CN2806906Y

CN2806906Y - High temperature smoke butterfly valve

Info

Publication number: CN2806906Y
Application number: CN 200520026631
Authority: CN
Inventors: 魏诗甲; 任秀芹
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-09
Filing date: 2005-07-09
Publication date: 2006-08-16
Anticipated expiration: 2015-07-09

Abstract

The utility model provides a high temperature smoke butterfly valve which is an up-to-date high temperature butterfly valve with novel structure, high temperature resistance, good sealing performance in high temperature and convenient use. Two supporting shafts are symmetrically arranged in a valve body and are connected with a valve clack to form a rotating body, the valve clack is a combined type valve clack which is formed by connecting a thin circular disk to a circular ring of the valve clack and connecting and positioning a plurality of pressing blocks uniformly distributed, and the shaft bodies of the two supporting shafts are sheathed and connected with mechanical sealing assemblies which are sealed and connected to a shaft hole of the valve body. The top end of the upper supporting shaft is connected with a rotary handle, the bottom end of the lower supporting shaft is connected with a steel ball, the supporting shafts and the valve clack are adjusted and positioned by the connection of a rotary cover, and the internal diameter of the valve body is provided with two semicircular sealing rings. When the valve is closed, the end surface of the circular ring of the valve clack is contacted and connected with the sealing rings to form sealing.

Description

The high-temperature flue gas butterfly valve

Technical field

The utility model relates to a kind of valve, especially a kind of high temperature butterfly valve.

Background technique

Along with the continuous development of science and technology and the continuous progress of environmental protection cause, also more and more higher to the technical requirements of environmental protection waste processing equipment needed thereby.Existing reed valve mainly is made up of valve body, butterfly plate, Stuffing box, bearing and support thereof in known technology, and its structure is complicated, and sealing is relatively poor, is under the hot environment when especially long, easily produces external leakage, incurs loss through delay operation, brings inconvenience to use.

Summary of the invention

In order to overcome the deficiency of prior art, the utility model provides a kind of novel structure, and is high temperature resistant, good seal performance at high temperature, new-type high temperature butterfly valve easy to use.

The technological scheme that the utility model technical solution problem is taked is: design is adopted and is shaped on two axis holes by symmetry in the valve body, on in the valve body axis hole, being equiped with respectively, the lower support axle, two supporting axles connect flap and form rotor, flap connects the combined type flap that the location is formed by the thin disk of load on the flap annulus and by several uniform briquettings, and on two supporting axle axis bodies, interlocked mechanical sealing assembly and be sealedly attached to the valve body axis hole, top at the upper support axle is fitted with handle with sleeve, the bottom of lower support axle is fitted with steel ball and is connected supporting axle and flap adjusting location thereof by spiral cover, on valve block internal diameter, be equiped with two semicircle seal rings, during valve closing, the end face of flap annulus and seal ring touch to connect and form sealing, the novel high-temperature flue gas butterfly valve that consists of.

Because technique scheme has been adopted in the utility model design, show through on garbage disposal plant burning drying system, testing result on trial for several times again, the utility model compared with prior art, has novel structure, design innovation, strong in condition of high temperature sealability, resistance to oxidation, long service life, no external leakage hidden danger, frictional force is little, rapid operation, advantage such as easy to use, be applicable to 850 ℃～1000 ℃ high-temperature flue gas environment, the high-temperature flue gas that is particularly useful for garbage disposal plant incinerator generation is transported to baker, installing on the pipeline of heat exchanger etc., in order to the control flue gas flow, is a kind of novel high temperature butterfly valve.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the sectional view of the utility model embodiment concrete structure.

Fig. 2 is that Fig. 1 embodiment's A-A is to view.

Fig. 3 is Fig. 1 embodiment's a left view.

Fig. 4 is the enlarged view of B part among Fig. 3.

Reference character: 1 valve body, 2 briquettings, 3 thin disks, 4 interior circular ring plates, 5 cylindrical ring plates, 6 cappings, 7 handle with sleeves, 8 upper support axles, 9 lower support axles, 10 spiral covers, 11 steel balls, 12 seal rings, 13 flap annulus.

Embodiment

1-is embodiment illustrated in fig. 3 as accompanying drawing, the utility model comprises: butterfly valve body 1, upper support axle 8, lower support axle 9, flap, semicircle seal ring 12, handle with sleeve 7 and annulus alternating expression mechanical sealing assembly, valve body 1 is to be fitted with upper support axle 8, lower support axle 9, flap, the valve body of semicircle seal ring 12 and annulus alternating expression mechanical sealing assembly, flap connects the combined type flap that the location is formed by the thin disk 3 of load on the flap annulus 13 and by several uniform briquettings 2, be shaped on two axis holes in the two ends of valve body 1 symmetry, be equiped with upper support axle 8 and lower support axle 9 in the axis hole respectively, the combined type flap is connected in upper support axle 8 by its flap annulus weldering and lower support axle 9 forms rotor, and at two supporting axles 8, interlock the axis hole that mechanical sealing assembly is sealedly attached to valve body 1 on 9 the axis body respectively, the mechanical sealing assembly of upper support axle 8 is connected and fixed by the capping 6 of load in valve body 1 upper shaft hole mouth, the mechanical sealing assembly of lower support axle 9 is connected and fixed by the spiral cover 10 of load in valve body 1 lower shaft aperture, top at upper support axle 8 also is fitted with handle with sleeve 7, the bottom of lower support axle 9 is fitted with steel ball 11 and is connected supporting axle and flap adjusting location thereof by spiral cover 10, on valve body 1 internal diameter, be equiped with two semicircle seal rings 12, two seal rings 12 are tightly connected movingly with the end face of flap annulus 13, two supporting

axles

8,9 Sealings that connect valve body have adopted annulus alternating expression mechanical sealing assembly, mechanical sealing assembly is made up of the cylindrical ring plate 5 of circular ring plate 4 and equal number in the 2-5 sheet, the internal diameter and the supporting axle of interior circular ring plate 4 are connected, the external diameter of cylindrical ring plate 5 and the axis hole of valve body are connected, and interior circular ring plate 4 is staggered for being separated by with cylindrical ring plate 5 and is connected on the supporting axle axis body; Mechanical sealing assembly or interior circular ring plate are arranged in order, the cylindrical ring plate is arranged in order the mechanical sealing assembly of being formed, or adopt the resistant to elevated temperatures black box of other type.

High temperature butterfly valve of the present utility model adopts the heat-resistance stainless steel material.

Claims

1, a kind of high-temperature flue gas butterfly valve, it comprises valve body, flap, Sealing, it is characterized in that valve body is to be fitted with upper support axle (8), lower support axle (9), flap, the valve body (1) of semicircle seal ring (12) and annulus alternating expression mechanical sealing assembly, flap is gone up the thin disk (3) of load and is connected the combined type flap that the location is formed by several uniform briquettings (2) by flap annulus (13), two ends symmetry at valve body (1) is shaped on two axis holes, be equiped with upper support axle (8) and lower support axle (9) in the axis hole respectively, the combined type flap is connected in upper support axle (8) by its flap annulus (13) weldering and lower support axle (9) forms rotor, and at two supporting axles (8,9) interlock the axis hole that mechanical sealing assembly is sealedly attached to valve body (1) on the axis body respectively, the mechanical sealing assembly of upper support axle (8) is connected and fixed by the capping (6) of load in valve body (1) upper shaft hole mouth, the mechanical sealing assembly of lower support axle (9) is connected and fixed by the spiral cover (10) of load in valve body (1) lower shaft aperture, also be fitted with handle with sleeve (7) on the top of upper support axle (8), the bottom of lower support axle (9) is fitted with steel ball (11) and connects the location by spiral cover (10), be equiped with two semicircle seal rings (12) on valve body (1) internal diameter, two seal rings (12) are tightly connected movingly with the end face of flap annulus (13).

2, high-temperature flue gas butterfly valve according to claim 1, it is characterized in that annulus alternating expression mechanical sealing assembly is made up of the cylindrical ring plate (5) of circular ring plate (4) and same piece number in the 2-5 sheet, the internal diameter and the supporting axle of interior circular ring plate (4) is connected, the external diameter of cylindrical ring plate (5) and the axis hole of valve body are connected, and interior circular ring plate (4) is separated by to be staggered with cylindrical ring plate (5) and is connected on the supporting axle axis body.