Heat exchange device for ceramic product production

Abstract

The invention relates to the technical field of heat exchange devices, and discloses a heat exchange device for ceramic product production, which comprises a rack, a plurality of heat exchange tubes are arranged in the rack, a drainage device for introducing waste gas is arranged on the rear side of the rack, and a rotary fin assembly capable of rotating around the heat exchange tubes for heat conduction is arranged outside the heat exchange tubes. Through circulating rotation of the fins, the low-temperature area, opposite to the waste gas side, of the fins can be continuously rotated to face the waste gas, the heat absorption and transfer effect of the fins can be improved, the heat exchange effect is improved, air in the area, opposite to the side of the drainage assembly, of the fins is continuously sucked in and sprayed out to the surfaces of the fins, and the heat exchange efficiency is improved. The speed that the temperature of the fins is reduced to the temperature of the area on the side, away from the drainage assembly, of the fins is greatly increased, it is guaranteed that the follow-up fins better absorb heat and transfer heat, meanwhile, the fins can be cleaned, and the situation that the transfer effect of the fins is affected due to excessive dust attachment is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of heat exchange devices, and particularly relates to a heat exchange device for ceramic product production. Background Art

[0002] At present, a large amount of waste gas generated during the operation of ceramic kilns is directly discharged into the environment without treatment, resulting in waste of heat energy.

[0003] Therefore, a heat exchanger is used to recover and utilize the heat of the waste gas. By introducing cold water into the heat exchange tubes in the heat exchanger and introducing the waste gas so that it blows against the heat exchange tubes, heat is absorbed through the fins on the heat exchange tubes and then transferred to the internal cold water to heat it, achieving the reduction and recovery of the waste gas heat. However, when the existing heat exchanger is in use, the position of its fins is fixed, and the temperature of the side facing the waste gas is fixed. The temperature of the side of the fins facing away from the waste gas is lower than that of the side facing the waste gas. Since the lower the temperature of the fins, the better the effect of heat absorption and transfer, but the above-mentioned fixed fin setting makes it impossible to make good use of the low-temperature area of the fins, resulting in a general heat absorption efficiency.

[0004] Therefore, it is very necessary to invent a heat exchange device for ceramic product production to solve the above problems. Summary of the Invention

[0005] In view of the above problems, the present invention provides a heat exchange device for ceramic product production to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A heat exchange device for ceramic product production, including a frame, a plurality of heat exchange tubes are arranged inside the frame, a drainage device for introducing waste gas is arranged at the rear side of the frame, and a rotating fin assembly capable of rotating around the heat exchange tubes for heat conduction is arranged outside the heat exchange tubes;

[0007] The rotating fin assembly includes: a pair of limiting rings, fins, a pair of circular rings, and a driving component for driving the circular rings to rotate;

[0008] The fins are rotatably sleeved outside the heat exchange tubes, a pair of the circular rings are respectively fixedly installed at both ends of the fins and rotatably sleeved outside the heat exchange tubes, a pair of the limiting rings are respectively threadedly sleeved on both sides of the heat exchange tubes, and the driving component is connected to one of the circular rings for driving it to rotate.

[0009] Further, the driving component includes: teeth arranged outside one of the circular rings, a chain belt meshing with the teeth, a sprocket, and a motor;

[0010] The motor is fixed on the top of the frame, the sprocket is fixed on the output shaft of the motor, and the chain belt is sleeved outside the sprocket and the teeth.

[0011] Furthermore, an acceleration component for accelerating the temperature recovery of the fin is provided on the side of the fin away from the drainage device;

[0012] The acceleration component includes: an arc-shaped frame, a nozzle, spray holes provided outside the nozzle, an injection component for injecting air in the area on the side of the heat exchange tube away from the drainage component into the nozzle, and a connecting plate;

[0013] The arc-shaped frame is fixedly connected to the frame through the connecting plate, the nozzle is rotatably installed inside the arc-shaped frame, the arc-shaped frame covers a part of the nozzle, and the uncovered area of the nozzle faces the fin obliquely downward.

