CN217234682U - Leak-proof multi-stage sealing self-aligning device of soot blower - Google Patents

Abstract

The utility model relates to a soot blower leak protection multistage seal is from aligning device. At present, a soot blower generally adopts high-temperature and high-pressure superheated steam to blow soot, but in order to ensure that a soot blower gun tube moves smoothly and flexibly, wall box casting materials are sealed and cannot be tightly matched with the soot blower gun tube. The utility model provides a multistage sealed self-aligning device of soot blower leak protection which constitutes and includes: the self-aligning corrugated pipe comprises a pipe body (2-1), a front flange plate (2-2) and a rear flange plate (2-3), and the pipe body is connected with the front flange plate and the rear flange plate into an integral structure. The utility model discloses be applied to the boiler and blow the ash field.

Description

Leak-proof multi-stage sealing self-aligning device of soot blower

Technical Field

The utility model relates to a soot blower leak protection multistage seal is from aligning device.

Background

The existing soot blower generally adopts high-temperature and high-pressure superheated steam for soot blowing, but in order to ensure that a soot blower barrel moves smoothly and flexibly, the wall box castable seal cannot be closely matched with the soot blower barrel. All there is certain gap in through-wall department, and a large amount of unheated air directly gets into furnace and reduces boiler efficiency when the interior negative pressure of boiler, and when the boiler malleation, fly ash and flame in the stove can be followed the clearance between soot blower barrel and the wall case and are popped out, and the coal ash can be popped out, pollutes the surrounding environment, threatens personal equipment safety.

Disclosure of Invention

The utility model aims at providing a soot blower leak protection multistage seal is from aligning device.

The above purpose is realized by the following technical scheme:

a soot blower leak-proof multi-stage sealing self-aligning device comprises: the self-aligning corrugated pipe comprises a pipe body, a front flange plate and a rear flange plate, wherein the pipe body is connected with the front flange plate and the rear flange plate into an integral structure;

three supporting vertical plates which are uniformly distributed in a circumferential direction of 120 degrees are arranged on a rear flange plate at the tail end of the self-aligning corrugated cylinder, and the supporting vertical plates are connected with a central positioning roller.

The central positioning roller consists of a support, a roller, a threaded rod, an upper locking nut and a lower locking nut, the threaded rod is screwed into the threaded hole of the supporting vertical plate, the upper locking nut and the lower locking nut are screwed into the threaded rod, the end part of the threaded rod is connected with the support, and the support is rotatably connected with the roller.

The leakproof multistage sealing self-aligning device for the soot blower is characterized in that a fixed sealing ring is arranged in a round hole of a wall box, and the fixed sealing ring is composed of two sealing ring pressing plates and sealing rings to form first-stage sealing.

The inner wall of the tail end of the self-aligning corrugated tube is sequentially provided with a damping spring sealing plate and a self-contact sealing sheet to form second-level dynamic sealing and third-level self-contact sealing.

The utility model has the advantages that:

1. the utility model discloses set up three central positioning roller that circumferencial direction journey 120 evenly arranged at ripple section of thick bamboo end, utilize the radial automatic compensation volume of bellows and three central positioning roller location barrel axle centers, guarantee from contact gasket mounting flange axle center and barrel axle center coincidence.

2. The utility model discloses a fixed seal ring, toper receive grey ware, from aligning ripple section of thick bamboo, damping spring closing plate, from the contact gasket. The utility model discloses a main objective increases the leakproofness through multistage sealed setting, reduces to blow the influence that the rifle sleeve pipe warp to sealing performance, reduces simultaneously from the contact gasket to the wearing and tearing of soot blower sheathed tube, receives grey ware through the toper and collects the dust, prevents that the dust from wafting in a large number in the space, effectively judges simultaneously whether fixed seal ring damages, the in time maintenance of being convenient for. Thereby reduce the inside and outside differential pressure fluctuation of furnace when the soot blower is worked and produce the damage on making the sealing ring, avoid leading to a large amount of high temperature flue gas or the direct burning loss of flame in the stove from the contact gasket because the malleation. Simple structure, can better adapt to the on-the-spot demand, convenient to popularize and use.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a second angular configuration of fig. 1.

Fig. 3 is a partially enlarged view of fig. 2.

Fig. 4 is a front view of fig. 1.

Fig. 5 is a rear view of fig. 4.

Fig. 6 is a right side view of fig. 4.

Fig. 7 is a sectional view a-a of fig. 6.

In the figure: 1. the device comprises a conical ash collector, 2 parts of a self-aligning corrugated tube, 3 parts of a central positioning wheel, 4 parts of a wall box, 5 parts of an ash conveying port, 6 parts of a supporting vertical plate, 7 parts of a fixed sealing ring, 8 parts of a damping spring sealing plate, 9 parts of a self-contact sealing sheet, 10 parts of a sealing ring pressing plate, 11 parts of a self-contact sealing sheet pressing plate, 2-1 parts of a pipe body, 2-2 parts of a front flange plate, 2-3 parts of a rear flange plate, 3-1 parts of a support, 3-2 parts of a roller, 3-3 parts of a threaded rod, 3-4 parts of an upper locking nut, and 3-5 parts of a lower locking nut.

The specific implementation mode is as follows:

example 1:

a soot blower leak-proof multi-stage sealing self-aligning device comprises: the self-aligning corrugated pipe comprises a conical ash collector 1, a self-aligning corrugated pipe 2 and a central positioning wheel 3, wherein a flange plate on the large-diameter end of the conical ash collector is connected with a wall box 4, the conical ash collector is provided with a slope structure, an ash conveying port 5 is arranged at the lowest point of the slope structure, the small-diameter end of the conical ash collector is connected with a rear flange plate at one end of the self-aligning corrugated pipe, the self-aligning corrugated pipe consists of a pipe body 2-1, a front flange plate 2-2 and a rear flange plate 2-3, and the pipe body is connected with the front flange plate and the rear flange plate into an integral structure; three supporting vertical plates 6 which are uniformly distributed in a circumferential direction of 120 degrees are arranged on a rear flange plate at the tail end of the self-aligning corrugated cylinder, and the supporting vertical plates are connected with a central positioning roller. The central positioning roller consists of a support 3-1, a roller 3-2, a threaded rod 3-3, an upper locking nut 3-4 and a lower locking nut 3-5, the threaded rod is screwed into a threaded hole of the supporting vertical plate, the upper locking nut and the lower locking nut are screwed onto the threaded rod, the end part of the threaded rod is connected with the support, and the support is rotatably connected with the roller.

Example 2:

according to the soot blower leakage-proof multi-stage sealing self-aligning device in embodiment 1, the wall box circular hole is internally provided with the fixed sealing ring 7, and the fixed sealing ring is composed of two sealing ring pressing plates and a sealing ring to form first-stage sealing.

Example 3:

according to the soot blower leakage-proof multi-stage sealing self-centering device in the embodiment 1 or 2, the damping spring sealing plate 8 and the self-contact sealing plate 9 are sequentially arranged on the inner wall of the tail end of the self-centering corrugated tube to form second-stage dynamic sealing and third-stage self-contact sealing.

Example 4:

the working principle is as follows:

the ash ware is received to toper is provided with the slope, and the minimum sets up defeated ash mouth, and ash, sediment in time discharge under the action of gravity avoids long-term effect down the impurity emergence caking. The small-diameter end of the conical ash collector is connected with one end of the self-aligning corrugated tube, the self-aligning corrugated tube comprises a tube body, a front flange plate and a rear flange plate, the flange plates are connected to the front end and the rear end of the tube body respectively, the distance from the furnace wall is far, and the self-contact sealing piece is prevented from being baked and deformed for a long time. The tail end of the corrugated cylinder is provided with three central positioning rollers which are uniformly arranged in a circumferential direction of 120 degrees, the three central positioning rollers are connected with threaded holes in the supporting vertical plate, the positioning rollers are adjusted through a threaded structure, the positioning rollers are locked through upper and lower locking nuts after adjustment, and the axle center of the gun barrel is positioned by utilizing the radial automatic compensation amount of the corrugated pipe and the three central positioning rollers, so that the axle center of the self-contact sealing piece mounting flange plate is ensured to be coincident with the axle center of the gun barrel. The seal at the through-wall part is a fixed seal ring, a circle of high-temperature-resistant and wear-resistant seal ring is arranged, and the gap between the seal ring and the soot blower is larger to form primary seal. And the tail end of the self-aligning corrugated cylinder is sequentially provided with a damping spring sealing plate and a self-contact sealing plate to form second-level dynamic sealing and third-level self-contact sealing. The damping spring sealing plate blocks ash and slag and flame under extreme conditions, when pressure fluctuates instantly and is large, the damping spring is compressed extremely, the damping spring sealing plate and the side wall are attached to form dynamic sealing, and the damage of pressure fluctuation to self-contact sealing is reduced. The self-contact sealing sheet ensures that the self-contact sealing sheet is tightly wrapped with a soot blower gun barrel, and soot leakage and air leakage are thoroughly reduced.

Claims (2)

1. A soot blower leak-proof multi-stage sealing self-aligning device comprises: toper is received grey ware, is from aligning ripple section of thick bamboo and central locating wheel, characterized by: the flange plate on the large-diameter end of the conical ash collector is connected with a wall box, the conical ash collector is provided with a slope structure, the lowest point of the slope structure is provided with an ash conveying port, the small-diameter end of the conical ash collector is connected with the rear flange plate at one end of the self-aligning corrugated tube, the self-aligning corrugated tube consists of a tube body, a front flange plate and a rear flange plate, and the tube body, the front flange plate and the rear flange plate are connected into an integral structure;

three supporting vertical plates which are uniformly distributed in the circumferential direction of 120 degrees are arranged on a rear flange plate at the tail end of the self-aligning corrugated cylinder, and the supporting vertical plates are connected with a central positioning roller;

the anti-leakage multistage sealing self-aligning device for the soot blower is characterized in that a central positioning roller consists of a support, a roller, a threaded rod, an upper locking nut and a lower locking nut, the threaded rod is screwed into a threaded hole of a supporting vertical plate, the upper locking nut and the lower locking nut are screwed into the threaded rod, the end part of the threaded rod is connected with the support, and the support is rotatably connected with the roller.

2. The soot blower leak-proof multi-stage sealing self-aligning device as claimed in claim 1, wherein: a fixed sealing ring is arranged in the circular hole of the wall box, and the fixed sealing ring consists of two sealing ring pressing plates and sealing rings to form first-stage sealing; and the inner wall of the tail end of the self-aligning corrugated tube is sequentially provided with a damping spring sealing plate and a self-contact sealing plate to form a second-stage dynamic seal and a third-stage self-contact seal.

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