CN2426572Y - Gas pulse soot-blowing controlling device for boiler - Google Patents
Gas pulse soot-blowing controlling device for boiler Download PDFInfo
- Publication number
- CN2426572Y CN2426572Y CN 00212351 CN00212351U CN2426572Y CN 2426572 Y CN2426572 Y CN 2426572Y CN 00212351 CN00212351 CN 00212351 CN 00212351 U CN00212351 U CN 00212351U CN 2426572 Y CN2426572 Y CN 2426572Y
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- valve
- pipeline
- fuel gas
- soot
- control
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Abstract
The utility model relates to a gas pulse soot-blowing controlling device for boilers, which belongs to a soot deposit cleaning controlling device for boilers. The utility model is suitable for the control of soot-blowing devices for cleaning the soot deposit of each heat-exchange area of boilers in a pulse detonation way, such as, boiler fuel gas pulse soot-blowing equipment, shock wave pulse soot-blowing equipment, pulse fuel gas soot-blowing equipment, etc. The utility model is characterized in that a control part is composed of a main control cabinet and a field branch control cabinet; pipelines are composed of an air pipeline and a gas pipeline; the work of the soot deposit cleanness of the boilers is realized mainly through automatic control. The utility model aims to solve the problems existing in aspects, such as troublesome operation of soot deposit cleaning systems of the boilers, high labor strength, effect on equipment operation effects, etc.
Description
The utility model belongs to the control device that boiler is removed dust stratification, is applicable to the control that boiler fuel gas pulse ash blower equipment, shock wave impulse soot blowing equipment, gas-burning pulse ash-blowing equipment etc. are removed the slag-blowing equipmemt of each heat-transfer surface dust stratification of boiler in the pulse explosion mode.
Boiler pulse formula soot blower the earliest---the control device of gas impulse soot blowing system, only to controlling the inlet period and the duration of ignition of this system, other parts all adopt artificial manual control, user's labour intensity is big, usually can not come into operation on schedule, influenced the result of use of this equipment greatly owing to system's troublesome poeration.
At problem set forth above, the utility model provides a kind of boiler fuel gas pulse ash blower control device, and its purpose is to solve boiler and removes the problem that dust stratification system troublesome poeration, labour intensity are big, influence aspect existence such as equipment result of use.
The utility model comes to be realized by the following technical programs:
A kind of boiler fuel gas pulse ash blower control device, include igniter, it is characterized in that: the control section of this device is made of main control cabinet and the on-the-spot control cabinet two parts that divide, the output of main control cabinet is connected with the on-the-spot control cabinet that divides, and control cabinet be connected with flow sensor, motor-driven valve, magnetic valve and control valve in the pipeline on-the-spot the branch; Pipeline is made up of air pipe line and fuel gas pipeline, and blower fan is connected with a parallel pipeline in the air pipe line, wherein is provided with valve and air pipe line flowmeter in a pipeline, and another pipeline is provided with valve; Fuel gas source is connected with valve, a parallel pipeline in the fuel gas pipeline, wherein is provided with valve and fuel gas pipeline flowmeter in a pipeline, is provided with valve in another pipeline; Pipeline after the parallel connection is connected on the mixing arrangement with air pipe line by control valve, is connected on layer flame distributor by an igniter, is provided with to be high temperature electrical ball valve F1～Fn on layer flame distributor.
The rear portion of valve in fuel gas pipeline (6) is provided with and is flow-through orifice (18).
In fuel gas pipeline, be provided with non-return valve Z1, Z2.
Advantage of the present utility model and effect are the control accuracies that the use of this soot blower not only can improve impulse soot blowing, and economy, security and the reliability of the operation of raising system have also reduced operation and maintenance person's advantages such as labour intensity simultaneously.
Accompanying drawing 1 is an automatic structure schematic diagram of the present utility model;
Accompanying drawing 2 is a semi-automatic structural representation of the present utility model.
