Asphalt detection exhaust device

Abstract

The utility model relates to road construction detection technical field especially, more particularly to a kind of asphalt detection exhaust device.The asphalt detection exhaust device includes gas collecting hood, and the top of gas collecting hood is equipped with exhaust pipe fitting, exhaust pipe fitting includes butt joint pipe, and one end of butt joint pipe is fixedly connected with the exhaust port of gas collecting hood, and the other end of butt joint pipe is fixedly installed with corrugated hose, and the other end of corrugated hose is fixedly installed with straight pipe;Exhaust fan is installed in butt joint pipe, activated carbon column is equipped in straight pipe, and elastic connecting's resistance ring is also installed in straight pipe.The asphalt detection exhaust device provided by the utility model can be bent due to corrugated hose, so that straight pipe is flexibly installed at the exhaust port of laboratory, when replacing activated carbon column, after unscrewing screw cap, under the action of spring elasticity, activated carbon column body is driven to slide out a part of threaded port, so that staff member is quickly removed.

Description

Technical Field

[0001] This utility model relates to the field of road construction testing technology, and in particular to an asphalt testing exhaust device. Background Technology

[0002] In current asphalt testing processes, temperature control of the testing room and the instruments used is particularly important. To meet this stringent requirement, all asphalt tests must be conducted indoors, making the testing environment relatively enclosed. To ensure the accuracy of the asphalt tests, the asphalt must be maintained within a specific temperature range. However, this testing process generates a large amount of asphalt fumes and other harmful gases. If these gases cannot be effectively and promptly removed, they will not only pollute the laboratory air but also harm the respiratory health of the staff and even affect the lifespan of the testing instruments.

[0003] In existing technologies, simple fume hoods or exhaust fans are often used for exhaust gas discharge, but these methods suffer from problems such as low purification efficiency, incomplete exhaust gas collection, and poor equipment flexibility. For example, traditional exhaust devices often cannot effectively adsorb harmful substances, and the exhaust pipes are fixed, making it difficult to adapt to different laboratory layouts. At the same time, activated carbon filters are inconvenient to replace, which can easily lead to secondary pollution.

[0004] Therefore, it is necessary to provide a new asphalt testing and venting device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an asphalt detection and exhaust device.

[0006] The asphalt testing exhaust device provided by this utility model includes a gas collection hood, and an exhaust pipe for discharging asphalt exhaust gas is installed on the top of the gas collection hood. The exhaust pipe includes a connecting pipe, one end of which is fixedly connected to the exhaust port of the gas collection hood, and a corrugated hose is fixedly installed on the other end of the connecting pipe. A straight exhaust pipe is fixedly installed on the other end of the corrugated hose. An exhaust fan is installed inside the connecting pipe, and an activated carbon column for purifying asphalt waste gas is installed inside the straight discharge pipe. An elastically connected retaining ring is also installed inside the straight discharge pipe, through which the activated carbon column is discharged.

[0007] Preferably, the outer opening of the straight pipe is provided with a threaded opening, and a threaded cap with a threaded connection is installed on the threaded opening.

[0008] Preferably, the straight pipe has multiple annularly distributed vent holes on the pipe body near the threaded opening.

[0009] Preferably, a fixing ring is fixedly installed inside the straight pipe, and a spring is fixedly installed on the annular surface of the fixing ring near the threaded opening, and an abutment ring is fixedly connected to the other end of the spring.

[0010] Preferably, an abutment rod for abutting the activated carbon column is fixedly installed on the inner cover surface of the threaded cap.

[0011] Preferably, an air cushion is fixedly fitted to the bottom of the gas collection hood.

[0012] Compared with related technologies, the asphalt testing and exhaust device provided by this utility model has the following advantages: This invention allows the flexible installation of the straight exhaust pipe at the laboratory's exhaust vent, thanks to the bendable corrugated hose. Before the asphalt testing, the threaded cap is unscrewed, and the activated carbon column is inserted into the straight exhaust pipe and placed on the abutment ring. Closing the threaded cap causes the abutment rod to press and push the activated carbon column, followed by tightening the threaded cap. As a result, under the abutment action of the abutment rod, the activated carbon column compresses the spring, and its head slides past the exhaust port, as shown in the attached diagram. Therefore, when asphalt exhaust gas enters the straight exhaust pipe, it is adsorbed and filtered by the activated carbon column before being discharged through the exhaust port. When replacing the activated carbon column, after unscrewing the threaded cap, the spring force causes the activated carbon column to slide out of the threaded opening, allowing for quick removal by the staff. Attached Figure Description

