Exhaust pipe waste heat recovery mechanism suitable for different drying ovens

Abstract

The utility model discloses an exhaust pipe waste heat recovery mechanism suitable for different drying ovens, and belongs to the technical field of waste heat recovery. The exhaust pipe waste heat recovery mechanism suitable for the different drying ovens comprises a supporting frame, a plate heat exchanger is installed at the top end of the supporting frame, a hot fluid inlet of the plate heat exchanger is communicated with an air inlet cover, one end of the air inlet cover is communicated with an exhaust fan, and the input end of the exhaust fan is communicated with a main exhaust pipeline. An exhaust bent pipe is installed at a hot fluid outlet of the plate heat exchanger, a fresh air inlet straight pipe is installed at a cold fluid inlet of the plate heat exchanger, a fresh air outlet connecting pipe is installed at a cold fluid outlet of the plate heat exchanger, and the bottom end of the fresh air outlet connecting pipe communicates with a fresh air inlet fan. According to the waste heat recovery device for the coating machine, the waste heat recovery function of the exhaust pipe can be effectively achieved, the design of the external exhaust pipe can be suitable for coating machine drying ovens of different models, and the waste heat recovery device for the coating machine has high practical value.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery technology, specifically a waste heat recovery mechanism for exhaust pipes adapted to different ovens. Background Technology

[0002] A coating machine is a device used to apply paints, adhesives, and other coatings to various substrates. It is widely used in industries such as printing, packaging, electronics, and optics. A coating machine typically consists of an unwinding unit, a coating head, a drying unit, and a rewinding unit. The unwinding unit unfolds the substrate, the coating head evenly applies the paint to the substrate, the drying unit quickly dries the paint, and the rewinding unit winds up the coated substrate.

[0003] Based on the above, the inventors have discovered the following problems: Coating machines play an important role in industrial production, but traditional coating machine exhaust ducts often cause a large amount of waste heat to be lost, which is both energy-wasting and has a negative impact on the environment. Currently, coating machine exhaust ducts on the market do not utilize waste heat recovery, resulting in the waste of heat from the exhaust ducts and excessive energy consumption.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings, and provide a waste heat recovery mechanism for the exhaust pipe that can be adapted to different ovens, in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this invention is to provide a waste heat recovery mechanism for the exhaust duct of different ovens, so as to solve the problem mentioned in the background art that the existing exhaust duct of the coating machine does not use waste heat recovery, resulting in the heat of the exhaust duct being wasted and the energy consumption being too high.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A waste heat recovery mechanism for exhaust ducts adapted to different ovens includes a support frame. A plate heat exchanger is mounted on the top of the support frame. An air inlet hood is connected to the hot fluid inlet of the plate heat exchanger. An exhaust fan is connected to one end of the air inlet hood. The input end of the exhaust fan is connected to a main exhaust duct. An exhaust elbow is installed at the hot fluid outlet of the plate heat exchanger. A fresh air inlet straight pipe is installed at the cold fluid inlet of the plate heat exchanger. A fresh air outlet connecting pipe is installed at the cold fluid outlet of the plate heat exchanger. A fresh air inlet fan is connected to the bottom end of the fresh air outlet connecting pipe. A filter inlet pipe is connected to the output end of the fresh air inlet fan. A fresh air filter is installed at one end of the filter inlet pipe. A filter outlet pipe is installed at the output end of the fresh air filter. A main fresh air duct is connected to the end of the filter outlet pipe.

[0008] Furthermore, a first bellows is fixedly installed at one end of the air intake hood, and one end of the first bellows is fixedly connected to the output end of the exhaust fan.

[0009] The beneficial effect of adopting the above-mentioned further solution is that by fixing a first corrugated pipe at one end of the air intake hood, the connection between the air intake hood and the exhaust fan has a certain degree of flexibility, which can adapt to the vibration and displacement during equipment operation, reduce stress concentration at the connection, and improve the reliability and stability of the connection.

[0010] Furthermore, a second corrugated pipe is installed at the input end of the exhaust fan, and one end of the second corrugated pipe is fixedly connected to one end of the main exhaust duct.

[0011] The beneficial effect of adopting the above-mentioned further solution is that by fixing one end of the second corrugated pipe to one end of the main exhaust duct, damage to the connection part caused by equipment vibration or thermal expansion and contraction can be prevented, thus ensuring the stable operation of the exhaust system.

[0012] Furthermore, the bottom end of the exhaust fan is fixedly connected to the top end of the support frame.

[0013] The beneficial effect of adopting the above-mentioned further solution is that by fixing the bottom of the exhaust fan to the top of the support frame, the exhaust fan can be kept stable during operation, the exhaust efficiency can be improved, and the overall installation and maintenance of the equipment can be facilitated.

