Matched ventilation system for electrolytic bath in laboratory

Abstract

The utility model discloses a laboratory electrolytic bath matching ventilation system which comprises a main air pipe, detachable waste gas collecting branch pipes, an induced draft fan and a tail gas treatment device, the detachable waste gas collecting branch pipes are arranged on the two sides of the front end of the main air pipe, the tail end of the main air pipe is connected to a left side inlet of the tail gas treatment device, and the induced draft fan is arranged between the main air pipe and the tail gas treatment device; the detachable waste gas collecting branch pipe further comprises a fixed branch pipe, a gas collecting hose, a branch pipe connecting buckle and a gas collecting hood; the tail gas treatment device further comprises a tail gas absorption barrel, a uniform gas discharging pipe and a discharging pipe. According to the utility model, the side air pipes are detachable, and the number of the side air pipes can be adjusted according to the number of electrolytic cells in the experiment process, so that the applicability of the system under different experiment use conditions is met; a waste gas treatment function is added, and collected waste gas can be discharged after being treated, so that the usability and the safety of the system are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ventilation equipment, and particularly relates to a ventilation system supporting an electrolytic cell in a laboratory. Background Art

[0002] During the use of an electrolytic cell, the generated gases and vapors need to be discharged in time to ensure the safety and comfort of the working environment. Therefore, it is necessary to design and develop a ventilation system supporting the electrolytic cell. This system should be able to effectively collect and process the generated gases and vapors to maintain good ventilation and cleanliness of the working environment.

[0003] In the prior art, such as a practical electrolytic cell waste gas collection device disclosed in Chinese Patent (CN220259039U), it includes a main suction air pipe, a side suction air pipe is installed on the outer wall of the main suction air pipe, and a horn-shaped suction air inlet is installed on the outer wall of the side suction air pipe.

[0004] This method has the following defects: First, in a laboratory, the number and positions of electrolytic cells will change with the experimental scenarios. In the prior art, the number of side suction air pipes cannot change with the number of electrolytic cells, lacking the applicability to meet various use conditions in the laboratory; Second, it lacks the function of treating tail gas and cannot directly treat and discharge the collected tail gas.

[0005] Therefore, this article provides a ventilation system supporting an electrolytic cell in a laboratory. Content of the Utility Model

[0006] To solve the above technical problems, the utility model discloses a ventilation system supporting an electrolytic cell in a laboratory. The side air pipes are detachable, and the number of side air pipes can be adjusted according to the number of electrolytic cells during the experiment, meeting the applicability of the system under different experimental use conditions; the waste gas treatment function is added, and the collected waste gas can be treated and discharged, improving the usability and safety of the system.

[0007] To achieve the above technical effects, the utility model provides a ventilation system supporting an electrolytic cell in a laboratory, which includes a main air pipe, a detachable waste gas collection branch pipe, an induced draft fan, and a tail gas treatment device. The detachable waste gas collection branch pipe is arranged on both sides of the front end of the main air pipe. The end of the main air pipe is connected to the left inlet of the tail gas treatment device, and an induced draft fan is arranged between the main air pipe and the tail gas treatment device; the detachable waste gas collection branch pipe further includes a fixed branch pipe, a gas collection hose, a branch pipe connection buckle, and a gas collection hood. The front end of the fixed branch pipe is connected to both sides of the end of the main air pipe, and the rear end of the fixed branch pipe is hermetically connected to the front end of the gas collection hose through the branch pipe connection buckle. The branch pipe connection buckles are respectively arranged on the side surface of the end of the fixed branch pipe and the side surface of the front end of the gas collection hose. The gas collection hood is arranged at the end of the gas collection hose; the tail gas treatment device further includes a tail gas absorption barrel, a uniform gas discharge pipe, and a discharge pipe. The uniform gas discharge pipe is arranged inside the tail gas absorption barrel, and the discharge pipe is arranged above the tail gas absorption barrel.

[0008] Preferably, a shut-off valve is also provided on the fixed branch pipe.

[0009] Preferably, the branch pipe connection buckle further includes a fixed slide groove, a limiting mechanism, and a connecting slider. The fixed slide groove is located on the side of the end of the fixed branch pipe, the limiting mechanism is located on the side of the fixed slide groove, and the connecting slider is located on the side of the front end of the gas collecting hose. The connecting slider can slide in the fixed slide groove.

