CN201752600U - Element structure of an internal pressure filter using an element - Google Patents

Abstract

The utility model relates to a filter core of filter especially relates to a use filter core structure of interior pressure formula filter of filter core. The technical scheme is as follows: the filter element structure of the internal pressure type filter using the filter element is a circular ring formed by folding and enclosing filter paper, and a plurality of parallel creases are arranged on the filter paper; the interval between the crease on the filter paper is wide, narrow interval arrangement, forms the arch of height, short, height interval arrangement after folding, bellied difference in height etc.. The utility model has the advantages that: the height difference of the bulges formed by the creases is reduced, and the hardness of the bulges is increased, so that the aims of high filtering precision, long service life of the filter element and remarkable increase of the filtering area of the object to be filtered are fulfilled.

Description

Element structure of an internal pressure filter using an element

technical field

The utility model relates to a filter element of a filter, in particular to a filter element structure of an internal pressure filter using the filter element.

Background technique

In the Chinese Utility Model Patent No. 200720170781.4, a filter is disclosed, which includes a filter core, which is a circular ring surrounded by folded filter paper. There are multiple parallel creases on the filter paper, and the distance between the creases is arranged in wide, narrow, wide, and narrow intervals. After folding, protrusions arranged in high, short, high, and short intervals are formed; that is, it is M-shaped. Shape, in the ring filter core formed by folding the filter paper, one side of the short protrusion is located outside the filter core. The structure of the filter element can increase the filter area through which the fluid to be filtered passes, thereby better filtering out impurities and prolonging the service life.

The height difference of the protrusions is large, and the hardness of the filter element is not ideal; in addition, it is also hoped that the filtration efficiency can be improved even more.

The above-mentioned utility model is an existing invention created by the inventor. After long-term experimental exploration, the inventor has further improved it so that it can solve the following technical problems.

Utility model content

The technical problem to be solved by the utility model is to provide a filter core structure of an internal pressure filter using a filter core with larger filtering area and high hardness.

In order to solve the technical problems, the utility model adopts the following technical solutions:

The filter element structure of the internal pressure filter using the filter element, the filter element is a ring formed by folding the filter paper, and the filter paper is provided with a plurality of parallel creases; between the creases on the filter paper The pitches are arranged in wide, second wide, and narrow intervals, and after folding, protrusions arranged at intervals of high, second high, short, second high, and high are formed. The height difference ranges from 15mm to 30mm.

The height difference of the protrusions is equal, and the range of the height difference is between 15mm and 30mm.

The height difference of the protrusions is 25mm.

In the filter element of the existing background technology, the intervals between the creases are arranged in wide, narrow, wide, and narrow intervals, and after folding, protrusions arranged in high, short, high, and short intervals are formed, and the height difference of the protrusions is relatively large; In the utility model, the intervals between the creases on the filter paper are arranged at wide, second wide and narrow intervals, and after folding, protrusions arranged at intervals of height, second height, short, second height, and height are formed, which can make the same The filter area in the volume increases a lot, and the height difference of the protrusions formed by the creases decreases, which is conducive to the improvement of the overall hardness of the filter element after being rolled into the filter element.

In summary, the beneficial effects of the utility model are: the height difference of the protrusions formed by the creases is reduced, and its hardness is increased, thereby achieving high filtration precision, long service life of the filter element, and a significant increase in the filtration area of the filter to be filtered the goal of.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

Fig. 1 is a structural representation of the utility model.

Reference signs: high protrusion 1, second highest protrusion 2, short protrusion 3.

Detailed ways

In the internal pressure filter using a filter element, the filter element is a ring surrounded by folded filter paper.

As shown in Figure 1, the filter paper is provided with a plurality of parallel creases; the distance between the creases on the filter paper is arranged in wide, second wide and narrow intervals, forming high protrusions 1 after folding , Second-highest protrusion 2, Short protrusion 3, Second-highest protrusion 2, High protrusion 1 The protrusions arranged at intervals, High protrusion 1, Second-highest protrusion 2, Short protrusion 3, Second-highest protrusion 2, The heights of the high protrusions 1 are 95mm, 70mm, and 45mm in sequence.

When the inventor made structures with the heights of high protrusion 1, second highest protrusion 2, and short protrusion 3 at 150 mm, 100 mm, and 50 mm, there were no high protrusion 1, second highest protrusion 2, short protrusion 3, and second highest protrusion. The heights of the raised 2 and the high raised 1 are 95mm, 70mm, and 45mm in turn, which are excellent, the hardness can be increased by about 30%, and the filtration efficiency can also be increased by more than 20%.

Claims (3)

1. A filter core structure using an internal pressure filter of a filter core, the filter core is a ring formed by folding filter paper, and the filter paper is provided with multiple creases parallel to each other; it is characterized in that: the The intervals between the creases on the filter paper are arranged at wide, second wide and narrow intervals, and after folding, protrusions arranged at intervals of high, second high, short, second high and high are formed, and the heights of the protrusions are of equal difference. 2 . The filter element structure of the internal pressure filter using the filter element as described in claim 1 , wherein the heights of the protrusions are equal, and the height difference ranges from 15mm to 30mm. 3. The filter core structure of the internal pressure filter using the filter core as described in claim 2, wherein the height difference of the protrusions is 25 mm.