Explosion-proof detection device for chemical pipeline
By installing protective shells, transparent pipes and reaction components at the chemical pipeline flange connections, and using vacuum pumps to create a negative pressure environment, the risk of explosion caused by not being discovered in time at the chemical pipeline flange connections is solved, and the effect of prompt reminding and handling of leakage is achieved.
Patent Information
- Application Number
- CN202422112514.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The flange connection of chemical pipelines is prone to leakage due to corrosive chemicals, high-pressure and high-temperature environments and frequent start-stop operations. Failure to detect and deal with it in time may lead to explosion.
Design a chemical pipeline explosion-proof detection device, including protective shells installed at flange connections, transparent pipes, reaction components (such as pH test strips or sliders) and sealing strips. Create a negative pressure environment with a vacuum pump, and when a leak occurs, the reaction component triggers a warning to prevent explosion.
Effectively prevent the risk of explosion caused by leakage at the flange connection of chemical pipelines and not promptly discovered. The staff will be reminded in a timely manner through the reaction components to ensure that the leakage is handled in a timely manner.
Smart Images
Figure CN223036219U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of explosion-proof detection, in particular to an explosion-proof detection device for chemical pipelines. Background Art
[0002] Chemical pipelines are widely used in the chemical industry to transport various gaseous chemicals. Due to the wide variety of chemicals and the flammable and explosive characteristics of many chemicals, the leakage of chemicals is extremely dangerous. Therefore, the explosion-proof detection of chemical pipelines is extremely important.
[0003] Common connection methods in chemical pipeline systems include flange connection. By docking the flange plates at both ends of the pipeline and fixing them with bolts, and cooperating with gaskets to achieve the connection between pipelines. However, due to factors such as the corrosiveness of chemicals, the working environment of high pressure and high temperature, and frequent start-stop operations, the flange joints are prone to leakage. If not discovered and processed in time, it may lead to explosion. Content of the Utility Model
[0004] In view of this, the purpose of the utility model is to provide an explosion-proof detection device for chemical pipelines to solve the problem that in the prior art, due to factors such as the corrosiveness of chemicals, the working environment of high pressure and high temperature, and frequent start-stop operations, the flange joints are prone to leakage, and if not discovered and processed in time, it may lead to explosion.
[0005] The utility model is realized through the following technical solutions:
[0006] An explosion-proof detection device for chemical pipelines includes a protective shell installed at the flange joint of the chemical pipeline. A first sealing strip is fixedly connected to the connection between the protective shell and the chemical pipeline. The first sealing strip is closely attached to the outer wall of the chemical pipeline. A transparent pipeline is communicated with the protective shell. A plug is detachably installed at the pipe orifice of the transparent pipeline. A reaction component is installed on the plug, and the reaction component is located inside the transparent pipeline.
[0007] Further, the reaction component is a pH test paper. The pH test paper is located inside the transparent pipeline and is fixedly connected to the lower end of the plug at one end.
[0008] Further, the reaction component is a slider. The slider is slidably connected inside the transparent pipeline and is attached to the inner wall of the transparent pipeline. An elastic support component is installed between the slider and the plug. When the elastic support component is in a natural state, the slider is located at the pipe orifice of the transparent pipeline far from the plug.
[0009] Further, the elastic support component includes a spring. The two ends of the spring are respectively fixedly connected to the slider and the plug.
[0010] Further, an internal thread is cut on the inner side wall of one end of the transparent pipe close to the plug, and an external thread is cut on the outer side wall of the plug. The plug is threadedly connected to the transparent pipe.
[0011] Further, the protective shell includes an upper shell and a lower shell. A convex block is fixedly connected to the lower shell, and a groove adapted to the convex block is formed on the upper shell. The convex block is snap-fitted into the groove.
[0012] Further, a second sealing strip is sleeved on the convex block, and the second sealing strip is used to fill the gap between the convex block and the groove.
[0013] Further, a first through hole is formed on the upper shell, and a second through hole is formed on the lower shell. The first through hole is aligned with the second through hole, and a bolt is passed through them.
[0014] The beneficial effects of the present utility model are as follows:
[0015] For this chemical pipeline explosion-proof detection device, by installing the protective shell at the flange connection of the chemical pipeline and filling the gap between the protective shell and the chemical pipeline with the first sealing strip, a sealed cavity is formed between the protective shell and the chemical pipeline. After the plug is removed from the transparent pipe, a vacuum pump is connected to the pipe orifice of the transparent pipe. The sealed cavity between the protective shell and the chemical pipeline is evacuated by the vacuum pump to obtain a negative pressure environment, and the plug is quickly installed in the transparent pipe. When a leakage occurs at the flange connection of the chemical pipeline, the reaction component can timely remind the staff to prevent explosion.
[0016] Other advantages, objectives and features of the present utility model will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic structural diagram of the present utility model;
[0018] Figure 2 is a schematic connection diagram of the pH test paper and the plug of the present utility model;
[0019] Figure 3 is a schematic connection diagram of the slider and the plug of the present utility model;
[0020] Figure 4 is a schematic structural diagram of the upper shell of the present utility model;
[0021] Figure 5 is a schematic structural diagram of the lower shell of the present utility model;
[0022] Figure 6 For the present utility model Figure 5 is a partial enlarged view of part A in it.
[0023] In the figure:
[0024] 1. Protective shell; 2. First sealing strip; 3. Transparent pipeline; 4. Plug; 5. pH test paper; 6. Slide block; 7. Spring; 8. Internal thread; 9. External thread; 10. Upper shell; 11. Lower shell; 12. Protrusion; 13. Groove; 14. Second sealing strip; 15. First through hole; 16. Second through hole; 17. Bolt; 18. Chemical pipeline; 19. Sealing piece; 20. Rotating shaft. Specific embodiments
[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.
[0027] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0028] In the above description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "one side", "the other side", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of the present utility model is usually placed. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.
[0029] In addition, terms such as "identical" do not require the components to be absolutely identical, but there can be minor differences. The term "vertical" only means that the positional relationship between components is more vertical relative to "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined.
[0030] Please refer to Figures 1-6 , the present utility model provides a technical solution: a chemical pipeline explosion-proof detection device, including a protective shell 1 installed at the flange connection of the chemical pipeline 18. A first sealing strip 2 is fixedly connected at the connection between the protective shell 1 and the chemical pipeline 18. The first sealing strip 2 is closely attached to the outer side wall of the chemical pipeline 18. A transparent pipeline 3 is communicated with the protective shell 1. A plug 4 is detachably installed at the pipe orifice of the transparent pipeline 3. A reaction assembly is installed on the plug 4, and the reaction assembly is located inside the transparent pipeline 3.
[0031] In this solution: a sealing piece 19 is further installed inside the transparent pipeline 3. The outer contour of the sealing piece 19 is adapted to the inner diameter of the transparent pipeline 3. The sealing piece 19 is located at the pipe orifice of the transparent pipeline 3 away from the plug 4. A rotating shaft 20 is rotatably connected to the side wall of the transparent pipeline 3. The rotating shaft 20 horizontally penetrates the side wall of the transparent pipeline 3 and is fixedly connected to the sealing piece 19. After the plug 4 is removed from the transparent pipeline 3, a vacuum pump is communicated at the pipe orifice of the transparent pipeline 3. The optional model of the vacuum pump is KB-300H. The vacuum pump is used to pump air from the closed cavity between the protective shell 1 and the chemical pipeline 18 to obtain a negative pressure environment.
[0032] Working principle and usage method:
[0033] Step 1: Install the protective shell 1 at the flange connection of the chemical pipeline 18, and fill the gap between the protective shell 1 and the chemical pipeline 18 through the first sealing strip 2 to form a closed cavity between the protective shell 1 and the chemical pipeline 18.
[0034] Step 2: After removing the plug 4 from the transparent pipeline 3, rotate the rotating shaft 20 to drive the sealing piece 19 to rotate, so that the sealing piece 19 maintains a vertical state. The transparent pipeline 3 is communicated with the internal cavity of the protective shell 1, and a vacuum pump is communicated at the pipe orifice of the transparent pipeline 3. The vacuum pump is used to pump air from the closed cavity between the protective shell 1 and the chemical pipeline 18 to obtain a negative pressure environment.
[0035] Step 3: Rotate the rotating shaft 20 to drive the sealing piece 19 to rotate, so that the sealing piece 19 maintains a horizontal state, separating the transparent pipeline 3 from the internal cavity of the protective shell 1, and quickly install the plug 4 inside the transparent pipeline 3.
[0036] Step 4: Rotate the rotating shaft 20 to drive the sealing piece 19 to rotate, keeping the sealing piece 19 in a vertical state. The transparent pipeline 3 is communicated with the internal cavity of the protective shell 1. When leakage occurs at the flange connection of the chemical pipeline 18, the reaction component can timely remind the staff to prevent explosion.
[0037] In this embodiment: The reaction component is a pH test paper 5. The pH test paper 5 is located in the transparent pipeline 3 and is fixedly connected to the lower end of the plug 4 at one end.
[0038] In this solution: The reaction component is a pH test paper 5. The pH test paper 5 is located in the transparent pipeline 3 and is fixedly connected to the lower end of the plug 4 at one end. Since the chemical product contains acidic substances or alkaline substances, when the chemical product leaks, the color of the pH test paper 5 will change. The staff can judge whether the chemical product leaks by observing the color change of the pH test paper 5. If the chemical product leaks, it should be dealt with in time to prevent explosion.
[0039] In this embodiment: The reaction component is a slider 6. The slider 6 is slidably connected in the transparent pipeline 3 and fits with the inner side wall of the transparent pipeline 3. An elastic support component is installed between the slider 6 and the plug 4. When the elastic support component is in a natural state, the slider 6 is located at the end of the transparent pipeline 3 far from the plug 4.
[0040] In this solution: The reaction component is a slider 6. The slider 6 is slidably connected in the transparent pipeline 3 and fits with the inner side wall of the transparent pipeline 3. An elastic support component is installed between the slider 6 and the plug 4. When the elastic support component is in a natural state, the slider 6 is located at the end of the transparent pipeline 3 far from the plug 4. When the chemical product leaks, the air pressure in the closed cavity between the protective shell 1 and the chemical pipeline 18 will gradually increase and push the slider 6 to move towards the plug 4, and the elastic support component is in a compressed state. The staff can judge whether the chemical product leaks by observing the position change of the slider 6. If the chemical product leaks, it should be dealt with in time to prevent explosion.
[0041] In this embodiment: The elastic support component includes a spring 7. The two ends of the spring 7 are respectively fixedly connected to the slider 6 and the plug 4.
[0042] In this solution: The elastic support component includes a spring 7. The two ends of the spring 7 are respectively fixedly connected to the slider 6 and the plug 4. When the chemical product does not leak or returns to normal, the slider 6 is located at the end of the transparent pipeline 3 far from the plug 4 under the elastic force of the spring 7.
[0043] In this embodiment: Internal threads 8 are cut on the inner side wall of the transparent pipeline 3 near the plug 4, external threads 9 are cut on the outer side wall of the plug 4, and the plug 4 is threadedly connected to the transparent pipeline 3.
[0044] In this solution: By cutting internal threads 8 on the inner side wall of one end of the transparent pipe 3 close to the plug 4 and cutting external threads 9 on the outer side wall of the plug 4, the plug 4 is threadedly connected to the transparent pipe 3. This facilitates the position adjustment of the plug 4 and the transparent pipe 3, and also facilitates the disassembly and installation between the plug 4 and the transparent pipe 3.
[0045] In this embodiment: The protective shell 1 includes an upper shell 10 and a lower shell 11. A convex block 12 is fixedly connected to the lower shell 11, and a groove 13 adapted to the convex block 12 is provided on the upper shell 10. The convex block 12 is snap-fitted into the groove 13.
[0046] In this solution: The protective shell 1 includes an upper shell 10 and a lower shell 11. A convex block 12 is fixedly connected to the lower shell 11, and a groove 13 adapted to the convex block 12 is provided on the upper shell 10. The convex block 12 is snap-fitted into the groove 13. The upper shell 10 and the lower shell 11 are connected in a snap-fitting manner, which facilitates the installation of the upper shell 10 and the lower shell 11 at the flange connection of the chemical pipeline 18.
[0047] In this embodiment: A second sealing strip 14 is sleeved on the convex block 12, and the second sealing strip 14 is used to fill the gap between the convex block 12 and the groove 13.
[0048] In this solution: By sleeving a second sealing strip 14 on the convex block 12, the second sealing strip 14 is used to fill the gap between the convex block 12 and the groove 13. This ensures that the cavity between the upper shell 10 and the lower shell 11 and the chemical pipeline 18 is in a sealed state.
[0049] In this embodiment: A first through hole 15 is provided on the upper shell 10, and a second through hole 16 is provided on the lower shell 11. The first through hole 15 is aligned with the second through hole 16, and a bolt 17 is passed through them.
[0050] In this solution: By providing a first through hole 15 on the upper shell 10 and a second through hole 16 on the lower shell 11, the first through hole 15 is aligned with the second through hole 16, and a bolt 17 is passed through them. This makes the connection between the upper shell 10 and the lower shell 11 more firm.
[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.
Claims
1. A chemical pipeline explosion-proof detection device, comprising a protective shell (1) installed at a flange connection of a chemical pipeline (18), characterized in that: A first sealing strip (2) is fixedly connected to the connection between the protective shell (1) and the chemical pipeline (18), and the first sealing strip (2) is tightly fitted to the outer wall of the chemical pipeline (18). The protective shell (1) is connected to a transparent pipeline (3), and a plug (4) is detachably installed at the pipe mouth of the transparent pipeline (3). A reaction component is installed on the plug (4), and the reaction component is located in the transparent pipeline (3).
2. The chemical pipeline explosion-proof detection device according to claim 1 is characterized in that: The reaction component is a pH test paper (5), which is located in the transparent pipe (3) and has one end fixedly connected to the lower end of the plug (4).
3. The chemical pipeline explosion-proof detection device according to claim 1 is characterized in that: The reaction component is a slider (6), which is slidably connected in the transparent pipe (3) and fits against the inner wall of the transparent pipe (3). An elastic support component is installed between the slider (6) and the plug (4). When the elastic support component is in a natural state, the slider (6) is located at an end of the transparent pipe (3) away from the plug (4).
4. The chemical pipeline explosion-proof detection device according to claim 3 is characterized in that: The elastic support assembly comprises a spring (7), and two ends of the spring (7) are respectively fixedly connected to the slider (6) and the plug (4).
5. The chemical pipeline explosion-proof detection device according to claim 1 is characterized in that: An internal thread (8) is cut on the inner wall of one end of the transparent pipe (3) close to the plug (4), and an external thread (9) is cut on the side wall of the plug (4). The plug (4) is threadably connected to the transparent pipe (3).
6. The chemical pipeline explosion-proof detection device according to claim 1 is characterized in that: The protective shell (1) comprises an upper shell (10) and a lower shell (11); a protrusion (12) is fixedly connected to the lower shell (11); a groove (13) matching the protrusion (12) is provided on the upper shell (10); and the protrusion (12) is snap-fitted into the groove (13).
7. The chemical pipeline explosion-proof detection device according to claim 6 is characterized in that: The convex block (12) is sleeved with a second sealing strip (14), and the second sealing strip (14) is used to fill the gap between the convex block (12) and the groove (13).
8. The chemical pipeline explosion-proof detection device according to claim 6, characterized in that: The upper shell (10) is provided with a first through hole (15), the lower shell (11) is provided with a second through hole (16), the first through hole (15) is aligned with the second through hole (16), and a bolt (17) is passed through the first through hole (15) and the second through hole (16).