CN218049454U

CN218049454U - Clear stifled system of ash conveying storehouse pump balance pipe

Info

Publication number: CN218049454U
Application number: CN202222038003.7U
Authority: CN
Inventors: 李聪; 李建坡; 王怡
Original assignee: Guangdong Datang International Leizhou Power Generation Co Ltd
Current assignee: Guangdong Datang International Leizhou Power Generation Co Ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-12-16
Anticipated expiration: 2032-08-04

Abstract

A blockage clearing system for a balance pipeline of an ash conveying bin pump. At present, a traditional pneumatic ash conveying system is provided with a blockage clearing system for an ash conveying pipeline, automatic ash cleaning can be achieved, but the ash cleaning system is not arranged for a balance pipeline, and once the ash blockage occurs to the balance pipeline, accumulated ash in an ash hopper can not normally fall into a bin pump and is conveyed to an ash warehouse. The utility model discloses the constitution includes: the automatic feeding device comprises an ash bucket (7) and a bin pump (8), wherein a blanking pipe (9) and a balance pipe (10) are communicated between the ash bucket and the bin pump, and a manual blanking valve (1) and a pneumatic blanking valve (2) are installed on the blanking pipe; the balance pipe is communicated with the air supply pipe (6), and the air supply pipe is provided with a balance pipe blockage clearing valve (5). The utility model is used for the clear stifled of ash conveying storehouse pump balance pipeline.

Description

Clear stifled system of ash conveying storehouse pump balance pipe

The technical field is as follows:

the utility model relates to a clear stifled system of ash conveying storehouse pump balance pipeline.

Background art:

as an important system of a large coal-fired power plant, the balance pipe of an ash conveying system is easy to block ash in actual operation, the normal operation of the ash conveying system is not facilitated, if an ash bucket cannot convey ash normally for a long time, dust removal equipment can be damaged, a boiler is forced to stop operation, the collapse of the ash bucket can be caused even in serious conditions, and the safety of equipment and personnel is seriously threatened.

At present, a traditional pneumatic ash conveying system is provided with a blockage clearing system for an ash conveying pipeline, automatic ash removal can be achieved, however, the ash removal system is not arranged for a balance pipeline, and if the balance pipeline is blocked once, accumulated ash in an ash hopper cannot normally fall into a bin pump and is conveyed to an ash warehouse.

The utility model has the following contents:

the utility model aims at providing a clear stifled system of ash conveying storehouse pump balance pipeline.

The above purpose is realized by the following technical scheme:

a clear stifled system of ash conveying storehouse pump balance pipe, its constitution includes: the device comprises an ash hopper and a bin pump, wherein a blanking pipe and a balance pipe are communicated between the ash hopper and the bin pump, and the blanking pipe is provided with a blanking manual valve and a blanking pneumatic valve;

the balance pipe is communicated with the air supply pipe, and the air supply pipe is provided with a balance pipe blockage removing valve.

The ash conveying bin pump balance pipeline blockage clearing system is characterized in that a pressure transmitter is mounted on a balance pipe.

The ash conveying bin pump balance pipeline blockage clearing system is characterized in that a balance valve is mounted on a balance pipe.

Has the advantages that:

1. the utility model is provided with a pressure transmitter on the balance pipe to monitor the pressure of the balance pipe in real time; the upper part of the original balance valve is additionally provided with the air supply pipe, so that the pressure of the balance pipe can be monitored in real time, a criterion is provided for judging whether the balance pipe is blocked, program-controlled blockage removal can be automatically carried out when the balance pipe is blocked, the risk of pipe blockage is reduced, and the normal operation of the ash conveying system is ensured.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

in the figure: 1. a blanking manual valve; 2. a blanking pneumatic valve; 3. a balancing valve; 4. a pressure transmitter; 5. a balance pipe block removal valve; 6. a gas supply pipe; 7. an ash hopper; 8. a bin pump; 9. a blanking pipe; 10. and a balance tube.

The specific implementation mode is as follows:

referring to fig. 1, a blockage removing system for a balance pipeline of an ash conveying bin pump comprises: the automatic feeding device comprises an ash bucket 7 and a bin pump 8, wherein a blanking pipe 9 and a balance pipe 10 are communicated between the ash bucket and the bin pump, and a manual blanking valve 1 and a pneumatic blanking valve 2 are installed on the blanking pipe;

the balance pipe is communicated with the air supply pipe 6, and the air supply pipe is provided with a balance pipe blockage clearing valve 5.

And the balance pipe is provided with a pressure transmitter 4.

A pressure transmitter is arranged on a balance pipe in the original ash conveying system, and the pressure of the balance pipe is monitored in real time; a gas supply pipe is added on the upper part of the original balance valve, and a balance pipe blockage removing valve is arranged on the pipe. When the corresponding ash bucket does not discharge materials, the balance valve is closed in an interlocking manner, the pressure transmitter at the balance pipe displays micro negative pressure, if the pressure transmitter displays a non-negative pressure state, the balance pipe has a pipe blockage risk, and at the same time, a balance pipe blockage alarm is sent out, the silo pump stops discharging materials, the balance valve is closed in an interlocking manner, after the balance valve is closed in place, the balance pipe blockage cleaning valve is opened in an interlocking manner, after the balance pipe blockage is cleaned for a certain time, the balance pipe blockage cleaning valve is closed, the blanking program is continuously executed, after the blanking is finished, if the pressure transmitter at the balance pipe displays micro negative pressure, the balance pipe is dredged, the balance pipe blockage cleaning program is stopped, and the normal ash conveying program is continuously executed; if blanking is finished, the pressure transmitter at the balance pipe displays non-negative pressure after the balance valve is closed, the balance pipe is not dredged, and the balance pipe blockage removal program is continued; and continuously blanking and clearing the blockage according to the mode.

Claims

1. A clear stifled system of ash conveying storehouse pump balance pipe, its constitution includes: ash bucket and storehouse pump, characterized by: a blanking pipe and a balance pipe are communicated between the ash hopper and the bin pump, and a blanking manual valve and a blanking pneumatic valve are mounted on the blanking pipe;

2. The ash conveying bin pump balance pipeline blockage clearing system as claimed in claim 1, which is characterized in that: and a pressure transmitter is arranged on the balance pipe.

3. The ash conveying bin pump balance pipeline blockage clearing system as claimed in claim 2, wherein: and a balance valve is arranged on the balance pipe.