CN207648770U - A kind of wear-resistance low-level (stack-gas) economizer - Google Patents
A kind of wear-resistance low-level (stack-gas) economizer Download PDFInfo
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- CN207648770U CN207648770U CN201721859772.6U CN201721859772U CN207648770U CN 207648770 U CN207648770 U CN 207648770U CN 201721859772 U CN201721859772 U CN 201721859772U CN 207648770 U CN207648770 U CN 207648770U
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- antiwear
- antiwear casing
- coiled pipe
- pipe
- casing
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Abstract
The utility model discloses a kind of wear-resistance low-level (stack-gas) economizers, including low temperature coal saving tube, at least two Antiwear casings, shield watt and snap ring；The low temperature coal saving tube is coiled pipe, and the coiled pipe includes straight pipe and U-tube, and the straight pipe is arranged side by side, and the both ends of the U-tube are connect with two adjacent straight pipes respectively；The Antiwear casing includes straight Antiwear casing and U-shaped Antiwear casing, and the straight Antiwear casing is set in outside the straight pipe of coiled pipe, and the U-shaped Antiwear casing is set in outside the U-tube of coiled pipe；The Antiwear casing includes the arc panel that two sections are semicircle, and two arc panels are fixed on by shield watt outside coiled pipe；The shield watt is socketed in the junction of two Antiwear casings, and for connecting Antiwear casing and Antiwear casing, the snap ring will be for that will protect watt hoop in outside Antiwear casing.The utility model prevents coiled pipe from being worn because being washed away by flue gas by setting Antiwear casing in coiled pipe housing, has the advantages that abrasion can be prevented.
Description
Technical field
The utility model is related to field of boilers, more particularly to a kind of wear-resistance low-level (stack-gas) economizer.
Background technology
Economizer is mounted to a kind of device of the boiler back end ductwork lower part for recycling smoke discharging residual heat, since it absorbs height
The heat of warm flue gas reduces the exhaust gas temperature of flue gas, saves the energy, improves efficiency, so referred to as economizer.
Low-level (stack-gas) economizer is because of the geometry runner phase such as the dust burdening of flue gas, ash particle degree, temperature and hardness in by boiler operatiopn
The influence of pass factor, leads to serious wear, influences the service life of economizer, when wear up to breakage cause leakage when, boiler meeting
Abnormal blowing out causes an accident, unfavorable to the safe operation and personal safety of boiler.
Utility model content
For this reason, it may be necessary to provide a kind of wear-resistance low-level (stack-gas) economizer, easily ground for solving the low-level (stack-gas) economizer in current boiler
The problem of damage.
To achieve the above object, a kind of wear-resistance low-level (stack-gas) economizer, including low temperature coal saving tube, at least two are inventor provided
A Antiwear casing, shield watt and snap ring；
The low temperature coal saving tube is coiled pipe, and the coiled pipe includes straight pipe and U-tube, and the straight tube side-by-side is set
It sets, the both ends of the U-tube are connect with two adjacent straight pipes respectively；
The Antiwear casing includes straight Antiwear casing and U-shaped Antiwear casing, and the straight Antiwear casing is set in snakelike
Outside the straight pipe of pipe, the U-shaped Antiwear casing is set in outside the U-tube of coiled pipe；
The Antiwear casing includes the arc panel that two sections are semicircle, and two arc panels are fixed on coiled pipe by shield watt
Outside；
The shield watt is socketed in the junction of two Antiwear casings, for connecting Antiwear casing and Antiwear casing, the card
Ring will be for that will protect watt hoop in outside Antiwear casing.
Further, the Antiwear casing is compo pipe.
Further, it is outer to be welded in shield watt for the snap ring.
Further, the both ends of the snap ring are connected by screw bolt and nut, and hoop is outer in shield watt.
Further, there is the snap ring opening, the circumference of the shield watt to be provided with toroidal cavity, and the snap ring passes through
Opening is fastened on toroidal cavity.
Further, it is provided with heat-conducting pad between the coiled pipe and Antiwear casing.
