CN103471116A - Gas supplying subsystem and gas supplying system for heat explosion shock wave soot blower - Google Patents
Gas supplying subsystem and gas supplying system for heat explosion shock wave soot blower Download PDFInfo
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- CN103471116A CN103471116A CN2013104647374A CN201310464737A CN103471116A CN 103471116 A CN103471116 A CN 103471116A CN 2013104647374 A CN2013104647374 A CN 2013104647374A CN 201310464737 A CN201310464737 A CN 201310464737A CN 103471116 A CN103471116 A CN 103471116A
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Abstract
The invention discloses a gas supplying subsystem and a gas supplying system for a heat explosion shock wave soot blower. The gas supplying subsystem is provided with a combustible gas supplying device and a combustion-supporting gas supplying device. The combustible gas supplying device is connected with a gas mixing device through a combustible gas supplying pipeline, and the combustion-supporting gas supplying device is connected with the gas mixing device through a combustion-supporting gas supplying pipeline. The gas mixing device is connected with a plurality of explosion tank sets through a mixed gas distributing device. The combustible gas supplying pipeline is provided with one or more combustible gas supplying branches which are connected in parallel, and the combustion-supporting gas supplying pipeline is provided with a plurality of combustion-supporting gas supplying branches which are connected in parallel. The gas supplying system is composed of a plurality of gas supplying subsystems. The gas supplying subsystem and the gas supplying system have the advantages that requirements for different ash blowing strength of different ash blowing positions can be met through one gas supplying unit, the ash blowing strength can be independently adjusted for the different ash blowing positions, the whole subsystem is only provided with one gas mixing device and one mixed gas distributing device, and the gas supplying subsystem and the gas supplying system are simple in structure, low in cost and convenient to install, and construction can be carried out conveniently.
Description
Technical field
The present invention relates to a kind of collecting ash and remove equipment, specifically a kind of thermal explosion impact wave soot blower air supply system and gas supply system, belong to the boiler sootblower field.
Background technology
After boiler is used a period of time, fouling of heating surface and accumulated slag phenomenon can often occur, thereby reduced the thermal efficiency of boiler and exerted oneself, shorten the service life of boiler, even can bring out security incident.Therefore, boiler must often carry out dust stratification removing processing.Traditional dust stratification is removed equipment steam sootblower, compressed air soot-blowing device, acoustic wave ash ejector and thermal explosion impact wave soot blower usually.Thermal explosion impact wave soot blower is mainly the burning mixture that fuel gas and combustion-supporting gas are mixed, be transported to the blast of blasting pot internal combustion by air delivering pipeline, by the percussion of explosion wave and the souring of sound wave effect and high-speed jet, remove the dust stratification on heat exchanger surface.
At present, the air supply system of traditional thermal explosion impact wave soot blower mainly contains two kinds of modes: first kind of way, as shown in Figure 1, air supply system comprises that a fuel gas supply air line 3 and a combustion-supporting gas supply air line 4 are connected to a gas mixer 5, by mixture distribution device (as electrical ball valve 8), gaseous mixture is transported to several blasting pot groups, every group of blasting pot arranges one or two blasting pot.Its shortcoming is: because gas mixer only has a fuel gas supply air line and a combustion-supporting gas supply air line, carry out air feed, therefore, flow and the pressure of fuel gas and combustion-supporting gas are fixed, the gas mixture ratio example arrived in mixing arrangement is fixing, although the blasting pot group is provided with several, but the gaseous mixture proportioning of each blasting pot group is all identical, thereby can't be regulated the gaseous mixture proportioning of every group of blasting pot after gas mixer, can't be regulated the grey intensity of blowing of every group of blasting pot, can't meet difference and blow grey position to blowing the requirement that grey intensity is different.A multilayer boiler for example, every layer of boiler be due to dust stratification degree difference, the soot blower therefore needed to blow grey intensity also different, simultaneously, along with the increase of height, the length of supply air line also increases thereupon, the fuel gas consumption increases.Therefore, if adopt this air supply system, equipment cost and combustion gas use cost have significantly been increased; In addition, in this air supply system the electrical ball valve diameter be DN50 or more than, cost higher (approximately 3000 yuan).The second way, as shown in Figure 2, air supply system comprises several (4) air supply units, each air supply unit comprises that a fuel gas supply air line 3 is connected a gas mixer 5 with a combustion-supporting gas supply air line 4, every supply air line is equipped with gas flow adjusting means 9, gaseous mixture is transported to a blasting pot group 6, forms a soot blower air supply unit, so a plurality of soot blower air supply units form a kind of thermal explosion shock wave soot blower system.Its advantage is: the distribution separately of each air supply unit, for example name is called " unit type intelligent gas pulse ash blower and control method thereof ", the Chinese invention patent that application number is " CN200410057400.2 " is the air supply system of this kind of structure, thereby can be regulated the grey intensity of blowing of each blasting pot group, satisfied difference is blown grey position and is blown the requirement that grey intensity is different; But its shortcoming is to need a plurality of soot blower air supply units, each air supply unit all needs a fuel gas supply air line, a combustion-supporting gas supply air line, an independent distribution of gas mixer, the supply air line complexity, the installation complexity, the soot blower cost is high.
