RU42658U1 - Sampler - Google Patents

Abstract

A sampler comprising a housing located in ambient air, in which a sampling system for toxic air impurities is fixed, including a removable removable absorption device pneumatically connected through a filter for cleaning air from toxic impurities with an air pump, characterized in that it is equipped with an adjustable throttle counter air volume and a control unit having an electronic air flow regulator and an electronic circuit for controlling the air flow regulator, while the input of the electronic regulator air flow meter is electrically connected to the output of the electronic circuit for controlling the air flow regulator, and its output is connected to an electric motor combined with an air pump, the air volume meter is pneumatically connected between the filter for purifying toxic impurities from the air and an adjustable throttle connected to the air pump connected to the input of the control circuit of the air flow regulator, the housing is detachable with a hinged lid and a rotatable front panel on which the air pump is fixed, adjustable throttle, filter for purifying air from toxic impurities, control unit, air volume counter, controls and alarms.

Description

The proposed utility model relates to gas sampling systems and can be used for sampling toxic impurities in the air at chemical enterprises in the production of toxic substances, as well as in the destruction of chemical weapons stockpiles.

A known sampler containing a sampling pipe, a rod located inside it, at the upper end of which a shut-off valve is mounted for rotation, and a stop is made at the lower end, the lower end of the rod is equipped with a glass closed by a thrust nut and rigidly connected to the sampling pipe and a rotary handle, this rod is passed into the holes made coaxially in the thrust nut and sampling tube, a spring is placed between the stop on the lower end of the stem and the thrust nut of the cup, the rotary handle pivotally closes captivity in the eye of the outside of the glass, and the end of the rotary handle is associated with a rod with its translation. See the description of the utility model for the certificate of the Russian Federation №16405, cl. C 01 N 1/10, published on 12/27/2000 in Bulletin No. 36.

The well-known sampler is complex, does not provide gas sampling for various carriers and requires the presence of a service operator, which drives the rotary handle.

A sampler is also known, comprising a housing located in ambient air, in which a sampling system for toxic air impurities is fixed, including a removable removable absorption device pneumatically connected through a filter for cleaning air from toxic impurities with an air pump, see the utility model for the RF patent No. 34739 cells G 01 N 1/02, published on December 10, 2003 in Bulletin No. 34.

The known sampler uses an air pump in the form of an ejector connected to a compressed air network, there is no monitoring system for the samples taken and a remote control system, which causes the following disadvantages:

- the impossibility of continuous monitoring of the volume of air samples from which toxic impurities are taken by an absorption device;

- the impossibility of remote sampling of toxic air impurities in the field;

- increased risk of sampling in conditions of high concentrations of toxic impurities in the air;

- low accuracy of adjusting the flow rate and volume of air samples from which toxic impurities are taken.

In the proposed utility model, the task is to create a safe, effective sampler, which determined:

- providing the possibility of continuous monitoring of the volume of air samples from which toxic impurities are taken by the absorption device;

- enabling remote sampling of toxic air impurities in the field (in the absence of a compressed air network);

- improving the safety of sampling in conditions of a high concentration of toxic impurities in the air (in the conditions of the destruction of stockpiles of chemical weapons);

- improving the accuracy of adjusting the flow rate and volume of air samples from which toxic impurities are taken.

This problem in the proposed utility model is solved due to the fact that the sampler, comprising a housing located in ambient air, in which a sampling system of toxic air impurities, including a removable removable absorption device, is fixed

connected through a filter for air purification from toxic impurities with an air pump, it is equipped with an adjustable throttle, air volume meter and a control unit having an electronic air flow regulator and an electronic control circuit for the air flow regulator. The input of the electronic air flow regulator is electrically connected to the output of the electronic circuit for controlling the air flow regulator, and its output is connected to an electric motor combined with an air pump.

The air volume meter is pneumatically connected between the filter for cleaning air from toxic impurities and an adjustable throttle connected to the air pump, and is electrically connected to the input of the control circuit of the air flow regulator;

The housing is made detachable with a hinged lid and a rotatable front panel, on which are fixed an air pump, an adjustable throttle, a filter for cleaning air from toxic impurities, a control unit, an air volume counter, controls and alarms.

The claimed sampler has a combination of essential features unknown from the prior art for devices of this purpose, which allows us to conclude that the criterion of "novelty" for the utility model is met.

The essence of the proposed utility model is illustrated using the drawings, which depict:

figure 1 is a functional diagram of a sampler;

figure 2 is a longitudinal section of a sampler with a closed lid;

figure 3 is a top view of the front panel of the sampler. The device of the utility model is as follows. The sampler contains a housing (1) located in ambient air, in which a sampling system of toxic air impurities is fixed, including a removable removable absorption device (2),

pneumatically connected through a filter to clean the air of toxic impurities (3) with an air pump (4).

The sampler is equipped with an adjustable throttle (5), an air volume meter (6) and a control unit (7) having an electronic air flow regulator (8) and an electronic control circuit (9) for an air flow regulator. The input (10) of the electronic air flow controller (8) is electrically connected to the output (11) of the electronic control circuit (9) by the air flow controller, and its output (12) is connected to an electric motor (13) combined with the air pump (4).

The air volume counter (6) is pneumatically connected between the filter for cleaning air from toxic impurities (3) and an adjustable throttle (5) connected to the air pump (4) and is electrically connected to the input (14) of the air flow regulator control circuit (9) ;

The housing (1) is detachable with a hinged lid (15) and a rotatable front panel (16), on which are fixed an air pump (4), an adjustable throttle (5), a filter for cleaning air from toxic impurities (3), a control unit (7 ), air volume counter (6), control and alarm elements (17).

The air volume counter (6) contains a flow meter (18) interconnected, a sensor (19) and an electronic converter (20). The flow meter (18) has a pneumatic inlet and outlet for connecting to a filter for cleaning air from toxic impurities and an adjustable throttle. The electronic converter (20) has an electrical output for connecting to the circuit (9) for controlling the electronic air flow controller. The sampler has an electric power source (21) connected to the electrical components of the sampler.

For sampling toxic ambient air impurities, a removable removable absorption device with a liquid absorber (Drexel with a droplet eliminator) or a solid cartridge is installed in the sampler

sorbent, selected depending on the type of impurities to be determined.

At the same time, a removable removable absorption device is hermetically connected to the filter to purify the gas of toxic impurities, so that the inlet of the absorption device communicates with the surrounding air.

Then, using the adjustable throttle (5) and the electronic air flow regulator (8), the required air flow through the replaceable absorption device (2) is set. Continuous monitoring of the volume of samples of ambient air from which toxic impurities are taken by an absorption device is performed by an air volume counter (6). When sampling is stopped, the power supply is turned off and a removable removable absorption device (2) with a solid sorbent or liquid absorber is disconnected from the sampler and sent for subsequent analysis of the selected sample.

The proposed utility model can be repeatedly made on the basis of units and elements manufactured by the domestic industry using modern mastered technology and can be used to select toxic impurities in the air during the production of various toxic substances or in various technological processes using toxic substances, as well as during destruction stockpiles of chemical weapons, which allows us to conclude that the utility model meets the criterion of "industrial applicability".

The applicant has prepared the proposed utility model of the sampler, the advantages of which were positively evaluated by enterprises and organizations that tested the sampling of toxic impurities of ambient air at their plants, as well as performed ambient air control during the destruction of chemical weapons stockpiles.

Claims (1)

A sampler comprising a housing located in ambient air, in which a sampling system for toxic air impurities is fixed, including a removable removable absorption device pneumatically connected through a filter for cleaning air from toxic impurities with an air pump, characterized in that it is equipped with an adjustable throttle counter air volume and a control unit having an electronic air flow regulator and an electronic circuit for controlling the air flow regulator, while the input of the electronic regulator air flow meter is electrically connected to the output of the electronic circuit for controlling the air flow regulator, and its output is connected to an electric motor combined with an air pump, the air volume meter is pneumatically connected between the filter for purifying toxic impurities from the air and an adjustable throttle connected to the air pump connected to the input of the control circuit of the air flow regulator, the housing is detachable with a hinged lid and a rotatable front panel on which the air pump is fixed, adjustable throttle, filter for purifying air from toxic impurities, control unit, air volume counter, controls and alarms.