[0014] Furthermore, a third corrugated pipe is fixedly installed at the input end of the fresh air intake fan, and the top end of the third corrugated pipe is fixedly connected to the bottom end of the fresh air outlet connecting pipe.

[0015] The beneficial effect of adopting the above-mentioned further solution is that by fixing a third corrugated pipe at the input end of the fresh air intake fan, the connection flexibility is increased, which can adapt to displacement changes under different installation positions and operating conditions, and ensure the normal operation of the fresh air system.

[0016] Furthermore, a fixing frame is installed on one side of the fresh air intake fan, and one side of the fixing frame is fixedly connected to the inner side of the support frame.

[0017] The beneficial effect of adopting the above-mentioned further solution is that by installing a fixed frame on one side of the fresh air intake fan, the stability of the fresh air intake fan is enhanced, preventing it from shaking or shifting during operation and ensuring the reliability of the fresh air supply.

[0018] Furthermore, a fourth corrugated pipe is fixedly installed at the input end of the fresh air intake fan, and one end of the fourth corrugated pipe is connected to the other end of the filter air intake pipe.

[0019] The beneficial effect of adopting the above-mentioned further solution is that by fixing a fourth corrugated pipe at the input end of the fresh air intake fan, a flexible connection is achieved, which can absorb the vibration and impact during equipment operation, protect the filter air intake pipe and the fresh air intake fan, and extend the service life of the equipment.

[0020] Furthermore, a fifth corrugated pipe is fixedly installed at one end of the filter outlet duct, and one end of the fifth corrugated pipe is fixedly connected to one end of the fresh air main duct.

[0021] The beneficial effect of adopting the above-mentioned further solution is that a fifth corrugated pipe is fixedly installed at one end of the filter outlet pipe, which makes the connection part have a certain elasticity, can adapt to the deformation and displacement during the operation of the equipment, and ensure that the filtered fresh air can be smoothly delivered to the main fresh air duct.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: This exhaust duct waste heat recovery mechanism, adaptable to different ovens, effectively recovers waste heat in the oven exhaust duct through the arrangement of a support frame, plate heat exchanger, exhaust fan, fresh air intake fan, and fresh air filter, improving energy utilization efficiency and reducing energy consumption. Simultaneously, the external installation method adapts to different oven structures, improving the equipment's versatility. A first corrugated pipe is fixedly installed at one end of the air inlet hood, providing flexibility in the connection between the air inlet hood and the exhaust fan, adapting to vibrations and displacements during equipment operation, reducing stress concentration at the connection points, and improving the reliability and stability of the connection. A second corrugated pipe is fixedly connected at one end to one end of the main exhaust duct, preventing damage to the connection points due to equipment vibration or thermal expansion and contraction, ensuring stable operation of the exhaust system. A fixed connection between the bottom end of the exhaust fan and the top end of the support frame ensures the exhaust fan remains stable during operation, improving exhaust efficiency and facilitating overall equipment installation. For both installation and maintenance, a third corrugated pipe is fixedly installed at the input end of the fresh air intake fan, increasing the flexibility of the connection and adapting to displacement changes under different installation positions and operating conditions, ensuring the normal operation of the fresh air system. A fixed bracket is installed on one side of the fresh air intake fan, enhancing the stability of the fresh air intake fan and preventing it from shaking or shifting during operation, ensuring the reliability of the fresh air supply. A fourth corrugated pipe is fixedly installed at the input end of the fresh air intake fan, providing a flexible connection that can absorb vibrations and impacts during equipment operation, protecting the filter inlet pipe and the fresh air intake fan, and extending the service life of the equipment. A fifth corrugated pipe is fixedly installed at one end of the filter outlet pipe, giving the connection a certain degree of elasticity, adapting to deformation and displacement during equipment operation, and ensuring that the filtered fresh air can be smoothly delivered to the main fresh air duct. This utility model can effectively realize the waste heat recovery function of the exhaust pipe, and the design of the external exhaust pipe can be adapted to different models of coating machine ovens, which has high practical value. Attached Figure Description

[0023] Figure 1 This is a front view of an embodiment of the present utility model;

[0024] Figure 2 This is a top view of an embodiment of the present utility model;

[0025] Figure 3 This is a side view of an embodiment of the present utility model.

[0026] In the diagram: 100, support frame; 101, plate heat exchanger; 104, air inlet hood; 106, exhaust fan; 108, main exhaust duct; 102, exhaust bend; 103, fresh air inlet straight duct; 109, fresh air outlet connecting duct; 111, fresh air inlet fan; 113, filter inlet duct; 114, fresh air filter; 115, filter outlet duct; 117, main fresh air duct; 105, first corrugated pipe; 107, second corrugated pipe; 110, third corrugated pipe; 112, fixing frame; 116, fourth corrugated pipe; 118, fifth corrugated pipe. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-3This utility model provides a technical solution: a waste heat recovery mechanism for exhaust pipes adapted to different ovens, including a support frame 100, a plate heat exchanger 101 mounted on the top of the support frame 100, an air inlet hood 104 connected to the hot fluid inlet of the plate heat exchanger 101, an exhaust fan 106 connected to one end of the air inlet hood 104, a main exhaust duct 108 connected to the input end of the exhaust fan 106, an exhaust elbow 102 installed at the hot fluid outlet of the plate heat exchanger 101, a fresh air inlet straight pipe 103 installed at the cold fluid inlet of the plate heat exchanger 101, and a fresh air outlet connecting pipe 109 installed at the cold fluid outlet of the plate heat exchanger 101. The bottom is connected to a fresh air intake fan 111, the output end of which is connected to a filter inlet pipe 113. A fresh air filter 114 is installed at one end of the filter inlet pipe 113, and a filter outlet pipe 115 is installed at the output end of the fresh air filter 114. One end of the filter outlet pipe 115 is connected to a fresh air main pipe 117. Through the arrangement of the support frame 100, plate heat exchanger 101, exhaust fan 106, fresh air intake fan 111, and fresh air filter 114, the waste heat in the oven exhaust pipe can be effectively recovered, improving energy utilization efficiency and reducing energy consumption. At the same time, the external installation method can adapt to different oven structures, improving the versatility of the equipment.

[0029] 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.

[0030] Please see Figures 1-3A first corrugated pipe 105 is fixedly installed at one end of the air intake hood 104. One end of the first corrugated pipe 105 is fixedly connected to the output end of the exhaust fan 106. A second corrugated pipe 107 is installed at the input end of the exhaust fan 106. One end of the second corrugated pipe 107 is fixedly connected to one end of the main exhaust duct 108. The bottom end of the exhaust fan 106 is fixedly connected to the top end of the support frame 100. The first corrugated pipe 105 fixedly installed at one end of the air intake hood 104 provides a certain degree of flexibility in the connection between the air intake hood 104 and the exhaust fan 106. The second corrugated pipe 107 is fixedly connected to one end of the main exhaust pipe 108 to prevent damage to the connection due to equipment vibration or thermal expansion and contraction, thus ensuring the stable operation of the exhaust system. The exhaust fan 106 is fixedly connected to the bottom end of the support frame 100 to ensure that the exhaust fan 106 remains stable during operation, improving exhaust efficiency and facilitating the overall installation and maintenance of the equipment.

[0031] 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.

[0032] Please see Figures 1-3A third corrugated pipe 110 is fixedly installed at the input end of the fresh air intake fan 111. The top end of the third corrugated pipe 110 is fixedly connected to the bottom end of the fresh air outlet connecting pipe 109. A fixing bracket 112 is installed on one side of the fresh air intake fan 111, and one side of the fixing bracket 112 is fixedly connected to the inner side of the support frame 100. A fourth corrugated pipe 116 is fixedly installed at the input end of the fresh air intake fan 111. One end of the fourth corrugated pipe 116 is connected to the other end of the filter inlet pipe 113. A fifth corrugated pipe 118 is fixedly installed at one end of the filter outlet pipe 115, and one end of the fifth corrugated pipe 118 is fixedly connected to one end of the fresh air main pipe 117. The fixed installation of the third corrugated pipe 110 at the input end of the fresh air intake fan 111 increases the flexibility of the connection and can adapt to different installation positions. To ensure the normal operation of the fresh air system, a fixed bracket 112 is installed on one side of the fresh air intake fan 111 to enhance its stability and prevent it from shaking or shifting during operation, thus ensuring the reliability of the fresh air supply. A fourth corrugated pipe 116 is fixedly installed at the input end of the fresh air intake fan 111 to provide a flexible connection, absorbing vibrations and impacts during equipment operation, protecting the filter inlet pipe 113 and the fresh air intake fan 111, and extending the service life of the equipment. A fifth corrugated pipe 118 is fixedly installed at one end of the filter outlet pipe 115 to give the connection a certain degree of elasticity, which can adapt to deformation and displacement during equipment operation, ensuring that the filtered fresh air can be smoothly delivered to the main fresh air duct 117.

