CN2570553Y

CN2570553Y - Block-proof blowoff valve

Info

Publication number: CN2570553Y
Application number: CN 02269642
Authority: CN
Inventors: 马春元; 陈莲芳; 郝晓文; 衣宝葵; 刘军
Original assignee: Shandong University
Current assignee: Shandong University
Priority date: 2002-09-17
Filing date: 2002-09-17
Publication date: 2003-09-03
Anticipated expiration: 2012-09-17

Abstract

The utility model belongs to the conveying field of industrial pipelines, and particularly relates to a block-proof blowoff valve. The utility model is provided with a valve core and a valve seat at the connecting part of through pipes and the utility model, and thus, the utility model effectively avoids the blocking phenomenon frequently existing in common blowoff valves. The utility model has the advantage of simple structure, stable operation, low cost and low operation cost. The utility model can be widely used for industrial pipelines.

Description

Anti-blocking blowdown valve

1. technical field

The utility model belongs to the industrial pipeline transportation art, particularly relates to a kind of anti-plugging blowdown valve.

2. background technique

The normal blowdown valve of installing in the liquid line of band impurity or the lime-ash slurry pipeline, but include blind pipe in the structure of the blowdown valve of installing usually, like this even without opening valve, solid matter in the pipeline is also still understood the inflow blind pipe of nature, accumulating over a long period makes and carries out blowdown even open valve later by long-pending full solid matter in the blind pipe because blind pipe is blocked, long-pending real, deposit wherein also is difficult to discharge through discharge tube, thereby has caused the obstruction of blowdown valve.

3. summary of the invention

The purpose of this utility model is exactly in order to overcome above-mentioned the deficiencies in the prior art, and a kind of a kind of novel anti-blocking blowdown valve that can effectively avoid the solid matter sedimentation to stop up is provided.

The utility model is realized in the following manner:

Anti-blocking blowdown valve, comprise straight-through tube, sewage draining exit, valve body, valve cover, handle, drain pipe, valve body one end is fixedlyed connected with straight-through tube, it is characterized in that: further comprising spool, valve seat, valve seat is positioned at straight-through tube and is fixed on the inwall of valve body lower end, and handle is positioned at the top of valve cover, spool is fixed on the bottom of handle, spool can move up and down with handle, and handle and valve cover are by being threaded, and sewage draining exit is positioned at side of valve body.

Above-mentioned anti-blocking blowdown valve is characterized in that valve seat is a cirque structure, is used for the valve cover of closing valve to be positioned at the end of valve body near handle.

Valve body of the present utility model is being equipped with spool and valve seat with the straight-through tube connecting place, thus the blocking phenomenon of effectively having avoided common blowdown valve often to occur.

4. description of drawings

Fig. 1 is an appearance structure schematic representation of the present utility model.

Fig. 2 for Fig. 1 when the valve closing A to sectional drawing.

Fig. 3 for Fig. 1 when the valve opening A to sectional drawing.

Among the figure: the 1-straight-through tube, the 2-sewage draining exit, the 3-valve body, the 4-valve cover, the 5-handle, the 6-drain pipe, the 7-spool,

The 8-valve seat.

5. embodiment

Below in conjunction with accompanying drawing the utility model is provided a most preferred embodiment:

Anti-blocking blowdown valve, 1 welding of valve body 3 one ends and straight-through tube is equipped with circular shape valve seat 8 pressing close to straight-through tube 1 place, and it is welded on the inwall of valve body 3 lower ends, and handle 5 is positioned at the top of valve cover 4, and spool 7 is fixed on the bottom of handle 5, can move up and down with handle 5; The other end of valve body 3 is with valve cover 4 sealings, and handle 5 and valve cover 4 are by being threaded; 2 sides that are welded on valve body 3 of sewage draining exit.

When this anti-blocking blowdown valve was in closed condition, as shown in Figure 2, spool 7 directly reached the inwall of straight-through tube 1, and abutted against together with valve seat 8, so just can not have the blind area, thereby, also just avoided the deposition even the obstruction of solid matter in the blind pipe.And spool 7 is concordant with the inwall of straight-through tube 1 with valve seat 8, makes blowdown unobstructed.

When turning on handle 5 and make this blowdown valve be in opening state, as shown in Figure 3, the liquid of band impurity or lime-ash slurry are discharged by horizontal sewage draining exit 2 after will changeing 90 ° by drain pipe 6 in the straight-through tube 1, can not produce common blowdown valve phenomenon of blocking, thereby blowdown are able to smooth realization.

Claims

1. anti-blocking blowdown valve, comprise straight-through tube (1), sewage draining exit (2), valve body (3), valve cover (4), handle (5), drain pipe (6), valve body (3) one ends are fixedlyed connected with straight-through tube (1), it is characterized in that: further comprising spool (7) and valve seat (8), valve seat (8) is positioned at straight-through tube (1) and is fixed on the inwall of valve body (3) lower end, handle (5) is positioned at the top of valve cover (4), spool (7) is fixed on the bottom of handle (5), spool (7) can move up and down with handle (5), handle (5) and valve cover (4) are by being threaded, and sewage draining exit (2) is positioned at the side of valve body (3).

2. according to claim 1 described anti-blocking blowdown valve, it is characterized in that valve seat (8) is a cirque structure.