CN204522580U - Filter and blowback endless tube thereof - Google Patents

Abstract

The utility model discloses a filter capable of purging a filter assembly inside the filter by jet air and a reverse blowing ring pipe thereof. The filter in the present application includes a filter assembly, in which several filter elements are arranged, and also includes a backflush ring pipe arranged around the filter assembly, and the backflush ring pipe includes a ring pipe main body and a nozzle assembly arranged on the inner ring of the ring pipe main body , the nozzle assembly communicates with the inside of the annular pipe main body, the annular pipe main body is provided with an air inlet, and the air inlet is connected with the blowing gas supply device. The above-mentioned blowback ring pipe is arranged outside the filter assembly of the filter and is connected with the blowing gas supply device. The blowing gas coming out of the blowing gas supply device enters the nozzle assembly arranged on the inner ring of the ring pipe, and passes through the nozzle assembly to The filter element in the main body of the ring pipe blows off the dust accumulated outside the filter element, avoiding the dust bridging on the surface of the filter element, and continuously maintaining the normal working temperature of the surface of the filter element and the filtration efficiency of the filter.

Description

Filter and its blowback loop

technical field

The utility model relates to a filter and a reverse blowing ring pipe thereof.

Background technique

In current filters, especially membrane separation high-temperature dust filters, dust will gradually accumulate on the outside of the filter element during the working process of the filter, resulting in dust bridging between the filter elements. When the dust accumulation is serious, it will even block the membrane surface of the filter element, reducing the filtration efficiency of the filter. The dust deposits are thick, and the local temperature of the membrane surface of the filter element rises during high-temperature filtration. In this case, the operating temperature of the filter element is higher than the normal operating temperature, resulting in a shortened service life of the filter element. The filter element of the filter requires frequent maintenance and replacement, thereby increasing the cost of use.

Utility model content

The technical problem to be solved by the utility model is to provide a filter capable of purging the filter assembly inside the filter by jet air and its back-blowing ring pipe.

The filter in the present application includes a filter assembly, in which several filter elements are arranged, and a backflush ring pipe arranged around the filter assembly, and the backflush ring pipe includes a ring pipe main body and a nozzle assembly arranged on the inner ring of the ring pipe main body , the nozzle assembly communicates with the inside of the annular pipe main body, the annular pipe main body is provided with an air inlet, and the air inlet is connected with the blowing gas supply device.

As a specific improvement of the above filter, the nozzle assembly includes several nozzles arranged around the inner circle of the main body of the annular pipe, and there is a certain distance between adjacent nozzles.

As a further improvement of the filter, some nozzles in the nozzle assembly are arranged in inconsistent directions, and the inconsistent direction of the nozzles expands the range of action of the nozzles.

Specifically, the blowback loop pipe is formed by connecting at least two pipe bodies through joints.

Specifically, the ring pipe main body is connected to the filter assembly through a fixed structure.

As a further improvement of the above-mentioned filter, the fixing structure includes fixing pieces arranged at intervals in the circumferential direction on the main body of the ring pipe, and the fixing piece includes a fixing piece connected with the main body of the ring pipe and a fixing ring connected with the fixing piece, the fixing ring The top assembly is equipped with pull rods, one end of which is respectively connected with the corresponding fixing ring, and the other end is connected with the filter element mounting plate at the end of the filter element on the filter assembly.

The backflush ring pipe used for the above-mentioned filter includes a ring pipe main body and a nozzle assembly arranged on the inner ring of the ring pipe main body. The nozzle assembly communicates with the inside of the ring pipe main body. .

As an improvement of the above blowback ring pipe, the nozzle assembly includes several nozzles arranged around the inner circle of the main body of the ring pipe, and there is a certain distance between adjacent nozzles.

As a further improvement of the above blowback ring pipe, some nozzles in the nozzle assembly are arranged in different directions.

Further, the blowback loop pipe is formed by connecting at least two pipe bodies through joints.

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

The above-mentioned blowback ring pipe is arranged outside the filter assembly of the filter and is connected with the blowing gas supply device. The blowing gas coming out of the blowing gas supply device enters the nozzle assembly arranged on the inner ring of the ring pipe, and passes through the nozzle assembly to The filter element in the main body of the ring pipe blows off the dust accumulated outside the filter element, avoiding the dust bridging on the surface of the filter element, and continuously maintaining the normal working temperature of the filter element surface and the filtration efficiency of the filter.

Description of drawings

Fig. 1 is the internal schematic view of the filter in the utility model.

Fig. 2 is a top view of the blowback ring pipe in the utility model.

Fig. 3 is a schematic cross-sectional view of the backflushing loop pipe along line A-A in Fig. 1 .

1-Filter assembly, 2-Filter element, 3-Blowback ring, 4-Ring body, 5-Inlet, 6-Nozzle, 7-Joint, 8-Fixer, 9-Fixer, 10-Fix Ring, 11-tie rod, 12-filter element mounting plate.

