Energy-saving oven heating and drying system

Abstract

The utility model discloses an energy-saving oven heating and drying system which comprises an oven at least provided with an air inlet and an air outlet. The two ends of the circulating air assembly are connected with the air inlet and the air outlet respectively; the separation assembly is arranged on the circulating air assembly, and the separation assembly is used for separating cold air flow from hot air flow; and one end of the heating assembly is connected with the circulating air assembly, one end of the heating assembly is arranged between the air inlet and the separation assembly, and the other end of the heating assembly is provided with an air inlet. Through the application of the oven drying system suitable for battery production, the oven drying system suitable for battery production is simple in structure and reliable in operation, secondary utilization of air exhausted by the oven can be achieved, the overall energy consumption is effectively reduced, and the safety guarantee capacity of operation and production of the oven is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to an energy-saving oven heating and drying system. Background Art

[0002] At present, power batteries are widely used in various industries. In the process of power battery production, it is often necessary to coat the parts of the power battery through a coating machine. In the coating process, oven drying is one of the more critical links. The existing oven heating energy consumption generally accounts for about 30-40% of the total energy consumption of the production line. Therefore, the control of its energy consumption is of great significance to the energy consumption management of the entire battery production.

[0003] Existing oven drying often adopts the traditional circulation method, that is, the inlet and outlet air of the oven is directly used as the circulating air for reciprocating circulation through a single internal circulation pipe, and the circulating air is heated by a corresponding heating device. However, based on this traditional circulation method, on the one hand, the energy consumption required for heating is relatively large; on the other hand, the above-mentioned circulating air will carry a certain amount of solvent NMP, which can easily enter the heating device after condensation, causing it to corrode and short-circuit, and even pose a risk of electric spark explosion. Utility Model Content

[0004] In view of this, in order to solve the above problems, the purpose of the utility model is to provide an energy-saving oven heating and drying system, comprising:

[0005] An oven, the oven having at least an air inlet and an air outlet;

[0006] A circulating air component, wherein two ends of the circulating air component are respectively connected to the air inlet and the air outlet;

[0007] A separation component, the separation component is arranged on the circulating air component, and the separation component is used to separate the cold air flow and the hot air flow;

[0008] A heating component, one end of which is connected to the circulating air component, one end of which is arranged between the air inlet and the separation component, and the other end of which has an air inlet.

[0009] In another preferred embodiment, the separation component includes: a separation body, the separation body having at least a hot air outlet, a cold air outlet and a mixing inlet, the mixing inlet is connected to the exhaust port through the circulating air component, and the hot air outlet is connected to the circulating air component.

[0010] In another preferred embodiment, the separation body comprises: a first chamber and a second chamber which are interconnected, the first chamber is provided with the cold air outlet and the mixing inlet, and the second chamber is provided with the hot air outlet.

[0011] In another preferred embodiment, a vortex channel is formed in the second chamber, the hot air outlet is arranged at one end of the vortex channel, and the cold air outlet is arranged opposite to the other end of the vortex channel.

[0012] In another preferred embodiment, the inner wall of the vortex channel is arranged in a wavy double helix structure.

[0013] In another preferred embodiment, the separation body further comprises: a blocking member, wherein the blocking member is arranged at the hot air outlet, and a ventilation gap is provided between an outer edge of the blocking member and an inner edge of the hot air outlet.

[0014] In another preferred embodiment, the separation component also includes: an exhaust duct, an exhaust control valve and an exhaust fan, one end of the exhaust duct is connected to the cold air outlet, the exhaust control valve and the exhaust fan are both arranged on the exhaust duct, and the other end of the exhaust duct has an air outlet.

[0015] In another preferred embodiment, the circulating air component includes: a circulating pipeline, a circulating fan, a hot air control valve and an intake control valve, the two ends of the circulating pipeline are respectively connected to the air inlet and the exhaust port, the circulating fan, the hot air control valve and the intake control valve are all arranged on the circulating pipeline, the intake control valve is arranged between the exhaust port and the separation component, and the circulating fan and the hot air control valve are both arranged between the air inlet and the separation component.

