阅读说明：本技术 圆筒式过滤*** (Cylinder type filtering water purifier ) 是由 马根昌 于 2019-11-25 设计创作，主要内容包括：本发明涉及一种圆筒式过滤净水器,包括有筒壳、过滤单元及进水管、排水管、净水管；所述过滤单元包括有过滤腔,在所述过滤腔中设置有过滤芯,所述过滤芯包括有转轴和滤筒；所述滤筒能够相对于转轴自由旋转；所述筒壳的轴线与所述转轴异面；所述过滤单元还包括有清洁条,所述清洁条、过滤芯、过滤腔形成的过滤单元与筒壳的内壁之间无缝接合；所述排水管与所述过滤单元一一匹配设置；沿出水方向观察,每个排水管与筒壳的连接口设置在过滤单元的前方；该净水器中的过滤组件结构新颖、原理独特,具有一定的自洁功能,能够较长时间的保持净水器的净水效果和出水速度,从而有效提高净水器中过滤组件的使用寿命。(The invention relates to a cylindrical filtering water purifier, which comprises a cylindrical shell, a filtering unit, a water inlet pipe, a water outlet pipe and a water purifying pipe, wherein the cylindrical shell is provided with a cylindrical shell; the filter unit comprises a filter cavity, a filter element is arranged in the filter cavity, and the filter element comprises a rotating shaft and a filter cartridge; the filter cartridge can freely rotate relative to the rotating shaft; the axis of the cylinder shell is different from the surface of the rotating shaft; the filter unit also comprises a cleaning strip, and the filter unit formed by the cleaning strip, the filter element and the filter cavity is seamlessly jointed with the inner wall of the cylinder shell; the drain pipes are matched with the filtering units one by one; viewed along the water outlet direction, the connecting port of each drain pipe and the cylinder shell is arranged in front of the filtering unit; the filtering component in the water purifier has the advantages of novel structure, unique principle and certain self-cleaning function, and can keep the water purifying effect and the water outlet speed of the water purifier for a long time, thereby effectively prolonging the service life of the filtering component in the water purifier.)

1. A cylinder type filtering water purifier comprises a cylinder shell (1), a filtering unit (2), a water inlet pipe (11), a water outlet pipe (12) and a water purifying pipe (13); the water inlet pipe (11) is arranged at the front end of the cylinder shell (1), and the water purifying pipe (13) is arranged at the tail end of the cylinder shell (1); a normally closed pressure limiting valve (3) is arranged on the drain pipe (12); the method is characterized in that: the filter unit (2) comprises a filter cavity (21), and the filter cavity (21) is arranged on the inner wall of one side of the cylinder shell (1); a filter core (22) is arranged in the filter cavity (21), and the filter core (22) comprises a rotating shaft (5) and a filter cartridge (6); the two ends of the rotating shaft (5) are arranged in the inner wall of the cylinder shell (1), and the filter cylinder (6) can freely rotate relative to the rotating shaft (5); the surface of the filter cartridge (6) is kept in sliding contact with the filter chamber (21) during the rotation of the filter cartridge (6) relative to the rotation shaft (5); the axis of the cylinder shell (1) is opposite to the surface of the rotating shaft (5); the filter unit (2) further comprises a cleaning strip (7), the cleaning strip (7) is arranged on the inner wall of one side opposite to the filter cavity (21), and the cleaning strip (7) is in sliding fit with the surface of the filter cartridge (6); the filter unit (2) formed by the cleaning strip (7), the filter element (22) and the filter cavity (21) is in seamless joint with the inner wall of the cylinder shell (1); from the front end to the tail end of the cylinder shell (1), the filter units (2) are sequentially arranged in the cylinder shell (1), and the passing pore diameters of the filter cores (22) in the filter units (2) are sequentially reduced; the drain pipes (12) are connected to the barrel shell (1) in a bypassing manner, and the drain pipes (12) and the filter units (2) are arranged in a one-to-one matching manner; the connection port of each drain pipe (12) and the cartridge case (1) is arranged in front of the filter unit (2) as viewed in the water outlet direction.

