Rapid heating curing radiation heating return stroke air distribution system for coating production

Abstract

The utility model belongs to the technical field of paint spraying, coating, heating, drying and curing equipment, and particularly relates to a rapid heating, curing and radiation heating return stroke air distribution system for coating production. Comprising a gas distribution channel, one end of the gas distribution channel is sealed and located in a coating workshop, the other end of the gas distribution channel is open and extends out of the coating workshop, the gas distribution channel comprises a plurality of unit ventilation pipes which are sequentially connected, and the bottom end of the gas distribution channel communicates with a plurality of gas distribution pipes; and the other end of each gas distribution pipe is communicated with one gas heat energy generating device. The gas distribution device can independently distribute gas for the gas heat energy generating device, so that paint mist air in a workshop is isolated from combustion-supporting air of the gas heat energy generating device, and equipment damage and potential safety hazards caused by the fact that the paint mist air is sucked into the gas heat energy generating device are avoided; it is guaranteed that clean air is introduced into the gas heat energy generating device, efficient oxidation is achieved, energy conservation and emission reduction are achieved, and the special characteristics of being efficient, energy-saving, economical, safe, environmentally friendly and the like are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of spray painting and coating heating, drying and curing equipment, and particularly relates to a rapid heating and curing radiation heating reverse air distribution system for coating production. Background Art

[0002] At present, the traditional spray painting and curing process in coating workshops is various traditional heat convection drying and curing processes. Such old traditional technologies do not have a reverse air distribution system for spray painting and curing, resulting in the mixed pollution and disturbance of the paint mist-containing air and outdoor air in the coating workshop. At present, such traditional coating curing processes have caused serious environmental protection problems, large energy consumption, long time consumption, and high carbon emissions in the coating production curing process. Thirdly, during the melting, leveling, gelation, and curing processes of the coating process, the hot air convection causes the air in the coating workshop to be disturbed, resulting in certain flow marks and orange peel phenomena on the spray-painted workpieces before the paint film melts. At present, the drying and curing processes for coating production in industries such as ships and offshore engineering, high-speed rails and subways, household appliances and furniture generally use electric energy hot air blowers or burner furnaces to burn natural gas and propane gas to generate flames and flue gases, and then directly or indirectly exchange heat the hot air of the burned flue gases and send it to the coating production workshop or drying tunnel. The hot air convection heating method is used to heat, dry, and cure ship sections, product shells, and components. The defects of the current coating technology are inevitable. There is still a large gap between technical parameters such as anti-corrosion quality, sensory quality, paint film corrosion resistance, and adhesion and the international advanced level. Moreover, the paint mist-containing air in the coating workshop or drying tunnel is easily sucked into the gas thermal energy generating device, which is likely to cause damage to the equipment and pose a large safety hazard. Therefore, it is urgent to design a rapid heating and curing radiation heating reverse air distribution system for coating production to help the safe and efficient operation of gas radiation heating in industrial coating workshops such as ships and offshore engineering. Content of the Utility Model

[0003] Aiming at the problems existing in the above-mentioned prior art, the utility model provides a rapid heating and curing radiation heating reverse air distribution system for coating production, and specifically discloses the following technical solutions:

[0004] A rapid heating and curing radiation heating reverse air distribution system for coating production includes an air distribution channel. One end of the air distribution channel is hermetically arranged and located inside the coating workshop, and the other end is open and extends outside the coating workshop. The air distribution channel includes a plurality of unit ventilation pipes connected in sequence. A plurality of air distribution pipes are communicated with the bottom end of the air distribution channel. The other end of each air distribution pipe is respectively communicated with a gas thermal energy generating device. A fixing mechanism is arranged on the air distribution channel, and the air distribution channel is connected to the roof truss of the coating workshop through the fixing mechanism.

[0005] Furthermore, flanges are fixedly connected to both ends of each unit ventilation pipe, and two adjacent unit ventilation pipes are fixedly connected through flanges and bolts.

[0006] Furthermore, a sealing rubber pad is arranged between two flanges connected by bolts.

[0007] Furthermore, the bolts are expansion anchor bolts.

[0008] Furthermore, the fixing mechanism includes several pairs of through wires and hanging rods, each pair of through wires and hanging rods are respectively fixedly connected to both sides of the air distribution channel, and the top ends of the through wires and hanging rods are fixedly connected to the roof truss of the painting workshop through setscrews.

[0009] Furthermore, the unit ventilation pipe includes an inner support pipe, a heat insulation layer, and an anti-corrosion protection layer arranged in sequence from the inside to the outside.

[0010] Furthermore, the inner support pipe is welded by galvanized steel plates, and the heat insulation layer and the anti-corrosion protection layer are sequentially coated on the outside of the inner support pipe.

[0011] Furthermore, a square protection net is installed at the open end of the air distribution channel.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The rapid heating and curing radiation heating reverse air distribution system for painting production of the present utility model can distribute air for the gas thermal energy generating device alone, thereby isolating the paint mist air in the ship and offshore liquid painting workshop or the powder painting drying oven of subway and high-speed rail from the combustion-supporting air of the gas thermal energy generating device, avoiding equipment damage and potential safety hazards caused by the inhalation of paint mist air into the gas thermal energy generating device, ensuring that the gas thermal energy generating device introduces clean air and realizes energy conservation and emission reduction through efficient oxidation, and having exclusive characteristics such as high efficiency, energy conservation, economy, safety, and environmental protection. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2 It is the front view of the present utility model.

[0016] Figure 3 It is the cross-sectional view of the unit ventilation pipe.

[0017] 1 - Unit ventilation pipe, 11 - Inner support pipe, 12 - Heat insulation layer, 13 - Anti-corrosion protection layer, 2 - Air distribution pipe, 3 - Gas thermal energy generating device, 4 - Flange, 5 - Bolt, 6 - Through wire and hanging rod, 7 - Sealing rubber pad. Detailed Embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Referring to Figures 1-3 , a rapid heating and curing radiation heating reverse air distribution system for coating production, including an air distribution channel. One end of the air distribution channel is sealed and located inside the coating workshop, and the other end is open and extends outside the coating workshop. The air distribution channel includes several unit ventilation pipes 1 connected in sequence. The bottom end of the air distribution channel is communicated with several air distribution pipes 2. The other end of each air distribution pipe 2 is respectively communicated with a gas heat generating device 3. Each gas heat generating device 3 can be individually supplied with gas through the corresponding air distribution pipe 2. A fixing mechanism is provided on the air distribution channel, and the air distribution channel is connected to the roof truss of the coating workshop through the fixing mechanism.

[0020] In this embodiment, each unit ventilation pipe 1 is communicated with an air distribution pipe 2 at the bottom end. In other embodiments, the number and installation position of the air distribution pipes 2 can be selected according to specific circumstances.

[0021] In this embodiment, flanges 4 are fixedly connected to both ends of each unit ventilation pipe 1. Adjacent two unit ventilation pipes 1 are fixedly connected through flanges 4 and bolts 5, which is convenient for assembly and disassembly.

[0022] In this embodiment, the flange 4 adopts a thin steel plate connecting flange.

[0023] In this embodiment, a sealing rubber pad 7 is provided between the two flanges connected by bolts 5 to ensure the connection sealing performance.

[0024] In this embodiment, the bolt 5 adopts an expansion anchor bolt.

[0025] In this embodiment, the fixing mechanism includes several pairs of through wire hangers 6. Each pair of through wire hangers 6 is respectively fixedly connected to both sides of the air distribution channel. The top end of the through wire hanger 6 is fixedly connected to the roof truss of the coating workshop through a top screw clamp.

[0026] In this embodiment, the through wire hanger 6 is a galvanized through wire hanger.

[0027] In this embodiment, the unit ventilation pipe 1 includes an inner support pipe 11, a heat insulation layer 12, and an anti-corrosion protection layer 13 arranged in sequence from the inside to the outside.

[0028] In this embodiment, the inner support pipe 11 is welded by galvanized steel plates, and the thermal insulation layer 12 and the anti-corrosion protection layer 13 are sequentially coated on the outside of the inner support pipe 11. The thermal insulation layer 12 can adopt refractory and heat-insulating materials with a thermal conductivity ≤ 0.045 such as rock wool boards or expanded polystyrene boards; the anti-corrosion protection layer 13 can adopt anti-corrosion protection aluminum foil with a thickness ≥ 0.010 mm, and all interfaces and joints of the flyback air distribution system are sealed with anti-corrosion protection aluminum foil with a thickness ≥ 0.010 mm.

[0029] In this embodiment, a square protective net is installed at the open end of the air distribution channel to prevent foreign objects from entering the air distribution channel and causing blockage of the air distribution channel.

[0030] In this embodiment, a flyback air distribution system usually sets 2 - 6 air distribution pipes to configure outdoor air for a heating unit (including 2 - 6 gas thermal energy generating devices), and forms a flyback relationship with the combustion and heat supply fluid direction of the gas thermal energy generating device 3 of this unit; the flyback air distribution relationship must be established for each single heating unit one by one.

[0031] The working principle of the present utility model is as follows:

[0032] The air outside the workshop enters the air distribution channel from the open end of the air distribution channel, and provides combustion-supporting air for each gas thermal energy generating device 3 through the air distribution pipe 2. The gas thermal energy generating device 3 is connected to the radiation heating in the workshop, and dries and heats the products in the workshop through radiation heating, and finally discharges the combustion exhaust gas to the outside of the workshop through radiation heating. The present utility model can isolate the paint mist air in the workshop from the combustion-supporting air of the gas thermal energy generating device 3, avoid equipment damage and potential safety hazards caused by the paint mist air being inhaled into the gas thermal energy generating device 3, ensure that the gas thermal energy generating device 3 introduces clean air and achieves energy conservation and emission reduction through efficient oxidation, and has exclusive characteristics such as high efficiency, energy conservation, economy, safety and environmental protection.

[0033] The above is only a preferred embodiment of the present utility model, and does not impose any limitation on the technical scope of the present utility model. Therefore, any minor modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still belong to the scope of the technical solution of the present utility model.

Claims

1. A rapid temperature rise curing radiation heating reverse process air distribution system for coating production, characterized in that: It includes a gas distribution channel, one end of which is sealed and located in the paint shop, and the other end is open and extends to the outside of the paint shop. The gas distribution channel includes a plurality of unit ventilation pipes connected in sequence, and the bottom end of the gas distribution channel is connected to a plurality of gas distribution pipes, and the other end of each gas distribution pipe is respectively connected to a gas heat energy generating device. A fixing mechanism is provided on the gas distribution channel, and the gas distribution channel is connected to the roof truss of the paint shop through the fixing mechanism.

2. A coating production rapid temperature rise curing radiation heating reverse process air distribution system according to claim 1, characterized in that: Both ends of each unit ventilation pipe are fixedly connected with flanges, and two adjacent unit ventilation pipes are fixedly connected by flanges and bolts.

3. A coating production rapid temperature rise curing radiation heating reverse process air distribution system according to claim 2, characterized in that: A sealing rubber pad is arranged between two flanges connected by bolts.

4. A coating production rapid temperature rise curing radiation heating reverse process air distribution system according to claim 2, characterized in that: The bolts are expansion anchor bolts.

5. The rapid temperature rise curing radiation heating reverse process air distribution system for coating production according to claim 1 is characterized in that: The fixing mechanism comprises a plurality of pairs of wire hangers, each pair of wire hangers are respectively fixedly connected to the two sides of the gas distribution channel, and the top ends of the wire hangers are fixedly connected to the roof truss of the painting workshop through top wire clamps.

6. The rapid temperature rise curing radiation heating reverse process air distribution system for coating production according to claim 1 is characterized in that: The unit ventilation pipe comprises an inner support pipe, a heat-insulating layer and an anti-corrosion protective layer which are sequentially arranged from the inside to the outside.

7. A coating production rapid temperature rise curing radiation heating reverse process air distribution system according to claim 6, characterized in that: The inner support tube is welded from galvanized steel plates, and the thermal insulation layer and the anti-corrosion protection layer are sequentially coated on the outside of the inner support tube.

8. The rapid temperature rise curing radiation heating reverse process air distribution system for coating production according to claim 1 is characterized in that: A lattice protection net is installed at one open end of the gas distribution channel.

Images