SU815574A1 - Device for preparation of liquid sample for analysis - Google Patents

Description

one

The invention relates to a device for checking the frequency of a working fluid in a hydraulic system.

Closest to the invention is a sampler including a receptacle with a removable filter element and detachable valves 1.

The disadvantages of the known sampler are that the sample preparation process is long-lasting, since the fluid does not flow through the sampler, the sample volume is limited, and the withdrawn fluid does not return to a controlled environment.

The purpose of the invention is to accelerate the process of preparation and ensure the possibility of sampling of various volumes.

The goal is achieved by the fact that the device is equipped with an optical filter, made in the form of a grid with a lens mounted above it, and a dispenser.

In addition, in order to purge and dry the removable filter element, the device is equipped with a compressed gas supply line, and, in order to ensure effective cleaning of the screen, it is equipped with a washing line.

The drawing shows a diagram of the device.

The sampler contains a receiving tank 1 with a removable filter element 2 and a two-way valve 3 and non-return valves 4 and 5, reporting the receiving tank 1, respectively, through the filter element 6 with a line 7 of compressed gas supply (for example, azote), and through a detachable valve 8 with liquid inlet from unit 9, a visual inspection of the purity of the fluid. Through a two-way valve 3, the discharge from the receiving tank 1 is in turn communicated with

5 drain tank 10 or through a detachable valve 11 - with block 9. Unit 9 through additional detachable valves 12 and 13 communicated with the hydraulic system. Unit 9 contains an optical filter 14 having a lens 15 with an electrically illuminated light 16, a flat glass (not shown) and a grid 17 protected from the flow. The optical filter 14 is communicated on one side by a washing line 18

Claims (3)

S with filters 19 and hydrolines 20 and 21 - with a crane 22, which by hydraulic line 23 is connected to the hydraulic system via an additional separable valve 12, and on the other hand to the second three-way crane 24 with hydraulic lines 25 and 26, the output of the three-way crane 24 communicates with the hydraulic line mi 27 and 28 through a detachable valve 13 with a hydraulic system; hydraulic line 29 through non-return valve 30, hydraulic line 31 through adjustable flow meter 32, hydraulic line 33 through non-return valve 34 and hydraulic line 35 - with hydraulic line 28, through hydraulic line 36, split valve 8 and non-return valve 5 - with a receiving capacity 1. Between the split the valve 11 and the hydraulic line 31 is installed a check valve 37. The device operates as follows. The working fluid from the controlled hydraulic system through the split valve 12 enters the block 9 of the visual inspection of the purity of the hydroline 23. In the upper position of the three-way valve 22, the working fluid of the hydroline 21 enters the optical filter 14, and through the hydrolines 26, 29, 31,33, 35 and 28 through a three-way valve 24, a check valve 30, a dispenser 32, a non-return valve 34 and a detachable valve 13 are discharged after passing through the optical filter 14 of a predetermined sample volume determined by the dispenser 32. At a signal from the latter, the second three-way valve 22 is set to its position, and the working fluid through the hydroline 28 through the detachable valve 13 enters the drain line of the controlled hydraulic system. A visual assessment of the degree of contamination of the liquid is made through a magnifying lens 15 with an electric highlight 16 on the sediment on the grid 17 of the optical filter 14. If large particles of pollution are detected on the grid 17 more than the quantity of the controlled system’s liquid, the grid 17 of the filter 14 undergoes cleaning the countercurrent of the liquid cleaned with filters 19. In this case the valve -22 (lower position) the fluid flow from the filter, cleaned with filters 19, is directed along the washing line 18 to the screen of the optical filter 14 in reverse occurrence for its cleaning and vaets dumped in controlled return line system via valve 24 (Ver her position). If there is a small to the quantity (less than permissible) part of the contamination on the grid 17, the three-way valve 24 is installed in the lower position, and the fluid in the hydroline 26 through the detachable valve 8, in the hydroline 3 through the check valve 5 and in hydrolation 27 enters the receiving tank 1 with a removable filter element 2 and more through a two-way valve 3, hydro line 29, detachable 11 and check valve 7, dispenser 32, hydraulic line 3, non-return valve 34, hydraulic lines 5 and 28, detachable valve 13 - to the live hydraulic line of the controlled hydraulic system. The amount of fluid passing through the reservoir 1 is regulated by the dispenser 32. After passing through the receiving tank 1 the required amount of liquid, the three-way valve 24 switches to the upper position, and the liquid, mine receiving tank 1, goes to the drain line of the controlled hydraulic system. The two-way valve 3 is set in position to communicate the receiving tank 1 with the drain tank into which the remaining liquid in the receiving tank 1 is drained. Through the filter element 6 and the check valve 4, the receiving tank 1 communicates with the compressed gas supply line 7 and purges the removable filter element 2 with dry, purified nitrogen. The filter element 2 in the cage is removed from the receiving tank and sent for analysis of the number and size of settled particles. To prepare the sampler for further operation, the three-way valve 22 is placed in the lower position, and a stream of cleaned liquid filters 19 flushes the optical filter 14 and the passage through the grid 17 of the optical filter 14 into the drainage line through the three-way valve 24, which is in the upper position. A new removable filter element 2 is installed in the receiving tank 1 and all the described operations are repeated again at the next control operation. Claim 1. Device for preparing liquid samples for analysis, including a receiving tank with a removable filter element and separable valves, characterized in that, in order to accelerate the process of preparation and ensure the possibility of sampling of various volumes, it is equipped with an optical filter line installed above it, and dispenser. 2. The device according to claim 1, characterized in that it is provided with a compressed gas supply line. 3. The device according to claim 1, characterized in that it is provided with a washing hydroline. Sources of information taken into account in the examination 1. USSR author's certificate №242488, cl. 6 01 N 1/10, 1969.