1), characterized in that: The bottom of the filter housing (1) is equipped with a first drain pipe (7), one end of the first drain pipe (7) is equipped with a first isolation pipe (8), one end of the first isolation pipe (8) is equipped with a crushing box (12), a driving roller (16) and a driven roller (17) are rotatably installed inside the crushing box (12), a crushing rotor (19) is installed on both the driving roller (16) and the driven roller (17), a synchronous belt (18) is installed on one end of the driving roller (16) and the driven roller (17), a second drain pipe (11) is installed on one end of the crushing box (12), the filter housing (1) is provided with an inlet (2) and an outlet (3), a cycloidal pinwheel reducer (4) and a geared motor (5) are installed on the top of the filter housing (1), a number of support feet (6) are installed on the bottom of the filter housing (1), and a differential pressure controller (25) is installed on the filter housing (1).

2. The backwash water filter with impurity crushing equipment in a thermal power plant as described in claim 1, characterized in that: The crushing box (12) is equipped with a drive motor (20), and the output shaft of the drive motor (20) is connected to the top of the drive roller (16) via a coupling.

3. The backwash water filter with impurity crushing equipment in a thermal power plant as described in claim 2, characterized in that: An isolation pipe 2 (9) is installed on one side of the isolation pipe 1 (8), one end of the isolation pipe 2 (9) is connected to the sewage pipe 2 (11), and an isolation pipe 3 (10) is installed at the center of the isolation pipe 2 (9).

4. The backwash water filter with impurity crushing equipment in a thermal power plant as described in claim 3, characterized in that: A drain valve (26) is installed on the drain pipe 1 (7) at the connection end of the isolation pipe 1 (8), an isolation valve 1 (13) is installed on the isolation pipe 1 (8) at the connection end of the crushing box (12), an isolation valve 2 (14) is installed on the isolation pipe 3 (10) at the connection end of the isolation pipe 2 (9), and an isolation valve 3 (15) is installed on the isolation pipe 2 (9) at the connection end of the drain pipe 2 (11).

5. The backwash water filter with impurity crushing equipment in a thermal power plant as described in claim 4, characterized in that: Both ends of the crushing box (12) are equipped with several locking bolts (21), and the two ends of the crushing box (12) are connected to the isolation pipe one (8) and the sewage pipe two (11) respectively through the locking bolts (21).

6. The backwash water filter with impurity crushing equipment in a thermal power plant as described in claim 1, characterized in that: The inlet (2) is located at the bottom side of the filter box (1), and the outlet (3) is located at the top side of the filter box (1).

7. The backwash water filter with impurity crushing equipment for thermal power plants as described in claim 6, characterized in that: The filter housing (1) has a backwash pipe (22) and a tray (23) installed in its processing chamber. Several filter elements (24) are installed on the tray (23). The backwash pipe (22) passes through the tray (23) and is rotatably connected to the processing chamber.

8. The backwash water filter with impurity crushing equipment in a thermal power plant as described in claim 7, characterized in that: The output shaft of the geared motor (5) is connected to the input shaft of the cycloidal pinwheel reducer (4) via a coupling, and the output shaft of the cycloidal pinwheel reducer (4) is connected to the backwash pipe (22) via a coupling.

9. The backwash water filter with impurity crushing equipment in a thermal power plant as described in claim 7, characterized in that: It also includes a scraper ring (27) and a scraper column (30); The scraper ring (27) is movably sleeved on the outer circumferential surface of the filter element (24), and the scraper column (30) is disposed on the filter housing (1); A rotatable drive gear (31) is provided on the outer circumferential surface of the scraper column (30), and a driven gear (29) is provided on the outer circumferential surface of the scraper ring (27). The drive gear (31) meshes with the driven gear (29).

10. The backwash water filter with impurity crushing equipment in a thermal power plant as described in claim 9, characterized in that: The scraper ring (27) is connected to a fixed ring (28), and the driven gear (29) is disposed on the fixed ring (28); The scraper ring (27) is equipped with a brush inside.

Images