[0014] Furthermore, the injection component includes: a cylinder body, a fixing plate, a first conduit, a second conduit, a check valve, a piston plate, a spring, a push rod, and extrusion blocks arranged equidistantly around the outer side of a circular ring;

[0015] The cylinder body is fixed inside the frame through the fixing plate, the first conduit and the second conduit are fixed on the cylinder body and communicate with the cylinder body, the check valve is arranged inside the first conduit and the second conduit, the piston plate is arranged inside the cylinder body, the spring connects the piston plate and the cylinder body, the push rod is fixed on the side of the piston plate close to the circular ring, and one end of the first conduit is communicated with the middle of one end of the nozzle and is rotatably connected.

[0016] Furthermore, the end of the second conduit away from the cylinder body is located in the area on the side of the fin away from the drainage component.

[0017] Furthermore, the extrusion block is specifically set as a plate-shaped member with an arc surface on one side, and the extrusion block can cooperate with the arc surface to extrude the push rod.

[0018] Furthermore, the drainage component includes: a through pipe and a fan;

[0019] The through pipe is fixed on one side of the frame, and the fan is fixed inside the through pipe.

[0020] Furthermore, a plurality of the heat exchange tubes are arranged staggered in the frame, the ends of the heat exchange tubes are fixedly connected to the inner wall of the frame, channels communicating with the ends of the heat exchange tubes are symmetrically arranged in the frame, a water inlet pipe communicating with one side channel is arranged at the lower part of one side of the frame, and a water outlet pipe communicating with the other side channel is arranged at the upper part of the side of the frame away from the water inlet pipe.

[0021] The technical effects and advantages of the present invention:

[0022] 1. Through the cyclic rotation of the fin of the present invention, the low-temperature area on the side of the fin away from the waste gas can be continuously rotated to face the waste gas, so that the heat absorption and transfer effects of the fin can be improved, and the heat exchange effect can be enhanced;

[0023] 2. By continuously pumping air into and ejecting it onto the surface of the fin from the area on the side of the fin away from the drainage component, the present invention greatly improves the speed at which the temperature of the fin is reduced to the temperature of the area on the side of the fin away from the drainage component, ensuring better heat absorption and transfer of the subsequent fin. At the same time, it can clean the fin to avoid excessive dust attachment affecting the transfer effect of the fin. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. shows a schematic structural diagram of a heat exchange device for ceramic product production according to an embodiment of the present invention;

[0025] Figure 2 FIG. shows a schematic structural diagram of the combination of a heat exchange tube and a rotating fin assembly according to an embodiment of the present invention;

[0026] Figure 3 FIG. shows an embodiment of the present invention Figure 2 magnified schematic structural diagram at A;

[0027] Figure 4 FIG. shows a schematic structural diagram of an injection assembly according to an embodiment of the present invention;

[0028] In the figure: 1, frame; 2, heat exchange tube; 3, water inlet pipe; 4, water outlet pipe; 5, limiting ring; 6, circular ring; 7, chain belt; 8, sprocket; 9, motor; 10, arc-shaped frame; 11, spray pipe; 12, spray hole; 13, connecting plate; 14, cylinder block; 15, fixing plate; 16, first conduit; 17, second conduit; 18, one-way valve; 19, piston plate; 20, spring; 21, push rod; 22, extrusion block; 23, tooth; 24, through pipe; 25, fan; 26, fin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0030] The present invention provides a heat exchange device for ceramic product production, as Figures 1 to 4 shown, including a frame 1. A plurality of heat exchange tubes 2 are provided inside the frame 1. A drainage device for introducing waste gas is provided at the rear side of the frame 1. A rotating fin assembly capable of rotating around the heat exchange tubes 2 for heat conduction is provided outside the heat exchange tubes 2;

[0031] The rotating fin assembly includes: a pair of limiting rings 5, fins 26, a pair of circular rings 6, and a driving assembly for driving the circular rings 6 to rotate;

[0032] The fin 26 is rotatably sleeved outside the heat exchange tube 2. The fin 26 is in contact with the surface of the heat exchange tube 2. A pair of rings 6 are respectively fixedly installed at both ends of the fin 26 and are rotatably sleeved outside the heat exchange tube 2. A pair of limiting rings 5 are respectively threadedly sleeved on both sides of the heat exchange tube 2. The driving assembly is connected to one of the rings 6 for driving it to rotate.

