An absorbent device for an activity check test and a system thereof

Abstract

The utility model relates to an absorption device and system for activity test, and the absorption device for activity test includes: absorption device body for being connected with activity test device, absorption device body includes at least two groups of absorption unit, and the adjacent two groups of absorption units are provided with the baffle, one end of baffle is connected with the top of absorption unit, and the other end has the clearance with the bottom of absorption unit, and the adjacent two groups of absorption units are communicated through the clearance, and the gas control part is provided on every absorption unit, and the gas control part is used for controlling the gas inlet and outlet of sulfur dioxide, the utility model discloses can effectively utilize the dilute sulfuric acid produced by drying and the fuming sulfuric acid produced by absorption, realizes the sustained use of sulfuric acid, reduces the dangerous waste production, sulfuric acid is strong acid material, and there is danger, and the absorption device for activity test provided by the utility model embodiment need not frequently replace sulfuric acid, reduces the personnel operation, reduces the potential safety hazard.

Description

Technical Field

[0001] This utility model relates to the field of sulfur dioxide absorption technology, and in particular to an absorption device and system for activity testing. Background Technology

[0002] The existing activity testing procedure for sulfur dioxide oxidation to sulfuric acid catalysts refers to HG / T 2089-2014, "Test Method for Activity of Sulfur Dioxide Oxidation to Sulfuric Acid Catalysts." This procedure includes multiple steps such as heating, heat resistance testing, cooling, and testing, and requires at least 15 hours.

[0003] The experimental raw gas is a mixture of SO2 and air. The air is typically supplied by an air compressor. Since compressed air requires dehydration, an absorption bottle is often added after the mixing tank, filled with 98.3% concentrated sulfuric acid to dry the mixture. Prolonged drying will reduce the sulfuric acid concentration, thus decreasing its drying efficiency and affecting the accuracy of the activity test.

[0004] According to standards, two absorption bottles containing 98.3% concentrated sulfuric acid are required after the reactor to absorb the generated sulfur trioxide. After absorbing sulfur trioxide for a long time, the concentrated sulfuric acid will turn into fuming sulfuric acid with a concentration exceeding 100%. At lower temperatures, it will crystallize, posing a risk of gas blockage and system pressure buildup.

[0005] Current methods typically involve replacing the sulfuric acid in the absorption bottle after the heat resistance process is complete. The removed sulfuric acid cannot be reused and must be treated as hazardous waste, resulting in resource waste and increasing the generation of hazardous waste.

[0006] Therefore, it is evident that the existing absorption devices for activity testing still have inconveniences and defects in terms of methods, manufacturing methods, processing methods, and use, and urgently need further improvement. To solve the problems of absorption devices for activity testing, relevant manufacturers have spared no effort in seeking solutions, but for a long time, no suitable design has been developed. Furthermore, there are no appropriate methods, manufacturing methods, processing methods, or structures for general methods, manufacturing methods, processing methods, and absorption devices for activity testing that can solve the aforementioned problems. This is clearly a problem that relevant industries urgently need to solve.

[0007] In view of the shortcomings of existing absorption devices for activity testing, the inventor, based on years of practical experience and professional knowledge in the design and manufacture of such products, and with the application of theoretical principles, actively researched and innovated to create a new absorption device and system for activity testing, which can improve upon existing absorption devices for activity testing and make them more practical. Through continuous research, design, and repeated trials and improvements, this invention, with genuine practical value, was finally created. Utility Model Content

[0008] The main objective of this invention is to overcome the shortcomings of existing absorption devices for activity testing and to provide a new absorption device and system for activity testing. The technical problem to be solved is to enable the effective utilization of dilute sulfuric acid generated during drying and fuming sulfuric acid generated during absorption, achieving continuous utilization of sulfuric acid and reducing hazardous waste generation. Sulfuric acid is a strong acid and poses a hazard. Using the absorption device for activity testing provided in this invention eliminates the need for frequent sulfuric acid replacement, reduces personnel operation, lowers safety hazards, and is therefore more practical and has industrial application value.

[0009] Another objective of this invention is to provide an absorption device for activity testing. The technical problem to be solved is to enable the effective utilization of dilute sulfuric acid generated during drying and fuming sulfuric acid generated during absorption, thereby achieving continuous utilization of sulfuric acid and reducing hazardous waste generation. Sulfuric acid is a strong acid and poses a hazard. Using the absorption device for activity testing provided in this invention eliminates the need for frequent replacement of sulfuric acid, reduces personnel operation, lowers safety hazards, and is therefore more suitable for practical application.

