CN211563929U

CN211563929U - Purging device

Info

Publication number: CN211563929U
Application number: CN201921993699.0U
Authority: CN
Inventors: 王云刚; 郭荣涛; 秦政平
Original assignee: Changzhou Changjiang Thermal Energy Co ltd
Current assignee: Changzhou Changjiang Thermal Energy Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-09-25
Anticipated expiration: 2029-11-18

Abstract

The utility model provides a purging device, purging device includes the direction subassembly, tube head subassembly and power component, the direction subassembly includes the guide bar and sets up the catch bar in the guide bar, it has the guide way to open on the guide bar, the tube head subassembly establishes the gas circuit sleeve on the guide bar including relative slip ground cover, slidable ground cover establishes sliding sleeve and fixed connection gas circuit sleeve and sliding sleeve's stopper on the catch bar, be provided with a plurality of mouths of pipe and the mouth of pipe of admitting air of giving vent to anger on the gas circuit sleeve, the mouth of pipe of admitting air communicates to gas supply system through the hose, stopper slidable sets up in the guide way, power component can order about gas circuit sleeve reciprocating motion on the guide bar after starting. When using the gas circuit sleeve to sweep the branch pipe inner wall, power component orders about the gas circuit sleeve and removes along the guide bar, can realize sweeping the removal of branch pipe to the assurance is the same to the thrust of the impurity of branch pipe each department pipe wall, improves the efficiency of sweeping impurity.

Description

Purging device

Technical Field

The utility model relates to a pipeline sweeps technical field, especially relates to a sweep device.

Background

In the long-term operation's of boiler in-process, contain partial impurity in the aqueous ammonia that the denitration was used, impurity deposits in the pipeline of spouting ammonia denitration, cause the branch pipe to block up, lead to spouting the ammonia inhomogeneous, seriously influence the denitration effect, consequently, in the in-process of spouting ammonia denitration, operating personnel often can select intermittent type nature to shut down, when shutting down, utilize compressed air to sweep the pipeline, will block up in the impurity blows into the denitration tower, and in above-mentioned process, because the branch pipe of spouting ammonia is longer, compressed air thrust descends when reaching the branch pipe end, can not push out the impurity in the branch pipe of spouting ammonia completely, finally lead to impurity to pile up in the exit that spouts ammonia branch pipe and grid contact completely, influence the denitration efficiency of denitration tower.

SUMMERY OF THE UTILITY MODEL

The utility model provides a can prevent that ammonia impurity from piling up the device that sweeps in spouting ammonia branch pipe and grid contact position.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a purging device, is used for the branch pipe, purging device includes the direction subassembly, sets up tube head subassembly in the direction subassembly and orders about the tube head subassembly is followed direction subassembly reciprocating motion's power component, the direction subassembly is including fixed setting up guide bar and the fixed catch bar that sets up in the guide bar in the branch pipe, it has the guide way to open on the guide bar, the tube head subassembly includes that relative slip ground cover is established gas circuit sleeve, slidable cover on the guide bar are established slip sleeve and fixed connection on the catch bar gas circuit sleeve with slip sleeve's stopper, the gas circuit sleeve is the cavity structure, be provided with a plurality of mouths of pipe and the mouth of pipe of admitting air on the gas circuit sleeve, the mouth of pipe of admitting air with the mouth of admitting air all communicates in the inner chamber of gas circuit sleeve, the mouth of admitting air corresponds the inner wall setting of branch pipe, the air inlet pipe orifice is communicated to an air supply system through a hose, the limiting block is slidably arranged in the guide groove, the power assembly is fixedly connected to the sliding sleeve, and the air channel sleeve can be driven to reciprocate on the guide rod after the power assembly is started.

Furthermore, the end part of the push rod is matched with a linkage screw in a penetrating mode, and the tube head assembly moves synchronously along with the push rod under the limitation of the linkage screw.

Further, the outer diameter of the sliding sleeve is smaller than the cross-sectional size of the screw head of the linkage screw.

Furthermore, the limiting block is fixedly connected with the inner wall of the gas path sleeve and the outer wall of the sliding sleeve.

Furthermore, the end face of the guide rod is provided with a guide hole, the guide hole is arranged along the axial lead of the guide rod, and the sliding sleeve, the piston shaft, the push rod and the linkage screw are all arranged in the guide hole.

Further, the power assembly comprises a control cylinder, and a piston shaft of the control cylinder is fixedly connected to the push rod.

Further, the length of the piston shaft is greater than the groove length of the guide groove.

Further, the cylinder body of the control cylinder is arranged outside the branch pipe.