2. The cylindrical filtration water purifier as recited in claim 1, wherein: the section of the cleaning strip (7) is wedge-shaped, the wide surface of the wedge is arc-surface-shaped and is tightly attached to the filter cylinder (6), and the narrow surface of the wedge is fixed on the inner wall of the cylinder shell (1) and is tightly attached to the rear of the drain pipe (12).

3. The cylindrical filtration water purifier as recited in claim 2, wherein: the water discharge pipes (12) incline towards the water outlet direction, and the axial line of each water discharge pipe (12) is parallel to the wedge surface of the corresponding cleaning strip (7).

4. The cylinder type filtration water purifier as claimed in claim 1, 2 or 3, wherein: the front end and the middle section of the cylinder shell (1) are provided with booster pumps (4).

5. The cylinder type filtration water purifier as claimed in claim 1, 2 or 3, wherein: the smaller the passing pore diameter of the filter element (22), the smaller the cylinder diameter of the filter cylinder (6).

Technical Field

The invention relates to the field of water purification, in particular to a water purifier.

Background

With the development of industry, water resources used by people are seriously polluted, and the quality of drinking water is sharply reduced nowadays; in order to ensure the health of water, a plurality of residents assemble the water purifier for families; the filtering membrane is one of the core elements of the water purifier, in the filtering membranes on the current market, the reverse osmosis membrane is one of the membrane elements capable of filtering smaller particles, the filtering size of the reverse osmosis membrane can even reach 0.0001 micron, harmful substances such as bacteria, microorganisms and the like in water are effectively filtered, and the water quality is ensured to be pure; because the membrane element is a disposable element, the membrane element is new at the initial installation, harmful impurities in water can be efficiently filtered, but a large amount of dust is attached to the membrane element after the membrane element is used for a period of time, the filtering effect of the membrane element is poor, the water pressure required during filtering is increased, and the water outlet speed and the water purifying effect of the water purifier are greatly reduced; in addition, most of the existing reverse osmosis membrane elements are spiral wound, in the water purification process, the purified water body can be collected to the central tube only by flowing along the porous support material for a long stroke, the water outlet speed is slow, and the required water pressure is high, so that the booster pump needs high power to work and generates large noise; the other hollow fiber type membrane element has higher production difficulty and higher price.

Disclosure of Invention

In order to solve the problems, the invention provides a cylindrical filtering water purifier, wherein a filtering component in the water purifier has a novel structure and a unique principle, has a certain self-cleaning function, and can keep the water purifying effect and the water outlet speed of the water purifier for a long time, so that the service life of the filtering component in the water purifier is effectively prolonged.

In order to solve the problems, the technical scheme adopted by the invention is as follows: the cylindrical filtering water purifier comprises a cylindrical shell, a filtering unit, a water inlet pipe, a water outlet pipe and a water purifying pipe; the water inlet pipe is arranged at the front end of the cylinder shell, and the water purifying pipe is arranged at the tail end of the cylinder shell; a normally closed pressure limiting valve is arranged on the drain pipe;

the filter unit comprises a filter cavity, and the filter cavity is arranged on the inner wall of one side of the cylinder shell; a filter element is arranged in the filter cavity and comprises a rotating shaft and a filter cylinder; the two ends of the rotating shaft are arranged in the inner wall of the cylinder shell, and the filter cylinder can freely rotate relative to the rotating shaft; the surface of the filter cartridge is kept in sliding contact with the filter chamber during the rotation of the filter cartridge relative to the rotating shaft;

the axis of the cylinder shell is different from the surface of the rotating shaft;

the filter unit also comprises a cleaning strip, the cleaning strip is arranged on the inner wall of one side opposite to the filter cavity, and the cleaning strip is in sliding fit with the surface of the filter cylinder; the filter unit formed by the cleaning strips, the filter element and the filter cavity is seamlessly jointed with the inner wall of the cylinder shell;

from the front end to the tail end of the cylinder shell, the filter units are sequentially arranged in the cylinder shell, and the passing aperture of the filter core in each filter unit is sequentially reduced;

the drain pipes are connected to the cylinder shell in a side-by-side mode, and the drain pipes and the filtering units are arranged in a one-to-one matching mode; the connection opening of each drain pipe to the cartridge housing is arranged in front of the filter unit, viewed in the direction of the outlet water.

