CN219223443U - Flue gas waste heat utilization heat exchanger - Google Patents

Abstract

The utility model discloses a flue gas waste heat utilization heat exchanger, which relates to the technical field of heat exchangers and comprises an outer cylinder, wherein smoke outlets are densely distributed around the lower part of the outer cylinder, a filtering type heat exchange piece is arranged in the outer cylinder and comprises a cover plate covered on the upper part of the outer cylinder, a limiting cylinder is fixedly arranged at the position of the bottom of the cover plate positioned in the outer cylinder, a filter screen cylinder is arranged at the lower side of the limiting cylinder, and a smoke outlet cylinder is rotatably arranged at the position of the bottom of the cover plate positioned at the periphery of the filter screen cylinder. This flue gas waste heat utilization heat exchanger, when the heat transfer, can carry out filtration treatment to the flue gas to make clean flue gas carry out heating treatment to the spiral pipe, also can not adhere to the smoke and dust granule on the spiral pipe after a long time, and at the in-process of heat transfer, under rotating of rotating electrical machines, can make out the chimney rotatory, thereby make flue gas and spiral pipe abundant contact, also can drive L shape pole motion simultaneously, make the brush handle give the clearance with the smoke and dust of attaching on the filter screen cylinder get off.

Description

A flue gas waste heat utilization heat exchanger

technical field

The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger for utilizing flue gas waste heat.

Background technique

A heat exchanger is a device used to transfer heat from a hot fluid to a cold fluid to meet the specified process requirements. It is an industrial application of convective heat transfer and heat conduction.

The utility model with the Chinese patent publication No. CN217541561U discloses a heat exchanger for high-efficiency waste heat recovery and utilization of flue gas. , the top and bottom outer diameter positions of the front ends of the six tubes are slidably connected with branch pipes, the outer diameter rear ends of the branch pipes are all penetrated and fixedly connected with the first flange, and the other ends of the six branch pipes are positioned horizontally at the bottom They all run through and are fixedly connected with water inlet pipes. In the utility model, the discarded hot gas generated in the production process of the enterprise enters the cylinder body from the air inlet, and through the design of the baffle plate, the circulation time of the flue gas in the cylinder body is prolonged, and the cold water enters the column pipes from the water inlet pipe through the branch pipe, bringing The tubes surrounding the wing wall can accelerate the absorption of gas temperature to achieve the purpose of heating cold water, so as to use hot water to meet heating requirements, promote energy saving and consumption reduction of enterprises, and improve waste heat recovery rate.

However, the flue gas entering the heat exchanger is not treated and directly contacts the tubes. After a long time, a lot of dust will adhere to the tubes, which will affect the heating effect of the liquid in the tubes.

Utility model content

Aiming at the deficiencies of the existing technology, the utility model provides a flue gas waste heat utilization heat exchanger, which solves the problem that a lot of smoke and dust will adhere to the tubes after the traditional heat exchanger is used for a long time.

In order to achieve the above purpose, the utility model is realized through the following technical solutions: a flue gas waste heat utilization heat exchanger, including an outer cylinder, the lower part of the outer cylinder is densely covered with smoke outlets, and the inside of the outer cylinder is provided with a filter Type heat exchange parts.

As a further solution of the present invention: the filter heat exchange element includes a cover plate covering the upper part of the outer cylinder, the bottom of the cover plate is fixed at the inner position of the outer cylinder, and a limit cylinder is fixed, and a filter is arranged on the lower side of the limit cylinder. The bottom of the screen cylinder and the cover plate are located at the peripheral position of the filter cylinder, and a smoke outlet tube is rotated. Both sides of the chimney tube are vertically densely covered with smoke outlet holes, and the middle position of the upper part of the cover plate is rotated and installed with a smoke inlet pipe.

As a further solution of the utility model: the upper side of the outer cylinder is provided with a water inlet, and the lower side of the outer cylinder is provided with a drain outlet, and the inner wall of the outer cylinder is provided with a spiral tube, and the two ends of the spiral tube are connected to the inlet respectively. One end of the water port and the drain port is connected.

