CN217585465U

CN217585465U - Boiler flue gas waste heat recovery device

Info

Publication number: CN217585465U
Application number: CN202221774992.XU
Authority: CN
Inventors: 张新建; 韩军义
Original assignee: Xinjiang Jiruifeng Thermal Power Co ltd
Current assignee: Xinjiang Jiruifeng Thermal Power Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-10-14
Anticipated expiration: 2032-07-11

Abstract

The utility model discloses a boiler flue gas waste heat recovery device, furnace body top through connection has the blast pipe, the inboard equidistance welding of blast pipe has a plurality of to fight with higher speed, the blast pipe inboard is close to fighting position department welding with higher speed and has the speed reduction fill, the inboard through connection of blast pipe has concentrated heat transfer box, concentrate the heat transfer box top and seted up the joint fixed slot, the inboard embedding joint of joint fixed slot has the heat transfer board, blast pipe side bottom equidistance through connection has a plurality of accessory plate, dwindle the gas vent through fighting with higher speed, the exit velocity of flue gas with higher speed, the flue gas directly strikes concentrated heat transfer box and heat transfer board position department, the area of contact of flue gas and heat transfer position is increased to the speed reduction flue gas simultaneously, the rethread speed reduction is fought and is slowed down the admission speed, make the flue gas deposit can effectual extension in blast pipe inboard time, thereby can reduce indirect heating equipment's size when the heat transfer, make can guarantee the heat transfer effect when the heat transfer.

Description

Boiler flue gas waste heat recovery device

Technical Field

The utility model relates to a boiler waste heat recovery technical field specifically is a boiler flue gas waste heat recovery device.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy, the hot water or the steam generated in the boiler can directly provide heat energy for industrial production and people life, and can also be converted into mechanical energy through a steam power device or be converted into electric energy through a generator.

But at present when retrieving boiler flue gas heat, traditional indirect heating equipment area is great, and heat exchange efficiency is relatively poor, has sent the heat loss more when the heat transfer, influences the effect of heat transfer.

SUMMERY OF THE UTILITY MODEL

The utility model provides a boiler flue gas waste heat recovery device can effectively solve and propose in the above-mentioned background art when retrieving boiler flue gas heat, traditional indirect heating equipment area is great, and heat exchange efficiency is relatively poor, has leaded to the heat loss more when the heat transfer, influences the problem of the effect of heat transfer.

In order to achieve the above object, the utility model provides a following technical scheme: a boiler flue gas waste heat recovery device comprises a furnace body, wherein a heat exchange assembly is arranged on one side of the furnace body, and comprises an exhaust pipe, an acceleration hopper, a deceleration hopper, a centralized heat exchange box, a clamping fixing groove, a heat exchange plate, an auxiliary plate, a water inlet pipe, a storage box, a booster water pump, an extraction pipe, a linkage pipe and a discharge pipe;

the utility model discloses a heating device, including blast pipe, motor seat, blast pipe top through connection have the blast pipe, the inboard equidistance welding of blast pipe has a plurality of fill with higher speed, the blast pipe inboard is close to the welding of position department of fighting with higher speed and has the speed reduction fill, the inboard correspondence of blast pipe is fought with higher speed and is fought and speed reduction fill position department through connection has concentrated heat transfer box, a plurality of joint fixed slot has been seted up to concentrated heat transfer box top equidistance, joint fixed slot inboard embedding joint has the heat transfer board, blast pipe side bottom equidistance through connection has a plurality of accessory plate, is close to the concentrated heat transfer box one end through connection of blast pipe top position department has the inlet tube, the blast pipe side is close to accessory plate position department joint and is connected with the storage box, the booster water pump is installed through the motor seat in storage box top, the booster water pump inlet end is connected with the extraction pipe through connection through the adapter, two adjacent between the concentrated heat transfer box, be close to blast pipe bottom position department the concentrated heat transfer box one end through connection has the discharge pipe.

Preferably, the heat exchange plate is embedded in the inner side of the exhaust pipe, and the input end of the booster water pump is electrically connected with the output end of the external power supply.

Preferably, the auxiliary plate is inserted into and mounted inside the storage box, and the bottom end of the extraction pipe is inserted into and mounted inside the storage box.