The utility model is specifically described by embodiment below in conjunction with accompanying drawing:
The main control part of boiler fuel gas pulse ash blower control device is a main control cabinet 17, it is to adopt PLC to be the control core, to on accept the management of computer, the various piece of equipment is carried out control downwards, its control mainly comprises: the switch of motor-driven valve, electromagnetic valve switch, inflationtime control, the control duration of ignition, charge flow rate control, admission pressure control; Host computer is used for the setting of systematic parameter and sets up register system operating position archives.Main control part can be realized many stove centralized Control, can select equipment place pot heat (batch) number, selected every mechanical floor to select valve number in master control system; Set every layer inflationtime, the switch of control air inlet magnetic valve, adjust combustion gas and Air mixing ratio according to flow signal, system will close magnetic valve when inflationtime reached setting value under preset proportion, igniting then, finish and once blow the ash work period, so repeat to close this layer behind the ash and select motor-driven valve until finishing blowing of this layer; Repeating one deck work down, till structure at all levels work is finished.
Boiler gas impulse control device can be set following parameter in main control part:
Selected boiler numbering, selected heat-transfer surface level number, setting combustion gas and air mixed proportion, Number Of Bursts, inflationtime.
The working method that boiler gas impulse control device can be selected in main control part: automatically with manual.It all is predefined in program selecting above-mentioned each parameter of automatic working method, and the work of equipment is to carry out regularly according to predetermined mode.Above each parameter of selecting the manual work mode is to be provided with according to the actual conditions of equipment by the user, and equipment will be according to user's the work that requires.
This control device has two kinds of control schemes:
One, Automatic Control: regulate the combustion gas mixing ratio automatically before the each use of equipment, device is as accompanying drawing 1.This device is mainly by 1 blower fan, 2 electrical ball valves, 3 air pipe line flowmeters, 4 electrical ball valves, 5 electrical ball valves, 6,7,9 is the acetylene hose way solenoid valve, and 8 is the acetylene pipeline flowmeter, and 10 is high-energy igniter, 11 is acetylene pipeline flow control valve, F1～Fn is the high temperature electrical ball valve, the on-the-spot switch board 16 that divides of device, and control room main control cabinet 17 is formed.Main control part control mode and the double control of field control part control mode are adopted in control, and the function that two parts are realized is basic identical, and field control partly adopts single-chip microcomputer to control, and is mainly used in equipment debugging and on-site maintenance.Because generally, the scene of boiler fuel gas pulse ash blower system is far away from main control room, as do not have that situ part then debugs must be by just carrying out more than two people, and two the people to coordinate mutually, must adopt intercom or other liaison methods to realize, have such problem too in this equipment working service afterwards equally.Adopt the field control part that the debugging and the scene that is maintained in are carried out on the spot, be convenient to find the existing problem of field apparatus, save field adjustable and maintenance time greatly.As have only on-site control device bring a lot of inconvenience can for again the normal use of this equipment, the existing problem of equipment also is difficult in time being found simultaneously, therefore, we adopt PLC in main control room be central control unit, adopt computer or industrial computer initialization system running parameter, the surveillance course of work reflects the problem that exists in working state of system and the work in real time, and fault is implemented monitoring and management.Avoid the equipment existing unsafe factor that operates with failure.
Device is controlled according to following process:
(1) adjustment process of flow is at first opened the selected layer motor-driven valve among the Fn, opens motor-driven valve 2,4 simultaneously; Open blower fan 1, open 6,7 again; After several seconds, treat stability of flow, reading flow value from mass air flow sensor 3, gas meter 8 respectively, and flow signal is delivered to the scene divide control cabinet single-chip microcomputer or master control cabinet PLC, signal sends signal to flow control valve 11 after treatment, regulates 11 aperture, till gas flow and air mass flow reach the ratio of setting, adjusting finishes the back maintenance to control valve 11 input stabilization signals maintenance control valve openings, closes motor-driven valve 2,4 and magnetic valve 6,7 simultaneously.
(2) course of work: open motor-driven valve 5, after to be opened, open magnetic valve 6,9 again, to system's air feed, when reaching service life, close magnetic valve 6,9, send the signal igniting to igniter 10, finish a work period, repeat to open the course of work of magnetic valve/igniting, till reaching Number Of Bursts.The dust stratification removing work of one deck is promptly finished like this.
(3) finish the removing of other heat-transfer surface by the course of work of (1), (2), between different be each selected motor-driven valve Fn difference, promptly, just can finish the removing of the dust stratification of this layer by above step by the motor-driven valve of the selection control system working surfaces of envisioning.
Two, semiautomatic control: the flow adjustment adopts artificial method of adjustment regularly to adjust the combustion gas mixing ratio, regulates the combustion gas mixing ratio at every turn before can using and also can regularly adjust the combustion gas mixing ratio, system such as accompanying drawing 2.This system is mainly by 1 blower fan, 2 manual ball valves, 3 air pipe line flowmeters, 4 manual ball valves, 5 manual ball valves, 6, be the acetylene hose way solenoid valve, 18 is flow-through orifice, 7, be debugging pipeline manual ball valve, 8 is the acetylene pipeline flowmeter, and 9 is manual ball valve, 10 is high-energy igniter, F1～Fn is the high temperature electrical ball valve, on-the-spot distributed control device 16, main control unit 17.Control can be adopted master control control and two kinds of controls of field control, and principle is the same.
System controls according to following process:
(1) adjustment process of flow: the at first on-the-spot a certain selected layer motor-driven valve of opening among the Fn (, also using this valve) with post debugging as benchmark, open ball valve 2,4 afterwards, close ball valve 5; Open ball valve 8, close ball valve 10, open blower fan 1 then, open magnetic valve 6 simultaneously; After several seconds, treat stability of flow, reading flow value from mass air flow sensor 3, gas meter 8 calculates desirable gas-flow value according to the air mass flow value respectively, and manual adjustments flow-through orifice (flow-through orifice is opened by closing gradually) makes gas flow and air mass flow reach desirable mixed proportion then, firm discharge orifice plate position, close magnetic valve 6, blower fan 1 then, close ball valve 2,4,8 then, open ball valve 5,10, close motor-driven valve Fn, Flow-rate adjustment finishes.
(2) course of work: open selected layer and select motor-driven valve Fn, to be opened after, open blower fan 1, open magnetic valve 6 again, to system's air feed, when reaching service life, close magnetic valve 6, send the signal igniting to igniter 10, finish the one action process; Repeat to open the course of work of magnetic valve/igniting, till reaching Number Of Bursts.The dust stratification removing work of one deck is promptly finished like this.
(3) finish the removing of other heat-transfer surface by the course of work of (1), (2), between the different each selected motor-driven valve Fn differences of knowledge, promptly, just can finish the removing of the dust stratification of this layer by above step by the motor-driven valve of the selection control system working surfaces of envisioning.
Other parts in the system do not belong to control assembly, be used for combustion gas and air from minute mixing as: mixing arrangement 13, the mist that igniter 14 is used for is wherein lighted, spark arrester 12 will prevent the passback of flame, be used for preventing the lighting a fire passback of mixing arrangement pressure of layer flame distributor 15, non-return valve Z1, non-return valve Z2 is used to prevent the impact of pressure oscillation flow sensor,, non-return valve Z2 is used for this pipeline of balance and the pressure reduction of regulating pipeline.Though these parts are not the control assembly of system, to the normal operation of boiler soot-blowing service system, guarantee the service life of equipment, all be very important and requisite, so the important component part that also is.
Claims (3)
1, a kind of boiler fuel gas pulse ash blower control device, include igniter (14), it is characterized in that: the control section of this device is made of main control cabinet (17) and on-the-spot control cabinet (16) two parts that divide, the output of main control cabinet (17) is connected with the on-the-spot control cabinet (16) that divides, and control cabinet (16) be connected with flow sensor, motor-driven valve, magnetic valve and control valve in the pipeline on-the-spot the branch; Pipeline is made up of air pipe line and fuel gas pipeline, and blower fan in the air pipe line (1) is connected with a parallel pipeline, wherein is provided with valve (2), (4) and air pipe line flowmeter (3) in a pipeline, and another pipeline is provided with valve (5); Fuel gas source is connected with valve (6), a parallel pipeline in the fuel gas pipeline, wherein is provided with valve (7) and fuel gas pipeline flowmeter (8) in a pipeline, is provided with valve (9) in another pipeline; Pipeline after the parallel connection is connected on the mixing arrangement (13) with air pipe line by control valve (12), is connected on layer flame distributor (15) by an igniter (14), is provided with to be high temperature electrical ball valve F1～Fn on layer flame distributor (15).
