Double-core up-and-down sewage washing and mutual washing water purifier

Abstract

The utility model belongs to water purifier technical field, concretely relates to a kind of up and down sewage double-core mutual washing water purifier, including waterway board and the first ultrafilter and flush pipeline of being installed on waterway board, second ultrafilter and control valve group are additionally provided on waterway board, first ultrafilter and second ultrafilter are communicated with flush pipeline respectively, first ultrafilter and second ultrafilter have the freedom of mutual flushing by means of control valve group, and sewage formed by flushing is discharged along the sewage outlet of flush pipeline.The utility model washes the filter core of another ultrafilter using one ultrafilter filtered water, solves the problem that existing single-core self-flushing is not thorough, and secondary pollution is prone to, prolongs filter core service life, reduces user use cost, while ensuring water flow stability and filtering effect.

Description

Technical Field

[0001] This utility model belongs to the field of water purifier technology, specifically relating to a dual-core water purifier with top and bottom drainage and mutual washing. Background Technology

[0002] Ultrafiltration water purifiers are widely used in household and commercial water purification applications due to their high filtration accuracy and ability to retain minerals in water. Their core component is the ultrafiltration filter cartridge. Over time, the surface of the filter cartridge easily traps impurities, suspended solids, and other contaminants in the water. If not flushed promptly and effectively, this can lead to filter clogging, reduced water flow, and even affect the filtration effect and the lifespan of the filter cartridge.

[0003] Most existing ultrafiltration water purifiers use a single-filter self-rinsing method. This involves water flowing into the filter cartridge from the inlet and rinsing it before draining it through the outlet. This process removes contaminants trapped in the filter cartridge. However, since the water used for rinsing is unfiltered, it still contains a significant amount of raw water impurities. This can cause some new impurities to re-attach to the filter cartridge, resulting in incomplete rinsing. The long-term accumulation of contaminants accelerates filter cartridge aging, leading to a higher frequency of replacement. This not only increases the user's operating costs but may also cause a decline in water quality due to untimely filter replacement, making it difficult to meet the user's water purification needs. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a dual-core water purifier with top and bottom drainage and mutual washing. It uses purified water filtered by one ultrafiltration unit to wash the filter element of another ultrafiltration unit, solving the problems of incomplete self-washing and easy secondary pollution of existing single-core filters. This extends the service life of the filter element, reduces user operating costs, and ensures stable water flow and filtration effect.

[0005] The specific technical solution adopted in this utility model is as follows:

[0006] The dual-core water purifier with top and bottom drainage includes a water circuit board, a first ultrafiltration unit and a flushing pipe installed on the water circuit board, and a second ultrafiltration unit and a control valve group are added to the water circuit board. The first and second ultrafiltration units are respectively connected to the flushing pipe. The first and second ultrafiltration units have the freedom to flush each other with the help of the control valve group, and the wastewater generated by flushing is discharged along the drain port of the flushing pipe.

[0007] The flushing pipeline includes an inlet pipe, a drain pipe, and an outlet pipe. The inlet ends of the first and second ultrafiltration machines are respectively connected to the inlet pipe, the purified water output ends of the first and second ultrafiltration machines are respectively connected to the outlet pipe, and the wastewater output ends of the first and second ultrafiltration machines are respectively connected to the drain pipe.

[0008] The control valve assembly includes a first electric valve and a second electric valve. The first electric valve is located between the inlet end of the first ultrafiltration unit and the inlet pipe, and the second electric valve is located between the inlet end of the second ultrafiltration unit and the inlet pipe.

[0009] The control valve group includes a third electric valve and a fourth electric valve. The third electric valve is located between the wastewater output end of the first ultrafiltration unit and the sewage pipe, and the fourth electric valve is located between the wastewater output end of the second ultrafiltration unit and the sewage pipe.

[0010] The control valve assembly includes a fifth electric valve, which is located on the outlet pipe.

[0011] The flushing pipeline also includes a backwash pipe, which is Y-shaped. The first input end of the backwash pipe is connected to the inlet end of the first ultrafiltration machine and the inlet pipe, respectively. The second input end of the backwash pipe is connected to the inlet end of the second ultrafiltration machine and the inlet pipe, respectively. The output end of the backwash pipe is connected to the drain pipe.

[0012] The control valve group includes a sixth electric valve and a seventh electric valve. The sixth electric valve is located at the first input end of the backwash pipe, and the seventh electric valve is located at the second input end of the backwash pipe.

[0013] The water circuit board is also provided with mounting holes, which are used to fasten and fix the water circuit board to the cover plate.

[0014] The beneficial effects of this utility model are:

[0015] This invention employs a dual-filter-cartridge collaborative filtration and mutual flushing method, using purified water from one ultrafiltration unit to flush the filter cartridge of another ultrafiltration unit. This solves the problems of incomplete self-flushing and secondary pollution associated with existing single-cartridge filters, extends the service life of the filter cartridges, reduces user operating costs, and ensures stable water flow and filtration effect. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of a water purifier;

[0017] Figure 2 This is a rear view diagram of the water purifier.

[0018] Figure 3 This is a schematic diagram of a water purifier during normal water production.

[0019] Figure 4 This is a schematic diagram of the water purifier during the forward flushing process.

[0020] Figure 5 This is a schematic diagram of the structure of the water purifier when performing backwashing of the first ultrafiltration unit;

[0021] Figure 6This is a schematic diagram of the structure of the water purifier when performing backwashing of the first ultrafiltration unit;

[0022] Figure 7 This is a schematic diagram of the structure of the water purifier when performing backwashing of the second ultrafiltration unit;

[0023] Figure 8 This is a schematic diagram of the structure of the water purifier when performing backwashing of the second ultrafiltration unit;

[0024] In the attached diagram, 1. Water circuit board, 2. First ultrafiltration unit, 3. Second ultrafiltration unit, 4. Inlet pipe, 5. Drain pipe, 6. Outlet pipe, 7. First electric valve, 8. Second electric valve, 9. Third electric valve, 10. Fourth electric valve, 11. Fifth electric valve, 12. Backwash pipe, 13. Sixth electric valve, 14. Seventh electric valve, 15. Mounting hole. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0026] Specific embodiments, such as Figure 1-8 As shown, this utility model provides a dual-core water purifier with top and bottom drainage and mutual washing, including a water circuit board 1, a first ultrafiltration unit 2 and a flushing pipe installed on the water circuit board 1, a second ultrafiltration unit 3 and a control valve group are added to the water circuit board 1, the first ultrafiltration unit 2 and the second ultrafiltration unit 3 are respectively connected to the flushing pipe, the first ultrafiltration unit 2 and the second ultrafiltration unit 3 have the freedom to flush each other with the help of the control valve group, and the sewage formed by flushing is discharged along the drain port of the flushing pipe.

[0027] Most existing ultrafiltration water purifiers use a single-filter self-rinsing method. This involves water flowing into the filter cartridge from the inlet and rinsing it before draining it through the outlet. This process removes contaminants trapped in the filter cartridge. However, since the water used for rinsing is unfiltered, it still contains a significant amount of raw water impurities. This can cause some new impurities to re-attach to the filter cartridge. Furthermore, the unidirectional water flow can result in incomplete rinsing. The long-term accumulation of contaminants accelerates filter cartridge aging, leading to more frequent replacements. This not only increases user costs but can also cause a decline in water quality if the filter cartridge is not replaced in time, making it difficult to meet the user's water purification needs.

[0028] Therefore, this utility model adopts a dual-filter-cartridge collaborative filtration and mutual flushing method, using the purified water filtered by one ultrafiltration machine to flush the filter cartridge of another ultrafiltration machine, solving the problems of incomplete self-flushing of existing single-cartridge filters and easy generation of secondary pollution, extending the service life of the filter cartridge, reducing user operating costs, and ensuring stable purified water flow and filtration effect.

[0029] When an ultrafiltration unit is filtering and producing purified water, the purified water can be guided to the filter element of another ultrafiltration unit through the control valve group. The filtered water is used to rinse the surface of the filter element to remove contaminants, preventing the raw water impurities from adhering to the filter element again. The wastewater generated during rinsing is discharged through the drain outlet of the rinsing pipeline, thus optimizing the rinsing effect from the source.

[0030] The flushing pipeline includes an inlet pipe 4, a drain pipe 5, and an outlet pipe 6. The inlet ends of the first ultrafiltration unit 2 and the second ultrafiltration unit 3 are respectively connected to the inlet pipe 4. The purified water output ends of the first ultrafiltration unit 2 and the second ultrafiltration unit 3 are respectively connected to the outlet pipe 6. The wastewater output ends of the first ultrafiltration unit 2 and the second ultrafiltration unit 3 are respectively connected to the drain pipe 5.

[0031] The inlet pipe 4 of the flushing pipeline provides a raw water input channel for the first ultrafiltration unit 2 and the second ultrafiltration unit 3. The outlet pipe 6 collects the purified water from the two ultrafiltration units and outputs it externally. The sewage pipe 5 is specifically for collecting the wastewater generated during flushing. The inlet, purified water output, and sewage output of the two ultrafiltration units are directly connected to their respective pipelines, so that the output of purified water and the discharge of sewage are two independent and non-interfering water flow paths, avoiding the mixing of sewage and purified water.

[0032] The control valve group includes a first electric valve 7 and a second electric valve 8. The first electric valve 7 is located between the water inlet end of the first ultrafiltration unit 2 and the water inlet pipe 4, and the second electric valve 8 is located between the water inlet end of the second ultrafiltration unit 3 and the water inlet pipe 4.

[0033] The control valve group includes a third electric valve 9 and a fourth electric valve 10. The third electric valve 9 is located between the sewage output end of the first ultrafiltration unit 2 and the sewage pipe 5, and the fourth electric valve 10 is located between the sewage output end of the second ultrafiltration unit 3 and the sewage pipe 5.

[0034] The control valve assembly includes a fifth electric valve 11, which is located on the outlet pipe 6.

[0035] The flushing pipeline also includes a backwash pipe 12, which is a Y-shaped pipeline. The first input end of the backwash pipe 12 is connected to the water inlet end of the first ultrafiltration machine 2 and the water inlet pipe 4, respectively. The second input end of the backwash pipe 12 is connected to the water inlet end of the second ultrafiltration machine 3 and the water inlet pipe 4, respectively. The output end of the backwash pipe 12 is connected to the sewage discharge pipe 5.

[0036] The control valve group includes a sixth electric valve 13 and a seventh electric valve 14. The sixth electric valve 13 is located at the first input end of the backwash pipe 12, and the seventh electric valve 14 is located at the second input end of the backwash pipe 12.

[0037] The water circuit board 1 is also provided with mounting holes 15, and the water circuit board 1 is fastened and fixed to the cover plate by means of the mounting holes 15.

[0038] The water circuit board 1 is provided with a mounting base, which has two rows of mounting holes 15. The cover plate is provided with buckles that cooperate with the mounting holes 15. By means of the insertion between the buckles and the mounting holes 15, the cover plate and the water circuit board 1 are fastened and fixed, so that the flushing pipeline is hidden in the sealed chamber.

[0039] The working principle of the dual-core water purifier with top and bottom drainage in this utility model is as follows:

[0040] Q1. When the water purifier is producing water normally: the first electric valve 7, the second electric valve 8 and the fifth electric valve 11 are in the open state, and the remaining electric valves are in the closed state.

[0041] like Figure 3 As shown, at this time, the first ultrafiltration machine 2 and the second ultrafiltration machine 3 are connected in parallel. The raw water is divided into two streams and enters the first ultrafiltration machine 2 and the second ultrafiltration machine 3 respectively for filtration. The filtered water is collected in the water outlet pipe 6 and flows out through the water outlet.

[0042] Q2. When the water purifier is flushing: the first electric valve 7, the second electric valve 8, the third electric valve 9, and the fourth electric valve 10 are in the open state, and the remaining electric valves are in the closed state.

[0043] like Figure 4 As shown, at this time, the first ultrafiltration unit 2 and the second ultrafiltration unit 3 are connected in parallel. The raw water is divided into two streams and enters the first ultrafiltration unit 2 and the second ultrafiltration unit 3 respectively for rinsing. The rinsed wastewater is collected in the drain pipe 5 and discharged through the drain outlet.

[0044] Q3. When the water purifier performs backwashing of the first ultrafiltration unit 2, the second electric valve 8 and the sixth electric valve 13 are in the open state, and the remaining electric valves are in the closed state.

[0045] like Figure 5 As shown, the raw water first enters the second ultrafiltration machine 3 through the second electric valve 8 for filtration. The filtered purified water enters the first ultrafiltration machine 2 from the purified water output end through the outlet pipe 6. The purified water backwashes the area between the raw water input end and the purified water output end of the first ultrafiltration machine 2. The wastewater after backwashing is discharged from the raw water input end of the first ultrafiltration machine 2, enters the backwash pipe 12 through the sixth electric valve 13, and then flows to the sewage pipe 5 and is discharged through the sewage outlet.

[0046] Q4. When the water purifier performs backwashing of the first ultrafiltration unit 2, the second electric valve 8 and the third electric valve 9 are in the open state, and the remaining electric valves are in the closed state.

[0047] like Figure 6As shown, the raw water first enters the second ultrafiltration machine 3 through the second electric valve 8 for filtration. The filtered water enters the first ultrafiltration machine 2 from the water outlet end of the first ultrafiltration machine 2 through the water outlet pipe 6. The purified water backwashes the area between the water outlet end and the wastewater outlet end of the first ultrafiltration machine 2. The backwashed wastewater is discharged from the wastewater outlet end of the first ultrafiltration machine 2, flows into the sewage pipe 5 and is discharged through the sewage outlet.

[0048] Q5. When the water purifier performs backwashing of the second ultrafiltration unit 3, the first electric valve 7 and the seventh electric valve 14 are in the open state, and the remaining electric valves are in the closed state.

[0049] like Figure 7 As shown, the raw water first enters the first ultrafiltration machine 2 through the first electric valve 7 for filtration. The filtered water then enters the second ultrafiltration machine 3 through the water outlet pipe 6 from the water outlet end of the first ultrafiltration machine 2. The purified water backwashes the area between the raw water inlet end and the water outlet end of the second ultrafiltration machine 3. The wastewater after backwashing is discharged from the raw water inlet end of the second ultrafiltration machine 3, enters the backwash pipe 12 through the seventh electric valve 14, and then flows into the drain pipe 5 and is discharged through the drain outlet.

[0050] Q6. When the water purifier performs backwashing of the second ultrafiltration unit 3, the first electric valve 7 and the fourth electric valve 10 are in the open state, and the remaining electric valves are in the closed state.

[0051] like Figure 8 As shown, the raw water first enters the first ultrafiltration machine 2 through the first electric valve 7 for filtration. The filtered water then enters the second ultrafiltration machine 3 through the water outlet pipe 6 from the water outlet end of the second ultrafiltration machine 3. The water backwashes the area between the water outlet end and the wastewater outlet end of the second ultrafiltration machine 3. The wastewater after backwashing is discharged from the wastewater outlet end of the second ultrafiltration machine 3, flows into the sewage pipe 5, and is discharged through the sewage outlet.

[0052] When the water purifier's filter cartridge has been used for a short time and has accumulated few contaminants, you can use the Q3 method to perform a simple cleaning of the water purifier.

[0053] When the filter element of the first ultrafiltration unit 2 of the water purifier has been used for a long time, you can perform a deep cleaning of the filter element of the first ultrafiltration unit 2 in sequence according to steps Q3 and Q4.

[0054] When the filter element of the second ultrafiltration unit 3 of the water purifier has been used for a long time, you can perform a deep cleaning of the filter element of the second ultrafiltration unit 3 by following steps Q5 and Q6 in sequence.

Claims

1. A dual-core water purifier with top and bottom drainage and mutual washing, comprising a water circuit board (1) and a first ultrafiltration unit (2) and flushing pipes installed on the water circuit board (1), characterized in that, The water circuit board (1) is equipped with a second ultrafiltration machine (3) and a control valve group. The first ultrafiltration machine (2) and the second ultrafiltration machine (3) are respectively connected to the flushing pipeline. The first ultrafiltration machine (2) and the second ultrafiltration machine (3) have the freedom to flush each other with the help of the control valve group, and the sewage formed by flushing is discharged along the drain outlet of the flushing pipeline.

2. The dual-core water purifier with top and bottom drainage and mutual washing as described in claim 1, characterized in that, The flushing pipeline includes an inlet pipe (4), a drain pipe (5), and an outlet pipe (6). The inlet ends of the first ultrafiltration machine (2) and the second ultrafiltration machine (3) are respectively connected to the inlet pipe (4). The purified water output ends of the first ultrafiltration machine (2) and the second ultrafiltration machine (3) are respectively connected to the outlet pipe (6). The wastewater output ends of the first ultrafiltration machine (2) and the second ultrafiltration machine (3) are respectively connected to the drain pipe (5).

3. The dual-core water purifier with top and bottom drainage as described in claim 2, characterized in that, The control valve group includes a first electric valve (7) and a second electric valve (8). The first electric valve (7) is located between the water inlet end of the first ultrafiltration machine (2) and the water inlet pipe (4), and the second electric valve (8) is located between the water inlet end of the second ultrafiltration machine (3) and the water inlet pipe (4).

4. The dual-core water purifier with top and bottom drainage and mutual washing as described in claim 2, characterized in that, The control valve group includes a third electric valve (9) and a fourth electric valve (10). The third electric valve (9) is located between the sewage output end of the first ultrafiltration machine (2) and the sewage pipe (5), and the fourth electric valve (10) is located between the sewage output end of the second ultrafiltration machine (3) and the sewage pipe (5).

5. The dual-core water purifier with top and bottom drainage as described in claim 2, characterized in that, The control valve assembly includes a fifth electric valve (11), which is located on the outlet pipe (6).

6. The dual-core water purifier with top and bottom drainage and mutual washing as described in claim 2, characterized in that, The flushing pipeline also includes a backwash pipe (12), which is a Y-shaped pipeline. The first input end of the backwash pipe (12) is connected to the water inlet end of the first ultrafiltration machine (2) and the water inlet pipe (4) respectively. The second input end of the backwash pipe (12) is connected to the water inlet end of the second ultrafiltration machine (3) and the water inlet pipe (4) respectively. The output end of the backwash pipe (12) is connected to the sewage pipe (5).

7. The dual-core water purifier with top and bottom drainage as described in claim 6, characterized in that, The control valve group includes a sixth electric valve (13) and a seventh electric valve (14). The sixth electric valve (13) is located at the first input end of the backwash pipe (12), and the seventh electric valve (14) is located at the second input end of the backwash pipe (12).

8. The dual-core water purifier with top and bottom drainage and mutual washing as described in claim 6, characterized in that, The water channel plate (1) is also provided with mounting holes (15), and the water channel plate (1) is fastened and fixed to the cover plate by means of the mounting holes (15).

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