CN2653233Y

CN2653233Y - Scale removing valve

Info

Publication number: CN2653233Y
Application number: CN 200320105076
Authority: CN
Inventors: 张克国; 刘凤霞
Original assignee: SHENYANG GREAT WALL HYDRAULIC MACHINERY MANUFACTURING Co Ltd
Current assignee: SHENYANG GREAT WALL HYDRAULIC MACHINERY MANUFACTURING Co Ltd
Priority date: 2003-10-30
Filing date: 2003-10-30
Publication date: 2004-11-03
Anticipated expiration: 2013-10-30

Abstract

A squama eliminating valve comprises a valve body, an upper valve cover, a lower valve cover, a water input pipe and a water output pipe. The key points of the utility model are that a controlling valve cavity is arranged on the upper part in the valve body and that a main valve cavity is arranged on the bottom in the valve body. The water input pipe and the water output pipe are fixedly connected with the out ends of a water input hole and a water output hole, a pilot-operated solenoid valve and a throttle valve are arranged on the upper valve cover. A guide ring is arranged on the bottom of the controlling valve cavity, and an upper sliding sleeve and a pilot-operated control piston are inserted in the controlling valve cavity; a valve base lies on an upper end base of a lower sliding sleeve and a sealing unit is embedded on the upper end face of the upper sliding sleeve. A spring is inserted in a valve core, and the lower end of the spring is pressed on the lower valve cover, meanwhile, a sealing unit is respectively arranged between the upper end brim of the upper sliding sleeve or the lower end brim of the lower sliding sleeve and the valve body, as well as between the piston and the upper sliding sleeve. Compared with the prior art, the utility model has the advantages of compact structure, high working pressure, quick reaction, long using time, etc.

Description

A kind of Scale removing valve

(1) technical field

The utility model relates to a kind of valve, particularly relates to a kind of steel rolling, rolls the Scale removing valve that the plate field is used.

(2) background technique

The regenerating oxidation iron sheet is the important procedure in the rolling process in the living iron scale of the stove of elimination steel slab surface and the operation of rolling, at present, adopt high pressure water to remove iron scale and in modern hot rolled steel production, developed rapidly, particularly on milling trains such as sheet material, tubing, bar, obtained extensive use.Require descaling system that higher hitting power is arranged owing to produce alloyed steel, thereby need to be equipped with the high-pressure water control valve at the hot-strip production line.High-pressure water descaling control valve commonly used at present.Complex structure, Sealing and valve pocket are easy to wear, and working life is short.

(3) summary of the invention

In order to solve the technical problem that above-mentioned prior art exists, the utility model provide a kind of simple in structure, rise close steadily, the non-damageable Scale removing valve of Sealing.

The technological scheme that adopts is:

A kind of Scale removing valve comprises valve body, bonnet, bottom flange, intake pipe, outlet pipe.Its structural feature is that the top in the valve body is provided with the control valve pocket, bottom in the valve body is provided with main valve chamber, and the bonnet buckle closure is at the upper end-hole place of control valve pocket, and by being bolted on the valve body, the bottom flange buckle closure is on the lower end mouth of main valve chamber, and by being bolted on the valve body.Valve body is provided with water inlet and osculum, and intake pipe and outlet pipe are fixedly connected on the water inlet of valve body and the external port place of osculum, are equiped with pilot solenoid valve and throttle valve on the bonnet.The bottom of control valve pocket is equiped with guide ring, and control valve pocket interpolation is equipped with upper sliding sleeve and guide's control piston, and the upper end base of low sleeve crouches a valve seat, and edge is provided with a Sealing on the upper-end surface of valve seat.Have on the sidewall of low sleeve one with valve body on water inlet and the water intake that is connected of the intake pipe that is connected with valve body, be fitted with a spring in the spool, the lower end roof pressure of this spring is respectively arranged with Sealing between the upper end-face edge of upper sliding sleeve and the lower edge of low sleeve and the valve body and between piston and the upper sliding sleeve on bottom flange.

Working principle

The electromagnet of magnet valve of conducting electricity in the ban get electric after, then control oil and enter first guide piston top, make first guide piston depress downwards that main valve plug---main valve plug is opened, at this moment the water inlet is connected with osculum, makes high pressure water by carrying out de-scaling.In the magnet valve electromagnet that conducts electricity in the ban when outage,, first guide piston top control oil is in the bottom, and main valve plug is got back to fuel tank because the acting in conjunction of high pressure water pressure and spring force presses when moving upward through selector valve, two individual event throttle valve, and the while main valve plug is closed.

The utility model has compared with prior art that compact structure, working pressure height, reflection are fast, long service life, working stability is reliable, contamination resistance is strong, advantage such as easy to maintenance.

(4) description of drawings

Fig. 1 is a kind of embodiment's of the utility model a structural representation.

(5) embodiment

A kind of Scale removing valve comprises valve body 1, spool 2, bonnet 3, bottom flange 4, intake pipe 5, outlet pipe 6.Its main points are that the top in the valve body 1 is provided with control valve pocket 7, bottom in the valve body 1 is provided with main valve chamber 8, and bonnet 3 buckle closures are at the upper end-hole place of control valve pocket 7, and by being bolted on the valve body 1, bottom flange 4 buckle closures are on the lower end mouth of main valve chamber 8, and by being bolted on the valve body 1.Valve body 1 is provided with water inlet 9 and osculum 10, and intake pipe 5 and outlet pipe 6 are fixed on the water inlet 9 of valve body 1 and the external port place of osculum 10 by pressing plate flange 11 and bolt 12 respectively, are equiped with pilot solenoid valve 13 and throttle valve 14 on the bonnet 3.Pilot solenoid valve 13 is the two-position four-way solenoid directional control valve.Throttle valve 14 is the overlapping Double throttle check valve.Be equiped with guide ring 15 below guide's control piston 17, be fitted with upper sliding sleeve 16 and guide's control piston 17 in the control valve pocket 7, be provided with T18 RunddichtringO 19 (import) between guide's control piston 17 and the upper sliding sleeve 16, general plug 23 is installed on the valve body 1 of guide ring 15 belows, be provided with T18 RunddichtringO 19 (import) between upper sliding sleeve 16 and the valve body 1, be equiped with O RunddichtringO 25 between the upper end of upper sliding sleeve 16 and the bonnet 3, be provided with low sleeve 18 in the main valve chamber 8, spool 2 is arranged in the low sleeve 18, the upper end base of low sleeve 18 crouches a valve seat 20, valve seat 20 is provided with and has a water intake that is connected with water inlet 9 on the valve body 1 on the sidewall of O RunddichtringO 21 low sleeves 18, the bottom of spool 2 is provided with a spring groove, be fitted with a spring 22 in the spring groove, the lower end roof pressure of this spring 22 is equiped with O RunddichtringO 24 between the edge of low sleeve 18 lower end mouth and the valve body 1 on bottom flange 4.

Claims

1, a kind of Scale removing valve, comprise valve body (1), spool (2), bonnet (3), bottom flange (4), intake pipe (5), outlet pipe (6), valve body (1) is provided with water inlet (9) and osculum (10), intake pipe (5) and outlet pipe (6) are fixedly connected on the water inlet (9) of valve body (1) and the external port place of osculum (10), it is characterized in that the top in the valve body (1) is provided with control valve pocket (7), bottom in the valve body (1) is provided with main valve chamber (8), bonnet (3) buckle closure is at the upper end-hole place of control valve pocket (7), and by being bolted on the valve body (1), bottom flange (4) buckle closure is on the lower end mouth of main valve chamber (8), and by being bolted on the valve body (1), be equiped with pilot solenoid valve (13) and throttle valve (14) on the bonnet (3), be equiped with guide ring (15) below guide's control piston (17), be fitted with upper sliding sleeve (16) and guide's control piston (17) in the control valve pocket (7), the upper end base of low sleeve (18) crouches a valve seat (20), edge is provided with a Sealing on the upper-end surface of valve seat (20), have on the sidewall of low sleeve (18) one with valve body (1) on water inlet (9) and the water intake that is connected of the intake pipe that is connected with valve body, be fitted with a spring (22) in the spool (2), the lower end roof pressure of this spring (22) is respectively arranged with Sealing between the lower edge of the upper end-face edge of upper sliding sleeve (16) and low sleeve (18) and the valve body (1) and between guide's control piston (17) and the upper sliding sleeve (16) on bottom flange (4).