CN103604131A - Suspension-type economizer ash conveying system - Google Patents
Suspension-type economizer ash conveying system Download PDFInfo
- Publication number
- CN103604131A CN103604131A CN201310602230.0A CN201310602230A CN103604131A CN 103604131 A CN103604131 A CN 103604131A CN 201310602230 A CN201310602230 A CN 201310602230A CN 103604131 A CN103604131 A CN 103604131A
- Authority
- CN
- China
- Prior art keywords
- ash
- economizer
- transmitter
- valve
- transmission system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Air Transport Of Granular Materials (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention discloses a suspension-type economizer ash conveying system used for conveying flying ash in an economizer hopper to an ash silo or an electric precipitation inlet flue. The economizer ash conveying system comprises a sender group, a discharge valve, an air supply device and an assorted conveying pipeline; the sender group comprises multiple senders which are serially connected, each sender is suspended to be formed under a corresponding economizer hopper, a feed valve is further arranged between each sender and the corresponding economizer hopper, the discharge valve is arranged on the conveying pipeline of an outlet of the sender group, and the air supply device supplies conveying power for the flying ash in the conveying pipeline. The senders suspended under the hoppers are adopted to convey the flying ash of the economizer to the ash solo or the electric precipitation inlet flue, so that the problems that a conventional economizer ash conveying system is huge in energy consumption, serious in abrasion of the pipeline and the valves, prone to blockage, high in needed mounting height and the like are solved; the economizer ash conveying system is enabled to be more economical, practical and reasonable, and reliability of system operation can be greatly improved.
Description
Technical field
The present invention relates to a kind of powder material pneumatic conveying system, particularly economizer flying dust air-transport system.
Background technology
Economizer is exactly in boiler back end ductwork, boiler feedwater to be heated into the heating surface of saturation water under drum pressure, and what absorb due to its is the flue gas than lower temperature, has reduced the exhaust gas temperature of flue gas, has saved the energy, has improved efficiency, so be referred to as economizer.Economizer is the important component part of boiler, if can not normally move, will cause air preheater Wear and plug, affects the heat transfer effect of heat exchange element.Boiler economizer is all provided with ash discharging hole conventionally, installs induction system the flying dust of collecting in ash bucket is seen off in time under ash discharging hole.The conventional defeated grey mode of economizer has strength conveying, hydraulic flushing ash and machinery to carry three kinds, and the defeated ash of current domestic economizer be take pneumatic conveying mode as main.
The problems such as economizer ash is the more insoluble problem of air-transport system because himself particle is thick, than the feature such as great always, and traditional economizer ash-transmission system ubiquity air consumption is large, and equipment attrition is serious, and operation maintenance amount is large, and system reliability is low.In addition, because economizer hopper three-dimensional expansion amount is larger, as transmitter being arranged on economizer platform, need longer expansion joint (L=1.5m ~ 2m) is installed, easily cause equipment setting height(from bottom) inadequate.In most of economizer ash induction system designs, all that its serial or parallel connection to electric cleaner ash is delivered to grey storehouse together, some power plant directly sends economizer ash into electric precipitation gas approach, after mixing with electric cleaner ash, by electric cleaner ash-transmission system, send into grey storehouse, also some power plant has simply shielded economizer ash disposal system, but unit builds up after putting into operation and will go wrong.
These problems that exist in actual motion in order to solve traditional economizer pneumatic ash transmitting system, domestic each strength carries producer to improve one after another, optimize traditional economizer ash-transmission system, seek a kind of more economically, practical, rational economizer air-transport system.
Summary of the invention
Native system adopt be suspended to ash bucket below transmitter by economizer fly ash carry to grey storehouse or electric precipitation inlet flue duct, the problem such as solved that traditional economizer induction system energy consumption is large, pipeline and valve serious wear, easily plugging, required setting height(from bottom) are higher, make economizer ash-transmission system more economically, practical, rationally, system reliability of operation also improves greatly.
For achieving the above object, the invention provides following technical scheme:
A kind of suspension type economizer ash-transmission system, in order to by the fly ash carry in economizer hopper to grey storehouse or electric precipitation inlet flue duct, described economizer ash-transmission system comprises transmitter group, one outlet valve, compressed air source unit and supporting transfer pipeline, described transmitter group comprises the transmitter of a plurality of series connection, described each transmitter hangs respectively the below that is formed at corresponding economizer hopper, between described each transmitter and corresponding economizer hopper, be also respectively arranged with an inlet valve, described outlet valve is arranged on the transfer pipeline of described transmitter group outlet, described compressed air source unit provides transmitting power for the flying dust in transfer pipeline.
Preferably, in above-mentioned suspension type economizer ash-transmission system, described each transmitter by hanger suspending in the below of corresponding economizer hopper.
