CN212564748U - Low fixed pipe clamp of bank of tubes again - Google Patents
Low fixed pipe clamp of bank of tubes again Download PDFInfo
- Publication number
- CN212564748U CN212564748U CN202021437999.3U CN202021437999U CN212564748U CN 212564748 U CN212564748 U CN 212564748U CN 202021437999 U CN202021437999 U CN 202021437999U CN 212564748 U CN212564748 U CN 212564748U
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- CN
- China
- Prior art keywords
- pipe clamp
- bank
- tubes
- pipe
- clamp
- 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.)
- Withdrawn - After Issue
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 239000003779 heat-resistant material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 3
- 239000004071 soot Substances 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Supports For Pipes And Cables (AREA)
Abstract
The utility model discloses a low fixed pipe clamp of bank of tubes again, including the pipe clamp, two pairs of pipe clamps of every bank of tubes installation adopt band steel welded connection to fix between the pipe clamp that adjacent bank of tubes is relative, and the pipe clamp just has elastic splint formula pipe clamp for the ripple type, and splint formula pipe clamp adopts back-to-back formula to install on the bank of tubes, and the splint formula pipe clamp is including the clamping part and the protruding portion of fixed bank of tubes, and clamping part and protruding portion are integrated into one piece. The utility model discloses because the splint formula pipe clamp adopts back-to-back type to install on the bank of tubes, clamping part and protruding portion integrated into one piece, and adopt band steel welded fastening to connect between the relative pipe clamp of adjacent bank of tubes to the low temperature reheater heating surface bank of tubes that will go out to arrange resets, ensures that the pipe is not listed as, and ensures that the intensity of fixed pipe clamp and the pipe distance of same elevation between the bank of tubes are unanimous, in addition, the utility model discloses be convenient for install, can be better press from both sides the bank of tubes tightly in case the pipe is listed as, and to the heating surface of boiler afterbody horizontal arrangement its cost is lower.
Description
Technical Field
The utility model relates to a thermal power boiler equipment field, concretely relates to low fixed pipe clamp of bank of tubes again.
Background
The DG2030/17.45-II3 type boiler used at present is put into operation in 2006, and the reheating steam temperature of the boiler can not reach the design value (541 +/-10 ℃) all the time due to unreasonable design after the boiler is put into operation. Aiming at the problems, a technician modifies a flue gas adjusting baffle and a reheater thereof, and a vertically wound tube panel is added between a low-temperature reheater and a high-temperature reheater, so that the reheated steam temperature is improved, the reheated steam temperature can be improved by 10-15 ℃ on average, and after a hearth and low-reheat ash blowing, the reheated steam temperature can reach 520 ℃ at 360 MW. In the initial stage after transformation, the soot blowing frequency is increased for improving the reheating steam temperature in low load, but the large-area abrasion of the pipes is caused due to the insufficient discharge of partial pipes and protection measures, the pipes are frequently leaked and exploded, and the safety and reliability of the boiler are seriously influenced. In order to ensure the safe operation of the boiler, only over-low and low-low steam soot blowing can be suspended, but after the steam soot blowing is stopped, the soot deposition and contamination of the heated surface pipe in the area are serious, the heat absorption capacity of the pipe is reduced, the resistance among pipe rows is increased, the steam temperature below 360MW load is less than 500 ℃, the smoke exhaust temperature is higher, and the heat economy of the unit is reduced.
In order to solve the problems, the handcuff type pipe clamps are adopted to fix the low and re-arranged pipes, each pipe row is provided with two pairs of handcuff type pipe clamps, the handcuff type pipe clamps are connected through 3 bolts, and the end parts of the handcuff type pipe clamps in each row are fixedly connected through flat steel welding after the handcuff type pipe clamps are installed, so that the pipes are prevented from shaking. However, the handcuff-type pipe clamps have a high cost for the horizontally arranged heating surface at the tail of the boiler, are inconvenient to install, and cannot clamp the tube bank well.
