TWM642822U - Filter cartridge structure capable of backwashing to achieve thorough cleaning - Google Patents

Abstract

A completely clean filter core structure for backwashing, the filter core includes a filter cartridge and a flow disturbance unit, the filter cartridge is equipped with a filter unit inside, the filter cartridge is provided with a first through hole and a second through hole, The first through hole communicates with the interior of the filter unit, the first through hole is used for the output of the filtered clean water of the filter unit, and also for the inflow of backwash water, and the second through hole leads to the outside of the filter unit , the second through hole is used for the inflow of raw water, and at the same time for the discharge of backwash water flow, and the turbulence unit is arranged on the inner side of the filter cartridge. When backwashing, the partial swirling water flow generated by the turbulence unit will form a back pressure effect, which will assist the backwashing water to push towards the head end of the filter unit, increasing the pressure difference between the head and the tail of the filter element to form different internal and external pressure differences, and then the filter element will be backwashed. During the process, the same cleaning and cleaning effect at both ends of the filter element can be achieved at nearly the same time, and the backwashing reducibility is improved.

Description

Backwash completely clean filter structure

This creation is about a filter element structure design, in particular, it refers to a filter element structure in which the partial swirling water flow generated by the turbulence unit exhibits a back pressure effect and assists the backwash water flow to the head end of the filter unit.

Generally, after a period of use of commercially available water purifiers, since the mesh gap of the filter material in the filter element itself is filled with attached particle deposits, resulting in reduced water filtration efficiency, it is necessary to remove and clean the filter material regularly or It is relatively cumbersome to use and maintain when replacing with a new product, and it is not in line with economic benefits.

In order to improve the above-mentioned shortcomings in the use of water purifiers, the industry has developed new water purification products, such as Taiwan Patent Publication No. M474561 "Manual Cleaning Switching Device for Filter Elements of Water Purifiers". The main purpose is to connect the water inlet hole with the filter cartridge under normal conditions, and input the raw water from the pipe body into each filter cartridge for filtration, and then output the clean water through the pipe body connected to the water outlet hole for use; if you want to clean the filter element, dial Turn the switching valve on one side to close the water inlet hole and lead to the drain hole, and use the clean water filtered by the filter element on the other side to flow into the side filter cartridge for reverse flushing, and the sewage after backwashing is discharged from the pipe body of the drain hole , that is, backwashing by changing the direction of water flow, commonly known as backwash cleaning.

Although this patented technical means improves the conventional water purifiers that require frequent replacement of filter cores It is troublesome to prolong the service life of the filter element, and it does not need to consume electricity. However, in the general backwash process, the tail end of the filter element is easier to clean because it bears the impact of the greater water pressure of the backwash water flow. The impact force of the high water pressure removes the impurities in the filter core. The sieve holes of the filter core are penetrated by the water flow and the backwash water pressure of the filter material is relieved, which will cause the water flowing through the head end of the filter core to quickly flow through the surface of the filter material, and As a result, the backwash water flow cannot effectively pass through the sieve holes of the filter material, resulting in poor backwash cleaning effect and the head end position is not cleaned, that is, during the backwash process, the head end of the filter element has less impact due to water pressure , unable to backwash, the cleanliness of backwashing is poor, and it cannot be fully backwashed and completely cleaned. Therefore, the backwash effect of this part is not satisfactory due to the structure of the filter element, and there is indeed room for improvement.

Yes, based on the concept of continuous product research and innovation, the author of this work is based on years of practical experience in product design and development, as well as active research and development thinking, and through countless actual tests and experiments, this creation came into being.

The purpose of this creation is to provide a completely clean filter element structure for backwashing. The partial swirling water flow generated by the turbulence unit presents a back pressure effect, which causes different degrees of pressure at the head and tail ends of the filter element to be cleaned. The pressure difference between the inside and outside assists the backwash water to flow through the filter core structure that is pushed to the head end of the filter unit. Compared with the traditional backwash process, under the same water pressure conditions and the same backwash time control, more complete and reliable results are obtained. backwash cleaning effect.

