In the oil industry, much attention is paid to product quality control. In order to determine the most important qualities of liquid fuel, a sampler for oil products is needed - a device by which product samples are taken while maintaining the conditions for sampling.
The presented instruments and tools are used both in the field, to obtain samples from wells, and to take samples from various containers - tanks, oil pipelines, process columns, in order to check storage conditions. To obtain the most reliable result, all work is carried out by specially trained personnel.
Purpose Samplers
Any enterprise whose activities are closely related to oil or petroleum products require samplers. Their main purpose is to take samples from storage or transportation. The resulting samples are subsequently subjected to multilevel analysis. Based on the results of laboratory tests, the product meets the requirements of GOST and other regulatory documents.
A modern sampler for petroleum products should be manufactured in accordance with the requirements set forth in GOST R15150-69. The vast majority of devices are designed to operate at temperatures from -40 to +50 degrees Celsius and with a kinematic viscosity of up to 11 cSt.
Types of samplers according to purpose
Today, samplers are complex devices that differ from each other in characteristics and scope. According to the design, all sampling devices can be divided into the following groups:
- A bottom sampler for petroleum products takes samples only from the bottom or bottom space.
- Point devices that collect product samples at a specific location or at a specific time are most commonly used in pipelines.
- Multilevel devices allow taking samples simultaneously at several points; they are very often used at oil bases and gas stations.
- Automatic devices that are necessary for automatic collection of samples as the product passes through the pipeline.
- Sectional samplers are stationary installations with a number of sections that are installed in vertical containers.
Any sampler consists of two nodes - a receiving chamber, which takes samples of the product, and a control device, which, by opening the valve, allows fluid to enter the receiving chamber.
Device classification according to design
There are also portable and stationary samplers for petroleum products.
The first type of equipment is used to take samples from mobile storage facilities. Stationary devices are most often used in large enterprises where they operate with large volumes of oil and its products. They, in turn, are divided into several varieties:
- Integral, forming an average sample, which is taken from each layer.
- Portion, which provide samples taken from different points located along the height of the column of matter.
- Portion-integral - the average sample is formed from several samples taken at different levels.
Portable devices are cylindrical vessels made of non-sparking steel with a durable anti-corrosion coating. Any portable sampler for petroleum products has a lid with an air valve and a fluoroplastic stopper with a hole. A rod is fixed in the hole of the plug, which holds the metal cable.
Sample Drive Types
Any sampler for sampling petroleum products is equipped with either an automatic or manual unlocking mechanism.
In any case, sampling is carried out at the behest of the operator. In automated devices, the locking device can obey three types of drives:
- Electric.
- Electromagnetic
- Pneumatic.
The first two types can have remote or analog control, and the valve operates as ordered by the electric drive or according to the instructions of the electromagnet. A pneumatic sampler for petroleum products takes a sample after reaching a certain depth, where the pressure of the medium reaches the set value.