Clear liquid pipe network type filter capable of smoothly discharging slag

Abstract

The utility model discloses a clear liquid pipe network type filter capable of smoothly discharging slag, which comprises a filter shell (1), and is characterized in that the filter shell (1) consists of an upper sealing head (2), a middle barrel (3) and a lower sealing head (4) which are connected with one another, and a clear liquid pipe network (5) is arranged at the lower part of an inner cavity of the filter shell (1); the clear liquid pipe network (5) is composed of a plurality of pipes which are communicated with one another, the whole clear liquid pipe network (5) is of a net-shaped structure, a plurality of filter elements (6) are connected to the top end face of the clear liquid pipe network (5) and are distributed in an array mode, outlets in the bottom ends of the filter elements (6) are communicated with an inner cavity of the clear liquid pipe network (5), one side of the filter shell (1) is connected with a turbid liquid inlet pipeline (7), and the other side of the filter shell (1) is connected with a clear liquid outlet pipeline (8). One side of the clear liquid pipe network (5) is connected with a clear liquid outlet pipeline (8), and a port of the clear liquid outlet pipeline (8) is positioned outside the filter shell (1).

Description

Technical Field

[0001] The utility model relates to a filtering device, in particular to a clear liquid pipe network type filter capable of smoothly discharging slag. Background Technique

[0002] For the traditional baffle type filter, a baffle is arranged at the upper part of the filter. The baffle divides the inner cavity of the filter into two parts, namely a clear liquid cavity above and a turbid liquid cavity below. A plurality of filter elements are arranged below the baffle, and an inner conduit is arranged inside the filter element and directly leads to the clear liquid cavity above; for the filter with such a structure, due to the need to leave an operation space for backwashing, there is a section of smooth tube structure without filter material at the top of the filter element, which will lead to a relatively long overall length of the filter element, and further lead to a relatively high overall height of the filter, occupying a large space; at the same time, in the traditional filter, the filtered clear liquid flows from bottom to top. Once the overall height of the filter is relatively high, a water pump with a large lift needs to be configured to support it, which will bring a certain cost pressure to users.

[0003] Therefore, there is a need for a method or device that can solve the above problems now. Summary of the Invention

[0004] The utility model is proposed to solve the above-mentioned deficiencies existing in the prior art, and provides a filter with a simple structure, ingenious design, reasonable layout, which can save costs and has a small overall occupied space, and can smoothly discharge slag.

[0005] The technical solution of the utility model is: a clear liquid pipe network type filter capable of smoothly discharging slag, including a filter housing 1, characterized in that: the filter housing 1 is composed of three parts, namely an upper head 2, an intermediate cylinder 3 and a lower head 4 which are connected to each other. A clear liquid pipe network 5 is arranged at the lower part of the inner cavity of the filter housing 1. The clear liquid pipe network 5 is composed of a plurality of interconnected pipes and is in an overall net structure. A plurality of filter elements 6 are connected to the top end surface of the clear liquid pipe network 5, and the plurality of filter elements 6 are distributed in an array. The bottom end outlet of the filter element 6 is communicated with the inner cavity of the clear liquid pipe network 5. One side of the filter housing 1 is connected with a turbid liquid inlet pipe 7, one side of the clear liquid pipe network 5 is connected with a clear liquid outlet pipe 8, and the port of the clear liquid outlet pipe 8 is located outside the filter housing 1. At the same time, a backwashing pipe 9 is also connected to the clear liquid outlet pipe 8.

[0006] A vent pipe 10 and a cleaning liquid pipe 11 are arranged at the top of the upper head 2.

[0007] A drain pipe 12 is arranged on the intermediate cylinder 3, and the height of the inlet end of the drain pipe 12 is higher than the top end surface of the filter element 5.

[0008] A drain pipe 13 is arranged at the bottom end of the lower head 4.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] The clarified liquid pipe network filter with this structural form can achieve smooth slag discharge. It has a simple structure, ingenious design and reasonable layout. Aiming at the problems existing in the traditional filter during the working process, it designs a special structure. It creatively sets a partition at the lower part of the filter and changes the partition into a clarified liquid pipe network structure with an inner cavity. The filter element is inserted on the top surface of the clarified liquid pipe network. In this structure, the filter element does not need to be provided with a smooth tube structure, so the length of the filter element can be effectively shortened (under the premise of ensuring the same filtering effect), and thus the overall occupied space of the filter can be reduced; also, a water pump with a large lift does not need to be selected, which can effectively reduce its operating cost. Moreover, the clarified liquid pipe network belongs to a mesh structure, which provides the greatest convenience for the falling of impurities above, and can effectively prevent the accumulation of impurities on the cleaning pipe network. And the manufacturing process of this filter is simple and the manufacturing cost is low. Therefore, it can be said that it has multiple advantages and is especially suitable for popularization and application in this field, and its market prospect is very broad. Brief Description of the Drawings

[0011] Figure 1 is a schematic structural view of an embodiment of the utility model.