In order to achieve the above-mentioned purpose, this invention creates a completely clean filter element structure for backwashing, and is provided with a filter element. The filter element structure is composed of a filter cartridge, a turbulence unit and a filter unit installed therein. It is characterized in that: The filter cartridge is equipped with at least one filter unit inside, and the filter cartridge is provided with a first through hole and a second through hole, the first through hole communicates with the inside of the filter unit, and the first through hole is used for the filter unit The filtered clean water is output, and at the same time, the backwash water flows in. The second through hole Leading to the outside of the filter unit, the second through hole is used for the inflow of raw water and the discharge of backwash water; the turbulence unit is arranged on the inner side of the filter cartridge.

When the backwashing water flows into the filter cartridge, it will hit the spoiler unit, and the partial swirling water flow generated by the spoiler unit will form a back pressure effect, assisting the backwashing water to push to the head of the filter unit, and push it up continuously to remove Impurities on the surface of the filter unit increase the pressure difference between the head end and the tail end of the filter element, and then the filter element achieves the same cleaning and cleaning effect at both ends of the filter element at nearly the same time during the backwashing process, improving backwashing reductive.

Other features and specific embodiments of the invention can be further understood in the following detailed description with accompanying drawings.

1: filter core

1a: filter core

10: filter cartridge

11: The first through hole

12: Second through hole

13: Connector

20: spoiler unit

21, 22: fins

30: Filter unit

40:Pipe fitting assembly unit

41: Positioning plate

42: base

43: water inlet pipe body

44: Outlet pipe body

45: Drain pipe body

46: Switching valve

Picture 1 is the three-dimensional appearance picture of this creation.

Figure 2 is an exploded view of the structure of the filter core and pipe fitting assembly unit of this creation.

Figure 3 is an exploded view of the three-dimensional structure of the filter core of this creation.

Fig. 4 is a sectional view of the filter core of this invention entering water for backwashing.

Figure 5 is a schematic diagram of the water flow guide for the backwashing procedure of the filter element of this creation.

The 6th figure is the second construction embodiment of this creation and its use example figure.

The 7th figure is the various structure embodiment diagrams of the spoiler unit of this creation.

The first construction embodiment of this creation:

Please refer to Fig. 1 to Fig. 3, the structure of the completely clean filter element 1 for backwashing in this invention includes a filter cartridge 10, a turbulence unit 20 and a filter unit 30 installed therein.

The filter cartridge 10 has at least one filter unit 30 inside, the filter cartridge 10 is provided with a first through hole 11 and a second through hole 12, the first through hole 11 communicates with the inside of the filter unit 30, the first through hole The hole 11 is used for the output of the purified water filtered by the filter unit 30, and also for the inflow of the backwash water flow. The second through hole 12 leads to the outside of the filter unit 30. The second through hole 12 is used for the inflow of raw water. , but also for the discharge of backwash water flow.

The turbulence unit 20 is disposed on the inner side of the filter cartridge 10 .

In one embodiment, the flow turbulence unit 20 is a cylinder, and a plurality of fins 21 protruding upwards are provided on the ring side surface of the cylinder.

In one embodiment, the flow turbulence unit 20 is a cylinder, and a plurality of annular fins 22 are arranged at the bottom of the cylinder.

In one embodiment, the turbulence unit 20 and the filter cartridge 10 are integrally formed.

In one embodiment, the first through hole 11 and the second through hole 12 are disposed on a joint 13 through which the filter unit 30 is assembled. The joint 13 is disposed at the upper opening of the filter cartridge 10 .