Preferably, one side of the exhaust pipe is provided with an intercepting and collecting assembly, and the intercepting and collecting assembly comprises an intercepting screen plate, an isolating fixed sleeve, a transmission motor, a transmission rod, a cleaning scraper, a centralized fixed box, a storage fixed box and a limit baffle;

a plurality of interception otter board has been placed to the inboard one end equidistance joint of blast pipe, the inboard one end welding of blast pipe has the fixed cover of isolation, keep apart fixed cover inboard and install drive motor through the motor cabinet, drive motor output shaft joint has the transfer line, the transfer line side corresponds interception otter board position department equidistance welding and has the clean scraper blade of a plurality of, blast pipe side bottom is close to interception otter board position department through connection and concentrates fixed box, concentrate the inboard joint of fixed box and placed the fixed box of storage, the blast pipe inboard is close to the welding of concentrated fixed box position department and has limit baffle.

Preferably, the transmission rod penetrates through one end of the interception screen plate, and the input end of the transmission motor is electrically connected with the output end of the external power supply.

Preferably, the side end of the cleaning scraper is attached to the side end of the interception screen plate, and the longitudinal section of the limiting baffle is arc-shaped.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. be provided with heat exchange assembly, reduce the gas vent through fighting with higher speed, accelerate the exhaust velocity of flue gas, the flue gas directly strikes concentrated heat transfer box and heat transfer board position department, the area of contact of flue gas and heat transfer position is increased simultaneously to the speed reduction flue gas, rethread speed reduction is fought and is slowed down inlet velocity, make the flue gas stay in the blast pipe inboard time can effectual extension, thereby can reduce indirect heating equipment's size when the heat transfer, make can guarantee the heat transfer effect when the heat transfer, circulate heat transfer liquid through extraction pipe and inlet tube by booster pump, the effect of heat transfer has further been guaranteed.

2. Be provided with the interception and collect the subassembly, it is spacing to intercept through the dust impurity that a plurality of interception otter boards contain in with the flue gas, drive transfer line and clean scraper blade by drive motor and continue to carry out the cleaning that lasts to interception otter board side to strike off the accumulational impurity in interception otter board surface and break away from, and collect impurity through concentrating fixed box and the fixed box of storage, make can be quick when needs retrieve the heat handle impurity, avoid a large amount of impurity to pile up the influence heat transfer effect.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the installation structure of the exhaust pipe of the present invention;

FIG. 3 is a schematic structural view of the heat exchange assembly of the present invention;

fig. 4 is a schematic structural view of the intercepting and collecting assembly of the present invention;

reference numbers in the figures: 1. a furnace body;

2. a heat exchange assembly; 201. an exhaust pipe; 202. an acceleration bucket; 203. a speed reduction hopper; 204. a centralized heat exchange box; 205. clamping a fixing groove; 206. a heat exchange plate; 207. an auxiliary plate; 208. a water inlet pipe; 209. a storage box; 210. a booster water pump; 211. an extraction pipe; 212. a linkage pipe; 213. a discharge pipe;

3. intercepting a collection component; 301. intercepting a screen plate; 302. isolating the fixed sleeve; 303. a drive motor; 304. a transmission rod; 305. a cleaning blade; 306. a centralized fixing box; 307. a storage fixing box; 308. and a limiting baffle.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-4, the utility model provides a technical scheme, a boiler flue gas waste heat recovery device, including furnace body 1, heat exchange assembly 2 is installed to furnace body 1 one side, and heat exchange assembly 2 includes blast pipe 201, fill 202 with higher speed, fill 203 with slower speed, concentrate heat exchange box 204, joint fixed slot 205, heat exchange plate 206, accessory plate 207, inlet tube 208, storage box 209, booster pump 210, extraction pipe 211, linkage pipe 212 and discharge pipe 213;

the top end of the furnace body 1 is connected with an exhaust pipe 201 in a penetrating manner, a plurality of acceleration buckets 202 are welded on the inner side of the exhaust pipe 201 at equal intervals, a deceleration bucket 203 is welded on the inner side of the exhaust pipe 201 at a position close to the acceleration bucket 202, the inner side of the exhaust pipe 201 corresponds to the acceleration bucket 202 and the deceleration bucket 203 and is connected with a centralized heat exchange box 204 in a penetrating manner, a plurality of clamping fixing grooves 205 are formed in the top end of the centralized heat exchange box 204 at equal intervals, a heat exchange plate 206 is embedded into the inner side of the exhaust pipe 205 in a clamping manner, the heat exchange plate 206 is embedded into the inner side of the exhaust pipe 201, so that the heat exchange area can be increased when heat exchange is performed, a booster water pump 210 is installed at the top end of the storage box 209 through a motor base, an intake end of the booster water pump 210 is connected with an extraction pipe 211 through a motor base, the booster plate 207 is embedded into the inner side of the storage box 209, the bottom end of the extraction pipe 211 is embedded into the storage box 209, the bottom end of the extraction pipe 211 is installed into the storage box 209, so that the heat exchange box 204 is connected with an external power supply output end 213 and an external connection with the exhaust pipe 213.

An intercepting and collecting component 3 is arranged on one side of the exhaust pipe 201, and the intercepting and collecting component 3 comprises an intercepting screen plate 301, an isolation fixing sleeve 302, a transmission motor 303, a transmission rod 304, a cleaning scraper 305, a centralized fixing box 306, a storage fixing box 307 and a limit baffle 308;

a plurality of intercepting screen plates 301 are placed in equidistant clamping connection at one end of the inner side of an exhaust pipe 201, an isolating fixed sleeve 302 is welded at one end of the inner side of the exhaust pipe 201, a transmission motor 303 is installed on the inner side of the isolating fixed sleeve 302 through a motor base, an output shaft of the transmission motor 303 is connected with a transmission rod 304 in a clamping connection mode, the transmission rod 304 is installed at one end of the intercepting screen plates 301 in a penetrating mode and can be effectively linked, a plurality of cleaning scrapers 305 are welded at positions, corresponding to the intercepting screen plates 301, of the side ends of the transmission rod 304 in an equidistant mode, the side ends of the cleaning scrapers 305 are attached to the side ends of the intercepting screen plates 301, cleaning can be effectively scraped and cleaned in the cleaning process, a centralized fixing box 306 is connected at the bottom of the side ends of the exhaust pipe 201 in a penetrating mode near the position of the intercepting screen plates 301, a storage fixing box 307 is placed in the clamping connection mode at the inner side of the centralized fixing box 306, a limiting baffle 308 is welded at the inner side of the exhaust pipe 201 near the position of the centralized fixing box 306, the longitudinal section of the limiting baffle 308 is arc-shaped, effective intercepting screen can be effectively intercepted in the slag discharge process, impurities can be prevented from falling into a furnace body 1, and the input end of the transmission motor 303 is electrically connected with an output end of an external power supply.

The utility model discloses a theory of operation and use flow: when heat exchange is needed, high-temperature flue gas is exhausted from the boiler, the flue gas is exhausted through the exhaust pipe 201, the flue gas is intercepted through the plurality of intercepting screen plates 301, dust and impurities contained in the flue gas are intercepted and limited, the transmission motor 303 drives the transmission rod 304 to rotate, the transmission rod 304 drives the cleaning scraper 305 to continuously rotate to continuously clean the side ends of the intercepting screen plates 301, so that the impurities accumulated on the surfaces of the intercepting screen plates 301 are scraped and separated, the impurities fall to the inner side of the storage fixing box 307 positioned on the inner side of the concentrated fixing box 306, rapid collection is realized, the impurities can be rapidly treated when heat recovery is needed, the heat exchange effect is prevented from being influenced by accumulation of a large amount of impurities, the impurities are blocked by the limiting baffle 308 when the impurities are discharged, and the impurities are prevented from falling to the inner side of the boiler;

the flue gas after handling is discharged into with higher speed fill 202 position department along blast pipe 201, reduce the gas vent through fighting 202 with higher speed, accelerate the exhaust velocity of flue gas, the flue gas directly strikes concentrated heat transfer box 204 and heat transfer board 206 position department, thereby the speed of speed reduction flue gas, increase the area of contact of flue gas and heat transfer position simultaneously, rethread speed reduction fill 203 reduces the air inlet, thereby slow down the air intake velocity, make when needing to discharge the flue gas, can accelerate through the multistage, make the flue gas persist can effectual extension at blast pipe 201 inboard time, extract the inboard heat transfer liquid of storage box 209 through extraction pipe 211 by booster water pump 210, heat transfer liquid enters into inlet tube 208 inboard through extraction pipe 211, import heat transfer liquid to concentrated heat transfer box 204 inboard, thereby the heat transfer that lasts, carry out the heat transfer once more through accessory plate 207, thereby the effect of heat transfer has further been guaranteed.

Finally, it should be noted that: although the present invention has been described in detail 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 in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a boiler flue gas waste heat recovery device, includes furnace body (1), its characterized in that: a heat exchange assembly (2) is installed on one side of the furnace body (1), and the heat exchange assembly (2) comprises an exhaust pipe (201), an acceleration hopper (202), a deceleration hopper (203), a concentrated heat exchange box (204), a clamping fixing groove (205), a heat exchange plate (206), an auxiliary plate (207), a water inlet pipe (208), a storage box (209), a booster water pump (210), an extraction pipe (211), a linkage pipe (212) and a discharge pipe (213);

the top end of the furnace body (1) is connected with an exhaust pipe (201) in a penetrating way, a plurality of accelerating buckets (202) are welded on the inner side of the exhaust pipe (201) at equal intervals, a speed reduction bucket (203) is welded at the position of the inner side of the exhaust pipe (201) close to the acceleration bucket (202), the inner side of the exhaust pipe (201) is connected with a concentrated heat exchange box (204) in a penetrating way at the position corresponding to the accelerating bucket (202) and the decelerating bucket (203), a plurality of clamping fixing grooves (205) are arranged at the top end of the centralized heat exchange box (204) at equal intervals, a heat exchange plate (206) is embedded and clamped at the inner side of the clamping fixing groove (205), a plurality of auxiliary plates (207) are connected to the bottom of the side end of the exhaust pipe (201) in a penetrating way at equal intervals, one end of the concentrated heat exchange box (204) close to the top end of the exhaust pipe (201) is connected with a water inlet pipe (208) in a penetrating way, the side end of the exhaust pipe (201) close to the auxiliary plate (207) is connected with a storage box (209) in a clamping way, the top end of the storage box (209) is provided with a booster water pump (210) through a motor base, the booster pump (210) end of intaking is connected with extraction pipe (211) through the adapter, and two adjacent through connection has linkage pipe (212) between concentrated heat transfer box (204), is close to concentrated heat transfer box (204) one end through connection of blast pipe (201) bottom position department has discharge pipe (213).

2. The boiler flue gas waste heat recovery device according to claim 1, wherein the heat exchange plate (206) is embedded inside the exhaust pipe (201), and an input end of the booster water pump (210) is electrically connected with an output end of an external power supply.

3. The boiler flue gas waste heat recovery device according to claim 1, wherein the auxiliary plate (207) is embedded inside the storage tank (209), and the bottom end of the extraction pipe (211) is embedded inside the storage tank (209).

4. The boiler flue gas waste heat recovery device according to claim 1, wherein an intercepting and collecting component (3) is installed on one side of the exhaust pipe (201), and the intercepting and collecting component (3) comprises an intercepting screen plate (301), an isolation fixing sleeve (302), a transmission motor (303), a transmission rod (304), a cleaning scraper (305), a centralized fixing box (306), a storage fixing box (307) and a limit baffle (308);

a plurality of interception otter board (301) has been placed to blast pipe (201) inboard one end equidistance joint, the welding of blast pipe (201) inboard one end has the fixed cover of isolation (302), keep apart fixed cover (302) inboard and install drive motor (303) through the motor cabinet, drive motor (303) output shaft joint has transfer line (304), transfer line (304) side corresponds interception otter board (301) position equidistance welding and has a plurality of cleaning scraper (305), blast pipe (201) side bottom is close to interception otter board (301) position department through connection and concentrates fixed box (306), concentrate fixed box (307) of storage has been placed to fixed box (306) inboard joint, blast pipe (201) inboard is close to concentrated fixed box (306) position department welding and has limit baffle (308).

5. The boiler flue gas waste heat recovery device according to claim 4, wherein the transmission rod (304) is penetratingly installed at one end of the interception mesh plate (301), and an input end of the transmission motor (303) is electrically connected with an output end of an external power supply.

6. The boiler flue gas waste heat recovery device according to claim 4, wherein a side end of the cleaning scraper (305) is attached to a side end of the interception screen plate (301), and a longitudinal section of the limiting baffle (308) is arc-shaped.