CN205859980U - A kind of for power plant boiler low low-level (stack-gas) economizer modular device - Google Patents
A kind of for power plant boiler low low-level (stack-gas) economizer modular device Download PDFInfo
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- CN205859980U CN205859980U CN201620788378.7U CN201620788378U CN205859980U CN 205859980 U CN205859980 U CN 205859980U CN 201620788378 U CN201620788378 U CN 201620788378U CN 205859980 U CN205859980 U CN 205859980U
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Abstract
This utility model relates to a kind of for power plant boiler low low-level (stack-gas) economizer modular device, including the little header of import, exports little header H type extended surface tube, shrouding, gripper shoe, support frame, U-shaped elbow；This device also includes arranging low low-level (stack-gas) economizer gas approach on the support frame and low low-level (stack-gas) economizer exhanst gas outlet；Wherein, the little header of import is connected by the entrance point of the first connecting tube with H type extended surface tube；H type extended surface tube is evenly arranged installation on the support frame；Gripper shoe is arranged vertically installation on the support frame equally spacedly；Shrouding is arranged on the both sides of support frame, and adjacent H type extended surface tube is connected by U-shaped elbow respectively；Export little header to be connected by the port of export of the second connecting tube with H type extended surface tube；The port of export of H type extended surface tube is also associated with condensing water reflux pipe.It has simple in construction, reasonable in design, reliable and stable, produce and maintenance cost is low and can effectively solve the problem that the advantages such as low low-level (stack-gas) economizer high temperature section and low-temperature zone swell increment.
Description
Technical field
This utility model relates to power plant coal-burning boiler equipment technical field, particularly relates to a kind of low for power plant boiler
Low-level (stack-gas) economizer modular device.This device is applicable to the transformation of big-and-middle-sized boiler of power plant low low-level (stack-gas) economizer, applies this modular
Be conducive to design arrangement and production, the convenient transportation of low low-level (stack-gas) economizer after structure, package frame need not be designed cost-effective, existing
When field is installed, module being in juxtaposition, the supporting construction (shaped steel) that only module is adjacent with module carries out seal weld, installs
Efficient and convenient, construction period can be greatly shortened, and increase little collection box structure, it is simple to leakage investigation and maintenance, improve entirety
Service life.
Background technology
The coal-burning boiler heat loss due to exhaust gas that is in operation in power plant is a very prominent heat loss, accounts for the heat that boiler is total
Loss 60-70%, runs exhaust gas temperature in the thermal power plant that China is most and is usually above design load.Damage to reduce smoke evacuation
Lose, reduce exhaust gas temperature, improve the pick up the heat efficiency in power plant, the most usually use the low low-level (stack-gas) economizer height to discharge
Temperature flue gas carries out waste heat recovery recycling.Low low-level (stack-gas) economizer is as the heat exchange on big-and-middle-sized boiler of power plant air preheater exhaust pass
Equipment, being mainly manifested in of it: (1) reduces exhaust gas temperature, improve boiler efficiency, save fuel；(2) recovered flue gas heat
Amount, heat-setting water；(3) optimize flue-gas temperature, improve efficiency of dust collection；(4) desulfurization water spray is reduced；(5) blower fan electric current is reduced.Mesh
Front conventional economizer H type extended surface tube uses two combs or structure that a comb is one group, assembles a group by a group during installation.If
The design of low low-level (stack-gas) economizer coal economizer structure routinely is not easy to design arrangement and site operation.Therefore, for this defect, grind
Study carefully a kind of device in the confined space, low-level (stack-gas) economizer can being fixed to have great importance.
Utility model content
The drawbacks described above existed for low low-level (stack-gas) economizer routine coal economizer structure fixed installation in prior art, this practicality
Novel purpose is: providing one for power plant boiler low low-level (stack-gas) economizer modular device, it has simple in construction, sets
Count reasonable, reliable and stable, produce and maintenance cost is low and can effectively solve the problem that low low-level (stack-gas) economizer high temperature section is swollen with low-temperature zone
The advantages such as bulk.
In order to achieve the above object, this utility model adopts the following technical scheme that
A kind of for power plant boiler low low-level (stack-gas) economizer modular device, this device include the little header of import, export little
Header H type extended surface tube, shrouding, gripper shoe, support frame, U-shaped elbow；It is low that this device also includes arranging on the support frame
Temperature economizer gas approach and low low-level (stack-gas) economizer exhanst gas outlet；Wherein, the little header of import is by the first connecting tube and H type fin
The entrance point of pipe is connected；H type extended surface tube is evenly arranged installation on the support frame；Gripper shoe is arranged vertically installation equally spacedly
On the support frame；Shrouding is arranged on the both sides of support frame, and adjacent H type extended surface tube is connected by U-shaped elbow respectively；Export little
Header is connected by the port of export of the second connecting tube with H type extended surface tube；The port of export of H type extended surface tube is also associated with condensing water and returns
Flow tube road.
