Selection of ventilation system.
Substantiate the appropriate climatic conditions for production facilities that meet the required sanitary regulations in the design of industrial enterprises.
If the air temperature in the production facilities is not controlled, it can rise from t = 18-25% to t = 30-33%. Therefore, the optimal climatic conditions are determined in accordance with GOST 12.1-006-88 and CH 247-81.
In winter t=17- 190 =40 60%
In summer t=20 - 220 =40 60%
We find the general air exchange for industrial buildings as follows.
Ltp=Lvit = m3/hour.
Qizb=Qob+Qp+Qm=100000+200000+250000=4500000
Ltr and L vit - the value of incoming and outgoing air.
tit and tvim - incoming and outgoing air temperature.
Ltrva L vit= m3/hour.
Electrical safety.
Justify the need to use a protective ground connection. Electricity is widely used in manufacturing. Therefore, great attention should be paid to electrical safety. If an electric chain is connected through the human body or if a person touches two points in the chain, the person is electrocuted. A number of electrical safety measures can be mentioned, including the protection of protective earthing, the use of neutral earthing, the use of additional insulation, the use of protective barriers.
7.1. and 7.2. the figure shows the grounding and grounding protection.
Figure 7.1 Grounding protection 7.2. Picture. Zero connection protection
schematic diagram
Fire safety.
Defining an industry category based on the fire resistance of a fire safety building workshop.
The facility, designed in accordance with CH i P 11-2-81, falls into the category for fire, explosion, flammable, hazardous.
The building materials are non-combustible fire resistance class 1.
Demand for first aid kits. The designed unit is equipped with a fire extinguisher and primary fire extinguishers. There are 2 fire extinguishers - OXP-10, and OU-5, 1 water tank, 1 sand tank, 2 buckets, 2 clays, 1 ax, 2 drums.
Fire water supply. The design department has an engineering device for water collection, transportation, storage and use. The department is equipped with a fire hydrant and a water tank with hoses.
Communication, fire alarm.
Automatic means are used to ensure the basic conditions of fire safety. The department used a POST-1 notification device. It can control an area of 20 m2, start at 700 C and report in 0.7 seconds. In addition, the DV-1 notification scheme was used.
7.3. Figure Schematic of a DV-1 transmitter.
informers; 2 receiving equipment; 3rd fire remote.
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