CN204754997U - Brush seal structure with adjustable function - Google Patents

Abstract

The utility model relates to a brush seal structure with adjustable function, including having the multistage segmental arc and the brush sealed body of the face that seals, its characterized in that at the thickness of the both ends of each segmental arc department through changing little out -of -the -way arc, forms two abrupt platforms of adjustment that can be used to adjust vapour / airtight radial clearance. Adopt the utility model provides an after the structure, be used for vapour (gas) sealed when brush sealed with the installation examining and repairing, can carry out accuracy, simple and direct, quick processing to adjusting abrupt to the radial clearance who makes sealed face reaches accurate operation requirement.

Description

A kind of brush seal structure with adjustable function

Technical field

The utility model relates to the brush seal sealed for vapour (gas), belongs to turbomachinery field of sealing technology.

Background technique

Due to the brush seal structure that existing vapour (gas) seals, in maintenance and installation process, adjust workload large, and Adjustment precision is very low.As illustrated in figures ia and ib, in installation and maintenance process, as found, the sealing surface 4 of brush seal body 1 can not reach usage requirement, then by processing little convex surface 2,3, workload is large, and process uneven, finally cause sealing surface 4 accurately can not reach usage requirement, thus cause the leakage loss of medium to increase and affect the Security used.

Summary of the invention

The purpose of this utility model is to provide one can the brush seal structure that seals of accurate, simple and direct, rapid adjustment vapour (gas).

In order to achieve the above object, the technical solution of the utility model there is provided a kind of brush seal structure with adjustable function, comprise the brush seal body with multistage segmental arc and sealing surface, it is characterized in that, at the two ends place of each segmental arc by changing the thickness of little back of the body arc, form the adjustment convex that two can be used for adjusting vapour/hermetic seal radial clearance.

After the structure that provides of the utility model is provided, overhaul and install be used for brush seal that vapour (gas) seals time, can to adjustment convex carry out accurate, simple and direct, process fast, thus make the radial clearance of sealing surface reach accurate usage requirement.

Accompanying drawing explanation

Figure 1A is former common brush seal structure schematic diagram;

Figure 1B is that A-A in Figure 1A is to sectional view;

Fig. 2 A is the brush seal structure schematic diagram with adjustable function;

Fig. 2 B is that A-A in Fig. 2 A is to sectional view.

Embodiment

For making the utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.

As shown in Figure 2 A and 2 B, a kind of brush seal structure with adjustable function that the utility model provides comprises the brush seal body 1 with multistage segmental arc and sealing surface 4, process with the little back of the body arc of special processing mode to each segmental arc two ends, to form adjustment convex 5.

Period, note the remaining thickness of little back of the body arc, can not be too little, otherwise the original effect of little back of the body arc can be lost, reduce safety coefficient.Note the height relative to little back of the body arc of adjustment convex 5, highly whether the workload of suitable decision installation and repairing and Security when using.

Claims (1)

1. one kind has the brush seal structure of adjustable function, comprise the brush seal body (1) with multistage segmental arc and sealing surface (4), it is characterized in that, at the two ends place of each segmental arc by changing the thickness of little back of the body arc, form the adjustment convex (5) that two can be used for adjusting vapour/hermetic seal radial clearance.