Circulating water filtering device

Abstract

The utility model relates to the technical field of circulating water filtering equipment, in particular to a circulating water filtering device. Comprising a brush and a transmission mechanism, a brush handle of the brush is fixed to the transmission mechanism, bristles of the brush make contact with the filter screen, and the brush handle of the brush makes contact with the filter screen. The transmission mechanism drives the brush to move along the end face of the filter screen to brush the filter screen, the lower side of the filter box communicates with a discharging pipe, a first valve is arranged on the discharging pipe, and the discharging pipe is located on the side, close to the water inlet pipe, of the filter screen. The brushing assembly drives the brush to brush the side, facing the water inlet pipe, of the filter screen, impurities on the filter screen are brushed down, the impurities falling along the filter screen can fall into the discharging pipe to be discharged, normal work of the filtering device is guaranteed, and the service life of the filtering device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of circulating water filtration equipment, in particular to a circulating water filtration device. Background Art

[0002] Industrial circulating water is mainly used to absorb excessive heat in equipment, playing a role in cooling the equipment. During the continuous circulation of the circulating water, impurities (such as water body suspended solids and particulate matter) will be carried, resulting in the blockage of the return water branch pipe and the spraying device when the circulating water enters the circulating water system.

[0003] At this time, it is necessary to filter the circulating water. Most of the existing circulating water filtration devices add a filter screen to filter the circulating water. However, after long-term use, the impurities filtered out by the filter screen are easily adsorbed on the filter screen, thus blocking the filter screen, affecting the normal operation of the filtration device, and reducing the service life of the filtration device. Summary of the Invention

[0004] In order to solve the problem that the filter screen in the existing circulating water filtration device is easily blocked, the utility model provides a circulating water filtration device. A brushing assembly drives a brush to brush the side of the filter screen facing the water inlet pipe, brushing off the impurities on the filter screen. The impurities falling along the filter screen will fall into the blanking pipe and be discharged, ensuring the normal operation of the filtration device and improving the service life of the filtration device.

[0005] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A circulating water filtration device includes a filtration tank. An inlet pipe and an outlet pipe are communicated with the filtration tank. A filter screen is arranged inside the filtration tank. The inlet pipe is located on one side of the filter screen, and the outlet pipe is located on the other side of the filter screen. A brushing assembly is arranged inside the filtration tank. The brushing assembly is located on the side of the filter screen close to the inlet pipe. The brushing assembly includes a brush and a transmission mechanism. The brush handle of the brush is fixed on the transmission mechanism, and the bristles of the brush contact the filter screen. The transmission mechanism drives the brush to move along the end face of the filter screen to brush the filter screen. A blanking pipe is communicated with the lower side of the filtration tank. A first valve is arranged on the blanking pipe. The blanking pipe is located on the side of the filter screen close to the inlet pipe. The lower end of the filter screen contacts one side of the feed inlet of the blanking pipe, improving the filtration effect of the filtration device.

[0007] Further, second valves are arranged on both the inlet pipe and the outlet pipe.

[0008] Further, transmission mechanisms are arranged on both sides inside the filtration tank. One of the transmission mechanisms is in transmission connection with an external power mechanism. The transmission mechanism not connected to the external power mechanism is a guiding and limiting mechanism for the brush, realizing the stable movement of the brush.

[0009] Furthermore, the transmission mechanism includes a transmission belt, a driving wheel and a driven wheel. The fixed shafts of the driving wheel and the driven wheel are rotatably connected to the inner side wall of the filter box. The transmission belt is sleeved outside the driving wheel and the driven wheel. The brush handle of the brush is fixed on the transmission belt. The end of the fixed shaft of the driving wheel of the transmission mechanism on one side inside the filter box extends out of the filter box and a first bevel gear is fixed to the end thereof. The power mechanism is installed on the outer side wall of the filter box, and a second bevel gear is fixed to the end of the output end of the power mechanism. The first bevel gear is in transmission connection with the second bevel gear. The outer periphery of the transmission belt extends out of the driving wheel and the driven wheel to prevent the brush fixed on the transmission belt from having a position interference with the driving wheel and the driven wheel when moving; the gap between the driving wheel and the driven wheel and the upper and lower side walls inside the filter box is smaller than the width of the brush handle of the brush to prevent the brush from having a position interference with the filter box when moving.

