Performance detection device for special corrosion-resistant ventilating duct
By designing a special corrosion-resistant ventilation duct performance detection device to simulate the volatile environment of organic solvents and acids, the problem of difficult to detect the corrosion resistance of ventilation ducts in actual use in the prior art is solved, and the accurate verification of the performance of ventilation ducts is achieved and long-term stability guarantee.
Patent Information
- Application Number
- CN202420326956.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-21
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-02-21
AI Technical Summary
The prior art is difficult to effectively detect the performance of corrosion-resistant ventilation ducts in actual use, and direct immersion detection is difficult to simulate the volatile organic solvents and acid liquid environments encountered in chemical laboratories.
A special corrosion-resistant ventilation duct performance detection device was designed, including a detection box, ventilation duct sample fixing device, corrosion-resistant pump, solenoid valve and electric heating plate. By simulating the volatile environment of organic solvents and acids, the ventilation ducts are simulated in use. In the corrosion state, the hose and pipe opening fixing blocks ensure the sealed connection between the sample and gas, and the performance of the ventilation duct is detected.
It can easily simulate the corrosion environment of ventilation ducts in use, verify their acid and organic solvent resistance, and ensure their stability and safety in long-term use.
Smart Images
Figure CN222337028U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of ventilation pipeline detection, in particular to a special corrosion-resistant ventilation pipeline performance detection device. Background Art
[0002] Chemistry is one of the important disciplines at present. In chemical research laboratories and production workshops, a large amount of organic solvents and highly corrosive and volatile acids are often used. Therefore, ventilation equipment is needed to maintain the environmental health of laboratories, workshops and other operating places to ensure the health of relevant chemical personnel. Since the air taken away by ventilation equipment often contains a large amount of volatile organic solvents to volatilize acids, its ventilation ducts cannot use conventional ventilation ducts, but must choose special ventilation ducts with strong corrosion resistance. At present, most of the ventilation ducts with strong corrosion resistance are round tubes. However, in order to ensure that the ventilation ducts with strong corrosion resistance can be used for a long time in actual use, their strong corrosion resistance needs to be tested in advance to ensure that they can be used stably for a long time. The current testing method is mostly to immerse them directly in highly corrosive organic solvents or acids for testing. However, due to the organic solvents and acid molecules that evaporate into the air through the ventilation pipes, it is difficult to simulate their actual use status by direct immersion testing. Utility Model Content
[0003] The utility model provides a special corrosion-resistant ventilation duct performance detection device, which is used to solve the defects in the prior art.
[0004] The utility model is realized through the following technical solutions:
[0005] A special corrosion-resistant ventilation duct performance testing device comprises a testing box, a box door is arranged on the front side of the testing box, an observation window and a handle are arranged on the box door, a ventilation duct sample fixing device is arranged in the testing box, one side of the testing box is connected with one end of an inlet pipe, the other side of the testing box is connected with one end of an outlet pipe, one end of the inlet pipe is connected with one end of an air intake hose, one end of the outlet pipe is connected with one end of an air outlet hose, one end of the air intake hose and one end of the air outlet hose are provided with a truncated cone-shaped pipe mouth fixing block made of corrosion-resistant rubber material, a cavity is arranged in the pipe mouth fixing block, and the cavity can be connected with the air intake hose or an air outlet hose, the other end of the inlet pipe is respectively connected to one side of the top of the organic solvent tank and the volatile acid tank through a pipeline, a corrosion-resistant pump is respectively arranged on the connecting pipeline of the other end of the inlet pipe and the organic solvent tank and the volatile acid tank, the other end of the outlet pipe is respectively connected to the other side of the top of the organic solvent tank and the volatile acid tank through a pipeline, a corrosion-resistant solenoid valve is respectively arranged on the connecting pipeline of the other end of the inlet pipe and the organic solvent tank and the volatile acid tank and the connecting pipeline of the other end of the outlet pipe and the organic solvent tank and the volatile acid tank, and an electric heating plate is respectively arranged on the bottom of the organic solvent tank and the volatile acid tank.
[0006] A special corrosion-resistant ventilation duct performance testing device as described above, the ventilation duct sample fixing device includes two vertical rods, the bottom of the vertical rods is fixedly connected to the bottom of the test box, the top of the vertical rods is connected to the top of the first arc plate, a second arc plate is arranged above the first arc plate, the first arc plate can be buckled with the second arc plate, fixing ears are arranged on both sides of the first arc plate and the second arc plate, and the fixing ears on the same side of the first arc plate and the second arc plate are fixed by bolts.
