(i) Generators shall be of approved construction and shall be plainly marked with the maximum rate of acetylene in cubic feet per hour for which they are designed; the weight and size of carbide necessary for a single charge; the manufacturer's name and address; and the name or …

Construction of synchronous machines • On large generators and motors, brushless exciters are used. • A brushless exciter is a small AC generator whose field circuits are mounted on the stator and armature circuits are mounted on the rotor shaft. • The exciter generator's 3-phase output is rectified to DC by

(14) OAR 437-002-3253 General requirements for Acetylene generators (currently 253(f) (a) When using acetylene generators you must: (A) Use those that are of approved construction. (B) Ensure they are plainly marked with: (253(f)(1) (i) Maximum weight and size of carbide necessary for a single charge. (ii) Manufacturer's name and address

(14) OAR 437-002-3253 General requirements for Acetylene generators 253(f) (a) When using acetylene generators you must: (A) Use those that are of approved construction. (B) Ensure they are plainly marked with: (253(f)(1) (i) Maximum weight and size of carbide necessary for a single charge. (ii) Manufacturer's name and address

Acetylene 100 74-86-2 Ingredient name % CAS number There are no additional ingredients present which, within the current knowledge of the supplier and in the concentrations applicable, are classified as hazardous to health or the environment and hence require reporting in this section. Chemical name :acetylene Other means of identification

Patent for machines that generate acetylene gas for a "simple and comparatively inexpensive construction, in which the gas is thoroughly washed before entering the service-pipe and in which the water-supply to the generator is controlled by the gas pressure and the carbid kept at all times cooled by surrounding water" (lines 11-17).

The use of acetylene generators shall comply with this section and Chapter 6 of NFPA 51A. 3508.2 Portable Generators The minimum volume of rooms containing portable generators shall be 35 times the total gas-generating capacity per charge of all generators in the room.

An acetylene generator is a device which produces a steady supply of acetylene gas for use in welding works, repair, or construction shops where acetylene is constantly required. The device, which has two basic types, works by exposing calcium carbide …

To fully utilize the potentials in the portable acetylene generators, there is need for modification of designs available with proper training of welding workers in relation to mode of operation ...

New query. §4805. Inside Generator Rooms or Compartments. (a) Acetylene Generators shall not be installed in buildings exceeding one story in height, unless they are installed on the top floor or roof. (b) Generators installed inside buildings shall be enclosed in a separate room. The walls, partitions, floors, and ceilings of inside general ...

Acetylene is a colorless, combustible gas with a distinctive odor. When acetylene is liquefied, compressed, heated, or mixed with air, it becomes highly explosive. As a result special precautions are required during its production and handling. The most common use of acetylene is as a raw material for the production of various organic chemicals ...

Acetylene (C 2 H 2) is a colorless, highly flammable gas with a garlic-like odor. Purchase High-pressure Acetylene. We offer compressed acetylene in various grades specific to different applications such as: • A fuel gas (mixed with oxygen) for welding, cutting, brazing and soldering. • …

OSHA is proposing in this NPRM that employers comply with NFPA 51A-2001, provided they demonstrate that the installations, facilities, equipment, or structures used to generate acetylene or to charge (fill) acetylene cylinders existed, or were approved for construction or installation, prior to February 16, 2006.

Acetylene generator . Equipment in which acetylene is generated from the reaction of calcium carbide with water. Acetylene gasholder . Device for storing the acetylene produced before cylinder filling. Acetylene heat exchanger or cooler : Equipment where the temperature of the passing acetylene is intentionally decreased or increased. Acetylene ...

Most high-capacity acetylene generators use a rotating screw conveyor to feed calcium carbide granules into the reaction chamber, which has been filled to a certain level with water. The granules measure about 0.08 in x 0.25 in (2 mm x 6 mm), which provides the right amount of exposed surfaces to allow a complete reaction.

Working of acetylene generators using chemical reaction process Chemical reaction process is used to make acetylene at normal temperatures. A typical sequence of operations is detailed below for converting various raw materials into acetylene by the chemical process:- Acetylene generators use a rotating screw conveyor for feeding calcium carbide granules in the reaction chamber, which

Carbide sludge (10.4-11.5 tonnes day(-1)) is generated from the reaction of calcium carbide (900 kg) and water (6,000 L) in the production of acetylene (2,400 m3), in three selected acetylene ...

Acetylene Gas Plant & Generator. Our acetylene plants are carefully designed and inspected by experienced engineers before assembly to ensure our customers a 99.8% efficient and dependable D.A plant. Read more. AIR SEPARATION GAS PLANT.

acetylene generator, bottle filling room, business offices, and employee areas. To the west of the plant was the decant tank area, which consisted of six 10,000 gallon water tanks and a small wooden shed (lime shed) which housed the pump and associated piping for delivering decant water to …

Acetylene Explosion in a Farmhouse (Continued from page 600). The generator leaked gas when a supposedly automatic shutoff failed to function, and when Mr. Schultz lighted the basement burner the ...

Oxygen acetylene torches are the most common, using acetylene (C 2 H 2) as the main fuel in combination with oxygen to generate the highest combustion temperature of approximately 3160 °C. Other gases in use are propane (C 3 H 8 ), propylene (C 3 H 6 …

The Global Acetylene Generator Market report A wide range of applications, Utilization ratio, Supply and demand analysis are also consist in the …

Acetylene Generator. The Generator has temperature safety instrument, water inlet control, high water shutoff, low water level alarm, automatic carbide feeding, automatic residue discharge, and over pressurization safety relief valves. ... No flammable material should be used for the construction of the Acetylene Plant building.

The acetylene generator will be in operation at this pressure. This is the maximum pressure for the acetylene plant to function in a safe manner. During the service life of the plant, this pressure should never be exceeded. Design Pressure; The acetylene generator is designed at this pressure.

4.4.5 Acetylene generator vessel The generator vessel contains the reaction of calcium carbide with water to produce acetylene gas, carbide lime, and heat. The generator vessel includes access covers and hatches, grating, electric motors, control valves, and manual valves. The access covers and hatches provide an opening for

To fully utilize the potentials in the portable acetylene generators, there is need for modification of designs available with proper training of welding workers in relation to mode of operation ...

Excess heating of the generators is dangerous because acetylene at 1.5 bar and 500 to 600°C self-ignites and explodes. (decomposition temperature) Therefore the normal operating pressure is 1.0 bar and a blow-down at 1.5 bar is mandatory. Acetylene-air mixtures are highly explosive in the range of 2.8% up to 65% .

As in the other figure, A is the generator and B is the gas-holder. A supply of carbide S is placed in the generator and water from a tank C is allowed to drip or spray onto the carbide. The gas collects in the gas-holder as before. This apparatus represents in principle the parts of a machine for generating acetylene by this process.

Calcium carbide is the most popular raw material used for the commercial production of acetylene. It is created by mixing lime and coke in a blast furnace. The product manufactured is calcium carbide. It is reacted with water to create acetylene gas, and this reaction can be easily formulated as CaC2 + 2H2O → C2H2 + Ca (OH)2.

General Industry and Construction Safety and Occupational Health Standards - (R. 325.51983 to Appendix A) General Industry Safety Standards - (R. 408.10001 to R. 325.34010) PART 12 - WELDING AND CUTTING (R. 408.11201 to R. 408.11299) ACETYLENE GENERATORS - …

This is particularly important with the equipment handling the acetylene like the acetylene manifold system, acetylene generator, etc. ... The design and construction should be robust. Proficient ...

We still use Acetylene generators for our lighting. Carbide in the bottom compartment, water in the top tank drips down, Great system. This is very low pressure and very safe. The generator hangs on our hip with the gas tube to the helmet and jet with pizzo started. I have recently been restoring an old "Road side" Acetylene generator.

If acetylene is being supplied by a low-pressure acetylene generator, which supplies acetylene at a pressure of approximately 1/4 psig (1.7kPa), an injector torch must be used. An injector torch also has the advantage of being able to draw out the last remnants of acetylene from a cylinder, which a positive pressure torch is unable to do.

ACETYLENE GENERATORS — REQUIREMENTS (First Revision) 1 SCOPE 1.1 This standard covers the requirement of design, construction, performance and testing of portable and stationary, automatic and non-automatic, low pressure and medium pressure acetylene generators of water to carbide type or carbide to water type to be employed

The provisions of § 1910.102(b)(2) also apply when the facilities, equipment, structures, or installations used to generate acetylene or to charge (fill) acetylene cylinders were approved for construction or installation prior to February 16, 2006, but constructed and installed on or after that date.