[0012] Figure 2 is Figure 1 the sectional view taken along the line A-A of Detailed Embodiment

[0013] The following will describe the detailed embodiment of the utility model in conjunction with the drawings. As Figure 1 , Figure 2 shown: A clarified liquid pipe network filter that can smoothly discharge slag includes a filter housing 1, which is composed of three parts: an upper head 2, an intermediate cylinder 3 and a lower head 4 that are connected to each other. A clarified liquid pipe network 5 is arranged at the lower part of the inner cavity of the filter housing 1. The clarified liquid pipe network 5 is composed of a plurality of interconnected pipes and is in a mesh structure as a whole. A plurality of filter elements 6 are connected to the top surface of the clarified liquid pipe network 5, and the plurality of filter elements 6 are distributed in an array. The bottom outlet of the filter element 6 is communicated with the inner cavity of the clarified liquid pipe network 5. One side of the filter housing 1 is connected with a turbid liquid inlet pipeline 7. One side of the clarified liquid pipe network 5 is connected with a clarified liquid outlet pipeline 8, and the port of the clarified liquid outlet pipeline 8 is located outside the filter housing 1. At the same time, a backwashing pipeline 9 is also connected to the clarified liquid outlet pipeline 8.

[0014] A vent pipeline 10 and a cleaning liquid pipeline 11 are arranged at the top of the upper head 2.

[0015] A drain pipe 12 is provided on the middle cylinder body 3, and the height of the inlet end of the drain pipe 12 is higher than the top surface of the filter element 5.

[0016] A drain pipe 13 is provided at the bottom end of the lower head 4.

[0017] Electromagnetic valves are provided on all the above pipelines (turbid liquid inlet pipeline 7, clear liquid outlet pipeline 8, backwashing pipeline 9, vent pipeline 10, cleaning liquid pipeline 11, drain pipeline 12 and drain pipe 13).

[0018] The working process of the clear liquid network type filter capable of smoothly discharging slag in the embodiment of the present utility model is as follows: The turbid liquid to be filtered is pumped into the inner cavity of the filter housing 1 through the turbid liquid inlet pipeline 7. After the turbid liquid enters the inner cavity, it will flow upward through the gaps between the clear liquid network 5 and the inner wall of the filter housing 1 and the gaps between the pipelines forming the clear liquid network 5 to the upper part (i.e., the space where the filter element 6 is located). After the inner cavity of the filter housing 1 is filled with the turbid liquid, under the action of pressure, the turbid liquid will enter into a plurality of filter elements 6. During the process that the turbid liquid passes through the filter element 6, the impurities therein will be intercepted by the filter element 6 and adhere to the outer surface of the filter element 6, while the clear liquid with the removed impurities will flow into the inner cavity of the clear liquid network 5 and finally be discharged through the clear liquid outlet pipeline 8, realizing the filtration of the turbid liquid.

[0019] After working for a period of time, the impurities adhering to the filter element 6 will form a filter cake, and the filter cake will affect the liquid flow effect, so it needs to be cleaned. During cleaning, first stop injecting turbid liquid into the filter housing 1, then open the drain pipeline 12 and the vent pipeline 10. The water above the inlet of the drain pipeline 12 will be discharged through the drain pipeline 12. Then close the clear liquid outlet pipeline 8 and open the backwashing pipeline 9. Air is injected into the inner cavity of the clear liquid network 5 through the backwashing pipeline. The air will be blown out from the inside of the filter element 6 in the reverse direction and will wash down the filter cake adhering to the outer surface of the filter element 6 during the blowing process. At the same time, this backwashing gas will also disturb the water body in the filter housing 1, and the disturbed water body will also continuously wash the filter cake and wash it down from the outer surface of the filter element 6. During the above process, the gas entering the filter housing 1 will be discharged through the vent pipeline 10.

[0020] After backwashing for a period of time, stop injecting air into the backwashing pipeline 9 and let the inside of the filter housing 1 stand for a certain period of time. During the standing process, the solid impurities will naturally settle and accumulate at the bottom of the lower head 4. The impurities will fall to the bottom of the lower head 4 through the gaps between the pipelines forming the clear liquid network 5. Finally, open the drain pipe 13 to discharge all the impurities and backwashing liquid, that is, the backwashing and cleaning operation of the filter element 6 is completed.

[0021] When it is necessary to clean the inner cavity of the filter housing 1, the cleaning liquid pipeline 11 can be opened and cleaning liquid can be injected into it.

Claims

1. A clear liquid pipe network filter capable of smoothly discharging slag, comprising a filter housing (1), characterized in that: The filter housing (1) is composed of three parts: an upper head (2), an intermediate cylinder (3), and a lower head (4) that are connected to each other. A clear liquid pipe network (5) is provided at the lower part of the inner cavity of the filter housing (1). The clear liquid pipe network (5) is composed of multiple interconnected pipes and has an overall mesh structure. A plurality of filter elements (6) are connected to the top surface of the clear liquid pipe network (5), and the plurality of filter elements (6) are arranged in an array. The bottom outlet of the filter element (6) is communicated with the inner cavity of the clear liquid pipe network (5). One side of the filter housing (1) is connected to a turbid liquid inlet pipe (7), and one side of the clear liquid pipe network (5) is connected to a clear liquid outlet pipe (8), and the port of the clear liquid outlet pipe (8) is located outside the filter housing (1). At the same time, a backflush pipe (9) is also connected to the clear liquid outlet pipe (8). A vent pipe (10) and a cleaning liquid pipe (11) are provided at the top of the upper head (2). A drain pipe (12) is provided on the intermediate cylinder (3), and the height of the inlet end of the drain pipe (12) is higher than the top surface of the filter element (6). A drain pipe (13) is provided at the bottom of the lower head (4).

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