Summary of the invention
In order to address the above problem, the present invention has designed a kind of thermal explosion impact wave soot blower air supply system and gas supply system, meet difference and blown grey position to blowing the needs that grey intensity is different, realized that the best of soot blower blows grey effect, simple in structure, cost is low, and standardization level is high, installation is convenient, is conducive to the popularization of thermal explosion impact wave soot blower in different field.
Technical scheme of the present invention is:
A kind of thermal explosion impact wave soot blower air supply system, described air supply system is provided with fuel gas feeder and combustion-supporting gas feeder, described fuel gas feeder is connected with a gas mixer by the fuel gas supply air line, described combustion-supporting gas feeder is connected with described gas mixer by the combustion-supporting gas supply air line, described gas mixer is connected with several blasting pot groups by a mixture distribution device, forms the air supply system of thermal explosion impact wave soot blower;
Described fuel gas supply air line is provided with the fuel gas air feed branch road of one or more parallel connection, all with described gas mixer, be connected, every branch road is equipped with fuel gas flow regulator such as flow control valve etc., can be regulated and open and close the flow of fuel gas;
Described combustion-supporting gas supply air line is provided with the combustion-supporting gas air feed branch road of one or more parallel connection, all with described gas mixer, be connected, every branch road is equipped with combustion-supporting gas flow regulator such as flow control valve etc., can be regulated and open and close the flow of combustion-supporting gas.
For example, described fuel gas supply air line is provided with the fuel gas air feed branch road of 1-N bar parallel connection, and described combustion-supporting gas supply air line is provided with the combustion-supporting gas air feed branch road of 2-N bar parallel connection; Perhaps, described fuel gas supply air line is provided with the fuel gas air feed branch road of 2-N bar parallel connection, and described combustion-supporting gas supply air line is provided with the combustion-supporting gas air feed branch road of 1-N bar parallel connection.Wherein N is greater than 1 integer.
Only has one with described fuel gas air feed branch road with the described gas mixer that described combustion-supporting gas air feed branch road is connected in air supply system of the present invention, the mixture distribution device be connected with described gas mixer only has one, , a fuel gas air feed branch road, , a combustion-supporting gas air feed branch road, a gas mixer and air supply unit of a mixture distribution installation composition, each air supply unit shares same gas mixer and a mixture distribution device, every combustion-supporting gas air feed branch road can be combined from different fuel gas air feed branch roads respectively, form different air supply units, each air supply unit carries out Flow-rate adjustment by the flow regulator on this air feed branch road, complete the distribution combination of gas, obtain the mist of different proportionings, produce the different grey intensity of blowing, satisfied difference is blown grey position and is blown the demand that grey intensity is different.
