Energy-saving environment-friendly electrophoresis production line

Abstract

The utility model discloses an energy-saving and environment-friendly electrophoresis production line which comprises a degreasing device, a drying furnace, a heat exchanger and a liquid storage tank for storing a degreasing solvent, and the heat exchanger is provided with an air inlet end, an air outlet end, a liquid inlet end and a liquid outlet end. The discharge end of the drying furnace is connected with the air inlet end of the heat exchanger, the exhaust end of the heat exchanger is connected with the purification device, the liquid storage tank is connected with the liquid inlet end of the heat exchanger, and the liquid discharge end of the heat exchanger is connected with the degreasing device. The utility model provides the energy-saving and environment-friendly electrophoresis production line which can better utilize the heat of high-temperature tail gas and has a better energy-saving effect.

Description

Technical Field

[0001] The utility model relates to an energy-saving and environment-friendly 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. The metal workpieces need to go through processes such as degreasing, electrophoresis, and drying. When degreasing, a degreasing solvent heated to about 60°C needs to be used for impregnation or spraying. Currently, steam heating is usually used to heat the degreasing solvent, which consumes a lot of energy. The drying furnace for drying metal workpieces usually uses hot air generated by an incinerator to convect inside the drying furnace. A large amount of high-temperature tail gas will be generated during the drying process and needs to be cooled by a water cooling system composed of a condenser, a cooling tower, etc. The 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 an energy-saving and environment-friendly electrophoresis production line, which can better utilize the heat of high-temperature tail gas and has better energy-saving effects, and can solve the deficiencies of the existing technology.

[0004] The technical solution of the utility model is: an energy-saving and environment-friendly electrophoresis production line, including a degreasing device and a drying furnace, including a heat exchanger and a liquid storage tank storing a degreasing solvent. The heat exchanger has an air inlet end, an air outlet end, a liquid inlet end, and a liquid outlet end. The discharge end of the drying furnace is connected to the air inlet end of the heat exchanger, the air outlet end of the heat exchanger is connected to a purification device, the liquid storage tank is connected to the liquid inlet end of the heat exchanger, and the liquid outlet end of the heat exchanger is connected to the degreasing device.

[0005] Further, the heat exchanger is located above the drying furnace.

[0006] Further, the drying furnace is in a bridge shape with both ends low and the middle high. The two ends of the drying furnace are respectively an inlet end and an outlet end.

[0007] Further, the heat exchanger includes a housing and several heat exchange modules. The housing has the air inlet end and the air outlet end. The heat exchange modules are detachably installed in the housing and include heat exchange coils with an inlet and an outlet. The inlet of the heat exchange coil is connected to a liquid inlet pipe, and the outlet of the heat exchange coil is connected to a liquid outlet pipe. The liquid inlet pipe is connected to the liquid storage tank, and the liquid outlet pipe is connected to the degreasing device.

[0008] Further, the heat exchange modules are slidably connected to the housing, and the heat exchange coils of the heat exchange modules are flange-connected to the liquid outlet pipe and the liquid inlet pipe.

[0009] Further, a filter screen is provided at the air inlet end of the housing.

[0010] By implementing the present utility model, the degreasing solvent in the liquid storage tank enters the degreasing device after passing through 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 temperature of the degreasing solvent rises, it enters the degreasing device. After the tail gas is cooled, it is purified by the purification device and then discharged, enabling the efficient utilization of the heat of the high-temperature tail gas and achieving a better energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Stereoscopic view of the present utility model;

[0012] Figure 2 Schematic diagram of the heat exchanger.

[0013] Shown in the figure: degreasing device 1; drying furnace 2; heat exchanger 3; liquid storage tank 4; purification device 5; support 6; housing 7; heat exchange module 8; heat exchange coil 9; liquid inlet pipe 10; liquid outlet pipe 11; filter screen 12. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] Embodiment of the present utility model: As Figures 1 to 2 shown, an energy-saving and environment-friendly electrophoresis production line includes a degreasing device 1, a drying furnace 2, a heat exchanger 3, and a liquid storage tank 4 storing a degreasing solvent. The heat exchanger 3 has an air inlet end, an exhaust end, a liquid inlet end, and a liquid discharge end. The discharge end of the drying furnace 2 is connected to the air inlet end of the heat exchanger 3, and a purification device 5 is connected to the exhaust end of the heat exchanger 3. The liquid storage tank 4 is connected to the liquid inlet end of the heat exchanger 3, and the liquid discharge end of the heat exchanger 3 is connected to the degreasing device 1. During operation, the degreasing solvent in the liquid storage tank 4 enters the degreasing device 1 after passing through the heat exchanger 3. When the high-temperature tail gas discharged from the drying furnace 2 enters the heat exchanger 3, it exchanges heat with the degreasing solvent. After the degreasing solvent is preheated and its temperature rises, it enters the degreasing device 1. The degreasing device 1 can be a degreasing tank provided with a heating device, and the heating device further heats the preheated degreasing solvent to 60°C to 70°C, enabling the efficient utilization of the heat of the high-temperature tail gas and achieving an energy-saving effect. After the tail gas is cooled, it is purified by the purification device 5 and then discharged.

[0015] As a preference, a support 6 is provided beside the drying furnace 2, and the heat exchanger 3 and the degreasing device 1 are arranged on the support 6, so that the heat exchanger 3 is located above the drying furnace 2. The tail gas discharged from the drying furnace 2 rises and directly enters the heat exchanger 3 to exchange heat with the degreasing solvent, reducing heat loss and facilitating the improvement of the heat exchange effect.

[0016] As a preference, the drying furnace 2 is in a bridge shape with both ends low and the middle high. The two ends of the drying furnace 2 are respectively an inlet end and an outlet end, and the positions of the inlet end and the outlet end are lower. The hot air temperature in the drying furnace 2 is relatively high, so there is an upward trend, thereby reducing the heat loss from the feed inlet 1 and the discharge outlet 2 and achieving an energy-saving effect.

[0017] As an optimization, the heat exchanger 3 includes a housing 7 and several heat exchange modules 8. The housing 7 has an air inlet end and an exhaust end. The heat exchange modules 8 are detachably installed in the housing 7. Specifically, an installation opening for the heat exchange modules 8 to enter is provided on the side wall of the housing 7, and the heat exchange modules 8 are slidably connected in and out of the installation opening. The several heat exchange modules 8 are distributed in a direction parallel to the cross-section of the housing 7. The heat exchange module 8 includes a heat exchange coil 9 having an inlet and an outlet. The inlet of the heat exchange coil 9 is connected to a liquid inlet pipe 10, and the outlet of the heat exchange coil 9 is connected to a liquid outlet pipe 11. The liquid inlet pipe 10, the liquid outlet pipe 11 and the heat exchange coil 9 are connected by flanges, which facilitates the disassembly and assembly of the heat exchange module 8 with the liquid inlet pipe 10 and the liquid outlet pipe 11. The liquid inlet pipe 10 is connected to the liquid storage tank 4, and the liquid outlet pipe 11 is connected to the degreasing device 1. The heat exchange module 8 can perform heat exchange with the high-temperature tail gas over a large area, and at the same time, it is convenient for disassembly, assembly and cleaning.

[0018] As an optimization, a filter screen 12 is provided at the air inlet end of the housing 7. The filter screen 12 initially filters the tail gas entering the heat exchanger 3, reducing the attachment of oil components, particles, etc. in the tail gas to the heat exchange module 8 and affecting the heat exchange efficiency.

Claims

1. An energy-saving and environment-friendly electrophoresis production line, comprising a degreasing device and a drying furnace, characterized in that: It includes a heat exchanger and a liquid storage tank storing a degreasing solvent. The heat exchanger has an air inlet end, an exhaust end, a liquid inlet end, and a liquid discharge end. The discharge end of the drying furnace is connected to the air inlet end of the heat exchanger, and the exhaust end of the heat exchanger is connected to a purification device. The liquid storage tank is connected to the liquid inlet end of the heat exchanger, and the liquid discharge end of the heat exchanger is connected to the degreasing device.

2. The energy-saving and environment-friendly electrophoresis production line according to claim 1 is characterized in that: The heat exchanger is located above the drying furnace.

3. The energy-saving and environment-friendly electrophoresis production line according to claim 1 or 2, characterized in that: The drying furnace is in the shape of a bridge with low ends and a high middle, and the two ends of the drying furnace are respectively an inlet end and an outlet end.

4. The energy-saving and environment-friendly electrophoresis production line according to claim 1 is characterized in that: The heat exchanger includes a shell and several heat exchange modules. The shell has an air inlet end and an exhaust end. The heat exchange module is detachably installed in the shell and includes a heat exchange coil with an inlet and an outlet. The inlet of the heat exchange coil is connected to a liquid inlet pipe, and the outlet of the heat exchange coil is connected to a liquid outlet pipe. The liquid inlet pipe is connected to a liquid storage tank, and the liquid outlet pipe is connected to a degreasing device.

5. The energy-saving and environment-friendly electrophoresis production line according to claim 4 is characterized in that: The heat exchange module is slidably connected to the shell, and the heat exchange coil of the heat exchange module is flange-connected with the liquid outlet pipe and the liquid inlet pipe.

6. The energy-saving and environment-friendly electrophoresis production line according to claim 4 or 5, characterized in that: A filter screen is provided at the air inlet end of the shell.

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