CN216484740U - Multichannel automatic control active carbon ignition point apparatus - Google Patents

Abstract

The utility model belongs to the technical field of activated carbon detection equipment, and discloses a multichannel automatic control activated carbon ignition point tester. The air purification device is provided with an air pump, an air purifier and a float flowmeter; the air pump is connected with the air purifier through a gas pipeline, and the air purifier is connected with the float flowmeter through a gas pipeline. The heating cavity structure is provided with a thermocouple, a thermocouple support frame, a porous quartz plate, a heating block temperature measuring position, 3 to a plurality of parallel sample grooves, a heating resistor, a vent groove and a sample channel. The utility model has the advantages of rapidness, high efficiency, simple operation, large processing capacity, compact structure, high accuracy and the like, and the automation of the detection process of the ignition point of the active carbon can be realized by using the adsorption instrument, the manual detection operation steps are simplified, and the detection accuracy and efficiency are improved.

Description

Multichannel automatic control active carbon ignition point apparatus

Technical Field

The utility model belongs to the technical field of activated carbon detection equipment, and particularly relates to a multichannel automatic control activated carbon ignition point tester.

Background

At present, the activated carbon industry is developing vigorously, and in the field of detection of related activated carbon, a common ignition point detection method comprises the following steps: the method comprises the steps of introducing gas with a certain flow into an activated carbon sample in a built measuring device, gradually heating until the sample reaches an ignition point, automatically igniting and burning, recording the temperature of the sample at any time, drawing a temperature rise curve, rapidly raising the temperature and deflagrating when the sample is ignited, wherein the temperature during deflagration is the ignition point of the sample. The detection method has the advantages of complex operation, long time consumption, multiple human factors and large error range. The detailed method is two currently effective national detection standards: GB/T20450-2006 method for testing ignition point of activated carbon and GB/T7702.9-2008 method for testing ignition point of coal granular activated carbon.

The ignition point test must begin from normal temperature, and ordinary ignition point tester furnace body cooling is slow, needs the long time of cooling to carry out next experiment. Although the equipment for automatically measuring the ignition point can be occasionally seen in the market, the equipment is simple in design, only one sample can be detected at a time, the time consumption is long, the problem of slow cooling cannot be solved, and one sample can be parallelly detected for one time, so that the time is consumed for one day.

Through the above analysis, the problems and defects of the prior art are as follows: the existing equipment for automatically measuring the ignition point is simple in design, can only detect one sample at a time, consumes long time and cannot solve the problem of slow cooling.

The difficulty in solving the above problems and defects is: in order to ensure uniform heating of the samples, the whole module is required to be uniformly heated, a material with high heat transfer speed is required to be selected, and all the samples are required to be wrapped, so that multiple channels are formed, a plurality of parallel heating modules are required, a plurality of control systems are required, and the condition does not exist in the conventional equipment.

The significance of solving the problems and the defects is as follows: if these problems cannot be solved, the single-channel device and the known set-up device do not have a great improvement in efficiency, and besides the fact that the operator does not need to record at any time, a set of valid sample information can be obtained in about two days. To speed up, only multiple devices can be purchased.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a multichannel automatic control activated carbon ignition point tester. The utility model is a device with rapider, high efficiency, simple operation, large processing capacity, compact structure and high accuracy, simplifies the manual detection operation steps, improves the detection efficiency and reduces the manual error.

The utility model is realized in such a way that the multichannel automatic control active carbon ignition point tester is provided with a tester body;

the tester body is provided with an instrument switch, an air purification device, a heating cavity structure and a control device.

Further, the air purification device is provided with an air pump, an air purifier and a float flowmeter;

the air pump is connected with the air purifier through a gas pipeline, and the air purifier is connected with the float flowmeter through a gas pipeline.

Furthermore, the heating cavity structure is provided with a thermocouple, a thermocouple support frame, a porous quartz plate, a heating block temperature measuring position, 3 to a plurality of parallel sample grooves, a heating resistor, a vent groove and a sample channel.

Further, the thermocouple and the thermocouple support frame are fixed in the heating furnace chamber.

Further, the heating furnace chamber is partitioned into a plurality of channels.

Furthermore, the bottom of each sample channel is provided with a small hole with an air passage, and an upper thermocouple and a lower thermocouple are arranged at the position of a sample layer in each sample channel.

By combining all the technical schemes, the utility model has the advantages and positive effects that:

the utility model has the advantages of rapidness, high efficiency, simple operation, large processing capacity, compact structure, high accuracy and the like, and the automation of the detection process of the ignition point of the active carbon can be realized by using the adsorption instrument, the manual detection operation steps are simplified, and the detection accuracy and efficiency are improved.

Meanwhile, a plurality of channels are separated in the heating furnace chamber, each channel can independently complete all experimental steps, and each channel can independently control and independently calculate a test result. The bottom of the sample channel is provided with a small hole with an air passage, so that the circulation of combustible gas air is ensured, and the activated carbon is convenient to fully contact with air for combustion. The sample layer position in each sample channel is provided with an upper thermocouple and a lower thermocouple for temperature measurement, the upper temperature deviation and the lower temperature deviation of the sample are automatically calculated, and the accuracy of the measurement result is ensured. The temperature differences between the individual channels do not affect the determination of the ignition point. After all the gas circuits are measured, ventilation can be increased, the furnace temperature is reduced rapidly, the next experiment is carried out in a short time, the operation is simple, the consumed time is short, the interference of human factors is avoided, and the error is small.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a multi-channel automatic control activated carbon ignition point tester provided by an embodiment of the utility model.

Fig. 2 is a schematic structural diagram of an air purification apparatus according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a heating cavity structure according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a control device according to an embodiment of the present invention.

In the figure: 1. an instrument switch; 2. an air purification device; 21. an air pump; 22. an air purifier; 23. a control valve; 24. a float flow meter; 3. a heating cavity structure; 31. a thermocouple; 32. a thermocouple support frame; 33. a porous quartz plate; 34. a heating block temperature measuring position; 4. and a control device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Aiming at the problems in the prior art, the utility model provides a multichannel automatic control activated carbon ignition point tester, and the utility model is described in detail with reference to the attached drawings.

As shown in fig. 1 to 4, the multichannel automatic control activated carbon ignition point tester provided by the embodiment of the utility model comprises: the device comprises an instrument switch 1, an air purification device 2, a heating cavity structure 3 and a control device 4;

the air cleaning device 2 includes: an air pump 21, an air cleaner 22, a control valve 23, and a float flow meter 24; the air pump 21 is connected to the air cleaner 22 through a gas line, the air cleaner 22 is connected to the air control valve 23 through a gas line, and the air control valve 23 is connected to the float flowmeter 24 through a gas line.

The heating chamber structure 3 includes: thermocouple 31, thermocouple support frame 32, porous quartz plate 33, heating block temperature measuring position 34, parallel 3 to multiple sample grooves, heating resistor, vent groove, sample channel; a thermocouple 31 and a thermocouple support bracket 32 are fixed in the heating furnace chamber. A plurality of channels are separated in the heating furnace chamber, each channel can independently complete all experimental steps, and each channel can independently control and independently calculate a test result. The bottom of the sample channel is provided with a small hole with an air passage, so that the circulation of combustible gas air is ensured, and the activated carbon is convenient to fully contact with air for combustion. The sample layer position in each sample channel is provided with an upper thermocouple and a lower thermocouple for temperature measurement, the upper temperature deviation and the lower temperature deviation of the sample are automatically calculated, and the accuracy of the measurement result is ensured. The temperature differences between the individual channels do not affect the determination of the ignition point. After all the gas circuits are measured, ventilation can be increased, the furnace temperature is reduced rapidly, the next experiment is carried out in a short time, the operation is simple, the consumed time is short, the interference of human factors is avoided, and the error is small.

The control device 4 transmits the temperature signal and the working state in real time, and the real-time state of each sample is judged through the processing system; when the end point of the experiment is reached, the corresponding air pump 21 is controlled to stop running so as to achieve the purpose of stopping combustion. The control device 4 is internally provided with a data processing system, and the data processing system comprises a data processing and control unit which is connected with the control device through a data transmission line. The instrument switch is connected with the control chip to control all power supplies of the instrument; the air pump is connected with an air purifier to purify air and then supplies air to the heating cavity; the middle part is connected with a float flowmeter in series to control the strength of the airflow.

The heating cavity is heated by electric control, so that the heating uniformity is guaranteed; the thermocouple transmits the real-time temperature to the control software, records and judges the temperature, and determines and controls the reaction; the porous quartz plate structure bears a sample, and the sample can not fall off and can ensure that air flow is supplied from bottom to top.

The working principle of the utility model is as follows: air is pressurized and input by an air pump, purified and dried by a purification pipe, and is introduced into an active carbon sample cavity to be fully contacted and mixed with a sample by controlling a constant flow through a control valve and a float flowmeter. And heating the sample in the sample cavity at a constant speed until the sample reaches a fire point, and igniting and combusting. When the fire is burning, a great deal of heat is released to raise the temperature of the cavity suddenly, the temperature change curve is recorded and detected by the control computer, the end of the experiment is judged, and the result of the ignition point is automatically calculated.

The data processing and control unit according to the utility model is designed for: controlling the activated carbon ignition point tester to complete the whole detection process of activated carbon ignition point measurement; controlling to read all thermocouple temperature readings, wherein the reading operation can be continuously executed, and all temperature data are recorded and a temperature change curve is made in the reading operation; judging the end point of the detection process according to the data, and automatically calculating the detection result, namely the temperature of the ignition point; and after the flame is extinguished (generally, the air supply is interrupted for 5 minutes), all air valves are opened, the air flow is increased, and the heating block is rapidly cooled so as to ensure that the next experiment can be carried out as soon as possible.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the utility model, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the utility model as defined by the appended claims.

Claims (4)

1. The utility model provides a multichannel automatic control active carbon ignition point apparatus which characterized in that, multichannel automatic control active carbon ignition point apparatus is provided with:

a meter body;

the tester body is provided with an instrument switch, an air purification device, a heating cavity structure and a control device; the air purification device is provided with an air pump, an air purifier and a float flowmeter;

the air pump is connected with the air purifier through a gas pipeline, and the air purifier is connected with the float flowmeter through a gas pipeline; the heating cavity structure is provided with a thermocouple, a thermocouple support frame, a porous quartz plate, 3 to a plurality of parallel sample grooves, a heating resistor, a vent groove and a sample channel.

2. A multichannel automatic control activated carbon ignition tester as claimed in claim 1 where the thermocouple and thermocouple support are fixed in a furnace chamber.

3. The multi-channel automatically controlled activated carbon fire tester as recited in claim 2, wherein a plurality of channels are separated in said heating chamber.

4. A multi-channel automatic control activated carbon ignition tester as defined in claim 1, wherein the bottom of said sample channels is provided with small holes with air passages, and each sample layer in each sample channel has upper and lower thermocouples.

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