The water paint drying system
Technical field
The utility model relates to a kind of water paint drying system.
Background technology
For solvent-borne type finish paint coating process, face linging colored paint and coating varnish are solvent-borne type paint, only need normal temperature levelling number minute after the base coat spraying, just can the direct spraying coating varnish.And be coated with in the technique at the water-based lacquer painting, because the difficult volatility of water, need to before the coating hood lac varnish, the moisture in the water-borne base coat fully be evaporated the mode by heat drying, just can carry out the spraying of lower road coating varnish, the time can produce the bubble disadvantage otherwise face is coated with oven dry.
Conventional water paint drying system has generally comprised drying chamber and strong cold house.Wherein, be connected with the circulating-heating case on the drying chamber, the circulating-heating case is provided with air intake, set gradually heat exchanging chamber, filter, wind pushing cavity along air-flow direction in the circulating-heating case, be provided with combustion chamber and fin in the heat exchanging chamber, be provided with circulating fan in the wind pushing cavity, wind pushing cavity is sent to high temperature air in the drying chamber by ajutage, air in drying chamber after the heat exchange is back to again heating in the heat exchanging chamber of circulating heater again, also be communicated with the waste discharge pipeline on the drying chamber, off-air is via waste discharge pipeline high altitude discharge.Be connected with strong cold supply and exhaust device in the strong cold house, strong cold supply and exhaust device is constantly given in the strong cold house and is sent into cold wind.Workpiece dries up through high-temperature hot-air in drying chamber first, lowers the temperature in strong cold house subsequently, descends one painting process after the work-piece cools again.
Be coated with in the technique at the water-based lacquer painting, there is following shortcoming in conventional water paint drying system: 1) two chamber bodies of needs have also increased the complex process degree when taking too much factory building space; 2) use of water paint has humidity requirement, if humidity is too high, can affect coating quality, and conventional drying chamber does not arrange corresponding dehydrating unit for air humidity; 3) although high-temperature hot-air dries up to be done soon, easily produce water stain spot and thermal deformation, affect the coating quality of workpiece; 4) first high temperature is cold by force again, expends the too much energy in the whole process and can cause energy waste, has increased production cost.
The utility model content
The technical problems to be solved in the utility model provides a kind of water paint drying system, but the logical simplification of flowsheet of this system, and saving equipment takes up an area, and makes things convenient for accurate temperature controlling and damping, guarantees coating quality, reduces energy resource consumption.
For solving the problems of the technologies described above, the circulating-heating case that water paint drying system of the present utility model comprises drying chamber and is communicated with it, offer circulating-heating case air intake on the circulating-heating case, its design feature is that this system also comprises the dehumidifying heating cabinet, the dehumidifying heating cabinet is provided with dehumidifying heating cabinet air intake and dehumidifying heating cabinet air outlet slit, dehumidifying heating cabinet air outlet slit is communicated with circulating-heating case air intake, is provided with heater and dehydrating unit in the dehumidifying heating cabinet.
Described heater comprises combustion chamber and the fin that is interconnected, and offers the fuel inlet that is communicated with the combustion chamber and the useless exhanst gas outlet that is communicated with fin on the dehumidifying heating cabinet.
Described dehydrating unit is surface cooler, is connected with on the surface cooler to be located at the outer water cooled refrigeration unit of dehumidifying heating cabinet.
On inherent its air intake of described dehumidifying heating cabinet fresh air filter is installed.
Inherent its air outlet slit end of described dehumidifying heating cabinet is equipped with the hot-air filter.
Described fresh air filter is panel air filter.
Described hot-air filter is pocket type air filter.
The beneficial effects of the utility model are: save strong cold technique, both reduced the complex process degree, reduced again the floor space of equipment; The air that is arranged so that of dehumidifying heating cabinet dehumidified before entering the circulating-heating case and preheats, and had regulated air humidity, had guaranteed drying effect, in addition, had increased and preheated function, so that for the control of temperature more accurately and saved energy resource consumption; Adopt the heating arrangement of combustion chamber and fin, simple in structure, heat exchange is abundant, and air heat is effective and with low cost; The condensation function of surface cooler is adopted in dehumidifying, cooperates with the water cooled refrigeration unit, and effect on moisture extraction is good, and helps accurate temperature controlling; In the dehumidifying heating cabinet multi-layer filtrating equipment is set, so that air cleanliness is higher, painting effect is better; The air inlet place adopts plate-type filtering, and the place, gas outlet adopts bag type filtering, and effective, cost is low.The utility model is simple in structure, and deft design has been simplified technological process, has saved the equipment occupation of land, has made things convenient for accurate temperature controlling and damping, has guaranteed coating quality, has reduced energy resource consumption.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the structural representation of former drying system;
Fig. 2 is structural representation of the present utility model.
The specific embodiment
Be convenient statement, arrow A represents that fresh air flows in the accompanying drawing; Arrow B represents that fuel oil or combustion gas flow into: arrow C represents useless flue gas discharge: arrow D represents the off-air discharge.
With reference to Fig. 1, original drying system includes drying chamber 1 and strong cold house 13.Wherein, as shown in Figure 1, be connected with circulating-heating case 2 on the drying chamber 1, circulating-heating case 2 is provided with circulating-heating case air intake 20, circulating-heating case 2 is interior to set gradually heat exchanging chamber along air-flow direction, filter 9, wind pushing cavity, be provided with combustion chamber 4 and fin 5 in the heat exchanging chamber, be provided with circulating fan 10 in the wind pushing cavity, wind pushing cavity is sent to high temperature air in the drying chamber 1 by ajutage, air after drying chamber 1 interior heat exchange is back to again heating in the heat exchanging chamber of circulating-heating case 2 again, also be communicated with waste discharge pipeline 11 on the drying chamber 1, waste discharge blower fan 12 is installed on the waste discharge pipeline 11, off-air is via waste discharge pipeline 11 high altitude discharges.Be connected with strong cold supply and exhaust device 14 in the strong cold house 13, strong cold supply and exhaust device 14 is constantly given in the strong cold house 13 and is sent into cold wind.Workpiece dries up through high-temperature hot-air in that drying chamber 1 is interior first, in strong cold house's 13 interior coolings, descends one painting process after the work-piece cools subsequently again.
With reference to Fig. 2, water paint drying system of the present utility model comprises drying chamber 1 and the circulating-heating case 2 that is communicated with drying chamber 1, offer circulating-heating case air intake 20 on the circulating-heating case 2, wherein, the internal structure of circulating-heating case 2 is identical with structure among Fig. 1, is prior art, and the structure of drying chamber 1 is also identical with structure among Fig. 1, be prior art also, all repeat no more at this.As shown in Figure 2, water paint drying system of the present utility model also comprises dehumidifying heating cabinet 3, dehumidifying heating cabinet 3 is provided with dehumidifying heating cabinet air intake 30 and dehumidifying heating cabinet air outlet slit 31, dehumidifying heating cabinet air outlet slit 31 is communicated with circulating-heating case air intake 20, is provided with heater and dehydrating unit in the dehumidifying heating cabinet 3.
See figures.1.and.2, drying system of the present utility model has been save original strong cold technique, thereby can reduce the complex process degree, can reduce again the floor space of equipment.The air that is arranged so that of dehumidifying heating cabinet 3 dehumidified first before entering the circulating-heating case and preheats.Wherein adjusting air humidity is convenient in the design of dehumidification function, guarantees drying effect.The design that preheats function is for so that enter the air themperature in the circulating-heating case 2 and the air themperature that refluxes from drying chamber 1 is consistent, so that accurate temperature controlling and can energy savings consumption.
With reference to Fig. 2, the effect of dehumidifying heating cabinet 3 is that air is dehumidified and preheats, heater in it comprises combustion chamber 4 and the fin 5 that is interconnected, and offers the fuel inlet that is communicated with combustion chamber 4 and the useless exhanst gas outlet that is communicated with fin 5 on the dehumidifying heating cabinet 3.Wherein, combustion chamber 4 and fin 5 adopt and the interior same structure of circulating-heating case.Combustion gas or fuel oil enter combustion chamber 4 internal combustion, and heat flows in the fin 5 and by fin 5 and carries out abundant heat exchange, and the useless flue gas after the fuel combustion is discharged via useless exhanst gas outlet.Dehydrating unit in the dehumidifying heating cabinet 3 is surface cooler 6, is connected with the water cooled refrigeration unit 7 that is located at outside the dehumidifying heating cabinet 3 on the surface cooler 6.Surface cooler 6 carries out air dewetting by condensation, thereby reduces air humidity, avoids the too high coating quality that affects of humidity.
As shown in Figure 2, on dehumidifying heating cabinet 3 inherent its air intakes fresh air filter 8 is installed.This fresh air filter 8 is preferably panel air filter.Dehumidifying heating cabinet 3 inherent its air outlet slit ends are equipped with hot-air filter 9.This hot-air filter 9 is preferably pocket type air filter.Arranging of each air cleaner filtered layer by layer to air, thereby guaranteed air cleanliness, and then guarantees coating quality.