Furthermore, the air outlet pipe orifice points to the inner wall of the branch pipe along the radial direction of the air path sleeve.

The beneficial effects of the utility model are that, the air current sweeps to the inner wall of branch pipe through the gas circuit sleeve on, simultaneously, the gas circuit sleeve is reciprocating motion in the branch pipe again under power component's promotion, when sweeping the ammonia impurity in the branch pipe promptly, can guarantee to sweep the time, the compressed air thrust of all positions in the branch pipe is unanimous all the time, the gas circuit sleeve can see through the export discharge on the grid with all impurity in the branch pipe at the in-process that removes.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a perspective view of the purging device of the present invention applied to a branch pipe;

FIG. 2 is a perspective view of the purge device shown in FIG. 1;

FIG. 3 is an exploded view (with a cutaway perspective view of the tube assembly) of the purge device of FIG. 2;

in the figure:

branch 200 guide assembly 10 of purging device 100

Tip assembly 20 power assembly 30 guide rod 110

The push rod 120 guides the hole 111 and the guide groove 112

Linkage screw 121 air passage sleeve 210 sliding sleeve 220

Air inlet pipe orifice 212 of air path disk 211 of limiting block 230

Air outlet pipe mouth 213 controls cylinder 310 cylinder body 311

Piston shaft 312

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

As shown in fig. 1 to 3, the present invention provides a purging device 100 for a branch pipe 200 for nitrogen spraying and denitration, wherein the purging device 100 comprises a guiding assembly 10 disposed in the branch pipe 200, a pipe head assembly 20 movably disposed in the guiding assembly 10, and a power assembly 30 for driving the pipe head assembly 20 to move on the guiding assembly 10. Under the power of power assembly 30, head assembly 20 moves along guide assembly 10, thereby purging impurities in branch pipe 200.

Preferably, the guide assembly 10 includes a guide rod 110 disposed in the branch pipe 200 and a push rod 120 relatively slidably inserted in the guide rod 110, a guide hole 111 is formed on one end surface of the guide rod 110, a guide groove 112 communicated with the guide hole 111 is further formed on the circumferential surface of the guide rod 110, and both the guide hole 111 and the guide groove 112 are disposed along the axial line of the guide rod 110. The push rod 120 is disposed along the axis of the guide hole 111, and one end of the push rod 120 is inserted with a linkage screw 121.

Preferably, the cartridge assembly 20 includes an air passage sleeve 210 disposed on the guide rod 110, a sliding sleeve 220 disposed on the push rod 120, and a stopper 230 fixedly connected between the air passage sleeve 210 and the sliding sleeve 220.

The air passage sleeve 210 is provided with an air passage disc 211 protruding radially outwards along the guide rod 110, and the air passage disc 211 is arranged at the end of the air passage sleeve 210 far away from the guide hole 111. The pipe wall of the gas path sleeve 210 is a cavity-shaped structure, the circumferential surface of the end part of the gas path sleeve 210 far away from the gas path disk 211 is fixedly provided with a gas inlet pipe orifice 212, the circumferential surface of the outer side of the gas path disk 211 is fixedly provided with a plurality of gas outlet pipe orifices 213, the gas inlet pipe orifices 212 and the gas outlet pipe orifices 213 are communicated into the inner cavity of the gas path sleeve 210, wherein the gas inlet pipe orifices 212 are communicated into a gas supply system (not shown) outside the branch pipes 200 through hoses, the gas outlet pipe orifices 213 are arranged in a way of pointing to the inner wall of the branch pipes 200, it can be understood that the gas supply system supplies compressed air into the inner cavity of the gas path sleeve 210, the compressed air in the gas path sleeve 210 is blown to the inner wall of.

The sliding sleeve 220 is slidably inserted into the guiding hole 111, the sliding sleeve 220 is disposed on the end of the pushing rod 120 close to the linkage screw 121, and the outer diameter of the sliding sleeve 220 is smaller than the cross-sectional dimension of the screw head of the linkage screw 121, it can be understood that after the linkage screw 121 is screwed into the pushing rod 120, the screw head of the linkage screw 121 can limit the sliding sleeve 220 to move synchronously with the pushing rod 120.

The stopper 230 is slidably inserted into the guide groove 112, the stopper 230 is disposed in the air passage sleeve 210, and the stopper 230 is fixedly connected to the inner wall of the air passage sleeve 210 and the outer wall of the sliding sleeve 220. It can be understood that the sliding sleeve 220 can slide in the guide groove 112 under the control of the push rod 120 and the linkage screw 121, and the sliding sleeve 220 drives the air channel sleeve 210 to move synchronously through the stop block 230.

Preferably, the power assembly 30 includes a control cylinder 310, a cylinder body 311 of the control cylinder 310 is disposed outside the branch pipe 200, the cylinder body 311 is also communicated to the air supply system, a piston shaft 312 of the control cylinder 310 is slidably inserted into the guide hole 111, the length of the piston shaft 312 that can extend out of the cylinder body 311 is greater than the groove length of the guide groove 112, the piston shaft 312 is fixedly connected to the push rod 120, and the outer diameter of the piston shaft 312 is greater than the outer diameter of the sliding sleeve 220, it can be understood that after the control cylinder 310 is started, the piston shaft 312 extends into the guide hole 111, the tube head assembly 20 is driven by the push rod 120 and the linkage screw 121 to move along the guide groove 112, so as to drive the air passage sleeve 210 to move along the guide groove 112.

When the purging device 100 is used for purging the supporting rod 200, the air supply system is started to inject compressed air into the inner cavity of the air path sleeve 210 through the hose and the air inlet pipe orifice 212 in sequence, at the same time, the control cylinder 310 is started, the compressed air in the air passage sleeve 210 is discharged through the air outlet pipe mouth 213 on the air passage disc 211, that is, the compressed air in the air path sleeve 210 can purge the inner wall of the branch pipe 200, after the control cylinder 310 is started, the piston shaft 312 on the control cylinder 310 extends into the guide hole 111, when the sliding sleeve 220 moves along the guiding hole 111 under the pushing of the piston rod 312 and the control cylinder 310 retracts, the sliding sleeve 220 is reset to the initial position under the driving of the linkage screw 121, in this way, the piston shaft 312 can drive the push rod 120 to slide back and forth in the guide hole 111, so that tip assembly 20 may perform a reciprocating moving purge of the inner wall of branch pipe 200 along guide hole 111.

In the process of purging the branch pipe 200, the pipe head 20 is controlled by the control cylinder 310 to reciprocate along the guide hole 111, so that reciprocating purging of the inner wall of the branch pipe 200 can be realized, and further, the purging force on the inner wall of the branch pipe 200 is always kept consistent until impurities in the branch pipe 200 are purged out of the grid, so that the impurities in the branch pipe 200 are prevented from being accumulated in the pipe orifice of the branch pipe 200.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A purging device for a branch pipe is characterized in that: the purging device comprises a guide assembly, a tube head assembly arranged in the guide assembly and a power assembly driving the tube head assembly to move along the guide assembly in a reciprocating manner, the guide assembly comprises a guide rod fixedly arranged in the branch tube and a push rod fixedly arranged in the guide rod, a guide groove is formed in the guide rod, the tube head assembly comprises a gas path sleeve, a sliding sleeve and a limit block, the sliding sleeve and the limit block are slidably arranged on the push rod, the gas path sleeve is in a cavity structure, a plurality of gas outlet pipes and gas inlet pipes are arranged on the gas path sleeve, the gas outlet pipes and the gas inlet pipes are all communicated with the inner cavity of the gas path sleeve, and the gas outlet pipes correspond to the inner wall of the branch tube, the air inlet pipe orifice is communicated to an air supply system through a hose, the limiting block is slidably arranged in the guide groove, the power assembly is fixedly connected to the sliding sleeve, and the air channel sleeve can be driven to reciprocate on the guide rod after the power assembly is started.

2. A purging device as claimed in claim 1, wherein: the end part of the push rod is matched with a linkage screw in a penetrating mode, and the tube head assembly moves synchronously along with the push rod under the limitation of the linkage screw.

3. A purging device as claimed in claim 2, wherein: the outer diameter of the sliding sleeve is smaller than the cross-sectional size of the screw head of the linkage screw.

4. A purging device as claimed in claim 3, wherein: the limiting block is fixedly connected with the inner wall of the gas path sleeve and the outer wall of the sliding sleeve.

5. A purging device as claimed in claim 4, wherein: the power assembly comprises a control cylinder, a piston shaft of the control cylinder is fixedly connected to the push rod, a guide hole is formed in the end face of the guide rod and is arranged along the axial lead of the guide rod, and the sliding sleeve, the piston shaft, the push rod and the linkage screw are arranged in the guide hole.

6. A purging device as claimed in claim 5, wherein: the length of the piston shaft is greater than the groove length of the guide groove.

7. A purging device as claimed in claim 5, wherein: and the cylinder body of the control cylinder is arranged outside the branch pipe.

8. A purging device as claimed in claim 1, wherein: the air outlet pipe orifice points to the inner wall of the branch pipe along the radial direction of the air path sleeve.