CN206018691U - A kind of enamel elliptical tube air preheater of maintenance easy to install - Google Patents
A kind of enamel elliptical tube air preheater of maintenance easy to install Download PDFInfo
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- CN206018691U CN206018691U CN201620981734.7U CN201620981734U CN206018691U CN 206018691 U CN206018691 U CN 206018691U CN 201620981734 U CN201620981734 U CN 201620981734U CN 206018691 U CN206018691 U CN 206018691U
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- enamel
- tube
- pipe
- elliptical
- elliptical tube
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model discloses a kind of enamel elliptical tube air preheater of maintenance easy to install, pipe and some heat exchanger tubes are reinforced including low-temperature zone bobbin carriage, some enamel, two pieces of tube sheets being parallel to each other are provided with low-temperature zone bobbin carriage, and every piece of tube sheet is mutually spliced to form by some pieces of splice plates；Pipe reinforced by some enamel and some heat exchanger tubes are arranged between two pieces of tube sheets；The two ends of every enamel reinforcing pipe are sealed with Tube-sheet Welding respectively；Every heat exchanger tube is enamel elliptical tube, and every enamel elliptical tube includes installation portion and heat exchanging part.The installation portion of every enamel elliptical tube is tightly connected with tube sheet.After using said structure, flue gas circulation area increase about 40% can be made, heat exchange area increase about 5% or so, heat transfer efficiency are high, and low-temperature-resistant corrosion, wear-resistant.In addition, whole bobbin carriage can loose mail delivery transport, and easily carry out in-site installation.Meanwhile, it is difficult dust stratification and dust stratification easy to clean.
Description
Technical field
This utility model is related to a kind of structure of heat transmission equipment in boiler plant, particularly a kind of enamel of maintenance easy to install
Elliptical tube air preheater.
Background technology
Either Industrial Boiler or station boiler, all more or less presence one in running of its air preheater
A little problems, it is serious to have plenty of cold end corrosion phenomenon, have plenty of abrasion, penetrate, fouling phenomenon seriously, have plenty of the two and all have, directly
Connect the safety and economic operation for affecting boiler controller system.6% that at present air preheater accounts for that boiler integrally invests in steam power plant of China～
8%, penetrate because of cold end corrosion, abrasion every year, the direct cost of dust stratification and the equipment replacement that causes and stopping production deashing accounts for running into
This 4%～5%, if along with therefore and cause blowing out stopping accident loss will be huger.
Therefore, my company is directed to different boiler combustion modes, different fuel and smoke components, organizes scientific research personnel
Tackling of key scientific and technical problems is carried out, through on-the-spot investigation for many years, substantial amounts of simulation test and operation test, heat exchange area is have developed greatly,
Heat transfer efficiency is high, and low-temperature-resistant is corroded, wear-resistant, is difficult dust stratification and dust stratification easy to clean, while easily installing the easy to install of maintenance
The enamel elliptical tube air preheater of maintenance.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and provides a kind of heat exchange area
Greatly, heat transfer efficiency is high, and low-temperature-resistant is corroded, wear-resistant, is difficult dust stratification and dust stratification easy to clean, while easily installing the easy peace that safeguards
The enamel elliptical tube air preheater that dress is safeguarded.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of enamel elliptical tube air preheater of maintenance easy to install, including low-temperature zone bobbin carriage, some enamel reinforce pipes and
Some heat exchanger tubes, are provided with two pieces of tube sheets being parallel to each other in low-temperature zone bobbin carriage, every piece of tube sheet is by some pieces of splice plate phases
Mutually it is spliced to form；Several rounded reinforcing pipe installing holes are provided with every piece of splice plate and several are rounded
Heat exchanger tube installing hole；Pipe reinforced by some enamel and some heat exchanger tubes are arranged between two pieces of tube sheets；Every enamel adds
Gu the two ends of pipe are passed from the reinforcing pipe installing hole of two pieces of tube sheets respectively and are sealed with Tube-sheet Welding；Every heat exchanger tube is
Enamel elliptical tube, every enamel elliptical tube are included positioned at the installation portion at two ends and positioned at middle heat exchanging part, wherein, installation portion
Section rounded, the section of heat exchanging part is ellipse；The installation portion of every enamel elliptical tube is from the heat exchanger tube of two pieces of tube sheets
Pass in installing hole, and be tightly connected with tube sheet.