[0013] Figure 1 One of the structural schematic diagrams of a preferred embodiment of the asphalt detection and exhaust device provided by this utility model; Figure 2 A second schematic diagram of a preferred embodiment of the asphalt detection and exhaust device provided by this utility model; Figure 3 for Figure 1 The exploded structural diagram of the exhaust pipe component shown; Figure 4 for Figure 1 A schematic diagram of the internal structure of the exhaust pipe component shown in cross-section; Figure 5 for Figure 4 The diagram shows a cross-sectional view of the exhaust pipe component.

[0014] The following are labeled in the diagram: 1. Gas collection hood; 2. Exhaust pipe fitting; 21. Connecting pipe; 22. Corrugated hose; 23. Straight exhaust pipe; 23a. Exhaust port; 231. Threaded port; 232. Threaded cap; 233. Abutting rod; 4. Activated carbon column; 5. Abutting ring; 51. Spring; 6. Retaining ring; 7. Air cushion. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0017] Please see Figures 1 to 5 The present invention provides an asphalt detection exhaust device, which includes an air collection hood 1 and an exhaust pipe 2.

[0018] In the embodiments of this utility model, please refer to Figure 1 and Figure 2 The top of the gas collection hood 1 is equipped with an exhaust pipe 2 for discharging asphalt exhaust gas. The exhaust pipe 2 includes a connecting pipe 21, one end of which is fixedly connected to the exhaust port of the gas collection hood 1. An exhaust fan 3 is installed inside the connecting pipe 21.

[0019] It should be noted that the gas collection hood 1 in this application is made of stainless steel, which is not only sturdy and durable but also has good corrosion resistance and can adapt to various harsh working environments. The gas collection hood 1 is installed above the laboratory operating table, with a length of 3.8 meters and a width of 1.2 meters, which can ensure that the gas collection hood can comprehensively collect asphalt fumes (its size can also be customized according to needs). Therefore, after the exhaust fan 3 is turned on, the gas collection hood 1 can ensure that the exhaust gas can be effectively captured, avoiding the spread of harmful gases and protecting the health of the staff and the safety of the surrounding environment.

[0020] The system uses a 40*40 mm exhaust fan 3 structure. To further improve collection efficiency, 2 to 3 additional exhaust fans 3 may be added as needed.

[0021] Furthermore, an air cushion 7 is fixedly fitted to the bottom of the gas collection hood 1 to prevent staff from being injured by bumping into the opening of the gas collection hood 1.

[0022] In the embodiments of this utility model, please refer to Figure 1 , Figure 3 , Figure 4 and Figure 5A corrugated hose 22 is fixedly installed at the other end of the connecting pipe 21, and a straight discharge pipe 23 is fixedly installed at the other end of the corrugated hose 22. An activated carbon column 4 for purifying asphalt waste gas is installed inside the straight discharge pipe 23, and an elastically connected abutment ring 5 is also installed inside the straight discharge pipe 23. The activated carbon column 4 is discharged through the abutment ring 5. Specifically, the outer pipe opening of the straight discharge pipe 23 has a threaded opening 231, and a threaded cap 232 with a threaded connection is installed on the threaded opening 231. An abutment rod 233 for abutting the activated carbon column 4 is fixedly installed on the inner cover surface of the threaded cap 232. Multiple annularly distributed exhaust holes 23a are opened on the pipe body of the straight discharge pipe 23 near the threaded opening 231. A fixing ring 6 is fixedly installed inside the straight discharge pipe 23, and a spring 51 is fixedly installed on the annular surface of the fixing ring 6 near the threaded opening 231. The other end of the spring 51 is fixedly connected to the abutment ring 5.

[0023] It should be noted that: because the corrugated hose 22 can be bent, the straight exhaust pipe 23 can be flexibly installed at the laboratory's exhaust vent. Before the asphalt testing, unscrew the threaded cap 232, then insert the activated carbon column 4 into the straight exhaust pipe 23 and place it on the abutment ring 5. Closing the threaded cap 232 causes the abutment rod 233 to press and push the activated carbon column 4. Then, tighten the threaded cap 232 to fix it. Therefore, under the abutment action of the abutment rod 233, the activated carbon column 4 compresses the spring 51, and at the same time, the column head of the activated carbon column 4 slides past the exhaust hole 23a (as shown in the attached diagram). Figure 4 As shown in the figure, when the asphalt exhaust gas enters the direct discharge pipe 23, it is adsorbed and filtered by the activated carbon column 4, and then discharged out through the exhaust port 23a. When replacing the activated carbon column 4, after unscrewing the threaded cap 232, the column body of the activated carbon column 4 is driven to slide out of the threaded opening 231 by the elastic force of the spring 51, so that the staff can quickly take it out.

[0024] In order to eliminate the potential risk of spring 51 rusting and losing its elasticity due to contact with water, spring 51 is made of stainless steel or titanium alloy to improve corrosion resistance. At the same time, a polytetrafluoroethylene (PTFE) coating is applied to the surface of spring 51 to enhance its rust prevention ability.

[0025] The working principle of the asphalt testing and exhaust device provided by this utility model is as follows: The gas collection hood 1 is made of stainless steel, which is not only sturdy and durable but also has good corrosion resistance, making it suitable for various harsh working environments. Installed above the laboratory workbench, the gas collection hood 1 measures 3.8 meters in length and 1.2 meters in width, ensuring comprehensive collection of asphalt fumes (its dimensions can be customized). Therefore, when the exhaust fan 3 is turned on, the gas collection hood 1 ensures effective capture of exhaust gases, preventing the spread of harmful gases and protecting the health of staff and the safety of the surrounding environment. Because the corrugated hose 22 is flexible, the straight exhaust pipe 23 can be flexibly installed at the laboratory's exhaust vent. Before the asphalt testing, the threaded cap 232 is unscrewed, and then the activated carbon column 4 is inserted into the straight exhaust pipe 23 and placed on the abutment ring 5. Closing the threaded cap 232 causes the abutment rod 233 to press and push the activated carbon column 4. Then, the threaded cap 232 is tightened to secure it. Therefore, under the abutment action of the abutment rod 233, the activated carbon column 4 compresses the spring 51, and its head slides past the exhaust port 23a (as shown in the attached diagram). Figure 4 As shown in the figure, when the asphalt exhaust gas enters the direct discharge pipe 23, it is adsorbed and filtered by the activated carbon column 4, and then discharged through the exhaust hole 23a. When the activated carbon column 4 is replaced, after unscrewing the threaded cap 232, the column body of the activated carbon column 4 is driven to slide out of the threaded opening 231 by the elastic force of the spring 51, so that the staff can quickly take it out.

[0026] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An asphalt detection exhaust device characterized by, The system includes a gas collection hood (1), the top of which is equipped with an exhaust pipe (2) for discharging asphalt waste gas. The exhaust pipe (2) includes a connecting pipe (21), one end of which is fixedly connected to the exhaust port of the gas collection hood (1), and the other end of which is fixedly equipped with a corrugated hose (22). The other end of which is fixedly equipped with a straight pipe (23). An exhaust fan (3) is installed inside the connecting pipe (21), and an activated carbon column (4) for purifying asphalt waste gas is provided inside the straight discharge pipe (23). An elastically connected abutment ring (5) is also installed inside the straight discharge pipe (23), and the activated carbon column (4) is discharged through the abutment ring (5).

2. The asphalt detection exhaust device according to claim 1, wherein The outer opening of the straight pipe (23) is provided with a threaded opening (231), and a threaded cap (232) with threaded connection is installed on the threaded opening (231).

3. The asphalt testing exhaust apparatus of claim 2, wherein, The straight pipe (23) has multiple annularly distributed exhaust holes (23a) on the pipe body near the threaded opening (231).

4. The asphalt testing exhaust apparatus of claim 1, wherein, A fixing ring (6) is fixedly installed inside the straight pipe (23). A spring (51) is fixedly installed on the annular surface of the fixing ring (6) near the threaded opening (231), and an abutment ring (5) is fixedly connected to the other end of the spring (51).

5. The asphalt testing exhaust apparatus of claim 2, wherein, The inner cover surface of the threaded cap (232) is fixedly fitted with an abutment rod (233) for abutting the activated carbon column (4).

6. The asphalt testing exhaust apparatus of claim 1, wherein, An air cushion (7) is fixedly fitted to the bottom of the air collection hood (1).

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