2, boiler fuel gas pulse ash blower control device according to claim 1 is characterized in that: the rear portion of valve in fuel gas pipeline (6) is provided with and is flow-through orifice (18).
3, boiler fuel gas pulse ash blower control device according to claim 1 is characterized in that: be provided with non-return valve Z1, Z2 in fuel gas pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00212351 CN2426572Y (en) | 2000-06-21 | 2000-06-21 | Gas pulse soot-blowing controlling device for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00212351 CN2426572Y (en) | 2000-06-21 | 2000-06-21 | Gas pulse soot-blowing controlling device for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2426572Y true CN2426572Y (en) | 2001-04-11 |
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ID=33578879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00212351 Expired - Fee Related CN2426572Y (en) | 2000-06-21 | 2000-06-21 | Gas pulse soot-blowing controlling device for boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2426572Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7267134B2 (en) | 2004-03-15 | 2007-09-11 | United Technologies Corporation | Control of detonative cleaning apparatus |
| CN101975400A (en) * | 2010-11-09 | 2011-02-16 | 东南大学 | Soot-blowing control device and method for boiler furnace based on heat flow online measurement |
| CN102095204A (en) * | 2010-11-09 | 2011-06-15 | 东南大学 | Boiler soot blowing control device based on flue fly ash mass flow |
| CN102183034A (en) * | 2011-03-03 | 2011-09-14 | 北京凡元兴科技有限公司 | Operating method of gas pulse soot blower for effectively collecting soot blowing residue |
| CN108688855A (en) * | 2016-04-28 | 2018-10-23 | 天津市福鼎机电设备有限公司 | A kind of application method of the reinforcing bar-binding machine based on driven folding clamping block unit |
| CN108816940A (en) * | 2018-05-21 | 2018-11-16 | 谭莉莉 | A kind of cleaned stream device suitable for lighting apparatus production |
| CN109682272A (en) * | 2018-12-26 | 2019-04-26 | 北京光华纺织集团有限公司 | A kind of shock wave apparatus to cause bursting |
-
2000
- 2000-06-21 CN CN 00212351 patent/CN2426572Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7267134B2 (en) | 2004-03-15 | 2007-09-11 | United Technologies Corporation | Control of detonative cleaning apparatus |
| CN101975400A (en) * | 2010-11-09 | 2011-02-16 | 东南大学 | Soot-blowing control device and method for boiler furnace based on heat flow online measurement |
| CN102095204A (en) * | 2010-11-09 | 2011-06-15 | 东南大学 | Boiler soot blowing control device based on flue fly ash mass flow |
| CN102183034A (en) * | 2011-03-03 | 2011-09-14 | 北京凡元兴科技有限公司 | Operating method of gas pulse soot blower for effectively collecting soot blowing residue |
| CN102183034B (en) * | 2011-03-03 | 2012-09-05 | 北京凡元兴科技有限公司 | Operating method of gas pulse soot blower for effectively collecting soot blowing residue |
| CN108688855A (en) * | 2016-04-28 | 2018-10-23 | 天津市福鼎机电设备有限公司 | A kind of application method of the reinforcing bar-binding machine based on driven folding clamping block unit |
| CN108816940A (en) * | 2018-05-21 | 2018-11-16 | 谭莉莉 | A kind of cleaned stream device suitable for lighting apparatus production |
| CN109682272A (en) * | 2018-12-26 | 2019-04-26 | 北京光华纺织集团有限公司 | A kind of shock wave apparatus to cause bursting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |