CN106743675A - A kind of pneumatic ash conveying pipe system for economizer - Google Patents
A kind of pneumatic ash conveying pipe system for economizer Download PDFInfo
- Publication number
- CN106743675A CN106743675A CN201510801405.XA CN201510801405A CN106743675A CN 106743675 A CN106743675 A CN 106743675A CN 201510801405 A CN201510801405 A CN 201510801405A CN 106743675 A CN106743675 A CN 106743675A
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- China
- Prior art keywords
- ash
- conveying pipe
- economizer
- expansion joint
- pneumatic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The invention discloses a kind of pneumatic ash conveying pipe system for economizer, include pneumatic pipe, ash conveying pipe in pneumatic ash transmitting system, storehouse pump is provided with by pipeline on ash conveying pipe, storehouse pump is connected with automatic discharging valve, expansion joint is connected with automatic discharging valve, manually discharge valve is connected with economizer hopper on expansion joint, and Y type jacket heat-preservation piping filters are provided between described expansion joint and automatic discharging valve, and filter screen mesh number is 2.5 mesh or 3 mesh.Line strainer is installed additional between manual discharge valve and expansion joint, collection ash in economizer hopper is filtered, larger char particle, coke button or foreign matter are stayed on filter screen, and other ashes enter the pump that puts in storage by automatic leak valve, ash is sent into by grey storehouse by strength again, when cleaning is needed, as long as dismountable filter cylinder is taken out, after cleaning out the larger char particle of filtering, coke button or foreign matter, reload, working service extremely convenient, reduces repair and maintenance amount, and improve the reliability of ash-transmission system.
Description
Technical field
The present invention relates to the economizer of thermal power generation station-service, specifically a kind of pneumatic ash conveying pipe system for economizer.
Background technology
The economizer pneumatic ash transmitting system that current thermal power plant uses economizer hopper 1, manual discharge valve 2, expansion joint 3, automatic discharging valve 4, storehouse pump 5, pneumatic pipe 9, ash conveying pipe 10 as shown in figure 1, be made up of.Change flow of flue gas direction when boiler flue flue gas is by economizer hopper 1, bulky grain flying dust falls into economizer hopper 1 by centrifugal force, and under the control of defeated ash handing system, each storehouse pump 5 falls after ash the bulky grain flying dust of collection successively, unification is delivered to grey storehouse.
Because coal varitation or personnel adjust the factor such as improper, flue coking dust stratification will be caused, in order to ensure back-end ductwork duct cleaning, increases heat-transfer effect, improve boiler efficiency, soot blowing is carried out to flue by irregular, this causes to contain larger char particle, coke button or foreign matter in flying dust, collects in economizer hopper, larger char particle, coke button or foreign matter enter the pump that puts in storage, ash conveying pipe, blocking in storehouse pump bottom or ash pipeline is easily caused, the reliability of ash-transmission system is influenceed, increases repair and maintenance amount.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of pneumatic ash conveying pipe system for economizer.
For this technical scheme is that：A kind of pneumatic ash conveying pipe system for economizer, including pneumatic ash transmitting system, include pneumatic pipe, ash conveying pipe in pneumatic ash transmitting system, storehouse pump is provided with by pipeline on ash conveying pipe, storehouse pump is connected with automatic discharging valve, expansion joint is connected with automatic discharging valve, manually discharge valve is connected with economizer hopper on expansion joint, it is characterised in that：Piping filter is provided between described expansion joint and automatic discharging valve.
Further improve and be：Piping filter is externally provided with jacket heat-preservation layer.
Further improve and be：The piping filter is a body for insertion, and body is respectively arranged at two ends with flange one and flange two；There is filter screen from the side wall oblique cutting of body, the direction of filter screen is upward, and the Y-shaped structure of body, wherein part of the filter screen in body is screen pack, and filter screen protruded tube is provided with flange three in vitro.
Further improve and be：The filter screen mesh number is 2.5 mesh or 3 mesh.
Beneficial effect：
The present invention installs piping filter additional between manual discharge valve and expansion joint, collection ash in economizer hopper is filtered, larger char particle, coke button or foreign matter are stayed on filter screen, and other ashes enter the pump that puts in storage by automatic leak valve, then by strength by ash feeding ash storehouse.
Piping filter can be eliminated because larger char particle, coke button or foreign matter enter to put in storage pump or ash conveying pipe causes ash-transmission system to block with periodic cleaning, causes ash-transmission system frequently to overhaul block clearing, can save substantial amounts of manpower and materials；The risk that economizer hopper causes big quantity set ash due to defeated ash not in time is reduced simultaneously, improves economizer pneumatic ash transmitting system operational reliability.
The setting of jacket heat-preservation layer protects piping filter not radiate, does not waste.
Flange one and flange two are connected with upper and lower pipeline respectively, the filter screen of Y-shaped structure, while filtering is played, have been also convenient for cleaning, the setting easy cleaning of flange three.
When the piping filter needs cleaning, as long as dismountable filter cylinder is taken out, after cleaning out the larger char particle of filtering, coke button or foreign matter, reload, working service extremely convenient, reduce repair and maintenance amount, and improve the reliability of ash-transmission system.
Brief description of the drawings
Fig. 1 is the economizer pneumatic ash conveying pipe system connection diagram without piping filter.