As a further solution of the utility model: a rotating motor is installed on the upper part of one side of the cover plate, the output shaft of the rotating motor is connected to a driven wheel at a position between the filter cylinder and the smoke outlet, and the lower end of the driven wheel is connected to a transmission Gear, the upper inner wall of the chimney is provided with a gear ring, and the gear ring meshes with the transmission gear.

As a further solution of the utility model: the lower end of the smoke inlet pipe is provided with a driving wheel outside, and the driving wheel and the driven wheel are connected by a belt transmission, and the belt slides through the inner wall of the limiting cylinder.

As a further solution of the utility model: an L-shaped rod is provided on one side of the lower end of the smoke inlet pipe, and a brush handle is provided on one side of the L-shaped rod, and the brush handle is in contact with the inner wall of the filter cylinder.

As a further solution of the utility model: a through groove is provided at the lower middle position of the filter screen cylinder and the chimney outlet, the positions of the two through grooves correspond to each other, and a T-shaped shaft block passes through the inside of the two through grooves Sealing, the T-shaped shaft block can rotate in the through groove, and the T-shaped shaft block and the bottom of the smoke outlet are fixedly connected by bolts.

The utility model provides a flue gas waste heat utilization heat exchanger, which has the following advantages compared with the prior art

Beneficial effect:

The flue gas waste heat utilizes a heat exchanger, which can filter the flue gas during heat exchange, so that the clean flue gas can be heated to the spiral tube, and the spiral tube will not adhere to the smoke particles after a long time, and In the process of heat exchange, under the rotation of the rotating motor, the chimney can be rotated, so that the flue gas can fully contact the spiral tube, and at the same time, it can also drive the L-shaped rod to move, so that the brush handle can remove the dust attached to the filter cylinder. The smoke and dust are cleaned up to improve the filtering effect of the filter cartridge.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the filter type heat exchange element of the present invention;

Fig. 3 is a structural schematic diagram of the outer cylinder of the utility model.

In the figure: 1. Outer cylinder; 11. Water inlet; 12. Drainage port; 13. Spiral tube; 2. Smoke exhaust port; 3. Filter heat exchange element; 31. Cover plate; Filter cylinder; 34, chimney outlet; 35, smoke outlet; 36, smoke inlet pipe; 37, rotating motor; 38, driven wheel; 39, transmission gear; 310, gear ring; 311, driving wheel; 312, belt; 313, L-shaped bar; 314, brush handle; 315, T-shaped shaft block.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1-3, the utility model provides two technical solutions:

Embodiment one

Please refer to Fig. 1 and Fig. 3. In the embodiment of the present utility model, a flue gas waste heat utilization heat exchanger includes an outer cylinder 1, and smoke outlets 2 are densely distributed around the lower part of the outer cylinder 1, and the interior of the outer cylinder 1 is set There is a filter type heat exchange element 3, a water inlet 11 is provided on the upper side of the outer cylinder 1, and a water discharge port 12 is provided on the lower side of the outer cylinder 1, and a spiral tube 13 is provided on the inner wall of the outer cylinder 1, and the spiral tube 13 The two ends are respectively connected to one end of the water inlet 11 and the water outlet 12, and water is added to the water inlet 11, and the water enters the spiral tube 13, and the spiral tube 13 slows down the speed of the water flow, thereby prolonging the heating time of the flue gas to the water, Thereby improving the effect of heat exchange.

Please refer to Fig. 2, in the embodiment of the utility model, the filter type heat exchange element 3 includes a cover plate 31 covering the upper part of the outer cylinder 1, and the bottom of the cover plate 31 is located at the inner position of the outer cylinder 1, and a limiting cylinder 32 is fixedly arranged to limit The lower side of the position tube 32 is provided with a filter screen tube 33, and the bottom of the cover plate 31 is positioned at the peripheral position of the filter screen tube 33 to rotate and is provided with a smoke outlet tube 34, and both sides of the smoke tube 34 are vertically densely covered with smoke outlet holes 35. The middle position of the upper part of the plate 31 is rotated and installed with a smoke inlet pipe 36. During heat exchange, smoke is added to the smoke inlet pipe 36, and the smoke enters the filter cylinder 33, and the filter cylinder 33 filters the smoke. , enter into the chimney tube 34 afterwards, then discharge from each smoke outlet hole 35 on the chimney tube 34, and enter the inside of the outer tube 1, the spiral tube 13 on the inner wall of the outer tube 1 can be heated, and then the inside of the spiral tube 13 The water is heated for heat exchange, and the flue gas after heat exchange is discharged from the exhaust port 2 on the outer cylinder 1.

Embodiment two, differs from embodiment one in that:

Please refer to Fig. 2, in the embodiment of the utility model, a rotating motor 37 is installed on one side of the cover plate 31, and the output shaft of the rotating motor 37 is located at the position between the filter cylinder 33 and the smoke outlet 34 and is connected with a driven wheel 38 , the lower end of the driven wheel 38 is connected with a transmission gear 39, the upper inner wall of the chimney 34 is provided with a gear ring 310, the gear ring 310 is meshed with the transmission gear 39, and the lower end of the smoke inlet pipe 36 is externally provided with a driving wheel 311, and the driving wheel 311 It is connected to the driven wheel 38 through a belt 312, and the belt 312 slides through the inner wall of the limit cylinder 32. An L-shaped rod 313 is provided on the lower end side of the smoke inlet pipe 36, and a brush handle is provided on one side of the L-shaped rod 313. 314, the brush handle 314 is in contact with the inner wall of the filter cylinder 33. During heat exchange, the rotating motor 37 drives the driven wheel 38 to rotate, the driven wheel 38 drives the transmission gear 39 to rotate, and the transmission gear 39 drives the gear ring 310 meshed with it to rotate. The ring 310 drives the chimney 34 to rotate, so that the flue gas is evenly dispersed to the spiral pipe 13, and the effect of heat exchange is improved. When the driven wheel 38 rotates, the belt 312 will drive the driving wheel 311 to rotate, and the driving wheel 311 will drive the smoke pipe. 36 rotates, and the smoke inlet pipe 36 drives the L-shaped bar 313 to rotate, and the brush handle 314 on the L-shaped bar 313 will wipe the inwall of the filter screen cylinder 33, and the smoke dust attached to the filter screen cylinder 33 inwall will be wiped off.

Please refer to Fig. 2, in the embodiment of the utility model, there are through grooves at the lower middle positions of the filter screen cylinder 33 and the chimney outlet 34, the positions of the two through grooves are corresponding, and the inside of the two through grooves pass through The T-shaped shaft block 315 is sealed, the T-shaped shaft block 315 can rotate in the through groove, and the bottom of the T-shaped shaft block 315 and the smoke outlet 35 are fixedly connected by bolts, and the T-shaped shaft block 315 is opened by the bolts. The through groove is opened to facilitate the cleaning of the soot particles inside the filter cartridge 33 .

Working principle: Add water to the water inlet 11, the water enters the spiral tube 13, and the spiral tube 13 slows down the speed of the water flow, thereby prolonging the heating time of the flue gas to the water, thereby improving the effect of heat exchange;

When exchanging heat, add flue gas in the smoke inlet pipe 36, the flue gas enters in the filter screen cylinder 33, and the filter screen cylinder 33 filters the flue gas, then enters in the chimney discharge pipe 34, and then from the smoke discharge pipe 34 Each smoke outlet 35 is discharged into the interior of the outer cylinder 1, and the spiral tube 13 on the inner wall of the outer cylinder 1 can be heated, and then the water inside the spiral tube 13 is heated to perform heat exchange work. The flue gas after heat exchange Exhausted from the smoke outlet 2 on the outer cylinder 1;