Detailed ways

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

Example 1

The filter shown in Figure 1 includes a filter assembly 1, several filter elements 2 are arranged in the filter assembly 1, and a blowback ring pipe 3 arranged around the filter assembly 1, the blowback ring pipe 3 includes a ring pipe main body 4 and The nozzle assembly arranged on the inner ring of the annular pipe main body 4 communicates with the interior of the annular pipe main body 4. In this embodiment, the nozzle assembly includes twelve nozzles 6 arranged on the inner ring of the annular pipe main body 4, adjacent to each other. The directions of the nozzles 6 are all inconsistent and the distances are equal, among which six nozzles 6 face upward and form an included angle of 80° with the main body of the annular pipe, and the remaining nozzles 6 face downward and form an included angle of 80° with the main body of the annular pipe. The main body 4 of the ring pipe is provided with an air inlet 5, and the air inlet 5 is connected with an external blowing gas supply device. In this embodiment, the ring pipe main body 4 is closely connected by two elbows through the joint 7, and the ring pipe main body 4 is connected to the filter assembly 1 through a fixed structure. Fixing piece 8, described fixing piece 8 comprises the fixing piece 9 that links to each other with ring tube main body 4 and the fixing ring 10 that links to each other with fixing piece 9, is equipped with pull rod 11 on each fixing ring 10, and one end of these pull rods 11 is respectively connected with corresponding The fixing ring 10 is connected, and the other end is connected with the filter element installation plate 12 at the end of the filter element 2 on the filter assembly 1 .

As shown in Figure 2, the reverse blowing ring pipe used for the filter in Figure 1 includes a ring pipe main body 4 and a nozzle assembly arranged on the inner ring of the ring pipe main body 4, and the nozzle assembly communicates with the inside of the ring pipe main body 4, so The main body 4 of the ring pipe is provided with an air inlet 5, and some nozzles 6 in the nozzle assembly are arranged in different directions. The blowback ring pipe 3 is formed by connecting two pipe bodies through a joint 7 .

As shown in Figure 3, it is a schematic cross-sectional view of the reverse blowing ring pipe along the A-A line. The ring pipe main body 4 is closely connected by two pipe bodies through two joints 7, and the ring pipe main body 4 is provided with four fixing parts 8. The fixing Part 8 includes a fixed piece 9 connected to the ring pipe main body 4 and a fixed ring 10 connected to the fixed piece 9, the fixed piece 9 is fixed on the inner ring of the ring pipe main body 4, and the fixed ring 10 is in the shape of a hollow cylinder. The sheet 9 is square, and the directions in which adjacent nozzles 6 are arranged are inconsistent.

When in use, the backflushing ring pipe is connected with the nitrogen injection device, and the nitrogen gas is injected into the main body of the ring pipe from the air inlet, and then sprayed out through the nozzle around the inner circle of the backflushing ring pipe, and the direction of the nozzle determines the direction of the ejected gas , the gas is blown through the filter element, so that the deposited filter cake on the surface of the filter element is blown off, thereby improving the recycling rate of the filter element.

Example 2

The difference between this embodiment and Embodiment 1 is that the nozzle assembly in this embodiment includes sixteen nozzles 6 arranged around the inner circle of the annular pipe main body 4, and the directions of adjacent nozzles 6 are not consistent and the distances are equal, of which eight One nozzle 6 faces upward and forms an included angle of 45° with the main body of the annular pipe, and the remaining nozzles 6 face downward and form an included angle of 45° with the main body of the annular pipe 4 .

Example 3

The difference between this embodiment and Embodiment 1 is that the main body 4 of the ring pipe in this embodiment is made of a ring pipe, and there is no joint on the main body 4 of the ring pipe. There are sixteen nozzles 6 , the directions of adjacent nozzles 6 are not consistent and the intervals are equal, and all the nozzles 6 are arranged parallel to the main body 4 of the ring pipe and point to the filter element 2 .

Claims (10)

1. The filter includes a filter assembly (1), several filter elements (2) are arranged in the filter assembly (1), and it is characterized in that it also includes a blowback ring pipe (3) that is set around the filter assembly (1). The ring blowing pipe (3) comprises a ring pipe main body (4) and a nozzle assembly arranged on the inner ring of the ring pipe main body (4), the nozzle assembly communicates with the inside of the ring pipe main body (4), and the ring pipe main body (4) ) is provided with an air inlet (5), and the air inlet (5) is connected with the blowing gas supply device. 2. The filter according to claim 1, characterized in that, the nozzle assembly includes several nozzles (6) arranged on the inner circle of the ring pipe main body (4), and there is a certain interval between adjacent nozzles (6). distance. 3. The filter according to claim 2, characterized in that, some nozzles (6) in the nozzle assembly are arranged in different directions. 4. The filter according to claim 1, characterized in that, the blowback ring pipe (3) is formed by connecting at least two pipe bodies through joints (7). 5. The filter according to claim 1, characterized in that, the ring pipe main body (4) is connected to the filter assembly (1) through a fixing structure. 6. The filter according to claim 5, characterized in that, the fixing structure includes fixing pieces (8) arranged at intervals in the circumferential direction on the ring pipe main body (4), and the fixing pieces (8) include The fixed piece (9) connected to the main body (4) and the fixed ring (10) connected to the fixed piece (9) are equipped with pull rods (11) on the fixed ring (10), and one end of these pull rods (11) is respectively fixed with the corresponding The ring (10) is connected, and the other end is connected with the filter element mounting plate (12) at the end of the filter element (2) on the filter assembly (1). 7. The reverse blowing ring pipe used for the filter according to claim 1 is characterized in that, it comprises a ring pipe main body (4), a nozzle assembly arranged on the inner ring of the ring pipe main body (4), and the nozzle assembly and the ring pipe The main body (4) is connected internally, and an air inlet (5) is arranged on the annular pipe main body (4). 8. The reverse blowing annular pipe according to claim 7, characterized in that, the nozzle assembly includes several nozzles (6) arranged on the inner circumference of the annular pipe main body (4), and between adjacent nozzles (6) There is a certain distance between them. 9. The blowback loop according to claim 8, characterized in that, some nozzles (6) in the nozzle assembly are arranged in different directions. 10. The backflush loop pipe according to claim 7, characterized in that, the backflush loop pipe (3) is formed by connecting at least two pipe bodies through joints (7).