It is made of industrial profiles and is directly driven by the drive motor. It is the key to the stable movement of the whole telescopic mechanism. The door frame is provided with a switch button and a travel switch to automatically control the expansion and contraction of the door

Apart from the door frame, the rest parts are canvas support net, which is the framework for installation and connection of flame-retardant canvas. It is composed of multiple groups of profile skeleton, and the whole relatively independent skeleton is connected together through a scissors type expansion mechanism to form a stable whole

The two canvas support nets are connected by a scissor type telescopic mechanism, whose structural size determines the amount of expansion and contraction. At the same time, a set of scissor type telescopic mechanism is arranged at the upper and lower sides of each side to ensure that the upper and lower sides can achieve expansion and contraction at the same time, and a synchronous motion mechanism is formed between the two through a connecting rod

Industrial flame-retardant PVC canvas is used between the entire grid, which is the "wall panel" that forms a relatively closed operation room and also the "room" that ensures the orderly flow of air. During installation, one piece of industrial canvas is used for every two support nets

The drive part adopts a reduction motor, which is transmitted to multiple long shafts, and then is synchronously transmitted to the driving wheels on both sides by the sprockets at both ends of the long shaft. The whole drive adopts three-level protection for forward and backward: two-way two-level travel protection, and the rail terminal is set with limit stops; There are control boxes on both sides of the door post, which is easy to operate; A running warning light is set on the top of the spray chamber. The reducer adopts K series of Dongfang transmission: helical gear - spiral bevel gear reduce

Low noise and energy-saving centrifugal fan is adopted, which is made of double-sided air inlet, with novel structure, small volume, large air volume and small vibration. The motor can reduce voltage with the help of three-phase voltage regulator to realize stepless speed regulation, and can adapt to places with frequent air volume changes. The forced draft fan base is set on the steel structure platform at the side of the chamber body, and the structure is firm and reliable without obvious vibration; All air supply pipelines are made of δ 1.2mm high-quality galvanized steel plate undercut production, without welding. Ensure that the pipeline is formed without deformation; Install damping or elastic shock absorber at the bottom of the fan, and design noise reduction room to ensure that the system noise is controlled below 85dba

Explosion proof centrifugal fan is selected. The exhaust fan base is made of channel steel, angle steel and industrial profiles welded into a frame. All pipes are made of δ The 1.2mm hot-rolled galvanized plate is made. The noise of the fan is 88DB (a) when it runs empty (without air duct). A noise reduction fan case is set outside the fan, and a spring damper is set under the fan base. After the air duct is connected, the operators can have a good working environment; The exhaust tower is made of galvanized plate and reinforced with wind resistant structure. The size of the exhaust chimney is determined by the air flow speed and the concentration of harmful substances discharged.

The water tank is made of 2mm thick stainless steel plate, 1.5mm thick galvanized steel plate for upper cover plate and flashing plate, and 1.2mm thick galvanized steel plate for side wall plate, rear wall plate, water baffle plate, water collecting tank and guide plate. The surface is sprayed with plastic, which is rust proof and durable.

It is made of stainless steel pipe, and the channel area is made according to the actual situation of the customer

The air-water separator plays a very important role in the non pump water curtain paint booth. When the air-water mixed medium passes through this time, most of the water is separated and falls into the collecting tank, overflows from the overflow tank, and forms a water curtain. Air water separator 1 is made of t1.2 stainless steel plate, which is resistant to corrosion and gas flow erosion. The gap between baffles of gas water separator shall be ≤ 30mm, and shall be folded into a certain diversion angle. The air-water separator 2 is made of stainless steel, which forms a specific angle with the horizontal and air flow direction to further separate the moisture in the air and fall into the water collecting tank.

The water flow plate shall ensure the flatness to ensure that the water curtain is stable and free from flow interruption and turbulence. The water flow plate and water baffle shall be made of stainless steel to ensure their service life. The lower end is a sawtooth structure instead of a general linear structure, which further improves the washing effect; The water film on the water plate is formed by the overflow of the water in the overflow tank above. In order to ensure the uniformity of the water film, the overflow slot is designed into a circular arc shape of Guanghua and inclined inward by 45 ゜, so that the water overflowed from the overflow tank can be uniformly lubricated and will not splash.

The synthetic fiber filter material product vnf-290 (G3) and the bag filter of the filter section of the air supply system can increase the cotton area of the air inlet by 3-4 times with the cloth bag structure. The adoption of this filter form can reduce the wind resistance, increase the dust capacity and reduce the replacement times

The Dutch "arresters" synthetic fiber filter material cc-600g (F5) is selected as the sub high efficiency filter material, which can filter out all particles that can damage the paint quality, and the dust content is 100% removed to ensure that the air flow passing through the paint booth is evenly diffused and forms a laminar flow state, which conforms to the fire classification standards of European din53438-f1 and American ul900-class1.

lighting

The upper and lower rows of lighting devices are set in the spray drying room. The top side lamp group is installed at a 45 º angle, and the arrangement is: 2 × 40W × 2 sides; The waist lamp group is installed in the wall panel at intervals, and the arrangement is: 2 × 40W × 2 lines. All light boxes adopt δ 1.2 the galvanized plate shall be made and sprayed with white paint, which is beautiful and generous, and can prevent the appearance of rust. The lamp tube adopts explosion-proof Philips high-efficiency light source, which is safe, energy-saving and easy to maintain. The ballast adopts the special electronic ballast for the spray booth, so as to ensure that the light intensity of each spray booth is ≥ 800Lux and meet the spraying operation of each end face of the workpiece. The light box and the wall panel are connected by small angle iron, and the light box is equipped with a detachable frame for easy maintenance.

Safety alarm system

To ensure safe use, the chamber is equipped with drb-105 dual controller dual detector combustible gas concentration detection device. When the solvent concentration reaches 25% of the explosion limit (which can be freely set), the alarm will be given immediately; Telescopic room operation warning and fault alarm shall be set at the top of the spray chamber

Electronic control system

The components of the electronic control system of the non pump water curtain painting room shall be well-known brands such as Omron, Siemens and Schneider. The main circuit shall be provided with protection functions such as overcurrent, overload, short circuit and short circuit to ensure high reliability and low failure rate of the electrical control system. The line design is reasonable, with short-circuit protection, overload protection and other functions and reliable grounding protection system. PLC programming can control the whole equipment. The distribution control cabinet in the system is sprayed with plastic on the surface, which is beautiful and generous. In order to ensure the sequence and safety of the work, the interlocking of the lower workpiece to the painting is adopted. Any door of the spray booth shall be equipped with operation warning light and emergency stop button, and the door shall be interlocked with the spray gun. When the warning light is on during painting, the painting system will automatically stop if any door is opened intentionally or unintentionally. Emergency stop switch shall be set in the control cabinet and painting room.