CN2416295Y

CN2416295Y - Enamel glass all-sealing discharge valve

Info

Publication number: CN2416295Y
Application number: CN 00216472
Authority: CN
Inventors: 周通; 邹荣燊
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-14
Filing date: 2000-02-14
Publication date: 2001-01-24
Anticipated expiration: 2010-02-14

Abstract

The utility model relates to an enamel glass all-sealing discharge valve, which comprises a valve body (11), a valve core (14), a valve rod (12) and a valve rod axial movement device, wherein, the upper part of the valve body (11) is provided with a discharge inlet (18), and the lateral part of the valve body (11) is provided with a declivitous discharge inlet (19), and furthermore, the lower part of the valve body (11) is provided with a valve rod moving cavity body which is used for the longitudinal motion of the valve rod (12). The utility model is characterized in that a waveness sleeve (10) is sheathed with the valve rod (12), and the upper end part of the waveness sleeve (10) is connected with the upper part of the valve rod (12) in a sealing way, and furthermore, the lower end part of the waveness sleeve (10) is connected with the valve body (11) in a sealing way. The utility model has the advantages that the utility model changes dynamic sealing to static sealing and enhances reliability and security during operation.

Description

The hermetically sealed discharging valve of Glassed Steel

The utility model relates to the discharging valve that use pressure vessels for the chemical industry such as a kind of reactor bottom.

In the prior art, the Glassed Steel discharging valve, comprise valve body, be arranged at the spool in the described valve body, the valve rod that is connected with described spool, the valve rod axial moving device that is connected with described valve rod, the top of described valve body is provided with the blowing inlet, the sidepiece of described valve body is provided with downward-sloping blowing outlet, the bottom of described valve body is provided with the stem movement cavity that is used for the valve rod longitudinal movement, described valve rod is arranged in the valve pocket inner chamber of described valve body, the inwall of described valve pocket scribbles glass-lined coating, and the outer wall of described valve rod and the outer wall of described spool also scribble glass-lined coating.Valve rod is used to drive described spool and vertically moves, so that spool opens or closes described blowing inlet.Be provided with filler between the bottom of described valve rod and the valve body lower portion, make motive sealing between described valve rod and the described valve body lower portion to prevent that described valve rod from producing the liquid leakage in the valve pocket when longitudinal movement.But described stem surface scribbles glass-lined coating and is used for corrosion-resistantly, and therefore being coated with technology and can not making the glass-lined coating surfacing of glass-lined coating can make the movable sealing structure between valve rod and the filler reveal.

The purpose of this utility model is to provide between a kind of valve rod and the valve body lower portion wards off glass from hermetically sealed discharging valve for static seal.

The technical solution of the utility model is: the hermetically sealed discharging valve of a kind of Glassed Steel, comprise valve body, be arranged at the spool in the described valve body, the valve rod that is connected with described spool, the valve rod axial moving device that is connected with described valve rod, the top of described valve body is provided with the blowing inlet, the sidepiece of described valve body is provided with downward-sloping blowing outlet, the bottom of described valve body is provided with the stem movement cavity that is used for the valve rod longitudinal movement, described valve rod is arranged in the valve pocket inner chamber of described valve body, the inwall of described valve pocket scribbles glass-lined coating, and the outer wall of described valve rod and the outer wall of described spool also scribble glass-lined coating; Be with radiation fins on the described valve rod, the upper end portion of described radiation fins and the top of described valve rod are and are tightly connected, and the underpart of described radiation fins and described valve body are and are tightly connected.

The utility model compared with prior art has following advantage:

Because bellows can vertically be compressed, and the top of the upper end portion of bellows and valve rod is and is tightly connected, be tightly connected between the underpart of bellows and the bottom of valve body, therefore when the valve rod longitudinal movement, liquid in the valve pocket can not enter the surface of valve rod, can not enter the stem movement cavity downwards, this static seal structure has improved reliability and the Security of the utility model when operation.

The utility model will be further described below in conjunction with drawings and Examples:

Accompanying drawing is structure master's sectional view of the present utility model; Wherein:

[1], oil pocket cover; [2], handwheel; [3], screw mandrel; [4], nut; [5], guider screw; [6], bearing; [7], gland; [8], gasket seal; [9], filler; [10], radiation fins; [11], valve body; [12], valve rod; [13], gasket seal; [14], spool; [15], pad; [16], pad; [17], valve seat; [18], blowing inlet; [19], blowing outlet; [20], valve pocket;

Embodiment: referring to accompanying drawing, the hermetically sealed discharging valve of a kind of Glassed Steel, comprise valve body [11], be arranged at the spool [14] in the described valve body [11], the valve rod [12] that is connected with described spool [14], the valve rod axial moving device that is connected with described valve rod [12], the top of described valve body [11] is provided with blowing inlet [18], the sidepiece of described valve body [11] is provided with downward-sloping blowing outlet [19], the bottom of described valve body [11] is provided with the stem movement cavity that is used for valve rod [12] longitudinal movement, described valve rod [12] is arranged in valve pocket [20] inner chamber of described valve body [11], the inwall of described valve pocket [20] scribbles glass-lined coating, and the outer wall of the outer wall of described valve rod [12] and described spool [14] also scribbles glass-lined coating; Be with radiation fins [10] on the described valve rod [12], the top of the upper end portion of described radiation fins [10] and described valve rod [12] is and is tightly connected, and the underpart of described radiation fins [10] and described valve body [11] are and are tightly connected.The top of described valve body [11] is fixed with valve seat [17], the bottom of valve body [11] is fixed with bearing [6], described blowing inlet [18] is arranged on the described valve seat [17], described bearing is provided with the valve rod axial moving device in [6], the underpart of described radiation fins [10] be the flange plate-like and be clamped to described bearing [6] and described valve body [11] between, the upper end portion of described radiation fins [10] is clamped between described valve rod [12] and the described spool [14].

Be provided with gasket seal [8] between the flange plate upper surface of described radiation fins [10] lower end and the described valve body [11].

Be threaded between described spool [14] and the described valve rod [12], be provided with gasket seal [13] between the upper-end surface of described radiation fins [10] and the described spool [14].The bottom of described radiation fins [10] is provided with packing cavity [9], and this packing cavity [9] is positioned between the outer surface of the inwall of described radiation fins [10] and described valve rod [12], is filled with filler [9] in the described packing cavity [9].This filler [9] can be continued to seal by filler [9] after radiation fins [10] seal failure.

Be provided with screw mandrel [3] in the inner chamber that described valve rod axial moving device is described bearing [6], nut [4] on described screw mandrel [3] and the described bearing [6] screw-thread fit mutually connects, the upper end portion of described screw mandrel [3] is connected with the underpart of described valve rod [12], described screw mandrel [3] is connected with the power plant that are used for rotating nut [4], and the utility model is to be connected with handwheel [2].

Claims

1, the hermetically sealed discharging valve of a kind of Glassed Steel, comprise valve body [11], be arranged at the spool [14] in the described valve body [11], the valve rod [12] that is connected with described spool [14], the valve rod axial moving device that is connected with described valve rod [12], the top of described valve body [11] is provided with blowing inlet [18], the sidepiece of described valve body [11] is provided with downward-sloping blowing outlet [19], the bottom of described valve body [11] is provided with the stem movement cavity that is used for valve rod [12] longitudinal movement, described valve rod [12] is arranged in valve pocket [20] inner chamber of described valve body [11], the inwall of described valve pocket [20] scribbles glass-lined coating, and the outer wall of the outer wall of described valve rod [12] and described spool [14] also scribbles glass-lined coating; It is characterized in that: be with radiation fins [10] on the described valve rod [12], the top of the upper end portion of described radiation fins [10] and described valve rod [12] is and is tightly connected, and the underpart of described radiation fins [10] and described valve body [11] are and are tightly connected.

2, the hermetically sealed discharging valve of Glassed Steel according to claim 1, it is characterized in that: the top of described valve body [11] is fixed with valve seat [17], the bottom of valve body [11] is fixed with bearing [6], described blowing inlet [18] is arranged on the described valve seat [17], described bearing is provided with the valve rod axial moving device in [6], the underpart of described radiation fins [10] be the flange plate-like and be clamped to described bearing [6] and described valve body [11] between, the upper end portion of described radiation fins [10] is clamped between described valve rod [12] and the described spool [14].

3, the hermetically sealed discharging valve of Glassed Steel according to claim 2 is characterized in that: be provided with gasket seal [8] between the flange plate upper surface of described radiation fins [10] lower end and the described valve body [11].

4, the hermetically sealed discharging valve of Glassed Steel according to claim 2 is characterized in that: be threaded between described spool [14] and the described valve rod [12], be provided with gasket seal [13] between the upper-end surface of described radiation fins [10] and the described spool [14].

5, the hermetically sealed discharging valve of Glassed Steel according to claim 1, it is characterized in that: the bottom of described radiation fins [10] is provided with packing cavity [9], this packing cavity [9] is positioned between the outer surface of the inwall of described radiation fins [10] and described valve rod [12], is filled with filler [9] in the described packing cavity [9].

6, the hermetically sealed discharging valve of Glassed Steel according to claim 2, it is characterized in that: be provided with screw mandrel [3] in the inner chamber that described valve rod axial moving device is described bearing [6], nut [4] on described screw mandrel [3] and the described bearing [6] screw-thread fit mutually connects, the upper end portion of described screw mandrel [3] is connected with the underpart of described valve rod [12], and described screw mandrel [3] is connected with the power plant that are used for rotating nut [4].