Improved flue gas and coal gas cooler

Abstract

The utility model discloses an improved flue gas and coal gas cooler, and relates to the technical field of coolers. The device comprises a tank body and a tank cover, the tank cover is detachably installed at one end of the tank body, an air inlet is formed in the end, away from the tank cover, of the tank body, an air outlet is formed in the tank cover, and an outer shell is detachably installed between the tank body and the tank cover. The heat exchange water circularly flows in the heat exchange pipe, and the first disc-shaped fin group, the second disc-shaped fin group, the first rectangular fin group and the second rectangular fin group fully absorb the temperature of high-temperature flue gas or coal gas; high-temperature heat on the first disc-shaped fin group, the second disc-shaped fin group, the first rectangular fin group and the second rectangular fin group is taken away by heat exchange water circularly flowing in the heat exchange tube, so that the first disc-shaped fin group, the second disc-shaped fin group, the first rectangular fin group and the second rectangular fin group are prevented from absorbing heat and being saturated; therefore, the cooling effect and the cooling efficiency of high-temperature flue gas or coal gas are improved.

Description

Technical Field

[0001] This utility model relates to the field of cooler technology, specifically an improved flue gas cooler. Background Technology

[0002] Coolers are a type of heat exchange equipment used to cool fluids. They typically use water or air as coolants to remove heat. They can be mainly divided into shell and tube coolers, plate coolers, and air-cooled coolers. Coolers are heat exchange devices commonly used in industries such as metallurgy, chemical industry, energy, transportation, light industry, and food.

[0003] However, existing flue gas coolers still have some drawbacks when cooling flue gas or coal gas:

[0004] 1. Most of the flue gas coolers in the existing technology are integrally molded, which makes the assembly process time-consuming and labor-intensive, and the heat exchange tubes in the cooling process are inconvenient to remove and replace.

[0005] 2. Existing flue gas coolers use a single cooling method when cooling flue gas or coal gas, which results in insufficient removal of heat from the flue gas or coal gas. They generally employ multiple cooling processes, leading to poor cooling effect and low cooling efficiency. Utility Model Content

[0006] In order to solve the above problems, the purpose of this utility model is to provide an improved flue gas cooler.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an improved flue gas cooler, comprising a tank body and a tank cover, wherein the tank cover is detachably installed at one end of the tank body, an air inlet is provided at the end of the tank body away from the tank cover, an exhaust port is provided on the tank cover, an outer shell is detachably installed between the tank body and the tank cover, a chamber is provided between the inner wall of the outer shell and the outer wall of the tank body, and a heat exchange tube is provided in the chamber, wherein the heat exchange tube is a circulating hollow tube;

[0008] One end of the heat exchange tube is detachably fitted with a first elbow, and one end of the first elbow is fixedly fitted with a water inlet pipe. The other end of the heat exchange tube is detachably fitted with a second elbow, and one end of the second elbow is fixedly fitted with a water outlet pipe. Both the end of the tank body away from the tank cover and the end of the tank cover are provided with sealing rings. One side of the sealing ring is in movable contact with one end of the outer shell. The opposite sides of the two sealing rings are provided with annular protrusions, and the annular protrusions are pressed against one end of the chamber.

[0009] Preferably, the can lid is provided with a plurality of first lifting lugs arranged in a ring array, and the outer wall of the outer shell is provided with a plurality of second lifting lugs arranged in a ring array.

[0010] Preferably, a cover plate is detachably installed on the outer casing, and the water inlet pipe and water outlet pipe pass through the cover plate.

[0011] Preferably, the outer walls of both sealing rings are provided with a plurality of fixed ears arranged in an annular array, and a first locking bolt and a second locking bolt are threadedly rotatably installed on each of the fixed ears. The first locking bolt is threadedly rotatably connected to the sealing ring, and the second locking bolt is threadedly rotatably connected to the outer shell.

[0012] Preferably, a first disc-shaped fin group and a second disc-shaped fin group are fixedly installed at both ends of the inner wall of the tank. A first flow groove is opened in the middle of the first disc-shaped fin group, and a second flow groove is opened in the middle of the second disc-shaped fin group.

