CN212511218U

CN212511218U - Boiler steam pipeline tail gas recovery device

Info

Publication number: CN212511218U
Application number: CN202020709078.1U
Authority: CN
Inventors: 陈溪福
Original assignee: Xingang Thermal Engineering Zhangzhou Co ltd
Current assignee: Xingang Thermal Engineering Zhangzhou Co ltd
Priority date: 2020-05-01
Filing date: 2020-05-01
Publication date: 2021-02-09
Anticipated expiration: 2030-05-01

Abstract

The utility model relates to a boiler steam pipeline tail gas recovery device, which comprises a boiler, wherein the boiler is communicated with a recovery bin through an exhaust pipe; a first filter screen, a second filter screen and a third filter screen are sequentially arranged in the recovery bin from left to right, an ash deposition bin is arranged at the bottom of the recovery bin, the heat exchange tube is arranged at intervals with the first filter screen, the second filter screen and the third filter screen, cleaning rods are arranged on the left sides of the first filter screen, the second filter screen and the third filter screen, through grooves are formed in the bottoms of the cleaning rods, plug plates are arranged in the through grooves, and the plug plates are fixedly connected with the cleaning rods; the top of the recovery bin is uniformly provided with a plurality of pull rods, and the bottom of each pull rod is fixedly connected with a cleaning rod and drives the cleaning rods to slide up and down. The heat exchange tube and the filter screen are simultaneously arranged in the recovery bin, and the filter screen delays the flow velocity of the waste gas while filtering dust in the waste gas, so that the waste gas and the heat exchange tube are fully contacted for heat exchange, and the energy loss is reduced; the motor drives the cleaning rod to move up and down to clean the surface of the filter screen, the plug plate moves along with the cleaning rod, and dust enters the dust accumulation bin through the through groove, so that the dust is conveniently discharged outside.

Description

Boiler steam pipeline tail gas recovery device

Technical Field

The utility model relates to a boiler steam pipeline tail gas recovery device technical field, concretely relates to boiler steam pipeline tail gas recovery device.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, and the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy. Steam is widely applied to industrial production and living facilities, and processes such as heating, drying, heat preservation, disinfection, cooking, concentration, heat exchange, heating, air conditioning and the like are carried out by utilizing steam no matter in a steam conveying pipeline system. The temperature of the tail gas discharged by the boiler is very high, and the direct discharge not only has resource waste, but also has great high-temperature smoke pollution.

In the patent document of patent No. CN209279189U, a boiler tail gas recovery unit is disclosed, which comprises a boiler, stoving case and water tank, the gas vent department of boiler is provided with first blast pipe, the stoving case includes filter chamber and drying chamber, the one end and the filter chamber of first blast pipe meet, the inside setting of filter chamber distributes side by side has first filter plate, second filter plate and third filter plate, the top of drying chamber is provided with the second blast pipe, the inside of water tank is provided with heat exchange coil, the top of water tank is provided with the mouth of pipe of intaking, the bottom of water tank is provided with the mouth of pipe of intaking, one side of water tank is provided with the third blast pipe. The device has the disadvantages that firstly, the device filters the flue gas firstly and recovers heat, and the heat is lost greatly in the filtering process; secondly, the filter screen of the device is difficult to clean.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned problem among the prior art, provide a boiler steam pipeline tail gas recovery unit.

The utility model relates to a boiler steam pipeline tail gas recovery device, which comprises a boiler and is characterized in that one side of the boiler is provided with an air inlet pipe, the other side of the boiler is provided with an exhaust pipe, and the exhaust pipe is communicated with a recovery bin; an exhaust pipe is arranged on one side, away from the exhaust pipe, of the recovery bin, a plurality of heat exchange pipes are uniformly arranged in the recovery bin, a first filter screen, a second filter screen and a third filter screen are sequentially arranged in the recovery bin from left to right, an ash deposition bin is arranged at the bottom of the recovery bin, an ash discharge pipe is communicated with the bottom of the ash deposition bin, the heat exchange pipes are arranged at intervals with the first filter screen, the second filter screen and the third filter screen, cleaning rods are uniformly arranged on the left sides of the first filter screen, the second filter screen and the third filter screen, through grooves are formed in the bottoms of the cleaning rods and communicated with the recovery bin and the ash deposition bin, plug plates are arranged in the through grooves, and the tops of the plug plates are fixedly connected with the corresponding cleaning;

the top of the recovery bin is provided with a mounting plate through a supporting rod, a plurality of pull rods are uniformly arranged on the mounting plate, springs are arranged on the outer walls of the pull rods, and the bottoms of the pull rods are fixedly connected with corresponding cleaning rods and drive the cleaning rods to slide up and down.

Furthermore, a water pump is arranged at the top of the recovery bin, a water inlet of the water pump is externally connected with a water source, a water outlet of the water pump is externally connected with a conversion bin, the conversion bin is arranged at the top of the recovery bin, a liquid outlet of the conversion bin is externally connected with a water pipeline, the water pipeline is communicated with the top end of the heat exchange tube, and a drainage pipeline is connected to the bottom end of the heat exchange tube.

Further, the outer wall of the recovery bin is wrapped with a heat insulation layer, and the heat exchange tube is a serpentine pipeline made of metal.

Further, clean pole sets up sealed the pad with retrieving the storehouse junction, the cock board uses with logical groove cooperation to keep apart and retrieves storehouse and deposition storehouse, fixed mounting heat insulating mattress on the cock board downside.

Further, the first, second, and third screens have screen apertures that gradually decrease.

Furthermore, the pull rod is arranged on the mounting plate in a sliding mode, the top of the pull rod is fixedly connected with the connecting plate, the bottom of the pull rod is fixedly connected with the sliding plate, the spring is arranged between the sliding plate and the mounting plate, the top of the connecting plate is fixedly connected with a rack, an incomplete gear is arranged on the rack in a meshed mode, the center of the incomplete gear is connected with an output shaft of the motor, and the motor is fixedly mounted at the top of the recovery bin.

Compared with the prior art, the utility model has the advantages of as follows:

1. the utility model discloses install heat exchange tube and filter screen simultaneously in retrieving the storehouse, evenly set up a plurality of heat exchange tubes along the waste gas flow direction in retrieving the storehouse, the filter screen when filtering waste gas in the dust, delay waste gas flow velocity, make waste gas and heat exchange tube fully contact the heat transfer, reduce energy loss.

2. The utility model discloses at the clean pole of filter screen side installation, the output shaft rotation of motor drives the rack and reciprocates to drive clean pole and reciprocate and clear up the filter screen surface, drive the cock board when clearing up the pole about, make things convenient for the dust to get into the deposition storehouse through leading to the groove, arrange the dust outward.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a boiler steam pipeline tail gas recovery device of the present invention;

fig. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic side view of an incomplete gear of the present invention;

fig. 4 is an enlarged schematic view of the utility model at a;

fig. 5 is a schematic view of the heat exchange tube of the present invention.

The reference numbers are as follows:

1-boiler, 101-air inlet pipe, 102-air outlet pipe, 2-recovery bin, 201-air outlet pipe, 202-through groove, 3-ash deposition bin, 4-water pump, 5-conversion bin, 6-water conveying pipeline, 7-water discharging pipeline, 8-heat exchange pipe, 9-heat insulation layer, 10-third filter screen, 11-second filter screen, 12-first filter screen, 13-cleaning rod, 14-plug plate, 15-heat insulation pad, 16-sealing pad, 17-sliding plate, 18-spring, 19-supporting rod, 20-mounting plate, 21-pull rod, 22-connecting plate, 23-rack, 24-incomplete gear and 25-motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-5, a boiler steam pipeline tail gas recovery device comprises a boiler 1, wherein an air inlet pipe 101 is arranged at one side of the boiler 1, an exhaust pipe 102 is arranged at the other side of the boiler 1, and the exhaust pipe 102 is communicated with a recovery bin 2; an exhaust pipe 201 is arranged on one side of the recovery bin 2 far away from the exhaust pipe 102, a plurality of heat exchange pipes 8 are uniformly arranged in the recovery bin 2, and the heat exchange pipes 8 are serpentine pipes made of metal; wrap up insulating layer 9 on retrieving 2 outer walls in storehouse, retrieve 2 tops in storehouse and set up water pump 4, the external water source of water inlet of water pump 4, the external conversion storehouse 5 in outlet of water pump 4, conversion storehouse 5 sets up at retrieving 2 tops in storehouse, and the external conduit 6 of leakage fluid dram in conversion storehouse 5, conduit 6 and the setting of 8 top intercommunications of heat exchange tube, 8 bottom connections of heat exchange tube set up drainage pipe 7.

A first filter screen 12, a second filter screen 11 and a third filter screen 10 are sequentially arranged in the recovery bin 2 from left to right, the diameters of filter screen holes of the first filter screen 12, the second filter screen 11 and the third filter screen 10 are gradually reduced, an ash deposition bin 3 is arranged at the bottom of the recovery bin 2, an ash discharge pipe 301 is communicated with the bottom of the ash deposition bin 3, a heat exchange pipe 8 is arranged at intervals with the first filter screen 12, the second filter screen 11 and the third filter screen 10, cleaning rods 13 are uniformly arranged at the left sides of the first filter screen 12, the second filter screen 11 and the third filter screen 10, through grooves 202 are arranged at the bottom of the cleaning rods 13, the through grooves 202 are communicated with the recovery bin 2 and the ash deposition bin 3, plug plates 14 are arranged in the through grooves 202, and the tops of the plug plates 13; the plug plate 14 is matched with the through groove 202 to be used for isolating the recovery bin 2 and the dust accumulation bin 3, and the heat insulation pad 15 is fixedly arranged on the lower side surface of the plug plate 14.

The top of the recovery bin 2 is provided with an installation plate 20 through a support rod 19, the installation plate 20 is uniformly provided with a plurality of pull rods 21 in a sliding manner, the outer walls of the pull rods 21 are provided with springs 18, the bottoms of the pull rods 21 are fixedly connected with corresponding cleaning rods 13, the tops of the pull rods 21 are fixedly connected with a connecting plate 22, the bottoms of the pull rods 21 are fixedly connected with a sliding plate 17, the springs 18 are arranged between the sliding plate 17 and the installation plate 20, the tops of the connecting plate 22 are fixedly connected with a rack 23, the rack 23 is engaged with an incomplete gear 24, the center of the incomplete gear 23 is connected with an; a sealing gasket 16 is arranged at the joint of the cleaning rod 13 and the recovery bin 2.

The working principle of the embodiment is as follows:

during the use, during waste gas got into recovery storehouse 2 through exhaust pipe 102, water pump 4 external water source constantly added the cooling water to in the heat exchange tube 8, the cooling water removes to drainage pipe 7 under the action of gravity in heat exchange tube 8, and high temperature waste gas and the contact of heat exchange tube 8 heat the heat transfer to the cooling water, and the cooling water after the heat transfer is discharged through drainage pipe 7 and is utilized. The first filter screen 12, the second filter screen 11 and the third filter screen 10 sequentially filter the waste gas, and gradually reduce the dust content in the waste gas.

When the filter screen needs to be cleaned, the output shaft of the driving motor 25 rotates to drive the incomplete gear 24 to rotate, the rack 23 is driven to move up and down intermittently, the cleaning rod 13 is driven to move up and down, the brush on the cleaning rod 13 is used for cleaning the surface of the filter screen, the plug plate 14 is driven to move up and down while the cleaning rod 13 moves up and down, dust conveniently enters the dust collecting bin 3 through the through groove 202, and the dust is conveniently discharged outside.

The water pump 4 and the motor 25 are externally connected with a power supply, the control mode is common knowledge, and the detailed description is not repeated.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A boiler steam pipeline tail gas recovery device comprises a boiler (1), and is characterized in that an air inlet pipe (101) is arranged on one side of the boiler (1), an exhaust pipe (102) is arranged on the other side of the boiler (1), and the exhaust pipe (102) is communicated with a recovery bin (2); an exhaust pipe (201) is arranged on one side, far away from an exhaust pipe (102), of the recovery bin (2), a plurality of heat exchange pipes (8) are evenly arranged in the recovery bin (2), a first filter screen (12), a second filter screen (11) and a third filter screen (10) are sequentially arranged in the recovery bin (2) from left to right, an ash deposition bin (3) is arranged at the bottom of the recovery bin (2), an ash discharge pipe (301) is communicated with the bottom of the ash deposition bin (3), the heat exchange pipes (8) are communicated with the first filter screen (12), the second filter screen (11) and the third filter screen (10) at intervals, an equal cleaning rod (13) is arranged on the left side of the first filter screen (12), the second filter screen (11) and the third filter screen (10), a through groove (202) is arranged at the bottom of the cleaning rod (13), the through groove (202) is communicated with the recovery bin (2) and the ash deposition bin (3), and a plug plate (14) is arranged, the top of the plug plate (14) is fixedly connected with a corresponding cleaning rod (13);

retrieve storehouse (2) top and pass through bracing piece (19) installation mounting panel (20), evenly be provided with a plurality of pull rods (21) on mounting panel (20), set up spring (18) on pull rod (21) outer wall, pull rod (21) bottom rigid coupling corresponding clean pole (13) and drive clean pole (13) and slide from top to bottom.

2. The boiler steam pipeline tail gas recovery device of claim 1, characterized in that: retrieve storehouse (2) top and set up water pump (4), the external water source of water inlet of water pump (4), the external conversion storehouse (5) of outlet of water pump (4), conversion storehouse (5) set up at retrieving storehouse (2) top, the external conduit (6) of leakage fluid dram of conversion storehouse (5), conduit (6) and heat exchange tube (8) top intercommunication set up, heat exchange tube (8) bottom is connected and is set up drainage pipe (7).

3. The boiler steam pipeline tail gas recovery device of claim 1, characterized in that: the outer wall of the recovery bin (2) is wrapped with a heat insulation layer (9), and the heat exchange tube (8) is a serpentine pipeline made of metal.

4. The boiler steam pipeline tail gas recovery device of claim 1, characterized in that: clean pole (13) and retrieve storehouse (2) junction and set up sealed pad (16), storehouse (2) and deposition storehouse (3) are retrieved in isolation to cock board (14) and logical groove (202) cooperation use, fixed mounting heat insulating mattress (15) on cock board (14) downside.

5. The boiler steam pipeline tail gas recovery device of claim 1, characterized in that: the first sieve (12), the second sieve (11) and the third sieve (10) have gradually decreasing sieve pore sizes.

6. The boiler steam pipeline tail gas recovery device of claim 1, characterized in that: pull rod (21) sliding setting on mounting panel (20), top fixed connection connecting plate (22) of pull rod (21), bottom fixed connection slide (17), spring (18) set up between slide (17) and mounting panel (20), connecting plate (22) top rigid coupling rack (23), the meshing sets up incomplete gear (24) on rack (23), incomplete gear (24) center department connects the output shaft of motor (25), motor (25) fixed mounting is at recovery bin (2) top.