[0010] Furthermore, the filter screen is inclined, and the driving wheel and the driven wheel are arranged vertically and offset so that the inclined direction of the transmission belt is consistent with the inclined direction of the filter screen.

[0011] Furthermore, the power mechanism is a servo motor.

[0012] Furthermore, a bent portion is provided at the upper end of the filter screen, and the bent portion is closed. There are no filter holes on the bent portion, so that impurities will not be retained.

[0013] Furthermore, an observation port is provided on the upper side of the filter box. The water flow rate and the accumulation of debris inside the device can be noted at any time to facilitate the cleaning of its interior.

[0014] Furthermore, a cleaning port is provided on one side of the filter box, and a sealing plate is detachably connected to the outside of the cleaning port. It is convenient for manual cleaning of the inside of the filtering device.

[0015] Furthermore, the material discharge pipe is in a funnel shape. It is convenient for the concentrated discharge of impurities.

[0016] Through the above technical solutions, the beneficial effects of the present utility model are as follows:

[0017] 1. When the filter screen in the present utility model is blocked, the transmission mechanism drives the brush to move along the end face of the filter screen to realize the brushing of the filter screen. The impurities washed out fall from the filter screen into the material discharge pipe and are discharged, ensuring the normal operation of the filtering device and increasing the service life of the filtering device.

[0018] 2. In the present utility model, the power mechanism drives the second bevel gear to rotate, and the first bevel gear in transmission connection with the second bevel gear drives the driving wheel to rotate. At this time, the transmission belt starts to rotate around the driving wheel and the driven wheel, and then realizes the brushing of the filter screen by the brush fixed on the transmission belt from top to bottom.

[0019] 3. In the present utility model, the lower end of the filter net contacts one side of the feed inlet of the blanking pipe, ensuring that the impurities brushed off the filter net directly fall into the blanking pipe, thereby improving the filtering effect of the filtering device. Brief Description of the Drawings

[0020] Figure 1 It is a schematic structural view of a circulating water filtering device of the present utility model;

[0021] Figure 2 It is a front view of a circulating water filtering device of the present utility model;

[0022] Figure 3 It is a Figure 2 structural sectional view at A-A of a circulating water filtering device of the present utility model;

[0023] Figure 4 It is a side view of a circulating water filtering device of the present utility model;

[0024] Figure 5 It is a Figure 4 structural sectional view at B-B of a circulating water filtering device of the present utility model;

[0025] Figure 6 It is a schematic structural view of the driving connection between the first bevel gear and the second bevel gear of a circulating water filtering device of the present utility model.

[0026] Reference numerals in the drawings: 1 is a filter tank, 2 is a water inlet pipe, 3 is a water outlet pipe, 4 is a filter net, 5 is a brush, 6 is a blanking pipe, 7 is a second valve, 8 is a transmission belt, 9 is a driving wheel, 10 is a driven wheel, 11 is a first bevel gear, 12 is a second bevel gear, 13 is a servo motor, 14 is an observation port, 15 is a sealing plate, 16 is a protective cover. Detailed Embodiment

[0027] The present utility model will be further described below in conjunction with the drawings and the detailed embodiment:

[0028] As Figures 1 to 6 shown, this embodiment provides a circulating water filtering device, including a filter tank 1, a water inlet pipe 2 and a water outlet pipe 3 are communicated with the filter tank 1, a filter net 4 is arranged inside the filter tank 1, the water inlet pipe 2 is located on one side of the filter net 4, the water outlet pipe 3 is located on the other side of the filter net 4, and second valves 7 are arranged on both the water inlet pipe 2 and the water outlet pipe 3. When the second valves 7 are opened, the circulating water enters the filter tank 1 from the water inlet pipe 2 and then flows out from the water outlet pipe 3.

[0029] In this embodiment, the filter net 4 is inclined, and a bent portion is provided at the upper end of the filter net 4, and the bent portion is closed. Filter holes are provided at positions of the filter net 4 except for the bent portion.