Fuel gas and combustion-supporting gas arrive gas mixer by feeder by supply air line, after fully mixing in gas mixer, be delivered to the mixture distribution device, give many blasting pot group branch roads by the mixture distribution device by mixed gas distribution, by after ignition device, in the blasting pot group, producing the gas burst effect, complete the purging of dust stratification.Blow grey position in difference and carry out when work ash of blowing that difference is blown grey intensity, only open a fuel gas air feed branch road, , combustion-supporting gas air feed branch road and a blasting pot group branch road, close all the other branch roads, regulate mist to optimal proportion, can carry out the specific ash work of blowing of blowing grey intensity to a certain position, open again another fuel gas air feed branch road after completing, another combustion-supporting gas air feed branch road and another blasting pot group branch road, close all the other branch roads, regulate mist to optimal proportion, can carry out the specific ash work of blowing of blowing grey intensity to another location, the like, completing difference blows grey position and carries out the ash work of blowing that difference is blown grey intensity.Whole system only has a gas mixer and a mixture distribution device, and simple in structure, cost is low, and standardization level is high, and installation is convenient.
Wherein, described fuel gas comprises one or more in acetylene, hydrogen, methane, natural gas, petrochemical industry by-product dry gas etc.; Described combustion-supporting gas comprises air, compressed air or oxygen etc.
Further, described flow regulator can be the device of air pulsing flow regulator or other adjusting gas flow and keying, and for example flow control valve, can not exert an influence to the present invention.
Further, described mixture distribution device is provided with collecting pipe, the arrival end of described collecting pipe is communicated with the port of export of gas mixer, the port of export of described collecting pipe is provided with a plurality of, each port of export is communicated with the blasting pot group by control valve, every blasting pot group branch road is equipped with control valve, controls the keying of this branch road.The mixture distribution device also can adopt other gas distributing device that can realize this gas distribution function, to the present invention, can not exert an influence.
Further, described gas mixer is provided with igniter, and described igniter can be the fuel gas ignition installations such as ignition.Described gas mixer can be any equipment that can realize that gas with various mixes, to the present invention, can not exert an influence.
Further, described fuel gas flow regulator all is connected with central controller controls with the combustion-supporting gas flow regulator, by its keying of central controller controls and opening and closing time length, realizes automation control, wherein, described central controller is programmable logic controller (PLC) PLC.
The present invention is by controlling respectively flow and the pressure of each different fuel gas supply air line and combustion-supporting gas supply air line, through gas mixer and mixture distribution device, carry the different mist of proportioning in each blasting pot group, thereby realize regulating of gas mixing ratio in each blasting pot group, satisfied difference is blown the requirement that grey position difference is blown grey intensity.
A kind of thermal explosion impact wave soot blower gas supply system, described gas supply system is comprised of several above-mentioned air supply systems, and the grey intensity of blowing of each air supply system is adjustable, can blow grey position to difference regulates and blows grey intensity separately, thereby the integral body of being convenient to a boiler plant is blown grey engineering, avoided needing to lay because the grey position of blowing of boiler is different the long defect apart from pipeline or owing to blowing grey position difference, blow unadjustable the causing of grey intensity and blow grey weak effect.Described gas supply system can be comprised of 2-N described air supply system.For example, a multilayer boiler, there are two sides, each side need to have three to blow grey position, one of them one of side needs has three the first air supply systems that blow grey intensity, another side needs another to have three the second air supply systems that blow grey intensity, and two air supply systems work alone respectively, and the integral body that jointly completes this boiler is blown ash work.
The invention has the advantages that: can be according to the various combination quantity of fuel gas air feed branch road and combustion-supporting gas air feed branch road, obtain different gas proportion mixings, be assigned to different blasting pot groups, realize the different grey intensity of blowing, realize that by an air supply unit blowing grey position for difference blows the needs that grey intensity is different, difference is blown to grey position regulates and blows grey intensity separately, whole system only has a gas mixer and a mixture distribution device, simple in structure, cost is low, standardization level is high, installation is convenient, be conducive to the popularization of thermal explosion impact wave soot blower in different field.
Below in conjunction with accompanying drawing, with enforcement, the invention will be further described.