Preferably, in above-mentioned suspension type economizer ash-transmission system, between described each transmitter and corresponding economizer hopper, be also provided with manual access door.
Preferably, in above-mentioned suspension type economizer ash-transmission system, described compressed air source unit comprises air accumulator, is provided with intake valve group on the transfer pipeline between described air accumulator and transmitter.
Preferably, in above-mentioned suspension type economizer ash-transmission system, on the transfer pipeline between described air accumulator and transmitter, be also provided with aeration valve group.
Preferably, in above-mentioned suspension type economizer ash-transmission system, on the transfer pipeline of described transmitter group outlet, be arranged at intervals with along journey tonifying Qi point, each comprises a check valve and an air distributing device along journey tonifying Qi point, and described air accumulator blows valve group and is connected in described check valve and air distributing device by helping.
Preferably, in above-mentioned suspension type economizer ash-transmission system, described adjacent two is 2 ~ 3 meters along the spacing between journey tonifying Qi point.
Preferably, in above-mentioned suspension type economizer ash-transmission system, described transmitter is T-shaped transmitter.
Preferably, in above-mentioned suspension type economizer ash-transmission system, it is double-gate plate valve at least partly that described inlet valve, outlet valve, intake valve group, aeration valve group and helping blown valve used in valve group.
Compared with prior art, advantage of the present invention is at least:
1, system configuration is succinct
System inner rotatable part is few, and adopts double-gate plate valve as the main valve of air-transport system; System operation mode is flexible and changeable, and continuously-running also can periodic operation.
2, low, the grey gas of system discharge pressure is than high
System adopts high density, low-pressure concentrated phase to carry, and consumes less compressed air and can carry more material, carries grey gas higher.
3, conveying energy consumption is low
Because the air supply that conveying waits material to need is less, and discharge pressure is lower, so conveying energy consumption is far below the air-transport system of other form.
4, system carries flow velocity low
System carries flow velocity lower, and initial velocity is about 2 ~ 4m/s, and end speed can be controlled in 10 ~ 12m/s.
5, pipe wear is little
Because the pipe wear that strength is carried is proportional with the cube of conveying flow velocity, native system adopts high grey gas ratio and lower transporting velocity, greatly reduces the wearing and tearing of pipeline, valve etc.Elbow adopts larger radius of curvature simultaneously, and the resistance of ducting is little, weares and teares also little.
6, feed-line is few
Transmitter adopts series winding form, and conveyance conduit is reasonable, and flexible arrangement is few to site requirements.
7, system small investment, year operation and maintenance cost is low
Transmitter is suspended to economizer hopper below, and the setting height(from bottom) of requirement is lower.And because the wearing and tearing of equipment, pipeline etc. are little, repair and maintenance amount is few, system energy consumption is low, only needs lower expense just can guarantee security of system reliability service.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Figure 1 shows that the principle schematic of suspension type economizer ash-transmission system in the specific embodiment of the invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is described in detail, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belongs to the scope of protection of the invention.
Shown in ginseng Fig. 1, suspension type economizer ash-transmission system is provided with many T-shaped transmitters 4, and the quantity of T-shaped transmitter 4 is preferably 2 ~ 6.Each T-shaped transmitter 4 hangs by suspension bracket 3 below that is formed at corresponding economizer hopper A respectively.
Each transmitter 4 charging aperture is established a manual access door 1, a high temperature resistant inlet valve 2, and high temperature resistant outlet valve 5 is equipped with in the outlet of last transmitter 4.
Air inlet, tonifying Qi before transmitter, help and intake valve group 7, aeration valve group 8 are housed respectively on blowing compressed air pipeline, help and blow valve group 9, aeration valve group 8 is connected in the air compensation ring 6 on pipeline.Transfer pipeline starts from the outlet of last transmitter, establishes one along journey tonifying Qi point every 2 ~ 3 meters, and till grey storehouse B, each is equipped with a check valve 11 and an air distributing device 12 along journey tonifying Qi point.
Aerodynamic force required in transfer pipeline derives from compressed air source unit, and compressed air source unit comprises air accumulator 10, and air accumulator 10 is connected to intake valve group 7, aeration valve group 8 and helps and blow valve group 9, helps to blow valve group 9 and be connected in check valve 11 and air distributing device 12.
It is double-gate plate valve at least partly that inlet valve, outlet valve, intake valve group, aeration valve group and helping blown valve used in valve group.In figure, shown in C, be compressed air source direction again.
