CN114199046A

CN114199046A - Flue gas cooler

Info

Publication number: CN114199046A
Application number: CN202111563061.5A
Authority: CN
Inventors: 赵振刚; 郑威
Original assignee: Shandong Jiaheng Boiler Equipment Co ltd
Current assignee: Shandong Jiaheng Boiler Equipment Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-03-18

Abstract

The invention relates to the technical field of cooling equipment, in particular to a flue gas cooler which comprises a box body, wherein a tube bank and tube plates are arranged in the box body, the tube plates are arranged on the tube bank, an inlet header and an outlet header are arranged on the box body, one end of the tube bank is connected with the inlet header, the other end of the tube bank is connected with the outlet header, and header end cover plates are arranged on the inlet header and the outlet header. The invention relates to a flue gas cooler, which is a novel separately designed finned tube bank manufactured by a small bending radius process, wherein the tube diameter is 38-4.5, the material is 20G, the bending radius R is 39.5mm, the structure adopts staggered arrangement, so that the arrangement of a heated surface is more uniform, the general design is divided into two stages, the tube bank after heat absorption can reduce the temperature of flue gas and exhaust smoke, reduce the pollution to the atmosphere, hot water after the flue gas heating can enter a flue gas cooler again for cyclic utilization, save energy, reduce emission and improve the overall thermal efficiency of a boiler.

Description

Flue gas cooler

Technical Field

The invention relates to the technical field of cooling equipment, in particular to a flue gas cooler which is a novel energy-saving and emission-reducing device, and can improve the heat efficiency of a boiler and reduce the excess index of emission.

Background

During the operation of the biomass boiler unit, ash is deposited on the heated surface at the tail part, particularly at the cold air inlet of the primary air preheater and the secondary air preheater, the ash is deposited most rapidly and seriously when the boiler is started, the thermal efficiency is reduced due to the ash deposition of the boiler, the heat loss is serious, and the waste of resources is caused.

Disclosure of Invention

The invention provides a flue gas cooler aiming at the problems in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a flue gas cooler, includes the box, be provided with bank of tubes and tube sheet in the box, the tube sheet is installed on the bank of tubes, install import collection box and export collection box on the box, the one end and the import collection box of bank of tubes are connected, the other end and the export collection box of bank of tubes are connected, all install collection box tip apron on the import collection box and on the export collection box.

Specifically, the tube bank is connected with the inner side wall of the box body through the bottom frame.

Specifically, the top and the bottom of the box body are both provided with joints.

The invention has the beneficial effects that:

the invention relates to a flue gas cooler, which is a novel separately designed finned tube bank manufactured by a small bending radius process, wherein the tube diameter is 38-4.5, the material is 20G, the bending radius R is 39.5mm, the structure adopts staggered arrangement, so that the arrangement of a heated surface is more uniform, the general design is divided into two stages, the tube bank after heat absorption can reduce the temperature of flue gas and exhaust smoke, reduce the pollution to the atmosphere, hot water after the flue gas heating can enter a flue gas cooler again for cyclic utilization, save energy, reduce emission and improve the overall thermal efficiency of a boiler.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of the overall structure of a flue gas cooler provided by the present invention;

fig. 2 is a schematic side view of a flue gas cooler according to the present invention.

In the figure: 1. an inlet header; 2. an outlet header; 3. a tube bank; 4. a tube sheet; 5. a bottom frame; 6. a box body; 7. a header end cover plate; 8. and (4) a joint.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-2, the flue gas cooler of the present invention comprises a box body 6, a tube bank 3 and a tube plate 4 are arranged in the box body 6, the tube plate 4 is installed on the tube bank 3, an inlet header 1 and an outlet header 2 are installed on the box body 6, one end of the tube bank 3 is connected with the inlet header 1, the other end of the tube bank 3 is connected with the outlet header 2, and header end cover plates 7 are installed on both the inlet header 1 and the outlet header 2.

Specifically, the tube bundle 3 is connected to the inner side wall of the cabinet 6 by a bottom frame 5.

Specifically, the top and the bottom of the box body 6 are provided with joints 8.

When the smoke cooler is used, a group of smoke cooler devices are respectively arranged on the primary air duct and the secondary air duct, water is connected through the main water supply pipeline and enters the inlet header 1 of the smoke cooler through the pipeline, the smoke heats the tube bank 3 of the smoke cooler, and the water temperature of the heated tube bank 3 is raised, so that hot water is reused and enters the main water supply pipeline.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a flue gas cooler, its characterized in that, includes box (6), be provided with bank of tubes (3) and tube sheet (4) in box (6), install on bank of tubes (3) tube sheet (4), install import collection box (1) and export collection box (2) on box (6), the one end and the import collection box (1) of bank of tubes (3) are connected, the other end and the export collection box (2) of bank of tubes (3) are connected, all install collection box tip apron (7) on import collection box (1) and the export collection box (2).

2. A flue gas cooler according to claim 1, characterized in that: the tube bank (3) is connected with the inner side wall of the box body (6) through the bottom frame (5).

3. A flue gas cooler according to claim 1, characterized in that: the top and the bottom of the box body (6) are both provided with joints (8).