CN114194834A - Novel non-rigid expansion joint - Google Patents
Novel non-rigid expansion joint Download PDFInfo
- Publication number
- CN114194834A CN114194834A CN202111590768.5A CN202111590768A CN114194834A CN 114194834 A CN114194834 A CN 114194834A CN 202111590768 A CN202111590768 A CN 202111590768A CN 114194834 A CN114194834 A CN 114194834A
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- China
- Prior art keywords
- expansion joint
- economizer
- valve
- feeding device
- rigid
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Classifications
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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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- 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
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/06—Gas pressure systems operating without fluidisation of the materials
- B65G53/10—Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas
- B65G53/12—Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas the gas flow acting directly on the materials in a reservoir
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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
- B65G53/40—Feeding or discharging devices
Abstract
The invention relates to the technical field of an ash conveying system of an economizer, in particular to a novel non-rigid expansion joint. Comprises a coal economizer, an upper feeding device, an expansion joint, a lower feeding device, a sending tank and a discharging device; the coal economizer, the upper feeding device, the expansion joint, the lower feeding device, the sending tank and the discharging device are sequentially connected; the surface of the sending tank is also provided with an operation dial. The invention aims to provide a novel non-rigid expansion joint aiming at the defects in the prior art, so that the dust can be effectively controlled through the arrangement and the function of a field device system under the condition of failure or emergency of an ash conveying system.
Description
Technical Field
The invention relates to the technical field of an ash conveying system of an economizer, in particular to a novel non-rigid expansion joint.
Background
The coal economizer sending tank has very important significance in the ash conveying system, is connected to the lower part of an ash hopper of the coal economizer, conveys ash powder in the coal economizer to an ash warehouse through compressed air, and a coal economizer discharging cloth bag is a junction between the ash hopper and the sending tank.
In recent years, the failure rate of a double-sleeve soot blowing system of an economizer is high, and economic and safe operation of equipment is seriously influenced. The breakage rate of the coal economizer discharging cloth bag is the highest, and the utilization rate of the system unit is reduced. The ash hopper ash conveying system of the coal economizer has the advantages that ash leakage often occurs in the ash conveying process, a large amount of ash powder flows to the coal economizer platform, the accumulated ash powder has great potential safety hazards, the safe and stable operation of the ash blowing system is influenced, and meanwhile serious dust pollution is caused.
In view of the above problems, the present designer is based on the practical experience and professional knowledge that are abundant for many years in engineering application of such products, and is engaged with the application of theory, and actively makes research and innovation, so as to design a novel non-rigid expansion joint, and achieve the effect of effectively controlling dust emission through the arrangement and function of the field device system in case of failure or emergency of the dust conveying system.
Disclosure of Invention
The invention aims to provide a novel non-rigid expansion joint aiming at the defects in the prior art, so that the dust can be effectively controlled through the arrangement and the function of a field device system under the condition of failure or emergency of an ash conveying system.
In order to achieve the aim, the technical scheme adopted by the invention is a novel non-rigid expansion joint, which comprises a coal economizer, an upper feeding device, an expansion joint, a lower feeding device, a sending tank and a discharging device; the coal economizer, the upper feeding device, the expansion joint, the lower feeding device, the sending tank and the discharging device are sequentially connected; the surface of the sending tank is also provided with an operation dial.
Furthermore, the expansion joint is flexible rubber, and flat welding flanges are arranged on the upper portion and the lower portion of the expansion joint.
Further, still include the flashboard door, the flashboard door sets up in the economizer with go up between the feed valve.
Further, the upper feeding device is an upper feeding valve.
Further, the lower feeding device is a lower feeding valve.
Further, an air inlet valve is arranged outside the sending tank.
Further, a ventilation pipeline is connected between the sending tank and the economizer.
Further, an air permeable valve is arranged on the air permeable pipeline.
Further, the discharging device is a discharging valve.
Furthermore, every two tank bodies of the sending tank are connected with one discharging device.
Through the technical scheme of the invention, the following technical effects can be realized:
the dust raising device has the advantages that the dust raising device is sequentially connected with the coal economizer, the upper feeding device, the expansion joint, the lower feeding device, the sending tank and the discharging device, the surface of the sending tank is also provided with the operation dial, the expansion joint is flexible rubber, the expansion joint is also provided with the flat welding flange, the discharging device is a discharging valve, and every two tank bodies of the sending tank are connected with one discharging device, so that the dust raising effect can be effectively achieved through the arrangement and the function of a field equipment system under the condition of the fault or the emergency of a dust conveying system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a novel non-rigid expansion joint in accordance with an embodiment of the present invention.
Reference numerals: the coal economizer comprises an economizer 1, an upper feeding device 2, an expansion joint 3, a lower feeding device 4, a sending tank 5, an operation dial 51, an inlet valve 52, a discharging device 6, a flashboard door 7, a ventilation pipeline 8 and a ventilation valve 81.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
A novel non-rigid expansion joint is shown in figure 1 and comprises an economizer 1, an upper feeding device 2, an expansion joint 3, a lower feeding device 4, a sending tank 5 and a discharging device 6; the coal economizer 1, the upper feeding device 2, the expansion joint 3, the lower feeding device 4, the sending tank 5 and the discharging device 6 are sequentially connected in sequence; the surface of the sending pot 5 is also provided with an operation dial 51.
