CN212005746U

CN212005746U - Flue gas cooling device

Info

Publication number: CN212005746U
Application number: CN201922351136.8U
Authority: CN
Inventors: 刘庆成; 王华廷
Original assignee: Shandong Tiantai Steel Plastic Co ltd
Current assignee: Shuize Festival (Shandong) Environmental Protection Technology Co.,Ltd.
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-11-24
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a flue gas cooling device, which comprises a sleeve with a rectangular cross section, wherein the top surface of the sleeve is provided with a top plate, the centroid of the top plate is provided with an exhaust pipe with an upward opening, and the exhaust pipe is provided with a draught fan; a horizontally arranged spraying pipe network and a plurality of metal inclined plates which are arranged in parallel are sequentially connected in the sleeve from top to bottom; a plurality of metal flue gas pipelines which are transversely arranged and penetrate through the metal inclined plates; the left end of the metal flue gas pipeline is connected with a longitudinally arranged gas distribution bag, and the right end of the metal flue gas pipeline is connected with a longitudinally arranged gas collection bag; a plurality of support columns are vertically arranged at the bottoms of the sleeve and the metal inclined plate; a water tank is arranged on the ground right below the sleeve; and flow control valves are arranged at the positions of the metal flue gas pipelines, which are close to the gas collecting bag. The utility model has the characteristics of the heat transfer efficient.

Description

Flue gas cooling device

Technical Field

The invention relates to the technical field of petrochemical equipment, in particular to a flue gas cooling device.

Background

The flue gas heat exchanger is a device which uses water as a circulating coolant, absorbs heat from a flue gas pipeline and discharges the heat to the outside so as to reduce the temperature of the flue gas.

The patent with publication number CN102658016A discloses a method for ammonia desulphurization of flue gas and by-production of high-purity ammonium bisulfite, which comprises combusting solid matter rich in sulfur to generate flue gas rich in high-concentration sulfur dioxide gas; the flue gas enters a cyclone separator for dust removal, the flue gas after dust removal enters a heat exchanger, the temperature is reduced to 60-70 ℃, and the process of accurately cooling the flue gas is difficult to realize by the conventional heat exchange device. Most of the existing cooling devices are of circular single-body structures with cross sections, the devices operate independently, and the actual operating power of each cooling device is within a certain range, so that the single-body structures are difficult to meet the requirements when a large amount of cooling is needed in a short time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flue gas heat exchanger to prior art's not enough.

The utility model adopts the technical proposal as follows.

The utility model provides a flue gas heat sink which characterized in that: the device comprises a sleeve with a rectangular cross section, wherein a top plate is arranged on the top surface of the sleeve, an exhaust pipe with an upward opening is arranged on the centroid of the top plate, and a draught fan is arranged on the exhaust pipe; the cross section of the exhaust pipe from the connecting end with the top plate to the top end of the exhaust pipe is gradually changed into a circle from a rectangle.

A horizontally arranged spraying pipe network and a plurality of metal inclined plates which are arranged in parallel are sequentially connected in the sleeve from top to bottom; a plurality of metal flue gas pipelines which are transversely arranged and penetrate through the metal inclined plates; the left end of the metal flue gas pipeline is connected with a longitudinally arranged gas distribution bag, a main gas inlet is arranged on the gas distribution bag, and a main gas inlet pipe is arranged on the main gas inlet; the right end of each metal flue gas pipeline is connected with a longitudinally arranged gas collecting bag, a main gas outlet is arranged on the gas collecting bag, the main gas outlet is connected with a main gas outlet pipe, and an exhaust fan is arranged on the main gas outlet pipe; a plurality of support columns are vertically arranged at the bottoms of the sleeve and the metal inclined plate; a water tank is arranged on the ground right below the sleeve; the bottom end of the supporting column is arranged on the bottom surface of the water tank; the spraying pipe network is connected with the water tank through a water pump; a plurality of spray heads are arranged on the spray pipe network; the bottom surface of the sleeve is higher than the ground; and flow control valves are arranged at the positions of the metal flue gas pipelines, which are close to the gas collecting bag.

As preferred technical scheme, the draught fan includes gear motor, driving motor, a plurality of fan blade, and the fan blade is installed on gear motor, and gear motor links to each other with driving motor through the transmission shaft that the level set up to.

As a preferred technical scheme, the included angle between the metal inclined plate and the ground is 75-85 degrees.

As preferred technical scheme, the side of sleeve is equipped with the cat ladder of connecting roof and ground.

As preferred technical scheme, the rail is equipped with around the roof.

Preferably, the sleeve is made of iron.

As the preferred technical scheme, the support column is a reinforced concrete support column.

As a preferred technical scheme, the air collecting bag is provided with a temperature measuring device.

As preferred technical scheme, telescopic bottom is connected with prevents the dryer that splashes, prevents that the bottom surface of dryer that splashes is higher than ground, prevents being equipped with a plurality of through-holes on the dryer that splashes.

The utility model has the advantages that: the cross section of the flue gas heat exchanger is rectangular, when required, a plurality of flue gas heat exchangers can be arranged side by side, and the occupied area is smaller. Be equipped with the draught fan, can follow gas heater ware top convulsions, be equipped with branch gas pocket and metal flue gas pipeline and be close to and catchment the gas pocket position and be equipped with flow control valve, when single metal flue gas pipeline cooling does not reach the requirement, can be through the size of control flow control valve, the size that the control was admitted air, holistic cooling efficiency is better. The metal inclined plate plays a role of a radiating fin of the flue gas pipeline, and water sprayed out of the spraying pipe network can be placed by the metal inclined plate and directly falls into the water tank. The cross section of the exhaust pipe from the end connected with the top plate to the top end of the exhaust pipe is gradually changed into a circle from a rectangle, the air flow can be gradually contracted from the square to the circle, and the air flow field is smooth and has no air flow vortex and dead angle.

Drawings

Fig. 1 is a top view of a preferred embodiment of the flue gas cooling device of the present invention.

Fig. 2 is a partially enlarged view of a portion G of fig. 1.

Fig. 3 is a partially enlarged view of a portion H of fig. 1.

FIG. 4 is a cross-sectional view A-A' of the smoke temperature reduction device of FIG. 1.

FIG. 5 is a cross-sectional view B-B' of the smoke temperature reduction device of FIG. 1.

FIG. 6 is a cross-sectional view of the flue gas temperature reduction device of FIG. 1 taken along C-C'.

FIG. 7 is a cross-sectional view of the smoke temperature reduction device of FIG. 6 taken along D-D'.

FIG. 8 is a cross-sectional view of the smoke temperature reduction device of FIG. 6 taken along E-E'.

FIG. 9 is a cross-sectional view of the smoke temperature reduction device of FIG. 6 taken along F-F'.

Fig. 10 is a schematic structural view of a preferred embodiment of the flue gas cooling device of the present invention.

Wherein: a sleeve-1; a top plate-2; a draught fan-3; a spray pipe network-4; a metal inclined plate-5; a metal flue gas duct-6; a gas distribution bag-7; total gas inlet-8; a total air inlet pipe-9; a gas collection bag-10; a total air outlet-11; a main gas outlet pipe-12; an exhaust fan-13; a support post-14; a water tank-15; a spray head-16; a flow control valve-17; a reduction motor-18; a drive motor-19; a fan blade-20; a transmission shaft-21; a ladder stand-22; a rail-23; temperature measuring means-24; an anti-splash wind cone-25; a water pump-26; an exhaust pipe-27.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments, but the scope of the present invention is not limited to the following specific embodiments.

Example 1. As shown in fig. 1-9, a flue gas cooling device comprises a sleeve 1 with a rectangular cross section, a top plate 2 is arranged on the top surface of the sleeve 1, an exhaust pipe 27 with an upward opening is arranged on the centroid of the top plate 2, and an induced draft fan 3 is arranged on the exhaust pipe 27; the cross section of the exhaust pipe 27 gradually changes from a rectangle to a circle from the end connected with the top plate 2 to the top end of the exhaust pipe 27.

A horizontally arranged spraying pipe network 4 and a plurality of metal inclined plates 5 which are arranged in parallel are sequentially connected in the sleeve 1 from top to bottom; a plurality of metal flue gas pipelines 6 which are transversely arranged and penetrate through the metal inclined plates 5; the left end of the metal flue gas pipeline 6 is connected with a longitudinally arranged gas distribution bag 7, a main gas inlet 8 is arranged on the gas distribution bag 7, and a main gas inlet pipe 9 is arranged on the main gas inlet 8; the right end of each metal flue gas pipeline 6 is connected with a longitudinally arranged gas collecting bag 10, a main gas outlet 11 is arranged on the gas collecting bag 10, the main gas outlet 11 is connected with a main gas outlet pipe 12, and an exhaust fan 13 is arranged on the main gas outlet pipe 12; a plurality of supporting columns 14 are vertically arranged at the bottoms of the sleeve 1 and the metal inclined plate 5; a water tank 15 is arranged on the ground right below the sleeve 1; the bottom end of the supporting column 14 is arranged on the bottom surface of the water tank 15; the spraying pipe network 4 is connected with the water tank 15 through a water pump 26; a plurality of spray heads 16 are arranged on the spray pipe network 4; the bottom surface of the sleeve 1 is higher than the ground; and flow control valves 17 are arranged at the positions of the metal flue gas pipelines 6 close to the gas collecting bag 10.

The draught fan 3 comprises a speed reducing motor 18, a driving motor 19 and a plurality of fan blades 20, the fan blades 20 are installed on the speed reducing motor 18, and the speed reducing motor 18 is connected with the driving motor 19 through a transmission shaft 21 which is horizontally arranged.

The included angle between the metal inclined plate 5 and the ground is 75-85 degrees.

The side of the sleeve 1 is provided with a ladder 22 connecting the top plate 2 and the ground.

The periphery of the top plate 2 is provided with a fence 23.

The sleeve 1 is an iron sleeve 1.

The support columns 14 are reinforced concrete columns.

The air collection bag 10 is provided with a temperature measuring device 24.

Example 2. As shown in fig. 10, the present embodiment is different from embodiment 1 in that: the bottom end of the sleeve is connected with an anti-splashing air duct 25, the bottom surface of the anti-splashing air duct 25 is higher than the ground, and a plurality of through holes are formed in the anti-splashing air duct 25.

The above-mentioned embodiments are only for understanding the present invention, and are not intended to limit the technical solutions of the present invention, and those skilled in the relevant art can make various changes or modifications based on the technical solutions described in the claims, and all equivalent changes or modifications should be covered by the scope of the claims of the present invention. The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. The utility model provides a flue gas heat sink which characterized in that: the device comprises a sleeve (1) with a rectangular cross section, wherein a top plate (2) is arranged on the top surface of the sleeve (1), an exhaust pipe (27) with an upward opening is arranged on the centroid of the top plate (2), and a draught fan (3) is arranged on the exhaust pipe (27); the cross section of the exhaust pipe (27) gradually changes from a rectangle to a circle from the end connected with the top plate (2) to the top end of the exhaust pipe (27);

a horizontally arranged spraying pipe network (4) and a plurality of metal inclined plates (5) which are arranged in parallel are sequentially connected in the sleeve (1) from top to bottom; a plurality of metal flue gas pipelines (6) which are transversely arranged and penetrate through the metal inclined plates (5); the left end of the metal flue gas pipeline (6) is connected with a longitudinally arranged gas distribution bag (7), a main gas inlet (8) is arranged on the gas distribution bag (7), and a main gas inlet pipe (9) is arranged on the main gas inlet (8); the right end of each metal flue gas pipeline (6) is connected with a longitudinally arranged gas gathering bag (10), a main gas outlet (11) is arranged on the gas gathering bag (10), the main gas outlet (11) is connected with a main gas outlet pipe (12), and an exhaust fan (13) is arranged on the main gas outlet pipe (12); a plurality of supporting columns (14) are vertically arranged at the bottoms of the sleeve (1) and the metal inclined plate (5); a water tank (15) is arranged on the ground right below the sleeve (1); the bottom end of the supporting column (14) is arranged on the bottom surface of the water tank (15); the spraying pipe network (4) is connected with the water tank (15) through a water pump (26); a plurality of spray heads (16) are arranged on the spraying pipe network (4); the bottom surface of the sleeve (1) is higher than the ground; flow control valves (17) are arranged at the positions of the metal flue gas pipelines (6) close to the gas gathering bag (10).

2. The flue gas cooling device according to claim 1, wherein: draught fan (3) include gear motor (18), driving motor (19), a plurality of fan blade (20), and fan blade (20) are installed on gear motor (18), and gear motor (18) link to each other with driving motor (19) through level to transmission shaft (21) that sets up.

3. The flue gas cooling device according to claim 1, wherein: the included angle between the metal inclined plate (5) and the ground is 75-85 degrees.

4. The flue gas cooling device according to claim 1, wherein: the side surface of the sleeve (1) is provided with a ladder (22) for connecting the top plate (2) and the ground.

5. The flue gas cooling device according to claim 4, wherein: the periphery of the top plate (2) is provided with a fence (23).

6. The flue gas cooling device according to claim 1, wherein: the sleeve (1) is an iron sleeve (1).

7. The flue gas cooling device according to claim 1, wherein: the supporting columns (14) are reinforced concrete supporting columns.

8. The flue gas cooling device according to claim 1, wherein: the air collection bag (10) is provided with a temperature measuring device (24).

9. The flue gas cooling device according to claim 1, wherein: the bottom end of the sleeve is connected with an anti-splashing air duct (25), the bottom surface of the anti-splashing air duct (25) is higher than the ground, and a plurality of through holes are formed in the anti-splashing air duct (25).