CN108996772A - A kind of direct drinking composite filter element - Google Patents

Abstract

The present invention relates to a kind of water filtration core fields, more particularly to a kind of direct drinking composite filter element, including shell, water outlet and a plurality of water inlets on shell, each water inlet is set to the periphery of water outlet, filtrate housing is equipped in the shell, the filtrate housing upper end is equipped with filtered water inlet mouth, water inlet space is equipped between at the top of the upper end of the filtrate housing and case inside, hollow-fibre membrane is equipped in the filtrate housing, being cascading from the bottom to top between the outside and case inside of the filtrate housing has the first activated carbon nano fiber film, particle filtering material, second activated carbon nano fiber film.Resistance is larger, filter effect is undesirable when which solve existing filtration cores using activated carbon nano fiber film, the water outlet lesser technical problem of water flow.

Description

A composite filter element for direct drinking water

technical field

The invention relates to the field of water filter elements, in particular to a composite filter element for direct drinking water.

Background technique

There are many styles of existing water filter cores. Usually, a water inlet and a water outlet are provided, and water is used to flow through the filter material in the shell after entering the water inlet to achieve filtration, such as Chinese patent number: CN201420032098. 4 discloses a new type of filter device, which includes a housing and a filter material arranged in the housing. The housing is provided with a water inlet and a water outlet. The inside of the housing is provided with a serpentine flow channel. The serpentine The inlet of the flow channel communicates with the water inlet, the outlet of the serpentine flow channel communicates with the water outlet, and the filter material is arranged in the serpentine flow channel.

With the renewal and improvement of filter materials, the current filter materials mostly use nano-materials, activated carbon materials, etc. There is an existing composite nanofiber activated carbon material, which has excellent filtration performance, but its material is thinner, and the speed of water entry is often faster. If a conventional structure is adopted, the time for water to contact and filter will be shorter, and the filtration time will be shorter. The effect is not ideal, and it is easy to cause insufficient filtration. Existing methods are often wound into hollow rods for filtration, but with this arrangement, the resistance when water passes through is relatively large, and it is easy to cause low water flow and water pressure when the water is discharged.

Contents of the invention

The technical problem to be solved by the present invention is to provide a direct drinking water composite filter element with reasonable structure, good filtering effect, complete filtering and relatively large water flow.

In order to achieve the above object, the technical solution of the present invention is: a composite filter element for direct drinking water, comprising a housing, a water outlet located on the housing and a plurality of water inlets, each water inlet is located outside the circumference of the water outlet, the The housing is provided with a filter housing, the upper end of the filter housing is provided with a filter water inlet, a water inlet space is provided between the upper end of the filter housing and the inner top of the housing, and a hollow fiber membrane is provided inside the filter housing A first nano-activated carbon fiber membrane, a particle filter material, and a second nano-activated carbon fiber membrane are sequentially stacked between the outer side of the filter housing and the inner side of the housing from bottom to top.

Preferably, the upper part of the second nano activated carbon fiber membrane communicates with the water inlet space.

Preferably, an opening is provided at the upper end of the housing, an end cover is provided on the opening, and a pressure ring against the second nano-activated carbon fiber membrane is provided on the end cover.

Preferably, a protruding ring is provided outwardly at the lower part of the filter housing, and the lower end of the first nano-activated carbon fiber membrane leans against the protruding ring.

The above technical scheme has the following beneficial effects:

1. By adding granular filter material between the first nano-activated carbon fiber membrane and the second nano-activated carbon fiber membrane, the resistance can be effectively reduced and the size of the effluent water flow can be increased. Moreover, such a setting does not affect the filtering effect, and can even be changed by changing the particle filter. The material of the material is used to increase the filtering function, such as adding tourmaline balls to make the water molecule cluster smaller, eliminate harmful substances, etc.;

2. Let the water flow through the first nano-activated carbon fiber membrane, the particle filter material, the second nano-activated carbon fiber membrane, and the hollow fiber membrane, so that the filtering effect is ideal;

3. The setting of the water inlet space can make the water flow have a converging effect, so that the effect of entering the hollow fiber membrane is better, the filtering effect is stronger, and the utilization of the hollow fiber membrane is more complete;

4. Through the setting of the pressure ring, the first nano-activated carbon fiber membrane, the particle filter material, and the second nano-activated carbon fiber membrane can be squeezed, with better compactness and stronger stability;

5. Through the setting of the convex ring, the filter shell can be subjected to top pressure, so that there is a gap between the hollow fiber membrane and the water outlet, so that the filtered water can easily flow into the water outlet, making it more stable .

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic cross-sectional structure diagram of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Fig. 1 and Fig. 2, the present embodiment provides a composite filter element for direct drinking water, including a housing 1, a water outlet 11 provided on the housing 1 and a plurality of water inlets 12, and each water inlet 12 is located at the water outlet 11 On the outside of the circumference of the housing 1, a filter housing 2 is provided inside the housing 1, and a filter water inlet 22 is provided at the upper end of the filter housing 2, and an inlet is provided between the upper end of the filter housing 2 and the inner top of the housing 1 Water space 13, the filter housing 2 is provided with a hollow fiber membrane 3, and the first nano-activated carbon fiber membrane 4 and the particle filter are sequentially stacked between the outside of the filter housing 2 and the inside of the housing 1 from bottom to top. Material 5, the second nano activated carbon fiber membrane 6. The upper part of the second nano activated carbon fiber membrane 6 communicates with the water inlet space 13 . The upper end of the housing 1 is provided with an opening 14 , and the opening 14 is provided with an end cover 15 , and the end cover 15 is provided with a pressure ring 151 against the second nano-activated carbon fiber membrane 6 . The lower part of the filter housing 2 is provided with a protruding ring 23 outwards, and the protruding ring 23 abuts against the raised part 16 of the housing, so that there is a gap 21 between the hollow fiber membrane 3 and the inner bottom of the housing 1, To improve the water outlet efficiency, the lower end of the first nano-activated carbon fiber membrane 4 leans against the protruding ring 23 .

The water flow enters from the water inlet 12, flows through the first nano activated carbon fiber membrane 4, the particle filter material 5, and the second nano activated carbon fiber membrane 6, enters the water inlet space 13, then enters the filter water inlet 22, and flows through the hollow fiber membrane 3 , after flowing through from top to bottom, enter the hollow fiber membrane 3, and finally flow out from the water outlet 11.

The above-mentioned granular filter material can be tourmaline balls, calcium sulfite balls, medical stone balls, etc.; a support column can be arranged in the hollow part of the above-mentioned hollow fiber membrane. The above-mentioned seal rings need to be provided between the end cover and the housing, and on the water outlet on the housing, and seal rings can also be provided at other required positions. Since it is common knowledge, it will not be repeated here.

The above technical scheme has the following beneficial effects:

1. By adding granular filter material between the first nano-activated carbon fiber membrane and the second nano-activated carbon fiber membrane, the resistance can be effectively reduced and the size of the effluent water flow can be increased. Moreover, such a setting does not affect the filtering effect, and can even be changed by changing the particle filter. The material of the material is used to increase the filtering function, such as adding tourmaline balls to make the water molecule cluster smaller, eliminate harmful substances, etc.;

2. Let the water flow through the first nano-activated carbon fiber membrane, the particle filter material, the second nano-activated carbon fiber membrane, and the hollow fiber membrane, so that the filtering effect is ideal;

3. The setting of the water inlet space can make the water flow have a converging effect, so that the effect of entering the hollow fiber membrane is better, the filtering effect is stronger, and the utilization of the hollow fiber membrane is more complete;

4. Through the setting of the pressure ring, the first nano-activated carbon fiber membrane, the particle filter material, and the second nano-activated carbon fiber membrane can be squeezed, with better compactness and stronger stability;

5. Through the setting of the convex ring, the filter shell can be subjected to top pressure, so that there is a gap between the hollow fiber membrane and the water outlet, so that the filtered water can easily flow into the water outlet, making it more stable .

The above is only a preferred embodiment of the present invention, and equivalent changes made by those skilled in the art according to the claims all fall within the protection scope of the present case.

Claims (4)

1. a kind of direct drinking composite filter element, water outlet and a plurality of water inlets including shell, on shell, each water inlet are set In the periphery of water outlet, it is characterised in that: be equipped with filtrate housing in the shell, the filtrate housing upper end is equipped with filtering Water inlet, at the top of the upper end of the filtrate housing and case inside between be equipped with water inlet space, be equipped in the filtrate housing Empty fiber membrane, being cascading from the bottom to top between the outside and case inside of the filtrate housing has the first active carbon nanoparticles Tunica fibrosa, particle filtering material, the second activated carbon nano fiber film.

2. a kind of direct drinking composite filter element according to claim 1, it is characterised in that: the second activated carbon nano fiber film Top connection water inlet space.

3. a kind of direct drinking composite filter element according to claim 1, it is characterised in that: the shell upper end is equipped with opening, The opening is equipped with end cap, and the end cap, which is equipped with, compresses ring against the second activated carbon nano fiber film.

4. a kind of direct drinking composite filter element according to claim 3, it is characterised in that: the lower part of the filtrate housing is outside Equipped with a bulge loop, the lower end of the first activated carbon nano fiber film is resisted against on bulge loop.