CN210874675U - Exhaust treatment system special for atomic fluorescence photometer - Google Patents

Abstract

The utility model relates to a be exclusively used in atomic fluorescence photometer's exhaust-gas treatment system, including main air hose, filter equipment, baffle, exhaust hood, first exhaust column, second exhaust column and waste liquid collector, the waste liquid collector is the closed, the one end of first exhaust column is linked together with atomic fluorescence photometer atomizer's gas vent, and the other end is linked together with the exhaust hood, the one end of second exhaust column is linked together with the waste liquid import of waste liquid collector, and the waste liquid delivery pipe that is linked together with atomic fluorescence photometer's waste liquid discharge port stretches into in the second exhaust column to the lower terminal surface of waste liquid delivery pipe will be less than the lower terminal surface of second exhaust column, the other end and first exhaust column or the exhaust hood of second exhaust column are linked together, the ventilation hood is installed in autoinjection device's top. The utility model discloses a waste gas treatment system is the totally enclosed convulsions design, the rational utilization wind-force, has improved convulsions efficiency.

Description

Exhaust treatment system special for atomic fluorescence photometer

Technical Field

The utility model relates to a waste gas treatment system especially relates to a waste gas treatment system who is exclusively used in atomic fluorescence spectrophotometer, belongs to environmental protection technical field.

Background

The waste gas generated by the atomic fluorescence photometer in the testing process mainly contains three toxic substances, one is acid mist of strong acid, such as hydrochloric acid mist and nitric acid mist, and is mainly generated by an automatic sampling device; the other is hydrogen generated by potassium borohydride, the other is heavy metal hydride such as mercury vapor, arsenide, lead, cadmium, tin and the like, and the latter two are mainly generated by an atomizer and waste liquid volatilization. The three substances have great harm to human bodies, and particularly heavy metal toxic substances are more likely to generate residues than other substances.

The exhaust emission of current atomic fluorescence photometer is handled, what adopt is the draft hood form, and the draft hood generally is single design, in order to compromise a plurality of waste gas and produce the position, must reserve a section distance between draft hood and the equipment. In short, the ventilation hood must be kept at a certain distance from the equipment in order to simultaneously extract the exhaust gas generated in the No. 1 position and the No. 2 position. The operation mode ensures that the waste gas generated by the atomic fluorescence photometer is naturally sucked into the air of a room and then is sucked and exhausted by the ventilation hood, so that toxic gas is remained in the room to a certain extent, and certain harm is caused to personnel in the room. Some laboratories can be provided with a plurality of ventilation hoods, and the problem cannot be solved fundamentally in the mode, but only the residual degree is light.

In addition, the waste liquid tube of the atomic fluorescence photometer is directly connected with the waste liquid device, and the waste liquid can volatilize a large amount of toxic steam. However, in order to prevent the backflow of the waste liquid caused by the positive pressure generated in the waste liquid device, an opening is inevitably reserved in the waste liquid device, and toxic gas enters a room along the opening to be left. The waste gas treatment mode of the ventilation hood cannot discharge the toxic residues outside the laboratory, because the ventilation hood can only be arranged at the upper part of the instrument, and the waste liquid device must be arranged at the lower part of the instrument.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the not enough that atomic fluorescence photometer's current exhaust treatment device exists, provide an exhaust treatment system who is exclusively used in atomic fluorescence photometer.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

the utility model provides a waste gas treatment system of atomic fluorescence photometer is exclusively used in, includes main tuber pipe, filter equipment, baffle, draft hood, first exhaust column, second exhaust column and waste liquid collector, the waste liquid collector is the closed, be linked together through the waste liquid discharge pipe between the waste liquid discharge port of waste liquid collector and atomic fluorescence photometer, the one end of first exhaust column is linked together with atomic fluorescence photometer atomizer's gas vent, and the other end is linked together with the draft hood, the one end of second exhaust column is linked together with the waste liquid import of waste liquid collector, and the waste liquid discharge pipe stretches into in the second exhaust column to the lower terminal surface of waste liquid discharge pipe will be less than the lower terminal surface of second exhaust column, the other end of second exhaust column is linked together with first exhaust column or draft hood, the draft hood is installed in autoinjection device's top, be equipped with on the draft hood and get the draft hood door of putting, the upper portion of the ventilation hood is communicated with the main air pipe, a baffle plate which blocks the inner diameter of the main air pipe is arranged inside the main air pipe, an air inlet and an air outlet which extend along the circumferential direction of the main air pipe are formed in the position below and above the baffle plate respectively, the cross section of the filtering device is arc-shaped, the inner diameter of the filtering device is equal to the outer diameter of the main air pipe, a gas adsorbent is filled in the filtering device, and an air inlet and an air outlet which are matched with the air inlet and the air outlet of the main air pipe in terms of position and size are formed in the inner surface of the filtering device respectively.

The utility model has the advantages that:

1) the utility model discloses a waste gas treatment system is the design of totally enclosed convulsions, according to the waste gas volume by big change to little, connects main tuber pipe, cowl, first exhaust column and second exhaust column in proper order, and the pipeline narrows down gradually simultaneously, and the rational utilization wind-force has improved convulsions efficiency.

2) The design that the waste liquid discharge pipe gos deep into the second convulsions intraduct has not only collected the waste liquid, has siphoned away the waste gas that the waste liquid volatilizees and produces, has prevented to produce the malleation in the waste liquid ware simultaneously, has avoided the waste liquid refluence phenomenon.

3) The utility model discloses an exhaust-gas treatment system does not receive the influence of system shape, structure, branch pipeline etc. can poison gas with atomic fluorescence photometer production in the test procedure, and efficient suction is clean, does not poison to the room production of place and remains.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the outer surface of the main air pipe is provided with a sliding groove protruding outwards, the inner surface of the filtering device is provided with a sliding block, and the filtering device and the main air pipe are connected in a sliding buckle mode through the matching of the sliding groove and the sliding block.

Adopt above-mentioned further technical scheme's beneficial effect be, the convenient filter equipment of dismantling of slip-lock formula connection carries out the change of adsorption material.

Further, the ventilation hood is made of a completely transparent material.

Adopt above-mentioned further technical scheme's beneficial effect to be, conveniently observe the autoinjection condition in the draft hood.

Further, the gas adsorbent is any one or a mixture of more of activated carbon, molecular sieve, alumina or silica gel.

Drawings

FIG. 1 is a schematic view of the overall structure of the device of the present invention;

FIG. 2 is an enlarged view of the portion A in FIG. 1;

FIG. 3 is an enlarged view of the portion B of FIG. 1;

in fig. 1 to 3, 1, a main air duct; 2. a filtration device; 2-1, an air inlet; 2-2, an air outlet; 3. a baffle plate; 4. a ventilation hood; 5. a first exhaust pipe; 6. a second exhaust pipe; 7. a waste liquid collector; 8. an atomic fluorescence spectrophotometer; 9. a waste liquid discharge pipe; 10. a vent hood door; 11. a chute.

Detailed Description

The principles and features of the present invention are described below in conjunction with examples, which are set forth only to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in figures 1-3, a waste gas treatment system special for atomic fluorescence photometer comprises a main air pipe 1, a filtering device 2, a baffle 3, a ventilation hood 4, a first air exhaust pipe 5, a second air exhaust pipe 6 and a waste liquid collector 7, wherein the waste liquid collector is closed, the waste liquid collector is communicated with a waste liquid discharge port of the atomic fluorescence photometer through a waste liquid discharge pipe, one end of the first air exhaust pipe is communicated with an air exhaust port of the atomic fluorescence photometer 8, the other end of the first air exhaust pipe is communicated with a ventilation hood, one end of the second air exhaust pipe is communicated with a waste liquid inlet of the waste liquid collector, the waste liquid discharge pipe 9 extends into the second air exhaust pipe, the lower end face of the waste liquid discharge pipe is lower than that of the second air exhaust pipe, the other end of the second air exhaust pipe is communicated with the first air exhaust pipe or the ventilation hood, the, the ventilating hood is provided with a ventilating hood door 10 for taking and placing samples, the upper portion of the ventilating hood is communicated with a main air pipe, a baffle plate for blocking the inner diameter of the main air pipe is arranged inside the main air pipe, an air inlet 2-1 and an air outlet 2-2 extending along the circumferential direction of the main air pipe are respectively arranged below and above the baffle plate, the cross section of the filtering device is arc-shaped, the inner diameter of the filtering device is equal to the outer diameter of the main air pipe, the filtering device is filled with gas adsorbent active carbon, and the inner surface of the filtering device is respectively provided with an air inlet and an air outlet which are matched with the position and the size of the air inlet and the air outlet of the main air pipe.

Preferably, the outer surface of the main air pipe is provided with a sliding groove 11 protruding outwards, the inner surface of the filtering device is provided with a sliding block, and the filtering device and the main air pipe are connected in a sliding buckle mode through the matching of the sliding groove and the sliding block.

Preferably, the ventilation hood is made of a completely transparent material.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (4)

1. The utility model provides a be exclusively used in exhaust-gas treatment system of atomic fluorescence spectrophotometer, its characterized in that, includes main tuber pipe, filter equipment, baffle, draft hood, first exhaust column, second exhaust column and waste liquid collector, the waste liquid collector is the closed, be linked together through the waste liquid discharge pipe between the waste liquid discharge port of waste liquid collector and atomic fluorescence spectrophotometer, the one end of first exhaust column is linked together with atomic fluorescence spectrophotometer atomizer's gas vent, and the other end is linked together with the draft hood, the one end of second exhaust column is linked together with the waste liquid import of waste liquid collector, and the waste liquid discharge pipe stretches into in the second exhaust column to the lower terminal surface of waste liquid discharge pipe will be less than the lower terminal surface of second exhaust column, the other end of second exhaust column is linked together with first exhaust column or draft hood, the draft hood is installed in automatic sampling device's top, the utility model discloses a sample collection device, including ventilation hood, main tuber pipe, filter equipment, be equipped with the ventilation hood door of getting to put the sample usefulness on the ventilation hood, the upper portion and the main tuber pipe of ventilation hood are linked together, the inside of main tuber pipe is equipped with the baffle that blocks the internal diameter of main tuber pipe is whole, the air inlet and the gas outlet that extend along the circumferencial direction of main tuber pipe are seted up respectively in the below and the top of baffle to the main tuber pipe, filter equipment's cross-section is arc to the internal diameter equals with the external diameter of main tuber pipe, the filter equipment intussuseption is filled with gaseous adsorbent, be equipped with the air inlet and the gas outlet with the.

2. The exhaust-gas treatment system of claim 1, wherein the outer surface of the main air pipe is provided with a sliding groove protruding outwards, the inner surface of the filter device is provided with a sliding block, and the filter device and the main air pipe are connected in a sliding-buckle manner through the matching of the sliding groove and the sliding block.

3. The exhaust treatment system of claim 1 or 2, wherein the hood is made of a fully transparent material.

4. The exhaust gas treatment system of claim 3, wherein the gas sorbent is a mixture of any one or more of activated carbon, molecular sieve, alumina, or silica gel.

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