[0033] During use, the high-temperature waste gas is guided by the diversion assembly to pass through a plurality of heat exchange tubes 2 and fins 26. The fins 26 absorb heat and transfer the heat to the water flowing through the heat exchange tube 2, so as to heat the water and realize the utilization of heat energy. The temperature of the side of the fin 26 facing the waste gas is higher than the temperature of the side of the fin 26 facing away from the waste gas. The driving assembly drives the ring 6 to drive the fin 26 to rotate, so that the side of the fin 26 with a lower temperature is rotated to face the waste gas, and the side of the fin 26 with a higher temperature is rotated to the area facing away from the waste gas. When the side of the fin 26 with a lower temperature is rotated to face the waste gas, due to the lower temperature of the fin 26, heat absorption and transfer can be better carried out. During the process of the side of the fin 26 with a higher temperature rotating to the area facing away from the waste gas, its heat will gradually decrease to the same as the temperature of the area of the fin 26 facing away from the waste gas under the influence of the temperature of the area. Through the cyclic rotation of the fin 26, the low-temperature area on the side of the fin 26 facing away from the waste gas can be continuously rotated to face the waste gas, so as to improve the heat absorption and transfer effect of the fin 26 and enhance the heat exchange effect.

[0034] As Figure 1 shown, the driving assembly includes: teeth 23 arranged outside one of the rings 6, a chain belt 7 meshing with the teeth 23, a sprocket 8, and a motor 9;

[0035] The motor 9 is fixed on the top of the frame 1. The sprocket 8 is fixed on the output shaft of the motor 9. The chain belt 7 is sleeved outside the sprocket 8 and the teeth 23.

[0036] Start the motor 9 to make its output shaft rotate forward, thereby driving the sprocket 8 to rotate accordingly, and then cooperate with the chain belt 7 and the teeth 23 to drive the ring 6 to drive the fin 26 to rotate, realizing the driving of the fin 26. The rotational speed of the output shaft of the motor 9 is 5 revolutions per minute.

[0037] As Figures 2 to 4 shown, an acceleration assembly for accelerating the temperature recovery of the fin 26 is provided on the side of the fin 26 away from the diversion device;

[0038] The acceleration assembly includes: an arc-shaped frame 10, a nozzle 11, spray holes 12 arranged outside the nozzle 11, an injection assembly for injecting air in the area on the side of the heat exchange tube 2 facing away from the diversion assembly into the nozzle 11, and a connecting plate 13;

[0039] The arc-shaped frame 10 is fixedly connected to the frame 1 through the connecting plate 13. The spray pipe 11 is rotatably installed inside the arc-shaped frame 10. The arc-shaped frame 10 covers a part of the spray pipe 11. The uncovered area of the spray pipe 11 faces obliquely downward towards the fin 26.

[0040] If the diameter of the heat exchange tube 2 is small, when the high-temperature side of the fin 26 rotates to the low-temperature area, since the movement path of the fin 26 is short, when the high-temperature area of the fin 26 moves to the low-temperature area, its temperature cannot be reduced to the same as that of the low-temperature area and will be higher than the temperature of the low-temperature area, resulting in the subsequent inability to better absorb and transfer heat.

[0041] Therefore, when the fin 26 rotates, the injection component is coordinated to continuously inject the low-temperature air in the area of the heat exchange tube 2 on the side away from the drainage component into the spray pipe 11, so that the rotating fin 26 is blown through the spray holes 12, enabling the temperature of the fin 26 to be accelerated to be the same as the temperature of the area on the side away from the exhaust gas, ensuring the subsequent heat absorption and transfer efficiency of the fin 26. Moreover, through the rotation of the fin 26 and the coordinated blown air flow, the dust on the surface of the fin 26 can be blown off, cleaning the fin 26 and preventing excessive dust attachment from affecting the transfer effect of the fin 26.