[0007] In the special corrosion-resistant ventilation duct performance detection device as described above, the vertical rod is a telescopic rod structure.
[0008] As described above, in a special corrosion-resistant ventilation duct performance detection device, the other end of the inlet pipe is connected to the ventilation pipe, a high-pressure air pump is provided on the ventilation pipe, the other end of the outlet pipe is connected to the top of the waste liquid recovery tank through a pipeline, and a ventilation solenoid valve is respectively provided on the ventilation pipe and the connecting pipeline between the outlet pipe and the waste liquid recovery tank.
[0009] As described above, a special corrosion-resistant ventilation duct performance detection device, the top of the detection box is connected to the top of the waste liquid recovery tank through a pipeline, a negative pressure pump is arranged on the connecting pipeline between the detection box and the waste liquid recovery tank, an air inlet pipe is arranged on the top of the detection box, and an air inlet valve is arranged on the air inlet pipe.
[0010] The advantage of the utility model is that the utility model can conveniently simulate a large amount of corrosive organic solvents or acid liquid volatilizing through the corrosion-resistant ventilation duct, thereby verifying the acid resistance and organic solvent corrosion resistance of the corrosion-resistant ventilation duct, thereby ensuring the corrosion resistance of the corresponding product and ensuring its long-term stable use during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0012] Figure 1 It is a schematic diagram of the structure of the utility model;
[0013] Figure 2 It is a schematic diagram of the detection box result of the utility model;
[0014] Figure 3 It is a schematic structural diagram of the vertical rod, the first curved plate and the second curved plate of the present invention.
[0015] Figure numerals: 1. detection box; 2. box door; 3. observation window; 4. handle; 5. inlet pipe; 6. outlet pipe; 7. air inlet hose; 8. air outlet hose; 9. pipe mouth fixing block; 10. cavity; 11. organic solvent box; 12. volatile acid box; 13. corrosion-resistant pump; 14. corrosion-resistant solenoid valve; 15. electric heating plate; 16. vertical rod; 17. first arc plate; 18. second arc plate; 19. fixing ear; 20. bolt; 21. ventilation pipe; 22. high-pressure air pump; 23. waste liquid recovery box; 24. ventilation solenoid valve; 25. negative pressure pump; 26. air inlet pipe; 27. air inlet valve. DETAILED DESCRIPTION
[0016] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] A special corrosion-resistant ventilation duct performance detection device comprises a detection box 1, a box door 2 is arranged on the front side of the detection box 1, an observation window 3 and a handle 4 are arranged on the box door 2, a ventilation duct sample fixing device is arranged in the detection box 1, one side of the detection box 1 is connected with one end of an inlet pipe 5, and the other side of the detection box 1 is connected with one end of an outlet pipe 6, one end of the inlet pipe 5 is connected with one end of an air intake hose 7, and one end of the outlet pipe 6 is connected with one end of an air outlet hose 8, one end of the air intake hose 7 and one end of the air outlet hose 8 are provided with a truncated cone-shaped pipe mouth fixing block 9 made of corrosion-resistant rubber material, a cavity 10 is arranged in the pipe mouth fixing block 9, and the cavity 10 can be connected with the air intake hose 7 or the air outlet hose 8 The other end of the inlet pipe 5 is connected with one side of the top of the organic solvent tank 11 and the volatile acid tank 12 respectively through a pipeline, a corrosion-resistant pump 13 is respectively arranged on the connecting pipeline between the other end of the inlet pipe 5 and the organic solvent tank 11 and the volatile acid tank 12, the other end of the outlet pipe 6 is connected with the other side of the top of the organic solvent tank 11 and the volatile acid tank 12 respectively through a pipeline, a corrosion-resistant solenoid valve 14 is respectively arranged on the connecting pipeline between the other end of the inlet pipe 5 and the organic solvent tank 11 and the volatile acid tank 12 and the connecting pipeline between the other end of the outlet pipe 6 and the organic solvent tank 11 and the volatile acid tank 12, and an electric heating plate 15 is respectively arranged on the bottom of the organic solvent tank 11 and the volatile acid tank 12.When the utility model is used, a section of cylindrical ventilation duct sample is taken, and it is fixed by the ventilation duct sample fixing device, and then the ports at both ends of the ventilation duct sample are sealed and