Mutually it is spliced to form by four pieces of splice plates per tube sheet described in block, every piece of splice plate is rectangular.
Sealed using carbon seal ring between installation portion and tube sheet per enamel elliptical tube described in root.
The enamel elliptical tube adopts in-line arrangement, and the horizontal clear spacing between enamel elliptical tube is the 3- of longitudinal clear spacing
3.5 again.
Per surrounding and middle part that the reinforcing pipe installing hole on splice plate described in block is arranged at splice plate.
It is located on the enamel reinforcing pipe or heat exchanger tube of low-temperature zone bobbin carriage top and adds protection angle steel.
This utility model is had the advantages that using after said structure：
1. the setting of above-mentioned enamel elliptical tube, can make flue gas circulation area increase about 40%, can make heat exchange area increase about 5%
Left and right, heat transfer efficiency are high, and low-temperature-resistant corrosion, wear-resistant.
2. every piece of tube sheet is mutually spliced to form by some pieces of splice plates, so that whole bobbin carriage being capable of loose mail delivery fortune
Defeated, and carry out in-site installation.
3. in above-mentioned enamel elliptical tube, the section of installation portion is rounded, on the one hand, the heat exchanger tube installing hole on tube sheet is easy
Processing, low cost；In addition, the easy voltage regulator tube of enamel elliptical tube is installed.
4. the setting of pipe reinforced by enamel, and whole bobbin carriage can be made more to consolidate.
5. between above-mentioned enamel elliptical tube horizontal clear spacing setting so that dust stratification can be mitigated significantly, and dust stratification energy
Enough effectively cleanings.
6. the setting of above-mentioned protection angle steel, can prevent from installing or running is reinforced pipe to enamel elliptical tube or enamel and made
Into collision and damage, so as to the abrasionproof ability of pipe reinforced by the enamel elliptical tube strengthening being in contact with it or enamel.
Description of the drawings
Fig. 1 be a kind of maintenance easy to install of this utility model enamel elliptical tube air preheater in enamel elliptical tube mounting structure
Schematic diagram；
Fig. 2 shows the vertical section structure schematic diagram of enamel elliptical tube；
Fig. 3 shows enamel elliptical tube in-line arrangement structural representation.
Wherein have：
1. tube sheet；
2. splice plate；
3. pipe reinforced by enamel；
4. enamel elliptical tube；41. installation portions；42. heat exchanging part；
5. angle steel is protected.
Specific embodiment
This utility model is described in further detail with concrete better embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of enamel elliptical tube air preheater of maintenance easy to install, including low-temperature zone bobbin carriage, some enamel
Reinforce pipe 3 and some heat exchanger tubes.
Two pieces of tube sheets 1 being parallel to each other are provided with low-temperature zone bobbin carriage, and every piece of tube sheet 1 is mutual by some pieces of splice plates 2
It is spliced to form.The quantity of splice plate 2 is preferably four pieces, and every piece of splice plate is preferably rectangular.
Several rounded reinforcing pipe installing holes are provided with every piece of splice plate 2 and several rounded change
Heat pipe installing hole.
Pipe 3 reinforced by some enamel and some heat exchanger tubes are arranged between two pieces of tube sheets 1.
The two ends of every enamel reinforcing pipe 3 are passed from the reinforcing pipe installing hole of two pieces of tube sheets and and Tube-sheet Welding respectively
Sealing.
Every heat exchanger tube is enamel elliptical tube 4, as shown in Fig. 2 every enamel elliptical tube 4 includes the peace positioned at two ends
Dress portion 41 and the heat exchanging part 42 positioned at centre.
Wherein, the section of installation portion is rounded, and the section of heat exchanging part is ellipse；The installation portion of every enamel elliptical tube is equal
Pass from the heat exchanger tube installing hole of two pieces of tube sheets, and be tightly connected with tube sheet.
Preferably sealed using carbon seal ring between the installation portion and tube sheet of every enamel elliptical tube.So, enamel is oval
Can dismantle between pipe and tube sheet, when wherein one or more enamel elliptical tube breaks down, only which need to be changed or
Maintenance.
As shown in figure 3, enamel elliptical tube preferably adopts in-line arrangement, horizontal clear spacing S1 between enamel elliptical tube is vertical
3-3.5 times to clear spacing S2.
