Multipoint sampling and indicating apparatus of arch-roof tank

Abstract

The invention relates to an arch-roof tank sampling apparatus, and concretely relates to a multipoint sampling and indicating apparatus of an arch-roof tank. The upper portion of an annular track rope (9) is positioned in the pulley slots of pulleys (4) of an upper fixing mechanism, the lower portion of the annular track rope is sleeved in the pulley slot of a transmission fixed pulley (8), the middle portion of one side of the annular track rope is provided with a ball float (12), one end of a sampling and oil guiding tube (10) is connected to the ball float, the other end of the sampling and oil guiding tube is connected to a sampling valve (6) outside the arch-roof tank (14), one end of a rotating shaft (20) is connected to a bearing pedestal (18) at the upper portion of a fixed seat (7), the middle portion of the transmission fixed pulley is fixedly connected to the middle portion of the rotating shaft, the other end of the rotating shaft is connected with a magnetic rotor (17) outside the arch-roof tank, and the magnetic rotor is provided with a reader (15). Stable ball float supporting is formed in the arch-roof tank by using the upper fixing mechanism and the fixed seat, and the accuracy of data obtained in the invention is greatly higher than that of data obtained by using present technologies.

Description

【Technical field】 [0001] The invention relates to a sampling device for a vault tank, in particular to a multi-point sampling indicator device for a vault tank. 【Background technique】 [0002] It is known that in the fields of petroleum, chemical industry, coal-to-oil, lubricating oil or other liquid storage, when storing raw materials, semi-finished materials, and finished materials, due to the mixing of the newly entered liquid and the original liquid; or during liquid storage There are climate influences, temperature influences, precipitation influences, and other factors, and various indicators that appear at this time need to be known in time, that is, various indicators or stratification from top to bottom require multi-point sampling, and the requirements for laboratory analysis are higher. Therefore, it is necessary to sample liquid raw material tanks, semi-finished product tanks, and finished product tanks. The liquid medium obtained by sampling will be tested and a...

AI Technical Summary

Problems solved by technology

Sampling conduits are drawn from each sampling point on the rigid single arm. For a medium storage tank with a large tank height and many sampling points, there are many sampling conduits attached to the long support arm, resulting in the weight of the entire rigid floating arm being too large, easy to bend and break, and thus The service life is shortened, which increases the production cost of the equipment, and the accuracy of the operator is not high. At the same time, it is easy to cause damage to the facilities such as heating pipelines and agitators in the tank.

[0005] With reference to comparative document 1 (storage tank homogeneous sampler "Patent No.: 03239363"), it is through a flange similar to a manhole at the bottom of the storage tank, and one end of the sampling conduit with a uniform hole is sealed and installed in the storage tank. One end of the valve with sampling interface is placed outside the storage tank. The sampling valve communicates with the floating ball and the sampling tube with multiple liquid inlets and uniform holes through the sampling tube. This sampler mainly solves the problem of uniform sampling in the tank but cannot complete multiple The problem of point ratio sampling; but because the floating ball is not fixed, the floating ball and the homogenizing pipe will be affected by their own weight load during use, especially when the height of the liquid in the tank is affected by bending "that is, when the liquid level in the tank is low , the floating ball will inevitably drop, and the homogenizing pipe will bend”, so that the operators outside the tank cannot know the positions of the multiple liquid inlet holes of the homogenizing pipe, which will eventually lead to inaccurate data acquisition

Images