Energy-saving heating device of coating machine
By setting up a heat exchanger in the coating machine and using the exhaust gas heat to heat the fresh air, the problem of high energy consumption caused by exhaust gas emissions in the prior art is solved, efficient heating and energy recovery of the fresh air is achieved, and overall energy consumption is reduced.
Patent Information
- Application Number
- CN202420875135.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-24
AI Technical Summary
In the existing coating machine processing process, the exhaust gas generated after drying the material needs to be discharged, resulting in a decrease in air pressure, and fresh air needs to be compensated for heating, which consumes a lot of energy.
A heat exchanger is installed in the coating machine, and heat exchange is performed using the high-temperature exhaust gas in the exhaust duct and the low-temperature fresh air in the fresh air duct to increase the initial temperature of the fresh air and reduce subsequent heating energy consumption.
Through the setting of the heat exchanger, the exhaust gas heat can be effectively recovered, the energy consumption required for heating fresh air is reduced, and the energy saving effect is achieved.
Smart Images
Figure CN222197688U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of coating machine processing equipment, in particular to an energy-saving heating device for a coating machine. Background Art
[0002] In the coating machine processing process, the surface of the processed material needs to be dried in an oven. Generally, the processed material is placed in the oven and the hot air is blown directly to achieve the drying effect. After the material is dried, some waste gas will be produced, which needs to be discharged. After the waste gas is discharged, the air pressure will decrease, so it is necessary to compensate the fresh air to the hot air circulation. It takes a lot of energy to heat the fresh air to the required temperature for drying. If the heat of the waste gas can be used to increase the initial temperature of the fresh air, it will effectively reduce the energy consumption required for subsequent heating of the fresh air. Utility Model Content
[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an energy-saving heating device for a coating machine. By setting a heat exchanger, the low-temperature gas in the fresh air duct and the high-temperature gas in the exhaust duct are heat exchanged to utilize the high temperature of the exhaust gas to heat the fresh air, thereby reducing the energy consumption of the subsequent heating package and achieving energy-saving effects.
[0004] The utility model adopts the following technical scheme: an energy-saving heating device for a coating machine, comprising an oven, a heating bag, a blower, a fresh air mechanism and an exhaust mechanism, wherein the fresh air mechanism, the blower, the heating bag and the oven are connected in sequence, and are used to convey low-temperature fresh air to the heating bag through the blower for heating and then supply it to the oven; the oven is connected to the exhaust mechanism, and is used to discharge part of the gas from the exhaust mechanism, and a heat exchanger is also arranged between the blower and the fresh air mechanism, and the fresh air pipeline of the fresh air mechanism passes through the heat exchanger, and the exhaust air pipeline of the exhaust mechanism passes through the heat exchanger, thereby allowing the low-temperature gas in the fresh air pipeline and the high-temperature gas in the exhaust pipeline to exchange heat, so that the low-temperature gas in the fresh air pipeline is heated.
[0005] As an improvement, the exhaust mechanism includes an exhaust inlet, the fresh air mechanism includes an air inlet, and the heat exchanger is arranged corresponding to the exhaust inlet and the air inlet, so that the high-temperature gas and the low-temperature gas enter the exhaust duct and the fresh air duct respectively from the exhaust inlet and the air inlet, and heat exchange is directly carried out at the heat exchanger.
[0006] As an improvement, the heating pack is arranged on one side of the oven, and the exhaust inlet is arranged on the other side of the oven.
[0007] As an improvement, regulating valves for adjusting the ventilation size are provided on both the fresh air duct and the exhaust air duct.
[0008] As an improvement, a ventilation pipeline is provided between the blower and the heating package, and a regulating valve for adjusting the ventilation size is arranged on the ventilation pipeline.
[0009] The beneficial effects of the utility model are as follows: through the setting of the heat exchanger, the temperature of the exhaust gas is effectively utilized to heat the fresh air, and then the heated fresh air is added to the hot air circulation, so that the heat of the exhaust air is effectively recovered, energy is saved, and the overall energy consumption is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a three-dimensional structure diagram of the utility model. Figure 1 .
[0011] Figure 2 This is a three-dimensional structure diagram of the utility model. Figure 2 . DETAILED DESCRIPTION
[0012] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0013] like Figure 1 , 2 As shown, a specific embodiment of the energy-saving heating device for a coating machine of the utility model is shown. The embodiment comprises an oven 1, a heating bag 2, a blower 3, a fresh air mechanism 4 and an exhaust mechanism 5. The fresh air mechanism 4, the blower 3, the heating bag 2 and the oven 1 are connected in sequence, and are used to transport the low-temperature fresh air to the heating bag 2 through the blower 3 for heating and then supply it to the oven 1; the oven 1 is connected to the exhaust mechanism 5, and is used to discharge part of the gas from the exhaust mechanism 5. A heat exchanger 6 is also arranged between the blower 3 and the fresh air mechanism 4. The fresh air pipeline 41 of the fresh air mechanism 4 passes through the heat exchanger 6, and the exhaust air pipeline 51 of the exhaust mechanism 5 passes through the heat exchanger 6, so that the low-temperature gas in the fresh air pipeline 41 and the high-temperature gas in the exhaust pipeline 51 are heat-exchanged, so that the low-temperature gas in the fresh air pipeline 41 is heated.
[0014] When the utility model is in use, a tunnel is formed at the lower part of the oven 1, and its function is to allow the material to be processed to pass through the tunnel and dry it while passing through, and the oven 1 can also play a role of heat preservation. The heating bag 2 is connected to the upper part of the oven 1, and the specific position can be flexibly set according to the on-site space. Its function is to provide heat energy for the oven 1, and electric heating, steam heating, thermal oil heating and the like can be adopted. No matter which heating method is adopted, the gas is heated to the required temperature and supplied to the oven 1. The blower 3 provides power for the hot air circulation of the oven 1, so that the hot air in the oven 1 is blown to the surface of the material to be dried by the blower nozzle of the oven 1 in a continuous cycle, so that the material in the tunnel of the oven 1 can be dried. In the hot air circulation, some waste gas will be produced after the material is dried, and these waste gases need to be discharged. The exhaust mechanism 5 is connected to the oven 1 to extract and discharge a part of the hot air in the oven 1. The pipeline of the exhaust mechanism 5 is connected to an independent blower mechanism to discharge the waste gas. As exhaust air is being exhausted, the air pressure in the oven 1 will decrease, so the fresh air is added to the hot air cycle by the fresh air mechanism 4 connected to the blower 3. As an improvement, a heat exchanger 6 is further provided, and both the exhaust air duct 51 and the fresh air duct 41 pass through the heat exchanger 6, so that the high-temperature gas in the exhaust air duct 51 and the low-temperature gas in the fresh air duct 41 can transfer heat at the heat exchanger 6, so that the temperature of the fresh air can be increased and then added to the hot air cycle, so that the heat of the exhaust air can be effectively recovered and energy can be saved.
[0015] As an improved specific implementation method, the exhaust mechanism 5 includes an exhaust inlet 52, the fresh air mechanism 4 includes an air inlet 42, and the heat exchanger 6 is arranged corresponding to the exhaust inlet 52 and the air inlet 42, so that the high-temperature gas and the low-temperature gas enter the exhaust duct 51 and the fresh air duct 41 respectively through the exhaust inlet 52 and the air inlet 42, and heat exchange is directly carried out at the heat exchanger 6.
[0016] like Figure 1 , 2 As shown, the heat exchanger 6 is arranged corresponding to the exhaust inlet 52 and the air inlet 42. The exhaust gas just drawn out from the oven 1 has the highest temperature. Therefore, the exhaust gas and the fresh air in the exhaust duct 51 and the fresh air duct 41 can transfer heat with each other at the beginning of the exhaust, which is more conducive to heat recovery.
[0017] As an improved specific implementation manner, the heating pack 2 is arranged on one side of the oven 1 , and the exhaust inlet 52 is arranged on the other side of the oven 1 .
[0018] like Figure 1 , 2 As shown, the gas in the hot air circulation flows along the tunnel direction of the oven 1 and is dried. The waste gas produced after the material is dried can reach the exhaust inlet 52 along the flow direction, which is beneficial to the effective discharge of the waste gas.
[0019] As an improved specific implementation method, both the fresh air pipeline 41 and the exhaust air pipeline 51 are provided with regulating valves 7 for adjusting the ventilation size.
[0020] like Figure 1 As shown, according to the heat exchange requirements of fresh air and exhaust gas, and the gas flow circulation requirements of hot air circulation, the ventilation flow of the fresh air pipeline 41 and the exhaust air pipeline 51 can be controlled by adjusting the valve 7 to achieve a flexible adjustment effect.
[0021] As an improved specific implementation method, there is a ventilation pipeline between the blower 3 and the heating package 2, and a regulating valve 7 for adjusting the ventilation size is arranged on the ventilation pipeline.
[0022] like Figure 1 , 2 As shown, according to the gas flow circulation requirements of the hot air circulation, the ventilation flow of the ventilation pipeline can be controlled by adjusting the valve 7 to achieve a flexible adjustment effect.
[0023] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.
Claims
1. An energy-saving heating device for a coating machine, comprising an oven (1), a heating bag (2), a blower (3), a fresh air mechanism (4) and an exhaust mechanism (5), wherein the fresh air mechanism (4), the blower (3), the heating bag (2) and the oven (1) are connected in sequence and are used to transport low-temperature fresh air to the heating bag (2) through the blower (3) for heating and then supplying it to the oven (1); the oven (1) is connected to the exhaust mechanism (5) for exhausting part of the gas from the exhaust mechanism (5), and is characterized in that: A heat exchanger (6) is further provided between the blower (3) and the fresh air mechanism (4); the fresh air pipeline (41) of the fresh air mechanism (4) passes through the heat exchanger (6); and the exhaust air pipeline (51) of the exhaust air mechanism (5) passes through the heat exchanger (6), thereby allowing low-temperature gas in the fresh air pipeline (41) and high-temperature gas in the exhaust air pipeline (51) to exchange heat, thereby raising the temperature of the low-temperature gas in the fresh air pipeline (41).
2. The energy-saving heating device for a coating machine according to claim 1, characterized in that: The exhaust mechanism (5) includes an exhaust inlet (52), the fresh air mechanism (4) includes an air inlet (42), and the heat exchanger (6) is arranged corresponding to the exhaust inlet (52) and the air inlet (42), so that when the high-temperature gas and the low-temperature gas enter the exhaust pipeline (51) and the fresh air pipeline (41) respectively through the exhaust inlet (52) and the air inlet (42), heat exchange is directly performed at the heat exchanger (6).
3. The energy-saving heating device for a coating machine according to claim 2, characterized in that: The heating pack (2) is arranged on one side of the oven (1), and the exhaust inlet (52) is arranged on the other side of the oven (1).
4. An energy-saving heating device for a coating machine according to claim 1, 2 or 3, characterized in that: Both the fresh air pipeline (41) and the exhaust air pipeline (51) are provided with regulating valves (7) for adjusting the ventilation level.
5. The energy-saving heating device for a coating machine according to claim 1, 2 or 3, characterized in that: A ventilation pipeline is provided between the blower (3) and the heating bag (2), and a regulating valve (7) for adjusting the ventilation size is provided on the ventilation pipeline.