connected with the air inlet hose 7 and the air outlet hose 8 respectively through the pipe mouth fixing block 9, and then the box door 2 is closed, and observation is carried out through the observation window 3, and the electric heating plate 15 in the organic solvent box 11 is first opened, and then the corrosion-resistant pump 13 on the connecting pipeline between the inlet pipe 5 and the organic solvent box 11 is opened, and then the connecting pipeline between the inlet pipe 5 and the organic solvent box 11 and the corrosion-resistant solenoid valve 14 on the connecting pipeline between the outlet pipe 6 and the organic solvent box 11 are opened, and then the organic solvent volatilized after heating is driven to continuously pass through the ventilation duct sample to simulate actual use, and the organic solvent in the organic solvent box 11 is a mixture of multiple highly corrosive organic solvents, so as to ensure the accuracy of verification, and after the organic solvent detection time is up, the electric heating plate 15 in the organic solvent box 11, the corrosion-resistant pump 13 on the connecting pipeline between the inlet pipe 5 and the organic solvent box 11 and the inlet pipe 5 and The connecting pipeline of the organic solvent box 11 and the corrosion-resistant solenoid valve 14 on the connecting pipeline of the outlet pipe 6 and the organic solvent box 11, then open the electric heating plate 15 in the volatile acid box 12, then open the corrosion-resistant pump 13 on the connecting pipeline of the inlet pipe 5 and the volatile acid box 12, and then open the connecting pipeline of the inlet pipe 5 and the volatile acid box 12 and the corrosion-resistant solenoid valve 14 on the connecting pipeline of the outlet pipe 6 and the volatile acid box 12, and then drive the acid volatilized after heating to continuously pass through the ventilation duct sample to simulate actual use, and the acid in the volatile acid box 12 is a mixture of multiple volatile strong corrosive acids, so as to ensure the accuracy of the test results, close all pumps and valves after the specified time, and then observe the inner wall of the ventilation duct sample, so as to conveniently complete the strong corrosion resistance performance test of the corrosion-resistant ventilation duct, and at the same time, the organic solvent box 11 and the volatile acid box 12 are both provided with a liquid inlet pipe and a liquid outlet pipe, and the organic solvent and acid therein are replaced after a certain period of use to ensure the accuracy of the test results.
[0018] Specifically, the ventilation duct sample fixing device described in this embodiment includes two vertical rods 16, the bottom of the vertical rod 16 is fixedly connected to the bottom of the detection box 1, the top of the vertical rod 16 is connected to the top of the first arc plate 17, the second arc plate 18 is arranged above the first arc plate 17, the first arc plate 17 can be buckled with the second arc plate 18, and the first and second arc plates 17 and 18 are provided with fixing ears 19 on both sides, and the fixing ears 19 on the same side of the first and second arc plates 17 and 18 are fixed by bolts 20. The fixing ears 19 on the same side of the first and second arc plates 17 and 18 are fixed by bolts 20, which can conveniently fix cylindrical ventilation ducts of different diameters for easy use.
[0019] Specifically, the vertical rod 16 described in this embodiment is a telescopic rod structure. The vertical rod 16 is a telescopic rod structure, which is convenient for adjusting the height according to ventilation pipes of different diameters so that it can be conveniently plugged and matched with the pipe opening fixing block 9.
[0020] Furthermore, the other end of the inlet pipe 5 described in this embodiment is connected to the ventilation pipe 21, and a high-pressure air pump 22 is arranged on the ventilation pipe 21. The other end of the outlet pipe 6 is connected to the top of the waste liquid recovery tank 23 through a pipeline, and a ventilation solenoid valve 24 is respectively arranged on the connection pipelines between the ventilation pipe 21 and the outlet pipe 6 and the waste liquid recovery tank 23. Since a certain amount of volatiles remain in the ventilation duct sample after the detection is completed, the high-pressure air pump 22 and the two ventilation solenoid valves 24 are turned on to send the remaining volatiles into the waste liquid recovery tank 23 by blowing air, thereby ensuring that a certain amount of volatiles remaining in the ventilation duct sample will not flow into the outside air to pollute the environment. At the same time, the waste liquid recovery tank 23 is provided with a liquid outlet pipe and a liquid outlet valve for regular discharge to ensure its normal use.
[0021] Furthermore, the top of the detection box 1 described in this embodiment is connected to the top of the waste liquid recovery box 23 through a pipeline, a negative pressure pump 25 is arranged on the connecting pipeline between the detection box 1 and the waste liquid recovery box 23, an air inlet pipe 26 is arranged on the top of the detection box 1, and an air inlet valve 27 is arranged on the air inlet pipe 26. When leakage occurs during the detection process, all corrosion-resistant pumps 13 and corrosion-resistant solenoid valves 14 are first closed, and then the negative pressure pump 25 is opened to quickly draw the leaked volatiles into the waste liquid recovery box 23, and then because the negative pressure box door 2 cannot be opened, the air inlet valve 27 is opened to allow the outside air to be sent in through the air inlet pipe 26, so that the internal air pressure is balanced, and the box door 2 is opened for subsequent processing, which is convenient for use.
[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A special corrosion-resistant ventilation duct performance detection device, characterized in that: The invention comprises a detection box (1), wherein a box door (2) is arranged on the front side of the detection box (1), an observation window (3) and a handle (4) are arranged on the box door (2), a ventilation duct sample fixing device is arranged in the detection box (1), one side of the detection box (1) is connected with one end of an inlet pipe (5), and the other side of the detection box (1) is connected with one end of an outlet pipe (6), one end of the inlet pipe (5) is connected with one end of an air inlet hose (7), one end of the outlet pipe (6) is connected with one end of an air outlet hose (8), one end of the air inlet hose (7) and one end of the air outlet hose (8) are provided with a truncated cone-shaped pipe mouth fixing block (9) made of corrosion-resistant rubber material, a cavity (10) is arranged in the pipe mouth fixing block (9), and the cavity (10) can be connected with the air inlet hose (7) or the air outlet hose (8), and the The other end of the inlet pipe (5) is communicated with one side of the top of the organic solvent tank (11) and the volatile acid tank (12) through pipelines, respectively; a corrosion-resistant pump (13) is provided on the connecting pipelines between the other end of the inlet pipe (5) and the organic solvent tank (11) and the volatile acid tank (12), respectively; the other end of the outlet pipe (6) is communicated with the other side of the top of the organic solvent tank (11) and the volatile acid tank (12) through pipelines, respectively; a corrosion-resistant solenoid valve (14) is provided on the connecting pipelines between the other end of the inlet pipe (5) and the organic solvent tank (11) and the volatile acid tank (12), and the other end of the outlet pipe (6) and the organic solvent tank (11) and the volatile acid tank (12), respectively; and an electric heating plate (15) is provided on the bottom of each of the organic solvent tank (11) and the volatile acid tank (12).
2. A special corrosion-resistant ventilation duct performance detection device according to claim 1, characterized in that: The ventilation duct sample fixing device comprises two vertical rods (16), the bottom of the vertical rods (16) is fixedly connected to the bottom of the detection box (1), the top of the vertical rods (16) is connected to the top of the first curved plate (17), a second curved plate (18) is arranged above the first curved plate (17), the first curved plate (17) can be buckled with the second curved plate (18), fixing ears (19) are arranged on both sides of the first curved plate (17) and the second curved plate (18), and the fixing ears (19) on the same side of the first curved plate (17) and the second curved plate (18) are fixed by bolts (20).
3. A special corrosion-resistant ventilation duct performance detection device according to claim 2, characterized in that: The vertical rod (16) is a telescopic rod structure.
4. A special corrosion-resistant ventilation duct performance detection device according to claim 1, characterized in that: The other end of the inlet pipe (5) is connected to the ventilation pipe (21), and a high-pressure air pump (22) is arranged on the ventilation pipe (21). The other end of the outlet pipe (6) is connected to the top of the waste liquid recovery tank (23) through a pipeline. A ventilation solenoid valve (24) is respectively arranged on the connection pipeline between the ventilation pipe (21) and the outlet pipe (6) and the waste liquid recovery tank (23).
5. A special corrosion-resistant ventilation duct performance detection device according to claim 1, characterized in that: The top of the detection box (1) is connected to the top of the waste liquid recovery box (23) through a pipeline, a negative pressure pump (25) is arranged on the connecting pipeline between the detection box (1) and the waste liquid recovery box (23), an air inlet pipe (26) is arranged on the top of the detection box (1), and an air inlet valve (27) is arranged on the air inlet pipe (26).