Device for detecting HS adsorption performance of activated carbon

Abstract

The utility model provides a device for detecting the HS (hydrogen sulfide) adsorption performance of activated carbon, which comprises an air treatment component, a hydrogen sulfide treatment component and a determination component, the air treatment assembly comprises an air purifier, a silica gel dryer and a humidity regulator which are sequentially connected, a first branch pipe and a second branch pipe are arranged on a second air pipe at an air outlet of the silica gel dryer, the first branch pipe is communicated with the humidity regulator, and air outlets of the second branch pipe and the humidity regulator are both communicated with the first air inlet pipe; the hydrogen sulfide treatment assembly comprises a hydrogen sulfide gas cylinder and a gas filter; the gas filter is connected with the second gas inlet pipe; the measuring assembly comprises a mixer and a measuring device, the first air inlet pipe and the second air inlet pipe are communicated with the mixer, and the mixer is communicated with the measuring device. The device is high in gas flow control precision and accuracy, more stable in air humidifying effect and long in service life, and detection is more convenient and accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of activated carbon performance detection, in particular to a HS adsorption performance detection device for activated carbon. Background Art

[0002] Hydrogen sulfide is a toxic and corrosive acidic gas with a strong rotten egg smell and a very low olfactory threshold. The pollution sources of hydrogen sulfide are very extensive, including coke ovens, sewage treatment, oil refining industry, coal and natural gas chemical industry, landfill, waterways, biological decay and other industrial production and life processes. Different concentrations of hydrogen sulfide gas are released during these production and treatment processes, which can easily cause the deactivation of catalysts in the chemical production process and seriously affect product quality; or release into the atmosphere or tail gas, becoming the main pollutant in the gas, irritating the respiratory tract and endangering life and health. In industry, the acidity and corrosiveness of hydrogen sulfide seriously corrode equipment and pipelines. Therefore, purifying hydrogen sulfide in gas has become the main content of desulfurization and is an important technology for environmental governance and industrial production processes.

[0003] At present, the commonly used effective technology for deep removal of hydrogen sulfide gas is mainly adsorption method, which is highly operable. Faced with many adsorption materials, in research and practical applications, it is found that activated carbon has significant advantages such as mature commercial production technology, low cost, easy structure regulation and stable physical and chemical properties. Therefore, activated carbon is currently the main adsorbent for deep removal of hydrogen sulfide in industry, but how to evaluate the desulfurization effect of activated carbon has become a major problem.

[0004] Therefore, a device for detecting the HS adsorption performance of activated carbon is needed so as to be specifically used to evaluate the desulfurization effect of activated carbon. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a detection device for the HS adsorption performance of activated carbon, improve the control precision and accuracy of the gas flow, increase the stability of the air humidification effect, and make the detection convenient and accurate.

[0006] The utility model provides a detection device for the HS adsorption performance of activated carbon, comprising an air treatment component, a hydrogen sulfide treatment component and a measurement component, wherein;

[0007] The air treatment assembly includes an air purifier, a silica gel dryer and a humidity regulator, the air inlet of the air purifier is used to receive air, the air outlet of the air purifier is connected to the air inlet of the silica gel dryer through a first air pipe, the air outlet of the silica gel dryer is connected to a second air pipe, the second air pipe is provided with a first branch pipe and a second branch pipe, the other end of the first branch pipe is connected to the air inlet of the humidity regulator, the other end of the second branch pipe and the air outlet of the humidity regulator are both connected to the first air inlet pipe;

[0008] The hydrogen sulfide treatment assembly includes a hydrogen sulfide gas cylinder and a gas filter, the gas inlet of the hydrogen sulfide gas cylinder is used to receive hydrogen sulfide gas, the gas outlet of the hydrogen sulfide gas cylinder is connected to the gas inlet of the gas filter through a hydrogen sulfide pipe, and the gas outlet of the gas filter is connected to a second gas inlet pipe;

[0009] The measuring component includes a mixer and a measuring device, the first air inlet pipe is connected to an air inlet of the mixer, the second air inlet pipe is connected to another air inlet of the mixer, and the air outlet of the mixer is connected to the air inlet of the measuring device through the first air outlet pipe.

