Little knowledge about spray paint room

The paint spraying room is an important equipment in painting operations, which has the dual functions of painting and drying workpieces. In industrial production, the use of spray paint rooms is very extensive.

This article provides a brief introduction to its working principle, structural characteristics, and daily maintenance, hoping to be helpful to readers.

1、 The structure and working process of the paint spraying room:

1. Box: Made of steel plates or cold plates, connected by bolts to form a complete frame. The door is a manual opening mechanism, and the door lock adopts a pneumatic spring type; The window is an electric explosion-proof double-layer glass window; The top cover is equipped with an exhaust fan and a ventilation device; The bottom is equipped with lighting fixtures and other facilities.

2. Filtering system: The air is filtered through the primary filter and then enters the secondary filter - aluminum foil needle punched felt filter; After being absorbed and purified by the activated carbon adsorber, the air enters the sub high efficiency filter - activated carbon filter element; Then, a large amount of negative oxygen ions (OH) gas is generated by a negative ion generator installed at the air outlet, and the clean air blocked by the microporous titanium film is discharged outdoors at the air outlet.

3. Air circulation system: This product uses a fan to create a certain pressure difference between the inside and outside of the room to achieve air circulation and ensure that the indoor air pressure is always within the set pressure range.

4. Heating system:

(1) There are two heating methods: electric heating and water bath heating;

(2) Install on the side or bottom of the wall according to different usage requirements;

(3) The temperature of the water bath is generally between 50-60 ° C;

(4) A check valve should be installed on the exhaust pipe at the bottom of the sink to prevent backflow;

(5) When the ambient temperature is too low, electric auxiliary heating can also be used to increase the water temperature to between 40-60 ° C.

5. Exhaust and supply methods:

(1) There are generally three types of exhaust methods: 1. natural ventilation; 2. Mechanical pressurized ventilation; The combination of forced air supply and induced draft fan; A 'hybrid' approach that combines the advantages of the three methods mentioned above.

(2) The size of the air supply depends on the usable area of the room and the requirements for air exchange rate;

(3) Fire prevention devices must be installed to ensure safety;

(4) For large spaces, it is recommended to design bidirectional ventilation fans to ensure a sufficient supply of fresh air.

(5) For tall places, independent exhaust hoods should be installed to prevent the escape of harmful gases.