[0042] As Figures 2 to 4 shown, the injection component includes: a cylinder block 14, a fixing plate 15, a first conduit 16, a second conduit 17, a one-way valve 18, a piston plate 19, a spring 20, a push rod 21, and extrusion blocks 22 arranged equidistantly around the outer side of the ring 6;

[0043] The cylinder block 14 is fixed inside the frame 1 through the fixing plate 15. The first conduit 16 and the second conduit 17 are fixed on the cylinder block 14 and communicate with the cylinder block 14. The one-way valve 18 is arranged inside the first conduit 16 and the second conduit 17. The piston plate 19 is arranged inside the cylinder block 14. The spring 20 connects the piston plate 19 to the cylinder block 14. The push rod 21 is fixed on the side of the piston plate 19 close to the ring 6. One end of the first conduit 16 is connected and rotatably to the middle of one end of the spray pipe 11. The cylinder block 14, the first conduit 16, the second conduit 17, and the spray pipe 11 are on the side of the fin 26 away from the drainage component. The temperatures of the cylinder block 14, the first conduit 16, the second conduit 17, and the spray pipe 11 are the same as the temperature of the area on the side of the fin 26 away from the drainage component.

[0044] As the ring 6 rotates, the squeezing block 22 moves, and the squeezing block 22 contacts the push rod 21, squeezing the push rod 21 and moving it away from the ring 6, so that the piston plate 19 moves to compress the spring 20 to deform it and generate a force. As the piston plate 19 moves, the air in the cylinder 14 is squeezed outward. At this time, the one-way valve 18 located in the first conduit 16 is opened, and the one-way valve 18 located in the second conduit 17 is closed. The air enters the nozzle 11 through the first conduit 16 and is ejected through the nozzle hole 12 to blow the rotating fin 26. When the squeezing block 22 leaves the push rod 21 and the spring 20 is reset, the piston plate 19 is reset, and air is replenished in the cylinder 14. At this time, the one-way valve 18 located in the first conduit 16 is closed, and the one-way valve 18 located in the second conduit 17 is opened. The air in the area on one side of the fin 26 away from the drainage component is drawn into the cylinder 14 for replenishment.

[0045] like Figure 2 As shown, one end of the second conduit 17 away from the cylinder body 14 is located in the area on one side of the fin 26 away from the drainage assembly.

[0046] The temperature of the air drawn into the cylinder 14 through the second conduit 17 is made consistent with the temperature of the area on the side of the fin 26 facing away from the drainage assembly.

[0047] like Figure 3 As shown, the extrusion block 22 is specifically configured as a plate-shaped component with an arc surface on one side, and the extrusion block 22 can cooperate with the arc surface to extrude the push rod 21.

[0048] The circular ring 6 rotates with the squeezing block 22 until the arc surface contacts the push rod 21 , so that the push rod 21 is squeezed to move with the piston plate 19 in the direction away from the circular ring 6 .

[0049] like Figures 1 to 2 As shown, the drainage assembly includes: a through pipe 24 and a fan 25;

[0050] The through pipe 24 is fixed on one side of the frame 1 , and the fan 25 is fixed inside the through pipe 24 .

[0051] The exhaust gas is introduced into the through pipe 24 through the fan 25 so as to be blown toward the heat exchange tubes 2 and the fins 26 .

[0052] like Figure 1 As shown, a plurality of heat exchange tubes 2 are staggeredly arranged in the frame 1, the ends of the heat exchange tubes 2 are fixedly connected to the inner wall of the frame 1, channels connected to the ends of the heat exchange tubes 2 are symmetrically arranged in the frame 1, a water inlet pipe 3 connected to one channel is arranged at the lower part of one side of the frame 1, and a water outlet pipe 4 connected to the other channel is arranged at the upper part of the side of the frame 1 away from the water inlet pipe 3.