[0010] This utility model has significant advantages and beneficial effects compared with the prior art. As can be seen from the above technical solution, in order to achieve the aforementioned objectives, the main technical contents of this utility model are as follows:

[0011] This utility model proposes an absorption device for an activity testing test, comprising:

[0012] The absorption device body is used to connect to the activity testing device.

[0013] The absorption device body includes at least two sets of absorption units, and a partition is provided between two adjacent sets of absorption units. One end of the partition is connected to the top of the absorption unit, and the other end has a gap with the bottom of the absorption unit. The two adjacent sets of absorption units are connected through the gap.

[0014] Each absorption unit is equipped with a gas control unit, which is used to control the intake and exhaust of sulfur dioxide.

[0015] In one optional embodiment, the gas control unit includes an air inlet and an air outlet;

[0016] The air inlet and the air outlet are arranged side by side.

[0017] In one optional embodiment, the gas control unit further includes an air inlet pipe, the air inlet being connected to the air inlet pipe, the air inlet pipe extending to the bottom of the absorption unit and having a preset distance from the bottom of the absorption unit.

[0018] In one alternative embodiment, the other end of the partition is flush with the bottom of the absorption unit, where the air intake pipe is located at the bottom of the absorption unit.

[0019] In an optional embodiment, a concentration detection unit is further included, located within each absorption unit, for detecting the gas concentration within each absorption unit.

[0020] In one optional embodiment, the system further includes a control unit, which is provided on each absorption unit and is used to control the entry and exit of gas within the absorption unit.

[0021] In one optional embodiment, the gas control unit includes: an inlet and an outlet;

[0022] The absorption unit at the beginning of the absorption device body is provided with the feed inlet, and the absorption unit at the end is provided with the discharge outlet.

[0023] In one alternative embodiment, the feed inlet is located at the top of the absorption unit at the starting end, and the discharge outlet is located at the bottom of the absorption unit at the ending end.

[0024] In one optional embodiment, the gas control unit further includes a feed valve and a discharge valve, wherein the feed valve is disposed on the feed port and the discharge valve is disposed on the discharge port.

[0025] In one alternative embodiment, the body of the absorption device is made of glass.

[0026] On the other hand, an absorption system for an activity testing test is provided, comprising: an absorption device for an activity testing test as described in any of the preceding claims and a controller, wherein the controller is connected to the absorption device for the activity testing test.

[0027] As described above, this utility model relates to an absorption device and system for an activity testing test, comprising: an absorption device body for connection to an activity testing device; the absorption device body includes at least two sets of absorption units, with a partition between adjacent sets of absorption units, one end of the partition connected to the top of the absorption unit, and the other end having a gap with the bottom of the absorption unit, allowing adjacent sets of absorption units to communicate through the gap; each set of absorption units is equipped with a gas control unit for controlling the intake and exhaust of sulfur dioxide. This utility model can effectively utilize the dilute sulfuric acid produced during drying and the fuming sulfuric acid produced during absorption, achieving continuous utilization of sulfuric acid and reducing hazardous waste generation. Sulfuric acid is a strong acid and poses a hazard; using the absorption device for the activity testing test provided in this utility model embodiment eliminates the need for frequent replacement of sulfuric acid, reducing personnel operation and lowering safety hazards.

[0028] By employing the above technical solution, the absorption device and system for activity testing of this utility model have at least the following advantages:

[0029] The absorption device for activity testing provided in this embodiment of the invention can effectively utilize the dilute sulfuric acid produced during drying and the fuming sulfuric acid produced during absorption, achieving continuous utilization of sulfuric acid and reducing hazardous waste generation. Sulfuric acid is a strong acid and poses a hazard. Using the absorption device for activity testing provided in this embodiment of the invention eliminates the need for frequent replacement of sulfuric acid, reducing personnel intervention and safety hazards. Through the continuous mixing of dilute and concentrated sulfuric acid in the absorption device for activity testing provided in this embodiment of the invention, the sulfuric acid concentration can be maintained at a stable level, optimizing the drying effect of the raw material gas and the absorption effect of sulfur trioxide in the tail gas, resulting in more accurate catalyst activity testing results.

[0030] In summary, the novel absorption device and system for activity testing of this invention can effectively utilize the dilute sulfuric acid produced during drying and the fuming sulfuric acid produced during absorption, achieving continuous utilization of sulfuric acid and reducing hazardous waste generation. Sulfuric acid is a strong acid and poses a hazard. Using the absorption device for activity testing provided in this embodiment eliminates the need for frequent sulfuric acid replacement, reducing personnel intervention and safety hazards. It possesses numerous advantages and practical value, and is truly innovative as no similar designs have been publicly disclosed or used in the same category. It represents a significant improvement in both structure and function, a substantial technological advancement, and produces user-friendly and practical results. Compared to existing absorption devices and systems for activity testing, it offers several enhanced functions, making it more suitable for practical application and possessing broad industrial value. It is indeed a novel, progressive, and practical new design.

[0031] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0032] The specific structure of this utility model is given in detail in the following embodiments and accompanying drawings. Attached Figure Description

[0033] Appendix Figure 1 A schematic diagram of the absorption device for the activity testing provided in this embodiment of the utility model.

[0034] Figure label:

[0035] 1-Absorption device body, 2-Baffle plate, 3-Inlet, 4-Inlet valve, 5-Outlet, 6-Outlet valve, 7-Air inlet, 8-Air inlet valve, 9-Air outlet, 10-Exhaust valve. Detailed Implementation

[0036] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the following detailed description, in conjunction with the accompanying drawings and preferred embodiments, describes the specific implementation features and effects of the absorption device for activity testing proposed according to this utility model.

[0037] Please see Figure 1 As shown, the absorption device for the activity testing of this utility model in a preferred embodiment includes:

[0038] The absorption device body 1 is used to connect to the activity testing device.

[0039] The absorption device body 1 includes at least two sets of absorption units. A partition 2 is provided between two adjacent sets of absorption units. One end of the partition 2 is connected to the top of the absorption unit, and the other end has a gap with the bottom of the absorption unit. The two adjacent sets of absorption units are connected through the gap.

[0040] Each absorption unit is equipped with a gas control unit, which is used to control the intake and exhaust of sulfur dioxide.

[0041] The absorption device for activity testing provided in this embodiment of the invention has at least the following beneficial effects:

[0042] The absorption device for activity testing provided in this embodiment of the invention can effectively utilize the dilute sulfuric acid produced during drying and the fuming sulfuric acid produced during absorption, achieving continuous utilization of sulfuric acid and reducing hazardous waste generation. Sulfuric acid is a strong acid and poses a hazard. Using the absorption device for activity testing provided in this embodiment of the invention eliminates the need for frequent replacement of sulfuric acid, reducing personnel intervention and safety hazards. Through the continuous mixing of dilute and concentrated sulfuric acid in the absorption device for activity testing provided in this embodiment of the invention, the sulfuric acid concentration can be maintained at a stable level, optimizing the drying effect of the raw material gas and the absorption effect of sulfur trioxide in the tail gas, resulting in more accurate catalyst activity testing results.

[0043] In one optional embodiment, the number of absorption units can be increased as needed. For example, the number of absorption units in this embodiment can be three, four, five, or six, etc. The specific number can be increased as needed. This embodiment does not limit the number of absorption units.

[0044] Furthermore, the absorption unit can also be formed by setting a partition 2 inside the absorption device body 1. That is, partitions 2 can be set in the absorption device as needed, and the number of absorption units is determined by the number of partitions 2. The partition 2 can be a plate parallel to the inside of the absorption device body 1, or it can be an arc-shaped or elliptical partition 2. The shape of the partition 2 is not limited to this in the embodiments of the present invention.

[0045] In one optional embodiment, the gas control unit includes an air inlet 7 and an air outlet 9; the air inlet 7 and the air outlet 9 are arranged side by side.

[0046] In one optional embodiment, the gas control unit further includes an air inlet pipe, an air inlet 7 connected to the air inlet pipe, the air inlet pipe extending to the bottom of the absorption unit and having a preset distance from the bottom of the absorption unit.

[0047] The preset distance between the air intake pipe and the bottom of the absorption unit can be 1 / 10 or 1 / 5 of the distance between the top and bottom of the absorption unit.

[0048] In one alternative embodiment, the other end of the partition 2 is flush with the bottom of the absorption unit at the same position as the intake pipe at the bottom of the absorption unit.

[0049] The bottom of the absorption unit provided in this embodiment of the utility model is at the same position as the air inlet pipe in the absorption unit, that is, the other end of the partition 2 is flush with the bottom of the absorption unit and the bottom of the air inlet pipe in the absorption unit.

[0050] In an optional embodiment, a concentration detection unit is further included, located within each absorption unit, for detecting the gas concentration within each absorption unit.

[0051] By setting up a concentration detection unit, the concentration of gas within the absorption unit can be monitored in real time. For example, a sulfur dioxide sensor can be installed in each absorption unit to monitor the concentration of sulfur dioxide in real time. When the concentration of sulfur dioxide is lower than a certain limit, the outlet 9 of the absorption device of the absorption unit is opened to release sulfur dioxide. This allows for real-time control of the sulfur dioxide concentration, thereby ensuring the accuracy of the detection results.

[0052] In one optional embodiment, it further includes a control unit, wherein each absorption unit is provided with a control unit, the control unit being used to control the entry and exit of gas within the absorption unit.

[0053] For example, the control unit may include control valves, with control valves provided at the air inlet 7 and air outlet 9 of each absorption unit to control the closing or opening of the air inlet 7 and air outlet 9. Further, the control valves may include an intake valve 8 provided on the air inlet 7 and an exhaust valve 10 provided on the air outlet 9.

[0054] In one alternative embodiment, the gas control unit includes an inlet 3 and an outlet 5.

[0055] The absorption unit at the beginning of the absorption device body 1 is provided with a feed inlet 3, and the absorption unit at the end is provided with a discharge outlet 5.

[0056] In one alternative embodiment, the feed inlet 3 is located at the top of the absorption unit at the beginning, and the discharge outlet 5 is located at the bottom of the absorption unit at the end.

[0057] In one optional embodiment, the gas control unit further includes a feed valve 4 and a discharge valve 6, wherein the feed valve 4 is disposed on the feed inlet 3 and the discharge valve 6 is disposed on the discharge outlet 5.

[0058] In one alternative embodiment, the body 1 of the absorption device is made of glass.

[0059] The device provided in this embodiment of the present invention includes the following steps in use:

[0060] S1, close the discharge valve 6 of the absorption device body 1 and open the feed valve 4.

[0061] S2, add an appropriate amount of sulfuric acid into the chamber of the absorption device body 1 through the feed inlet 3.

[0062] S3, close the feed valve 4, and connect the absorption device body 1 to the activity testing device.

[0063] S4, open the intake valve 8 and exhaust valve 10 of the corresponding number of absorption units as needed.

[0064] S5, Conduct catalyst activity testing according to standards.

[0065] S6, after the sulfuric acid in the main body 1 of the absorption device is too much or the sulfuric acid concentration is too high or too low and needs to be replaced, the discharge valve 6 is opened to discharge the sulfuric acid without conducting an activity test. After the sulfuric acid is discharged, the discharge valve 6 is closed and the feed valve 4 is opened to add new sulfuric acid.

[0066] Compared to methods using multiple absorption bottles, the device provided by this invention is simple to operate, has lower costs, and enables the reuse of sulfuric acid, reducing waste generation. In practical use, this invention demonstrates more stable catalyst activity test results compared to existing methods, with less fluctuation and no significant changes over long-term use, exhibiting good repeatability.

[0067] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the methods and techniques disclosed above without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An absorption device for an activity testing test, characterized in that, include: The absorption device body is used to connect to the activity testing device. The absorption device body includes at least two sets of absorption units, and a partition is provided between two adjacent sets of absorption units. One end of the partition is connected to the top of the absorption unit, and the other end has a gap with the bottom of the absorption unit. The two adjacent sets of absorption units are connected through the gap. Each absorption unit is equipped with a gas control unit, which is used to control the intake and exhaust of sulfur dioxide.

2. The absorption device for activity testing according to claim 1, characterized in that, The gas control unit includes: an air inlet and an air outlet; The air inlet and the air outlet are arranged side by side.

3. The absorption device for activity testing according to claim 2, characterized in that, The gas control unit further includes an air inlet pipe, the air inlet being connected to the air inlet pipe, the air inlet pipe extending to the bottom of the absorption unit and having a preset distance from the bottom of the absorption unit.

4. The absorption device for activity testing according to claim 3, characterized in that, The other end of the partition is flush with the bottom of the absorption unit and the bottom of the air intake pipe.

5. The absorption device for activity testing according to claim 1, characterized in that, It also includes a concentration detection unit, which is located in each absorption unit and is used to detect the gas concentration in each absorption unit.

6. The absorption device for activity testing according to claim 1, characterized in that, Also includes: The control unit is provided on each absorption unit and is used to control the entry and exit of gas in the absorption unit.

7. The absorption device for activity testing according to claim 1, characterized in that, The gas control unit includes: an inlet and an outlet; The absorption unit at the beginning of the absorption device body is provided with the feed inlet, and the absorption unit at the end is provided with the discharge outlet.

8. The absorption device for activity testing according to claim 7, characterized in that, The feed inlet is located at the top of the absorption unit at the starting end, and the discharge outlet is located at the bottom of the absorption unit at the ending end.

9. The absorption device for the activity testing according to claim 7, characterized in that, The gas control unit further includes a feed valve and a discharge valve, wherein the feed valve is disposed on the feed port and the discharge valve is disposed on the discharge port.

10. The absorption device for the activity testing according to claim 7, characterized in that, The body of the absorption device is made of glass.

11. An absorption system for an activity testing test, characterized in that, include: The absorption device and controller for the activity testing according to any one of claims 1-10, wherein the controller is connected to the absorption device for the activity testing.

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