CN215693230U - Keel structure - Google Patents

Abstract

The utility model relates to a keel structure, which comprises a keel body, wherein the keel body is oval and is provided with a plurality of diversion trenches, a first through hole is longitudinally formed in the keel body and communicated with the diversion trenches, a first cylindrical connector is arranged at one end of the keel body, a second cylindrical connector is arranged at the other end of the keel body, a second through hole is longitudinally formed in the first connector, the second through hole is connected with the first through hole, and a cylindrical weight reduction groove is formed in the second connector; the problem of prior art solved that only the filter membrane is moving in the filter of backwashing surface filter and recoil row sediment cleaning process, fossil fragments are immovable, cause the easy scale deposit of filter membrane surface in prior art.

Description

Keel structure

Technical Field

The utility model relates to the technical field of backwashing, in particular to a keel structure.

Background

At present, the keel applied to the market is made of a rigid material, the filter membrane is sleeved on the keel, only the filter membrane moves in the processes of filtering and backflushing, deslagging and cleaning of the filter with the backflushing surface, and the keel is fixed, so that the surface of the filter membrane is easy to scale.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a keel structure aiming at the defects of the prior art, and solves the problem that the surface of a filter membrane is easy to scale because only the filter membrane moves and the keel is fixed in the processes of filtering and back-flushing deslagging and cleaning of a filter with a back-cleaning surface in the prior art.

The utility model is realized by adopting the following technical scheme:

the keel structure comprises a keel body, wherein the keel body is oval and is provided with a plurality of diversion trenches, a first through hole is longitudinally formed in the keel body, the first through hole is communicated with the diversion trenches, a first cylindrical connector is arranged at one end of the keel body, a second cylindrical connector is arranged at the other end of the keel body, a second through hole is longitudinally formed in the first connector, the second through hole is connected with the first through hole, and a cylindrical weight reduction groove is formed in the second connector.

Preferably, a thread is arranged inside the through hole, and a thread is arranged outside the connector.

Preferably, the keel body, the first connector and the second connector are made of polypropylene materials.

Preferably, the keel body, the first connecting head and the second connecting head are integrally formed by injection molding.

Compared with the prior art, the utility model has the following beneficial technical effects:

the keel body is oval, the filter membrane is wrapped outside the keel, liquid flows in from outside to inside in the filtering process, and solid particles and suspended matters in the solution are intercepted on the surface of the filter membrane to form a filter cake; during backflushing, clear liquid filtered by the self is backflushed downwards, negative pressure is formed instantly in the lower barrel after the backflushing valve is opened and is drained quickly, liquid level difference exists between the clear liquid of the upper barrel and a backflushing valve port, liquid backflushs outwards from the keel body, the oval keel is propped into a circle and deforms, and the effect that a filter cake is separated from the surface of the filter membrane more easily is achieved; the keel body is provided with a flow guide groove, so that the liquid flow resistance is small, the flow area is utilized to the maximum extent in a filtering state, and the maximum filtering capacity is ensured; under the condition of back flushing, the back flushing hydraulic power is ensured to be uniformly distributed to the maximum extent, and mud cakes fall off quickly without damaging the filter membrane.

Drawings

The utility model is further described with the following figures:

figure 1 is a view of the keel structure of the present invention.

Description of the reference numerals

1. A keel body; 2. a diversion trench; 3. a first through hole; 4. a first connecting head; 5. a second joint; 6. a second through hole; 7. and a weight reduction groove.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a detailed description of the present invention will be given below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

as shown in fig. 1: a keel structure comprises a keel body, wherein the keel body is oval and provided with a plurality of diversion trenches, a first through hole is longitudinally formed in the keel body and communicated with the diversion trenches, a first cylindrical connector is arranged at one end of the keel body, a second cylindrical connector is arranged at the other end of the keel body, a second through hole is longitudinally formed in the first connector, the second through hole is connected with the first through hole, a cylindrical lightening trench is formed in the second connector, threads are formed in the first through hole, and threads are formed outside the second connector; the keel body, the first connecting head and the second connecting head are made of polypropylene materials; the keel body, the first connector and the second connector are integrally formed by injection molding.

When the filtering device is used, the filter membrane is wrapped outside the keel, liquid flows in from outside to inside in the filtering process, and solid particles and suspended matters in the solution are intercepted on the surface of the filter membrane to form a filter cake; during backflushing, clear liquid filtered by the self is backflushed downwards, negative pressure is formed instantly in the lower barrel after the backflushing valve is opened and is drained quickly, liquid level difference exists between the clear liquid of the upper barrel and a backflushing valve port, liquid backflushs outwards from the keel body, the oval keel is propped into a circle and deforms, and the effect that a filter cake is separated from the surface of the filter membrane more easily is achieved; the keel body is provided with a flow guide groove, so that the liquid flow resistance is small, the flow area is utilized to the maximum extent in a filtering state, and the maximum filtering capacity is ensured; under the condition of back flushing, the back flushing hydraulic power is ensured to be uniformly distributed to the maximum extent, and mud cakes fall off quickly without damaging the filter membrane.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (4)

1. A keel structure, which is characterized in that: the keel is oval and provided with a plurality of guide grooves, a first through hole is longitudinally formed in the keel, the first through hole is communicated with the guide grooves, a first cylindrical connector is arranged at one end of the keel, a second cylindrical connector is arranged at the other end of the keel, a second through hole is longitudinally formed in the first connector, the second through hole is connected with the first through hole, and a cylindrical weight reduction groove is formed in the second connector.

2. The keel structure of claim 1, wherein said through hole is internally threaded and said connector is externally threaded.

3. The keel structure of claim 1, wherein said keel body, said first connector and said second connector are polypropylene.

4. The keel structure of claim 1, wherein said keel body, said first connector and said second connector are integrally injection molded.

Images