Backwash type boiler water treatment filtering device

Abstract

The utility model discloses a backwashing type boiler water treatment filtering device, relates to the field of boiler water filtering devices, and aims to solve the problem of low cleaning efficiency of a filter screen plate caused by the fact that the filter screen plate needs to be manually pulled out of the device for cleaning when the filter screen plate in the filtering device in the prior art is cleaned. A partition plate is fixedly connected to the lower end of the middle in the filter device, a filter screen plate is fixedly connected to the position, at the upper end of the partition plate, in the filter device, a rotary pressure water pipe is arranged between the partition plate and the filter screen plate, and a plurality of nozzles are fixedly connected to the upper end of the rotary pressure water pipe at equal intervals; a water outlet pipe is fixedly connected to the lower end of the middle of the end face of one side of the filtering device, and a blow-off pipe is fixedly connected to the lower end of the middle of the end face of the other side of the filtering device. And the tedious operation of traditional manual disassembly and cleaning is avoided.

Description

Technical Field

[0001] This utility model relates to the field of boiler water filtration devices, specifically a backwashing type boiler water treatment filtration device. Background Technology

[0002] Boiler wastewater refers to wastewater containing various impurities and pollutants generated during boiler operation. Its composition is complex, typically containing high concentrations of dissolved salts (such as calcium, magnesium, chloride ions, and sulfates), suspended solids, grease, heavy metals (such as iron and copper), and chemical residues (such as phosphates and hydrazine). These pollutants originate from natural impurities in the feedwater, decomposition products of chemical treatment agents within the boiler, and corrosion products from metal pipes. Direct discharge of boiler wastewater can lead to eutrophication, soil salinization, and heavy metal pollution. After flocculation treatment, boiler wastewater needs to be filtered through a filtration device.

[0003] For example, authorization announcement number CN221267335U discloses a boiler water filtration device, specifically relating to the technical field of boiler water filtration equipment. The device includes a main body with a boiler mixing tank at its top. A placement rod is welded to the inner wall of the main body. This invention features a telescopic locking rod on the inner wall of the main body. When boiler water is filtered through the device, to improve the filter screen's effectiveness over long-term use and prevent surface damage that could reduce its efficiency, a bolt can be rotated. The nut then causes the bolt to slide from the inner wall of the slot, pulling the telescopic rod. This, connected by a spring, prevents contact between the telescopic locking rod and the connecting rod. The connecting block is then pulled, causing the filter screen to slide along the outer wall of the placement rod until it slides out of the device, facilitating easy disassembly and replacement of the filter screen.

[0004] In the aforementioned technology, the filter screen inside the filtration device needs to be manually pulled out of the device for cleaning, resulting in low cleaning efficiency. Therefore, there is an urgent market need to develop a backwashing boiler water treatment filtration device to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a backwashing boiler water treatment filtration device to solve the problem mentioned in the background art that the filter screen inside the filtration device needs to be manually pulled out of the device for cleaning, resulting in low cleaning efficiency of the filter screen.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a backwashing boiler water treatment filtration device, comprising a filtration device, wherein a sewage inlet pipe is fixedly installed at the upper end of one side end face of the filtration device, a partition plate is fixedly connected to the lower middle part of the interior of the filtration device, a filter screen is fixedly connected to the upper end of the partition plate inside the filtration device, a rotating pressure water pipe is provided between the partition plate and the filter screen, a plurality of nozzles are fixedly connected at equal intervals at the upper end of the rotating pressure water pipe, a water outlet pipe is fixedly connected to the lower middle part of one side end face of the filtration device, and a sewage discharge pipe is fixedly connected to the lower middle part of the other side end face of the filtration device.

[0007] Preferably, a limiting tube is fixedly connected to the middle of the partition plate, a rotating tube is fixedly connected to the middle of the lower end of the rotating pressure water pipe, the lower end of the rotating tube extends through the inside of the limiting tube out of the lower end of the partition plate and is connected to a water supply pipe, and a second gear is fixedly connected to the lower end of the partition plate and on the outer end face of the limiting tube.

[0008] Preferably, a first drive motor is fixedly connected to the lower end face inside the filter device, and a first gear is fixedly connected to the output shaft of the first drive motor, with the first gear meshing with the teeth of a second gear.

[0009] Preferably, the lower end of the limiting tube is connected to the upper end of the water supply pipe via a rotary joint, and a booster pump is fixedly connected to one end face of the filter device on one side of the water supply pipe.

[0010] Preferably, the water outlet pipe is connected to the partition plate and filter screen inside the filter device, and the sewage pipe is connected to the upper end of the filter screen inside the filter device. A first control valve and a second control valve are fixedly connected to the water outlet pipe and the sewage pipe, respectively.

[0011] Preferably, a rotating shaft is rotatably connected inside the filter device and at the middle of the upper end of the filter screen, and scraper rods are fixedly connected to both sides of the lower end of the rotating shaft.