[0030] Furthermore, a brushing assembly is provided inside the filter box 1. The brushing assembly is located on the side of the filter net 4 close to the water inlet pipe 2. The brushing assembly includes a brush 5 and a transmission mechanism. Transmission mechanisms are provided on both sides inside the filter box 1. The transmission mechanism on one side is in transmission connection with an external power mechanism. The power mechanism is a servo motor 13. The brush handle of the brush 5 is fixed on the transmission mechanism, and the bristles of the brush 5 contact the filter net 4. The transmission mechanism drives the brush 5 to move along the end face of the filter net 4 to brush the filter net 4.

[0031] Specifically, as Figure 3 , Figure 5 shown in Figure 6 , the transmission mechanism includes a transmission belt 8, a driving wheel 9 and a driven wheel 10. The fixed shafts of the driving wheel 9 and the driven wheel 10 are rotationally connected to the inner side wall of the filter box 1. The transmission belt 8 is sleeved on the outer sides of the driving wheel 9 and the driven wheel 10. Both ends of the brush handle of the brush 5 are fixed on the transmission belt 8. The driving wheel 9 and the driven wheel 10 are arranged in a vertical offset manner so that the inclination direction of the transmission belt 8 is consistent with the inclination direction of the filter net 4. The connection part between the end of the brush 5 and the transmission belt 8 is composed of a soft plate body (such as a rubber plate). The end of the brush 5 and the transmission belt 8 are fixedly connected by gluing to prevent the brush 5 from falling off the transmission belt 8 when the transmission belt 8 rotates.

[0032] The end of the fixed shaft of the driving wheel 9 of the transmission mechanism on one side inside the filter box 1 extends out of the filter box 1 and a first bevel gear 11 is fixed to its end. The power mechanism is installed on the outer side wall of the filter box 1, and a second bevel gear 12 is fixed to the end of the output end of the power mechanism. The first bevel gear 11 and the second bevel gear 12 are in transmission connection. The first bevel gear 11 and the second bevel gear 12 are protected by a protective cover 16 fixed outside the filter box 1.

[0033] In this embodiment, the servo motor 13 drives the first bevel gear 11 in transmission connection with the second bevel gear 12 to rotate, thereby driving the driving wheel 9 in one of the transmission mechanisms to rotate, realizing the rotation of the transmission belt 8. At this time, the brush 5 fixed at both ends on the transmission belts 8 of the two transmission mechanisms starts to brush downwards from the upper part of the filter net 4. The other transmission mechanism mainly plays a guiding and limiting role to ensure the stability of the movement of the brush 5. When the brush 5 moves to the position of the driven wheel 10, the brush 5 follows the transmission belt 8 and starts to move upwards from the bottom. At this time, the bristles of the brush 5 face away from the filter net 4. When the brush 5 returns to the driving wheel 9, the bristles of the brush 5 contact the filter net 4 again, continuously brushing the filter net 4.

[0034] In this embodiment, the driving wheel 9 and the driven wheel 10 are pulleys, and the transmission belt 8 is a belt to form a belt transmission structure. In another possible implementation mode, the driving wheel 9 and the driven wheel 10 are sprockets, the transmission belt 8 is a chain, and the brush handle of the brush 5 is fixed on the chain to form a chain transmission structure, which can also realize the transmission function in this device.

[0035] Furthermore, the lower side of the filter box 1 is connected with a feed pipe 6, which is funnel-shaped and has a first valve (not shown in the figure). The feed pipe 6 is located on the side of the filter screen 4 close to the water inlet pipe 2. The lower end of the filter screen 4 is in contact with one side of the feed port of the feed pipe 6, ensuring that the impurities washed off the filter screen 4 will directly fall into the feed pipe 6, thereby improving the filtering effect of the filtering device.

[0036] As an implementation method, an observation port 14 is provided on the upper side of the filter box 1. The water flow and debris accumulation in the device can be monitored at any time to facilitate cleaning of the interior.

[0037] As an implementation method, a cleaning port is provided on one side of the filter box 1, and a sealing plate 15 is detachably connected to the outside of the cleaning port. The sealing plate 15 is a blind flange, and is detachably connected to the cleaning port by bolts.

[0038] After the filtering device has been used for a period of time, when the staff observes through the observation port 14 that there is a lot of debris accumulated in the device and there are a lot of impurities on the filter screen 4, the second valve 7 on the water inlet pipe 2 is closed, and after waiting for the circulating water to flow out of the filter box 1, the first valve on the discharge pipe 6 is opened, and the servo motor 13 is turned on. The servo motor 13 drives the first bevel gear 11 connected to the second bevel gear 12 to rotate, thereby driving the driving wheel 9 in one of the transmission mechanisms to rotate, so as to realize the rotation of the transmission belt 8. At this time, the brush 5 on the transmission belt 8 of the two transmission mechanisms at both ends begins to scrub downward from the upper part of the filter screen 4, and the brush 5 moved to the position of the driven wheel 10 follows the transmission belt 8 and starts to move from bottom to top. At this time, the bristles of the brush 5 face the side away from the filter screen 4. When the brush 5 returns to the driving wheel 9, the bristles of the brush 5 contact the filter screen 4 again, and the filter screen 4 is continuously scrubbed. The impurities scrubbed on the filter screen 4 will directly fall into the discharge pipe 6, and the impurities can be discharged.

[0039] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A circulating water filtration device, comprising a filtration tank (1), characterized in that, A water inlet pipe (2) and a water outlet pipe (3) are connected to the filtering box (1). A filter screen (4) is arranged inside the filtering box (1). The water inlet pipe (2) is located on one side of the filter screen (4), and the water outlet pipe (3) is located on the other side of the filter screen (4). A brushing assembly is arranged inside the filtering box (1). The brushing assembly is located on the side of the filter screen (4) close to the water inlet pipe (2). The brushing assembly includes a brush (5) and a transmission mechanism. The brush handle of the brush (5) is fixed on the transmission mechanism, and the bristles of the brush (5) contact the filter screen (4). The transmission mechanism drives the brush (5) to move along the end face of the filter screen (4) to brush the filter screen (4). A blanking pipe (6) is connected to the lower side of the filtering box (1). A first valve is arranged on the blanking pipe (6). The blanking pipe (6) is located on the side of the filter screen (4) close to the water inlet pipe (2).

2. The circulating water filtering device according to claim 1, characterized in that Second valves (7) are arranged on both the water inlet pipe (2) and the water outlet pipe (3).

3. A circulating water filtration device according to claim 1, characterized in that, Transmission mechanisms are arranged on both sides inside the filtering box (1). The transmission mechanism on one side is in transmission connection with an external power mechanism.

4. A circulating water filtration device according to claim 3, characterized in that, The transmission mechanism includes a transmission belt (8), a driving wheel (9) and a driven wheel (10). The fixed shafts of the driving wheel (9) and the driven wheel (10) are rotatably connected to the inner side wall of the filtering box (1). The transmission belt (8) is sleeved on the outer sides of the driving wheel (9) and the driven wheel (10). The brush handle of the brush (5) is fixed on the transmission belt (8). The end of the fixed shaft of the driving wheel (9) of the transmission mechanism on one side inside the filtering box (1) extends out of the filtering box (1) and a first bevel gear (11) is fixed to its end. The power mechanism is installed on the outer side wall of the filtering box (1). The end of the output end of the power mechanism is fixed with a second bevel gear (12). The first bevel gear (11) is in transmission connection with the second bevel gear (12).

5. A circulating water filtration device according to claim 4, wherein The filter screen (4) is inclined. The driving wheel (9) and the driven wheel (10) are arranged up and down in a staggered manner so that the inclination direction of the transmission belt (8) is the same as the inclination direction of the filter screen (4).

6. The circulating water filtering device according to claim 3, characterized in that, The power mechanism is a servo motor (13).

7. A circulating water filtration device according to claim 5, characterized in that A bent portion is arranged at the upper end of the filter screen (4), and the bent portion is closed.

8. A circulating water filtration device according to claim 1, characterized in that, An observation port (14) is arranged on the upper side of the filtering box (1).

9. The circulating water filtering device according to claim 1, characterized in that, A cleaning port is opened on one side of the filtering box (1), and a sealing plate (15) is detachably connected to the outside of the cleaning port.

10. A circulating water filtration device according to claim 1, characterized in that, The blanking pipe (6) is in a funnel shape.

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