CN223357451U - A water purification system capable of backwashing a pre-filter element - Google Patents
A water purification system capable of backwashing a pre-filter elementInfo
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- CN223357451U CN223357451U CN202422729008.3U CN202422729008U CN223357451U CN 223357451 U CN223357451 U CN 223357451U CN 202422729008 U CN202422729008 U CN 202422729008U CN 223357451 U CN223357451 U CN 223357451U
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Abstract
本实用新型涉及净水系统技术领域，公开了一种可反冲洗前置滤芯的净水系统，当需要对前置滤芯进行反冲洗时，关闭第一阀门，打开第二阀门。从而可防止原水继续进入前置滤芯，同时准备好排污准备。储水桶中的净水通过净水管路、反冲洗管路被输送至前置滤芯的第一出水口。净水反向流过前置滤芯，将之前拦截的杂质冲刷下来，携带杂质的水通过排污管排出，从而完成对前置滤芯的反冲洗。反冲洗完成后，可恢复正常的过滤状态。通过这种周期性的反冲洗，可以保持前置滤芯的良好性能。通过这样的设置，可实现净水回冲前置滤芯，使得前置滤芯保持良好的过滤性能，长期稳定地拦截大颗粒杂质，用户不需要频繁更换前置滤芯，降低了使用成本和维护的麻烦。
The utility model relates to the technical field of water purification systems, and discloses a water purification system capable of backwashing a pre-filter element. When the pre-filter element needs to be backwashed, the first valve is closed and the second valve is opened. This prevents raw water from continuing to enter the pre-filter element, and at the same time, sewage discharge is prepared. The clean water in the water storage tank is transported to the first water outlet of the pre-filter element through the clean water pipeline and the backwash pipeline. The clean water flows through the pre-filter element in the reverse direction, washing away the impurities previously intercepted, and the water carrying the impurities is discharged through the sewage pipe, thereby completing the backwashing of the pre-filter element. After the backwashing is completed, the normal filtering state can be restored. Through this periodic backwashing, the good performance of the pre-filter element can be maintained. Through such a setting, the clean water can be backwashed into the pre-filter element, so that the pre-filter element maintains good filtering performance and intercepts large particles of impurities in a long-term and stable manner. The user does not need to frequently replace the pre-filter element, which reduces the cost of use and the trouble of maintenance.
Description
Technical Field
The utility model relates to the technical field of water purification systems, in particular to a water purification system with a back-flushing front-mounted filter element.
Background
At present, although the water purifier has been moved into thousands of households, a lot of difficult problems still face, generally the water purifier is multistage filtration, and raw water first needs to intercept large granule impurity such as silt through leading filter core, then filters tiny particle and microorganism through membrane filter core, and the clean water or the pure water of coming out just can drink directly.
When the raw water is filtered, sediment or impurities in the raw water can be blocked by the front-end filter element, and the front-end filter element is easy to be blocked due to long-time water purifying operation. And the membrane filter element is also blocked by tiny particles, microorganisms and the like, so that the water purifying effect is reduced. And the intercepted sediment impurities, microorganisms and the like can propagate or ferment in the filter element, so that the filter element is fishy and smelly, secondary pollution is generated, and the water consumption health of a user is influenced.
Disclosure of utility model
The embodiment of the utility model aims to provide a water purifying system capable of backwashing a front filter element, so as to solve the technical problem that the front filter element and a membrane filter element are easy to be blocked due to time water purifying operation in the prior art.
The technical scheme adopted by the embodiment of the utility model for solving the technical problems is as follows:
The utility model provides a but water purification system of back flush leading filter core, includes:
The front filter element comprises a first water inlet and a first water outlet, the first water inlet is communicated with a water inlet pipe and a drain pipe, the water inlet pipe is provided with a first valve, and the drain pipe is provided with a second valve;
The membrane filter element comprises a second water inlet, a water purifying opening and a wastewater opening, wherein the second water inlet is communicated with the first water outlet, raw water preliminarily filtered in the front filter element can enter the membrane filter element through the second water inlet to be filtered again so as to obtain purified water, the water purifying opening is connected with a water storage barrel through a water purifying pipeline, and the water storage barrel is used for receiving and storing purified water flowing out of the water purifying opening of the membrane filter element;
And one end of the back flush pipeline is communicated with the water purification pipeline, the other end of the back flush pipeline is communicated with the first water outlet of the preposed filter element, and when the second valve is opened and the first valve is closed, the back flush pipeline is used for conveying the purified water in the water storage barrel to the first water outlet of the preposed filter element, so that the preposed filter element is back flushed and discharged through the sewage draining pipe.
In some embodiments, the other end of the back flush pipeline is communicated with the second water inlet of the membrane filter core, and purified water in the water storage barrel is conveyed to the second water inlet of the membrane filter core through the back flush pipeline, so that the membrane filter core is flushed and discharged through the membrane filter core waste water port.
In some embodiments, the membrane cartridge further comprises a waste pipe in communication with the waste water port to drain water flushing the membrane cartridge through the waste pipe.
In some embodiments, the waste is provided with a fourth valve to control the waste to close or open through the fourth valve.
In some embodiments, a one-way valve is disposed on the back flush line, the one-way valve being disposed toward the first water outlet and preventing water not filtered by the membrane cartridge from flowing into the water storage tub through the back flush line.
In some embodiments, the water purifying device further comprises a third valve, the water purifying port of the membrane filter element is communicated with the water storage barrel through the water purifying pipeline, one end of the back flushing pipeline is communicated with the water purifying port through the water purifying pipeline, a communication position between one end of the back flushing pipeline and the water purifying pipeline is used as a first junction, the third valve is arranged on the water purifying pipeline, and the third valve is located between the first junction and the water storage barrel.
In some embodiments, a pressure sensor is further included for detecting a water pressure value within the water storage tub.
In some embodiments, the water storage device further comprises a controller, wherein the second valve is an electromagnetic valve, and the controller is electrically connected with the second valve, so that the controller controls the second valve to be opened or closed when the pressure sensor detects that the water pressure value in the water storage barrel reaches a preset value;
The first valve is an electromagnetic valve, and the controller is electrically connected with the first valve so as to control the first valve to be opened or closed through the controller.
In some embodiments, water within the water storage bucket may be backflushed through the clean water line to the membrane cartridge and the pre-cartridge and drained through the drain pipe and/or the waste pipe.
In addition, the utility model provides a water purification system capable of backwashing the pre-filter element, which comprises:
The front filter element comprises a first water inlet and a first water outlet, the first water inlet is communicated with a water inlet pipe and a drain pipe, the water inlet pipe is provided with a first valve, and the drain pipe is provided with a second valve;
The membrane filter element comprises a second water inlet, a water purifying opening and a wastewater opening, wherein the second water inlet is communicated with the first water outlet, raw water preliminarily filtered in the front filter element can enter the membrane filter element through the second water inlet to be filtered again so as to obtain purified water, the water purifying opening is connected with a water storage barrel through a water purifying pipeline, and the water storage barrel is used for receiving and storing purified water flowing out of the water purifying opening of the membrane filter element;
One end of the back flush pipeline is communicated with the water purification pipeline, the other end of the back flush pipeline is communicated with the first water outlet of the preposed filter element, and when the second valve is opened and the first valve is closed, the back flush pipeline is used for conveying the purified water in the water storage barrel to the first water outlet of the preposed filter element, so that the preposed filter element is back flushed and discharged through the drain pipe;
One end of the waste water pipe is communicated with the waste water port of the membrane filter core, and a fourth valve is arranged on the waste water pipe;
A pressure sensor for detecting a water pressure value in the water storage tub, and
And the controller is electrically connected with the first valve and the second valve, so that the first valve is controlled to be closed and the second valve is controlled to be opened through the controller.
Compared with the prior art, in the water purification system with the back-washable pre-filter element, when the back-washing of the pre-filter element is needed, the first valve is closed, and the second valve is opened. Thereby preventing raw water from continuously entering the front filter element and preparing for pollution discharge. The purified water in the water storage barrel is conveyed to the first water outlet of the front filter element through a purified water pipeline and a back flushing pipeline. The purified water reversely flows through the front filter element to flush the impurities intercepted before, and the water carrying the impurities is discharged through the blow-down pipe, so that the back flushing of the front filter element is completed. After the back flushing is finished, the normal filtering state can be restored. By this periodic back flushing, good performance of the pre-filter element can be maintained. Through such setting, can realize the leading filter core of water purification backwash for leading filter core keeps good filtering quality, intercepts large granule impurity steadily for a long time, and the user need not frequently change leading filter core, has reduced use cost and has maintained trouble.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures do not depict a limitation on the scale unless expressly stated otherwise.
Fig. 1 is a schematic diagram of a water purification system with a back-washable pre-filter element.
The marks in the figure:
100. a water purifying system capable of backwashing the front filter element; 10, a pre-filter element, 101, a first water inlet, 102, a first water outlet, 103, a water inlet pipe, 1031, a first valve, 104, a sewage pipe, 1041, a second valve, 20, a membrane filter element, 201, a second water inlet, 202, a water purifying port, 203, a waste water port, 204, a water purifying pipeline, 2041, a third valve, 205, a waste water pipe, 2051, a fourth valve, 30, a water storage barrel, 40, a back flushing pipeline, 401, a one-way valve, 402, a first junction and 50, and a pressure sensor.
Detailed Description
In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "connected" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. The terms "upper," "lower," "left," "right," "upper," "lower," "top," and "bottom," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
A water purification system 100 with a back-flushable pre-filter cartridge according to an embodiment of the present application will be described in detail with reference to fig. 1.
Referring to fig. 1 together, fig. 1 is a schematic structural diagram of a water purifying system with a back-flushing front-end filter element according to the present utility model. The water purification system 100 with the back-flushing pre-filter element provided by one embodiment of the utility model comprises a pre-filter element 10, a membrane filter element 20 and a back-flushing pipeline 40. The pre-filter element 10 comprises a first water inlet 101 and a first water outlet 102, the first water inlet 101 is communicated with an external water source to enable the external water source to enter the pre-filter element 10 through the first water inlet 101, the first water inlet 101 is communicated with a water inlet pipe 103 and a drain pipe 104, the water inlet pipe 103 is provided with a first valve 1031, the drain pipe 104 is provided with a second valve 1041, the membrane filter element 20 comprises a second water inlet 201, a water purifying port 202 and a wastewater port 203, the second water inlet 201 is communicated with the first water outlet 102, raw water preliminarily filtered in the pre-filter element 10 can enter the membrane filter element 20 through the second water inlet 201 to be filtered again to obtain purified water, the water purifying port 202 is connected with a water storage barrel 30 through a water purifying pipeline 204, the water storage barrel 30 is used for receiving and storing purified water flowing out of the water purifying port 202 of the membrane filter element 20, one end of the back flushing pipeline 40 is communicated with the water purifying pipeline 204, the other end of the back flushing pipeline 40 is communicated with the first water outlet 102 of the pre-filter element 10, when the second valve 1041 is opened, the first valve 1031 is closed, the purified water in the back flushing pipeline 30 is conveyed to the first water outlet 102 of the pre-filter element 10 through the back flushing pipeline 30, and thus the pre-filter element 10 is discharged through the drain pipe 104.