[0012] Preferably, a drive device is fixedly connected to the middle of the upper end face of the filter device, a second drive motor is fixedly installed inside the drive device, and the upper end of the rotating shaft extends into the drive device and is connected to the output shaft of the second drive motor through a coupling.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, by setting a backwashing mechanism consisting of a rotatable high-pressure nozzle and a booster pump, the automatic cleaning function of the filter screen is realized, avoiding the tedious operation of traditional manual disassembly and cleaning, and significantly improving the maintenance efficiency and cleaning effect of the filter device.

[0015] (2) In this utility model, the design of the scraper and the rotating pressure water pipe working together can clean the impurities on the surface of the filter screen in real time during the filtration process, and can also help loosen stubborn dirt during backwashing. The dual cleaning mechanism effectively prevents the filter screen from clogging and extends the service life of the filter screen.

[0016] (3) In this utility model, the design of driving the rotating pressure water pipe to rotate by the drive motor enables the nozzle to rinse the filter screen plate in all directions without dead angles. Combined with the rapid sewage discharge function of the drain pipe, the thoroughness and efficiency of the cleaning process are ensured. Attached Figure Description

[0017] Figure 1 This is a front view of a backwashing boiler water treatment filtration device according to the present invention.

[0018] Figure 2 This is a front sectional view of the present invention;

[0019] Figure 3 This is a side sectional view of the present invention;

[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.

[0021] In the diagram: 1. Filter device; 101. Sewage inlet pipe; 102. Divider plate; 103. Limiting pipe; 104. First drive motor; 105. First gear; 106. Filter screen; 2. Rotary pressure water pipe; 201. Nozzle; 202. Rotating pipe; 203. Second gear; 3. Water supply pipe; 301. Rotary joint; 302. Booster pump; 4. Water outlet pipe; 401. First control valve; 5. Sewage discharge pipe; 501. Second control valve; 6. Rotating shaft; 601. Scraper; 7. Drive device; 701. Second drive motor. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4This utility model provides an embodiment of a backwashing boiler water treatment filtration device, comprising a filtration device 1, a sewage inlet pipe 101 fixedly installed at the upper end of one side end face of the filtration device 1, a partition plate 102 fixedly connected to the lower end of the middle part of the filtration device 1, a filter screen plate 106 fixedly connected to the upper end of the partition plate 102 inside the filtration device 1, a rotating pressure water pipe 2 arranged between the partition plate 102 and the filter screen plate 106, a plurality of nozzles 201 fixedly connected at equal intervals at the upper end of the rotating pressure water pipe 2, and a limiter fixedly connected in the middle of the partition plate 102. Pipe 103, a rotating pipe 202 is fixedly connected to the lower middle of the rotating pressure water pipe 2. The lower end of the rotating pipe 202 extends through the interior of the limiting pipe 103, out to the lower end of the partition plate 102, and is connected to the water supply pipe 3. The lower end of the limiting pipe 103 and the upper end of the water supply pipe 3 are connected by a rotating joint 301. One side of the water supply pipe 3 extends out to one end face of the filter device 1 and is fixedly connected to the booster pump 302. The lower middle of one end face of the filter device 1 is fixedly connected to the outlet pipe 4. The lower middle of the other end face of the filter device 1 is fixedly connected to the drain pipe 5. The outlet pipe 4 and the filter device 1 The internal partition plate 102 and filter screen plate 106 are connected. The drain pipe 5 is connected to the inside of the filter device 1 and the upper end of the filter screen plate 106. The outlet pipe 4 and the drain pipe 5 are respectively fixedly connected to a first control valve 401 and a second control valve 501. When filtering boiler water, the second control valve 501 is closed and the first control valve 401 is opened. Boiler water is injected into the filter device 1 through the sewage inlet pipe 101, filtered by the filter screen plate 106, and discharged through the outlet pipe 4. When the upper end of the filter screen plate 106 needs to be cleaned, the second control valve 501 is opened. When the first control valve 401 is closed, the booster pump 302 pressurizes the water supply pipe 3 to supply water, which in turn pressurizes the water supply pipe 3 to supply water to the rotating pressure water pipe 2 and sprays it upward from multiple nozzles 201. As the rotating pressure water pipe 2 rotates, it synchronously drives the multiple nozzles 201 to rotate, so that the multiple nozzles 201 perform reverse rinsing on the filter screen plate 106. When the rinsing water level at the upper end of the partition plate 102 rises and submerges the filter screen plate 106, the rinsing water carries the impurities separated on the filter screen plate 106 through the drain pipe 5 to discharge, thus realizing the reverse rinsing of the filter screen plate 106.

[0024] Please see Figure 2 and Figure 4 A second gear 203 is fixedly connected to the lower end of the partition plate 102 and the outer end face of the limiting tube 103. A first drive motor 104 is fixedly connected to the lower end face of the filter device 1. A first gear 105 is fixedly connected to the output shaft of the first drive motor 104. The first gear 105 meshes with the teeth of the second gear 203. The first drive motor 104 drives the limiting tube 103 to rotate, thereby causing the limiting tube 103 to drive the rotating pressure water pipe 2 to rotate.