Disclosure of Invention
In view of the above, an object of the utility model is to provide a low fixed pipe clamp of bank of tubes again, the low temperature reheater heating surface bank of tubes that will go out to be listed as resets to solve the problem that afterbody flue heating surface bank of tubes was listed as, improve the security and the reliability of the boiler heating surface of thermal power plant, and be convenient for install, improve the fixed effect of bank of tubes.
In order to achieve the above purpose, the utility model provides a technical scheme is:
the utility model provides a low fixed pipe clamp of bank of tubes again, includes the pipe clamp, and two pairs of pipe clamps of every bank of tubes installation adopt band steel welded connection to fix between the pipe clamp that adjacent bank of tubes is relative, the pipe clamp is splint formula pipe clamp, splint formula pipe clamp adopts back-to-back formula to install on the bank of tubes, splint formula pipe clamp is including the clamping part and the protruding portion of fixed bank of tubes, clamping part and protruding portion are integrated into one piece.
Preferably, the clamping plate type pipe clamp is corrugated and elastic.
Preferably, the clamping part is matched with the pipe diameter and the pitch of the fixed pipe row.
Preferably, the number of the clamping parts is not less than 4.
Preferably, the material of the clamping plate type pipe clamp is 1Cr6Si2 Mo.
Preferably, the flat steel is arranged at equal intervals from top to bottom along the pipe clamp.
Preferably, the flat steel is made of a heat-resistant material.
The utility model has the advantages that: the utility model discloses because the splint formula pipe clamp adopts back-to-back type to install on the bank of tubes, clamping part and protruding portion integrated into one piece, and adopt band steel welded fastening to connect between the relative pipe clamp of adjacent bank of tubes to the low temperature reheater heating surface bank of tubes that will go out to arrange resets, ensures that the pipe is not listed as, and ensures that the intensity of fixed pipe clamp and the pipe distance of the same elevation between the bank of tubes are unanimous, in addition, the utility model discloses be convenient for install, can be better press from both sides the bank of tubes tightly in case the pipe is listed as, and it is lower to the heating surface that boiler afterbody level was arranged.
The present invention will be further explained with reference to the drawings and the embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of a low rehearsal row of the present invention;
FIG. 2 is a structural view of the clamp plate type pipe clamp of the present invention;
fig. 3 is a structural diagram of the clamp plate type pipe clamp fixing low rewinder row of the present invention.
The reference numerals in the drawings are explained below.
The device comprises pipe clamps-1, clamping parts-11, protruding parts-12, flat steel-2, pipe rows-3, cold secondary pipe groups-4, cold secondary pipe groups-5, a low-through inlet header-6, a well front package wall lower header-7, a front package wall central line-8 and a mid-partition wall central line-9.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships 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.
Example 1:
referring to fig. 1, in particular, the low bank 3 includes a cold further bank 4, a cold further bank 5, a low overhead header 6 and a downhole header 7, the cold further bank 4 and the cold further bank 5 being located between a centerline 8 of the forward wall and a centerline 9 of the intermediate wall.
Referring to fig. 2 and 3, the low-voltage and high-voltage tube bank fixing pipe clamp comprises pipe clamps 1, wherein each pipe bank 3 is provided with two pairs of pipe clamps 1, the pipe clamps 1 of adjacent pipe banks 3 are welded and fixed by flat steel 2, the pipe clamps 1 are clamp plate type pipe clamps 1, the clamp plate type pipe clamps 1 are arranged on the pipe banks 3 in a back-to-back manner, each clamp plate type pipe clamp 1 comprises a clamping portion 11 and a protruding portion 12 for fixing the pipe banks 3, and the clamping portion 11 and the protruding portion 12 are integrally formed.
In this embodiment, the clamping plate type pipe clamp 1 is corrugated and has elasticity to match the pipe diameter and pitch of the clamping portion 11 and the fixed pipe row 3, so that each pipe row is fixed one by one, pipes in the pipe row 3 are prevented from being discharged, and the installation is convenient.