System operational process is:
A. before system operation, first initialize adjustment (all valves, in closed condition, carry source of the gas and instrument to use bleed pressure higher than the pressure of setting);
B. inlet valve is opened, and material enters transmitter to level-sensing device action the time of setting (or reach), and inlet valve cuts out, time delay 3～5 seconds, and so far fill process finishes;
C. open outlet valve, open intake valve group, aeration valve group and help and blow valve group, carry air to import transmitter, start to carry; When the discharge pressure of transfer pipeline drops to setting pressure (being generally 0.03MPa, on-the-spot adjustable), close intake valve group, aeration valve group and help and blow valve group, so far course of conveying finishes;
D. time delay, after 3～5 seconds, is closed outlet valve, and system prepares to enter circulation next time.
It should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
The above is only the specific embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a suspension type economizer ash-transmission system, in order to by the fly ash carry in economizer hopper to grey storehouse or electric precipitation inlet flue duct, it is characterized in that: described economizer ash-transmission system comprises transmitter group, one outlet valve, compressed air source unit and supporting transfer pipeline, described transmitter group comprises the transmitter of a plurality of series connection, described each transmitter hangs respectively the below that is formed at corresponding economizer hopper, between described each transmitter and corresponding economizer hopper, be also respectively arranged with an inlet valve, described outlet valve is arranged on the transfer pipeline of described transmitter group outlet, described compressed air source unit provides transmitting power for the flying dust in transfer pipeline.
2. suspension type economizer ash-transmission system according to claim 1, is characterized in that: described each transmitter by hanger suspending in the below of corresponding economizer hopper.
3. suspension type economizer ash-transmission system according to claim 1, is characterized in that: between described each transmitter and corresponding economizer hopper, be also provided with manual access door.
4. suspension type economizer ash-transmission system according to claim 1, is characterized in that: described compressed air source unit comprises air accumulator, is provided with intake valve group on the transfer pipeline between described air accumulator and transmitter.
5. suspension type economizer ash-transmission system according to claim 4, is characterized in that: on the transfer pipeline between described air accumulator and transmitter, be also provided with aeration valve group.
6. suspension type economizer ash-transmission system according to claim 5, it is characterized in that: on the transfer pipeline of described transmitter group outlet, be arranged at intervals with along journey tonifying Qi point, each comprises a check valve and an air distributing device along journey tonifying Qi point, and described air accumulator blows valve group and is connected in described check valve and air distributing device by helping.
7. suspension type economizer ash-transmission system according to claim 6, is characterized in that: described adjacent two is 2 ~ 3 meters along the spacing between journey tonifying Qi point.
8. suspension type economizer ash-transmission system according to claim 1, is characterized in that: described transmitter is T-shaped transmitter.
9. suspension type economizer ash-transmission system according to claim 6, is characterized in that: described inlet valve, outlet valve, intake valve group, aeration valve group and help that to blow valve used in valve group be double-gate plate valve at least partly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602230.0A CN103604131B (en) | 2013-11-25 | 2013-11-25 | Suspension type economizer ash-transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602230.0A CN103604131B (en) | 2013-11-25 | 2013-11-25 | Suspension type economizer ash-transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103604131A true CN103604131A (en) | 2014-02-26 |
| CN103604131B CN103604131B (en) | 2016-01-13 |
Family
ID=50122379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310602230.0A Expired - Fee Related CN103604131B (en) | 2013-11-25 | 2013-11-25 | Suspension type economizer ash-transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103604131B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528386A (en) * | 2014-12-03 | 2015-04-22 | 镇江市电站辅机厂有限公司 | Pneumatic conveying system of fly ash of dust collector |
| CN108626727A (en) * | 2018-05-09 | 2018-10-09 | 叶世雄 | A kind of medical refuse burning device |
| CN113042213A (en) * | 2021-03-09 | 2021-06-29 | 浙江菲达环保科技股份有限公司 | Collaborative control method and system for electric dust removal system and ash conveying system |
| CN113060557A (en) * | 2021-03-26 | 2021-07-02 | 大唐洛阳首阳山发电有限责任公司 | Method for improving positive pressure concentrated phase ash conveying system output and optimizing ash conveying operation |