[0010] Preferably, the limiting mechanism further includes a housing, a connecting rod a, a spring, a connecting rod b, and a buckle. The connecting rod a is located above the spring, the spring is located at the bottom of the inner side of the housing, the middle part of the connecting rod a is hinged to the front end of the connecting rod b, the middle part of the connecting rod b is connected to the right side pivot of the housing, and a buckle is provided at the lower end of the connecting rod b.

[0011] Preferably, the connecting slider is provided with a groove corresponding to the buckle.

[0012] Preferably, a limit stop is provided on the connecting rod a.

[0013] Preferably, the uniform venting pipe further includes an exhaust main pipe and exhaust branch pipes, with the exhaust branch pipes staggered on both sides of the exhaust main pipe.

[0014] Preferably, an exhaust port is provided on the lower side of the exhaust branch pipe.

[0015] Preferably, the exhaust pipe is also equipped with a removable exhaust gas filter.

[0016] Preferably, the removable exhaust filter is provided with a replaceable filter element, and the filter element also includes activated carbon and silica gel.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] The device includes a main duct, detachable exhaust gas collection branch pipes, an induced draft fan, and an exhaust gas treatment device. The number of side ducts can be adjusted according to the number of electrolytic cells used in the laboratory, which meets the applicability of the system under different experimental conditions. The exhaust gas treatment device can treat the collected exhaust gas before discharge, which improves the availability and safety of the system. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 yes Figure 1 A partial schematic diagram of 'a' in the diagram;

[0021] Figure 3 This is a schematic diagram of the limiting mechanism in this utility model;

[0022] Figure 4 This is a schematic diagram of the exhaust gas treatment device in this utility model;

[0023] Figure 5 yes Figure 4 A partial schematic diagram of b in the middle;

[0024] Figure 6 yes Figure 4 A partial schematic diagram of c in the middle;

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Main duct; 2. Exhaust fan; 3. Exhaust gas treatment device; 4. Fixed branch pipe; 5. Gas collection hose; 6. Branch pipe connection buckle; 7. Gas collection hood; 8. Exhaust gas absorption tank; 9. Uniform venting pipe; 10. Discharge pipe; 11. Shut-off valve; 12. Fixed slide; 13. Connecting slider; 14. Housing; 15. Connecting rod a; 16. Spring; 17. Connecting rod b; 18. Buckle; 19. Limiting clip; 20. Exhaust main pipe; 21. Exhaust branch pipe; 22. Exhaust port; 23. Removable filter; 24. Activated carbon; 25. Silica gel. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] like Figures 1 to 4 As shown, the prior art in this embodiment has the following problems: The inventors found the following defects in the prior art: First, in the laboratory, the number of electrolytic cells will change with the change of experimental scenario. In the prior art, the number of side suction pipes cannot change with the number of electrolytic cells, and lacks applicability to meet various laboratory usage conditions; Second, it lacks the function of treating exhaust gas and cannot directly treat the collected exhaust gas before discharging it.

[0029] Therefore, the inventor provides a ventilation system for a laboratory electrolytic cell, including a main duct 1, a detachable waste gas collection branch pipe, an induced draft fan 2, and a tail gas treatment device 3. The detachable waste gas collection branch pipe is located on both sides of the front end of the main duct 1, and the end of the main duct 1 is connected to the left inlet of the tail gas treatment device 3. An induced draft fan 2 is installed between the main duct 1 and the tail gas treatment device 3. The detachable waste gas collection branch pipe also includes a fixed branch pipe 4, a gas collecting hose 5, a branch pipe connecting buckle 6, and a gas collecting hood 7. The front end of the fixed branch pipe 4 is connected to both sides of the end of the main duct 1, and the rear end of the fixed branch pipe 4 is sealed to the front end of the gas collecting hose 5 through the branch pipe connecting buckle 6. The branch pipe connecting buckle 6 is respectively located on the side of the end of the fixed branch pipe 4 and the side of the front end of the gas collecting hose 5. The gas collecting hood 7 is located at the end of the gas collecting hose 5. The tail gas treatment device 3 also includes a tail gas absorption tank 8, a uniform venting pipe 9, and an exhaust pipe 10. The uniform venting pipe 9 is located inside the tail gas absorption tank 8, and the exhaust pipe 10 is located above the tail gas absorption tank 8.