Be different from the prior art, above-mentioned technical proposal by coiled pipe housing set Antiwear casing make coiled pipe not with pot
Flue gas in stove is in direct contact, and prevents coiled pipe from being worn because being washed away by flue gas, plays the role of preventing abrasion；Straight is anti-
Grinding set pipe is for being set in straight sections, and U-shaped Antiwear casing is for being set in U pipe portions, so that each position of coiled pipe is all
It can be protected by Antiwear casing；Junction of the shield watt for being socketed in two Antiwear casings, can prevent two Antiwear casings from connecting
It is worn by sweep of gases in the gap at the place of connecing；Snap ring is socketed in outside shield watt, plays the role of fixed shield watt.
Description of the drawings
Fig. 1 is the structural schematic diagram of wear-resistance low-level (stack-gas) economizer in one specific embodiment of the utility model.
Reference sign：
1, straight pipe；
2, U-tube；
3, straight Antiwear casing；
4, U-shaped abrasionproof pipe；
5, shield watt；
6, snap ring.
Specific implementation mode
For the technology contents of technical solution, construction feature, the objects and the effects are described in detail, below in conjunction with specific reality
It applies example and attached drawing is coordinated to be explained in detail.
The present embodiment provides a kind of wear-resistance low-level (stack-gas) economizers, are installed in boiler, can be added using boiler tail flue gas
Heat boiler water supply improves boiler and enters the feed temperature in drum, while can reduce exhaust gas temperature, to improve boiler
Efficiency.This economizer includes low temperature coal saving tube, at least two Antiwear casings, shield watt 5 and snap ring 6.
Referring to Fig. 1, in the particular embodiment, the low temperature coal saving tube is coiled pipe, and the coiled pipe includes straight
Pipe 1 and U-tube 2, the straight pipe 1 at least there are two, straight pipe and straight pipe are set in parallel, adjacent two straight pipes
Both ends of the same end respectively with U-tube 2 are connected to and in communication with.It is such setting enable water supply stopped in low temperature coal saving tube compared with
Long time, water supply can absorb the heat of low-temperature flue gas as much as possible, reduce exhaust gas temperature, reduce flue gas loss, save combustion
Material.
In the particular embodiment, the Antiwear casing prevents the abrasion of low temperature coal saving tube for being socketed in outside coiled pipe.
The Antiwear casing includes straight Antiwear casing 3 and U-shaped Antiwear casing 4, and the straight Antiwear casing is set in the straight of coiled pipe
Outside shape pipe, the U-shaped Antiwear casing is set in outside the U-tube of coiled pipe.It is compatible that such setting so that straight pipe has
Straight Antiwear casing, the compatible U-shaped Antiwear casing that U-tube has, straight pipe and U-tube can be protected by Antiwear casing
Shield.
In a further embodiment, due to the style characteristic that coiled pipe wriggles, directly Antiwear casing can not be sheathed on
Both ends are all connected with the straight pipe and U-tube of U-tube.Therefore Antiwear casing needs can be split, specifically, the Antiwear casing
It is the pipe of sealing after the arc panel connection of two semicircles including the arc panel that two sections are semicircle.Such setting makes
Antiwear casing can be socketed on outside U-tube and i.e. both ends are all connected with outside the straight pipe of U-tube in the middle part of coiled pipe.
In the particular embodiment, solid simultaneously in order to ensure that the gap between two adjacent Antiwear casings is not worn
Determine Antiwear casing.The socket shield watt 5 outside adjacent Antiwear casing, the shield watt are fastened on two adjacent wearing bush by snap ring 6
Pipe is outer, and such setting allows Antiwear casing to be firmly secured on coiled pipe, while can connect adjacent U-shaped abrasionproof
Casing and straight casing ensure that the gap of two casings is not worn.
In a further embodiment, the Antiwear casing is compo pipe, and such material can be better protected from abrasion,
Simultaneously because low-level (stack-gas) economizer is the boiler feedwater for flowing through coiled pipe using boiler tail flue gas heating, so such setting makes
Obtain coiled pipe still can normally carry out heat conduction after being arranged with Antiwear casing, not influence the normal work of low-level (stack-gas) economizer.