Further, as shown in figure 1, the reinforcing pipe installing hole on every piece of splice plate be arranged at the surrounding of splice plate and in
Portion.
Further, the enamel positioned at low-temperature zone bobbin carriage top is reinforced and adds protection angle steel 5 on pipe or heat exchanger tube.
Below so that UG75 ton stove air preheater low-temperature zone bobbin carriages transform enamel ellipse air preheater of the present utility model as an example, right
The installation method of the enamel elliptical tube air preheater of maintenance easy to install describes in detail.
A kind of installation method of the enamel elliptical tube air preheater of maintenance easy to install, comprises the steps：
Step 1, measurement installing space and line：The height and width of check measurement bearing support, and tube sheet overall dimensions,
Which is made to be consistent with drawing；Then tube sheet installation site line is pulled, and line will be accurately.
Step 2, tube sheet splicing and enamel are reinforced pipe and are installed：Splice plate is lifted on installation site line successively, and
It is spliced to form tube sheet；Then, interim fixation is taken, two pieces of tube sheets being spliced to form is positioned temporarily, and is adjusted tube sheet
Between distance, perpendicularity and diagonal, it is ensured that the perpendicularity≤4mm of tube sheet, catercorner length error≤10 mm.
Per block, above-mentioned tube sheet is spliced by four pieces of splice plates, and splicing gap requires to carry out two-sided welding, is not affecting
In the case of use, the surrounding of tube sheet is repaired, but reinforcing pipe installing hole and heat exchanger tube installing hole must not be damaged.
Step 3, installs enamel and reinforces pipe：First enamel reinforcing pipe is connected with tube sheet spot welding, then corrects a tube sheet
Perpendicularity and diagonal；Then will enamel to reinforce pipe two ends tight with the welding of tube sheet border firmly, enamel reinforce pipe with
Tube-sheet Welding is welded on the outside of tube sheet.
Pipe installation site reinforced by enamel, strictly install by requirement drawing position Suo Shi, it is ensured that after position dimension, ability
Enamel is reinforced circle tube to tube sheet welding, it is tight using outside welding that circle tube to tube sheet welding reinforced by enamel.
Step 4, cleaning heat exchanger tube installing hole simultaneously install enamel elliptical tube：By the impurity in the heat exchanger tube installing hole on tube sheet
Cleared up with burr one by one；Then enamel elliptical tube successively voltage regulator tube is installed；Enamel elliptical tube adopts in-line arrangement, and enamel is ellipse
Horizontal clear spacing between pipe is 3-3.5 times of longitudinal clear spacing.
When enamel elliptical tube voltage regulator tube is installed, enamel elliptical tube stretches out tube sheet two ends and wants uniformity.Enamel elliptical tube is installed
When to handle with care, it is impossible to touch, knock phenomenon, prevent enamel elliptical tube from burst porcelain occurring, if finding to have during installation
Etc. defect, should sort out.
Step 5, end sealing：Enamel elliptical tube two ends in bobbin carriage are sealed with carbon seal ring.Carbon seal ring
Must be compressed with specific purpose tool, be compacted, it is ensured that be tight, without air leakage phenomena.Permission at surrounding inconvenience sealing uses asbestos cord
Get wet glass capsulation, and asbestos cord must be pressed in counterbore and be compacted, press completely, it is ensured that tight, without air leakage phenomena.
Step 6, recovers the part satellite facility of other dismountings, after air leakage test is qualified, recovers heat-insulation layer.
In above-mentioned transformation, the total overall dimensions of former air reheater are constant, and all of heat exchanger tube of former bobbin carriage all changes
Enamel elliptical tube is caused, requires to rearrange according to the processing performance of enamel elliptical tube, the horizontal and vertical spacing of bank of tubes is by original
60mm, 55mm be changed to 56mm, 59mm, so horizontal and vertical clear spacing is changed into 31,9 from original 22,17, horizontal
Increase to clear spacing, dust stratification is mitigated and dust stratification is easily cleared up.Pipe is processed at enamel elliptical tube two ends, and pipe two ends are long
Spending carries out voltage regulator tube installation for 90mm to ensure scene, and is sealed using carbon seal ring with tube sheet.Suitable in bobbin carriage corner and centre
When pipe reinforced by location arrangements enamel, circle tube to tube sheet welding sealing reinforced by enamel.Array of pipes protection installed above most gone up by bobbin carriage
Angle steel, is caused to collide to pipe in installation or running with preventing and is damaged, and the abrasionproof ability for strengthening most going up array of pipes.
Parameter comparison before and after above-mentioned transformation is as follows：
| Project | Number of tubes | Flue gas circulation area | Ventilation area | Heat exchange area |
| Before transformation | 2964 | 4.54m2 | 2.69m2 | 728.25m2 |
| After transformation | 3060 | 6.47m2 | 2.33m2 | 762.32m2 |
Preferred implementation of the present utility model described in detail above, but, this utility model is not limited to above-mentioned reality
The detail in mode is applied, in range of the technology design of the present utility model, the technical solution of the utility model can be entered
The multiple equivalents of row, these equivalents belong to protection domain of the present utility model.
Claims (6)
1. the enamel elliptical tube air preheater of a kind of maintenance easy to install, it is characterised in that：Add including low-temperature zone bobbin carriage, some enamel
Gu pipe and some heat exchanger tubes, are provided with two pieces of tube sheets being parallel to each other in low-temperature zone bobbin carriage, every piece of tube sheet is by some pieces
Splice plate is mutually spliced to form；Several rounded reinforcing pipe installing holes are provided with every piece of splice plate and several are equal
Rounded heat exchanger tube installing hole；Pipe reinforced by some enamel and some heat exchanger tubes are arranged between two pieces of tube sheets；Per
Root enamel is reinforced the two ends of pipe and passes from the reinforcing pipe installing hole of two pieces of tube sheets respectively and sealed with Tube-sheet Welding；Change per root
Heat pipe is enamel elliptical tube, and every enamel elliptical tube is included positioned at the installation portion at two ends and positioned at middle heat exchanging part, its
In, the section of installation portion is rounded, and the section of heat exchanging part is ellipse；The installation portion of every enamel elliptical tube is from two pieces of tube sheets
Heat exchanger tube installing hole in pass, and be tightly connected with tube sheet.
2. the enamel elliptical tube air preheater of maintenance easy to install according to claim 1, it is characterised in that：Per tube sheet described in block
Mutually it is spliced to form by four pieces of splice plates, every piece of splice plate is rectangular.
3. the enamel elliptical tube air preheater of maintenance easy to install according to claim 1, it is characterised in that：Per enamel described in root
Sealed using carbon seal ring between the installation portion and tube sheet of elliptical tube.
4. the enamel elliptical tube air preheater of maintenance easy to install according to claim 1, it is characterised in that：The enamel is oval
Pipe adopts in-line arrangement, and the horizontal clear spacing between enamel elliptical tube is 3-3.5 times of longitudinal clear spacing.
5. the enamel elliptical tube air preheater of maintenance easy to install according to claim 1, it is characterised in that：Splice per described in block
Reinforcing pipe installing hole on plate is arranged at surrounding and the middle part of splice plate.
6. the enamel elliptical tube air preheater of maintenance easy to install according to claim 1, it is characterised in that：It is located at low-temperature zone pipe
The enamel of case top is reinforced and add protection angle steel on pipe or heat exchanger tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620981734.7U CN206018691U (en) | 2016-08-30 | 2016-08-30 | A kind of enamel elliptical tube air preheater of maintenance easy to install |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620981734.7U CN206018691U (en) | 2016-08-30 | 2016-08-30 | A kind of enamel elliptical tube air preheater of maintenance easy to install |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206018691U true CN206018691U (en) | 2017-03-15 |
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ID=58254363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620981734.7U Active CN206018691U (en) | 2016-08-30 | 2016-08-30 | A kind of enamel elliptical tube air preheater of maintenance easy to install |
Country Status (1)
| Country | Link |
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| CN (1) | CN206018691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225004A (en) * | 2016-08-30 | 2016-12-14 | 江苏国信泗阳生物质发电有限公司 | A kind of enamel elliptical tube air preheater and installation method |
-
2016
- 2016-08-30 CN CN201620981734.7U patent/CN206018691U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225004A (en) * | 2016-08-30 | 2016-12-14 | 江苏国信泗阳生物质发电有限公司 | A kind of enamel elliptical tube air preheater and installation method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |