CN218924708U - Ceramic furnace activator for activating thermal desorption adsorption tube - Google Patents

Abstract

The utility model relates to a ceramic furnace activator for activating a thermal desorption adsorption tube, which comprises the following components: the activation instrument comprises an activation instrument body, a float flowmeter arranged on one side of the activation instrument body, and a tray part arranged on one side of the activation instrument body; the top of one side of the float flowmeter is provided with an air outlet, and the bottom of one side of the float flowmeter is provided with an air inlet. According to the utility model, an external nitrogen source is directly connected with an air inlet at one side of a float flowmeter, external nitrogen is discharged from an air outlet of the float flowmeter and is led into a buffer bin through a tetrafluoro pipeline again, and after entering from the bottom, nitrogen forms uniform micro-positive pressure in the buffer bin and then enters an adsorption tube position through a micro-flow hole; the buffer bin is a ceramic furnace body, can bear high-temperature heating of 200-450 ℃, and can blow out residual pollution of compounds in a pipeline after long-time use by micro-positive pressure airflow under a high-temperature environment, so that the aging effect is further improved.

Description

Ceramic furnace activator for activating thermal desorption adsorption tube

Technical Field

The utility model relates to the technical field of activating instruments, in particular to a ceramic furnace activating instrument for activating a thermal desorption adsorption tube.

Background

VOCs means an organic compound having a saturated vapor pressure of 70Pa or more at ordinary temperature and a boiling point of 260 ℃ or less at ordinary pressure, or all organic compounds having a vapor pressure of 10Pa or more and having volatility at 20 ℃. Generally, non-methane hydrocarbons (NMHCs), oxygen-containing organic compounds, halogenated hydrocarbons, nitrogen-containing organic compounds, sulfur-containing organic compounds, and the like are classified into several general classes. VOCs are involved in the formation of ozone and secondary aerosols in the atmospheric environment, which have an important impact on regional atmospheric ozone pollution, PM2.5 pollution. Most VOCs have unpleasant and characteristic odors, and are toxic, irritating, teratogenic and carcinogenic, especially benzene, toluene and formaldehyde, which can cause serious harm to human health. VOCs are important precursors for causing city dust haze and photochemical smog, and are mainly derived from the processes of coal chemical industry, petrochemical industry, fuel coating manufacturing, solvent manufacturing and use and the like.

In the analysis of environmental volatile organic compounds, volatile organic compounds in the ambient air or the waste gas of a fixed pollution source are adsorbed and sampled by using a VOCs adsorption tube, then adsorbed compounds are blown out in a thermal desorption mode, further the analysis of an instrument is carried out, the thermal desorption adsorption tube is a consumable material which is repeatedly used, before and after the use, the adsorption tube is required to be activated, no residual organic substances in the adsorption tube are ensured, and the activation of the adsorption tube is carried out under the action of a higher temperature and a certain inert gas flow, so that the residual organic substances in the adsorption tube are purged.

At present, the adsorption tube activating instruments in the market are more in variety and brand, but the number of adsorption tube digits of most activating instruments is about 10-20, and for one-time conventional pollution source and ambient air acceptance monitoring, the activation of the adsorption tube cannot be completed at one time, so that the working efficiency is low.

After the general activation instrument is used for a long time, residual pollution of the compound blown out by the adsorption tube possibly exists in the instrument pipeline, the residual pollution is difficult to effectively remove, and the ageing effect is influenced to a certain extent.

Disclosure of Invention

The utility model aims to provide a ceramic furnace activator for activating a thermal desorption adsorption tube, so as to solve the problems.

In order to solve the technical problems, the utility model provides a ceramic furnace activator for activating a thermal desorption adsorption tube, which comprises: the activation instrument comprises an activation instrument body, a float flowmeter arranged on one side of the activation instrument body, and a tray part arranged on one side of the activation instrument body; the top of one side of the float flowmeter is provided with an air outlet, and the bottom of one side of the float flowmeter is provided with an air inlet; the tray part comprises an adsorption pipe tray arranged on one side of the activation instrument body, a buffer bin arranged at the top of the adsorption pipe tray and a nitrogen interface arranged at the bottom of the tray; the nitrogen interface is connected with the air outlet through a tetrafluoro pipeline, and the air inlet is connected with a nitrogen source.

Further, an adsorption tube position is arranged in the adsorption tube tray, and thirty-one groups of adsorption tube positions are arranged.

Further, after the adsorption tube is inserted into the adsorption tube position, stainless steel plugs are arranged in the residual adsorption tube position.

Further, a micro-flow hole is formed in the bottom of the adsorption tube position and is communicated with the buffer bin.

Further, a display screen panel is arranged on one side of the activation instrument body, and a furnace box is arranged on one side of the activation instrument body.

The ceramic furnace activator for activating the thermal desorption adsorption tube has the beneficial effects that an external nitrogen source is connected and directly connected with the air inlet at one side of the float flowmeter, external nitrogen is discharged from the air outlet of the float flowmeter and is led into the buffer bin through the tetrafluoro pipeline again, uniform micro-positive pressure is formed in the buffer bin after the nitrogen enters from the bottom, then the nitrogen enters the adsorption tube position through the micro-flow holes, residual compounds in the adsorption tube can be desorbed under the high temperature condition in the buffer bin, the desorbed compounds are blown out along with the nitrogen entering the adsorption tube, the aging effect is further improved, the 31 groups of adsorption tubes can be aged at one time, the redundant adsorption tube positions can be blocked by the stainless steel plugs, in addition, the flexibility is improved, the maximum working efficiency can be ensured, and meanwhile, the energy and cost saving can be realized according to the flow rate observed by the flowmeter.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a perspective view of a preferred embodiment of a ceramic oven activator for thermal desorption tube activation in accordance with the present utility model;

fig. 2 is a side cross-sectional view of a preferred embodiment of the tray section of the present utility model.

In the figure:

1. activating an instrument body; 11. a float flow meter; 12. an air inlet; 13. an air outlet;

2. a tray section; 21. a buffer bin; 22. an adsorption tube tray; 23. a nitrogen interface; 24. adsorbing the pipe position; 25. stainless steel plugs; 26. microflow holes;

3. a display panel; 31. a furnace box.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model. On the contrary, the embodiments of the utility model include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

As shown in fig. 1 to 2, the present utility model provides a ceramic furnace activator for thermal desorption adsorption tube activation, comprising: an activation instrument body 1, a float flowmeter 11 mounted on one side of the activation instrument body 1, and a tray portion 2 provided on one side of the activation instrument body 1; the top of one side of the float flowmeter 11 is provided with an air outlet 13, the bottom of one side of the float flowmeter 11 is provided with an air inlet 12, and the tray 2 comprises an adsorption pipe tray arranged on one side of the activator body, a buffer bin arranged on the top of the adsorption pipe tray and a nitrogen interface 23 arranged at the bottom of the tray; wherein the nitrogen interface 23 is connected with the air outlet 13 through a tetrafluoro pipeline, and the air inlet 12 is connected with a nitrogen source.

The detection range of the float flowmeter 11 is (100-5000 mL/min), the flow of gas can be measured well, an external nitrogen source is connected and directly connected with the air inlet 12 on one side of the float flowmeter 11, external nitrogen is discharged from the air outlet 13 of the float flowmeter 11 and is led into the buffer bin 21 through a tetrafluoro pipeline, the nitrogen enters from the bottom and then forms uniform micro-positive pressure in the buffer bin 21, then enters the adsorption tube position 24 through the micro-flow holes 26, the residual compounds in the adsorption tube can be desorbed under the high temperature condition in the buffer bin, the desorbed compounds are blown out along with the nitrogen entering the adsorption tube, the aging effect is further improved, and the flow can be observed according to the flowmeter.

An adsorption tube position 24 is arranged in the adsorption tube tray 22, and thirty-one groups of adsorption tube positions 24 are arranged.

Thirty-one groups of adsorption tube positions 24 are arranged, so that the acceptance monitoring of conventional pollution sources and ambient air can be completed at one time, and the working efficiency is improved.

After the adsorption tubes are inserted into the adsorption tube positions 24, stainless steel plugs 25 are arranged in the residual adsorption tube positions 24, and by arranging the stainless steel plugs 25, when all the adsorption tubes are inserted into the adsorption tube positions 24, the available stainless steel plugs 25 of the residual adsorption tube positions 24 are still arranged, so that the adsorption tube positions 24 are plugged by the stainless steel plugs 25, the flexibility is improved, the maximum working efficiency is ensured, and meanwhile, the energy and cost are saved.

The bottom of the adsorption tube position is provided with a micro-flow hole 26, the micro-flow hole 26 is communicated with the buffer bin 21, one side of the activation instrument body 1 is provided with a display screen panel 3, one side of the activation instrument body 1 is provided with a furnace box 31, when the activation instrument is used, uniform micro-positive pressure is formed in the buffer bin 21 after nitrogen enters from the bottom, then the nitrogen enters the adsorption tube position 24 through the micro-flow hole 26, and an adsorption tube or stainless steel plug 25 is inserted into the adsorption tube position 24 on the adsorption tube tray 22; connecting a tetrafluoro pipeline to a nitrogen interface 23 below the adsorption tube tray 22, connecting the other end of the tetrafluoro pipeline to the air outlet 13 of the float flowmeter 11, connecting the air inlet 12 of the float flowmeter 11 with a nitrogen source, and regulating the flow; and the activation program is selected on the display screen panel 3 to start aging, the adsorption tube tray 22 is automatically lifted into the oven box 31, the aging countdown is started, the temperature of the buffer bin can be adjusted within the range of 200-450 ℃, and the aging time can be adjusted within the range of 60-999 minutes.

The above-described preferred embodiments according to the present utility model are intended to suggest that, in view of the above description, various changes and modifications may be made by the worker in question without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims (5)

1. A ceramic furnace activator for thermal desorption adsorption tube activation, comprising: an activation instrument body (1), a float flowmeter (11) mounted on one side of the activation instrument body (1), and a tray portion (2) provided on one side of the activation instrument body (1);

an air outlet (13) is arranged at the top of one side of the float flowmeter (11), an air inlet (12) is arranged at the bottom of one side of the float flowmeter (11),

the tray part (2) comprises an adsorption tube tray (22) arranged on one side of the activation instrument body (1), a buffer bin (21) arranged at the top of the adsorption tube tray (22) and a nitrogen interface (23) arranged at the bottom of the adsorption tube tray (22);

the nitrogen interface (23) is connected with the air outlet (13) through a tetrafluoro pipeline, and the air inlet (12) is connected with a nitrogen source.

2. A ceramic furnace activator for thermal desorption adsorption tube activation as claimed in claim 1, wherein,

an adsorption tube position (24) is arranged in the adsorption tube tray (22), and thirty-one groups of adsorption tube positions (24) are arranged.

3. A ceramic furnace activator for thermal desorption adsorption tube activation as claimed in claim 2, wherein,

after the adsorption pipe is inserted into the adsorption pipe position (24), a stainless steel plug (25) is arranged in the residual adsorption pipe position (24).

4. A ceramic furnace activator for thermal desorption adsorption tube activation as claimed in claim 3, wherein,

the bottom of the adsorption tube position (24) is provided with a micro-flow hole (26), and the micro-flow hole (26) is communicated with the surge bin (21).

5. A ceramic furnace activator for thermal desorption adsorption tube activation as set forth in claim 4, wherein,

a display screen panel (3) is arranged on one side of the activation instrument body (1), and a furnace box (31) is arranged on one side of the activation instrument body (1).

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