CN2212690Y

CN2212690Y - Sluice valve

Info

Publication number: CN2212690Y
Application number: CN 95233209
Authority: CN
Inventors: 刘汉英
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-02-22
Filing date: 1995-02-22
Publication date: 1995-11-15
Anticipated expiration: 2005-02-22

Abstract

The utility model relates to a gate valve particularly suitable for conveying a slurry-typed material, which comprises a valve body 2, a valve plate 3, a valve handle 6, the lifting support 5 of the valve plate and the lifting control device 8 of the valve plate. The utility model has the technical proposal that the inner cavity of the valve body 2 is fixedly provided with two wear-resistant elastic pipes 1, the end surfaces of which are in abutted. The combining seam of the end surfaces of the two wear-resistant elastic pipes 1 is positioned right below the valve plate 3. The inner cavity of the valve body 2 is fixedly provided with wear-resistant elastic pipes 1 in order to prevent the conveyed substance from contacting with a valve body 1. Thus the wear-resistant performance of the valve is improved, and the service life of the valve is prolonged.

Description

Sluice valve

The utility model relates to the gate valve that a kind of conveyance fluid is used, and particularly is applicable to the gate valve that slurry body is used.

At present, industrial and mining enterprise extensively adopt the various solid, powdery materials of phase flow pipeline hydraulic transportation, starch with the various slags of line transportation as metallurgy industry; Mining already utilizes line transportation raw ore, concentrate, mine tailing slurry; Power station line transportation lime-ash slurry; The colliery is then with line transportation fine coal slurry; Hydraulic department line transportation silt etc.Though the conveying of these slurries and general liquid are carried and are had points of resemblance,, self characteristics are also arranged in its course of conveying.This is because the slurry that is transferred is compared with general liquid, than great, thickness, and many solid matters that suspend, therefore, these slurries have extremely strong abrasion to its pipe-line system in being transferred process.Because the present ore pulp valve that uses, because of wear-resisting poor, working life is all shorter, in case damaged by abrasion, keeps in repair and changes valve and all compare difficulty, and often because of the maintenance stop work and production of valve, give to produce normally to cause damage.

The purpose of this utility model is in order to provide a kind of wear resistance good, simple in structure liquid carrying valve, particularly to be applicable to the gate valve of carrying various slurries.

The utility model is to realize like this, it by valve body, be installed in valve plate in the valve body sluice gate, be fixed on the valve plate lifting support on the valve body, the valve rod that is fixedly mounted on the valve plate adopts traditional structural type, the apparatus for controlling of lifting of valve plate is installed on the valve plate lifting support, its technological points is: the wear-resisting spring tube that is installed with two sections end face butt joints in the inner chamber of valve body, the end face bonding crack of two sections wear-resisting spring tubes with at the right opposite of valve plate, so just constituted this gate valve.The working principle of this gate valve is: valve plate moving up and down or by apparatus for controlling of lifting by control valve rod realize, when if this gate valve need be closed, its valve plate is under the effect of apparatus for controlling of lifting, move down, when valve plate moves to the bonding crack of two wear-resisting spring tubes, under the effect of valve plate, make two sections wear-resisting spring tubes produce axial deformation by its bonding crack, valve plate then enters between two sections wear-resisting spring tubes, and the pipeline lock is disconnected.If when opening this gate valve, valve plate is moved under the effect of apparatus for controlling of lifting, valve plate is withdrawed from from two wear-resisting spring tube junctions, two wear-resisting spring tubes then contact automatically in the effect lower end surface of self elastic force, form the pipeline of sealing.The apparatus for controlling of lifting of the said valve plate of the utility model can be manual device, also can be Electric actuator, can also be hydraulic pressure, air control unit.

Because the utility model is two sections wear-resisting spring tubes to be installed as liner at the valve body internal fixation, has avoided contacting of the material that is transferred and metal valve body effectively, thereby prevented the abrasion of transported material confrontation valve body, the working life of having improved valve body effectively.Secondly, the valve plate of this gate valve inlet is the end face bonding crack of two sections wear-resisting spring tubes, avoids the abrasion to the valve body place of valve plate and valve plate correspondence of the material that is transferred equally effectively, the working life that also can improve this valve.Moreover this wear-resisting spring tube manufactures Changable type, in case be worn, then changes in time, can improve the working life of this valve equally.

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is a structure principle chart of the present utility model;

Fig. 2 is that the valve plate apparatus for controlling of lifting is a kind of embodiment of manual control mechanism;

Fig. 3 is that the valve plate apparatus for controlling of lifting is a kind of embodiment of tooth bar control mechanism;

Fig. 4 is that the valve plate apparatus for controlling of lifting is electric control mechanism and a kind of embodiment;

Fig. 5 is that the valve plate control gear is a kind of embodiment of hydraulic control;

Fig. 6 is that the valve plate apparatus for controlling of lifting is a kind of embodiment of pneumatic control mechanism.

With reference to accompanying drawing 1, valve body of the present utility model is traditional structural type, and its two ends have adpting flange, and valve body 2 can be an integrated type, also can be to be formed by fixedly connecting by left and right sides two-part.Be installed with valve plate lifting support 5 in the upper end of valve body 2, in the middle of valve plate lifting support 5 valve plate 3 be installed, the upper end of valve plate 3 is installed with valve rod 6, and the top of valve rod 6 is connected with valve plate apparatus for controlling of lifting 8.In order to reduce the frictional force between valve plate apparatus for controlling of lifting 8 and the valve plate lifting support 5, between valve plate lifting support 5 and valve plate apparatus for controlling of lifting 8, bearing means 7 is installed.In order to improve the wear-resisting property of this valve, the end face bonding crack that is installed with 1, two section wear-resisting spring tube 1 of two sections wear-resisting spring tubes in the inner chamber of valve body 2 is under valve plate 3, so that valve plate 3 is inserted in the valve body 2 by this bonding crack.Wear-resisting spring tube 1 is generally by the rubber manufacturing, and its wear resistance exceeds more than 4 times of metal valve body 2, and the end face of two sections wear-resisting spring tubes 1 connects in conjunction with should be interference, certain elastic pressure is promptly arranged, in case the material that is transferred leaks from this bonding crack.For the frictional force between the end face that reduces the wear-resisting spring tube 1 in valve plate 3 and two ends, on the sluice gate end face of valve body 2, be provided with lubricated runner 4, so that be coated with lubricant oil for the both sides of valve plate 3.The valve plate apparatus for controlling of lifting 8 of this gate valve can adopt multiple structural type.With reference to accompanying drawing 1, thread spindle is processed on the top of the valve rod 6 of this gate and valve, and a rotating disk with threaded hole is installed on it, and this rotating disk is by motor and manually can both control its rotation, by the rotation of rotating disk, drives its valve rod 6 and valve plate 3 and moves up and down.With reference to accompanying drawing 2, this valve plate apparatus for controlling of lifting 8 is a manual control mechanism, be valve rod 6 on be processed into thread spindle, the rotating disk that center hole is a tapped hole is installed on this thread spindle, can directly control this rotating disk with hand, also can and turn handle control dial rotation, to reach the purpose of valve plate 3 liftings by a control gear.With reference to accompanying drawing 3, this valve plate apparatus for controlling of lifting 8 also can be the tooth bar control mechanism, tooth bar is processed on the top that is valve rod 6, this tooth bar is controlled by the gear and the Joystick that are positioned on the valve plate lifting support 5, to reach the purpose of control valve plate 3 liftings, with reference to accompanying drawing 4, this valve plate apparatus for controlling of lifting 8 is directly controlled by motor, basic identical among its control principle and Fig. 1, the manual control part of only having economized ground not.With reference to accompanying drawing 5,6, this valve plate apparatus for controlling of lifting can be hydraulic pressure, pneumatic control, and promptly at oil hydraulic cylinder of the upper end of valve plate lifting support 5 fixed installation or cylinder, its piston rod is fixedlyed connected with valve rod 6 and got final product.If adopt oil hydraulic cylinder, can on valve body 2, fixedly mount a hydraulic hand-pump, be used for controlling the action of oil hydraulic cylinder.

Claims

1, a kind of Sluice valve, it comprises valve body (2), valve plate (3), valve rod (6), valve plate lifting support (5) and valve plate apparatus for controlling of lifting (8), it is characterized in that: in the inner chamber of valve body (2), be installed with the wear-resisting spring tube (1) of two sections end faces butt joint, the end face bonding crack of two sections wear-resisting spring tubes (1) be combined in valve plate (3) under.

2, a kind of Sluice valve according to claim 1 is characterized in that: be provided with lubricated runner (4) on the sluice gate end face of valve body (2).

3, a kind of Sluice valve according to claim 1 and 2, it is characterized in that: the structural type of valve plate apparatus for controlling of lifting (8) is that the top of valve rod (6) is thread spindle, the rotating disk that on this thread spindle a center hole to be installed be tapped hole constitutes, and between valve plate apparatus for controlling of lifting (8) and valve plate lifting support (5) bearing means (7) is installed.

4, a kind of Sluice valve according to claim 3 is characterized in that: go up motor that drives dial rotation of fixed installation at valve plate lifting support (5).

5, a kind of Sluice valve according to claim 1 and 2, it is characterized in that: the structure of valve plate apparatus for controlling of lifting (8) is for going up oil hydraulic cylinder of fixed installation or pneumatic linear actuator at valve plate lifting support (5), the front end of its piston rod is fixedlyed connected with the upper end of valve rod (6).

6, a kind of Sluice valve according to claim 1 and 2, it is characterized in that: the structure of valve plate apparatus for controlling of lifting (8) is that the top of valve rod (6) is tooth bar, is installed with the gear that is meshed with this tooth bar in the upper end of valve plate lifting support (5) and controls the handle that this gear rotates.