[0010] Preferably, the measuring device includes a measuring tube and an absorption bottle, the measuring tube is filled with an activated carbon test agent, the mixer is connected to the measuring tube through a first air outlet pipe, the first air outlet pipe is provided with a second air outlet pipe, and the second air outlet pipe is connected to the collection bottle.

[0011] Preferably, the humidity regulator comprises a plurality of humidity regulating tubes, each of which is filled with water, and each two adjacent humidity regulating tubes are connected by a connecting tube.

[0012] Preferably, the second air pipe, the hydrogen sulfide pipe and the second air outlet pipe are all provided with a mass flow controller.

[0013] Preferably, the first branch pipe and the second branch pipe are both provided with valves, and the outlet of the air purifier and the outlet of the hydrogen sulfide cylinder are both provided with valves.

[0014] Preferably, a hygrometer is provided on the first air inlet pipe.

[0015] Working principle of the utility model: The HS adsorption performance detection device of the activated carbon of the utility model purifies and dries the air, and then sends it to the humidity regulator for humidity adjustment by the mass flow meter, and then sends it to the mixer. At the same time, the hydrogen sulfide is filtered and then sent to the mixer by the mass flow controller for quantitative measurement, mixed with the air, and then sent to the measuring tube for measurement. The gas monitoring alarm is connected to the gas outlet of the measuring tube for monitoring. By monitoring the hydrogen sulfide in the exhaust gas, the HS adsorption performance of the activated carbon can be calculated by using the time difference between the start and end of the measurement and the flow rate. The absorption bottle can be used for calibration operation.

[0016] Beneficial effects of the utility model: the HS adsorption performance detection device of activated carbon of the utility model adopts a mass flow controller to control the gas flow with high precision and accuracy; a multi-pipeline humidity regulator is selected to make the air humidification effect more stable; a gas filtering device is provided to filter impurities in the gas, so that clean and dry air passes through the mass flow controller, thereby improving the service life of the equipment; by monitoring the hydrogen sulfide in the exhaust gas, the detection is more convenient and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the structure of the HS adsorption performance detection device of activated carbon.

[0018] In the figure: air treatment component 1, air purifier 11, silica gel dryer 12, humidity control tube 13, connecting tube 14, first air tube 15, second air tube 16, first branch tube 17, second branch tube 18, first air inlet pipe 19; hydrogen sulfide treatment component 2, hydrogen sulfide gas bottle 21, gas filter 22, hydrogen sulfide tube 23, second air inlet pipe 24; measuring component 3, mixer 31, measuring tube 32, absorption bottle 33, first air outlet pipe 34, second air outlet pipe 35, mass flow controller 4, hygrometer 5. DETAILED DESCRIPTION

[0019] In order to make the technical solution of the present utility model easier to understand, the technical solution of the present utility model is now clearly and completely described in the form of specific embodiments in combination with the accompanying drawings.

[0020] Embodiment 1:

[0021] like Figure 1 As shown, the HS adsorption performance detection device of activated carbon in this embodiment includes an air treatment component 1, a hydrogen sulfide treatment component 2 and a measurement component 3, wherein;

[0022] The air treatment assembly 1 includes an air purifier 11, a silica gel dryer 12 and a humidity regulator. The air inlet of the air purifier 11 is used to receive air. The air outlet of the air purifier 11 is connected to the air inlet of the silica gel dryer 12 through a first air pipe 15. The air outlet of the silica gel dryer 12 is connected to a second air pipe 16. The second air pipe 16 is provided with a first branch pipe 17 and a second branch pipe 18. The other end of the first branch pipe 17 is connected to the air inlet of the humidity regulator. The other end of the second branch pipe 18 and the air outlet of the humidity regulator are both connected to the first air inlet pipe 19.

[0023] The hydrogen sulfide treatment assembly 2 includes a hydrogen sulfide gas cylinder 21 and a gas filter 22. The gas inlet of the hydrogen sulfide gas cylinder 21 is used to receive hydrogen sulfide gas. The gas outlet of the hydrogen sulfide gas cylinder 21 is connected to the gas inlet of the gas filter 22 through a hydrogen sulfide pipe 23. The gas outlet of the gas filter 22 is connected to a second gas inlet pipe 24.

[0024] The measuring component 3 includes a mixer 31 and a measuring device. The first air inlet pipe 19 is connected to an air inlet of the mixer 31, the second air inlet pipe 24 is connected to another air inlet of the mixer 31, and the air outlet of the mixer 31 is connected to the air inlet of the measuring device through the first air outlet pipe 34.

[0025] Embodiment 2:

[0026] like Figure 1 As shown, the HS adsorption performance detection device of activated carbon in this embodiment includes an air treatment component 1, a hydrogen sulfide treatment component 2 and a measurement component 3, wherein;

[0027] The air treatment assembly 1 includes an air purifier 11, a silica gel dryer 12 and a humidity regulator. The air inlet of the air purifier 11 is used to receive air. The air outlet of the air purifier 11 is connected to the air inlet of the silica gel dryer 12 through a first air pipe 15. The air outlet of the silica gel dryer 12 is connected to a second air pipe 16. The second air pipe 16 is provided with a first branch pipe 17 and a second branch pipe 18. The other end of the first branch pipe 17 is connected to the air inlet of the humidity regulator. The other end of the second branch pipe 18 and the air outlet of the humidity regulator are both connected to the first air inlet pipe 19.

[0028] The hydrogen sulfide treatment assembly 2 includes a hydrogen sulfide gas cylinder 21 and a gas filter 22. The gas inlet of the hydrogen sulfide gas cylinder 21 is used to receive hydrogen sulfide gas. The gas outlet of the hydrogen sulfide gas cylinder 21 is connected to the gas inlet of the gas filter 22 through a hydrogen sulfide pipe 23. The gas outlet of the gas filter 22 is connected to a second gas inlet pipe 24.

[0029] The measuring component 3 includes a mixer 31 and a measuring device. The first air inlet pipe 19 is connected to an air inlet of the mixer 31, the second air inlet pipe 24 is connected to another air inlet of the mixer 31, and the air outlet of the mixer 31 is connected to the air inlet of the measuring device through the first air outlet pipe 34.

[0030] The measuring device includes a measuring tube 32 and an absorption bottle 33 . The measuring tube 32 contains an activated carbon test agent. The mixer 31 is connected to the measuring tube 32 through a first air outlet pipe 34 . A second air outlet pipe 35 is provided on the first air outlet pipe 34 . The second air outlet pipe 35 is connected to the collection bottle 33 .

[0031] The humidity regulator includes a plurality of humidity regulating tubes 13 , each of which is filled with water, and each two adjacent humidity regulating tubes 13 are connected by a connecting tube 14 .

[0032] The second air pipe 16 , the hydrogen sulfide pipe 23 and the second air outlet pipe 35 are all provided with a mass flow controller 4 .

[0033] The first branch pipe 17 and the second branch pipe 18 are both provided with valves, and the outlet of the air purifier 11 and the outlet of the hydrogen sulfide cylinder 21 are both provided with valves.

[0034] The first air inlet pipe 19 is provided with a hygrometer 5 .

[0035] Operation process:

[0036] (1) Calibration operation

[0037] ① Check whether all the connections of the equipment are intact, turn on the power of the mass flow controller to make it work, and set the appropriate flow rate for each flow meter according to the calculation results;

[0038] ② Turn on the power of the air pump to make the air flow through the air purifier 11-silica gel dryer 12-mass flow controller 4-humidity regulator-hygrometer 5-mixer 31 in sequence;

[0039] ③ Unscrew the valve of the hydrogen sulfide gas cylinder 21, so that the hydrogen sulfide gas flows through the gas filter 22-mass flow controller 4-mixer 31 in sequence, and mixes with the air in the mixer 31;

[0040] ④ After the mixture is evenly mixed in the mixer 31, the measuring tube 32 is disconnected by the control valve, and the absorption bottle 33 is connected, so that the mixed gas flows through the mass flow controller 4 and the absorption bottle 33, and the stopwatch is used to time the mixture immediately, and the absorption bottle 33 is disconnected after a certain period of time;

[0041] ⑤Repeat calibration operations ①-④ several times.