In this embodiment, the number of the clamping portions 11 is not less than 4, so as to fix the tube row 3 better and prevent the tubes from being discharged.
Furthermore, the material of the clamp plate type pipe clamp 1 is 1Cr6Si2Mo, so that the clamp plate type pipe clamp 1 is high temperature resistant and corrosion resistant, can adapt to the operating conditions of a boiler, and prolongs the service life of the clamp plate type pipe clamp 1.
In the embodiment, the flat steel 2 is arranged at equal intervals from top to bottom along the pipe clamp 1, so that the strength of the fixed pipe clamp 1 is consistent with the pipe distance between the pipe rows 3 with the same elevation.
Furthermore, the flat steel 2 is made of heat-resistant materials, so that the flat steel can adapt to the high-temperature condition of long-term operation of the boiler.
The utility model discloses to the problem of going out to be listed as that the poor inflation arouses during long-term operation of low temperature crosses/the reheater, adopt elasticity ripple splint formula pipe clamp 1 and heat-resisting band steel 2 to retrain fixedly, dispersed the poor stress of inflation effectively. The long period operation result shows, the utility model discloses the technical scheme who uses can prevent effectively that 3 pipes of bank of tubes from being listed as, and afterbody heating surface bank of tubes 3 has improved the reliability greatly by fine fixed to make afterbody flue steam blow the soot function recovery, the reheater has improved 10 ~ 15 ℃ on average, and 70% operating mode reheat steam temperature can reach 520 ℃, has improved the economic nature of boiler.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used herein, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention being defined by the following claims and their equivalents.
Claims (7)
1. The utility model provides a low fixed pipe clamp of bank of tubes again, includes pipe clamp (1), and two pairs of pipe clamp (1) are installed in every bank of tubes (3), and adopt band steel (2) welded connection fixed between the relative pipe clamp (1) of adjacent bank of tubes (3), its characterized in that, pipe clamp (1) are clamp plate type pipe clamp (1), clamp plate type pipe clamp (1) adopt back-to-back formula to install on bank of tubes (3), clamp plate type pipe clamp (1) are including clamping part (11) and protruding portion (12) of fixed bank of tubes (3), clamping part (11) and protruding portion (12) are integrated into one piece.
2. The low rehearsal fixed pipe clamp of claim 1, wherein: the clamping plate type pipe clamp (1) is corrugated and elastic.
3. A low rehearsal fixed pipe clamp as claimed in claim 1 or 2, wherein: the clamping part (11) is matched with the pipe diameter and the pitch of the fixed pipe row (3).
4. A low rehearsal fixed pipe clamp as claimed in claim 1 or 2, wherein: the number of the clamping parts (11) is not less than 4.
5. A low rehearsal fixed pipe clamp as claimed in claim 1 or 2, wherein: the clamping plate type pipe clamp (1) is made of 1Cr6Si2 Mo.
6. The low rehearsal fixed pipe clamp of claim 1, wherein: the flat steel (2) is arranged from top to bottom at equal intervals along the pipe clamp (1).
7. The low rehearsal fixed pipe clamp of claim 6, wherein: the flat steel (2) is made of heat-resistant materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021437999.3U CN212564748U (en) | 2020-07-21 | 2020-07-21 | Low fixed pipe clamp of bank of tubes again |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021437999.3U CN212564748U (en) | 2020-07-21 | 2020-07-21 | Low fixed pipe clamp of bank of tubes again |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212564748U true CN212564748U (en) | 2021-02-19 |
Family
ID=74630716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021437999.3U Withdrawn - After Issue CN212564748U (en) | 2020-07-21 | 2020-07-21 | Low fixed pipe clamp of bank of tubes again |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212564748U (en) |
-
2020
- 2020-07-21 CN CN202021437999.3U patent/CN212564748U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210219 Effective date of abandoning: 20231218 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20210219 Effective date of abandoning: 20231218 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |