CN105387223A

CN105387223A - Flexible sealing slide plate gate

Info

Publication number: CN105387223A
Application number: CN201510348545.6A
Authority: CN
Inventors: 丁毅
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-06-24
Filing date: 2015-06-24
Publication date: 2016-03-09

Abstract

A flexible sealing slide plate gate used for cutting off pipe airflow comprises a gate frame and an inserting plate (1) arranged in the gate frame. The right half part of the gate frame is sealed. An air inlet (2) connected with an outer pipe is formed in the left half part of the gate frame, and the inserting plate can shield the air inlet when moving in the gate plate. The flexible sealing slide plate gate is characterized in that a guide pipe (31) with the sealed head and tail is fixed to the inner wall of the air inlet; the guide pipe is parallel to the inserting plate, and a gap is reserved between the guide pipe and the inserting plate; a groove opening (32) is formed in the guide pipe and faces the inserting plate; a rubber pipe (3) is arranged in the guide pipe; and an air tap (33) on the rubber pipe penetrates out of the guide pipe and the wall of the gate frame, and the rubber pipe can be attached to the inserting plate after being inflated with air. The flexible sealing slide plate gate has the characteristics that as the rubber pipe is elastic, and no clearance exists between the rubber pipe and the inserting plate, reliable sealing can be achieved; a cavity of the rubber pipe is sealed, so that almost no high-pressure air source is consumed; the inserting plate moves so that the rubber pipe can contract in the guide pipe, and the rubber pipe cannot be worn; and the sealing performance of the slide plate gate can be kept, and the service life of the slide plate gate is prolonged.

Description

Flexible sealing insertion plate door

Technical field

The present invention relates to a kind of flexible sealing insertion plate door for cutting off pipe gas flow, it comprises doorframe and is arranged on the plate in doorframe, and movable flashboard can make insertion plate door open or close.

Background technique

Existing insertion plate door comprises doorframe and plate, is provided with suction port in the left side of doorframe, and when plate is positioned at suction port place, insertion plate door is closed, and when plate leaves suction port, insertion plate door is opened; When some occasion is as closed the bypass tube of large-sized boiler flue, do not allow the flue gas in bypass tube to leak from insertion plate door, because surface of contact between plate and suction port and the surface of contact between plate and doorframe are rigid contact, therefore inevitably there is gap, for eliminating the impact in gap, plate adopts double layer construction, by inputting high-pressure air (its pressure is greater than the pressure in bypass tube) in the interlayer of plate, an air curtain can be formed in the surrounding of plate like this, stop that flue gas passes through insertion plate door.The deficiency of the method is, will input high-pressure air when insertion plate door is closed, and power consumption is large; In addition when after use a period of time because gap between friction plate and suction port can increase, to make in plate air pressure decline, affect sealability.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of flexible sealing insertion plate door, and this insertion plate door reliably can realize sealing, and it is few to consume high-pressure air when being positioned at closed position, can energy saving.

This flexible sealing insertion plate door, comprises doorframe, the plate 1 arranged in doorframe, and the right-hand part of doorframe is closed, and the left side of doorframe is provided with the suction port 2 be connected with external pipe, can cover suction port when plate moves in doorframe; It is characterized in that, the inwall of suction port is fixed with the guide pipe 31 that head and the tail are closed, guide pipe parallels with plate and leaves gap, guide pipe is provided with notch 32, notch is towards plate, be provided with rubber pipe 3 in guide pipe, on rubber pipe, air nozzle 33 passes from the wall of guide pipe and doorframe, is affixed rubber pipe energy and plate after rubber pipe inflation.

The feature of this flexible sealing insertion plate door is, namely, when plate moves to suction port position upon closing, fill with high-pressure air to rubber pipe, rubber pipe is exposed from the notch of guide pipe and is affixed with plate, because rubber pipe has between elasticity itself and plate seamless, can reliable sealing; The cavity of rubber pipe is closed, very little to the tolerance of its inflation, consumes high-pressure air source hardly; Exit by air nozzle when plate moves, allow rubber pipe be contracted in guide pipe, without friction between plate and rubber pipe, rubber pipe can not produce wearing and tearing, can keep the sealability of insertion plate door, improves the working life of insertion plate door.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 be the A-A of Fig. 1 to sectional view, save connecting body part in this figure.

Fig. 3 is that the B-B of Fig. 1 is to sectional view.

Fig. 4 is the C portion enlarged view of Fig. 2.

In accompanying drawing, mark represents respectively: 1-plate, 11-connecting body, 12-driveshaft, 13-drive pole socket, 14-bolt, 2-suction port, 21-left lateral, the upper edge of 22-, edge, 25-cover plate, 3-rubber pipe, 31-guide pipe, 32-notch, 33-air nozzle, 34-nut, 41-dividing plate, 42-gusset, 43-guide rail under portion, 24-on the right of 23-.

Embodiment

Existing accompanying drawings the specific embodiment of the present invention.

This flexible sealing insertion plate door, comprise doorframe, the plate 1 arranged in doorframe, described doorframe is that rectangle is made up of left lateral 21, upper edge 22, the right portion 23, lower edge 24, the right-hand part of doorframe is closed with cover plate 25, the right-hand part of doorframe can hold plate, be provided with the suction port 2 be connected with external pipe in the left side of doorframe, when plate moves in doorframe, can suction port be covered; The inwall of suction port is fixed with the guide pipe 31 that head and the tail are closed, guide rail 43 is respectively equipped with along its length in the upper edge of doorframe and lower edge, guide rail parallels with plate, guide pipe, guide rail is the mobile guide of plate, and guide pipe is provided with notch 32, and notch is towards plate, in guide pipe, hoop is provided with rubber pipe 3, on rubber pipe, air nozzle 33 passes from the wall of guide pipe and doorframe, and air nozzle is fixed on doorframe by nut 34, is affixed rubber pipe energy and plate after rubber pipe inflation.

Connecting body 11 is arranged on the right-hand member of plate by bolt 14, connecting body is connected with driveshaft 12, the right portion 23 of doorframe is fixed with and drives pole socket 13, one end of driveshaft is stretched out from driving pole socket, be connected with the power plant (not drawing in accompanying drawing) of outside, under the driving of power plant, plate moved.

The channel cross-sectional shape of described suction port is circular or rectangle, the channel cross-section of rectangle can be saved material and can increase the Throughput of suction port compared with the channel cross-sectional shape of circle, when adopting the channel cross-section structure of rectangle, described suction port surrounded by upper edge 22 and lower edge 24 and two pieces of dividing plates 41, the corner of described guide pipe 31 is arc transition, and between the arc-shaped transitional surface and the corner of suction port of guide pipe, filling is welded with gusset 42.

The plate of flexible sealing insertion plate door, when mobile, is contracted in guide pipe, without friction between rubber pipe and plate to rubber pipe venting rubber pipe; When plate covers suction port, filling rubber pipe makes it expand with high-pressure air (air pressure is greater than pressure in institute's connecting tube), rubber pipe exposes from the notch of guide pipe, be close to plate, the microcosmic that the resiliently deformable that rubber pipe produces can be filled up between plate on surface of contact is uneven, realizes the reliable sealing of insertion plate door.Described rubber pipe is made up of ethylene propylene diene rubber or silicone rubber material, and it has good resistance to high temperature and elasticity.

Claims

1. a flexible sealing insertion plate door, comprises doorframe, the plate (1) arranged in doorframe, and the right-hand part of doorframe is closed, and the left side of doorframe is provided with the suction port (2) be connected with external pipe, can cover suction port when plate moves in doorframe; It is characterized in that, the inwall of suction port is fixed with the guide pipe (31) that head and the tail are closed, guide pipe parallels with plate and leaves gap, guide pipe is provided with notch (32), notch is towards plate, be provided with rubber pipe (3) in guide pipe, on rubber pipe, air nozzle (33) passes from the wall of guide pipe and doorframe, is affixed rubber pipe energy and plate after rubber pipe inflation.

2. flexible sealing insertion plate door according to claim 1, it is characterized in that, the channel cross-sectional shape of described suction port is rectangle, described suction port surrounded by upper edge (22) and lower edge (24) and two pieces of dividing plates (41), the corner of described guide pipe (31) is arc transition, and between the arc-shaped transitional surface and the corner of suction port of guide pipe, filling is welded with gusset (42).