The invention has the beneficial effects that: the raw water enters the front end of the cylinder shell from the water inlet pipe, the normally closed pressure limiting valve on the water discharge pipe is kept closed before the water pressure reaches a critical value, and the raw water is positioned between the front end of the cylinder shell and the first filtering unit; under the action of water pressure, large-size impurity particles in raw water are isolated and blocked, and small particulate matters continuously flow through the filter cartridge; along the water outlet direction, the passing pore diameters of the filter elements in the filter units are sequentially reduced, so that impurity particles in the raw water are gradually screened and filtered, and finally, the water body discharged from the water purifying pipe at the tail end of the cylinder shell is purified water after multi-stage filtration.

When the water pressure exceeds the critical value of the corresponding normally closed pressure limiting valve in the process that the raw water flows from the front end to the tail end of the cylinder shell, the normally closed pressure limiting valve is opened, so that the filtered and isolated waste water flows out of the drain pipe, and in the waste water flowing-out process, because the axis of the cylinder shell is different from the surface of the rotating shaft, the waste water generates tangential scouring force on the filter cylinder, so that the filter cylinder is driven to rotate relative to the rotating shaft; therefore, in the process of discharging the waste water for a long time, the filter cartridge rotates slowly relative to the rotating shaft; in the rotatory in-process, the surface of straining a section of thick bamboo and clean strip frictional contact, then the clean strip will strain a remaining large granule impurity in section of thick bamboo surface and clear away, effectively avoid large granule impurity to adhere to, plug up the surface of straining a section of thick bamboo, and then guarantee to strain the filtration circulation effect of a section of thick bamboo.

Therefore, when the filter cartridge is used, the filter cartridges in the filter units can automatically rotate under the action of waste water at all levels, so that the surfaces of the filter cartridges are automatically cleaned, the filter cartridges can efficiently filter and discharge water for a long time, and the problem that the filter cartridges are easy to cause small water discharge due to long service time is solved; thereby prolonging the service life of the filter cartridge; therefore, the water purifier has longer service cycle, more stable water yield and more excellent and stable filtering effect.

Preferably, the section of the cleaning strip is wedge-shaped, the wide surface of the wedge is arc-surface-shaped and is tightly attached to the filter cylinder, and the narrow surface of the wedge is fixed on the inner wall of the cylinder shell and is tightly attached to the rear part of the drain pipe; the wedge surface of the cleaning strip can be closer to the tangential direction of the filter cylinder, so that impurities can be conveniently removed, and meanwhile, the resistance of the waste water in the flowing process is reduced.

More preferably, the water discharge pipes are inclined towards the water outlet direction, and the axis of each water discharge pipe is parallel to the wedge surface of the corresponding cleaning strip; the structure can effectively ensure the flow velocity of the wastewater, further improve the tangential acting force of the wastewater on the filter cylinder and promote the efficient rotation of the filter cylinder.

Preferably, the front end and the middle section of the cylinder shell are provided with booster pumps; this structure can guarantee that each filter unit on the whole bobbin all has sufficient working water pressure to guarantee out the water effect.

Preferably, the smaller the passing pore diameter of the filter element, the smaller the cylinder diameter of the filter cylinder; the structure can reduce the path length of the purified water passing through the filter cartridge, thereby facilitating the efficient discharge of the purified water.

Drawings

FIG. 1 is a schematic cross-sectional view of one embodiment of the water purifier.

Detailed Description