[0042] (2) Measurement operation

[0043] First, the control valve is used to disconnect the measuring tube 32 and the absorption bottle 33, and then the absorption bottle 33 is disconnected and the measuring tube 32 is connected, so that the mixed gas flows through the measuring tube 32, and the timing measurement is started. The gas monitoring alarm at the gas outlet of the measuring tube is used to monitor whether the exhaust gas contains hydrogen sulfide. The measurement ends when the monitoring alarm sounds. The HS adsorption performance of the activated carbon can be calculated using the time difference between the start and end of the measurement and the flow rate.

[0044] It should be noted that the embodiments described herein are only partial embodiments of the present invention, rather than all implementations of the present invention, and the embodiments are only exemplary, and their role is only to provide a more intuitive and clear way to understand the content of the present invention, rather than to limit the technical solutions described in the present invention. Without departing from the concept of the present invention, all other implementation methods that ordinary technicians in the field can think of without creative work, and other simple replacements and various changes to the technical solutions of the present invention, all belong to the protection scope of the present invention.

Claims

1. A device for detecting the HS adsorption performance of activated carbon, characterized in that: It comprises an air treatment component (1), a hydrogen sulfide treatment component (2) and a measurement component (3), wherein; The air treatment assembly (1) comprises an air purifier (11), a silica gel dryer (12) and a humidity regulator; the air inlet of the air purifier (11) is used to receive air; the air outlet of the air purifier (11) is connected to the air inlet of the silica gel dryer (12) via a first air pipe (15); the air outlet of the silica gel dryer (12) is connected to a second air pipe (16); the second air pipe (16) is provided with a first branch pipe (17) and a second branch pipe (18); the other end of the first branch pipe (17) is connected to the air inlet of the humidity regulator; the other end of the second branch pipe (18) and the air outlet of the humidity regulator are both connected to the first air inlet pipe (19); The hydrogen sulfide treatment assembly (2) comprises a hydrogen sulfide gas cylinder (21) and a gas filter (22); the gas inlet of the hydrogen sulfide gas cylinder (21) is used to receive hydrogen sulfide gas; the gas outlet of the hydrogen sulfide gas cylinder (21) is connected to the gas inlet of the gas filter (22) through a hydrogen sulfide pipe (23); and the gas outlet of the gas filter (22) is connected to a second gas inlet pipe (24); The measuring component (3) comprises a mixer (31) and a measuring device, wherein a first air inlet pipe (19) is connected to an air inlet of the mixer (31), a second air inlet pipe (24) is connected to another air inlet of the mixer (31), and an air outlet of the mixer (31) is connected to an air inlet of the measuring device via a first air outlet pipe (34).

2. The HS adsorption performance detection device of activated carbon according to claim 1, characterized in that: The measuring device comprises a measuring tube (32) and an absorption bottle (33). The measuring tube (32) contains an activated carbon test agent. The mixer (31) is connected to the measuring tube (32) via a first air outlet pipe (34). A second air outlet pipe (35) is provided on the first air outlet pipe (34). The second air outlet pipe (35) is connected to the absorption bottle (33).

3. The HS adsorption performance detection device of activated carbon according to claim 1 is characterized in that: The humidity regulator comprises a plurality of humidity regulating tubes (13), each of which is filled with water, and each two adjacent humidity regulating tubes (13) are connected via a connecting tube (14).

4. The HS adsorption performance detection device of activated carbon according to claim 1, characterized in that: The second air pipe (16), the hydrogen sulfide pipe (23) and the second air outlet pipe (35) are all provided with a mass flow controller (4).

5. The HS adsorption performance detection device of activated carbon according to claim 1, characterized in that: The first branch pipe (17) and the second branch pipe (18) are both provided with valves, and the outlet of the air purifier (11) and the outlet of the hydrogen sulfide cylinder (21) are both provided with valves.

6. The HS adsorption performance detection device of activated carbon according to claim 1, characterized in that: The first air inlet pipe (19) is provided with a hygrometer (5).

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