A water purifying device

Abstract

The utility model belongs to pure water processing technical field especially is a kind of pure water's pretreatment device, including the shunt unit for shunting water to be handled and at least two filter units being communicated with the shunt unit, the shunt unit selectively shunts water to be handled to the filter unit of one of it;Wherein, the filter unit includes the water inlet portion, filter portion and water outlet portion that are communicated in proper order, the top end of water inlet portion is equipped with water inlet, and the bottom end of water outlet portion is equipped with water outlet;Microplate-shaped filter screen of pull-out type dismounting is equipped in the filter portion;In the utility model, filter assembly adopts pull-out type design, and quick disassembly is realized with locking mechanism, without disassembling pipeline, and operation process is greatly simplified;Shunt unit selectively shunts water to be handled to the filter unit of one of it, ensures that raw water supply is not interrupted, realizes the continuous production mode of "cleaning while shunting", avoids machine stoppage loss.

Description

Technical Field

[0001] This utility model belongs to the field of pure water processing technology, specifically relating to a pure water pretreatment device. Background Technology

[0002] In pure water processing, pretreatment is a key step to ensure the effectiveness of subsequent purification. Its core function is to disperse inorganic salts in the raw water by mixing with scale inhibitors and to remove suspended impurities, colloids and other pollutants by filtration.

[0003] To prevent filter components from clogging, existing technologies typically employ "online cleaning devices" to clean the filter screen in real time, such as removing impurities adhering to the filter screen through scrapers or high-pressure water rinsing.

[0004] However, existing online cleaning technologies have significant drawbacks: First, the cleaning is incomplete. Online cleaning can only remove some impurities from the surface of the filter screen, while most impurities will be deposited inside the filter pipes with the water flow. Long-term accumulation can easily lead to secondary pollution and even aggravate pipe blockage. Second, the maintenance efficiency is low. When it is necessary to thoroughly clean the impurities accumulated in the pipes, the machine must be stopped and the pipes disassembled. This is not only cumbersome to operate, but also leads to production interruption, which greatly reduces the continuity and efficiency of pure water processing.

[0005] To address the aforementioned problems, this application proposes a pretreatment device for pure water. Utility Model Content

[0006] To address the aforementioned problems in the existing technology, this utility model provides a pure water pretreatment device, which is convenient to use, easy to clean, and has high processing efficiency.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a pretreatment device for pure water, comprising a diversion unit for diverting water to be treated and at least two filtration units connected to the diversion unit, wherein the diversion unit selectively diverts the water to be treated to one of the filtration units.

[0008] The filtration unit includes an inlet section, a filtration section, and an outlet section connected in sequence. The top of the inlet section is provided with an inlet, and the bottom of the outlet section is provided with an outlet.

[0009] The filter section is equipped with a removable microporous plate-shaped filter screen.

[0010] Preferably, the diversion unit includes a three-way valve, the first interface of which is connected to a water inlet for receiving raw water, and the second and third interfaces of the diversion unit are connected to the inlet of the filter unit via a manual valve and a water supply pipe, respectively.

[0011] Preferably, the water inlet, the filter, and the water outlet are connected in sequence via flanges.

[0012] Preferably, it further includes:

[0013] A locking mechanism is provided on the filter section for assembling and disassembling the microporous plate-shaped filter screen. When the microporous plate-shaped filter screen is fully pushed into the filter section, the locking mechanism is used to lock it.

[0014] Preferably, the locking mechanism includes:

[0015] A positioning plate fixed to one end of the microporous plate-shaped filter screen;

[0016] A limiting block is fixed to the end of the positioning plate, and the limiting block is provided with a limiting notch;

[0017] A tilting screw hinged to the filter section, the tilting screw passing through the limiting notch; and

[0018] A wing nut is installed on the extended end of the reversing screw by means of thread engagement.

[0019] Preferably, there are two of each of the limiting block, the flipping screw, and the wing nut.

[0020] Preferably, the filtering unit further includes:

[0021] Two trays are symmetrically fixed inside the filter section at the corresponding disassembly ports, and guide slots are provided on the opposite surfaces of the two trays. Guide blocks that are adapted to the guide slots are fixed at both ends of the microporous plate-shaped filter screen.

[0022] Preferably, the top surface of the tray is provided with a guide slope.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] In this invention, the filter assembly adopts a pull-out design and a locking mechanism to achieve quick assembly and disassembly without disassembling the pipeline, greatly simplifying the operation process; the diversion unit selectively diverts the water to be treated to one of the filter units, ensuring that the raw water supply is uninterrupted and realizing a continuous production mode of "cleaning and diverting at the same time" to avoid downtime losses.

[0025] Other additional advantages and benefits of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is an isometric structural diagram of the filter unit in this utility model;

[0029] Figure 3 This utility model Figure 2 A magnified schematic diagram of the locking mechanism in the diagram;

[0030] Figure 4 This is a schematic diagram of the isometric structure of the microporous plate-shaped filter screen in this utility model.

[0031] In the diagram: 1. Diversion unit; 11. Tee; 12. Inlet; 13. Manual valve; 14. Water supply pipe; 2. Filtration unit; 21. Inlet; 211. Inlet; 22. Filtration section; 221. Disassembly port; 23. Outlet; 231. Outlet; 24. Microporous plate filter screen; 241. Guide block; 25. Locking mechanism; 251. Positioning plate; 252. Limiting block; 2521. Limiting notch; 253. Flip screw; 254. Wing nut; 26. Support plate; 261. Guide slot; 262. Guide slope. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-4This utility model provides the following technical solution: a pure water pretreatment device, including a diversion unit 1 for diverting water to be treated and at least two filter units 2 connected to the diversion unit 1. The diversion unit 1 selectively diverts the water to be treated to one of the filter units 2. The filter unit 2 includes an inlet 21, a filter 22 and an outlet 23 connected in sequence. The top of the inlet 21 is provided with an inlet 211 and the bottom of the outlet 23 is provided with an outlet 231. The filter 22 is provided with a removable microporous plate filter screen 24. With the above solution, when in use, the water to be treated first enters the diversion unit 1. The diversion unit 1 will selectively guide the water flow to one of the filter units 2 according to actual needs. When the water flow enters the inlet 21 of the filter unit 2, it will flow in from the inlet 211 and gradually fill the inlet 21. Then the water flow will smoothly enter the filter 22.

[0034] In the filtration section 22, water flows through the microporous plate filter screen 24. At this time, impurities in the water, such as particulate pollutants and suspended matter, are effectively intercepted by the microporous plate filter screen 24. The filtered pure water continues to flow downward, enters the water outlet section 23, and is finally discharged from the water outlet 231, completing the entire filtration process.

[0035] When the microporous plate filter 24 in the filter unit 2 being used affects the filtration effect due to intercepting too many impurities, the diversion unit 1 can switch to another backup filter unit 2 to ensure the continuous operation of pure water pretreatment. At the same time, the staff can pull out the microporous plate filter 24 in the dirty filter unit 2, clean or replace it and reinstall it for subsequent use, ensuring that the raw water supply is not interrupted and realizing the continuous production mode of "cleaning and diverting at the same time" to avoid downtime losses.

[0036] Optionally, by Figure 1 and Figure 2 As shown in this embodiment, the diversion unit 1 includes a three-way valve 11. The first interface of the three-way valve 11 is connected to the water inlet 12 for receiving raw water. The second and third interfaces of the diversion unit 1 are connected to the inlet 211 of the filter unit 2 via a manual valve 13 and a water supply pipe 14, respectively. With the above scheme, when in use, if the manual valve 13 corresponding to one of the filter units 2 is opened, the raw water will flow out from the corresponding interface (second interface or third interface) of the three-way valve 11 and be accurately introduced into the inlet 211 of the filter unit 2 via the water supply pipe 14. Then, the pretreatment is completed according to the aforementioned filtration process.

[0037] When it is necessary to switch filter unit 2, simply close the currently used manual valve 13 and open the manual valve 13 corresponding to the other filter unit 2. The raw water will change its flow direction in the tee 11 and enter the new filter unit 2 through the corresponding water supply pipe 14, ensuring that the pretreatment work is not interrupted. This diversion method controlled by the manual valve 13 is intuitive and reliable, and can flexibly adapt to the switching needs of different filter units 2. Combined with the design of the pull-out microporous plate filter screen 24, the practicality and maintenance convenience of the device are further improved.

[0038] Preferably, by Figure 1 and Figure 2 As shown in this embodiment, the water inlet 21, the filter 22, and the water outlet 23 are connected in sequence by flanges. With the above solution, during use, the flange connection tightly fixes the flanges of adjacent components with bolts, which can effectively resist the pressure impact generated by the water flow, avoid problems such as loosening and leakage at the connection due to water pressure fluctuations, ensure the sealing of the entire filter unit 2 during long-term use, and reduce water waste and the risk of equipment damage caused by leakage.

[0039] In addition, when it is necessary to perform deep cleaning or replacement of the microporous plate filter screen 24 in the filter section 22, or to perform internal maintenance on the water inlet section 21 and the water outlet section 23, the components can be easily disassembled simply by loosening the bolts on the flange. Compared with other connection methods, this operation does not require complicated tools, which greatly shortens the disassembly and assembly time, reduces the workload of maintenance personnel, and makes equipment maintenance more efficient.

[0040] Optionally, by Figures 1-3 As shown, this embodiment also includes a locking mechanism 25. The filter section 22 has a disassembly / removal port 221 for disassembling and assembling the microporous plate-shaped filter screen 24. When the microporous plate-shaped filter screen 24 is fully pushed into the filter section 22, it is locked by the locking mechanism 25. The locking mechanism 25 includes: a positioning plate 251 fixed to one end of the microporous plate-shaped filter screen 24, a limiting block 252 fixed to the end of the positioning plate 251, a flipping screw 253 hinged to the filter section 22, and a wing nut 254. The limiting block 252 has a limiting... The positioning notch 2521 is pierced by the rotating screw 253, and the wing nut 254 is installed on the protruding end of the rotating screw 253 by thread engagement. With the above scheme, when the microporous plate filter screen 24 is fully pushed into the filter part 22, the positioning plate 251 fits against the edge of the disassembly port 221 of the filter part 22, and the limiting notch 2521 on the limiting block 252 is directly opposite the rotating screw 253. At this time, the rotating screw 253 is rotated outward so that the rotating screw 253 is locked into the limiting notch 2521.

[0041] Then, tighten the wing nut 254 at the extended end of the flip screw 253. It will press tightly against the limit block 252, and the positioning plate 251 and the filter part 22 will be firmly fixed by the thread locking force. This will prevent the microporous plate filter screen 24 from shifting or shaking under the impact of water flow, and ensure that the microporous plate filter screen 24 is always in the best filtration position, thus ensuring the stability of the filtration effect.

[0042] When it is necessary to remove the microporous plate filter 24, no special tools are needed. Simply loosen the wing nut 254 manually, and then turn the screw 253 outward to release it from the constraint of the limiting notch 2521. At this time, the microporous plate filter 24 can be removed from the disassembly port 221 by directly pulling out the positioning plate 251. The whole process is time-saving and labor-saving, which greatly improves the efficiency of cleaning or replacing the filter.

[0043] Preferably, by Figures 1-3 As shown in this embodiment, there are two symmetrically distributed limiting blocks 252, flip screws 253, and wing nuts 254. With the above scheme, during use, the two symmetrically distributed limiting blocks 252, flip screws 253, and wing nuts 254 apply locking force from both sides of the positioning plate 251, which can make the positioning plate 251 fit more tightly and the force is more uniform. This avoids the positioning plate 251 tilting or the microporous plate filter screen 24 being installed off-center due to force on one side, ensuring that the microporous plate filter screen 24 always remains flat and stable in the filter section 22, thereby ensuring the uniformity of water flow through the microporous plate filter screen 24 during filtration and improving the filtration effect.

[0044] Preferably, by Figures 1-4 As shown in this embodiment, the filter unit 2 further includes two trays 26, which are symmetrically fixed in the filter section 22 at positions corresponding to the disassembly and assembly ports 221. Guide slots 261 are provided on the opposing surfaces of the two trays 26. Guide blocks 241 that are adapted to the guide slots 261 are fixed at both ends of the microporous plate filter 24. In addition, the top surface of the tray 26 is provided with a flow-guiding slope 262. With the above solution, when installing the microporous plate filter 24, the guide blocks 241 at both ends can be accurately embedded in the guide slots 261 of the tray 26 to form a stable sliding track. This not only makes the pushing or pulling action of the microporous plate filter 24 smoother and avoids jamming caused by installation offset, but also ensures that the microporous plate filter 24 always maintains a horizontal and centered position in the filter section 22 through the cooperation of the slots and blocks, preventing waste of filter area or local accumulation of impurities due to tilting.

[0045] The guide slope 262 on the top surface of the tray 26 plays a key role when water flows into the filter section 22. When water flows into the filter section 22 from the inlet section 21, it will first come into contact with the guide slope 262 of the tray 26. The inclination angle of the slope can guide the water flow to converge in the middle of the microporous plate filter screen 24, avoiding the water flow from directly impacting the edge area of ​​the microporous plate filter screen 24. This reduces the impact force of the water flow on the edge of the microporous plate filter screen 24, reduces the risk of edge wear after long-term use, and allows the water flow to be more evenly distributed on the entire surface of the microporous plate filter screen 24, ensuring that the filtration area is fully utilized and improving the filtration efficiency per unit time.

[0046] In addition, the two support plates 26 form a stable support structure for the microporous plate filter screen 24. During the process of water flow impact and impurity interception, the microporous plate filter screen 24 may be subjected to a certain downward pressure. The support plates 26, through the guide slots 261, lift the edges of the microporous plate filter screen 24 from both sides, effectively dispersing the force and preventing the microporous plate filter screen 24 from bending or deforming due to excessive pressure. This enhances the stability of the microporous plate filter screen 24 in working condition and extends its service life.

[0047] Components not described in detail in this article are existing technologies.

[0048] The working principle and usage process of this utility model: When using the pretreatment device of this utility model, the raw water first enters the first interface of the three-way 11 of the diversion unit 1 through the water inlet 12. At this time, the staff can control the water flow direction through the manual valve 13.

[0049] If the manual valve 13 corresponding to one of the filter units 2 is opened, the raw water will flow out from the corresponding interface (second interface or third interface) of the tee 11 and be accurately introduced into the inlet 211 of the filter unit 2 through the water supply pipe 14.

[0050] After the raw water entering the inlet section 21 gradually fills the cavity, it flows smoothly into the filter section 22. In the filter section 22, the water flow first contacts the guide slope 262 on the top surface of the tray 26. The slope guides the water flow to converge in the middle of the microporous plate filter screen 24, so that the water flow is evenly distributed and passes through the microporous plate filter screen 24. At this time, particulate impurities, suspended solids and other particles in the water are intercepted by the microporous plate filter screen 24. The filtered pure water continues to flow downward and enters the outlet section 23, and is finally discharged from the outlet 231, completing a single filtration.

[0051] When the microporous plate filter screen 24 in the filter unit 2 being used is affected by the accumulation of impurities, the staff closes the corresponding manual valve 13 and opens the manual valve 13 of another filter unit 2 at the same time. The raw water switches its flow direction in the tee 11 and enters the standby filter unit 2 through the water supply pipe 14 to ensure that the pretreatment work is carried out continuously.

[0052] For the filter unit 2 that needs maintenance, first unlock it through the locking mechanism 25: loosen the butterfly nuts 254 on both sides, flip the screw 253 to disengage from the limiting notch 2521 of the limiting block 252, and then pull out the positioning plate 251 so that the microporous plate filter screen 24 slides out of the disassembly port 221 along the guide slot 261 of the support plate 26.

[0053] When the cleaned or replaced microporous plate filter screen 24 is pushed back in, the guide block 241 is precisely reset along the guide slot 261. After being fully pushed in, the flip screws 253 on both sides are flipped into the limiting notch 2521, and the wing nut 254 is tightened. The positioning plate 251 is tightly fitted with the filter part 22 to complete the locking and restore the filter unit 2 to the standby state.

[0054] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pretreatment device for pure water, characterized in that, It includes a diversion unit (1) for diverting water to be treated and at least two filter units (2) connected to the diversion unit (1), wherein the diversion unit (1) selectively diverts water to be treated to one of the filter units (2). The filter unit (2) includes an inlet (21), a filter (22) and an outlet (23) connected in sequence. The top of the inlet (21) is provided with an inlet (211) and the bottom of the outlet (23) is provided with an outlet (231). The filter section (22) is provided with a microporous plate-shaped filter screen (24) that can be pulled out and disassembled.

2. The pure water pretreatment device according to claim 1, characterized in that: The diversion unit (1) includes a tee (11), the first interface of which is connected to the water inlet (12) for receiving raw water, and the second and third interfaces of the diversion unit (1) are connected to the inlet (211) of the filter unit (2) via a manual valve (13) and a water supply pipe (14).

3. The pure water pretreatment device according to claim 1, characterized in that: The water inlet (21), the filter (22), and the water outlet (23) are connected in sequence by flanges.

4. The pure water pretreatment device according to claim 1, characterized in that: Also includes: The locking mechanism (25) has a disassembly port (221) on the filter section (22) for disassembling and assembling the microporous plate filter screen (24). When the microporous plate filter screen (24) is completely pushed into the filter section (22), the locking mechanism (25) locks it.

5. The pure water pretreatment device according to claim 4, characterized in that: The locking mechanism (25) includes: A positioning plate (251) is fixed to one end of the microporous plate-shaped filter screen (24); A limiting block (252) is fixed to the end of the positioning plate (251), and the limiting block (252) is provided with a limiting notch (2521); A flip screw (253) hinged to the filter section (22), the flip screw (253) passing through the limiting notch (2521); and A wing nut (254) is installed on the extended end of the reversing screw (253) by means of thread engagement.

6. The pure water pretreatment device according to claim 5, characterized in that: The limiting block (252), the flipping screw (253), and the wing nut (254) are all symmetrically distributed in twos.

7. The pure water pretreatment device according to claim 1, characterized in that: The filter unit (2) further includes: Two trays (26) are symmetrically fixed in the filter section (22) at the positions corresponding to the disassembly port (221), and guide slots (261) are provided on the opposite surfaces of the two trays (26). Guide blocks (241) that are compatible with the guide slots (261) are fixed at both ends of the microporous plate filter screen (24).

8. The pure water pretreatment device according to claim 7, characterized in that: The top surface of the tray (26) is provided with a guide slope (262).

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