[0025] Please see Figure 2 and Figure 3 Inside the filter device 1, a rotating shaft 6 is rotatably connected to the upper center of the filter screen 106. Scraper rods 601 are fixedly connected to both sides of the lower end of the rotating shaft 6. A drive device 7 is fixedly connected to the upper center of the filter device 1. A second drive motor 701 is fixedly installed inside the drive device 7. The upper end of the rotating shaft 6 extends into the drive device 7 and is connected to the output shaft of the second drive motor 701 through a coupling. When the filter screen 106 filters the boiler water, the second drive motor 701 drives the scraper rods 601 to rotate and scrape the upper end of the filter screen 106 to prevent impurities from clogging the filter screen 106. When the filter screen 106 is backwashed, the scraper rods 601 rotate to agitate the impurities at the upper end of the filter screen 106, causing the impurities to disperse into the washing water and be discharged through the drain pipe 5.

[0026] Working Principle: During operation, boiler wastewater enters the filter device 1 through the wastewater inlet pipe 101. It first flows through the filter screen 106 for filtration, where impurities are trapped above the screen. The purified water passes through the filter screen 106 into the space below the partition plate 102 and is discharged from the outlet pipe 4 through the opened first control valve 401. During filtration, the second drive motor 701 drives the rotating shaft 6 and scraper 601 to rotate, constantly scraping away deposits on the surface of the filter screen 106 to prevent impurities from clogging the filter holes. When cleaning is required, the first control valve 401 is closed, and the second control valve 501 and booster pump 302 are opened. High-pressure water enters the rotary pressure water pipe 2 through the water supply pipe 3 and the rotary joint 301. Simultaneously, the first drive motor 104, through the meshing transmission of the first gear 105 and the second gear 203, drives the rotating pressure water pipe 2 to rotate the nozzle 201, performing all-round high-pressure backwashing on the filter screen 106. During the rinsing process, the scraper 601 continues to rotate and agitate, causing the impurities attached to the filter screen 106 to be fully peeled off and suspended in the water. As the rinsing water level rises, the mixture of sewage and impurities is finally discharged through the drain pipe 5, completing the automatic cleaning process.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A backwashing boiler water treatment filtration device, comprising a filtration device (1), characterized in that: A sewage inlet pipe (101) is fixedly installed on the upper end of one side of the filter device (1). A partition plate (102) is fixedly connected to the lower middle part of the filter device (1). A filter screen plate (106) is fixedly connected to the upper end of the partition plate (102) inside the filter device (1). A rotating pressure water pipe (2) is provided between the partition plate (102) and the filter screen plate (106). Multiple nozzles (201) are fixedly connected at equal intervals on the upper end of the rotating pressure water pipe (2). A water outlet pipe (4) is fixedly connected to the lower middle part of one side of the filter device (1). A sewage discharge pipe (5) is fixedly connected to the lower middle part of the other side of the filter device (1).

2. The backwashing boiler water treatment filtration device according to claim 1, characterized in that: A limiting tube (103) is fixedly connected to the middle of the partition plate (102). A rotating tube (202) is fixedly connected to the middle of the lower end of the rotating pressure water pipe (2). The lower end of the rotating tube (202) extends through the interior of the limiting tube (103) out of the lower end of the partition plate (102) and is connected to a water supply pipe (3). A second gear (203) is fixedly connected to the lower end of the partition plate (102) and on the outer end face of the limiting tube (103).

3. The backwashing boiler water treatment filtration device according to claim 2, characterized in that: The filter device (1) has a first drive motor (104) fixedly connected to its lower end face. A first gear (105) is fixedly connected to the output shaft of the first drive motor (104). The first gear (105) meshes with the teeth of the second gear (203).

4. The backwashing boiler water treatment filtration device according to claim 3, characterized in that: The lower end of the limiting tube (103) is connected to the upper end of the water supply pipe (3) via a rotary joint (301). The water supply pipe (3) extends out of one side of the filter device (1) and is fixedly connected to a booster pump (302).

5. The backwashing boiler water treatment filtration device according to claim 1, characterized in that: The water outlet pipe (4) is connected to the partition plate (102) and filter screen plate (106) inside the filter device (1), and the sewage pipe (5) is connected to the upper end of the filter screen plate (106) inside the filter device (1). A first control valve (401) and a second control valve (501) are fixedly connected to the water outlet pipe (4) and the sewage pipe (5), respectively.

6. The backwashing boiler water treatment filtration device according to claim 1, characterized in that: The filter device (1) has a rotating shaft (6) rotatably connected inside and at the middle of the upper end of the filter screen (106), and scraper rods (601) are fixedly connected to both sides of the lower end of the rotating shaft (6).

7. A backwashing boiler water treatment filtration device according to claim 6, characterized in that: The filter device (1) has a drive device (7) fixedly connected to the middle of its upper end face. The drive device (7) has a second drive motor (701) fixedly installed inside it. The upper end of the rotating shaft (6) extends into the drive device (7) and is connected to the output shaft of the second drive motor (701) through a coupling.

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