The accompanying drawing explanation
The structural representation that Fig. 1 is the prior art first kind of way;
The structural representation that Fig. 2 is the prior art second way;
The structural representation that Fig. 3 is the embodiment of the present invention 1 air supply system;
The structural representation that Fig. 4 is the embodiment of the present invention 2 air supply systems;
The structural representation that Fig. 5 is the embodiment of the present invention 3 gas supply systems;
In figure: 1-fuel gas feeder, 2-combustion-supporting gas feeder, 3-fuel gas supply air line, 4-combustion-supporting gas supply air line, the 5-gas mixer, 6-blasting pot group, 7-mixture distribution device, the 8-electrical ball valve, the 9-gas flow adjusting means, 31-the first fuel gas air feed branch road, 32-the second fuel gas air feed branch road, 41-the first combustion-supporting gas air feed branch road, 42-the second combustion-supporting gas air feed branch road, 311-the first fuel gas flow regulator, 321-the second fuel gas flow regulator, 411-the first combustion-supporting gas flow regulator, 421-the second combustion-supporting gas flow regulator.
The specific embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
Embodiment 1
As shown in Figure 3, a kind of thermal explosion impact wave soot blower air supply system, described air supply system is provided with fuel gas feeder 1 as acetylene air tower or acetylene air feed tank, and combustion-supporting gas feeder 2 is as compressed air air tower or compressed air air feed tank, described fuel gas feeder 1 is connected with gas mixer 5 by fuel gas supply air line 3, described combustion-supporting gas feeder 2 is connected with described gas mixer 5 by combustion-supporting gas supply air line 4, described gas mixer 5 is connected with a mixture distribution device 7, described mixture distribution device 7 is connected with a plurality of different blasting pot groups 6 by some blasting pot group branch roads, each blasting pot group 6 is provided with one or two blasting pot, gaseous mixture is transported to each blasting pot group, described blasting pot group is connected with jet pipe, by jet pipe, dust stratification is purged, the air supply system that forms thermal explosion impact wave soot blower,
The fuel gas air feed branch road that described fuel gas supply air line 3 is provided with 2 parallel connections is the first fuel gas air feed branch road 31 and the second fuel gas air feed branch road 32, every branch road is equipped with fuel gas flow regulator i.e. the first fuel gas flow regulator 311 and the second fuel gas flow regulator 321, can be regulated and open and close the flow (gas loading) of fuel gas;
Described combustion-supporting gas supply air line 4 is provided with i.e. the first combustion-supporting gas air feed branch road 41 of 1 combustion-supporting gas air feed branch road, and be provided with i.e. the first combustion-supporting gas flow regulator 411 of combustion-supporting gas flow regulator, can be regulated and be opened and closed the flow (gas loading) of combustion-supporting gas;
Combined by 1 combustion-supporting gas air feed branch road and 2 fuel gas air feed branch roads, the first combustion-supporting gas air feed branch road 41 is combined with the first fuel gas air feed branch road 31 and the second fuel gas air feed branch road 32 respectively, form 2 kinds of different gaseous mixture proportioning combinations, by two blasting pot groups, realize that two different parts blow the demand that grey intensity is different.
Wherein, described fuel gas comprises one or more in acetylene, hydrogen, methane, natural gas, petrochemical industry by-product dry gas etc.;
Described mixture distribution device 7 is provided with collecting pipe, the arrival end of described collecting pipe is communicated with the port of export of gas mixer, the port of export of described collecting pipe is provided with a plurality of, each port of export is communicated with the blasting pot group by control valve, every blasting pot group branch road is equipped with control valve, controls keying and the opening and closing time length of this branch road.For example, name is called the Chinese utility model patent disclosed mixed gas distribution cabinet of " a kind of mixed gas distribution cabinet for thermal explosion impact wave soot blower " application number for " CN201020608220.X ".
In addition, described gas mixer 5 is provided with igniter, and described igniter can be the fuel gas ignition installations such as ignition.Described gas mixer 5 can be any equipment that can realize that gas with various mixes that soot blower uses, and to the present invention, can not exert an influence.
Described fuel gas flow regulator all is connected with central controller controls with the combustion-supporting gas flow regulator, by its keying of central controller controls and opening and closing time length (size of flow), realize automation control, wherein, described central controller is programmable logic controller (PLC) PLC.
As shown in Figure 4, the present embodiment is substantially the same manner as Example 1, and difference is:
The combustion-supporting gas air feed branch road that described combustion-supporting gas supply air line 4 is provided with 2 parallel connections is the first combustion-supporting gas air feed branch road 41 and the second combustion-supporting gas air feed branch road 42, every branch road is equipped with combustion-supporting gas flow regulator i.e. the first combustion-supporting gas flow regulator 411 and the second combustion-supporting gas flow regulator 421, can be regulated and open and close the flow of combustion-supporting gas;
Combined by 2 combustion-supporting gas air feed branch roads and 2 fuel gas air feed branch roads, the first combustion-supporting gas air feed branch road 41 is combined with the first fuel gas air feed branch road 31 and the second fuel gas air feed branch road 32 respectively, the second combustion-supporting gas air feed branch road 42 is combined with the first fuel gas air feed branch road 31 and the second fuel gas air feed branch road 32 respectively, form 4 kinds of various combinations, complete the distribution combination of gas, by four blasting pot groups, realize that four different parts blow the demand that grey intensity is different.
In like manner, described fuel gas supply air line can be provided with some parallel branches, every is equipped with a fuel gas flow control valve, described combustion-supporting gas supply air line also can be provided with some parallel branches, every is equipped with a combustion-supporting gas flow control valve, various combination quantity according to fuel gas air feed branch road and combustion-supporting gas air feed branch road, obtain different gas proportion mixings, is assigned to different blasting pot groups.
As shown in Figure 5, a kind of thermal explosion impact wave soot blower gas supply system, described gas supply system is comprised of several (the present embodiment is 3) above-mentioned air supply systems, and the grey intensity of blowing of each air supply system is adjustable, can blow grey position to difference regulates and blows grey intensity separately, thereby the integral body of being convenient to a boiler plant is blown grey engineering, avoided needing to lay because the grey position of blowing of boiler is different the long defect apart from pipeline or owing to blowing grey position difference, blow unadjustable the causing of grey intensity and blow grey weak effect.For example, three layers of boiler, there are 3 sides, a side need to have four to blow grey position, all the other sides need to have two to blow grey position, one of them one of side needs has four the first air supply systems that blow grey intensity, two other side need to have two the second air supply system and the 3rd air supply systems that blow grey intensity, this gas supply system is comprised of two described air supply systems of embodiment 1 and a described air supply system of embodiment 2, each air supply system shares a fuel gas feeder 1 and a combustion-supporting gas feeder 2, the integral body that jointly completes this boiler is blown ash work.
The like, this gas supply system can also be comprised of multiple different air supply system.
In addition, above-mentioned gas flow regulator 9(comprises the first fuel gas flow regulator 311, the second fuel gas flow regulator 321, the first combustion-supporting gas flow regulator 411, the second combustion-supporting gas flow regulator 421) be the device of air pulsing flow regulator or other adjusting gas flow and keying.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment, the present invention is had been described in detail, for a person skilled in the art, its technical scheme that still can put down in writing aforementioned each embodiment is modified, or part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a thermal explosion impact wave soot blower air supply system, it is characterized in that: described air supply system is provided with fuel gas feeder and combustion-supporting gas feeder, described fuel gas feeder is connected with a gas mixer by the fuel gas supply air line, described combustion-supporting gas feeder is connected with described gas mixer by the combustion-supporting gas supply air line, and described gas mixer is connected with several blasting pot groups by a mixture distribution device;
Wherein, described fuel gas supply air line is provided with the fuel gas air feed branch road of one or more parallel connection, and every branch road is equipped with the fuel gas flow regulator;
Described combustion-supporting gas supply air line is provided with the combustion-supporting gas air feed branch road of one or more parallel connection, and every branch road is equipped with the combustion-supporting gas flow regulator;
Only has one with described fuel gas air feed branch road with the described gas mixer that described combustion-supporting gas air feed branch road is connected;
The mixture distribution device be connected with described gas mixer only has one.