| CN114194834A (en) * | 2021-12-23 | 2022-03-18 | 国家能源集团谏壁发电厂 | Novel non-rigid expansion joint |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100040422A1 (en) * | 2008-08-14 | 2010-02-18 | United Conveyor Corporation | High-efficiency material inlet with particulate diffuser plate for use in entraining particulate solids in a prime mover fluid |
| CN201462868U (en) * | 2009-06-01 | 2010-05-12 | 上海锅炉厂有限公司 | Ash hopper of coal economizer |
| CN102120142A (en) * | 2010-12-22 | 2011-07-13 | 浙江天蓝环保技术有限公司 | Direct injection ash supplying device in dry powder desulfurizing agent tower |
| CN202082939U (en) * | 2011-03-31 | 2011-12-21 | 河北省电力勘测设计研究院 | Fly ash conveying mechanism of boiler economizer |
| CN203549863U (en) * | 2013-11-25 | 2014-04-16 | 镇江市电站辅机厂有限公司 | Suspended type economizer ash conveying system |
-
2013
- 2013-11-25 CN CN201310602230.0A patent/CN103604131B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100040422A1 (en) * | 2008-08-14 | 2010-02-18 | United Conveyor Corporation | High-efficiency material inlet with particulate diffuser plate for use in entraining particulate solids in a prime mover fluid |
| CN201462868U (en) * | 2009-06-01 | 2010-05-12 | 上海锅炉厂有限公司 | Ash hopper of coal economizer |
| CN102120142A (en) * | 2010-12-22 | 2011-07-13 | 浙江天蓝环保技术有限公司 | Direct injection ash supplying device in dry powder desulfurizing agent tower |
| CN202082939U (en) * | 2011-03-31 | 2011-12-21 | 河北省电力勘测设计研究院 | Fly ash conveying mechanism of boiler economizer |
| CN203549863U (en) * | 2013-11-25 | 2014-04-16 | 镇江市电站辅机厂有限公司 | Suspended type economizer ash conveying system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528386A (en) * | 2014-12-03 | 2015-04-22 | 镇江市电站辅机厂有限公司 | Pneumatic conveying system of fly ash of dust collector |
| CN108626727A (en) * | 2018-05-09 | 2018-10-09 | 叶世雄 | A kind of medical refuse burning device |
| CN113042213A (en) * | 2021-03-09 | 2021-06-29 | 浙江菲达环保科技股份有限公司 | Collaborative control method and system for electric dust removal system and ash conveying system |
| CN113042213B (en) * | 2021-03-09 | 2024-01-30 | 浙江菲达环保科技股份有限公司 | Cooperative control method and system for electric dust removal system and ash conveying system |
| CN113060557A (en) * | 2021-03-26 | 2021-07-02 | 大唐洛阳首阳山发电有限责任公司 | Method for improving positive pressure concentrated phase ash conveying system output and optimizing ash conveying operation |
| CN114194834A (en) * | 2021-12-23 | 2022-03-18 | 国家能源集团谏壁发电厂 | Novel non-rigid expansion joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103604131B (en) | 2016-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103604131B (en) | Suspension type economizer ash-transmission system | |
| CN104528386A (en) | Pneumatic conveying system of fly ash of dust collector | |
| CN203857473U (en) | Ash discharge delivery system of coal economizer | |
| CN203682609U (en) | Pneumatic dust delivery device of boiler electric dust precipitation system | |
| CN110503250A (en) | Consider the probabilistic integrated energy planning method of electric-thermal transfer load transfer amount | |
| CN108657822A (en) | A kind of mud positive pneumatic conveying system | |
| CN205090388U (en) | Economizer ash merges conveying system with dust remover ash | |
| CN203549863U (en) | Suspended type economizer ash conveying system | |
| CN204675383U (en) | A kind of adjustable air-transport system of exerting oneself | |
| CN103950730A (en) | Energy saving control method of thermal power plant pneumatic ash conveying system | |
| CN105110015A (en) | Pneumatic force slag removal conveying system | |
| CN103274216A (en) | Cabin-pump-free numerical-control dense-phase pneumatic ash conveying system | |
| CN105858270A (en) | Pneumatic shipping system for wharf fly ash | |
| CN205294336U (en) | Pier flying dust strength shipment equipment | |
| CN204777658U (en) | Economizer ash conveying system | |
| CN202481759U (en) | Ash-conveying capacity expansion device adapting to coal-fired power plant mass ash | |
| CN203187102U (en) | Micro-silicon density increasing device | |
| CN204675149U (en) | A kind of dust conveying system blockage-eliminating device | |
| CN205011034U (en) | Strength slagging -off conveying system | |
| CN101913502A (en) | Pneumatic ash conveying spiral material sealing pump | |
| CN103723519A (en) | Coal ash collecting and delivery method | |
| CN206927271U (en) | The Anti-blocking structure of Industrial Boiler electric precipitation pneumatic ash transmitting system | |
| CN102398784A (en) | In-plant zero-distance tooth rope type pulverized fuel ash conveying system | |
| CN203155672U (en) | Dust zero discharge concentrated treatment device for concrete mixing plant | |
| CN203533582U (en) | Fly ash separating and conveying system for coal economizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181224 Address after: Room 302, 301 Hanzhongmen Street, Gulou District, Nanjing City, Jiangsu Province Patentee after: Jiangsu niupulan Energy Environment Technology Co Ltd Address before: 212200 No. 261 Yangzi Middle Road, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee before: Zhenjiang City Power Station Auxiliary Machinery Plant Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20191125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |