CN219160408U

CN219160408U - Device for increasing combustion-supporting air temperature by using high-temperature flue gas

Info

Publication number: CN219160408U
Application number: CN202223188305.9U
Authority: CN
Inventors: 房开彬; 常文飞; 王东明
Original assignee: Henan Winner Vibrating Equipment Co Ltd
Current assignee: Henan Winner Vibrating Equipment Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-06-09
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a device for increasing the temperature of combustion air by utilizing high-temperature flue gas, which comprises an electromagnetic direct-injection heat exchange frame, wherein a flue gas discharge mechanism and a combustion air mechanism are arranged below the electromagnetic direct-injection heat exchange frame, a heat exchanger is arranged between the flue gas discharge mechanism and the combustion air mechanism, the flue gas discharge mechanism comprises an induced draft fan and a filter, the surface of the induced draft fan is fixedly communicated with an air supply pipeline, and the combustion air mechanism comprises a heat exchange device and a blower; through setting up the heat exchanger, the heat exchanger is replaced the high temperature flue gas ability of flue gas discharge mechanism, supplies heat for the combustion-supporting wind, improves the combustion-supporting wind temperature like this, has reduced the gas consumption.

Description

Device for increasing combustion-supporting air temperature by using high-temperature flue gas

Technical Field

The utility model relates to the technical field of electromagnetic direct-injection heat exchange systems, in particular to a device for increasing the temperature of combustion-supporting air by using high-temperature flue gas.

Background

The electromagnetic direct injection heat exchange system can utilize redundant blast furnace gas generated by a steel plant to preheat the scrap steel, is used for a plurality of production links of iron works, steel plants (steelmaking, refining workshops) and the like, can realize continuous conveying, continuous preheating and continuous discharging of the scrap steel, ensures that the operation flow is continuous and convenient, has small heat energy loss, and avoids potential safety hazards generated in the preheating process of the scrap steel.

However, the conventional electromagnetic direct injection heat exchange system has the following disadvantages:

(1) The traditional electromagnetic direct-injection heat exchange system sucks out high-temperature flue gas in the baking section through induced fans at two sides of the tank body, and discharges the high-temperature flue gas into a field dust removal pipeline after being cooled by a heat exchanger, so that the heat of the high-temperature flue gas is lost in a white way in the process, and the capacity loss is caused;

(2) The traditional electromagnetic direct-injection heat exchange system has low combustion air temperature, and needs to consume a large amount of fuel during combustion, thereby increasing the heat exchange cost.

Disclosure of Invention

The utility model aims to provide a device for increasing the temperature of combustion-supporting air by utilizing high-temperature flue gas, so as to solve the problem that the traditional electromagnetic direct-injection heat exchange system provided in the background art sucks the high-temperature flue gas in a baking section out through two sides of a tank body by a draught fan, and discharges the high-temperature flue gas into a field dust removal pipeline after being cooled by a heat exchanger, so that the heat of the high-temperature flue gas is lost in white, and the capacity is lost; the traditional electromagnetic direct-injection heat exchange system has the problems that the temperature of combustion supporting air is low, a large amount of fuel is consumed during combustion, and the heat exchange cost is increased.

In order to achieve the above purpose, the present utility model provides the following technical solutions: utilize high temperature flue gas to increase device of combustion-supporting wind temperature, including the electromagnetism directly spouts the heat exchange frame, the below that the heat exchange was put up is equipped with flue gas discharge mechanism and combustion-supporting wind mechanism to the electromagnetism directly spouts, install the heat exchanger between flue gas discharge mechanism and the combustion-supporting wind mechanism, flue gas discharge mechanism includes draught fan and filter, the fixed intercommunication of surface of draught fan has the air supply pipeline, one side that the draught fan was kept away from to the air supply pipeline and one side fixed intercommunication of filter, the opposite side fixed intercommunication of filter has pipeline, the fixed intercommunication in middle part of air supply pipeline has connecting tube, the combustion-supporting wind mechanism includes heat transfer device and air-blower, and the draught fan is with the inside high temperature flue gas of baking section on the electromagnetism directly spouts the heat exchange frame through cell body both sides suction, carries through the air supply pipeline.

Preferably, the air inlet and the water inlet of the heat exchange device are fixedly communicated with an air inlet pipeline and a heat exchange pipeline respectively, one end of the air inlet pipeline, which is far away from the heat exchange device, is fixedly communicated with one side of the air blower, the air outlet of the heat exchange device is fixedly communicated with a combustion-supporting pipeline, one end of the connecting pipeline, which is far away from the air supply pipeline, is fixedly communicated with the middle part of the combustion-supporting pipeline, the air blower injects gas into the heat exchange device through the air inlet pipeline, and the gas with temperature is conveyed into the combustion-supporting pipeline after heat exchange of the heat exchange device.

Preferably, one end of the conveying pipeline far away from the filtering piece is fixedly communicated with the inlet of the heat exchanger, one end of the heat exchange pipeline far away from the heat exchange device is fixedly communicated with the outlet of the heat exchanger, the flue gas discharging mechanism conveys gas into the heat exchanger through the conveying pipeline, and the gas is conveyed into the combustion-supporting air mechanism through the heat exchange pipeline after heat exchange of the heat exchanger.

Preferably, the filter piece includes filtering shell and takes the filter screen to intercept the shell, the inside fixed mounting of filtering shell has the filter screen body, the middle part fixed mounting that the filtering shell is close to draught fan one side has servo motor, servo motor's output passes filtering shell fixed mounting and has the rotation axis, the both sides fixed mounting of rotation axis has a plurality of push rod different in length, a plurality of the one end that the rotation axis was kept away from to the push rod all is connected with the inboard contact of taking the filter screen to intercept the shell.

Preferably, the both sides of taking the filter screen to intercept the shell are all fixed mounting has the length pole that extends to external world, and two length pole is for filtering shell sliding connection, two length pole is kept away from the equal fixed mounting of one end of taking the filter screen to intercept the shell and is had the limiting plate, two equal fixed mounting in both ends between limiting plate and the filter shell has the spring, and starting after the servo motor circular telegram, servo motor drive rotation axis rotation, rotation axis drive catch bar carries out synchronous motion, and the catch bar promotes from taking the filter screen to intercept the shell inboard, and the in-process of promotion, length pole take place to slide along the filter shell, and at this moment, unilateral limiting plate pulls from the one end of spring, and the spring has elasticity, and spring takes place elastic deformation to cushion to pulling the power to take the filter screen to intercept the shell to reset later take filter screen on the filter screen to intercept the shell and filter screen body to the impurity in the draught fan conveying gas.

Preferably, one side of the filter shell far away from the servo motor is fixedly communicated with the conveying pipeline, one side of the filter shell far away from the conveying pipeline is fixedly communicated with the air supply pipeline, and the filter element is connected with the conveying pipeline and the air supply pipeline through the filter shell.

Compared with the prior art, the utility model has the beneficial effects that:

1. by arranging the heat exchanger, a heat exchange device is added between the smoke discharge mechanism and the combustion air mechanism, so that high-temperature smoke of the smoke discharge mechanism exchanges heat with cold combustion air, the waste of capacity is reduced, and the utilization rate of the high-temperature smoke is improved;

2. through setting up the heat exchanger, the heat exchanger is replaced the high temperature flue gas ability of flue gas discharge mechanism, supplies heat for the combustion-supporting wind, improves the combustion-supporting wind temperature like this, has reduced the gas consumption.

Drawings

FIG. 1 is a side view of the present utility model;

FIG. 2 is a diagram showing the connection of the flue gas exhaust mechanism and the heat exchanger according to the present utility model;

FIG. 3 is a schematic view of the structure of the filter element of the present utility model.

In the figure: 1. an electromagnetic direct-injection heat exchange frame; 2. a smoke exhaust mechanism; 21. an induced draft fan; 22. an air supply pipeline; 23. a filter; 231. a filter housing; 232. a filter screen body; 233. a limiting plate; 234. a spring; 235. a servo motor; 236. a rotation shaft; 237. a push rod; 238. a interception shell with a filter screen; 239. a length bar; 24. a delivery conduit; 25. a connecting pipe; 3. a heat exchanger; 4. a combustion-supporting air mechanism; 41. a blower; 42. an air intake duct; 43. a combustion-supporting pipeline; 44. a heat exchange device; 45. and a heat exchange pipeline.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-3, the utility model provides a device for increasing the temperature of combustion air by using high-temperature flue gas, which comprises an electromagnetic direct-injection heat exchange frame 1, wherein a flue gas discharging mechanism 2 and a combustion air mechanism 4 are arranged below the electromagnetic direct-injection heat exchange frame 1, a heat exchanger 3 is arranged between the flue gas discharging mechanism 2 and the combustion air mechanism 4, the flue gas discharging mechanism 2 comprises an induced draft fan 21 and a filter piece 23, the surface of the induced draft fan 21 is fixedly communicated with an air supply pipeline 22, one side of the air supply pipeline 22 far away from the induced draft fan 21 is fixedly communicated with one side of the filter piece 23, the other side of the filter piece 23 is fixedly communicated with a conveying pipeline 24, the middle part of the air supply pipeline 22 is fixedly communicated with a connecting pipeline 25, the combustion air mechanism 4 comprises a heat exchanging device 44 and a blower 41, and the induced draft fan 21 sucks the high-temperature flue gas inside a baking section on the electromagnetic direct-injection heat exchange frame 1 out from two sides of a tank body and conveys the high-temperature flue gas through the air supply pipeline 22.

The air inlet and the water inlet of the heat exchange device 44 are fixedly communicated with an air inlet pipeline 42 and a heat exchange pipeline 45 respectively, one end, far away from the heat exchange device 44, of the air inlet pipeline 42 is fixedly communicated with one side of the air blower 41, the air outlet of the heat exchange device 44 is fixedly communicated with a combustion-supporting pipeline 43, one end, far away from the air supply pipeline 22, of the connecting pipeline 25 is fixedly communicated with the middle part of the combustion-supporting pipeline 43, the air blower 41 injects air into the heat exchange device 44 through the air inlet pipeline 42, and the air with temperature is conveyed into the combustion-supporting pipeline 43 after heat exchange of the heat exchange device 44.

One end of the conveying pipeline 24 far away from the filter element 23 is fixedly communicated with the inlet of the heat exchanger 3, one end of the heat exchange pipeline 45 far away from the heat exchange device 44 is fixedly communicated with the outlet of the heat exchanger 3, the flue gas discharging mechanism 2 conveys gas into the heat exchanger 3 through the conveying pipeline 24, and the gas is conveyed into the combustion air mechanism 4 through the heat exchange pipeline 45 after heat exchange of the heat exchanger 3.

The filter 23 includes filtration shell 231 and takes the filter screen to intercept the shell 238, the inside fixed mounting who filters shell 231 has filter screen body 232, the middle part fixed mounting who filters shell 231 and is close to one side of draught fan 21 has servo motor 235, servo motor 235's output passes filtration shell 231 fixed mounting has rotation axis 236, rotation axis 236's both sides fixed mounting has a plurality of push rod 237 of different length, the one end that rotation axis 236 was kept away from to a plurality of push rod 237 all is connected with the inboard contact of taking filter screen to intercept the shell 238, the both sides that take filter screen to intercept the shell 238 all fixed mounting have the length pole 239 that extend to the external world, and two length poles 239 for filtration shell 231 sliding connection, the one end that takes away from taking filter screen to intercept the shell 238 all fixed mounting limiting plate 233, both ends that two limiting plate 233 and filtration shell 231 were therebetween all fixed mounting have spring 234, servo motor 235 start after the circular telegram, the rotation axis 236 drives rotation axis 236, push rod 237 carries out synchronous motion from taking filter screen to intercept the shell 238 inboard to promote, the in-process that push rod 237, length pole along filtration shell 231 slides, take place to slide, the length pole 239, take place to take place elastic deformation to intercept the filter screen to take place in the filter screen to intercept the shell 234 from the filter screen from the spring 234 to take place in the elastic deformation of filter screen to intercept the shell 234, the filter screen to take place in the elastic deformation of the filter screen to stop-shaped filter screen body 234, the end 234.

The side of the filter housing 231 far away from the servo motor 235 is fixedly communicated with the conveying pipeline 24, the side of the filter housing 231 far away from the conveying pipeline 24 is fixedly communicated with the air supply pipeline 22, and the filter piece 23 is connected with the conveying pipeline 24 and the air supply pipeline 22 through the filter housing 231.

When the embodiment of the application is used, the following steps are adopted: the induced draft fan 21 sucks out high-temperature flue gas in the baking section on the electromagnetic direct-injection heat exchange frame 1 through two sides of the groove body, the high-temperature flue gas is conveyed into the filter piece 23 through the air supply pipeline 22, the servo motor 235 is started after being electrified, the servo motor 235 drives the rotating shaft 236 to rotate, the rotating shaft 236 drives the push rod 237 to synchronously move, the push rod 237 pushes from the inner side of the filter screen intercepting shell 238, in the pushing process, the length rod 239 slides along the filter shell 231, at the moment, the limiting plate 233 on one side pulls from one end of the spring 234, the spring 234 is elastic, the spring 234 elastically deforms to buffer the pulling force so as to facilitate the reset of the subsequent filter screen intercepting shell 238, the filter screen on the filter screen intercepting shell 238 and the filter screen body 232 intercept impurities in the air conveyed by the induced draft fan 21, the impurities are conveyed into the heat exchanger 3 through the conveying pipeline 24, the impurities are conveyed into the combustion-supporting air mechanism 4 through the heat exchange pipeline 45 after the heat exchange of the heat exchanger 3, the air blower 41 injects the air into the heat exchange device 44 through the air inlet pipeline 42, and the air with temperature is conveyed into the combustion-supporting pipeline 43 after the heat exchange device 44.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Utilize high temperature flue gas to increase device of combustion-supporting wind temperature, including electromagnetism direct injection heat exchange frame (1), its characterized in that: the utility model provides a heat exchange frame is directly spouted to electromagnetism below of heat exchange frame (1) is equipped with flue gas discharge mechanism (2) and combustion-supporting wind mechanism (4), install heat exchanger (3) between flue gas discharge mechanism (2) and the combustion-supporting wind mechanism (4), flue gas discharge mechanism (2) are including draught fan (21) and filter medium (23), the fixed surface intercommunication of draught fan (21) has air supply pipeline (22), one side that draught fan (21) were kept away from to air supply pipeline (22) and one side fixed intercommunication of filter medium (23), the opposite side fixed intercommunication of filter medium (23) has pipeline (24), the middle part fixed intercommunication of air supply pipeline (22) has connecting tube (25), combustion-supporting wind mechanism (4) include heat transfer device (44) and air-blower (41).

2. The apparatus for increasing the temperature of combustion air by using high-temperature flue gas according to claim 1, wherein: the air inlet and the water inlet of the heat exchange device (44) are fixedly communicated with an air inlet pipeline (42) and a heat exchange pipeline (45) respectively, one end, far away from the heat exchange device (44), of the air inlet pipeline (42) is fixedly communicated with one side of the air blower (41), the air outlet of the heat exchange device (44) is fixedly communicated with a combustion supporting pipeline (43), and one end, far away from the air supply pipeline (22), of the connecting pipeline (25) is fixedly communicated with the middle part of the combustion supporting pipeline (43).

3. The apparatus for increasing the temperature of combustion air by using high-temperature flue gas according to claim 2, wherein: one end of the conveying pipeline (24) far away from the filtering piece (23) is fixedly communicated with an inlet of the heat exchanger (3), and one end of the heat exchange pipeline (45) far away from the heat exchange device (44) is fixedly communicated with an outlet of the heat exchanger (3).

4. The apparatus for increasing the temperature of combustion air by using high-temperature flue gas according to claim 1, wherein: filter piece (23) are including filtering shell (231) and taking filter screen interception shell (238), the inside fixed mounting of filtering shell (231) has filter screen body (232), the middle part fixed mounting that is close to draught fan (21) one side of filtering shell (231) has servo motor (235), the output of servo motor (235) passes filtering shell (231) fixed mounting and has rotation axis (236), the both sides fixed mounting of rotation axis (236) has push rod (237) of a plurality of different length, a plurality of push rod (237) keep away from the inboard contact connection of rotation axis (236) and taking filter screen interception shell (238).

5. The apparatus for increasing the temperature of combustion air by using high-temperature flue gas according to claim 4, wherein: the both sides of taking filter screen interception shell (238) are all fixed mounting have length pole (239) that extend to the external world, and two length pole (239) are for filtering shell (231) sliding connection, two length pole (239) keep away from the equal fixed mounting of one end of taking filter screen interception shell (238) and have limiting plate (233), two both ends between limiting plate (233) and filtering shell (231) are all fixed mounting has spring (234).

6. The apparatus for increasing the temperature of combustion air by using high-temperature flue gas according to claim 4, wherein: one side of the filter shell (231) far away from the servo motor (235) is fixedly communicated with the conveying pipeline (24), and one side of the filter shell (231) far away from the conveying pipeline (24) is fixedly communicated with the air supply pipeline (22).