CN2401755Y

CN2401755Y - Emptying guiding shower valve

Info

Publication number: CN2401755Y
Application number: CN 00226021
Authority: CN
Inventors: 马跃
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-10
Filing date: 2000-01-10
Publication date: 2000-10-18
Anticipated expiration: 2010-01-10

Abstract

The utility model relates to an emptying guiding shower valve which comprises a valve main body. The utility model is formed by that the outlet end of the valve main body is connected with a pipe cap through threaded connection, and a sealing pad is also arranged in the pipe cap. The utility model has the advantages of favorable sealing performance, high safety, convenient operation, small volume and low cost.

Description

The emptying showering guilding valve

The utility model relates to a kind of valve, i.e. the emptying showering guilding valve.

For a long time, be used for emptying on the pipeline and lead the valve that drenches purpose and do not obtain a kind of new design always, so can only adopt common General valve to replace.In the use, for they are installed, needing increases many piping elements, as pipe joint, pipe, flange, pad, bolt, nut etc., design, buying, installation and maintenance load and expense is increased greatly.Do not weigh so, because weld seam and tie point are many, the possibility of leakage is also big, and particularly the SOCKET WELDING valve easily produces the spool distortion in the erecting bed welding, thereby causes leakage, finally causes valve to reduce working life.In order to address this problem, abroad some company's specialized designs are produced a kind of emptying showering guilding valve door, though it also has some advantages, as installing and easy and simple to handle etc.Yet its existing problem also has: (1) entry end of valve on the structure has only the butt welding of lengthening valve body to form, and does not have flange arrangement, so limited using scope; (2) outlet end adopts plug.The thread seal of plug divides two kinds of dry seal (being packless seal) and packing seals.Dry seal is not add any material between screw thread, and only depending on combines closely between the screw thread reaches sealing, so its double thread requirement on machining accuracy is very high, thereby has increased processing charges, has improved cost; In addition, because corrosion, sealing surface is destroyed easily, produces and leaks.Packing seal adds materials such as teflon band exactly between screw thread, realize sealing, and there is following shortcoming in this method: (a) heatproof is lower, generally only is used for temperature less than 200 ℃ of operating modes; (b) withstand voltage low, generally be used for pressure less than the 1.6Mpa operating mode.Owing to these reasons, outlet end is that the valve of plug does not allow to be used for high temperature, high pressure, dangerous medium such as inflammable, explosive, poisonous.(c) valve types is few, has only gate valve a kind of.Just because of have the problems referred to above, so limited its using scope greatly.

The purpose of this utility model provides a kind of brand-new emptying showering guilding valve, to overcome the deficiency of above-mentioned emptying showering guilding valve door and common valve.It is good airproof performance, good reliability not only, and simple in structure, and cost is low, and using scope is wide.

This purpose realizes with following technical proposal: this emptying showering guilding valve, it comprises valve body (1), at the outlet end of valve body (1) pipe cap (2) that is threaded, also is provided with sealing gasket (3) in the pipe cap (2) and constitutes.

Characteristics of the present utility model are: 1, because the valve export end has adopted screw pipe cap also to be added with gasket construction within it, make that the whole valve body volume is little, cost is low, sealing is reliable, easy and simple to handle, it can satisfy under the dangerous medium occasions such as high temperature, high pressure and uses, and sealability reaches the blind flange sealing effect.2, except that the butt welding form of valve entrance end for the lengthening valve body, the entrance end of other valve is flange (or screw thread) linkage structure, this has just been avoided producing because of field welding the bad phenomenon of spool distortion, thereby has also got rid of the leakage that produces therefrom, the working life of having improved valve.If 3 adopt the butt welding form of the entrance point of valves for the lengthening valve body, then can be directly and main pipe weld, need not increase any other piping element, so reduced weld seam and tie point greatly, make the corresponding minimizing of possibility of leakage; From another viewpoint, workloads such as design, buying, installation are reduced the also corresponding minimizing of expense greatly.

Following accompanying drawing has provided embodiment of the present utility model:

Fig. 1 is the utility model embodiment one.

Fig. 2 is the utility model embodiment two.

Fig. 3 is the utility model embodiment three.

Can see from Fig. 1,2,3, the related valve body 1 of the utility model can be a various ways, for example the valve body among Fig. 11 is the gate and valve main body, valve body 1 among Fig. 2 is the Ball valve main body, valve body 1 among Fig. 3 is the shutoff valve main body, their entry end is respectively the butt welding of lengthening valve body, flange and worm structure form, and their outlet end all adopts pipe cap 2 and pad 3 and its screw connection structure form.The form structure of pipe cap 2 can be a various ways, as square head structure, hexagon head structure, also have Endless structure etc.

Claims

1, a kind of emptying showering guilding valve, it comprises valve body (1), it is characterized in that outlet end at valve body (1) pipe cap (2) that is threaded, and also is provided with sealing gasket (3) in the pipe cap (2) and constitutes.