In one embodiment, the first through hole 11 and the second through hole 12 communicate with a pipe fitting assembly unit 40, and the pipe fitting assembly unit 40 includes a positioning plate 41, a base 42, a water inlet pipe body 43, A water outlet pipe body 44, a drain pipe body 45, a switching valve 46, the positioning plate 41 is used to fix the filter core 1 on the wall where the filter device needs to be installed, and the base 42 is used to set the inlet Water pipe body 43, water outlet pipe body 44, drain pipe body 45 and switching valve 46, the water inlet pipe body 43 communicates with the second through hole 12 for raw water to flow into the filter core 1; the water outlet pipe body 44 communicates with the first The through hole 11 is used to output the clean water filtered by the filter unit 30; the drain pipe body 45 is used to discharge the water flow and impurities after the filter unit 30 has been backwashed; the switch valve 46 is used to selectively switch the water inlet pipe body 43 The second through hole 12 cannot be connected, and the second through hole 12 is connected to the drain pipe body 45 , so that the filter element 1 can be backwashed and cleaned.

The detailed structure of the pipe fitting assembly unit 40 has been recorded in detail in Taiwan Patent Publication No. M474561 "Manual Cleaning and Switching Device for Filter Cartridge of Water Purifier" cited in this case, and will not be repeated here.

The above is an introduction to the various components and composition methods of this creation, and then the usage examples, characteristics, and benefits of this creation are introduced as follows:

Please refer to Fig. 4 and Fig. 5, first select and switch the filter element 1 to the backwash cleaning mode through the switching valve 46.

When switching to the backwash cleaning mode, the water inlet pipe body 43 cannot be connected to the second through hole 12, and the raw water cannot be input into the filter cartridge 10, so the water outlet pipe body 44 conveys the filtered water from another filter core 1a in the first figure. The obtained clean water is input into the filter cartridge 10.

When the backwashing water flow is guided into the filter cartridge 10, it will hit the turbulence unit 20, and the partial swirling water flow generated by the turbulence unit 20 will form a back pressure effect, which will assist the backwashing water flow to push the head end of the filter unit 30 , continuously pushed upwards to remove the impurities attached to the surface of the filter unit 30, increasing the pressure difference between the head end and the tail end of the filter element 1 to form different internal and external pressure differences, and then the filter element 1 reaches the pressure at nearly the same time during the backwashing process. The same cleaning and cleaning effect at both ends of the filter element 1 improves the backwashing reducibility.

The second construction embodiment of this creation:

Please refer to shown in Figure 6, most of the structures of the second embodiment of the invention are the same as those of the first embodiment of the invention, the main difference is that the second through hole 12 is arranged below the filter cartridge 10; The section of the flow unit 20 is a cone-shaped cylinder; the filter unit 30 is a hollow fiber membrane or other filter materials.

The use characteristics and benefits of the second construction embodiment of this creation are introduced:

Please refer to Figure 6 (a) as shown in Figure 6. When this creation filters raw water, the filter element Impurities attached to the outer surface will be evenly accumulated on the surface of the filter unit 30 due to the action of water pressure.

Please refer to Fig. 6 (b) as shown, impurities are accumulated on the surface of the filter unit 30 on average.

Please refer to Figure 6 (c) as shown in Figure 6. When this creation is performing backwash cleaning, the inside of the filter unit 30 is unblocked. , a partial swirling water flow will be generated outside the filter core, which is a back pressure effect, and the auxiliary backwashing water will be pushed to the head end of the filter unit 30, and then pushed upwards to remove impurities on the surface of the filter unit 30, and the water flow after backwashing, Impurities can be effectively discharged.

Please refer to Figure 6 (d) as shown, this invention can improve backwashing reduction.

Various structural embodiments of the creative spoiler unit:

Please refer to Figure 7 (a), the turbulence unit 20 is a cylinder with a curved cross-section, when the backwash water flow hits the U-shaped end of the filter unit 30, the water flow is simultaneously squeezed through Sieve holes to remove impurities attached to the outside. At this time, because of the addition of the turbulence unit 20 in this example, this creation will generate a local swirling water flow outside the filter element, which is a back pressure effect, which can make the filter element 1 backwash During the process, the same cleaning and cleaning effects at both ends of the filter element 1 are achieved at nearly the same time.

