Water-curtain cameras are often used in car painting organizations. They represent one of the most advanced options for creating a coating for large-sized products, such as car bodies, their parts, furniture, etc. Their design as a whole is a room made of of stainless steel with ventilation of the supply and exhaust type, which runs on electric motors. The main working part is a heating element, a heating box up to required temperature and maintaining the level of heat during work. Lighting also plays an important role, because it should create an even, intense light space without shadows.

Paint spray booths

What is the difference between painting chambers with a water curtain, as well as their advantage over traditional devices? In specially the conditions created a mist of paint is formed, which then settles to the surface. But if in conventional versions there is a danger that toxic substances or vapors will still leave the room, then in such devices they are retained with the help of water. In addition, the liquid binds volatile essential substances that are present in such a chamber. Of course, this type of filtration is not yet a guarantee of the final disposal of harmful emissions, but still a significant reduction in their number.

Outdoor painting booths

There are also spray booths operating in a closed cycle of air flows; in this case, the air moves in a circle and is returned for reuse. And if it is not very well cleaned before starting a new process, then small droplets of dye will get into the room, which polymerize at the same time. This can deteriorate the properties of the enamel, however, the curtain of water retains these residues.

Spray booths with water curtain: stages of work

As already stated, given view cameras are similar to traditional devices. Air flows from the atmosphere to limited space and the suction is based on the fan operation. The air flow passes through many filters, and each of them performs a specific purification process. The quality of processing depends on the size of the holes in the filter material.

When the dyeing process begins, the air is heated with the help of special heating elements. The temperature in the chamber rises. There are exit holes at the bottom of the device. They can be in different places. Through them, the air flow leaves the workspace, which is done with the help of fans. A water curtain is placed directly in front of the main line, which removes the exhaust atmosphere from the chamber. Thus, before leaving the box, the air crosses thin wall from water, which retains dense particles - they settle in the form of a suspension.

Actually, this design is a water filter. There are other possibilities, when the air for cleaning is not passed through the wall of jets, but through a special container into which water is poured. In this case, dense particles accumulate at the bottom, which then form condensation. In order for all harmful substances to precipitate faster, a reagent is added to such a container, which speeds up the processing processes.

The most advanced paint booths of this type have several cleaning levels. The first of them is the passage of air through a continuous water curtain. This creates a wall of water, and its speed of movement is always uniform. The second level provides better cleaning air masses from particles of dyes (internal cleaning). Here there is a complete release from impurities. The third level is the completion of the purification process, which can be achieved through charcoal filters or other types of dry filtration. At this stage, all paint particles disappear. Therefore, the fan will be protected from colorant residues.

These are the main stages of operation of such cameras. This system air purification in paint booths with a water curtain helps to reduce toxicity to a minimum, and therefore the use of this type of equipment is considered mandatory in those industries where the use of liquid paints and varnishes is necessary.

Spray booth with water curtain »> An excellent business solution is to paint cars at home. But in order to be able to paint cars, there is little experience and equipment for painting, it is also necessary to have a room in which the painting of vehicles will be carried out. In organizations that are engaged in painting cars, they have long been doing paintwork in a booth with a water curtain. It is no secret that such a device can be made with your own hands, only with some effort and spending a small amount of money to buy some equipment. You can buy a ready-made one, only its cost will be very high, and not everyone is ready to invest a large amount. In order to make a device with a water curtain with your own hands, you will also need some knowledge.

The spray booth with a water curtain is an enclosed space that is made of stainless steel and has supply and exhaust ventilation. Such ventilation is created using electric motors. The main part of the device is a heating heating element, which helps to heat the room to the required temperature and maintain it during painting works... The camera also includes lighting, which must be evenly distributed over the entire area and have a sufficient luminous flux. It is best to place them not only on the ceiling of the room, but also along the side walls. The device also includes equipment for painting work, and other auxiliary tools.

Layout of the painting booth

Knowing what the spray booth consists of, it is necessary to decide on the location, where the arrangement will be carried out, and to make a project according to the location of the main structural elements... A garage can serve as an excellent location for the construction of a device, or build a new extension, which will take more time and, accordingly, finances. To make a device with your own hands, you will need structural elements from which it will be based, heating and ventilation, filtration and lighting systems.

Spray booth diagram with water curtain

Making a painting chamber

Having made the layout, it is necessary to carry out everything technical calculations, and start installation work.
First of all, a new room is built or a frame is assembled inside the garage. Overall dimensions should be: length 10 meters, width 8 meters, height 3.5 meters. The spray booth is respectively 4 meters wide and 6 meters long.

1. 1. Gate installation.
      It is best to use a gate that is insulated, so that there is no suction and loss of warm air, the outside is sheathed with corrugated board. At the point of contact of the gate, it is insulated with a special adhesive tape. Places with cracks must be covered with polyurethane foam.
   2. Floor construction. The base of the floor is made of concrete, inside of which a hole is made, and a metal pipe with a diameter of 150 mm is brought out to the street for air outflow. A metal grate is laid on the floor over the entire surface of the room to a height of 15-20 cm.
   3. Walls. The walls are sheathed with corrugated board, and inside they are insulated, you can make a sandwich panel.
   4. Air exchange system. Components: two electric motors and metal pipes diameters of 100 mm and 150 mm, respectively. For supply ventilation an electric motor with a power of 5 kW is used, for an exhaust one at least 7 kW.
   5. Ceiling. It is made of corrugated board, with insulation. Mounted in the ceiling metal carcass for air flow. Electric heater that will supply warm air into the room, installed on the street.

1. Air cleaning. It is carried out with the help of filters and has three levels of cleaning.
   • Level 1. A frontal water curtain is created, which is carried out by flowing down uniform streams of water;
   • Level 2. Cleaning the air inside the device. Promotes filtration and air purification from paint waste;
   • Level 3. Dry filtration. Contributes to the complete cleaning of air from paint particles and performs the function of protecting the fan from paint adhesion.
2. Lighting. LED or fluorescent lamps are mounted on the ceiling and walls of the room.
   Also installed automatic sensors control and monitoring of the system of supply and exhaust fans and filters.
   After assembling everything necessary for the water chamber, the painting equipment is installed.

How the work is done

The electric air heater pumps air from the atmosphere into the closed space of the room. Passing through the system, the air is purified by filters, each of which provides a certain purification.
The temperature rises in the room due to the work of the Ten. The painting process begins. Below on the floor, air begins to be sucked out of the chamber, using an exhaust fan. Water curtains are installed in front of the main line, which help to retain paint particles. Here, the air goes through all three levels of purification, if any. Factory-made water-curtain cameras work in the same way.

The positive aspects of the device with your own hands

1. Free planning of the system.
2. Great cost savings.
3. The ability to save money on all components.
4. The ability to use the main parts of the structure.

Disadvantages of the device

1. There may be inaccuracies in the calculations, or imperfections in the installation of the device.
2. There is no way to fully automate the process, since the elements of the device consist of separate parts.
3. There are no guarantees for the performance of such a device.

Price

The cost of building a camera with a water curtain with your own hands can take a long time, but its cost will be about $ 4,000. You can buy a factory one from $ 20,000 and above. To start a business, the best option there is a construction with your own hands, which is much more profitable for a start-up business.

The use of spray booths with a water curtain improves the quality of the finish and eliminates the impact harmful substances per person and the environment, which is caused by various factors related to the size of the painted products, the volume and type of sprayed material, the duration of the use of spray booths, protection requirements environment, working costs. The right spray booth can be selected for all applications with a front suction system with water filtration for solids settling. In this case, the product must be between the operator and the active camera curtain. When choosing a stand, it is necessary to evaluate the dimensions of the product to be painted and the need to use a booth for the simultaneous work of several operators.

Distinctive characteristics:

• The camera is the leader in sales in this segment in Russia, occupying more than 40% of the market.
• With all the necessary technical parameters, painting chambers have a price 15-20% lower than analogs.
• They have all the necessary certificates for use in the Russian Federation.
• The long experience of operating this equipment in the Russian Federation (the first deliveries were made more than 5 years ago) indicate the high quality of the metal and the low level of corrosion of the constituent elements.
• Optimal design the chamber allows in the future to aggregate it with the systems of injection and air filtration to modernize it into an overpressure chamber.
• The constant availability of equipment in the warehouse and all the necessary spare parts allows you to immediately start operating this type of equipment and minimize the risks associated with its downtime.
• A wide assortment range allows you to select it most optimally depending on the width of the processed product, or (if the product is much smaller than the width of the chamber) use it simultaneously when working with several operators.
• To automate the painting process, the spray booth can be supplied with an automatic billet feed conveyor (optional), which leads to an increase in productivity by 2-3 times.

Basic complete set of DF spray booth

Spray booth price with pump Spray booth composition:

• the supporting structure of the chamber, made of galvanized sheet metal.
• adapter flange for mounting the fan on the roof of the chamber
• set of special dry filters for the aspiration unit.
• drainage type hydraulic pump.
• hydraulic pump engine (Italy).
• connecting pipes and components for circulating water inside the chamber.
• frontal water curtain.
• small raised settling tank located at the bottom of the chamber.
• fluorescent lamp - 2 pieces
• Electrical control panel
• Supply voltage 380V / 3 / 50Hz.
• set of installation equipment.
• electrical equipment in special design
• further connection of an external air injection system is provided

The camera can be supplied with or without a fan. You can use your own fan of the same airflow capacity.

Composition: air aspiration unit with brass deflectors and a standard motor (Italy)

• The back wall of the cascade type - maximum spreading of water, i.e. no splashing.
• Possibility of adaptation to the dimensions of the room and non-standard design.
• Fast delivery time - no more than a month.
• Constant availability of all components in the warehouse - instant replacement in case of failure - increased warranty.
• The best prices on the market.

Convenient change of dry filters located above the water curtain.

The ability to quickly clean the camera, in an easily accessible way, as the rear lower part opens like a car hood.

A special drainage type pump in a special design, which allows you to work even with water with large clots of paint.

Powerful explosion-proof fan, i.e. you can work at a distance of 0.5 meters from the working area of ​​the cabin, 100% catching all paint vapors, preventing water dust from entering the product, the operator can work even without a mask. Even if you spray paint with a nozzle down from a meter height, the paint does not reach the floor and is completely captured by the water stand.

The principle of operation of water cabins:

With the help of a fan installed on the roof of the chamber, a vacuum is created, which ensures air suction, with the help of a water curtain (item 1), solid paint pigments are deposited. Water flushing and additional dry filtration (D) allows aerosols to be captured and deposited in a collection tank. The pump (item 2) circulates water through the baths (A, B, C), from which the overflow forms water curtains. Some versions have two additional side curtains to optimize the first stage of filtration. The chamber consists of galvanized metal panels bolted together. Side panels and partitions are load-bearing, mounted on the roof centrifugal fan... Versions in various modifications: only suction front, suction front with additional walls and an elongated roof plus the bottom bathtubs, equipped with a grate, and there are also two heights. For fine cleaning chemical composition air, it is recommended to use a stand-alone coal-fired plant KARB.

Accessories for water spray booths available on request:

• Increase in engine power from 3 to 4 hp
• Explosion Proof Motor Italy
• Active floor (depth 280 mm, width - 1120 mm)
• Side water curtains (for 2 pcs)
• Freestanding water filtration unit
(not required as standard)
• Lamp version IP 55
• Roofless version, discount
• Execution without side panels, discount for each
• Explosion-proof version of the control panel
model "Standard-Eco"
• Option “Ecological” (additional water curtain)
• Increase in working depth from 1.22 m to 1.5 m
• Increase in working depth from 1.22 m to 2 m

Technical Data of DF Water Curtain Spray Booth