SU1227972A1 - Sampler of liquid for fibrous suspensions - Google Patents

Abstract

This invention relates to a tool B for collecting liquid samples from pulp and allows for improved / reliable and efficient operation. Inside the perforated housing 1 of the sampler with a fitting 2 for draining a liquid, there is a device for cleaning the perforations, formed as two elastic hollow elements, for example bellows 3 and 4, the first of which is attached to the housing cover 5 with a fitting 6 for supplying pressure agent. The second elastic element with a deaf bottom 7 is attached to a disk valve 8 made in the form of a disc with a hole 9 the bottom of the first elastic element. Having shifted when the drain line is blocked, the bottom 7 begins to displace a part of the liquid, equal to the volume expansion of element 4, into the technological apparatus, cleaning the perforations. 1 hp f-ly, 2 ill. / J s with /)

Description

"

The sampler is designed for sampling fluid from fiber suspensions and can also be used in the pulp and paper, chemical, food and other industries, for example, for sampling fluid from pulp with a concentration of 5-12%.

The purpose of the invention is to increase the reliability and efficiency of the sampler in operation.

The drawing shows the device a General view.

The sampler includes a perforated housing 1 with a fitting 2 for draining the liquid. Inside the housing there is a device for cleaning the perforations in the form of two resilient ICs. hollow elements, e.g. bellows 3 and 4, the first of which is attached to the housing lid 5 with fitting 6 for supplying a pressure agent. The second elastic element loudly bottom 7 attached to made in the form of a disc valve 8 with a hole 9 the bottom of the first elastic element. In addition, the housing is provided with a partition 10 that divides it into two voids with a screwdriver 11 for free passage of the second elastically hollow element and a saddle 12 installed with a clearance relative to the poppet valve. A fitting for: a liquid outlet 2 is located in the part of the body with the first elastic element.

The sampler works in the following way.

The stretching of the elastic hollow elements 3 and 4 occurs when pressure is applied to the cavity of the first elastic element through the nozzle 6.

In the absence of a pressure pulse, the valve 8 has a gap with a saddle 12. In this case, the filtered liquid through the opening 11 of the partition 10, the gap between the disc valve and the saddle and the fitting 2 enters the measuring cell (not shown),

During the delivery of the pressure pulse and the agent through the fitting 6, the element 3 is stretched and the disk valve 8, which comes in contact with the seat 12, is mixed, and the liquid is withdrawn from the sampler. Due to the fact that the orifice 9 of the disc valve has a certain resistance to the flow of the pressure agent, the expansion of the element 4 and the displacement of its deaf

to

15

thirty

- thirty

3: 5

40

45

Bottom 7 occurs with some delay in relation to the expansion of the flexible element 3 and the displacement of the ball valve 8.

The diameter of the hole 9 is chosen so that the initial expansion of the elastic element 4 with the depth: chemical bottom 7 occurs only after the poppet valve comes into contact with the saddle. The advance of stretching element 3 can be achieved by making it less rigid than element 4.

Displacing when the liquid line is blocked, the bottom 7 displaces a part of the liquid, equal to the volumetric expansion of element 4, into the technological apparatus (not shown), cleaning the perforations.

Thus, when the disc valve is in contact with the surface of the fixed seat, a more reliable locking of the line for the removal of lid-bone is achieved than by the contact of the movable elastic hollow elements in a known sampler. In addition, the overlapping of the liquid outlet occurs before the liquid is expelled through the perforation of the sampler into the process unit, thus creating conditions for a more uniform flow of liquid from all the openings of the housing, which increases the efficiency of cleaning the perforations.

Claims (1)

1. Liquid sampler for fibrous suspensions, including a perforated housing with a fitting for draining the liquid, a device for cleaning the perforations in the form of two elastic hollow elements, mainly bellows, the first of which is attached to the crush of the housing with a fitting for supplying a pressure agent to its cavity, differs The fact is that, in order to increase the reliability and efficiency of its operation, the bottom of the first elastic element is made in the form of a disc valve with a hole in the center, the elastic element is made with a ch: uim bottom l Well it is strictly attached to the disc valve, the housing is equipped with a partition wall 31227972 4 which divides it into two parts and is located in the part of the body with the first one reinforced with a central hole. and a saddle mounted with a gap2. The sampler according to claim 1, about t is relatively to a disk valve, characterized in that the first elastic element is a flexible elastic element with a strap placed in the central hole, which is smaller than the second elastic fitting for removing the liquid -element.