When the raw water needs to be filtered, the first valve 1031 is opened at this time, the raw water can enter the pre-filter element 10 through the first water inlet 101 through the water inlet pipe 103 for preliminary filtration, so that the large-particle impurities are filtered, and then the raw water subjected to preliminary filtration through the pre-filter element 10 flows out from the first water outlet 102 and enters the membrane filter element 20 through the second water inlet 201. The membrane filter 20 is subjected to secondary filtration, and micro impurities such as bacteria, viruses, organic matters, heavy metals and the like are further trapped, so that the obtained purified water flows out of the water purifying port 202. The clean water flowing out of the clean water port 202 of the membrane filter cartridge 20 enters the water storage barrel 30 through the clean water pipeline 204 to be stored for use by a user.
In this embodiment, when backflushing of the pre-cartridge 10 is desired, the first valve 1031 is closed and the second valve 1041 is opened. So that raw water is prevented from continuing to enter the pre-cartridge 10 while ready for blowdown preparation. The clean water in the water storage bucket 30 is delivered to the first water outlet 102 of the pre-filter cartridge 10 through the clean water pipeline 204 and the back flush pipeline 40. The purified water reversely flows through the pre-filter element 10 to flush the impurities intercepted before, and the water carrying the impurities is discharged through the blow-down pipe 104, thereby finishing the back flushing of the pre-filter element 10. After the back flushing is finished, the normal filtering state can be restored. By this periodic back flushing, good performance of the pre-cartridge 10 can be maintained. Through such a setting, can realize that the water purification is back-flushed leading filter core 10 for leading filter core 10 keeps good filtering quality, intercepts large granule impurity steadily for a long time, and the user need not frequently change leading filter core 10, has reduced the trouble of use cost and maintenance.
In some embodiments, the other end of the backwash line 40 communicates with the second water inlet 201 of the membrane cartridge 20, and the clean water in the water storage tank 30 is delivered to the second water inlet 201 of the membrane cartridge 20 through the backwash line 40 to flush the membrane cartridge 20 and drain through the membrane cartridge 20 waste port 203.
When the membrane filter cartridge 20 needs to be washed, clean water in the water storage tank 30 can flow to the second water inlet 201 of the membrane filter cartridge 20 through the backwash pipeline 40. The purified water enters the membrane cartridge 20 from the second water inlet 201 and flows through the inside of the membrane cartridge 20 in the opposite direction to that in the normal filtration. This reverse flow of water flushes contaminants adhering to the membrane surface and within the membrane pores, and this contaminant-laden water is discharged from the waste water port 203 of the membrane cartridge 20. Thereby completing the flushing of the membrane filter element 20 and maintaining the cleaning and good performance of the membrane filter element 20.
The back flush pipeline 40 can simultaneously guide the purified water in the water storage barrel 30 into the pre-filter element 10 and the membrane filter element 20 respectively, so that back flush operation is performed on the pre-filter element 10 and the membrane filter element 20.
In some embodiments, the membrane cartridge 20 further comprises a waste pipe 205, the waste pipe 205 being in communication with the waste port 203 to drain water flushing the membrane cartridge 20 through the waste pipe 205.
When the membrane cartridge 20 is washed, the washing water carries contaminants washed from the membrane cartridge 20 out of the waste water port 203, and at this time, the waste water can be discharged to the outside through the waste water pipe 205 communicating with the waste water port 203, and in addition, the water in the water storage tank 30 can be backwashed to the membrane cartridge 20 and the pre-cartridge 10 through the water purifying pipe 204 and discharged through the drain pipe 104 and/or the waste water pipe 205.
In some embodiments, the waste 205 is provided with a fourth valve 2051 to control the amount of flow rate of water through the waste 205 by controlling the amount of opening of the fourth valve 2051. The fourth valve 2051 may be closed to prevent the purified water in the membrane cartridge 20 from being discharged through the wastewater pipe 205 when a normal filtering operation is performed, and the fourth valve 2051 may be opened to allow the wastewater washed out of the membrane cartridge 20 to be discharged through the wastewater pipe 205 when a back washing operation is performed.
In some embodiments, the back flush line 40 is provided with a one-way valve 401, and the one-way valve 401 is disposed towards the first water outlet 102, so as to ensure that the back flush water flows from the water storage tank 30 to the pre-filter element 10 according to a predetermined direction, and prevent the water which is not filtered by the membrane filter element 20 from flowing into the water storage tank 30 through the back flush line 40.
When the pre-filter element 10 is backwashed, the purified water in the water storage tank 30 flows to the first water outlet 102 of the pre-filter element 10 through the backwash pipeline 40 under pressure. At this time, due to the existence of the one-way valve 401 and the arrangement of the one-way valve 401 towards the first water outlet 102, the purified water can smoothly pass through the one-way valve 401 to provide a flushing water source for the back flushing of the pre-filter element 10, and the flushed sewage is discharged through the sewage discharge pipe 104. In the back flushing process, if the situation that the water flow is possibly reversed due to a certain reason (such as local pressure change caused by blockage of the drain pipe 104, etc.) occurs, the water cannot reversely flow back to the water storage barrel 30 through the one-way valve 401 due to the one-way conduction characteristic of the one-way valve 401, so that the pollution of sewage to the purified water in the water storage barrel 30 can be effectively prevented. Through the arrangement, when the front filter element 10 is backwashed, sewage is prevented from flowing back to the water storage barrel 30 through the backwash pipeline 40, water which is purified originally is polluted, clean water in the water storage barrel 30 is ensured to be always kept, and the safety of drinking water used by users is ensured.
In some embodiments, the water purifying port 202 of the membrane filter cartridge 20 is communicated with the water storage tank 30 through the water purifying pipeline 204, one end of the back flushing pipeline 40 is communicated with the water purifying port 202 through the water purifying pipeline 204, a communication position between one end of the back flushing pipeline 40 and the water purifying pipeline 204 is used as a first junction 402, the third valve 2041 is arranged on the water purifying pipeline 204, and the third valve 2041 is located between the first junction 402 and the water storage tank 30.
The third valve 2041 is disposed on the water purifying pipeline 204, the third valve 2041 is located between the first junction 402 and the water storage tank 30, the third valve 2041 may be an electromagnetic valve, when the water purifying system is used for water production, the third valve 2041730 is opened to enable the purified water flowing out of the purified water port 202 of the membrane filter core 20 to flow into the water storage tank 30 through the water purifying pipeline 204, and when the purified water is flushed back, the third valve 2041 is opened to enable the purified water in the water storage tank 30 to back flush the pre-filter core 10 through the back flush pipeline 40 and discharge the purified water through the blow-down pipe 104, and the membrane filter core 20 is forward flushed and back flushed through the purified water pipeline 204 and the back flush pipeline 40 and discharged through the waste water pipe 205.
In some embodiments, the water purification system 100 of the backflushing pre-cartridge further includes a pressure sensor 50 and a controller, the pressure sensor 50 being configured to detect a water pressure value within the water storage tank 30. The second valve 1041 is an electromagnetic valve, and the controller is electrically connected with the second valve 1041, so that the controller controls the second valve 1041 to open or close when the pressure sensor 50 detects that the water pressure value in the water storage barrel 30 reaches a preset value, and the first valve 1031 is an electromagnetic valve, and the controller is electrically connected with the first valve 1031, so that the controller controls the first valve 1031 to open or close.
The pressure sensor 50 may be installed in the water storage tub 30 or at a suitable position in communication with the water path inside the water storage tub 30, so that the water pressure inside the water storage tub 30 can be continuously detected.
The pressure of the water storage barrel 30 gradually rises along with the injection of the purified water, when the pressure sensor 50 detects that the pressure reaches a preset value, the controller controls the first valve 1031 to be closed, and controls the second valve 1041, the third valve 2041 and the fourth valve 2051 to be opened, at this time, the purified water in the water storage barrel 30 is respectively led into the pre-filter element 10 and the membrane filter element 20 through the purified water pipeline 204 and the back flush pipeline 40, and then the back flush operation is performed on the pre-filter element 10 and the membrane filter element 20. The sediment, impurities and microorganisms intercepted in the pre-filter element 10 can be discharged through the drain pipe 104, and the tiny particles and microorganisms in the membrane filter element 20 can be discharged through the waste water pipe 205. When the water pressure of the water storage tub 30 reaches a preset condition, the second valve 1041, the third valve 2041 and the fourth valve 2051 are controlled to be closed, the clean water backwash is stopped, the pre-filter cartridge 10 and the membrane filter cartridge 20 are completely soaked by the clean water, and the remaining clean water in the water storage tub 30 is used for the daily life of the user.
In some embodiments, the water purification system 100 of the back-washable pre-filter cartridge further comprises a water pump (not shown in the figures) for pumping an external water source into the first water inlet 101 of the pre-filter cartridge 10 via the water inlet pipe 103. The raw water after preliminary filtration of the pre-filter element 10 flows out through the first water outlet 102 and enters the membrane filter element 20 for secondary filtration. The water pump can provide a stable pressure to the raw water so that the raw water can enter the membrane cartridge 20 at a proper flow rate and pressure, thereby achieving effective filtration.
In addition, the utility model further provides a water purification system 100 capable of backwashing the pre-filter element, which comprises the pre-filter element 10, the membrane filter element 20, a backwashing pipeline 40, a waste water pipe 205, a pressure sensor 50 and a controller, wherein the pre-filter element 10 comprises a first water inlet 101 and a first water outlet 102, the first water inlet 101 is communicated with a water inlet pipe 103 and a sewage pipe 104, the water inlet pipe 103 is provided with a first valve 1031, the sewage pipe 104 is provided with a second valve 1041, the membrane filter element 20 comprises a second water inlet 201, a water purifying port 202 and a waste water port 203, the second water inlet 201 is communicated with the first water outlet 102, raw water which is preliminarily filtered in the pre-filter element 10 can enter the membrane filter element 20 through the second water inlet 201 to be filtered again to obtain purified water, the water outlet 202 is connected with a water storage barrel 30 through a water purifying pipeline 204, the water storage barrel 30 is used for receiving and storing purified water flowing out of the water port 202 of the membrane filter element 20, one end of the backwashing pipeline 40 is communicated with the water purifying pipeline 204, the other end of the water inlet pipe is communicated with the first water outlet 102 of the pre-filter element 10, when the second valve 1041 is opened, the first valve 1031 is closed, the water inlet 205 is communicated with the first valve 1031, raw water is conveyed to the water in the water storage barrel 30 through the water storage barrel 205 through the water inlet pipe 205 through the water inlet 201 and the water inlet 1031 to the water outlet 205 through the first water pipe 1031, the water pipe 205 is electrically connected with the waste water pipe 205, the control valve 205 is electrically connected with the waste water pipe 50, and the waste water pipe 50 is electrically connected with the first valve 104, and the water pipe is opened through the control valve 1031.
In this embodiment, the pressure sensor 50 may be installed in the water storage tub 30 or at a suitable position in communication with the water path inside the water storage tub 30, so that the water pressure inside the water storage tub 30 can be continuously detected. When the pressure sensor 50 detects that the pressure reaches a preset value, the controller controls the first valve 1031 to be closed and controls the second valve 1041 to be opened, and at this time, purified water in the water storage barrel 30 guides purified water in the water storage barrel 30 into the pre-filter element 10 through the back flushing pipeline 40, so that back flushing operation is performed on the pre-filter element 10. At this time, sediment, impurities and the like intercepted in the front filter element 10 can be washed
It should be specifically noted that, the water purification system 100 with a back-washable pre-filter element provided in the embodiment of the present utility model only shows a portion related to the technical problem to be solved in the embodiment of the present utility model, and it is to be understood that the water purification system 100 with a back-washable pre-filter element provided in the embodiment of the present utility model further includes other structures for implementing the water purification system 100 with a back-washable pre-filter element, including, but not limited to, a pipe connected to the first water outlet, the second water inlet, an external water source connected to the first water inlet, and the like.
It should finally be noted that the above embodiments are only intended to illustrate the technical solution of the present utility model and not to limit it, that the technical features of the above embodiments or of the different embodiments may be combined in any order, and that many other variations in the different aspects of the present utility model as described above exist, which are not provided in details for the sake of brevity, and that, although the present utility model is described in the detailed description with reference to the foregoing embodiments, it should be understood by those skilled in the art that modifications may be carried out to the technical solution described in the foregoing embodiments or to the equivalent substitution of some of the technical features thereof, where these modifications or substitutions do not depart from the essence of the corresponding technical solution from the scope of the technical solution of the embodiments of the present utility model.
Claims (10)
1. A water purification system (100) for backflushing a pre-cartridge, comprising:
The front filter element (10) comprises a first water inlet (101) and a first water outlet (102), wherein the first water inlet (101) is communicated with a water inlet pipe (103) and a blow-down pipe (104), the water inlet pipe (103) is provided with a first valve (1031), and the blow-down pipe (104) is provided with a second valve (1041);
The membrane filter element (20) comprises a second water inlet (201), a water purifying opening (202) and a waste water opening (203), wherein the second water inlet (201) is communicated with the first water outlet (102), raw water preliminarily filtered in the pre-filter element (10) can enter the membrane filter element (20) through the second water inlet (201) to be filtered again so as to obtain purified water, the water purifying opening (202) is connected with a water storage barrel (30) through a water purifying pipeline (204), and the water storage barrel (30) is used for receiving and storing purified water flowing out of the water purifying opening (202) of the membrane filter element (20);
And one end of the back flush pipeline (40) is communicated with the water purification pipeline (204), the other end of the back flush pipeline (40) is communicated with the first water outlet (102) of the pre-filter element (10), and when the second valve (1041) is opened and the first valve (1031) is closed, the back flush pipeline (40) is used for conveying purified water in the water storage barrel (30) to the first water outlet (102) of the pre-filter element (10) so as to back flush the pre-filter element (10) and discharge the purified water through the drain pipe (104).
2. The water purification system (100) of a back-washable pre-filter cartridge of claim 1, wherein the other end of the back-flush line (40) is in communication with the second water inlet (201) of the membrane filter cartridge (20), and purified water in the water storage tank (30) is delivered to the second water inlet (201) of the membrane filter cartridge (20) through the back-flush line (40), thereby flushing the membrane filter cartridge (20) and being discharged via the membrane filter cartridge (20) waste water port (203).
3. The water purification system (100) of a back-washable pre-cartridge of claim 2, said membrane cartridge (20) further comprising a waste pipe (205), said waste pipe (205) being in communication with said waste water port (203) to drain water washing said membrane cartridge (20) through said waste pipe (205).
4. A water purification system (100) with back-washable pre-filter cartridge according to claim 3, characterized in that the waste pipe (205) is provided with a fourth valve (2051) to control the closing or opening of the waste pipe (205) by means of the fourth valve (2051).
5. The water purification system (100) of a back-washable pre-filter cartridge of claim 1, wherein a one-way valve (401) is provided on the back-washing line (40), the one-way valve (401) is provided to flow to the first water outlet (102) and prevents water that is not filtered by the membrane cartridge (20) from flowing into the water storage tub (30) through the back-washing line (40).
6. The water purification system (100) of a back-flushable pre-cartridge of claim 1, further comprising a third valve (2041), wherein one end of the back-flush line (40) is in communication with the water purification port (202) through the water purification line (204), and wherein a communication location between one end of the back-flush line (40) and the water purification line (204) is a first junction (402), wherein the third valve (2041) is disposed on the water purification line (204), and wherein the third valve (2041) is located between the first junction (402) and the water storage tank (30).
