Consumable-replacement-free liquid filter

Abstract

The utility model discloses a liquid filter free of consumable replacement, which comprises a total filter unit arranged in a machine body, the total filter unit is composed of a plurality of unit filter bags, the unit filter bags are arranged and combined regularly, and filter cloth covers the outer sides of the unit filter bags; each unit filter bag is formed by splicing at least two groups of filter screen discs, a central supporting pipe is arranged in the middle of each unit filter bag, the central supporting pipe is a water inlet and outlet flow channel, and the filter screen discs are communicated with the central supporting pipe; during filtering, water flow presses the filter screen disc to be closed, and filtrate flows out from the central supporting pipe; and during backwashing, water flows inwards from the central supporting pipe, and the filter screen disc is opened outwards. When filtering and backwashing are switched, the filter screen disc can swing back and forth, certain vibration is formed, filter residues accumulated on filter cloth are shaken off, and the filtering effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to filter machine technical field, concretely relates to a kind of liquid filter of free replacement consumable. BACKGROUND

[0002] Disc filter is indispensable on the medium pipeline, usually installed in the import end of pressure reducing valve, pressure relief valve, fixed water level valve or other equipment, to eliminate the impurities in medium, to protect the normal use of valve and equipment. Disc filter is composed of unit filter package, and the unit filter package is mainly composed of a set of annular reinforced plastic filter disc with groove or edge. When filtering, sewage enters from the outside, and the rim formed by the groove and edge on adjacent filter disc retains the solid in water. When backwashing, water flows from the inside of annular filter disc to the outside, and the dirt retained on the filter disc is washed down and discharged through the sewage outlet. When raw water passes through the unit filter package, it flows from outside to inside, and the impurities larger than the groove are intercepted outside.

[0003] However, during the filtering of the filter, small particles of the filtered material often accumulate on the surface of the filter cloth due to the influence of surface tension, and sometimes the filter holes are blocked, resulting in reduced efficiency and affecting the filtering effect. CONTENT OF THE UTILITY MODEL

[0004] To solve the above technical problems, one technical scheme of the utility model is as follows:

[0005] A liquid filter of free replacement consumable, comprising a blower and a driving element arranged in a machine body, the blower is used for blowing air inward during backwashing, and further comprising a total filter unit arranged in the machine body, the total filter unit is composed of a plurality of unit filter packages, the unit filter packages are arranged and combined regularly, and the outer side of the unit filter package is further covered with filter cloth.

[0006] The unit filter package is spliced by at least two groups of filter screen discs, a center support pipe is arranged in the unit filter package, the center support pipe is a water inlet and outlet passage, and the filter screen disc is communicated with the center support pipe.

[0007] When filtering, the water flow presses the filter screen disc to close, and the filtrate flows out from the center support pipe; when backwashing, the water flow flows into from the center support pipe, and the filter screen disc opens outward.

[0008] Further, the filter screen disc is provided with a plurality of circumferentially arranged first support pieces, and is further provided with a plurality of concentrically arranged second support pieces, the first support pieces and the second support pieces are fixedly connected, the filter cloth is covered on the first support pieces and the second support pieces, every two groups of the first support pieces form a first water guide slope, the filter screen disc is further provided with a cushion block, the cushion block is provided with a connecting hole in the middle, and two groups of the filter screen discs are fixedly connected through the connecting hole, and two groups of the cushion blocks form a second water guide slope, and the first water guide slope and the second water guide slope are communicated with each other.

[0009] Further, the air blower drives the unit filter package to rotate through a driving element, and the machine body is further provided with a water inlet, a liquid outlet and a backwashing water inlet; the backwashing water inlet is communicated with the central support pipe.

[0010] Further, a brushing assembly is arranged between every two groups of the unit filter packages, the brushing assembly is a brush, and the brushing assembly is fixed to the inner wall of the machine body; when the unit filter package rotates, the brushing assembly can continuously wash and brush the filter cloth covering the surface of the unit filter package.

[0011] Further, the filter cloth is a nano filter cloth.

[0012] Further, the first support piece is hinged to the pipe wall of the central support pipe at one end close to the central support pipe, and the first support piece can swing along the hinge point.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The unit filter package is spliced by two filter screen discs, and only one end is hinged; when filtering, the water pressure tightly clamps the filter screen disc, and the filter cloth covering the filter screen disc plays a filtering role; when backwashing, the water pressure is flushed out from the inside; since one end is hinged, the upper part of the filter screen disc is opened by the water pressure, so that the filter screen disc can swing back and forth when switching filtering and backwashing, at this time, a certain vibration can be formed, and the accumulated filter residues on the filter cloth can be shaken off.

[0015] 2. The unit filter package is provided with a brush, and the brush can continuously clean and brush the filter residues on the surface of the filter cloth when the unit filter package rotates, so that the filter residues are prevented from being accumulated and blocked.

[0016] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the utility model can be implemented according to the content of the specification, and the following preferred embodiments of the utility model are described in detail in combination with the drawings. DRAWINGS

[0017] Figure 1 It is a structure schematic view when the utility model filters;

[0018] Figure 2 is a structure schematic diagram of backwashing of the utility model;

[0019] Figure 3 is a filter principle schematic diagram of the single unit filter bag of the utility model;

[0020] Figure 4 is a principle schematic diagram of backwashing of the single unit filter bag of the utility model;

[0021] Figure 5 is a schematic diagram of the unit filter bag of the utility model;

[0022] Figure 6 is a schematic diagram of the single filter screen tray of the utility model;

[0023] Figure 7 is the utility model Figure 6 is an enlarged schematic diagram of the part A;

[0024] Explanation of reference signs:

[0025] 1, machine body; 11, air blower; 12, backwashing water inlet; 13, driving element; 14, water inlet; 15, liquid outlet; 2, unit filter bag; 21, filter screen tray; 211, first support sheet; 212, second support sheet; 213, first water guide slope; 214, cushion block; 215, second water guide slope; 22, center support pipe; 3, brushing assembly. Specific implementation

[0026] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and features of the utility model can be more easily understood by the person skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined. Specific embodiments:

[0028] As Figures 1 to 7 indicated in a kind of free to replace consumable liquid filter machine, including setting on machine body 1 air blower 11 and driving element 13, the air blower 11 is used to blow inwards when backwashing, still include being arranged in the machine body 1 total filter unit, the total filter unit is made of several unit filter bags 2, the unit filter bag 2 is combined by regular arrangement, the unit filter bag 2 outer side is also covered with filter cloth;Specific, the filter cloth is nano filter cloth.Specific, the unit filter bag 2 is rotated by driving element 13 and the unit filter bag 2, the machine body 1 is also equipped with water inlet 14, liquid outlet 15 and backwashing water inlet 12;The backwashing water inlet 12 is communicated with center support pipe 22.

[0029] The unit filter bag 2 is spliced by at least two groups of filter screen discs 21, a center support pipe 22 is arranged in the unit filter bag 2, the center support pipe 22 is a water inlet and outlet channel, the filter screen disc 21 is communicated with the center support pipe 22; specifically, a brushing assembly 3 is arranged between every two groups of the unit filter bag 2, the brushing assembly 3 is a brush, the brushing assembly 3 is fixed to the inner wall of the machine body 1, when the unit filter bag 2 rotates, the brushing assembly 3 can continuously wash the filter cloth covering the surface of the unit filter bag 2. Specifically, the filter screen disc 21 is provided with a plurality of first support pieces 211 arranged in a circle, the filter screen disc 21 is also provided with a plurality of second support pieces 212 arranged concentrically, the first support piece 211 and the second support piece 212 are fixedly connected, the filter cloth is covered on the first support piece 211 and the second support piece 212, every two groups of the first support piece 211 form a first water guide slope 213, the filter screen disc 21 is also provided with a pad 214, the pad 214 is provided with a connecting hole in the middle, two groups of the filter screen disc 21 are fixedly connected through the connecting hole, two groups of the pad 214 form a second water guide slope 215, the first water guide slope 213 and the second water guide slope 215 are communicated with each other. Specifically, the first support piece 211 is hinged to the pipe wall of the center support pipe 22 at one end close to the center support pipe 22, the first support piece 211 can swing along the hinge point.

[0030] When filtering, the water flow presses the filter screen disc 21 to close, and the filtrate flows out from the center support pipe 22; when backwashing, the water flow flows into from the center support pipe 22, and the filter screen disc 21 opens outwards.

[0031] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, any equivalent structural transformation or direct or indirect application in other related technical fields based on the content of the present application is also included in the patent protection range of the present application.

Claims

1. A consumable-free liquid filter, comprising a blower (11) and a drive element (13) disposed within a machine body (1), wherein the blower (11) is used to blow air inward during backwashing, characterized in that... It also includes a total filtration unit set in the machine body (1), the total filtration unit is composed of several unit filter packs (2), the unit filter packs (2) are arranged in a regular manner, and the outside of the unit filter packs (2) is covered with filter cloth. The unit filter pack (2) is composed of at least two sets of filter discs (21) spliced ​​together. The unit filter pack (2) has a central support pipe (22) in the middle. The central support pipe (22) is a water inlet and outlet channel. The filter discs (21) are connected to the central support pipe (22). During filtration, the water flow compresses the filter screen (21) to close, and the filtrate flows outward from the central support tube (22); during backwashing, the water flow inward from the central support tube (22), and the filter screen (21) opens outward.

2. The consumable-free liquid filter according to claim 1, characterized in that: The filter screen (21) is provided with a plurality of circumferentially arranged first support plates (211) and a plurality of concentrically arranged second support plates (212). The first support plates (211) and the second support plates (212) are fixedly connected. The filter cloth covers the first support plates (211) and the second support plates (212). Every two sets of the first support plates (211) form a first water guiding slope (213). The filter screen (21) is also provided with a pad (214). The pad (214) has a connecting hole in the middle. Two sets of the filter screen (21) are fixedly connected through the connecting hole. Two sets of the pad (214) form a second water guiding slope (215). The first water guiding slope (213) and the second water guiding slope (215) are interconnected.

3. The consumable-free liquid filter according to claim 1, characterized in that: The unit filter pack (2) is driven to rotate by the drive element (13). The machine body (1) is also provided with a water inlet (14), a drain outlet (15) and a backwash water inlet (12); the backwash water inlet (12) is connected to the central support pipe (22).

4. A consumable-free liquid filter according to claim 1, characterized in that: A brushing assembly (3) is provided between each pair of unit filter packs (2). The brushing assembly (3) is a brush and is fixed to the inner wall of the machine body (1). When the unit filter pack (2) rotates, the brushing assembly (3) can continuously wash the filter cloth covering the surface of the unit filter pack (2).

5. A consumable-free liquid filter according to claim 1, characterized in that: The filter cloth is a nanofiber filter cloth.

6. A consumable-free liquid filter according to claim 2, characterized in that: The first support piece (211) is hinged to the wall of the central support tube (22) at one end near the central support tube (22), and the first support piece (211) can swing along the hinge point.

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