[0053] Cold water is introduced into the channel through the water inlet pipe 3, and the cold water is discharged through the heat exchange tube 2, the channel, and the water outlet pipe 4.

[0054] Working principle: Cold water is introduced into the channel through the water inlet pipe 3, and the cold water is discharged through the heat exchange pipe 2, the channel, and the water outlet pipe 4. During use, the high-temperature waste gas is guided by the drainage component to pass through a plurality of heat exchange pipes 2 and fins 26. The fins 26 absorb heat and transfer the heat to the water flowing through the heat exchange pipe 2, so as to heat the water and realize the utilization of thermal energy. The temperature of the side of the fin 26 facing the waste gas is higher than the temperature of the side of the fin 26 facing away from the waste gas. Start the motor 9 to make its output shaft rotate forward, thus driving the sprocket 8 to rotate accordingly, and then cooperate with the chain belt 7 and the teeth 23 to drive the ring 6 to drive the fins 26 to rotate, so that the side of the fin 26 with a lower temperature is rotated to face the waste gas, and the side of the fin 26 with a higher temperature is rotated to the area facing away from the waste gas. When the side of the fin 26 with a lower temperature is rotated to face the waste gas, due to the lower temperature of the fin 26, heat absorption and transfer can be better carried out. During the process of the side of the fin 26 with a higher temperature rotating to the area facing away from the waste gas, its heat will gradually decrease to the same temperature as the area of the fin 26 facing away from the waste gas due to the influence of the temperature of the area. Through the cyclic rotation of the fins 26, the low-temperature area on the side of the fins 26 facing away from the waste gas can be continuously rotated to face the waste gas, so as to improve the heat absorption and transfer effect of the fins 26 and enhance the heat exchange effect;If the diameter of the heat exchange tube 2 is small, when the side of the fin 26 with high temperature rotates to the area with low temperature, due to the short movement path of the fin 26, the temperature of the high temperature area of ​​the fin 26 cannot be reduced to the same temperature as the low temperature area when it moves to the low temperature area, and will be higher than the temperature of the low temperature area, resulting in the subsequent inability to better absorb and transfer heat. Therefore, when the fin 26 rotates, the ring 6 rotates accordingly, moving with the extrusion block 22. The extrusion block 22 contacts the push rod 21, squeezing the push rod 21 to move it away from the ring 6, so that the piston plate 19 moves to compress the spring 20 to deform it and generate a force. With the movement of the piston plate 19, the air in the cylinder 14 is squeezed out. At this time, the one-way valve 18 located in the first conduit 16 is opened, and the one-way valve 18 located in the second conduit 17 is closed. The air enters the nozzle 11 through the first conduit 16 and is ejected through the nozzle hole 12 to blow the rotating fin 26, so that it can The temperature of the fin 26 is accelerated to be reduced to the same temperature as the area on the side away from the exhaust gas, so that the subsequent heat absorption and transfer efficiency of the fin 26 can be guaranteed. The dust on the surface of the fin 26 can be blown off by the rotation of the fin 26 and the blown air flow, so that the fin 26 can be cleaned to prevent excessive dust from attaching to the fin 26 and affecting the transfer effect of the fin 26. When the extrusion block 22 leaves the push rod 21, the spring 20 is reset with the piston plate 19, and air is replenished in the cylinder 14. At this time, the one-way valve 18 in the first conduit 16 is closed, and the one-way valve 18 in the second conduit 17 is opened. The air in the area on the side of the fin 26 away from the drainage component is drawn into the cylinder 14 for replenishment. By continuously drawing in and ejecting the air in the area on the side of the fin 26 away from the drainage component to the surface of the fin 26, the speed at which the temperature of the fin 26 is reduced to the temperature of the area on the side of the fin 26 away from the drainage component is greatly improved, ensuring that the subsequent fin 26 can better absorb and transfer heat. ;