In the heat exchange, the rotating motor 37 drives the driven wheel 38 to rotate, the driven wheel 38 drives the transmission gear 39 to rotate, the transmission gear 39 drives the gear ring 310 meshed with it to rotate, and the gear ring 310 drives the chimney 34 to rotate, thereby making the flue gas uniform Scatter to the spiral tube 13 to improve the effect of heat exchange, and when the driven wheel 38 rotates, the belt 312 will drive the driving wheel 311 to rotate, the driving wheel 311 will drive the smoke inlet pipe 36 to rotate, and the smoke inlet pipe 36 will drive the L-shaped rod 313 to rotate, The brush handle 314 on the L-shaped rod 313 will wipe the inner wall of the filter screen tube 33, and the dust attached to the filter screen tube 33 inner wall will be wiped off;

When it is necessary to process the smoke and dust inside the filter cartridge 33, the T-shaped shaft block 315 can be opened to discharge the smoke and dust.

At the same time, the content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Claims (6)

1. A flue gas waste heat utilization heat exchanger, comprising an outer cylinder (1), characterized in that: smoke outlets (2) are densely distributed around the bottom of the outer cylinder (1), and the inside of the outer cylinder (1) A filter heat exchange element (3) is provided; The filter heat exchange element (3) includes a cover plate (31) covering the upper part of the outer cylinder (1), and the bottom of the cover plate (31) is located at the inner position of the outer cylinder (1) and is fixedly provided with a limiting cylinder (32) , the lower side of the limit tube (32) is provided with a filter tube (33), and the bottom of the cover plate (31) is positioned at the peripheral position of the filter tube (33) to rotate and is provided with a chimney (34), and the chimney (34) ) are vertically densely covered with smoke outlets (35), and the upper middle position of the cover plate (31) runs through and rotates and is equipped with a smoke inlet pipe (36). 2. A flue gas waste heat utilization heat exchanger according to claim 1, characterized in that: the upper side of the outer cylinder (1) is provided with a water inlet (11), and the lower side of the outer cylinder (1) One side is provided with a drain port (12), the inner wall of the outer cylinder (1) is provided with a spiral tube (13), and the two ends of the spiral tube (13) are respectively connected with one end of the water inlet (11) and the drain port (12) . 3. A flue gas waste heat utilization heat exchanger according to claim 1, characterized in that: a rotating motor (37) is installed on one side of the cover plate (31), and the output shaft of the rotating motor (37) A driven wheel (38) is connected at a position between the filter screen cylinder (33) and the chimney (34), and the lower end of the driven wheel (38) is connected with a transmission gear (39). Above the chimney (34) The inner wall is provided with a gear ring (310), and the gear ring (310) is meshed with the transmission gear (39). 4. A flue gas waste heat utilization heat exchanger according to claim 3, characterized in that: the lower end of the smoke inlet pipe (36) is provided with a driving wheel (311), and the driving wheel (311) and the driven wheel (38) are connected by a belt (312) transmission, and the belt (312) slides through the inner wall of the limit cylinder (32). 5. A flue gas waste heat utilization heat exchanger according to claim 4, characterized in that: an L-shaped rod (313) is provided on the side of the lower end of the smoke inlet pipe (36), and the L-shaped rod (313) One side of the brush handle (314) is provided with, and the brush handle (314) is in contact with the inner wall of the filter screen cylinder (33). 6. A flue gas waste heat utilization heat exchanger according to claim 1, characterized in that: the filter cylinder (33) and the middle position of the lower part of the smoke outlet cylinder (34) are provided with through grooves, two The positions of the through grooves are corresponding, and the insides of the two through grooves are sealed by a T-shaped shaft block (315), the T-shaped shaft block (315) can rotate in the through groove, and the T-shaped shaft block (315) is connected The bottom of the smoke hole (35) is fixedly connected by bolts.

Images