2. air supply system according to claim 1, it is characterized in that: described fuel gas supply air line is provided with the fuel gas air feed branch road of 1-N bar parallel connection;
Described combustion-supporting gas supply air line is provided with the combustion-supporting gas air feed branch road of 2-N bar parallel connection.
3. air supply system according to claim 1, it is characterized in that: described fuel gas supply air line is provided with the fuel gas air feed branch road of 2-N bar parallel connection;
Described combustion-supporting gas supply air line is provided with the combustion-supporting gas air feed branch road of 1-N bar parallel connection.
4. air supply system according to claim 1, it is characterized in that: described fuel gas comprises one or more in acetylene, hydrogen, methane, natural gas, petrochemical industry by-product dry gas; Described combustion-supporting gas comprises air, compressed air or oxygen.
5. air supply system according to claim 1, it is characterized in that: described mixture distribution device is provided with collecting pipe, the arrival end of described collecting pipe is communicated with the port of export of gas mixer, the port of export of described collecting pipe is provided with a plurality of, each port of export is communicated with the blasting pot group by control valve, and every blasting pot group branch road is equipped with control valve.
6. according to the described air supply system of claim 1-5 any one, it is characterized in that: described fuel gas flow regulator all is connected with central controller controls with the combustion-supporting gas flow regulator, by its keying of central controller controls and opening and closing time length.
7. a thermal explosion impact wave soot blower gas supply system, described gas supply system is comprised of as the described air supply system of claim 1-6 any one several.
8. gas supply system according to claim 7 is characterized in that: described gas supply system is comprised of 2-N described air supply system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013104647374A CN103471116A (en) | 2013-10-09 | 2013-10-09 | Gas supplying subsystem and gas supplying system for heat explosion shock wave soot blower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013104647374A CN103471116A (en) | 2013-10-09 | 2013-10-09 | Gas supplying subsystem and gas supplying system for heat explosion shock wave soot blower |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654332A (en) * | 2015-01-27 | 2015-05-27 | 深圳凡元兴科技有限公司 | Thermal explosion soot blowing device |
| CN109779786A (en) * | 2019-02-22 | 2019-05-21 | 龙世朗 | Egg type pulsed motor |
| CN112204308A (en) * | 2018-05-30 | 2021-01-08 | 川崎重工业株式会社 | Incineration equipment |
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| CN1683829A (en) * | 2004-08-31 | 2005-10-19 | 北京嘉德兴业科技有限公司 | Unit type intelligent gas pulse ash blower and its control method |
| CN101290128A (en) * | 2008-05-21 | 2008-10-22 | 北京高瞻科技有限公司 | Parallel pipeline sharing type three pipes heat explosion pulse ash-blowing device |
| CN202066414U (en) * | 2010-11-08 | 2011-12-07 | 潍坊有利客电力机械科技有限公司 | Mixed gas distribution cabinet for thermal explosion impact wave soot blower |
| CN203642206U (en) * | 2013-10-09 | 2014-06-11 | 潍坊有利客电力机械科技有限公司 | Gas supply device and system for heat explosion shock wave soot blower |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1683829A (en) * | 2004-08-31 | 2005-10-19 | 北京嘉德兴业科技有限公司 | Unit type intelligent gas pulse ash blower and its control method |
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| CN202066414U (en) * | 2010-11-08 | 2011-12-07 | 潍坊有利客电力机械科技有限公司 | Mixed gas distribution cabinet for thermal explosion impact wave soot blower |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654332A (en) * | 2015-01-27 | 2015-05-27 | 深圳凡元兴科技有限公司 | Thermal explosion soot blowing device |
| CN104654332B (en) * | 2015-01-27 | 2017-07-04 | 深圳凡元兴科技有限公司 | A kind of thermal explosion soot blower |
| CN112204308A (en) * | 2018-05-30 | 2021-01-08 | 川崎重工业株式会社 | Incineration equipment |
| CN109779786A (en) * | 2019-02-22 | 2019-05-21 | 龙世朗 | Egg type pulsed motor |
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Application publication date: 20131225 |