[0033] Specifically, the working principle of this exhaust duct waste heat recovery mechanism adapted to different ovens is as follows: During use, the setup of the support frame 100, plate heat exchanger 101, exhaust fan 106, fresh air intake fan 111, and fresh air filter 114 effectively recovers waste heat from the oven's exhaust duct, improving energy efficiency and reducing energy consumption. Simultaneously, the external installation method adapts to different oven structures, enhancing the equipment's versatility. A first corrugated pipe 105 is fixedly installed at one end of the air intake hood 104, allowing the air intake hood 104 to connect with the exhaust fan 106. The connection between the components has a certain degree of flexibility, which can adapt to vibration and displacement during equipment operation, reduce stress concentration at the connection points, and improve the reliability and stability of the connection. One end of the second corrugated pipe 107 is fixedly connected to one end of the main exhaust duct 108 to prevent damage to the connection points due to equipment vibration or thermal expansion and contraction, ensuring the stable operation of the exhaust system. The bottom end of the exhaust fan 106 is fixedly connected to the top end of the support frame 100 to ensure the exhaust fan 106 remains stable during operation, improving exhaust efficiency and facilitating the overall installation of the equipment. For ease of maintenance, a third corrugated pipe 110 is fixedly installed at the input end of the fresh air intake fan 111, increasing connection flexibility and adapting to displacement changes under different installation positions and operating conditions, ensuring the normal operation of the fresh air system. A fixing bracket 112 is installed on one side of the fresh air intake fan 111, enhancing the stability of the fresh air intake fan 111 and preventing it from shaking or shifting during operation, ensuring the reliability of the fresh air supply. A fourth corrugated pipe 116 is fixedly installed at the input end of the fresh air intake fan 111, providing a flexible connection. It can absorb the vibration and impact during equipment operation, protect the filter inlet pipe 113 and the fresh air intake fan 111, and extend the service life of the equipment. A fifth corrugated pipe 118 is fixedly installed at one end of the filter outlet pipe 115, so that the connection part has a certain elasticity and can adapt to the deformation and displacement during equipment operation, ensuring that the filtered fresh air can be smoothly delivered to the fresh air main pipe 117. This utility model can effectively realize the waste heat recovery function of the exhaust pipe, and the design of the external exhaust pipe can be adapted to different models of coating machine ovens, which has high practical value.

Claims

1. A waste heat recovery mechanism for exhaust pipes adapted to different ovens, characterized in that, The system includes a support frame (100), a plate heat exchanger (101) mounted on its top end, an air inlet hood (104) connected to the hot fluid inlet of the plate heat exchanger (101), an exhaust fan (106) connected to one end of the air inlet hood (104), a main exhaust duct (108) connected to the input end of the exhaust fan (106), an exhaust elbow (102) installed at the hot fluid outlet of the plate heat exchanger (101), and a fresh air inlet straight pipe (103) installed at the cold fluid inlet of the plate heat exchanger (101). A fresh air outlet connection pipe (109) is installed at the cold fluid outlet of the plate heat exchanger (101). The bottom end of the fresh air outlet connection pipe (109) is connected to a fresh air intake fan (111). The output end of the fresh air intake fan (111) is connected to a filter inlet pipe (113). A fresh air filter (114) is installed at one end of the filter inlet pipe (113). A filter outlet pipe (115) is installed at the output end of the fresh air filter (114). One end of the filter outlet pipe (115) is connected to a fresh air main pipe (117).

2. The exhaust duct waste heat recovery mechanism adapted to different ovens according to claim 1, characterized in that, One end of the air intake hood (104) is fixedly installed with a first corrugated pipe (105), and one end of the first corrugated pipe (105) is fixedly connected to the output end of the exhaust fan (106).

3. The exhaust pipe waste heat recovery mechanism adapted to different ovens according to claim 1, characterized in that, The input end of the exhaust fan (106) is equipped with a second corrugated pipe (107), one end of which is fixedly connected to one end of the main exhaust duct (108).

4. The exhaust pipe waste heat recovery mechanism adapted to different ovens according to claim 1, characterized in that, The bottom end of the exhaust fan (106) is fixedly connected to the top end of the support frame (100).

5. A waste heat recovery mechanism for exhaust pipes adapted to different ovens according to claim 1, characterized in that, The input end of the fresh air intake fan (111) is fixedly installed with a third corrugated pipe (110), and the top end of the third corrugated pipe (110) is fixedly connected to the bottom end of the fresh air outlet connecting pipe (109).

6. A waste heat recovery mechanism for exhaust pipes adapted to different ovens according to claim 1, characterized in that, A fixing frame (112) is installed on one side of the fresh air intake fan (111), and one side of the fixing frame (112) is fixedly connected to the inner side of the support frame (100).

7. A waste heat recovery mechanism for exhaust pipes adapted to different ovens according to claim 1, characterized in that, The input end of the fresh air intake fan (111) is fixedly installed with a fourth corrugated pipe (116), one end of which is connected to the other end of the filter air intake pipe (113).

8. A waste heat recovery mechanism for exhaust pipes adapted to different ovens according to claim 1, characterized in that, A fifth corrugated pipe (118) is fixedly installed at one end of the filter outlet pipe (115), and one end of the fifth corrugated pipe (118) is fixedly connected to one end of the fresh air main pipe (117).

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