Degreasing spraying system for electrophoresis production line
By designing a degreasing spraying system on the electrophoretic production line, using high-temperature exhaust gas to preheat the degreasing solvent and combining with a heat exchanger, the problem of high energy consumption is solved, and an efficient degreasing process and energy-saving effect is achieved.
Patent Information
- Application Number
- CN202422192608.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-06
AI Technical Summary
In the prior art, the electrophoretic production line consumes high energy during the degreasing process and the heat from the high-temperature exhaust gas cannot be effectively utilized, resulting in energy waste.
A degreasing spraying system is designed to preheat degreasing solvents using the high-temperature exhaust gas discharged from the drying furnace, and combine it with a steam heat exchanger to achieve heat utilization of the high-temperature exhaust gas. The preheated solvent is then sprayed out through the nozzle for degreasing, combining the conveying chain and the nozzle design to ensure no dead angle spraying.
It realizes efficient utilization of high-temperature exhaust heat, reduces energy consumption, improves degreasing efficiency and achieves energy-saving effects.
Smart Images
Figure CN223159710U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a degreasing spray system for an electrophoresis production line, belonging to the technical field of electrophoresis equipment. Background Art
[0002] Electrophoresis is one of the most effective methods for coating metal workpieces. Since oil stains will adhere to the surface of metal parts during the processing, it is necessary to clean the surface before electrophoresis to strip the oil stains on the metal parts and increase the adhesion of the coating. Currently, when degreasing, a degreasing solvent heated to about 60°C to 70°C is sprayed on it. Currently, steam heating is usually used to heat the degreasing solvent, which consumes a lot of energy. After electrophoresis, the metal parts need to enter a drying furnace for drying. During the drying process, a large amount of high-temperature waste gas is generated. The high-temperature waste gas needs to be cooled by a water cooling system composed of a condenser, a cooling tower, etc., and its heat cannot be effectively utilized, resulting in waste and loss of energy. Summary of the Invention
[0003] The technical problem to be solved by the utility model is to provide a degreasing spray system for an electrophoresis production line, which can better utilize the heat of high-temperature waste gas and has better energy-saving effects, and can solve the deficiencies of the prior art.
[0004] The technical solution of the utility model is: a degreasing spray system for an electrophoresis production line, including a spray chamber with a spray head inside, a steam heat exchanger, and a liquid storage tank storing a degreasing solvent. The degreasing solvent in the liquid storage tank is heated by the steam heat exchanger and then sprayed out through the spray head in the spray chamber. It includes a heat exchanger connected to the discharge end of the drying furnace. The heat exchanger has an air inlet end, an air outlet end, a liquid inlet end, and a liquid discharge end. The air inlet end of the heat exchanger is connected to the discharge end of the drying furnace, the liquid inlet end is connected to the liquid storage tank, and the liquid outlet end is connected to the steam heat exchanger. The degreasing solvent in the liquid storage tank is heated by the heat exchanger and the steam heat exchanger in sequence and then sprayed out through the spray head in the spray chamber.
[0005] Further, it includes a bypass pipe. One end of the bypass pipe is connected to the spray head of the spray chamber, and the other end is connected to the pipeline between the heat exchanger and the steam heat exchanger. A temperature sensor is provided at the liquid discharge end of the heat exchanger. Valves are provided on the bypass pipe and the pipeline between the bypass pipe and the steam heat exchanger.
[0006] Further, it includes a filter. The bottom of the spray chamber is conical, and a liquid discharge port is provided at the lowest point. The liquid discharge port is connected to the liquid inlet end of the filter, and the liquid outlet end of the filter is connected to the liquid storage tank.
[0007] Further included is a conveyor chain passing through the spray chamber. Hanging rings rotatably connected thereto are distributed on the conveyor chain. The workpiece is hung on the hanging rings through a hanging rack and is conveyed from one end of the spray chamber to the other end along with the conveyor chain. The nozzles are divided into several groups and are arranged on the inner walls on both sides of the spray chamber. The degreasing solvent is obliquely sprayed onto the workpiece through the nozzles, driving the hanging rack to rotate.
[0008] By implementing the present utility model, the degreasing solvent in the liquid storage tank is first preheated through heat exchange with the high-temperature tail gas discharged from the drying furnace in the heat exchanger. When the high-temperature tail gas discharged from the drying furnace enters the heat exchanger, it exchanges heat with the degreasing solvent. After the tail gas is cooled, it is purified by a purification device and then discharged, enabling the efficient utilization of the heat of the high-temperature tail gas. The preheated degreasing solvent enters the steam heat exchanger for further heat exchange to reach the required temperature and then is sprayed out through the nozzles in the spray chamber. Brief Description of the Drawings
[0009] Figure 1 is the first three-dimensional view of the present utility model;
[0010] Figure 2 is the second three-dimensional view of the present utility model;
[0011] Figure 3 is the top view of the present utility model.
[0012] As shown in the figure: nozzle 1; spray chamber 2; steam heat exchanger 3; liquid storage tank 4; heat exchanger 5; bypass pipe 6; valves 7, 7A; filter 8; conveyor chain 9; hanging ring 10; hanging rack 11. Detailed Description of the Embodiment
[0013] An embodiment of the present utility model: As Figures 1 to 3 shown, a degreasing spray system for an electrophoresis production line includes a spray chamber 2 with a nozzle 1 inside, a steam heat exchanger 3, a liquid storage tank 4 storing a degreasing solvent, and a heat exchanger 5. The heat exchanger 5 has an air inlet end, an air outlet end, a liquid inlet end, and a liquid outlet end. The air inlet end of the heat exchanger 5 is connected to the discharge end of the drying furnace, the liquid inlet end is connected to the liquid storage tank 4, and the liquid outlet end is connected to the steam heat exchanger 3. During operation, the degreasing solvent in the liquid storage tank 4 is first preheated through heat exchange with the high-temperature tail gas discharged from the drying furnace in the heat exchanger 5. When the high-temperature tail gas discharged from the drying furnace enters the heat exchanger 5, it exchanges heat with the degreasing solvent. After the tail gas is cooled, it is purified by a purification device and then discharged, enabling the efficient utilization of the heat of the high-temperature tail gas. The preheated degreasing solvent enters the steam heat exchanger 3 for further heat exchange to reach the required temperature and then is sprayed out through the nozzle 1 in the spray chamber 2 onto the workpiece to degrease it.
[0014] As a preference, it includes a bypass pipe 6. One end of the bypass pipe 6 is connected to the nozzle 1 of the spray chamber 2, and the other end is connected to the pipeline between the heat exchanger 5 and the steam heat exchanger 3. A temperature sensor is provided at the liquid discharge end of the heat exchanger 5. Valves 7 and 7A are respectively provided on the bypass pipe 6, the pipeline between the steam heat exchanger 3 and the bypass pipe 6. The temperature sensor senses the degreasing solvent preheated by the heat exchanger 5. If the temperature reaches the temperature required for degreasing, the valve 7A is opened and the valve 7 is closed. The degreasing solvent does not need to be heated up by the steam heat exchanger 3 anymore and is directly sprayed from the nozzle 1 onto the workpiece through the bypass pipe 6 for spray degreasing; if the required temperature is not reached, the valve 7A is closed and the valve 7 is opened. The degreasing solvent is reheated to the required temperature through the steam heat exchanger 3 and then sprayed from the nozzle 1 onto the workpiece for spray degreasing. It is rationally utilized according to actual needs to save energy.
[0015] As a preference, it includes a filter 8. The bottom of the spray chamber 2 is conical, and a liquid discharge port is provided at the lowest point. The liquid discharge port is connected to the liquid inlet end of the filter 8, and the liquid outlet end of the filter 8 is connected to the storage tank 4. The degreasing solvent after spraying is filtered by the filter 8 and then returns to the storage tank 4 for recycling. The bottom of the spray chamber 2 is conical, so that the degreasing solvent after spraying can be discharged smoothly and will not accumulate in the spray chamber 2.
[0016] As a preference, it includes a conveyor chain 9 passing through the spray chamber 2. Hanging rings 10 rotatably connected thereto are distributed on the conveyor chain 9. The workpiece is hung on the hanging rings 10 through a hanging rack 11 and is conveyed from one end of the spray chamber 2 to the other end along with the conveyor chain 9. As Figure 3 shown, the nozzles 1 are divided into several groups and are provided on the inner walls on both sides of the spray chamber 2. The degreasing solvent is obliquely sprayed onto the workpiece through the nozzles 1. The spraying directions of the nozzles 1 on the inner walls on both sides are opposite, and the spraying directions of the front and rear nozzles 1 are also opposite. When the workpiece enters the spray chamber 2, it rotates clockwise in the front section and counterclockwise in the rear section under the action of the spraying force of the degreasing solvent. Of course, it can also rotate counterclockwise in the front section and clockwise in the rear section, or change the rotation direction once every certain conveying distance, but at least the rotation direction needs to be changed once to achieve the effect of spray degreasing the workpiece without dead angles.
Claims
1. A degreasing spray system for an electrophoresis production line, comprising a spray chamber with a nozzle inside, a steam heat exchanger, and a liquid storage tank containing a degreasing solvent. The degreasing solvent in the liquid storage tank is heated by the steam heat exchanger and then sprayed out through the nozzle in the spray chamber. It is characterized in that: It includes a heat exchanger connected to the discharge end of a drying furnace. The heat exchanger has an air inlet end, an air outlet end, a liquid inlet end, and a liquid discharge end. The air inlet end of the heat exchanger is connected to the discharge end of the drying furnace, the liquid inlet end is connected to a liquid storage tank, and the liquid outlet end is connected to a steam heat exchanger. The degreasing solvent in the liquid storage tank is sequentially heated by the heat exchanger and the steam heat exchanger and then sprayed out through the nozzles in the spraying chamber.
2. The degreasing spray system for an electrophoresis production line according to claim 1, wherein: It includes a bypass pipe. One end of the bypass pipe is connected to the nozzles of the spraying chamber, and the other end is connected to the pipeline between the heat exchanger and the steam heat exchanger. A temperature sensor is provided at the liquid discharge end of the heat exchanger, and valves are provided on the bypass pipe and the pipeline between the bypass pipe and the steam heat exchanger.
3. The degreasing spray system for an electrophoresis production line according to claim 1 or 2, characterized in that: It includes a filter. The bottom of the spraying chamber is conical, and a liquid discharge port is provided at the lowest point. The liquid discharge port is connected to the liquid inlet end of the filter, and the liquid outlet end of the filter is connected to the liquid storage tank.
4. The degreasing spray system for an electrophoresis production line according to claim 3, wherein: It includes a transmission chain passing through the spraying chamber. Hanging rings rotatably connected to the transmission chain are distributed on the transmission chain. The workpieces are hung on the hanging rings through hanging brackets and are conveyed from one end of the spraying chamber to the other end along with the transmission chain. The nozzles are divided into several groups and are provided on the inner walls on both sides of the spraying chamber. The degreasing solvent is sprayed obliquely onto the workpieces through the nozzles, driving the hanging brackets to rotate.