CN217082521U - Longitudinal rib type coal economizer - Google Patents

Longitudinal rib type coal economizer Download PDF

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Publication number
CN217082521U
CN217082521U CN202120933351.3U CN202120933351U CN217082521U CN 217082521 U CN217082521 U CN 217082521U CN 202120933351 U CN202120933351 U CN 202120933351U CN 217082521 U CN217082521 U CN 217082521U
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China
Prior art keywords
longitudinal rib
vertical fin
economizer
fin pipe
steel frame
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CN202120933351.3U
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Chinese (zh)
Inventor
杨承伟
刘冰
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Shanghai Sifang Boiler Group Engineering System Co ltd
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Shanghai Sifang Boiler Group Engineering System Co ltd
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Abstract

The utility model discloses a vertical fin formula economizer, include: the steel frame comprises a bottom steel frame, wherein a plurality of longitudinal rib tubes are vertically and fixedly installed on the bottom steel frame at uniform intervals through tube plates, outer guard plates are arranged on the steel frame around the longitudinal rib tubes, the longitudinal rib tubes are located at the inner sides of the outer guard plates, and the longitudinal rib tubes are connected with one of the outer guard plates in a penetrating mode. The utility model has the advantages of simple and reasonable structure, the flue gas flows from the top down, gets into the clearance between the vertical fin pipe, and vertical fin pipe is unanimous with the flue gas flow direction for vertical fin pipe is difficult to the deposition, and has increased the heated area of vertical fin pipe, and the deashing of being convenient for is gone out to the cooperation soot blower, thereby has effectively promoted the heat recovery efficiency of economizer, and the practicality is strong.

