CN2748717Y

CN2748717Y - Hoist type high torque large-scale butterfly valve

Info

Publication number: CN2748717Y
Application number: CN 200420067302
Authority: CN
Inventors: 余守明
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-02
Filing date: 2004-06-02
Publication date: 2005-12-28
Anticipated expiration: 2014-06-02

Abstract

The utility model relates to a hoist type high torque large-scale butterfly valve. A valve core 5 is fixed on a valve body 1 via a valve core axle 4, a left and a right hoists 9, 8 are respectively fixed out of the valve body at the two sides of the valve core 5, and the steel cable 3, 6 on the left and the right hoists are respectively fixed at the two sides of the valve core 5 via a left and a right guiding pulley 2, 7. Compared with the opening and closing mode of the valve core axle, the starting torque transmitted by the hoist can be increased about 10 times, the anti dust deposition ability can be increased, and the utility model can satisfy the requirements of flue gas pipeline in the field of nonferrous metallurgy industry and sulphuric acid industry, etc.

Description

A kind of winding type high torque (HT) macrotype butterfly valve

Affiliated technical field the utility model relates to a kind of macrotype butterfly valve that is used for field major diameter high-temperature flue gas pipelines such as nonferrous smelting industry, sulfuric acid industry.

All there are shortcomings such as anti-laying dust ability, poor reliability in various degree in the butterfly valve that background technique is mainly used on field major diameter high-temperature flue gas pipelines such as nonferrous smelting industry, sulfuric acid industry at present.Characteristics such as corrosivity is strong because the fume pipe in fields such as nonferrous smelting industry, sulfuric acid industry exists, high temperature, dust-laden are big, laying dust is serious in the pipeline, cause valve opening and closing not smooth, even the phenomenon that valve is difficult to open occurs, existing various large-scale valves all can not meet the demands.

Summary of the invention is to be solved in the utility model to be the anti-laying dust ability of above-mentioned butterfly valve, open and close not smooth problem.

At have the shortcoming that butterfly valve exists now in the fume pipe environment in fields such as nonferrous smelting industry, sulfuric acid industry, the utility model provides a kind of winding type high torque (HT) macrotype butterfly valve that spool is opened changes distance that increases: it comprises valve body, spool and spool start-stop device, spool is fixed in the body cavity by rotating shaft, the spool start-stop device is made up of left and right sides elevator and left and right sides leading block, left and right sides elevator is separately fixed at outside the valve body of spool both sides, and its rotating shaft is parallel with valve core shaft; Wire rope on the elevator of the left and right sides is separately fixed at the spool both sides, and left and right sides leading block is separately fixed at the spool both sides and wire rope is vertically passed through valve body.

Owing to adopt the elevator transmission to spur valve core rotation, compare because the arm of force prolongs greatly with traditional valve core shaft opening/shutting mode, starting changes apart from increasing nearly ten times, anti-laying dust ability improves greatly, can satisfy the requirement of the fume pipe in fields such as nonferrous smelting industry, sulfuric acid industry, and structure is also very simple, easy to operate.

Description of drawings Fig. 1 is the utility model structural representation.

Fig. 2 is a spool opening state schematic representation.

Embodiment the utility model winding type high torque (HT) macrotype butterfly valve structure is by shown in Figure 1, spool [5] is fixed on the valve body [1] by valve core shaft [4], left and right sides elevator [9,8] is separately fixed at outside the valve body [1] of spool [5] both sides, and its rotating shaft is parallel with valve core shaft [4]; Wire rope on the elevator of the left and right sides [3,6] is separately fixed at spool [5] the radius outer end both sides vertical with valve core shaft [4], and left and right sides leading block [2,7] is separately fixed at spool [5] both sides and wire rope [3,6] is vertical with valve body [1] by opening wire rope hole on valve body.Spool is in closed condition shown in Fig. 1, and right elevator [8] work Wound steel rope [6] drives spool [5] and valve core shaft [4] rotating opening spool during unlatching, and as shown in Figure 2, left elevator [9] discharges wire rope [3] simultaneously; Left side elevator [9] work gets final product when closing.

Claims

1, a kind of winding type high torque (HT) macrotype butterfly valve, comprise valve body [1] and spool [5], spool [5] is fixed in valve body [1] inner chamber by rotating shaft [4], it is characterized in that it also comprises a spool start-stop device, this device is made up of left and right sides elevator [9,8] and left and right sides leading block [2,7], left and right sides elevator [9,8] is separately fixed at outside the valve body [1] of spool [5] both sides, and its rotating shaft is parallel with valve core shaft [4]; Wire rope on the elevator of the left and right sides [3,6] is separately fixed at spool [5] both sides, and left and right sides leading block [2,7] is separately fixed at spool [5] both sides and wire rope is vertically passed through valve body.

2, butterfly valve according to claim 1 is characterized in that described wire rope [3,6] is fixed on spool [5] the radius outer end vertical with valve core shaft [4].