CN203634917U

CN203634917U - Metal film differential pressure filter

Info

Publication number: CN203634917U
Application number: CN201320867119.XU
Authority: CN
Inventors: 赵永宾
Original assignee: Yunnan Chenyi Hongyu Environmental Protection Science & Technology Co Ltd
Current assignee: Yunnan Chenyi Hongyu Environmental Protection Science & Technology Co Ltd
Priority date: 2013-12-26
Filing date: 2013-12-26
Publication date: 2014-06-11
Anticipated expiration: 2023-12-26

Abstract

The utility model discloses a metal film differential pressure filter which comprises a machine body, a filtering mechanism positioned in the machine body, a backwashing mechanism positioned in the filtering mechanism, a transmission mechanism connected with the backwashing mechanism and a sewage discharging mechanism positioned in the filtering mechanism. The metal film differential pressure filter has the beneficial effects of high filtering precision, stable discharged water quality, high efficiency and thoroughness in cleaning and high system recovery property, and a filtering net can be used permanently and does not need to be replaced; furthermore, due to the own search and strain functions, the automatic backwashing is realized; the phenomenon of unstable water quality fluctuation can be avoided, and the manual intervention is avoided; the metal film differential pressure filter is compact and reasonable in structure, occupies a small area and is flexible and convenient to mount and move; meanwhile, the metal film differential pressure filter has the energy-saving and environment-friendly effects, and is easy to operate and low in maintenance cost.

Description

Metal film differential pressure filtering machine

Technical field

Metal film differential pressure filtering machine is mainly used in living water, production technology to the purposes of purifying waste water, particularly the micro-filtration field higher to water quality requirement such as water filtration, middle water reuse, waste water advanced processing filtrations.

Background technology

Metal film differential pressure filtering machine major function can be removed the impurity such as silt in water, clay, iron rust, suspension, algae, biological clay, corrosion product, large molecule bacterium, organic matter and other molecule, reaches the object of purification of water quality.

The differential filter of tradition (self-cleaning filter) can only be used for coarse filtration industry, main cause ascribes in the time adopting high-precision filtration net because filter body does not possess reliable high pressure backwashing function, so the dirty stifled rear cleaning of screen pack is not thorough, screen pack flux cannot be recovered, therefore cause filter normally to move.

Utility model content

The purpose of this utility model provides a kind of cleaning function combining with inner self-priming blowdown that filter screen external high pressure can be recoiled in order to overcome the defect of above-mentioned prior art existence just, clean efficient, thoroughly, without dead angle, the metal film differential pressure filtering machine that can greatly extend filter screen service life.

The purpose of this utility model is achieved by the following technical solution.

Metal film differential pressure filtering machine, the utility model is characterised in that, include body, be positioned at body filter mechanism, be positioned at the backwashing mechanism of filter mechanism, the transmission mechanism being connected with backwashing mechanism, the pollution discharge mechanism that is positioned at filter mechanism; Wherein:

Body is a circular cylinder body structure by frame support, and at cylindrical shell two ends, cap seal has intake end cover, draining end cap respectively, is provided with raw water inlet in the cylindrical shell bottom that is positioned at intake end cover end, is provided with produces water delivery port in the cylindrical shell bottom that is positioned at discharge ends lid end; On raw water inlet, be provided with into water pressure difference transmitter interface, on product water delivery port, be provided with and produce differential water pressures transmitter interface;

Filter mechanism is the tube structure with mesh, is divided into two sections of the coarse filtration network segment and the fine filtering network segments, is connected with a dividing plate to body cylinder inboard wall between two sections; The coarse filtration network segment is communicated with raw water inlet, and the fine filtering network segment is communicated with product water delivery port;

Backwashing mechanism comprises the hollow shaft with body cylindrical shell concentric, is arranged on the pollution-absorbing nozzle that is positioned at the fine filtering network segment in hollow shaft; Hollow shaft front end is stretched out with transmission device and is connected by intake end cover; The front end of hollow shaft is high-pressure water inlet chamber, and high pressure backwashing pump water inlet pipe is communicated with high-pressure water inlet chamber; High pressure backwashing pump water inlet pipe is communicated with product water delivery port; Backwash high-pressure pump is set to supply water in body by high pressure backwashing pump water inlet pipe; On the fine filtering network segment of body, be provided with pressure difference transmitter, on high pressure backwashing pump water inlet pipe, be provided with high pressure backwash pressure table;

Transmission mechanism comprises driving motor, electric cabinet, travel switch A, driving block, the cover that is in transmission connection, travel switch B;

Pollution discharge mechanism comprises with hollow shaft and being communicated with, and is positioned at the blowdown chamber outside draining end cap, the concentrated water discharge pipe being communicated with blowdown chamber.

The beneficial effects of the utility model are to provide filtering accuracy high, stable effluent quality, clean efficiently, thoroughly, system restorability is strong, and filter screen can use all the life, without replacing, by self retrieval and strain function, realize automatic backwash, can tackle unsettled variation water quality, without manual intervention, structural design compact and reasonable, floor space is little, install mobile flexible, a kind of simple to operate, metal film differential pressure filtering machine that maintenance cost is low of energy-conserving and environment-protective.

Further set forth content of the present utility model below in conjunction with Figure of description.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the schematic diagram of the utility model body in the time of normal filtration state;

Fig. 4 is the schematic diagram of the utility model body in the time cleaning state;

Fig. 5 is the utility model and the structural representation that enters draining and be connected; Wherein, A, inlet valve; B, water inlet ball-and-seat; C, inlet gage; D, discharge pressure table; E, flowing water Valve; F, water outlet ball-and-seat; G, bypath valve.

The specific embodiment

See Fig. 1, Fig. 2, metal film differential pressure filtering machine, the utility model is characterised in that, include body, be positioned at body filter mechanism, be positioned at the backwashing mechanism of filter mechanism, the transmission mechanism being connected with backwashing mechanism, the pollution discharge mechanism that is positioned at filter mechanism; Wherein:

Body 13 is a circular cylinder body structure being supported by frame 10, at cylindrical shell two ends, cap seal has intake end cover 8, draining end cap 17 respectively, be provided with raw water inlet 11 in the cylindrical shell bottom that is positioned at intake end cover 8 ends, be provided with in the cylindrical shell bottom that is positioned at discharge ends lid 17 ends and produce water delivery port 16; On raw water inlet 11, be provided with into water pressure difference transmitter interface 12, on product water delivery port 16, be provided with and produce differential water pressures transmitter interface 14;

Filter mechanism is the tube structure with mesh, is divided into 22 sections two sections of 21 sections of coarse strainers and fie screens, is connected with a dividing plate to body cylinder inboard wall between two sections; 21 sections of coarse strainers are communicated with raw water inlet 11,22 sections of fie screens with produce water delivery port 16 and be communicated with;

Backwashing mechanism comprises the hollow shaft 25 with body cylindrical shell concentric, is arranged on the pollution-absorbing nozzle that is positioned at the fine filtering network segment 26 in hollow shaft; Hollow shaft 25 front ends are stretched out with transmission device and are connected by intake end cover 8; The front end of hollow shaft is high-pressure water inlet chamber 7, and high pressure backwashing pump water inlet pipe 9 is communicated with high-pressure water inlet chamber 7; High pressure backwashing pump water inlet pipe 15 is communicated with product water delivery port 16; Backwash high-pressure pump 22 is set to supply water in body by high pressure backwashing pump water inlet pipe 9; On 22 sections of the fie screens of body 13, be provided with pressure difference transmitter 23, on high pressure backwashing pump water inlet pipe 9, be provided with high pressure backwash pressure table 24;

Transmission mechanism comprises driving motor 1, electric cabinet 2, travel switch A3, driving block 4, cover 5, travel switch B6 are in transmission connection;

Pollution discharge mechanism comprises with hollow shaft 25 and being communicated with, and is positioned at the blowdown chamber 18 outside draining end cap 17, the concentrated water discharge pipe 19 being communicated with blowdown chamber 18.

The utility model working method is:

The former water of pressure is by 11 raw water inlets, with external pressure mode 20 coarse strainers of flowing through, filtering larger particles impurity, and 20 coarse strainer water outlets enter fie screen with inner pressed, and further the fine impurities in trap water, is finally sent to and is used water spot by delivery port.

Along with various pollutants in filter medium are in the accumulation of 21 fie screen inner sides, filtration channel is blocked, intake-outlet pressure reduction increases gradually, in the time that pressure reduction reaches default definite value, 12 pressure difference transmitters that are connected in intake-outlet just convert the pressure difference signal detecting to the current signal of 4-20mA, pass to 2 control systems, backwash frequency also can preset 24 high pressure backwash pressure tables by the time simultaneously, in the time that reach default definite value running time, system starts driving

motor

1 and 22 backwash high pressure pumps automatically, now transmission device drives the contaminants collector that suction nozzle is housed to do rotation and horizontal back and forth movement in filter screen inner side, filter screen is carried out to high pressure backwash, backwash water sees through filter screen, sucked rapidly contaminants collector together with the impurity of peeling off from filter screen by suction nozzle, deliver to 18 blowdown chambers, finally discharged by sewage draining exit.

After a backwash stroke, pressure reduction reduces, and each parts reset, and system reenters normal operating condition.

Claims

1. metal film differential pressure filtering machine, is characterized in that, include body, be positioned at body filter mechanism, be positioned at the backwashing mechanism of filter mechanism, the transmission mechanism being connected with backwashing mechanism, the pollution discharge mechanism that is positioned at filter mechanism; Wherein:

Body (13) is a circular cylinder body structure being supported by frame (10), at cylindrical shell two ends, cap seal has intake end cover (8), draining end cap (17) respectively, be provided with raw water inlet (11) in the cylindrical shell bottom that is positioned at intake end cover (8) end, be provided with and produce water delivery port (16) in the cylindrical shell bottom that is positioned at discharge ends lid (17) end; On raw water inlet (11), be provided with into water pressure difference transmitter interface (12), on product water delivery port (16), be provided with and produce differential water pressures transmitter interface (14);

Filter mechanism is the tube structure with mesh, is divided into two sections of coarse strainer (21) section and fie screen (22) sections, is connected with a dividing plate to body cylinder inboard wall between two sections; Coarse strainer (21) section is communicated with raw water inlet (11), and fie screen (22) section is communicated with product water delivery port (16);

Backwashing mechanism comprises the hollow shaft (25) with body cylindrical shell concentric, is arranged on the pollution-absorbing nozzle that is positioned at the fine filtering network segment (26) in hollow shaft; Hollow shaft (25) front end is stretched out with transmission device and is connected by intake end cover (8); The front end of hollow shaft is high-pressure water inlet chamber (7), and high pressure backwashing pump water inlet pipe (9) is communicated with high-pressure water inlet chamber (7); High pressure backwashing pump water inlet pipe (15) is communicated with product water delivery port (16); Backwash high-pressure pump (22) is set to supply water in body by high pressure backwashing pump water inlet pipe (9); In fie screen (22) section of body (13), be provided with pressure difference transmitter (23), on high pressure backwashing pump water inlet pipe (9), be provided with high pressure backwash pressure table (24);

Transmission mechanism comprises driving motor (1), electric cabinet (2), travel switch A(3), driving block (4), cover (5), travel switch B(6 are in transmission connection);

Pollution discharge mechanism comprises with hollow shaft (25) and being communicated with, and is positioned at the outer blowdown chamber (18) of draining end cap (17), the concentrated water discharge pipe (19) being communicated with blowdown chamber (18).