Description

Longitudinal rib type coal economizer
Technical Field
The utility model relates to a boiler technical field especially relates to a vertical fin formula economizer.
Background
The economizer is a device which is arranged at the lower part of a flue at the tail part of a boiler and used for recovering the waste heat of exhausted smoke, heats the water fed by the boiler into a heating surface of saturated water under the pressure of a steam drum, and is called as the economizer because the economizer absorbs the heat of high-temperature smoke, reduces the exhaust temperature of the smoke, saves energy and improves the efficiency. The steel pipe type economizer is not limited by pressure, can be used as a boiling type economizer and is generally made of carbon steel pipes with the outer diameter of 32-51 mm. Fins and fins are sometimes added to the tube to improve heat transfer. The steel pipe type economizer consists of parallel elbow pipes (commonly called coiled pipes) which are horizontally arranged.
However, in the use process of the existing economizer, dust is easily accumulated on the pipeline rib, so that the heat transfer efficiency of the economizer is affected, the heat recovery efficiency of the economizer is reduced, and certain defects exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a vertical fin formula economizer reduces the dust accumulation on the fin pipe, promotes the heat recovery efficiency of economizer.
In order to solve the technical problem, the utility model provides a vertical fin formula economizer, include: the bottom steelframe, there are a plurality of vertical fin pipes through the vertical fixed mounting of the even interval of tube sheet on the bottom steelframe, it all is provided with the outer casing all around to lie in vertical fin pipe on the steelframe, vertical fin pipe is located four the outer casing inboard, just four are imported and exported to vertical fin pipe one of them through connection in the outer casing.
Further, a soot blower is arranged in the center of the longitudinal finned tube bundle.
Furthermore, an access door is arranged in the center of the longitudinal rib tube bundle.
Furthermore, a sealing sleeve is arranged between the inlet and the outlet of the longitudinal rib pipe and the interface of the outer guard plate.
Through the technical scheme, the utility model discloses following beneficial effect has:
the utility model has the advantages of simple and reasonable structure, the flue gas flows from the top down, gets into the clearance between the vertical fin pipe, and vertical fin pipe is unanimous with the flue gas flow direction for vertical fin pipe is difficult to the deposition, and has increased the heated area of vertical fin pipe, and the deashing of being convenient for is gone out to the cooperation soot blower, thereby has effectively promoted the heat recovery efficiency of economizer, and the practicality is strong.
Drawings
FIG. 1 is a front view of the overall structure of the longitudinal rib type economizer of the present invention
Fig. 2 is a left side view of the overall structure of the longitudinal rib type economizer of the present invention.
Detailed Description
The longitudinal rib type economizer of the present invention will now be described in greater detail with reference to the schematic drawings, in which preferred embodiments of the present invention are shown, it being understood that those skilled in the art may modify the invention herein described while still achieving the advantageous effects of the present invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.
The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
As shown in fig. 1-2, an embodiment of the present invention provides a longitudinal rib type economizer, including: bottom steelframe 1, there are a plurality of vertical fin pipes 3 through the vertical fixed mounting of the even interval of tube sheet 2 on the bottom steelframe 1, it all is provided with outer casing 4 all around to lie in vertical fin pipe 3 on the steelframe 1, vertical fin pipe 3 is located four 4 inboards of outer casing, just four are imported and exported to vertical fin pipe 3 one of them through connection in the outer casing 4.
In the present embodiment, a soot blower 5 is arranged in the center of the bundle of longitudinal finned tubes 3. The arrangement of the soot blower 5 realizes the effective removal of dust in the flue gas.
In the present embodiment, an access door 6 is further provided at the center of the bundle of longitudinal finned tubes 3. The arrangement of the access door 6 facilitates the maintenance of the soot blower 5.
In the present embodiment, a sealing sleeve 7 is disposed between the inlet/outlet of the longitudinal rib tube 3 and the interface of the outer guard plate 4. The sealing sleeve 7 improves the sealing performance between the longitudinal rib pipes 3 and the outer protective plate 4, and reduces heat loss.
When using, the flue gas is blown in from the top, enter into in the clearance between the longitudinal rib pipe 3, gas outlet from bottom steelframe 1 on discharges, because the flue gas flow direction is unanimous with the direction of longitudinal rib pipe 3, make difficult accumulation dust on the longitudinal rib pipe 3, the heated area of longitudinal rib pipe 3 has effectively been increased simultaneously, at the flue gas flow in-process, the setting of cooperation soot blower 5, can effectively detach the dust of flue gas, through opening access door 6, can maintain soot blower 5.
To sum up, for prior art, the utility model discloses, following advantage has:
the utility model has the advantages of simple and reasonable structure, the flue gas flows from the top down, gets into the clearance between the vertical fin pipe, and vertical fin pipe is unanimous with the flue gas flow direction for vertical fin pipe is difficult to the deposition, and has increased the heated area of vertical fin pipe, and the deashing of being convenient for is gone out to the cooperation soot blower, thereby has effectively promoted the heat recovery efficiency of economizer, and the practicality is strong.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (4)

1. A longitudinal rib economizer, comprising: the bottom steelframe, there are a plurality of vertical fin pipes through the vertical fixed mounting of the even interval of tube sheet on the bottom steelframe, it all is provided with the outer casing all around to lie in vertical fin pipe on the steelframe, vertical fin pipe is located four the outer casing inboard, just four are imported and exported to vertical fin pipe one of them through connection in the outer casing.
2. The longitudinal finned economizer of claim 1 wherein a sootblower is centrally disposed in the longitudinal finned tube bundle.
3. The longitudinal rib economizer of claim 1 wherein an access door is further provided in the center of the longitudinal rib tube bundle.
4. The longitudinal rib economizer of claim 1 wherein a gland is disposed between the longitudinal rib tube inlet and outlet and the outer shroud interface.
CN202120933351.3U 2021-04-30 2021-04-30 Longitudinal rib type coal economizer Active CN217082521U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120933351.3U CN217082521U (en) 2021-04-30 2021-04-30 Longitudinal rib type coal economizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120933351.3U CN217082521U (en) 2021-04-30 2021-04-30 Longitudinal rib type coal economizer

Publications (1)

Publication Number Publication Date
CN217082521U true CN217082521U (en) 2022-07-29

Family

ID=82498128

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120933351.3U Active CN217082521U (en) 2021-04-30 2021-04-30 Longitudinal rib type coal economizer

Country Status (1)

Country Link
CN (1) CN217082521U (en)

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