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A heat exchange device for producing ceramic products, comprising a frame (1), characterized in that: A plurality of heat exchange tubes (2) are arranged inside the frame (1), a drainage device for introducing exhaust gas is arranged on the rear side of the frame (1), and a rotating fin assembly capable of rotating around the heat exchange tube (2) for heat conduction is arranged outside the heat exchange tube (2); The rotating fin assembly comprises: a pair of limiting rings (5), fins (26), a pair of circular rings (6), and a driving assembly for driving the circular rings (6) to rotate; The fin (26) is rotatably sleeved on the outside of the heat exchange tube (2); a pair of circular rings (6) are respectively fixedly mounted on the two ends of the fin (26) and rotatably sleeved on the outside of the heat exchange tube (2); a pair of limiting rings (5) are respectively threadedly sleeved on both sides of the heat exchange tube (2); and the driving component is connected to the circular ring (6) on one side for driving the rotation thereof.

2. The heat exchange device for ceramic product production according to claim 1, characterized in that: The driving assembly comprises: teeth (23) arranged outside a circular ring (6) on one side, a chain belt (7) meshing with the teeth (23), a sprocket (8), and a motor (9); The motor (9) is fixed on the top of the frame (1), the sprocket (8) is fixed on the output shaft of the motor (9), and the chain belt (7) is sleeved outside the sprocket (8) and the teeth (23).

3. The heat exchange device for ceramic product production according to claim 2, characterized in that: An acceleration component for accelerating the temperature recovery of the fin (26) is provided on a side of the fin (26) away from the drainage device; The acceleration component comprises: an arc frame (10), a nozzle (11), a nozzle hole (12) arranged outside the nozzle (11), an injection component for injecting air in a region of a side of the heat exchange tube (2) away from the flow guide component into the nozzle (11), and a connecting plate (13); The arc frame (10) is fixedly connected to the frame (1) via a connecting plate (13); the nozzle (11) is rotatably mounted inside the arc frame (10); the arc frame (10) covers a partial area of ​​the nozzle (11); and the uncovered area of ​​the nozzle (11) is diagonally downward toward the fin (26).

4. The heat exchange device for ceramic product production according to claim 3, characterized in that: The injection assembly comprises: a cylinder body (14), a fixing plate (15), a first conduit (16), a second conduit (17), a one-way valve (18), a piston plate (19), a spring (20), a push rod (21), and extrusion blocks (22) equidistantly arranged around the outside of the ring (6); The cylinder body (14) is fixed inside the frame (1) through a fixing plate (15); the first conduit (16) and the second conduit (17) are fixed on the cylinder body (14) and communicated with the cylinder body (14); the one-way valve (18) is arranged inside the first conduit (16) and the second conduit (17); the piston plate (19) is arranged inside the cylinder body (14); the spring (20) connects the piston plate (19) and the cylinder body (14); the push rod (21) is fixed on a side of the piston plate (19) close to the ring (6); one end of the first conduit (16) is communicated with the middle part of one end of the nozzle (11) and is rotatably connected.

5. The heat exchange device for ceramic product production according to claim 4, characterized in that: The end of the second conduit (17) away from the cylinder body (14) is located in the area on the side of the fin (26) facing away from the drainage component.

6. The heat exchange device for ceramic product production according to claim 5, characterized in that: The extrusion block (22) is specifically configured as a plate-shaped component with an arc surface on one side, and the extrusion block (22) can cooperate with the arc surface to extrude the push rod (21).

7. The heat exchange device for ceramic product production according to claim 6, characterized in that: The drainage assembly comprises: a through pipe (24) and a fan (25); The through pipe (24) is fixed on one side of the frame (1), and the fan (25) is fixed inside the through pipe (24).

8. The heat exchange device for ceramic product production according to claim 7, characterized in that: A plurality of heat exchange tubes (2) are arranged in a staggered manner in the frame (1); the ends of the heat exchange tubes (2) are fixedly connected to the inner wall of the frame (1); channels communicating with the ends of the heat exchange tubes (2) are symmetrically arranged in the frame (1); a water inlet pipe (3) communicating with the channel on one side is arranged at a lower portion of one side of the frame (1); and a water outlet pipe (4) communicating with the channel on the other side is arranged at an upper portion of a side of the frame (1) away from the water inlet pipe (3).

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