CN217209425U

CN217209425U - Outlet flue of flue gas heater

Info

Publication number: CN217209425U
Application number: CN202220937939.0U
Authority: CN
Inventors: 黄尚渭; 杨文浩; 于宝磊; 徐宪泉
Original assignee: Xinguang Lvhuan Recycling Resource Co ltd
Current assignee: Xinguang Lvhuan Recycling Resource Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-08-16
Anticipated expiration: 2032-04-21

Abstract

The utility model discloses a flue gas heater outlet flue, including flue gas heater, flue pipe entrance point with flue gas heater's exit end intercommunication, the flue pipe includes down pipeline and upward pipeline, down pipeline and upward pipeline constitute U type structure, flue pipe bottom intercommunication department is provided with the outlet, and the outlet connection has the drainage subassembly. The utility model discloses the flue pipe design has changed the flue gas flow direction of gas heater export for U type structure to the water that can make the flue pipe is discharging from the flue pipe through the outlet at the in-process whereabouts that changes the inflow direction, and the water of avoiding in the flue pipe is brought into draught fan and back end flue, avoids the corruption of draught fan and back end flue.

Description

Outlet flue of flue gas heater

Technical Field

The utility model relates to the field of mechanical equipment, especially, relate to a flue gas heater export flue.

Background

Flue gas heaters have been widely used in various industrial fields as important equipment for heating flue gas. In the prior art, a straight pipe is arranged from the flue outlet of the flue gas heater to the induced draft fan, a large amount of water is generated due to the fact that the flue gas contains a large amount of water vapor or the flue gas heater is flushed, the water in the flue pipe is completely pumped into the induced draft fan, and accumulated water is caused in the induced draft fan after the water passes through the induced draft fan, so that the induced draft fan and a follow-up flue are corroded.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a flue gas heater export flue.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

the utility model provides a flue gas heater export flue, includes flue gas heater, flue pipe entrance point with flue gas heater's exit end intercommunication, the flue pipe includes downstream pipeline and ascending pipeline, downstream pipeline and ascending pipeline constitute U type structure, flue pipe bottom portion intercommunication department is provided with the outlet, the outlet connection has drainage component.

Further, one or more water blocking assemblies are arranged on the inner wall of the ascending pipeline.

Furthermore, two water blocking pieces are arranged in the ascending pipeline, and the two water blocking assemblies are arranged on the inner wall of the ascending pipeline at intervals.

Furthermore, the water blocking assembly is a water blocking plate, and a plurality of drain holes are formed in the bottom of the water blocking plate.

Furthermore, the water outlet is communicated with a water drainage pipeline.

Further, drainage pipe includes vertical drain pipe, collecting main, horizontal drain pipe, U type drain pipe, vertical drain pipe intake end with the outlet intercommunication, collecting main intake end and vertical drain pipe drainage end intercommunication, and collecting main drainage end is through horizontal drain pipe and U type drain pipe intake end intercommunication.

Further, the water collecting main pipe is spherical.

Compared with the prior art, the utility model discloses following technological effect has:

the utility model discloses flue pipe design is U type structure, has changed the flue gas flow direction of flue gas heater export, can make the water of flue pipe at the in-process whereabouts that changes the inflow direction, and the water that makes the flue pipe through the outlet is discharged from the flue pipe, and this water after having just avoided the flue pipe is brought into draught fan and back end flue pipe, and then avoids the corruption of draught fan and back end flue pipe.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural view of the drainage assembly of the present invention;

fig. 3 is a schematic structural view of the water blocking plate of the present invention.

In the drawings, the parts names represented by the respective reference numerals are listed as follows:

1. a flue gas heater; 2. a down pipe; 3. an ascending pipe; 4. a water blocking plate; 5. a water discharge port; 6. a water collecting main pipe; 7. a vertical drain pipe; 8. a horizontal drain pipe; 9. u-shaped drain pipe.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Fig. 1 is a schematic structural diagram of the present invention. Referring to fig. 1, a flue gas heater export flue, includes flue gas heater 1, flue pipe entrance point with flue gas heater 1's exit end intercommunication, flue pipe includes downstream 2 and upstream 3 pipelines, downstream 2 and upstream 3 pipelines constitute U type structure, flue pipe bottom intercommunication department is provided with outlet 5, outlet 5 is connected with the drainage subassembly.

The flue pipe sets up to U type and opening upwards, has changed the flue gas flow direction of 1 export of gas heater, can make the water of flue pipe at the in-process whereabouts that changes the inflow direction to concentrate the well lower part of U type flue pipe along the pipe wall of U type flue pipe, reduce the corruption of follow-up pipeline and draught fan, and flue socle portion intercommunication is provided with the outlet, can in time discharge the water of flue pipe through drainage component.

Fig. 2 is a schematic structural view of the drainage assembly of the present invention. Referring to fig. 1-2, the drainage assembly comprises a vertical drainage pipe 7, a water collecting main pipe 6, a horizontal drainage pipe 8 and a U-shaped drainage pipe 9, wherein the water inlet end of the vertical drainage pipe 7 is communicated with the drainage port 5, the water inlet end of the water collecting main pipe 6 is communicated with the water outlet end of the vertical drainage pipe 7, and the water outlet end of the water collecting main pipe 6 is communicated with the water inlet end of the U-shaped drainage pipe 9 through the horizontal drainage pipe 8. Further, the water collecting main pipe is spherical. The arrangement of the drainage pipeline can collect and discharge water entering the flue pipe, and the U-shaped drainage pipe 9 does not influence the negative pressure of the system and does not need to be manually opened and closed for drainage.

The inner wall of the ascending pipeline 3 is provided with one or more water blocking assemblies, for example, two water blocking members, namely a first water blocking assembly and a second water blocking assembly, may be arranged in the ascending pipeline, and the two water blocking assemblies are arranged on the inner wall of the ascending pipeline 3 at intervals. The first subassembly that blocks water that sets up in the upward pipeline, the water that can make the entering flue pipe slows down here, and flow to 5 directions in outlet of flue socle portion, the subassembly that blocks water through the second that sets up, the realization is slowed down more thoroughly with the water that gets into the flue pipe, the water that makes the flue pipe concentrates on the bottom of U type flue pipe in the flue pipe, and then discharge from outlet 5, thereby the water of having avoided getting into the flue pipe is brought into draught fan and back end flue, and then avoid the corruption of draught fan and back end flue. Wherein, the subassembly that blocks water is water-blocking plate 4, and fig. 3 is the utility model discloses water-blocking plate's structural schematic diagram refers to fig. 3, and 4 shapes of water-blocking plate and flue pipe inner wall shape looks adaptations, and water-blocking plate 4 bottoms are provided with a plurality of hydrophobic mouths, and the bottom of U type flue pipe is in time refluxed to the intraductal water of the flue of being convenient for.

The utility model discloses the flue pipe is U type structure, has changed the flue gas flow direction of flue gas heater export, can make the water of flue pipe fall in the process that changes the inflow direction, and set up the subassembly that blocks water in the ascending pipeline, can make the water that gets into the flue pipe slow down, and flow to the outlet direction of bottom, the water of outlet passes through the water drainage subassembly and discharges the water in the flue pipe, avoided draught fan impeller and back end flue pipe to corrode, reduce the running cost; the drainage component comprises a U-shaped drainage pipe, the U-shaped drainage pipe does not influence the negative pressure of the system and does not need manual switching for drainage, and automatic drainage is realized.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a flue gas heater export flue, includes flue gas heater, flue pipe entrance point with flue gas heater's exit end intercommunication, its characterized in that, the flue pipe includes downstream pipeline and ascending pipeline, downstream pipeline and ascending pipeline constitute U type structure, flue pipe bottom intercommunication department is provided with the outlet, the outlet connection has the drainage subassembly.

2. A flue gas heater outlet flue as claimed in claim 1 wherein the inner wall of the upgoing duct is provided with one or more water blocking components.

3. The flue gas heater outlet duct of claim 2, wherein two water blocking members are provided in the ascending duct, and wherein the two water blocking members are spaced apart from each other on an inner wall of the ascending duct.

4. The outlet flue of a flue gas heater according to claim 3, wherein the water blocking assembly is a water blocking plate, and a plurality of water drainage ports are arranged at the bottom of the water blocking plate.

5. The outlet flue of a flue gas heater as recited in claim 1, wherein the drain assembly comprises a vertical drain pipe, a main water collecting pipe, a horizontal drain pipe, and a U-shaped drain pipe, wherein the water inlet end of the vertical drain pipe is communicated with the drain opening, the water inlet end of the main water collecting pipe is communicated with the water outlet end of the vertical drain pipe, and the water outlet end of the main water collecting pipe is communicated with the water inlet end of the U-shaped drain pipe through the horizontal drain pipe.

6. The flue gas heater outlet flue of claim 5 wherein said water collection header is spherical.