CN221763560U - A flue gas waste heat deep extraction device that is easy to clean - Google Patents

Abstract

The utility model relates to a flue gas waste heat deep extraction device that is easy to clean, comprising a box body, both sides of the bottom of the box body are detachably connected to a filter box, the inner wall of the filter box is provided with a mounting groove, the interior of the mounting groove is detachably connected to a filter rack, and the outer sides of the filter rack extend to the inner wall of the filter box and are threadedly connected to a second bolt. The beneficial effect of the utility model is that it solves the problem that the waste heat extraction device in the prior art can make the injected flue gas disperse into a uniform layer of small bubbles through the cavity, so that the cooling water will not contact the smoke during the water change process, thereby avoiding the occurrence of scale and solid deposits in the circulation system, but after the flue gas is discharged after the waste heat extraction, it will carry more dust impurities and harmful substances. If the impurities and harmful substances are not cleaned during the waste heat extraction process, it is easy to cause the nearby working environment to be polluted and the air quality to decline.

Description

A flue gas waste heat deep extraction device that is easy to clean

Technical Field

The utility model relates to the technical field of flue gas waste heat extraction, in particular to a flue gas waste heat deep extraction device which is easy to clean.

Background Art

Flue gas waste heat recovery devices are usually used in boilers in the metallurgical industry. Boilers will generate a large amount of flue gas during production, and these flue gases will carry part of the heat in the boiler when discharged, causing heat loss and waste of resources. The use of flue gas waste heat recovery devices can collect flue gas and use the high temperature in the flue gas to generate new heat energy, so as to achieve environmentally friendly and efficient energy utilization.

After searching, a Chinese patent discloses a device for deep extraction of flue gas waste heat from a thermal power plant (authorization announcement number CN217844844 U). The patented technology includes an inner box, a flue gas inlet and a flue gas outlet. The bottom end of the inner box is connected to a pipe connected to the flue gas inlet. The bottom end of the inner box is provided with multiple layers of partitions with apertures decreasing from bottom to top. The inner box is filled with a heat transfer fluid, and multiple groups of heat exchange cavities are provided in the middle. The heat exchange cavity is a multi-layer folded structure in the inner box, and hot water flows inside. The head and tail ends of the heat exchange cavity are extended out of the inner box through a pipe. The utility model sets a tortuous heat exchange cavity in the box structure, so that the injected flue gas is dispersed into a uniform layer of small bubbles, so that the hot water can efficiently complete the heat exchange with the smoke without contacting the smoke, and prevents a large amount of scale and solid deposits from appearing in the hot water circulation system.

In the actual application process of this patented technology, although the injected flue gas can be dispersed into a uniform layer of small bubbles through the cavity, so that the cooling water will not come into contact with the smoke during the water change process, thereby avoiding the appearance of scale and solid deposits in the circulation system, the flue gas will carry more dust, impurities and harmful substances after being discharged through waste heat extraction. If the impurities and harmful substances are not cleaned during the waste heat extraction process, it is easy to cause pollution to the nearby working environment and deteriorate the air quality.

Utility Model Content

In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a flue gas waste heat deep extraction device which is easy to clean.

The technical solution of the utility model is as follows: a device for deep extraction of flue gas waste heat that is easy to clean, comprising a box body, wherein both sides of the bottom of the box body are detachably connected to a filter box, an inner wall of the filter box is provided with a mounting groove, the interior of the mounting groove is detachably connected to a filter mesh frame, the outer sides of the filter mesh frame extend to the inner wall of the filter box and are threadedly connected to a second bolt, wherein both sides of the outer side of one of the filter boxes are rotatably connected to a mounting ring via a hinge, an outer side of the mounting ring is fixedly connected to a mounting block, and the inner sides of the two mounting blocks are threadedly connected to a third bolt.

As a preferred embodiment, a sealing gasket is fixedly connected to the inner side of the mounting ring, the sealing gasket is made of rubber material, and a filter is fixedly connected to the inside of the filter frame.

As a preferred embodiment, an air inlet pipe is fixedly connected to one side of the interior of the box, an air outlet pipe is fixedly connected to the side of the interior of the box away from the air inlet pipe, and one end of the air inlet pipe and the air outlet pipe extend to the bottom of the box and are fixedly connected to a mounting plate.

As a preferred embodiment, both sides of the outside of the two mounting plates extend to the inner wall of the filter box and are threadedly connected with a first bolt, an air inlet groove is provided on one side of the outside of the filter box, and one end of the air outlet pipe extends to the outside of the box and is fixedly connected with an air outlet.

As a preferred embodiment, a water tank is fixedly connected to the bottom of the box body and below the filter box, a refrigerator is installed inside the water tank, and water outlet pipes are fixedly connected on both sides of the bottom of the box body extending to the inside of the water tank, and a solenoid valve is installed outside the water outlet pipe.

As a preferred embodiment, a water inlet pipe is fixedly connected to an outer side of the water tank and below the water outlet pipe, an end of the water inlet pipe away from the water tank extends to the interior of the tank, and a water pump is installed on the outside of the water inlet pipe.

As a preferred embodiment, support legs are symmetrically fixedly connected to both sides of the bottom of the box, the solenoid valve and the water pump are electrically connected to an external controller, and one end of the air inlet pipe extends to the top of the box and is connected to an external smoke pipe.

Compared with the prior art, the advantages and positive effects of the utility model are:

In the utility model, the external smoke pipe is first connected with the air inlet pipe, and then the smoke enters the interior of the filter box through the air inlet pipe. At this time, the filter rack inside the filter box can cooperate with the filter to filter impurities and harmful substances in the smoke. The filtered smoke continues to enter the exhaust pipe on the other side of the filter box, and finally the cleaned smoke is discharged from the exhaust port to avoid polluting the surrounding environment and reducing the air quality. When the filter has been used for a long time and accumulates a lot of impurities, first unscrew the first bolt on the mounting plate, remove the filter box through the mounting plate, and then unscrew the third bolt to open the two mounting rings, thereby separating the two filter boxes, and finally unscrew the second bolt on the filter rack, so that the filter rack can be pulled out through the mounting groove, thereby facilitating the cleaning of the filter rack and facilitating recycling, effectively improving the service life of the device, and greatly improving the operation quality and use efficiency compared with traditional devices.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective view of a filter box in the present invention;

FIG2 is a schematic diagram of the three-dimensional structure of the utility model;

FIG3 is a schematic cross-sectional view of the utility model;

FIG. 4 is an enlarged view of point A in FIG. 3 of the present invention.

Legend: 1. Box body; 2. Air inlet pipe; 3. Air outlet pipe; 4. Filter box; 5. Mounting plate; 6. First bolt; 7. Mounting slot; 8. Filter rack; 9. Second bolt; 10. Mounting ring; 11. Mounting block; 12. Third bolt; 13. Air outlet; 14. Water tank; 15. Water outlet pipe; 16. Solenoid valve; 17. Refrigerator; 18. Water inlet pipe; 19. Water pump.

DETAILED DESCRIPTION

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

Example 1

As shown in Figures 1 to 4, the utility model provides a technical solution: a flue gas waste heat deep extraction device that is easy to clean, including a box body 1, and filter boxes 4 are detachably connected to the bottom sides of the box body 1. The inner wall of the filter box 4 is provided with a mounting groove 7, and the interior of the mounting groove 7 is detachably connected to a filter rack 8. The outer sides of the filter rack 8 extend to the inner wall of the filter box 4 and are threadedly connected to second bolts 9. The outer sides of one of the filter boxes 4 are rotatably connected to mounting rings 10 through hinges, and the outer side of the mounting ring 10 is fixedly connected to a mounting block 11, and the inner sides of the two mounting blocks 11 are threadedly connected to third bolts 12.

In this embodiment, the external flue gas pipe is first connected to the air inlet pipe 2, and then the flue gas enters the interior of the filter box 4 through the air inlet pipe 2. At this time, the filter rack 8 inside the filter box 4 can cooperate with the filter to filter impurities and harmful substances in the flue gas, and the filtered flue gas continues to enter the outlet pipe 3 on the other side of the filter box 4, and finally the cleaned flue gas is discharged from the air outlet 13 to avoid polluting the surrounding environment and reducing the air quality. When the filter net is used for a long time and accumulates a lot of impurities, first unscrew the first bolt 6 on the mounting plate 5, remove the filter box 4 through the mounting plate 5, and then unscrew the third bolt 12 to open the two mounting rings 10, thereby separating the two filter boxes 4, and finally unscrew the second bolt 9 on the filter rack 8, so that the filter rack 8 can be pulled out through the mounting groove 7, so as to facilitate the cleaning of the filter rack 8 and facilitate recycling, thereby effectively improving the service life of the device.

Example 2

As shown in Figures 1 to 4, a sealing gasket is fixedly connected to the inner side of the mounting ring 10, and the sealing gasket is made of rubber material. A filter is fixedly connected to the inside of the filter mesh frame 8. An air inlet pipe 2 is fixedly connected to the inner side of the box body 1, and an air outlet pipe 3 is fixedly connected to the inner side of the box body 1 away from the air inlet pipe 2. One end of the air inlet pipe 2 and the air outlet pipe 3 extend to the bottom of the box body 1 and are fixedly connected to a mounting plate 5. Both sides of the outside of the two mounting plates 5 extend to the inner wall of the filter box 4 and are threadedly connected to the first bolt 6. An air inlet groove is provided on the outer side of the filter box 4, and one end of the air outlet pipe 3 extends to the outside of the box body 1 and is fixedly connected to an air outlet 13. The bottom of the box body 1 and located at the filter A water tank 14 is fixedly connected to the bottom of the box 4, and a refrigerator 17 is installed inside the water tank 14. Water outlet pipes 15 are fixedly connected to both sides of the bottom of the box body 1 and extend to the inside of the water tank 14. A solenoid valve 16 is installed outside the water outlet pipe 15. A water inlet pipe 18 is fixedly connected to one side of the outside of the water tank 14 and below the water outlet pipe 15. One end of the water inlet pipe 18 away from the water tank 14 extends to the inside of the box body 1. A water pump 19 is installed outside the water inlet pipe 18. Support legs are symmetrically fixedly connected to both sides of the bottom of the box body 1. The solenoid valve 16 and the water pump 19 are both electrically connected to the external controller. One end of the air inlet pipe 2 extends to the top of the box body 1 and is connected to the external smoke pipe.

In this embodiment, when the flue gas is transmitted in the air inlet pipe 2 and the air outlet pipe 3, the water pump 19 draws the cooling water in the water tank 14 into the interior of the box body 1 through the water inlet pipe 18. After the cooling water enters the interior of the box body 1, it can absorb the heat in the flue gas inside the air inlet pipe 2 and the air outlet pipe 3, thereby realizing the extraction of waste heat from the flue gas. At the same time, the solenoid valve 16 is opened by the external controller, and the cooling water that has absorbed the excess heat in the box body 1 can re-enter the interior of the water tank 14 through the water outlet pipe 15, and the refrigerator 17 inside the water tank 14 can continuously cool the cooling water to realize a cooling cycle, thereby effectively saving water resources and improving the efficiency of extracting waste heat from the flue gas. When the waste heat needs to be reused, the refrigerator can be turned off to store the heat in the water source of the water tank 14, thereby facilitating energy utilization.

Working principle:

As shown in Figures 1 to 4, first connect the external smoke pipe to the air inlet pipe 2, and then the smoke enters the interior of the filter box 4 through the air inlet pipe 2. At this time, the filter rack 8 inside the filter box 4 can cooperate with the filter to filter impurities and harmful substances in the smoke. The filtered smoke continues to enter the outlet pipe 3 on the other side of the filter box 4, and finally the cleaned smoke is discharged from the outlet 13 to avoid polluting the surrounding environment and reducing the air quality. When the filter is used for a long time and accumulates a lot of impurities, first unscrew the first bolt 6 on the mounting plate 5, remove the filter box 4 through the mounting plate 5, and then unscrew the third bolt 12 to open the two mounting rings 10, thereby separating the two filter boxes 4, and finally unscrew the second bolt 9 on the filter rack 8, so that the filter rack 8 can be pulled out through the mounting groove 7, so that it is convenient to clean the filter rack 8 and it is convenient for recycling, which effectively improves The service life of the device is prolonged. When the flue gas is transmitted in the air inlet pipe 2 and the air outlet pipe 3, the water pump 19 draws the cooling water in the water tank 14 into the interior of the box body 1 through the water inlet pipe 18. After the cooling water enters the interior of the box body 1, the heat in the flue gas inside the air inlet pipe 2 and the air outlet pipe 3 can be absorbed to realize the extraction of the waste heat of the flue gas. At the same time, the solenoid valve 16 is opened by the external controller, and the cooling water that absorbs the overheated heat in the box body 1 can re-enter the interior of the water tank 14 through the water outlet pipe 15, and the refrigerator 17 inside the water tank 14 can continuously cool the cooling water to realize the cooling cycle, effectively saving water resources and improving the extraction efficiency of the waste heat of the flue gas. When the waste heat needs to be reused, the refrigerator can be turned off to store the heat in the water source of the water tank 14, which is convenient for energy utilization and greatly improves the operation quality and utilization efficiency compared with traditional devices.

Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the utility model.

Claims (7)

1. The utility model provides a flue gas waste heat degree of depth extraction element convenient to clearance, includes box (1), its characterized in that: the filter box is characterized in that the filter box (4) is detachably connected to the two sides of the bottom of the box body (1), the mounting groove (7) is formed in the inner wall of the filter box (4), the filter screen rack (8) is detachably connected to the inside of the mounting groove (7), the second bolts (9) are connected to the two sides of the outside of the filter screen rack (8) through threads, the mounting ring (10) is connected to the two sides of the outside of the filter box (4) through hinge rotation, the mounting block (11) is fixedly connected to one side of the outside of the mounting ring (10), and the third bolts (12) are connected to the internal threads of the mounting block (11).

2. The flue gas waste heat deep extraction device convenient to clean according to claim 1, wherein: the inner side of the mounting ring (10) is fixedly connected with a sealing gasket, the sealing gasket is made of rubber materials, and a filter screen is fixedly connected inside the filter screen frame (8).

3. The flue gas waste heat deep extraction device convenient to clean according to claim 1, wherein: the novel air inlet box is characterized in that an air inlet pipe (2) is fixedly connected to one side of the inside of the box body (1), an air outlet pipe (3) is fixedly connected to one side, away from the air inlet pipe (2), of the inside of the box body (1), and one end of the air inlet pipe (2) and one end of the air outlet pipe (3) extend to the bottom of the box body (1) to be fixedly connected with a mounting plate (5).

4. A flue gas waste heat deep extraction device convenient to clearance according to claim 3, characterized in that: the two outside both sides of mounting panel (5) extend to the inside equal threaded connection of inner wall of rose box (4) have first bolt (6), the inlet channel has been seted up to outside one side of rose box (4), the one end of outlet duct (3) extends to outside fixedly connected with gas outlet (13) of box (1).

5. A flue gas waste heat deep extraction device convenient to clearance according to claim 3, characterized in that: the bottom of box (1) and be located below fixedly connected with water tank (14) of rose box (4), internally mounted of water tank (14) has refrigerator (17), the bottom both sides of box (1) extend to the inside of water tank (14) and all fixedly connected with outlet pipe (15), the externally mounted of outlet pipe (15) has solenoid valve (16).

6. The flue gas waste heat deep extraction device convenient to clean according to claim 5, wherein: the water tank is characterized in that a water inlet pipe (18) is fixedly connected to one side of the outer portion of the water tank (14) and located below the water outlet pipe (15), one end, far away from the water tank (14), of the water inlet pipe (18) extends to the inner portion of the tank body (1), and a water pump (19) is arranged outside the water inlet pipe (18).

7. The flue gas waste heat deep extraction device convenient to clean according to claim 6, wherein: the two sides of the bottom of the box body (1) are symmetrically and fixedly connected with supporting legs, the electromagnetic valve (16) and the water pump (19) are electrically connected with an external controller, and one end of the air inlet pipe (2) extends to the top of the box body (1) to be connected with an external flue gas pipe.