[0016] In another preferred embodiment, the heating component includes: a heating tube and a heating bag, one end of the heating tube is connected to the circulating air component, the other end of the heating tube has the air inlet, and the heating bag is arranged on the heating tube.

[0017] In another preferred embodiment, it further includes: a temperature detection device, which is communicatively connected to the heating bag, and the temperature detection device is at least used to detect the temperature at the air inlet.

[0018] Due to the adoption of the above technical solution, the utility model has the following positive effects compared with the prior art: through the application of the utility model, an oven drying system suitable for battery production is provided, the system has a simple structure and reliable operation, can realize the secondary utilization of the air exhausted from the oven, effectively reduces the overall energy consumption, and significantly improves the safety guarantee capability of the oven operation production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of an energy-saving oven heating and drying system of the utility model;

[0020] Figure 2 This is a schematic diagram of the separation components of an energy-saving oven heating and drying system of the utility model.

[0021] In the attached figure:

[0022] 1. Oven; 2. Air inlet; 3. Air outlet; 4. Circulating air component; 5. Separation component; 6. Cold air flow; 7. Hot air flow; 8. Heating component; 9. Air inlet; 10. Separation body; 11. Hot air outlet; 12. Cold air outlet; 13. Mixing inlet; 14. First chamber; 15. Second chamber; 16. Eddy current channel; 17. Blocking member; 18. Ventilation gap; 19. Exhaust duct; 20. Exhaust control valve; 21. Exhaust fan; 22. Air outlet; 23. Circulating duct; 24. Circulating fan; 25. Hot air control valve; 26. Inlet control valve; 27. Heating pipe; 28. Heating bag; 29. ​​Temperature detection device; 30. Additional control valve. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0024] like Figure 1 As shown, an energy-saving oven heating and drying system of a preferred embodiment is shown, comprising: an oven 1, the oven 1 having at least an air inlet 2 and an air outlet 3; a circulating air component 4, the two ends of the circulating air component 4 are respectively connected to the air inlet 2 and the air outlet 3; a separation component 5, the separation component 5 is arranged on the circulating air component 4, and the separation component 5 is used to separate the cold air flow 6 and the hot air flow 7; a heating component 8, one end of the heating component 8 is connected to the circulating air component 4, one end of the heating component 8 is arranged between the air inlet 2 and the separation component 5, and the other end of the heating component 8 has an air inlet 9. Furthermore, the airflow with a certain temperature discharged from the oven 1 enters the circulating air component 4 through the exhaust port 3, and first passes through the separation component 5, which separates the airflow with a certain temperature into a hot airflow 7 with a higher temperature and a cold airflow 6 with a lower temperature, and discharges the cold airflow 6 to the outside; at the same time, the hot airflow 7 returns to the circulating air component 4 and continues to move toward the air inlet 2; the heating component 8 can introduce external airflow, heat it, mix it with the above-mentioned hot airflow 7, and then transport it toward the oven 1; wherein the above-mentioned air inlet 9 is used for external air to enter the system.

[0025] like Figure 2As shown, further, as a preferred embodiment, the separation component 5 includes: a separation body 10, the separation body 10 has at least a hot air outlet 11, a cold air outlet 12 and a mixing inlet 13, the mixing inlet 13 is connected to the exhaust port 3 through the circulating air component 4, and the hot air outlet 11 is connected to the circulating air component 4. Further, Figure 2 The arrows in the figure represent the fluid flow directions at the corresponding positions of the system; wherein the hot air outlet 11 is used for the separated hot air flow 7 to leave the separation body 10 and guide it back to the circulating air component 4, the cold air outlet 12 is used for the separated cold air flow 6 to leave the separation body 10 and guide it to be released to the outside of the system, and the mixing inlet 13 is used for receiving the air flow with a certain temperature from the exhaust port 3 of the oven 1; and in the process of separation, the solvent NMP entrained in the air flow can be mostly retained in the separation body 10.

[0026] Furthermore, as a preferred embodiment, the separation body 10 includes: a first chamber 14 and a second chamber 15 which are interconnected, the first chamber 14 is provided with a cold air outlet 12 and a mixing inlet 13 , and the second chamber 15 is provided with a hot air outlet 11 .

[0027] Furthermore, as a preferred embodiment, the outer contours of the radial cross-sections of the first chamber 14 and the second chamber 15 are both rectangular.

[0028] Further, as a preferred embodiment, the first cavity 14 is a rectangular body extending in the vertical direction, and the second cavity is a rectangular body arranged in the horizontal direction.

[0029] Further, as a preferred embodiment, the mixing inlet 13 is disposed at the upper end of the first chamber 14 , and the cold air outlet 12 is disposed at the lower end of the first chamber 14 .

[0030] Further, as a preferred embodiment, a vortex channel 16 is formed in the second chamber 15, the hot air outlet 11 is arranged at one end of the vortex channel 16, and the cold air outlet 12 is arranged opposite to the other end of the vortex channel 16. Further, the airflow with a certain temperature entering the separation body 10 first enters the interior of the first chamber 14 from top to bottom, and forms a vortex under the spiral guidance of the second chamber 15 in the horizontal direction, so that it is separated into the hot airflow 7 with a higher temperature in the outer layer and the cold airflow 6 with a lower temperature in the middle.

[0031] Further, as a preferred embodiment, the radial cross section of the vortex channel 16 is circular.

[0032] Further, as a preferred embodiment, the inner wall of the vortex channel 16 is arranged in a wavy double helix structure. Further, in the direction along the axis, the inner diameter of the vortex channel 16 is arranged to change periodically, preferably to increase and decrease reciprocally to form a wave shape with crests and troughs; the above double helix is ​​preferably two axially staggered helical surfaces, and the radial dimensions of the helical surfaces are arranged to be large and small.

[0033] Furthermore, as a preferred embodiment, the first chamber 14 and the second chamber 15 are connected via a through opening.

[0034] Further, as a preferred embodiment, the through port, the cold air outlet 12 and the hot air outlet 11 are coaxially arranged.

[0035] Further, as a preferred embodiment, the separation body 10 further includes: a blocking member 17, the blocking member 17 is arranged at the hot air outlet 11, and a ventilation gap 18 is provided between the outer edge of the blocking member 17 and the inner edge of the hot air outlet 11. Further, by the arrangement of the blocking member 17, the cold air flow 6 is rebounded at the end of the vortex channel 16 and moves in the reverse direction close to the cold air outlet 12, and the hot air flow 7 outside the vortex is released through the ventilation gap 18.

[0036] Further, as a preferred embodiment, the blocking member 17 is arranged in a conical structure, and preferably, the middle protruding end of the axial cross section of the conical structure is arranged at 120 degrees.

[0037] Further, as a preferred embodiment, the middle protruding end of the conical structure is arranged toward the hot air outlet 11, and the end of the conical structure away from the hot air outlet 11 is arranged in a plane.

[0038] Further, as a preferred embodiment, the conical structure is preferably connected to the circulating air component 4 adjacent to the hot air outlet 11 through a bracket or other attachment methods; or attached to the outer wall of the second chamber 15.

[0039] Furthermore, as a preferred embodiment, the separation component 5 also includes: an exhaust duct 19, an exhaust control valve 20 and an exhaust fan 21, one end of the exhaust duct 19 is connected to the cold air outlet 12, the exhaust control valve 20 and the exhaust fan 21 are both arranged on the exhaust duct 19, and the other end of the exhaust duct 19 has an air outlet 22.

[0040] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention.

[0041] The utility model also has the following implementation methods based on the above:

[0042] In a further embodiment of the utility model, the circulating air component 4 includes: a circulating pipeline 23, a circulating fan 24, a hot air control valve 25 and an intake control valve 26, the two ends of the circulating pipeline 23 are respectively connected to the air inlet 2 and the exhaust port 3, the circulating fan 24, the hot air control valve 25 and the intake control valve 26 are all arranged on the circulating pipeline 23, the intake control valve 26 is arranged between the exhaust port 3 and the separation component 5, and the circulating fan 24 and the hot air control valve 25 are both arranged between the air inlet 2 and the separation component 5.

[0043] In a further embodiment of the present invention, an additional control valve 30 is further provided on the circulation pipeline 23 between the separation component 5 and the circulation fan 24. Further, the additional control valve 30 can control the flow rate and temperature of the airflow from the hot air outlet 11 of the separation component 5.

[0044] In a further embodiment of the present invention, the circulation fan 24 is disposed at a middle position along the length of the circulation pipeline 23 , and is preferably disposed closer to the oven 1 than the heating assembly 8 .

[0045] In a further embodiment of the utility model, the heating component 8 includes: a heating tube 27 and a heating bag 28, one end of the heating tube 27 is connected to the circulating air component 4, the other end of the heating tube 27 has an air inlet 9, and the heating bag 28 is arranged on the heating tube 27.

[0046] In a further embodiment of the utility model, it further comprises: a temperature detection device 29, the temperature detection device 29 is connected to the heating package 28 for communication, and the temperature detection device 29 is at least used to detect the temperature at the air inlet 2. Further, the temperature of the airflow at the air inlet 2, that is, the temperature of the airflow entering the oven 1, is obtained through the temperature detection device 29, and the heating state of the heating package 28 is controlled through the corresponding PID control system.

[0047] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving oven heating and drying system, characterized in that: include: An oven, the oven having at least an air inlet and an air outlet; A circulating air component, the two ends of which are respectively connected to the air inlet and the air outlet; a separation component, which is arranged on the circulating air component and is used to separate the cold air flow and the hot air flow; A heating component, one end of which is connected to the circulating air component, one end of which is arranged between the air inlet and the separation component, and the other end of which has an air inlet.

2. The energy-saving oven heating and drying system according to claim 1 is characterized in that: The separation component comprises: a separation body, the separation body having at least a hot air outlet, a cold air outlet and a mixing inlet, the mixing inlet is connected to the exhaust port through the circulating air component, and the hot air outlet is connected to the circulating air component.

3. The energy-saving oven heating and drying system according to claim 2 is characterized in that: The separation body comprises: a first chamber and a second chamber which are interconnected, the first chamber is provided with the cold air outlet and the mixing inlet, and the second chamber is provided with the hot air outlet.

4. The energy-saving oven heating and drying system according to claim 3 is characterized in that: A vortex channel is formed in the second chamber, the hot air outlet is arranged at one end of the vortex channel, and the cold air outlet is arranged opposite to the other end of the vortex channel.

5. The energy-saving oven heating and drying system according to claim 4 is characterized in that: The inner wall of the vortex channel is arranged in a wavy double helix structure.

6. The energy-saving oven heating and drying system according to claim 3 is characterized in that: The separation body further comprises: a blocking member, which is arranged at the hot air outlet, and a ventilation gap is provided between the outer edge of the blocking member and the inner edge of the hot air outlet.

7. The energy-saving oven heating and drying system according to claim 2 is characterized in that: The separation component also includes: an exhaust duct, an exhaust control valve and an exhaust fan, one end of the exhaust duct is connected to the cold air outlet, the exhaust control valve and the exhaust fan are both arranged on the exhaust duct, and the other end of the exhaust duct has an air outlet.

8. The energy-saving oven heating and drying system according to claim 1 is characterized in that: The circulating air component includes: a circulating pipeline, a circulating fan, a hot air control valve and an intake control valve. The two ends of the circulating pipeline are respectively connected to the air inlet and the air outlet. The circulating fan, the hot air control valve and the intake control valve are all arranged on the circulating pipeline. The intake control valve is arranged between the air outlet and the separation component. The circulating fan and the hot air control valve are both arranged between the air inlet and the separation component.

9. The energy-saving oven heating and drying system according to claim 1, characterized in that: The heating component comprises: a heating tube and a heating bag, one end of the heating tube is connected to the circulating air component, the other end of the heating tube has the air inlet, and the heating bag is arranged on the heating tube.

10. The energy-saving oven heating and drying system according to claim 9, characterized in that: Also includes: A temperature detection device is communicatively connected with the heating bag, and the temperature detection device is at least used to detect the temperature at the air inlet.

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