Please refer to Fig. 7 (b) shown, the turbulence unit 20 is a cylinder with a trapezoidal cross-sectional shape, which can also achieve the same effect as the embodiment of (a).

Please refer to Fig. 7 (c) shown in Fig. 7, this turbulence unit 20 is the cylindrical body that the section shape is curved curved shape, can reach the same effect as Fig. (a) embodiment equally.

Please refer to Fig. 7 (d) shown, the turbulence unit 20 is a cylinder with an inclined surface at the bottom, which can also achieve the same effect as the embodiment of (a).

In summary, this creation can indeed achieve the expected purpose, and give full play to the actual Benefits, and increase the value of industrial use, has indeed met the requirements of patent applications, according to the law to file a patent application.

But the above-mentioned ones are only preferred embodiments of this creation, and should not limit the scope of implementation of this creation; therefore, all simple equivalent changes and modifications made according to the patent scope of this creation and the content of the new specification , all should still belong to the scope covered by this creation patent.

1: filter core

10: filter cartridge

11: The first through hole

12: Second through hole

13: Connector

20: spoiler unit

21, 22: fins

30: Filter unit

Claims (10)

A completely clean filter core structure for backwashing, said filter core structure is composed of a filter cartridge, a turbulence unit and a filter unit installed therein, and is characterized in that: The filter cartridge is equipped with at least one filter unit inside, and the filter cartridge is provided with a first through hole and a second through hole, the first through hole communicates with the inside of the filter unit, and the first through hole is used for the filter unit The filtered clean water is output, and at the same time, it is also used for the inflow of backwash water flow. The second through hole leads to the outside of the filter unit. The second through hole is used for the inflow of raw water, and also for the discharge of backwash water flow; The turbulence unit is arranged on the inner side of the filter cartridge. As described in item 1 of the scope of the patent application, the backwash completely clean filter element structure, wherein the turbulence unit is a cylinder, and a plurality of fins protruding upwards are provided on the side surface of the cylinder ring. The backwash completely clean filter element structure described in item 1 of the scope of the patent application, wherein a plurality of ring-shaped fins are arranged at the bottom of the cylinder. The completely clean filter core structure for backwashing as described in item 1 of the scope of the patent application, wherein the turbulence unit is integrally formed with the filter cartridge. As described in item 1 of the scope of the patent application, the backwashing and completely clean filter element structure, wherein the first through hole and the second through hole are arranged on a joint, and the filter unit is assembled through the joint, and the joint is arranged on The upper side opening of the filter cartridge. As described in item 1 of the scope of the patent application, the backwashing and completely clean filter element structure, wherein the first through hole and the second through hole are connected to a pipe fitting assembly unit, and the pipe fitting assembly unit includes a positioning plate, a Base, a water inlet pipe body, a water outlet pipe body, a drain pipe body, a switching valve, the positioning plate is used to fix the filter core in a position, the base is used to set the water inlet pipe body, water outlet pipe body, Drainage pipe body, switching valve, the water inlet pipe body communicates with the second through hole for the raw water to flow into the filter element, the The water outlet pipe body is connected with the first through hole for the output of the purified water filtered by the filter unit, the drain pipe body is used for the water flow and impurities after the filter unit has been backwashed, and the switching valve is used for selectively switching the The second through hole communicates with the drain pipe body, so that the filter core can be backwashed and cleaned. The backwash completely clean filter element structure described in item 1 of the patent scope of the application, wherein the second through hole is arranged under the filter cartridge. As described in item 1 of the scope of the patent application, the backwashing completely clean filter element structure, wherein the filter unit is a hollow fiber membrane. As described in item 1 of the scope of the patent application, the backwash completely clean filter element structure, wherein the cross-sectional shape of the flow disturbance unit is any one of cone, curved, trapezoidal, and arc curved cylinders. As described in item 1 of the scope of the patent application, the backwashing and completely clean filter element structure, wherein the turbulence unit is a cylinder with an inclined surface at the bottom.

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