As shown in fig. 1, the expansion joint 3 is preferably made of flexible rubber, and the expansion joint 3 is further provided with flat welding flanges at the upper and lower parts.
Concretely, through the economizer, upper portion feed arrangement, the expansion joint, lower part feed arrangement, connect gradually in proper order between sending jar and the discharging device, it still is provided with the operation dial plate to send a jar surface, the expansion joint is for can winding rubber, the expansion joint still is provided with the structure of flat welding flange from top to bottom, with through thermotechnical service personnel, QC group personnel, the operating personnel, the operation special worker, the maintenance special worker is mutually supported, carry out the air-blowing test once, show on the inspection operation dial plate and send jar internal pressure and have pressure before and compare whether descend to some extent. And calculating the height of the metal short circuit to be added according to the height of the original cloth bag short circuit on site and the height of the flexible rubber short circuit. And 2 DN150 flat welding flanges are welded on DN150 metal short pipes in cooperation with an electric welder, and the height of each metal short pipe is the previously calculated height. The 1101-1204 sending tank is respectively stopped using, and the original cloth bag short circuit is replaced by a flexible rubber short circuit and a metal short circuit. Therefore, the bearing capacity of the ash conveying metal short joint of the ash hopper of the economizer is enhanced, the ash conveying pipeline is optimized, the trend of the ash conveying pipeline is reasonable, and meanwhile, the smooth passage is ensured. Therefore, the system processing and other main technical data all meet the design requirements, and the ash conveying is normal.
As shown in fig. 1, the economizer preferably further includes a damper door 7, and the damper door 7 is disposed between the economizer 1 and the upper feed valve 2.
Specifically, a structure is provided between the economizer and the upper feed valve through a shutter door for closing a passage between the economizer 1 and the upper feed valve 2 when not in use.
Preferably, as shown in fig. 1, the upper feeding device 2 is an upper feeding valve.
Preferably, as shown in fig. 1, the lower feeding device 4 is a lower feeding valve.
As a preferable example of the above embodiment, as shown in fig. 1, the canister 5 is provided with an intake valve 52.
As a preferred embodiment of the above embodiment, as shown in fig. 1, a ventilation line 8 is further connected between the sending tank 5 and the economizer 1.
As shown in fig. 1, the ventilation line 8 is preferably further provided with a ventilation valve 81.
Specifically, still be connected with ventilative pipeline, the structure that still is provided with the breather valve on the ventilative pipeline through sending between jar and the economizer to be used for adjusting the compressed air pressure that gets into and send the jar through the air-vent valve, and then control the unobstructed degree that the ash powder was carried, stabilize air supply pressure. The discharge valve is an outlet door of the sending tank, and the conveying unit discharges materials; the ventilation valve is installed on sending the jar, for sending the exhaust valve of jar, and its effect is after compressed air gets into to send jar transport ash, opens the ventilation valve and releases and send jar internal pressure, avoids producing the hindrance to the re-feeding. The feeding valve is arranged above the sending tank and is an inlet door of the sending tank for controlling the amount of the ash powder entering the sending tank.
As a preferred example of the above embodiment, as shown in fig. 1, the discharging device 6 is a discharging valve.
As a preferred example of the above embodiment, as shown in fig. 1, the sending tank 5 is connected to the discharging device 6 every two tank bodies.
The material conveying device comprises a conveying tank, a discharging device, a balance valve, a discharging device and a conveying tank, wherein the discharging device is a structure that the discharging device is connected with every two tank bodies of the discharging valve and the conveying tank, so that materials can enter the conveying tank through the special feeding valve when the conveying tank stores and conveys media, gas in the conveying tank is released through the balance valve, feeding convenience is achieved, and the effect of blocking reverse pressure of material flowing is eliminated.
Specifically, the economizer, the upper feeding device, the expansion joint, the lower feeding device, the sending tank and the discharging device are sequentially connected, the surface of the sending tank is further provided with an operation dial, the expansion joint is made of flexible rubber, the expansion joint is further provided with flat welding flanges up and down, the discharging device is a discharging valve, and every two tank bodies of the sending tank are connected with one discharging device. The original cloth bag connection is replaced by the flexible rubber short connection and the metal hard connection, the short connection pressure resistance is improved, and the problems that an economizer discharging cloth bag in the prior art is prone to being punctured and scalded by sundries such as iron wires in ash powder due to high temperature in the economizer in the discharging process of the economizer cloth bag, the cloth bag is broken by pressure existing inside due to incomplete ventilation at the moment of opening a lower feeding valve, and the breakage defect frequency of the economizer discharging cloth bag is frequent due to tearing caused by thermal expansion and cold contraction of a pipeline are solved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A novel non-rigid expansion joint is characterized by comprising a coal economizer (1), an upper feeding device (2), an expansion joint (3), a lower feeding device (4), a sending tank (5) and a discharging device (6); the coal economizer (1), the upper feeding device (2), the expansion joint (3), the lower feeding device (4), the sending tank (5) and the discharging device (6) are sequentially connected; the surface of the sending tank (5) is also provided with an operation dial (51).
2. The novel non-rigid expansion joint as claimed in claim 1, wherein the expansion joint (3) is a flexible rubber, and the expansion joint (3) is further provided with flat welding flanges at the upper and lower parts.
3. The new non-rigid expansion joint according to claim 1, characterized by further comprising a shutter door (7), said shutter door (7) being arranged between said economizer (1) and said upper intake valve (2).
4. A new type of non-rigid expansion joint according to claim 3, characterized in that the upper feed means (2) is an upper feed valve.
5. A new type of non-rigid expansion joint according to claim 3, characterized in that the lower feed means (4) is a lower feed valve.
6. A new type of non-rigid expansion joint according to claim 1, characterized in that the sending tank (5) is provided with an inlet valve (52) in addition.
7. A new type of non-rigid expansion joint according to claim 4, characterized in that a gas-permeable line (8) is also connected between the sending tank (5) and the economizer (1).
8. The novel non-rigid expansion joint according to claim 1, characterized in that the ventilation line (8) is further provided with a ventilation valve (81).
9. A new type of non-rigid expansion joint according to claim 1, characterized in that the discharge device (6) is a discharge valve.
10. A new type of non-rigid expansion joint according to claim 9, characterized in that said delivery tank (5) is connected to one said outlet means (6) per two tanks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111590768.5A CN114194834A (en) | 2021-12-23 | 2021-12-23 | Novel non-rigid expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111590768.5A CN114194834A (en) | 2021-12-23 | 2021-12-23 | Novel non-rigid expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114194834A true CN114194834A (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111590768.5A Pending CN114194834A (en) | 2021-12-23 | 2021-12-23 | Novel non-rigid expansion joint |
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| CN (1) | CN114194834A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080229985A1 (en) * | 2004-07-09 | 2008-09-25 | Mario Magaldi | Integrated System For the Extraction of Heavy Ash, Conversion Thereof Into Light Ash and Reduction of Unburnt Matter |
| CN201582523U (en) * | 2009-10-12 | 2010-09-15 | 深圳市彩阳电力技术有限公司 | Nonmetal expansion joint used for gas coal transportation pipeline |
| CN103604131A (en) * | 2013-11-25 | 2014-02-26 | 镇江市电站辅机厂有限公司 | Suspension-type economizer ash conveying system |
| US20140203038A1 (en) * | 2011-09-05 | 2014-07-24 | Electric Power Development Co., Ltd. | Powder supply device and powder supply method |
| CN203857473U (en) * | 2014-04-02 | 2014-10-01 | 河北省电力勘测设计研究院 | Ash discharge delivery system of coal economizer |
| CN104515138A (en) * | 2014-12-24 | 2015-04-15 | 山西蓝天环保设备有限公司 | Deslagging device applicable to coal powder industrial boiler |
| CN204433807U (en) * | 2014-12-18 | 2015-07-01 | 河北省电力勘测设计研究院 | A kind of economizer ash discharge transport path switches and control system |
| CN206552839U (en) * | 2017-03-16 | 2017-10-13 | 天津华电科工环保技术有限公司 | A kind of economizer mixing and conveying system |
| CN207195884U (en) * | 2017-09-30 | 2018-04-06 | 云南大红山管道有限公司 | A kind of pressure pipeline bend pipe installation detecting device easy to wear |
-
2021
- 2021-12-23 CN CN202111590768.5A patent/CN114194834A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080229985A1 (en) * | 2004-07-09 | 2008-09-25 | Mario Magaldi | Integrated System For the Extraction of Heavy Ash, Conversion Thereof Into Light Ash and Reduction of Unburnt Matter |
| CN201582523U (en) * | 2009-10-12 | 2010-09-15 | 深圳市彩阳电力技术有限公司 | Nonmetal expansion joint used for gas coal transportation pipeline |
| US20140203038A1 (en) * | 2011-09-05 | 2014-07-24 | Electric Power Development Co., Ltd. | Powder supply device and powder supply method |
| CN103604131A (en) * | 2013-11-25 | 2014-02-26 | 镇江市电站辅机厂有限公司 | Suspension-type economizer ash conveying system |
| CN203857473U (en) * | 2014-04-02 | 2014-10-01 | 河北省电力勘测设计研究院 | Ash discharge delivery system of coal economizer |
| CN204433807U (en) * | 2014-12-18 | 2015-07-01 | 河北省电力勘测设计研究院 | A kind of economizer ash discharge transport path switches and control system |
| CN104515138A (en) * | 2014-12-24 | 2015-04-15 | 山西蓝天环保设备有限公司 | Deslagging device applicable to coal powder industrial boiler |
| CN206552839U (en) * | 2017-03-16 | 2017-10-13 | 天津华电科工环保技术有限公司 | A kind of economizer mixing and conveying system |
| CN207195884U (en) * | 2017-09-30 | 2018-04-06 | 云南大红山管道有限公司 | A kind of pressure pipeline bend pipe installation detecting device easy to wear |
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