[0030] Using the above scheme, the number of detachable waste gas collection branch pipes can be adjusted according to the number of electrolytic cells in the laboratory environment before the system starts working. Excess gas collection hoses 5 can be removed from fixed branch pipes 4 through branch pipe connection clips 6. At the same time, new gas collection hoses 5 can be installed at the locations where electrolytic cells are added, thus meeting the applicability of the system under different operating conditions. Waste gas is collected into the main air duct 1 through the detachable waste gas collection branch pipes, and then introduced into the uniform exhaust pipe 9 through the exhaust fan 2. The waste gas is evenly discharged into the tail gas absorption tank 8 through the uniform exhaust pipe 9. The alkaline solution in the tail gas absorption tank 8 absorbs and treats the acid mist in the waste gas, and then the treated waste gas is discharged through the discharge pipe 10, improving the availability and safety of the system.

[0031] Furthermore, a shut-off valve 11 is also installed on the fixed branch pipe 4;

[0032] When increasing or decreasing the number of gas collection hoses 5, the on / off state of the fixed branch pipe 4 can be controlled by the shut-off valve 11.

[0033] Furthermore, the branch pipe connection buckle 6 also includes a fixed slide groove 12, a limiting mechanism, and a connecting slider 13. The fixed slide groove 12 is located on the side of the end of the fixed branch pipe 4, the limiting mechanism is located on the side of the fixed slide groove 12, and the connecting slider 13 is located on the side of the front end of the gas collecting hose 5. The connecting slider 13 can slide in the fixed slide groove 12.

[0034] When adding the gas collection hose 5, the connecting slider 13 on the gas collection hose 5 is screwed into the connecting groove on the fixed branch pipe 4. The limiting mechanism locks the connecting slider 13 to prevent it from shifting in the fixed groove 12. When removing the gas collection hose 5, the limiting mechanism is controlled to release the connecting slider 13, and the connecting slider 13 is screwed out from the connecting groove in the opposite direction to complete the removal of the gas collection hose 5.

[0035] Furthermore, the limiting mechanism also includes a housing 14, a connecting rod a15, a spring 16, a connecting rod b17, and a buckle 18. The connecting rod a15 is located above the spring 16, the spring 16 is located at the bottom of the inner side of the housing 14, the middle part of the connecting rod a15 is hinged to the front end of the connecting rod b17, the middle part of the connecting rod b17 is connected to the right side pivot of the housing 14, and the buckle 18 is located below the end of the connecting rod b17.

[0036] When installing the gas collection hose 5, the spring 16 pushes the connecting rod a15 upward, and the connecting rod a15 drives the front end of the connecting rod b17 to press down the end of the connecting rod b17 around the middle of the connecting rod b17. The buckle 18 at the lower end of the connecting rod b17 locks the connecting slider 13, so that the connecting slider 13 is fixed in the fixed slide groove 12. When removing the gas collection hose 5, the connecting rod a15 is pressed down, and the connecting rod a15 drives the connecting rod b17 to lift up. The buckle 18 releases the connecting slider 13, and then the gas collection hose 5 is unscrewed and removed.

[0037] Furthermore, the connecting slider 13 is provided with a groove corresponding to the buckle 18;

[0038] The groove (not shown in the figure) and the buckle 18 can fix the connecting slider 13.

[0039] Furthermore, a limit stop 18 is provided on the connecting rod a15;

[0040] The limit card 18 prevents the connecting rod a15 from being ejected from the outer shell 14 by the spring 16.

[0041] Furthermore, the uniform venting pipe 9 also includes an exhaust main pipe 20 and an exhaust branch pipe 21, with the exhaust branch pipes 21 staggered on both sides of the exhaust main pipe 20;

[0042] The exhaust gas is transported from the exhaust main pipe 20 to the exhaust branch pipe 21, and then discharged from the exhaust branch pipe 21 into the tail gas absorption tank 8, which disperses the airflow, ensures the quality of exhaust gas treatment, and improves the efficiency of exhaust gas treatment.

[0043] Furthermore, an exhaust port 22 is provided on the lower side of the exhaust branch pipe 21;

[0044] The vent hole 22 on the lower side can prevent the solution from accumulating in the lower part of the vent branch pipe 21 when the side vent hole 22 is provided.

[0045] Furthermore, a removable exhaust filter 23 is also installed on the exhaust pipe 10;

[0046] Since the exhaust gas can absorb 95% of the acidic substances after being absorbed by the alkaline solution in the exhaust gas absorption tank 8, a detachable exhaust gas filter 23 is installed to treat the small amount of acidic gas contained in the exhaust gas, thereby improving the absorption rate of acidic gas. The filter can also be removed and replaced.

[0047] Furthermore, the removable exhaust filter 23 is equipped with a replaceable filter element, and the filter element also includes activated carbon 24 and silica gel 25;

[0048] The activated carbon 24 is located in the upper and lower layers to absorb residual acidic gases and other harmful gases in the exhaust gas, while the silica gel 25 is placed in the middle to absorb moisture in the exhaust gas. Moreover, the activated carbon 24 and silica gel 25 can be replaced and reused.

[0049] In summary, the device includes a main duct 1, a detachable waste gas collection branch pipe, an induced draft fan 2, and a tail gas treatment device 3. The number of side ducts can be adjusted according to the number of electrolytic cells in the laboratory, which meets the applicability of the system under different experimental conditions. The tail gas treatment device 3 can treat the collected waste gas before discharge, which improves the availability and safety of the system.

[0050] The working principle of this utility model:

[0051] The following situations occurred in the laboratory at that time: 1. Before the experiment began, the number of electrolytic cells needed in the laboratory was greater than the number of existing electrolytic cells; 2. During the experiment, some electrolytic cells were added midway; 3. A single gas collection hose 5 could not meet the requirements for collecting the waste gas from the electrolytic cells.

[0052] These situations necessitate increasing the number of gas collection hoses 5. When this happens, the operator needs to install new gas collection hoses 5. The connecting slider 13 on the gas collection hose 5 can be aligned with the connecting groove on the fixed branch pipe 4. The connecting slider 13 is then screwed into the connecting groove. At this time, the spring 16 in the limiting mechanism pushes the connecting rod a15 upward. The connecting rod a15 is equipped with a limiting clip 18 to prevent the connecting rod a15 from popping out of the housing 14. The connecting rod a15 drives the front end of the connecting rod b17 to press down the buckle 18 at the end of the connecting rod b17 around the middle of the connecting rod b17. When the connecting slider 13 enters the connecting groove, the connecting slider 13 lifts up the buckle 18 until the connecting slider 13 is installed. The buckle 18 is then engaged in the groove on the connecting slider 13. The spring 16 continuously applies an upward force to the connecting rod a15, and the connecting rod b17 presses the buckle 18 downward into the groove, thus fixing the connecting slider 13 in the connecting groove. After that, the shut-off valve 11 on the fixed support is opened, and the newly added gas collection hose 5 is installed.

[0053] When the following situations occur in the laboratory: 1. Before the experiment begins, the number of electrolytic cells required in the laboratory is less than the number of existing electrolytic cells; 2. During the experiment, some electrolytic cells have already been used; 3. The arrangement of the gas collecting hose 5 affects the smooth progress of the experiment.

[0054] These situations necessitate reducing the number of gas collection hoses 5. In such cases, the operator must remove the gas collection hoses 5. First, close the shut-off valve 11 on the fixed branch pipe 4, press down the connecting rod a15. The connecting rod a15 presses down, causing the connecting rod b17 to lift up. The buckle 18 at the end of the connecting rod b17 lifts off the groove on the connecting slider 13. Release the connecting slider 13, and then unscrew the gas collection hose 5 in the opposite direction to remove it. This completes the removal of the gas collection hose 5. The detachable exhaust gas collection branch pipe can adjust the number of side air pipes according to the number of electrolytic cells, satisfying the applicability of the system under different operating conditions.

[0055] After the gas collection hose 5 is installed and removed, the gas collection hood 7 can be adjusted through the gas collection hose 5 so that it covers the electrolytic cell. Then, the induced draft fan 2 is started, and the exhaust gas is drawn into the gas collection hose 5 from the gas collection hood 7, and then into the main air duct 1. From the main air duct 1, it passes through the induced draft fan 2 and enters the exhaust main duct 20 of the exhaust gas treatment device 3. The exhaust gas in the exhaust main duct 20 is evenly distributed into the exhaust branch duct 21, and discharged into the exhaust gas absorption tank 8 through the exhaust hole 22 at the bottom of the exhaust branch duct 21. During the upward process, the exhaust gas is absorbed by the alkaline treatment liquid in the exhaust gas absorption tank 8. The acidic mist is finally treated by the removable exhaust gas filter 23 and then discharged through the exhaust pipe 10. After the exhaust gas enters the removable exhaust gas filter 23 and is filtered by the upper and lower layers of activated carbon 24 and the middle silica gel 25, the residual acidic gas, other harmful gases and moisture in the exhaust gas can be removed, reducing the impact of exhaust gas on the environment. Moreover, the removable exhaust gas filter 23 can be removed and replaced, and the filter elements of activated carbon 24 and silica gel 25 in the filter can also be replaced and reused, adding exhaust gas treatment function to the entire system and improving the availability and safety of the system.

[0056] At this point, the entire system's treatment process for the exhaust gas is complete.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ventilation system for a laboratory electrolytic cell, comprising a main duct (1), a detachable waste gas collection branch pipe, an induced draft fan (2), and a tail gas treatment device (3), wherein the detachable waste gas collection branch pipe is arranged on both sides of the front end of the main duct (1), the end of the main duct (1) is connected to the left inlet of the tail gas treatment device (3), and an induced draft fan (2) is arranged between the main duct (1) and the tail gas treatment device (3), characterized in that: The detachable exhaust gas collection branch pipe also includes a fixed branch pipe (4), a gas collection hose (5), a branch pipe connecting buckle (6), and a gas collection hood (7). The front end of the fixed branch pipe (4) is connected to both sides of the end of the main air pipe (1). The rear end of the fixed branch pipe (4) is sealed to the front end of the gas collection hose (5) through the branch pipe connecting buckle (6). The branch pipe connecting buckle (6) is respectively set on the side of the end of the fixed branch pipe (4) and the side of the front end of the gas collection hose (5). The gas collection hood (7) is set at the end of the gas collection hose (5). The exhaust gas treatment device (3) also includes an exhaust gas absorption tank (8), a uniform venting pipe (9), and an exhaust pipe (10). The uniform venting pipe (9) is set inside the exhaust gas absorption tank (8), and the exhaust pipe (10) is set above the exhaust gas absorption tank (8).

2. The ventilation system for a laboratory electrolytic cell according to claim 1, characterized in that: The fixed branch pipe (4) is also equipped with a shut-off valve (11).

3. The ventilation system for a laboratory electrolytic cell according to claim 1, characterized in that: The branch pipe connection buckle (6) also includes a fixed slide groove (12), a limiting mechanism, and a connecting slider (13). The fixed slide groove (12) is located on the side of the end of the fixed branch pipe (4), the limiting mechanism is located on the side of the fixed slide groove (12), and the connecting slider (13) is located on the side of the front end of the gas collection hose (5). The connecting slider (13) can slide in the fixed slide groove (12).

4. The ventilation system for a laboratory electrolytic cell according to claim 3, characterized in that: The limiting mechanism also includes a housing (14), a connecting rod a (15), a spring (16), a connecting rod b (17), and a buckle (18). The connecting rod a (15) is located above the spring (16), the spring (16) is located at the bottom of the inner side of the housing (14), the middle part of the connecting rod a (15) is hinged to the front end of the connecting rod b (17), the middle part of the connecting rod b (17) is connected to the right side pivot of the housing (14), and a buckle (18) is provided below the end of the connecting rod b (17).

5. A ventilation system for a laboratory electrolytic cell according to claim 3, characterized in that: The connecting slider (13) is provided with a groove corresponding to the buckle (18).

6. A ventilation system for a laboratory electrolytic cell according to claim 4, characterized in that: A limit stop (19) is provided on the connecting rod a (15).

7. The ventilation system for a laboratory electrolytic cell according to claim 1, characterized in that: The uniform venting pipe (9) also includes an exhaust main pipe (20) and an exhaust branch pipe (21), with the exhaust branch pipe (21) staggered on both sides of the exhaust main pipe (20).

8. A ventilation system for a laboratory electrolytic cell according to claim 7, characterized in that: An exhaust port (22) is provided on the lower side of the exhaust branch pipe (21).

9. A ventilation system for a laboratory electrolytic cell according to claim 1, characterized in that: The exhaust pipe (10) is also equipped with a removable exhaust gas filter (23).

10. A ventilation system for a laboratory electrolytic cell according to claim 9, characterized in that: The removable exhaust filter (23) is provided with a replaceable filter element, and the filter element also includes activated carbon (24) and silica gel (25).

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