As the further optimization of technique scheme, described H type extended surface tube includes circular base tube and fin, wherein,
The fin being equidistantly spaced from, and the folder that fin is in 90 ° with the vertical cross-section of circular base tube it is welded with in the both sides of circular base tube
Angle, the length value of each fin is 2-3 times of circular base tube diameter value；Described circular base tube and fin use the carbon steel of 20G
Or the steel alloy of 09CrCuSb.
As the further optimization of technique scheme, this device also includes controlling assembly, and this control assembly includes micro-control
Device processed, temperature sensor, electric control valve；Described temperature sensor is arranged on the outlet of H type extended surface tube and exhanst gas outlet, and with micro-
Controller is connected by data wire communication；Microcontroller controls to be connected with electric control valve, and it is little that electric control valve is arranged on import
The Inlet water system of header condenses the flow of water for regulating.
Compared with low-level (stack-gas) economizer routine coal economizer structure low with prior art fixed installation, use this utility model a kind of
Have the advantages that for power plant boiler low low-level (stack-gas) economizer modular device
(1) different group modules can use unlike material according to the actual smoke condition of zones of different, higher than flue gas acid dew point
Temperature province can use ordinary carbon steel material, less than the temperature province of flue gas acid dew point, corrosion resistant material can be used,
Meet performance requirement by rational material selection and reduce cost；
(2) simple in construction, convenient for production, it is simple to transport (package frame need not be designed)；
(3) use modular lifting easy for installation during site operation.
(4) each module devises the little header of import and export, and scene has only to the connection little header of import and export and enters, Kou great Ji
Case, decreases the welding job amount at scene.
(5) increase little collection box structure, it is simple to leakage investigation and maintenance, improve the overall operation life-span.
Accompanying drawing explanation
Accompanying drawing 1 is that a kind of positive TV structure for power plant boiler low low-level (stack-gas) economizer modular device of this utility model shows
It is intended to.
Accompanying drawing 2 is that a kind of plan structure for power plant boiler low low-level (stack-gas) economizer modular device of this utility model is shown
It is intended to.
Detailed description of the invention
1-2 is a kind of for power plant boiler low low-level (stack-gas) economizer modular device to this utility model below in conjunction with the accompanying drawings
Structure and working principle is described in detail.
A kind of for power plant boiler low low-level (stack-gas) economizer modular device, this device include the little header of import 1, export little
Header 2, H type extended surface tube 3, shrouding 4, gripper shoe 5, support frame 6, U-shaped elbow 7；This device also includes being arranged on support frame
On low low-level (stack-gas) economizer gas approach 8 and low low-level (stack-gas) economizer exhanst gas outlet 9；Wherein, the little header of import is by the first connection
Pipe 10 is connected with the entrance point of H type extended surface tube；H type extended surface tube is evenly arranged installation on the support frame；Gripper shoe is equidistant
Be arranged vertically installation on the support frame；Shrouding is arranged on the both sides of support frame, and adjacent H type extended surface tube is respectively by U-shaped
Elbow connects；Export little header to be connected by the port of export of the second connecting tube 11 with H type extended surface tube；The outlet of H type extended surface tube
End is also associated with condensing water reflux pipe.Described H type extended surface tube includes circular base tube and fin, wherein, at circular base tube
Both sides are welded with the fin being equidistantly spaced from, and the angle that fin is in 90 ° with the vertical cross-section of circular base tube, each fin
Length value is 2-3 times of circular base tube diameter value；Described circular base tube and fin use 20G carbon steel or the alloy of 09CrCuSb
Steel.
The above-mentioned operation principle for power plant boiler low low-level (stack-gas) economizer modular device of this utility model is: low temperature saves
The low-temperature zone of coal device and high temperature section can connect into an entirety, and sliding bottom is arranged on low-level (stack-gas) economizer and low-level (stack-gas) economizer props up
Between support beam.When low-level (stack-gas) economizer normally works, the body of low-level (stack-gas) economizer has swell increment, i.e. relative to the displacement of support beam
Amount, low-level (stack-gas) economizer realizes supporting, fixing low-level (stack-gas) economizer by sliding bottom relative to the displacement of support beam, and completes
Economizer displacement caused by expanding.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and apply this reality
With novel.These embodiments obviously easily can be made various amendment by person skilled in the art, and saying at this
Bright General Principle is applied in other embodiments without through performing creative labour.Therefore, this utility model is not limited to this
In embodiment, those skilled in the art are according to announcement of the present utility model, without departing from changing that this utility model category is made
Entering and revise all should be within protection domain of the present utility model.
Claims (3)
1. one kind is used for power plant boiler low low-level (stack-gas) economizer modular device, it is characterised in that: this device includes the little collection of import
Case (1), export little header (2), H type extended surface tube (3), shrouding (4), gripper shoe (5), support frame (6), U-shaped elbow (7)；Should
Device also includes arranging low low-level (stack-gas) economizer gas approach (8) on the support frame and low low-level (stack-gas) economizer exhanst gas outlet (9)；
Wherein, the little header of import is connected by the entrance point of the first connecting tube (10) with H type extended surface tube；H type extended surface tube is evenly arranged
Install on the support frame；Gripper shoe is arranged vertically installation on the support frame equally spacedly；Shrouding is arranged on support frame
Both sides, adjacent H type extended surface tube is connected by U-shaped elbow respectively；Export little header by the second connecting tube (11) and H type extended surface tube
The port of export be connected；The port of export of H type extended surface tube is also associated with condensing water reflux pipe.
One the most according to claim 1 is used for power plant boiler low low-level (stack-gas) economizer modular device, it is characterised in that:
Described H type extended surface tube includes circular base tube and fin, wherein, is welded with, in the both sides of circular base tube, the fin being equidistantly spaced from
Sheet, and the angle that fin is in 90 ° with the vertical cross-section of circular base tube, the length value of each fin is circular base tube diameter value
2-3 times；Described circular base tube and fin all use the carbon steel of 20G or the steel alloy of 09CrCuSb.
One the most according to claim 1 is used for power plant boiler low low-level (stack-gas) economizer modular device, it is characterised in that:
This device also includes controlling assembly, and this control assembly includes microcontroller, temperature sensor, electric control valve；Described temperature passes
Sensor is arranged on the outlet of H type extended surface tube and exhanst gas outlet, and is connected by data wire communication with microcontroller；Microcontroller and electricity
Dynamic governor valve control connects, and electric control valve is arranged on the Inlet water system of the little header of import for regulating the flow condensing water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620788378.7U CN205859980U (en) | 2016-07-25 | 2016-07-25 | A kind of for power plant boiler low low-level (stack-gas) economizer modular device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620788378.7U CN205859980U (en) | 2016-07-25 | 2016-07-25 | A kind of for power plant boiler low low-level (stack-gas) economizer modular device |
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| Publication Number | Publication Date |
|---|---|
| CN205859980U true CN205859980U (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620788378.7U Expired - Fee Related CN205859980U (en) | 2016-07-25 | 2016-07-25 | A kind of for power plant boiler low low-level (stack-gas) economizer modular device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871101A (en) * | 2017-01-25 | 2017-06-20 | 中国科学院广州能源研究所 | High-efficiency abrasion-proof low-level (stack-gas) economizer |
| CN109099413A (en) * | 2018-09-28 | 2018-12-28 | 江阴德耐特重工科技有限公司 | A kind of high-temperature acidic flue gas economizer prevents swollen support construction |
| CN111810935A (en) * | 2020-01-17 | 2020-10-23 | 武汉锅炉股份有限公司 | Manufacturing method of external economizer module of large garbage boiler |
-
2016
- 2016-07-25 CN CN201620788378.7U patent/CN205859980U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871101A (en) * | 2017-01-25 | 2017-06-20 | 中国科学院广州能源研究所 | High-efficiency abrasion-proof low-level (stack-gas) economizer |
| CN106871101B (en) * | 2017-01-25 | 2019-07-26 | 中国科学院广州能源研究所 | High-efficiency abrasion-proof low-level (stack-gas) economizer |
| CN109099413A (en) * | 2018-09-28 | 2018-12-28 | 江阴德耐特重工科技有限公司 | A kind of high-temperature acidic flue gas economizer prevents swollen support construction |
| CN109099413B (en) * | 2018-09-28 | 2023-12-15 | 江阴德耐特重工科技有限公司 | High temperature acid flue gas economizer prevents supporting structure that expands |
| CN111810935A (en) * | 2020-01-17 | 2020-10-23 | 武汉锅炉股份有限公司 | Manufacturing method of external economizer module of large garbage boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170426 Address after: A group of A Cheng Ashe River Street Baicheng village 150000 Heilongjiang city of Harbin province (Heilongjiang Cuihua vegetable group (A Cheng) Co. Ltd. hospital) Patentee after: Harbin Hengsheng Power Station Equipment Co., Ltd. Address before: 100195 Beijing city Haidian District minzhuang Road No. 3, Tsinghua Science Park building 24 West 1 Yuquan Huigu Patentee before: Beijing Hayi Energy-Saving Environmental Protection Technology Development Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 Termination date: 20190725 |