CN2427266Y - Filter apparatus - Google Patents

Abstract

The utility model relates to a filter for filtering impurities in liquid, comprising a housing, a filter screen, a water inlet pipe, and a water outlet pipe, wherein, a cylinder-shaped inner housing without bottom and provided with through holes on the top part is arranged on the bottom plate of the inner part of the housing, a filter chamber formed between the inner housing and the housing is provided with the filter screen, the water inlet pipe is communicated with the inner housing in tangent direction, the water outlet pipe is arranged on the top cover of the housing, the bottom plate of the housing in the filter chamber is provided with a blow-off valve, the lower part of the inner housing is connected with a separatory cone, the lower part of the separatory cone is provided with a settling chamber, and the lower part of the settling chamber is provided with a blow-off pipe. The utility model has the advantages of small waterhead loss, large throughput, convenient cleaning, etc.

Description

Filter

The utility model relates to the filter of impurity in a kind of filtering fluid.

At present, in the process of agricultural water conservation sprinkling irrigation or drip irrigation irrigation operation, mostly be river, ditch water in a canal or well water owing to irrigate used water source, impurity wherein is more, before it being squeezed into sprinkling irrigation or drip irrigation pipeline, need to remove earlier impurity wherein, existing filter is of a great variety, its principle is for passing through the strainer filtering removal of impurities, its shortcoming is because the filter screen work area is little, cause the loss of flood peak big, it is limited to handle the water yield, and for the bigger impurity of volume, be easy to cause obstruction, and the cleaning difficulty.

The filter that the purpose of this utility model provides that a kind of filter area is big, the loss of flood peak is little, can the impurity that volume is bigger give first separation, be easy to clear up.

The purpose of this utility model is achieved in that a kind of filter, comprise shell, filter screen, water inlet pipe and outlet pipe, wherein on the base plate of the inside of shell, be provided with the inner casing that a top center has the cylindrical no end of through hole, be provided with one in the filter chamber that between the inwall of the outer wall of inner casing and shell, forms this filter chamber is separated into inside and outside two-part filter screen; Water inlet pipe tangentially is connected with the external peripheral surface of inner casing after passing shell and filter screen; Outlet pipe is arranged on the top cover of shell; The base plate of the shell between the inside of filter screen, the outside of inner casing is provided with a blowoff valve; The bottom of inner casing and a conical separation cone are connected, and are provided with a mud chamber in the bottom of separation cone, are provided with blow-off pipe in the bottom of mud chamber.

When using the utility model, water inlet at first enters in the inner casing along columniform inner casing tangential direction by water inlet pipe, and rotation therein, heavier impurity moves down along conical separation cone under the effect of gravity and falls into the mud chamber in the water, water and the lighter through hole of impurity along the inner casing top enter the filter chamber, discharge by outlet pipe behind the filter screen of water in passing the filter chamber; Because filter screen can be as required, that does under the situation of inner space, filter chamber permission is big as much as possible, therefore has bigger filter area, less to the resistance that head produces, the water yield of handling is bigger, and heavier impurity fell into the mud chamber of separation cone bottom by the separation cone separation before entering the filter chamber, reduced so enter the quantity of the impurity in the filter chamber, had prolonged the working time of the present utility model; The impurity of the accumulation in the utility model more only need be opened blowoff valve and blow-off pipe can be clean with the contaminant removal that accumulates in filter chamber and the mud chamber.

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further described:

Fig. 1 is an internal structure schematic diagram of the present utility model

Fig. 2 is that the A-A of Fig. 1 is to cutaway view

A kind of filter, comprise shell 8, filter screen 5, water inlet pipe 10 and outlet pipe 7, wherein on the base plate 4 of the inside of shell 8, be provided with the inner casing 11 that a top center has the cylindrical no end of through hole 6, be provided with one in the filter chamber 9 that between the inwall of the outer wall of inner casing 11 and shell 8, forms this filter chamber 9 is separated into inside and outside two-part filter screen 5, it is big as much as possible that filter screen 5 can be done under the situation of 9 inner spaces, filter chamber permission, thereby form bigger filter area, improve water treatment amount and the loss that reduces head; Water inlet pipe 10 passes shell 8 and filter screen 5 backs tangentially are connected with the external peripheral surface of inner casing 11; Outlet pipe 7 is arranged on the top cover of shell 8; The base plate 4 of the shell 8 between the outside of the inside of filter screen 5, inner casing 11 is provided with a blowoff valve 3, when the impurity of accumulation increases the influence filtration, opens blowoff valve 3 and the impurity in the filter chamber 9 can be discharged like this; The bottom of inner casing 11 and a conical separation cone 2 are connected, be provided with a mud chamber 1 in the bottom of separation cone 2,1 bottom is provided with blow-off pipe 12 in the mud chamber, when the utility model operate as normal, blow-off pipe 12 must clog, when the long-pending impurity of having expired is need clear up the time in the mud chamber 1, conducting blow-off pipe 12 can be discharged the impurity in the mud chamber 1.

Claims (1)

1. filter, comprise shell (8), filter screen (5), water inlet pipe (10) and outlet pipe (7), it is characterized in that on the base plate (4) of the inside of shell (8), being provided with the inner casing (11) that a top center has the cylindrical no end of through hole (6), be provided with one in the filter chamber (9) that between the inwall of the outer wall of inner casing (11) and shell (8), forms this filter chamber (9) be separated into inside and outside two-part filter screen (5); Water inlet pipe (10) passes shell (8) and filter screen (5) back tangentially is connected with the external peripheral surface of inner casing (11); Outlet pipe (7) is arranged on the top cover of shell (8); The base plate (4) of the shell (8) between the outside of the inside of filter screen (5), inner casing (11) is provided with a blowoff valve (3); The bottom of inner casing (11) and a conical separation cone (2) are connected, and are provided with a mud chamber (1) in the bottom of separation cone (2), and the bottom of (1) is provided with blow-off pipe (12) in the mud chamber.