It in another embodiment, can be between coiled pipe and Antiwear casing in order to make the heat-conducting effect of coiled pipe more preferably
It is provided with heat-conducting pad.
In a further embodiment, the snap ring is welded in outside shield watt, and such setting is so that shield watt can be more steady
Surely Antiwear casing is fixed on outside coiled pipe.
In another embodiment, the both ends of the snap ring are connected by screw bolt and nut, and hoop is outer in shield watt.Such setting
It can be by the way that snap ring be dismantled so that Antiwear casing or shield watt can be dismantled, after Antiwear casing or shield watt abrasion, convenient for more
It changes.
In a preferred embodiment, there is the snap ring opening, i.e., the circumference of not closed circumferential clasp, the shield watt to set
It is equipped with toroidal cavity compatible with snap ring, the snap ring is fastened on toroidal cavity by opening.Such setting is convenient for
The installation of shield watt and snap ring.
It should be noted that the above description is only the embodiments of the present invention, those skilled in the art once know
Know the basic creative concept of the utility model, then additional changes and modifications can be made to these embodiments, so while
The various embodiments described above have been described herein, but have been not intended to limit the scope of patent protection of the utility model, it is all
It is equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, directly or indirectly uses
In other related technical areas, similarly it is included within the scope of patent protection of the utility model.
Claims (6)
1. a kind of wear-resistance low-level (stack-gas) economizer, which is characterized in that including low temperature coal saving tube, at least two Antiwear casings, shield watt and
Snap ring；
The low temperature coal saving tube is coiled pipe, and the coiled pipe includes straight pipe and U-tube, and the straight pipe is arranged side by side, institute
The both ends for stating U-tube are connect with two adjacent straight pipes respectively；
The Antiwear casing includes straight Antiwear casing and U-shaped Antiwear casing, and the straight Antiwear casing is set in coiled pipe
Outside straight pipe, the U-shaped Antiwear casing is set in outside the U-tube of coiled pipe；
The Antiwear casing includes the arc panel that two sections are semicircle, and two arc panels are fixed on by shield watt outside coiled pipe；
The shield watt is socketed in the junction of two Antiwear casings, and for connecting Antiwear casing and Antiwear casing, the snap ring is used
In hoop will be protected watt in outside Antiwear casing.
2. wear-resistance low-level (stack-gas) economizer according to claim 1, which is characterized in that the Antiwear casing is compo pipe.
3. wear-resistance low-level (stack-gas) economizer according to claim 1, which is characterized in that it is outer that the snap ring is welded in shield watt.
4. wear-resistance low-level (stack-gas) economizer according to claim 1, which is characterized in that the both ends of the snap ring by bolt and
Nut connects, and hoop is outer in shield watt.
5. wear-resistance low-level (stack-gas) economizer according to claim 1, which is characterized in that the snap ring has opening, the shield
Watt circumference be provided with toroidal cavity, the snap ring is fastened on toroidal cavity by opening.
6. wear-resistance low-level (stack-gas) economizer according to claim 1, which is characterized in that between the coiled pipe and Antiwear casing
It is provided with heat-conducting pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721859772.6U CN207648770U (en) | 2017-12-27 | 2017-12-27 | A kind of wear-resistance low-level (stack-gas) economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721859772.6U CN207648770U (en) | 2017-12-27 | 2017-12-27 | A kind of wear-resistance low-level (stack-gas) economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207648770U true CN207648770U (en) | 2018-07-24 |
Family
ID=62875516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721859772.6U Active CN207648770U (en) | 2017-12-27 | 2017-12-27 | A kind of wear-resistance low-level (stack-gas) economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207648770U (en) |
-
2017
- 2017-12-27 CN CN201721859772.6U patent/CN207648770U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 363900 official Hill Industrial Park, Wuan Town, Changtai County, Zhangzhou, Fujian Patentee after: Shanying South China Paper Co., Ltd Address before: 363900 official Hill Industrial Park, Wuan Town, Changtai County, Zhangzhou, Fujian Patentee before: FUJIAN LIANSHENG PAPER INDUSTRY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |