CN2289783Y

CN2289783Y - Nagative pressure recoil type resin requet organ

Info

Publication number: CN2289783Y
Application number: CN97209214U
Authority: CN
Inventors: 杨崇豪
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-02
Filing date: 1997-01-02
Publication date: 1998-09-02
Anticipated expiration: 2007-01-02

Abstract

The utility model relates to a negative pressure recoil type resin catcher, comprising support pipes whose pipe cavities are provided with sieve pipes and zooming pipes arranged at the two ends of the support pipes. The negative pressure recoil type resin catcher is characterized in that at least two support pipes are arranged between the two zooming pipes. Each support pipe is provided with a cut-off valve and a squirrel-cage type sieve pipe, and the pipe walls of the support pipes at the position of the sieve pipes are provided with dirt discharge pipe openings. The utility model has the advantage that the negative pressure recoil type resin catcher realizes the self-cleanness of a system under the state of no conveying stop, and the deficiency of the prior art that the system needs to stop conveying periodically to dismount and clean is overcome. The running safety of the devices is improved, and the service life of the system is prolonged.

Description

Negative pressure backpulsing resin catcher

The utility model relates to a kind of water treatment device, relates to a kind of matching used negative pressure backpulsing of ion-exchanger resin catcher that is specifically.

Resin catcher is mounted in and is used on the ion-exchanger water outlet to prevent that the exchanger water device from breaking down and a kind of device of the resin leakage that causes, this device also can be used to the broken resin that dams, to ensure the safe operation of boiler systems, this device is widely used in industries such as electric power, petrochemical industry.The resin catcher of prior art is because of due to its structure; have the following disadvantages: after equipment moves for some time more; regular meeting has to equipment is stopped transport because of the obstruction at the broken end of resin, after the stoppage in transit, opens wash water valve and adopts the artificial method that the broken end of the resin that captures is cleaned out.Also the screen casing in the catcher must be drawn off in case of necessity, with the broken end of resin in the steel brush cleaning embedding screen pipe opening.It is particularly serious and frequent that above-mentioned this phenomenon takes place in the resin catcher of the condensed water precision processing high flow rate mixed bed of subcritical, supercritical generating unit.The uptime that this has just not only shortened equipment influences the raising of production efficiency, and also the safety of the unit equipment of regular meeting's crisis has also increased labor intensity of operating personnel simultaneously.

The purpose of this utility model just is to overcome above-mentioned weak point of the prior art and provides a kind of under the state that runs without interruption, the negative pressure recoil or the resin catcher that can clean self

The purpose of this utility model can adopt following measure to realize:

The utility model comprises the arm that is provided with screen casing in the tube chamber and is installed in the convergent-divergent pipe at arm two ends, between described two convergent-divergent pipes, be provided with two arms at least, one shut off valve and a squirrel-cage screen casing all are housed on the every arm, and the branch pipe wall of screen casing position is provided with end-of-the-pipe.

The squirrel-cage screen casing that is adopted that is adopted in the utility model is to be that trapezoid keel and the cross section that evenly is coiled on the keel are made for the trapezoid wrapping wire by uniform cross section; Screen material can adopt the Stainless Steel material to make, and also can adopt other suitable material to make.

Catcher of the present utility model can be provided with three or four arms according to actual needs between described two convergent-divergent pipes.

Principle of work of the present utility model and advantage thereof are as follows:

The fluid medium of handling through ion-exchanger is divided into some (by the number decisions of arm) via the convergent-divergent pipe, hold back after the resistance shelves of the solid-phase resin in the fluid (or the broken end of resin) screen casing of putting in arm, the filtration, liquid phase fluid then enters system by screen pipe opening.(maybe when operation reaches setting cycle) can be by being arranged on this arm of valve closes (operation as usual of other arm this moment) on this arm during greater than certain value for inside and outside differential pressure when a certain arm in service, open the sewage draining exit on this arm then, fluid in this pipe is discharged, make and produce negative pressure in the tube chamber, under the effect of negative pressure, use the aqueous reflux reverse jetting in the inner chamber of screen casing, the broken end of resin that is trapped in the screen pipe opening is discharged from screen pipe opening, after cleaning out, close sewage draining exit, open the valve on this arm, ear can make it recover normal operation.

Why screen casing of the present utility model adopts the cross section to make for the trapezoid material, its objective is make screen casing the slit form V font structure, the scouring intensity when improving recoil.

Advantage of the present utility model is not self cleaning under the shut down condition of feasible system, overcome need in the prior art regularly to stop transport, the weak point of dismounting cleaning, and security that can the operation of raising equipment prolongs system work-ing life.

The drawing of accompanying drawing is described as follows:

Fig. 1 is a front view of the present utility model.

Fig. 2 is the A-A sectional view of squirrel-cage screen casing among Fig. 1.

Fig. 3 is the axial sectional view of squirrel-cage screen casing.

The utility model is done with detailed description below with reference to embodiment (accompanying drawing):

As shown in Figure 1, the utility model comprises arm 2 that is provided with screen casing 4 in the tube chamber and the convergent-divergent pipe 1 that is installed in arm 2 two ends, between described two convergent-divergent pipes 1, be provided with two arms 2, one shut off valve 3 and a squirrel-cage screen casing 4 all are housed on the every arm 2, and the branch pipe wall of screen casing position is provided with end-of-the-pipe 5.

The squirrel-cage screen casing 4 that is adopted (shown in Fig. 2,3) that is adopted in the utility model is to be that trapezoid keel 6 and the cross section that evenly is coiled on the keel 6 are that trapezoid wrapping wire 7 is made by uniform cross section; Screen material can adopt the Stainless Steel material to make, and also can adopt other suitable material to make.

Claims

1, a kind of negative pressure backpulsing resin catcher, it comprises the arm (2) that is provided with screen casing (4) in the tube chamber and is installed in the convergent-divergent pipe (1) at arm (2) two ends, it is characterized in that: between described two convergent-divergent pipes (1), be provided with two arms (2) at least, one shut off valve (3) and a squirrel-cage screen casing (4) all are housed on the every arm, and the branch pipe wall of screen casing (4) position is provided with end-of-the-pipe (5).

2, negative pressure backpulsing resin catcher according to claim 1 is characterized in that: described squirrel-cage screen casing (4) is to be that trapezoid keel (6) and the cross section that evenly is coiled on the keel (6) are that trapezoid wrapping wire (7) is made by uniform cross section.