[0013] The tank body is fixedly installed with a number of first rectangular fin groups and a number of second rectangular fin groups, which are located between the first disc-shaped fin group and the second disc-shaped fin group.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, by setting a detachable outer shell and a detachable heat exchange tube between the tank body and the tank cover, the tank cover and the outer shell can be lifted in sequence by the first lifting lug and the second lifting lug, so that the heat exchange tube is exposed to the outside, so that the operator can replace the heat exchange tube, and also facilitates assembly.

[0016] 2. By circulating the heat exchange water within the heat exchange tubes, the first disc-shaped fin group, the second disc-shaped fin group, the first rectangular fin group, and the second rectangular fin group fully absorb the temperature of the high-temperature flue gas or coal gas. Then, the heat exchange water circulating within the heat exchange tubes carries away the high-temperature heat from the first disc-shaped fin group, the second disc-shaped fin group, the first rectangular fin group, and the second rectangular fin group, thus preventing the first disc-shaped fin group, the second disc-shaped fin group, the first rectangular fin group, and the second rectangular fin group from saturating with heat, thereby improving the cooling effect and efficiency of the high-temperature flue gas or coal gas. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an improved flue gas cooler according to the present invention.

[0019] Figure 2 This is a schematic diagram showing the disassembly state of an improved flue gas cooler according to this utility model.

[0020] Figure 3 This is a schematic diagram of the connection structure between the outer shell and the tank body of this utility model.

[0021] Figure 4 This is a schematic diagram of the connection structure between the water inlet pipe, the water outlet pipe, and the heat exchange pipe of this utility model.

[0022] Figure 5 This is a cross-sectional structural diagram of the outer shell and the can body of this utility model.

[0023] Figure 6 This is a schematic diagram of the fin assembly of this utility model.

[0024] Figure 7 This is a schematic diagram of the airflow channel in an embodiment of the present invention.

[0025] In the diagram: 10. Tank body; 20. Tank lid; 2. Outer shell; 11. Air inlet; 12. Exhaust outlet; 13. First lifting lug; 21. Chamber; 22. Heat exchange tube; 23. First elbow; 24. Water inlet pipe; 25. Second elbow; 26. Water outlet pipe; 27. Cover plate; 28. Second lifting lug; 29. ​​Sealing ring; 291. Annular protrusion; 3. Fixing lug; 31. First locking bolt; 32. Second locking bolt; 41. First disc-shaped fin assembly; 411. First flow channel; 42. Second disc-shaped fin assembly; 421. Second flow channel; 43. First rectangular fin assembly; 44. Second rectangular fin assembly. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example: Figure 1-7As shown, this utility model provides an improved flue gas / coal gas cooler, including a tank body 10 and a tank cover 20. The tank cover 20 is detachably installed at one end of the tank body 10. An air inlet 11 is provided at the end of the tank body 10 away from the tank cover 20, and an exhaust port 12 is provided on the tank cover 20. By providing the air inlet 11 and the exhaust port 12, the high-temperature flue gas or coal gas to be cooled can enter the tank body 10 through the air inlet 11, and the cooled flue gas or coal gas in the tank body 10 can be cooled through the exhaust port 12. The exhaust is discharged through the exhaust port 12. An outer shell 2 is detachably installed between the tank body 10 and the tank cover 20. A chamber 21 is provided between the inner wall of the outer shell 2 and the outer wall of the tank body 10. A heat exchange tube 22 is provided in the chamber 21. The heat exchange tube 22 is a circulating hollow tube. By setting the outer shell 2 outside the tank body 10 and forming the chamber 21, the heat exchange tube 22 can be placed in the chamber 21. When the tank cover 20 is removed, the heat exchange tube 22 can be lifted from the chamber 21.

[0028] A first elbow 23 is detachably installed at one end of the heat exchange tube 22, and an inlet pipe 24 is fixedly installed at one end of the first elbow 23. A second elbow 25 is detachably installed at the other end of the heat exchange tube 22, and an outlet pipe 26 is fixedly installed at one end of the second elbow 25. By setting up the first elbow 23, the inlet pipe 24, the second elbow 25, and the outlet pipe 26, with the inlet pipe 24 threadedly connected to the first elbow 23 and the outlet pipe 26 threadedly rotated onto the second elbow 25, the inlet pipe 24 and the outlet pipe 26 can be easily removed to facilitate lifting the heat exchange tube 22 from the chamber 21. When the external water pump connects to the inlet pipe... After the end of pipe 24 is connected, heat exchange water can enter the heat exchange tube 22, and the heat exchange water in the heat exchange tube 22 can be discharged through the outlet pipe 26. Therefore, the high temperature flue gas or coal gas in the tank 10 is cooled. A sealing ring 29 is provided at the end of the tank 10 away from the tank cover 20 and at the end of the tank cover 20. One side of the sealing ring 29 is in contact with one end of the outer shell 2. An annular protrusion 291 is provided on the opposite side of the two sealing rings 29. The annular protrusion 291 is pressed against one end of the chamber 21. By setting the sealing ring 29 and the annular protrusion 291, both ends of the outer shell 2 can be sealed.

[0029] The can lid 20 is provided with a number of first lifting lugs 13 arranged in a ring array, and the outer wall of the outer shell 2 is provided with a number of second lifting lugs 28 arranged in a ring array. By providing the first lifting lugs 13 and the second lifting lugs 28, when the sealing ring 29 is contacted, the can lid 20 can be lifted by the first lifting lugs 13, so that the upper end of the can body 10 is in an open state. The outer shell 2 can be lifted by the second lifting lugs 28, so that the heat exchange tube 22 is exposed to the outside, allowing the operator to move the heat exchange tube 22 away from the can body 10.

[0030] A cover plate 27 is detachably installed on the outer casing 2. The water inlet pipe 24 and the water outlet pipe 26 pass through the cover plate 27. The cover plate 27 is fixed to the outer casing 2 by screws. After removing the cover plate 27, the water inlet pipe 24 and the water outlet pipe 26 can be removed.

[0031] The outer walls of both sealing rings 29 are provided with a plurality of fixed ears 3 arranged in a ring array. Each of the fixed ears 3 is threadedly mounted with a first locking bolt 31 and a second locking bolt 32. The first locking bolt 31 is threadedly rotatably connected to the sealing ring 29, and the second locking bolt 32 is threadedly rotatably connected to the outer shell 2. By setting the first locking bolt 31 and the second locking bolt 32, the second locking bolt 32 can fix the outer shell 2 located between the two sealing rings 29, and the first locking bolt 31 can fix the sealing ring 29.

[0032] The inner wall of the tank body 10 is fixedly installed with a first disc-shaped fin group 41 and a second disc-shaped fin group 42 at both ends. A first flow groove 411 is opened in the middle of the first disc-shaped fin group 41, and a second flow groove 421 is opened in the middle of the second disc-shaped fin group 42.

[0033] The tank body 10 has several first rectangular fin groups 43 and several second rectangular fin groups 44 fixedly installed inside. The first rectangular fin groups 43 and several second rectangular fin groups 44 are located between the first disc-shaped fin group 41 and the second disc-shaped fin group 42. By setting the first disc-shaped fin group 41, the second disc-shaped fin group 42, the first rectangular fin group 43 and the second rectangular fin group 44, multiple channels are formed in the first disc-shaped fin group 41, the second disc-shaped fin group 42, the first rectangular fin group 43 and the second rectangular fin group 44. The high-temperature flue gas or coal gas entering the tank body 10 flows upward, passes through the first flow channel 411, and flows in the multiple channels. The first disc-shaped fin group 41, the second disc-shaped fin group 42, the first rectangular fin group 43 and the second rectangular fin group 44 fully absorb the temperature of the high-temperature flue gas or coal gas, and then flows upward through the second flow channel 421 and is discharged through the exhaust port 12.

[0034] Working principle: By setting an outer shell 2 outside the tank 10, a chamber 21 is formed between the outer shell 2 and the tank 10. The heat exchange tube 22 can be placed in the chamber 21. The outer shell 2 is fixed by two sealing rings 29, the first locking bolt 31 and the second locking bolt 32. By reversing the operation, the outer shell 2 can be disassembled. The tank cover 20 and the outer shell 2 can be lifted in sequence by the first lifting lug 13 and the second lifting lug 28, so that the heat exchange tube 22 is exposed to the outside, so that the operator can replace the heat exchange tube 22 and also facilitate assembly.

[0035] When cooling of high-temperature flue gas or coal gas is required, the operator first connects an external water pump to one end of the inlet pipe 24. The heat exchange water enters the heat exchange tube 22 through the inlet pipe 24, flows within the heat exchange tube 22, and is then discharged through the outlet pipe 26, forming a cycle. When the high-temperature flue gas or coal gas enters the bottom of the tank 10 through the inlet 11, it flows upward, passes through the first flow channel 411, and flows in multiple channels, including the first disc-shaped fin group 41, the second disc-shaped fin group 42, the first rectangular fin group 43, and the second rectangular fin group 44. The finned fins 44 fully absorb the temperature of the high-temperature flue gas or coal gas, and then flow upward through the second flow channel 421 and are discharged through the exhaust port 12. During this process, the heat exchange water circulating in the heat exchange tube 22 carries away the high-temperature heat on the first disc-shaped finned fins 41, the second disc-shaped finned fins 42, the first rectangular finned fins 43, and the second rectangular finned fins 44, thus preventing the first disc-shaped finned fins 41, the second disc-shaped finned fins 42, the first rectangular finned fins 43, and the second rectangular finned fins 44 from saturating with heat, thereby improving the cooling effect and cooling efficiency of the high-temperature flue gas or coal gas.

[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An improved flue gas cooler, comprising a tank body (10) and a tank cover (20), characterized in that: The can lid (20) is detachably installed at one end of the can body (10). An air inlet (11) is provided at the end of the can body (10) away from the can lid (20). An exhaust port (12) is provided on the can lid (20). An outer shell (2) is detachably installed between the can body (10) and the can lid (20). A chamber (21) is provided between the inner wall of the outer shell (2) and the outer wall of the can body (10). A heat exchange tube (22) is provided in the chamber (21). The heat exchange tube (22) is a circulating hollow tube. One end of the heat exchange tube (22) is detachably equipped with a first elbow (23), and one end of the first elbow (23) is fixedly equipped with a water inlet pipe (24). The other end of the heat exchange tube (22) is detachably equipped with a second elbow (25), and one end of the second elbow (25) is fixedly equipped with a water outlet pipe (26). The end of the tank body (10) away from the tank cover (20) and the end of the tank cover (20) are both provided with sealing rings (29). One side of the sealing ring (29) is in contact with one end of the outer shell (2). The opposite sides of the two sealing rings (29) are provided with annular protrusions (291), and the annular protrusions (291) are pressed against one end of the chamber (21).

2. The improved flue gas cooler as described in claim 1, characterized in that, The can lid (20) is provided with a plurality of first lugs (13) arranged in a ring array, and the outer wall of the outer shell (2) is provided with a plurality of second lugs (28) arranged in a ring array.

3. An improved flue gas cooler as described in claim 1, characterized in that, A cover plate (27) is detachably installed on the outer shell (2), and the water inlet pipe (24) and the water outlet pipe (26) pass through the cover plate (27).

4. An improved flue gas cooler as described in claim 1, characterized in that, The outer walls of the two sealing rings (29) are provided with a number of fixed ears (3) arranged in a ring array. A first locking bolt (31) and a second locking bolt (32) are threadedly mounted on the fixed ears (3). The first locking bolt (31) is threadedly connected to the sealing ring (29), and the second locking bolt (32) is threadedly connected to the outer shell (2).

5. An improved flue gas cooler as described in claim 1, characterized in that, The inner wall of the tank (10) is fixedly installed with a first disc-shaped fin group (41) and a second disc-shaped fin group (42) at both ends. The first disc-shaped fin group (41) has a first flow groove (411) in the middle and the second disc-shaped fin group (42) has a second flow groove (421) in the middle. The tank body (10) is fixedly installed with a number of first rectangular fin groups (43) and a number of second rectangular fin groups (44), and the number of first rectangular fin groups (43) and the number of second rectangular fin groups (44) are located between the first disc-shaped fin group (41) and the second disc-shaped fin group (42).

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