7. The backflushing water purification system (100) according to any one of claims 1 to 6, further comprising a pressure sensor (50), the pressure sensor (50) being configured to detect a water pressure value within the water storage tank (30).
8. The water purification system (100) of a back-washable pre-filter cartridge of claim 7, further comprising a controller, said second valve (1041) being a solenoid valve, said controller being electrically connected to said second valve (1041) such that said controller controls said second valve (1041) to open or close when said controller detects that the water pressure in said water storage tub (30) reaches a preset value according to said pressure sensor (50);
The first valve (1031) is an electromagnetic valve, and the controller is electrically connected with the first valve (1031) so as to control the first valve (1031) to be opened or closed through the controller.
9. A water purification system (100) with back-flushable pre-filter cartridge according to claim 3, characterized in that water in the water storage tank (30) can be back-flushed through the water purification line (204) to the membrane cartridge (20) and the pre-filter cartridge (10) and discharged through the drain pipe (104) and/or the waste pipe (205).
10. A water purification system (100) for backflushing a pre-cartridge, comprising:
The front filter element (10) comprises a first water inlet (101) and a first water outlet (102), wherein the first water inlet (101) is communicated with a water inlet pipe (103) and a blow-down pipe (104), the water inlet pipe (103) is provided with a first valve (1031), and the blow-down pipe (104) is provided with a second valve (1041);
The membrane filter element (20) comprises a second water inlet (201), a water purifying opening (202) and a waste water opening (203), wherein the second water inlet (201) is communicated with the first water outlet (102), raw water preliminarily filtered in the pre-filter element (10) can enter the membrane filter element (20) through the second water inlet (201) to be filtered again so as to obtain purified water, the water purifying opening (202) is connected with a water storage barrel (30) through a water purifying pipeline (204), and the water storage barrel (30) is used for receiving and storing purified water flowing out of the water purifying opening (202) of the membrane filter element (20);
a back flush line (40), one end of the back flush line (40) is communicated with the water purification line (204), the other end is communicated with the first water outlet (102) of the pre-filter element (10), and when the second valve (1041) is opened and the first valve (1031) is closed, the back flush line (40) is used for conveying the purified water in the water storage barrel (30) to the first water outlet (102) of the pre-filter element (10), so that the pre-filter element (10) is back flushed and discharged through the drain pipe (104);
A waste pipe (205), wherein one end of the waste pipe (205) is communicated with a waste water port (203) of the membrane filter core (20), and a fourth valve (2051) is arranged on the waste pipe (205);
The water storage device comprises a water storage barrel (30), a pressure sensor (50) and a controller, wherein the pressure sensor (50) is used for detecting the water pressure value in the water storage barrel (30), and the controller is electrically connected with the first valve (1031) and the second valve (1041) so as to control the first valve (1031) to be closed and the second valve (1041) to be opened through the controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422729008.3U CN223357451U (en) | 2024-11-09 | 2024-11-09 | A water purification system capable of backwashing a pre-filter element |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202422729008.3U CN223357451U (en) | 2024-11-09 | 2024-11-09 | A water purification system capable of backwashing a pre-filter element |
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| CN223357451U true CN223357451U (en) | 2025-09-19 |
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Effective date of registration: 20250930 Address after: 066000 Hebei Province, Qinhuangdao City, Funing District, Licheng Street, North Business Street, No. 96 North One Road Patentee after: Qinhuangdao Qiushi Water Purification Equipment Co.,Ltd. Country or region after: China Address before: 066000 Hebei Province Qinhuangdao City Funing District Li Hua Villa Building 1 Unit 1 401 Patentee before: Qinhuangdao Caleb Water Purification Equipment Co.,Ltd. Country or region before: China |