Fig. 2 is economizer pneumatic ash conveying pipe system connection diagram of the invention.
Fig. 3 is the enlarged diagram of piping filter 8 in Fig. 2.
1 is economizer hopper in figure, and 2 is manual discharge valve, and 3 is expansion joint, 4 is automatic discharging valve, and 5 is storehouse pump, and 6 is larger char particle in economizer hopper collection ash, coke button or foreign matter, 7 is larger char particle, coke button or foreign matter, and 8 is piping filter, and 80 is body, 81 is jacket heat-preservation layer, and 82 is flange one, and 83 is flange two, 84 is filter screen, 85 is flange three, and 9 is pneumatic pipe, 10 ash conveying pipes.
Specific embodiment
The present invention as shown in Figure 2,3,
A kind of pneumatic ash conveying pipe system for economizer, including pneumatic ash transmitting system, include pneumatic pipe 9, ash conveying pipe 10 in pneumatic ash transmitting system, storehouse pump 5 is provided with by pipeline on ash conveying pipe 10, storehouse pump 5 is connected with automatic discharging valve 4, expansion joint 3 is connected with automatic discharging valve 4, manually discharge valve 2 is connected with economizer hopper 1 on expansion joint 3, piping filter 8 is provided between described expansion joint 3 and automatic discharging valve 4.
Piping filter 8 is externally provided with jacket heat-preservation layer 81.
The piping filter 8 is the body 80 of insertion, and body 80 is respectively arranged at two ends with flange 1 and flange 2 83；There is filter screen 84 from the side wall oblique cutting of body 80, the direction of filter screen 84 is upward, and the Y-shaped structure of body 80, wherein part of the filter screen 84 in body 80 is screen pack, and filter screen protruded tube is provided with flange 3 85 in vitro.
The mesh number of filter screen 84 of piping filter 8 is 2.5 mesh or 3 mesh.
Larger char particle, coke button or foreign matter 6 pass through control system in the economizer hopper collection ash of economizer hopper 1, enter piping filter 8 by manual discharge valve 2, ash to conveying is filtered, larger char particle, coke button or foreign matter 7 are stayed on piping filter 8, other ashes enter the pump that puts in storage by automatic leak valve, then ash is sent into grey storehouse by strength.
The piping filter 8 is thermal-insulating type, the mesh number of filter screen 84 is 2.5 mesh or 3 mesh, when cleaning is needed, as long as dismountable filter screen 84 is taken out, the larger char particle of filtering, coke button or foreign matter 7 are cleaned out, is reloaded, working service extremely convenient, repair and maintenance amount is reduced, and improves the reliability of ash-transmission system.
Jacket heat-preservation type piping filter 8 can in the light of actual conditions be customized, and insulation can prevent the ash cooling of conveying, improve the mobility of ash, subtract filter screen dust stratification.
Claims (4)
1. a kind of pneumatic ash conveying pipe system for economizer, including pneumatic ash transmitting system, include pneumatic pipe, ash conveying pipe in pneumatic ash transmitting system, storehouse pump is provided with by pipeline on ash conveying pipe, storehouse pump is connected with automatic discharging valve, expansion joint is connected with automatic discharging valve, manually discharge valve is connected with economizer hopper on expansion joint, it is characterised in that：Piping filter is provided between described expansion joint and automatic discharging valve.
2. a kind of pneumatic ash conveying pipe system for economizer according to claim 1, it is characterised in that：Piping filter is externally provided with jacket heat-preservation layer.
3. a kind of pneumatic ash conveying pipe system for economizer according to claim 1 and 2, it is characterised in that：The piping filter is a body for insertion, and body is respectively arranged at two ends with flange one and flange two；There is filter screen from the side wall oblique cutting of body, the direction of filter screen is upward, and the Y-shaped structure of body, wherein part of the filter screen in body is screen pack, and filter screen protruded tube is provided with flange three in vitro.
4. a kind of pneumatic ash conveying pipe system for economizer according to claim 3, it is characterised in that：The filter screen mesh number of the piping filter is 2.5 mesh or 3 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510801405.XA CN106743675A (en) | 2015-11-19 | 2015-11-19 | A kind of pneumatic ash conveying pipe system for economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510801405.XA CN106743675A (en) | 2015-11-19 | 2015-11-19 | A kind of pneumatic ash conveying pipe system for economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106743675A true CN106743675A (en) | 2017-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510801405.XA Pending CN106743675A (en) | 2015-11-19 | 2015-11-19 | A kind of pneumatic ash conveying pipe system for economizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN106743675A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143862A (en) * | 2017-06-27 | 2017-09-08 | 淮安中科环保电力有限公司 | Circulating fluid bed garbage furnace low temperature superheater ash conveying device and method |
| CN107285039A (en) * | 2017-06-26 | 2017-10-24 | 华电电力科学研究院 | A kind of Pneumatic ash conveying method and device of thermal power plant's Level control |
-
2015
- 2015-11-19 CN CN201510801405.XA patent/CN106743675A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107285039A (en) * | 2017-06-26 | 2017-10-24 | 华电电力科学研究院 | A kind of Pneumatic ash conveying method and device of thermal power plant's Level control |
| CN107143862A (en) * | 2017-06-27 | 2017-09-08 | 淮安中科环保电力有限公司 | Circulating fluid bed garbage furnace low temperature superheater ash conveying device and method |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |