CN214635110U

CN214635110U - Piston cylinder structure of electric bag dust remover blowback deashing system

Info

Publication number: CN214635110U
Application number: CN202120744654.0U
Authority: CN
Inventors: 李仕国; 狄成功; 刘惠明; 孔秀琴; 马文刚
Original assignee: Gansu Senlong Environmental Protection Engineering Technology Co ltd
Current assignee: Gansu Senlong Environmental Protection Engineering Technology Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-11-09
Anticipated expiration: 2031-04-13

Abstract

The utility model discloses a piston cylinder structure of a blowback dust cleaning system of an electric bag dust remover, which comprises a first cylinder, a second cylinder, a piston, a first elbow and a second elbow; a wear-resisting ring is arranged in the second cylinder; the clean flue gas inlet pipe, the first elbow and the piston are sequentially butted, the second cylinder, the first cylinder, the second elbow and the gas tank are sequentially butted, and the free end of the piston penetrates through a wear-resistant ring of the second cylinder and extends into the first cylinder; the width of a gap between the piston and the wear-resistant ring is smaller than the width of a gap between the piston and the first cylinder; in the process that the air box swings along the set linear track, the piston swings around the axis of the clean flue gas inlet pipe as the center of a circle, and in the swinging process, the piston moves in the first air cylinder and the second air cylinder in a telescopic stroke mode. The utility model provides a problem of wearing and tearing, leakage that current piston cylinder structure exists, effectively prolonged the life and the operating mass with rated load of structure.

Description

Piston cylinder structure of electric bag dust remover blowback deashing system

Technical Field

The utility model belongs to the technical field of remove dust, especially, relate to a piston cylinder structure of blowback deashing system of compound horizontal dust remover of electricity bag.

Background

A piston-cylinder device of an electric bag composite horizontal dust remover is used for conveying dust removing gas in a back-blowing dust removing system and controlling the stroke, and comprises a cylinder 1, a piston 2 (a circular thin-wall steel pipe with openings at two ends, delta is 3mm and can freely move in the cylinder 1), an elbow I and an elbow II, wherein the air inlet end of the elbow I is connected with a clean flue gas inlet pipe, the air outlet end of the elbow I is fixedly connected with one end of the piston 2, the other end of the piston 2 is inserted into the cylinder 1 from one end of the cylinder 1, a certain gap exists between the piston 2 and the cylinder 1, the other end of the cylinder 1 is fixedly connected with the elbow II, the air outlet end of the elbow II is connected with an air box 3, the air box 3 moves back and forth along a linear track, and the piston 2 and the cylinder 1 swing by taking the axis of the clean flue gas inlet pipe as the center, and the piston 2 and the cylinder 1 can move back and forth along the linear track.

When the ash removal system of the electric bag composite horizontal dust remover operates, a PLC program detects that the differential pressure of the electric bag dust remover reaches a set value, the ash removal mechanism program automatically operates, the air box 3 starts to move rightwards in a track under the traction action of the transmission device, the air box 3 drives the elbow I and the elbow II to rotate clockwise around respective circle centers while moving, and the piston 2 and the air cylinder 1 synchronously perform reverse movement; on the contrary, when the air box 3 moves to a fixed point, the air box 3 moves in the reverse direction (moves leftwards) and simultaneously drives the elbow I and the elbow II to rotate anticlockwise around respective circle centers, and the piston 2 pipe and the cylinder 1 synchronously move in opposite directions. In the whole process, the elbow I in the piston-cylinder device rotates relative to the elbow II and moves left and right in parallel, but the vertical distance between the elbow I and the elbow II is not allowed to change, at the moment, the piston 2 and the cylinder 1 achieve the purpose of conveying the ash cleaning gas to achieve ash cleaning through contraction or stretching, and in addition, the stroke and the displacement of the piston-cylinder device are controlled through contraction or stretching.

However, the problems of the existing piston-cylinder device are mainly shown in that:

(1) when the piston 2 and the cylinder 1 contract or stretch relatively, because the piston 2 is sleeved in the cylinder 1 without any lubrication, the piston 2 and the cylinder 1 are worn due to long-term operation, the piston 2 and the cylinder 1 are damaged, the ash cleaning gas leaks and the like, and the ash cleaning system cannot work normally;

(2) when the piston 2 and the cylinder 1 move relatively and contract, the end of the piston 2 inserted into the cylinder 1 is easy to jam with the cylinder 1, so that parts are damaged;

(3) in order to ensure the smooth relative movement between the piston 2 and the cylinder 1, a certain gap (such as a gas leakage point shown in fig. 1 and 2) is left between the two components, because the ash removal gas in the gap has certain leakage, 100% of the ash removal gas can not be ensured to participate in the ash removal process, the energy consumption is too large, and the purposes of energy conservation and consumption reduction can not be achieved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a piston cylinder structure of blowback deashing system of compound horizontal dust remover of electricity bag aims at solving the problem that prior art exists among the above-mentioned background art.

The utility model is realized in such a way, a piston cylinder structure of a blowback dust cleaning system of an electric bag dust remover, which is used for butt joint of a clean flue gas inlet pipe and a gas box, the gas box swings along a set linear track, the linear track is vertical to the axis of the clean flue gas inlet pipe, and the piston cylinder structure comprises a first cylinder, a second cylinder, a piston, a first elbow and a second elbow; the piston is in a hollow tubular shape with two open ends; a wear-resisting ring is arranged in the second cylinder; the clean flue gas inlet pipe, the first elbow and the piston are sequentially butted, the second cylinder, the first cylinder, the second elbow and the gas tank are sequentially butted, and the free end of the piston penetrates through a wear-resistant ring of the second cylinder and extends into the first cylinder; the width of a gap existing between the piston and the wear-resistant ring is smaller than the width of a gap existing between the piston and the first cylinder;

in the process that the air box swings along the set linear track, the piston swings around the axis of the clean flue gas inlet pipe as the center of a circle, and in the swinging process, the piston moves in the first cylinder and the second cylinder in a telescopic stroke manner.

Preferably, the piston cylinder structure further comprises a plurality of rollers, the rollers are symmetrically distributed with the axis of the second cylinder as the center, the base of each roller is fixed to the end, close to the piston, of the second cylinder, and the wheels of the rollers are supported on the piston.

Preferably, the first elbow and the second elbow are both right-angle elbows.

Compare in prior art's shortcoming and not enough, the utility model discloses following beneficial effect has: the utility model provides a problem of wearing and tearing, leakage that current piston cylinder structure exists, effectively prolonged the life and the operating mass with rated load of structure.

Drawings

FIG. 1 is a schematic diagram of a piston and cylinder assembly of a prior art piston-cylinder assembly in a central position in which a first elbow I is at a minimum distance from a second elbow II;

FIG. 2 is a schematic diagram of a piston and cylinder of a prior art piston-cylinder arrangement at an angle of 35 degrees from their center positions;

fig. 3 is a schematic structural diagram of the piston-cylinder structure of the present invention;

FIG. 4 is an enlarged structural view of portion A of FIG. 3;

fig. 5 is a schematic structural diagram of the piston and cylinder of the piston-cylinder structure when operating left and right along with the gas tank.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 3-5, wherein fig. 3 is a schematic structural diagram of the piston cylinder structure of the present invention; FIG. 4 is an enlarged structural view of portion A of FIG. 3; fig. 5 is a schematic structural diagram of the piston and cylinder of the piston-cylinder structure when operating left and right along with the gas tank.

The utility model discloses a piston cylinder structure of an electric bag dust remover blowback deashing system, which is used for butting a clean flue gas inlet pipe 4 and a gas box 5, wherein the gas box 5 swings along a set linear track (the view is omitted in the figure), the linear track is vertical to the axle center of the clean flue gas inlet pipe 4, and the piston cylinder structure comprises a first cylinder 6, a second cylinder 7, a piston 8, a first elbow 9 and a second elbow 10; the piston 8 is in a hollow tubular shape with two open ends; a wear-resisting ring (omitted in the drawing) is arranged in the second cylinder 7; the clean flue gas inlet pipe 4, the first elbow 9 and the piston 8 are sequentially butted, the second cylinder 7, the first cylinder 6, the second elbow 10 and the gas box 5 are sequentially butted, and the free end of the piston 8 penetrates through a wear-resistant ring of the second cylinder 7 and extends into the first cylinder 6; the width of the gap existing between the piston 8 and the wear-resistant ring is smaller than the width of the gap existing between the piston 8 and the first cylinder 6; in the process that the air box 5 swings along the set linear track, the piston 8 swings around the axis of the clean flue gas inlet pipe 4 as the center of a circle, in the swinging process, the piston 8 moves in the first cylinder 6 and the second cylinder 7 in a telescopic stroke manner, and the flue gas of the clean flue gas inlet pipe 4 sequentially passes through the piston 8, the first cylinder 6 and the second cylinder 7 and is finally sent into the air box 5 under the driving of the fan.

In the embodiment of the present invention, the first cylinder 6 and the second cylinder 7 are connected as a whole in a coaxial manner, the outer diameters of the first cylinder 6 and the second cylinder 7 are the same, but the inner diameters are different, wherein there is a wear-resistant ring in the second cylinder 7, so the gap between the second cylinder 7 and the piston 8 is small, and the gap between the first cylinder 6 and the piston 8 is large. In actual conditions, the pipe wall of first cylinder 6 is thinner, the utility model discloses a set up wear ring's mode in second cylinder 7, can ensure that piston 8 can not wear and tear first cylinder 6, and is not fragile, prolongs first cylinder 6's life. In addition, the purpose of not providing the wear-resistant ring in the first cylinder 6 is also to ensure that the piston 8 is not caught by the wear-resistant ring in the cylinder and damaged when the piston 8 is stretched and compressed.

In the embodiment of the present invention, as a preferred structure, the first elbow 9 and the second elbow 10 are both right-angle elbows.

In a further implementation process, in order to further ensure that the piston 8 and the cylinder can always run coaxially to avoid friction between the piston 8 and the cylinder, in the embodiment of the present invention, specifically, the piston 8 cylinder structure further includes a plurality of rollers 11, the plurality of rollers 11 are distributed with the axis of the second cylinder 7 as a central symmetry, the base of the roller 11 is fixed at the end of the second cylinder 7 close to the direction of the piston 8, and the wheel of the roller 11 is supported on the piston 8. When the piston 8 performs telescopic motion relative to the cylinder, under the positioning of the rollers 11, the piston 8 can always keep a coaxial state with the cylinder, and the service life of the cylinder can be further prolonged.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A piston cylinder structure of a back-blowing dust-cleaning system of an electric bag dust remover is used for butting a clean flue gas inlet pipe and a gas box, wherein the gas box swings along a set linear track, and the linear track is vertical to the axis of the clean flue gas inlet pipe; the piston is in a hollow tubular shape with two open ends; a wear-resisting ring is arranged in the second cylinder; the clean flue gas inlet pipe, the first elbow and the piston are sequentially butted, the second cylinder, the first cylinder, the second elbow and the gas tank are sequentially butted, and the free end of the piston penetrates through a wear-resistant ring of the second cylinder and extends into the first cylinder; the width of a gap existing between the piston and the wear-resistant ring is smaller than the width of a gap existing between the piston and the first cylinder;

2. The piston cylinder structure of the back-blowing ash-cleaning system of the electric bag dust remover according to claim 1, wherein the piston cylinder structure further comprises a plurality of rollers, the rollers are symmetrically distributed with the axis of the second cylinder as the center, the base of each roller is fixed at the end of the second cylinder close to the piston direction, and the wheels of the rollers are supported on the piston.

3. The piston cylinder structure of the back-blowing ash-cleaning system of the electric bag dust remover as claimed in claim 1, wherein the first elbow and the second elbow are both right-angle elbows.