Asphalt flue gas sampling device

Abstract

The utility model relates to an asphalt smoke sampling device which comprises an asphalt combustion furnace, a smoke exhaust pipe, a control valve, a sampling assembly and an exhaust assembly, the smoke exhaust pipe is detachably arranged at the top of the asphalt combustion furnace, the control valve is installed in the smoke exhaust pipe in a penetrating mode, the sampling assembly is installed outside the smoke exhaust pipe in a penetrating mode, the exhaust assembly is installed at the bottom of the sampling assembly in a penetrating mode, and the sampling assembly comprises a valve, a first connecting pipe, a second connecting pipe, a sampling air bag, a connector and an air valve; a first connecting pipe and a second connecting pipe are mounted on the outer surface of the smoke exhaust pipe in a penetrating manner; asphalt smoke circulates in the sampling air bag to discharge residual air in the sampling air bag, so that the purity of the sampled asphalt smoke in the sampling air bag is ensured, the sampled asphalt smoke detection is more accurate, the asphalt smoke detection error is avoided, the sampling air bag can be folded and is convenient to carry, and the device is simple in structure, low in manufacturing cost and convenient to use. And installation and asphalt flue gas sampling are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to bitumen smoke sampling technical field more specifically, it relates to a kind of bitumen smoke sampling device. BACKGROUND

[0002] With the rapid development of highway traffic in China, the scale of asphalt pavement is getting larger and larger. Various scientific research institutes, colleges and universities, production, construction, supervision and other asphalt-related units need to do a lot of asphalt and asphalt mixture test. Asphalt is solid at room temperature, mainly by placing in a high-temperature oven for a period of time to heat the asphalt, a large amount of asphalt gas will be generated; on the other hand, a large amount of asphalt smoke will also be generated during the insulation process of asphalt mixture. At present, the top of the oven in the laboratory generally has an exhaust port to make the air flow in the oven uniform in temperature. During the test, the oven does not have a cleaning and absorbing device, and a large amount of asphalt smoke is directly discharged. When sampling asphalt smoke, it needs to be collected at the outdoor exhaust port, which is relatively cumbersome to operate. Moreover, the asphalt smoke sampling tool is large in size and complex in structure, resulting in high cost and inconvenience in use. SUMMARY

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a bitumen smoke sampling device with the advantages.

[0004] The above technical purpose of the utility model is achieved by the following technical scheme: a bitumen smoke sampling device, comprising: a bitumen combustion furnace, an exhaust pipe, a control valve, a sampling assembly and an exhaust assembly; the exhaust pipe is detachably arranged at the top of the bitumen combustion furnace, the control valve is installed through the inside of the exhaust pipe, the sampling assembly is installed through the outside of the exhaust pipe, and the exhaust assembly is installed through the bottom of the sampling assembly.

[0005] Optionally, the sampling assembly comprises: a valve, a first connecting pipe, a second connecting pipe, a sampling air bag, a connecting head and an air valve; the outer surface of the exhaust pipe is installed through the first connecting pipe and the second connecting pipe, and the control valve is located in the middle of the first connecting pipe and the second connecting pipe; the sampling air bag is arranged between the first connecting pipe and the second connecting pipe; both ends of the sampling air bag are installed through the connecting head, and the connecting head is threadedly connected with the first connecting pipe and the second connecting pipe; the air valve is inlaidly installed in the connecting head.

[0006] Optionally, the outer surface of each of the two connecting heads is fixedly connected with a handle, and the outer surface of the handle is provided with anti-slip lines.

[0007] Optionally, the outer surface of the sampling air bag is provided with a magic tape.

[0008] Optionally, the exhaust assembly comprises: an air pipe, an air cylinder, a one-way exhaust valve, a one-way intake valve, a piston, a pull rod, a through hole and a spring.

[0009] The second connecting pipe is provided with a cylinder through the trachea, and a through hole is formed in the bottom end of the cylinder, a pull rod is slidably arranged in the through hole, a piston is arranged at the top end of the pull rod, the piston is slidably arranged in the cylinder, a spring is arranged outside the pull rod, and the two ends of the spring are fixedly connected with the outer surface of the piston and the inner wall of the cylinder.

[0010] Optionally, a pull ring is arranged at the bottom end of the pull rod.

[0011] In summary, when the device is used, the sampling air bag is arranged between the first connecting pipe and the second connecting pipe, the valve is closed, the air valve is opened, and then the two connecting heads are connected with the first connecting pipe and the second connecting pipe respectively. The inside of the connecting head generates suction when the piston is lowered, so that the one-way air inlet valve is opened to extract the air in the sampling air bag through the trachea and the connecting head, and the inside air of the connecting head pushes away the one-way air outlet valve when the piston is raised. The inside air of the connecting head is extracted through repeated lifting and lowering of the pull rod. When the device is used for sampling asphalt fume, first, the control valve is closed and the valve is opened, the asphalt fume in the exhaust pipe enters the sampling air bag through the second connecting pipe and is discharged from the first connecting pipe to the exhaust pipe, the asphalt fume flows in the sampling air bag to discharge the residual air in the sampling air bag, so that the purity of the sampled asphalt fume is ensured, the detection of the sampled asphalt fume is more accurate, errors in the detection of the asphalt fume are avoided, then the control valve is opened and the valve and the air valve are closed, the asphalt fume flows and is discharged from the exhaust pipe, the air valve is closed to prevent the asphalt fume from leaking, the connecting head is twisted to separate from the first connecting pipe and the second connecting pipe, and the sampling air bag is held, so that the asphalt sampling fume can be conveniently sent for inspection or carried and transported. When the sampling air bag is carried, the air in the sampling air bag is discharged, so that the sampling air bag can be folded for convenient carrying. The device has simple structure, low cost, and is convenient to install and use for sampling asphalt fume. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the front view of the main structure of the utility model;

[0013] Figure 2 is the sectional view of the main structure of the utility model;

[0014] Figure 3 is the internal specific structure diagram of the utility model;

[0015] Figure 4 is the part explosion structure view of the utility model;

[0016] Figure 5 is the specific structure diagram of the mounting rack of the utility model.

[0017] In the figure: 1, asphalt combustion furnace; 2, exhaust pipe; 3, control valve; 4, valve; 5, first connecting pipe; 6, sampling gas bag; 7, magic tape; 8, air valve; 9, air pipe; 10, one-way exhaust valve; 11, air cylinder; 12, one-way intake valve; 13, pull ring; 14, second connecting pipe; 15, handle; 16, connector; 17, piston; 18, pull rod; 19, through hole; 20, spring. DETAILED DESCRIPTION

[0018] In order to make the purpose, characteristics and advantages of the utility model more apparent, obvious and easy to understand, the specific embodiments of the utility model are described in detail below in combination with the drawings. The drawings show several embodiments of the utility model. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein.

[0019] In the utility model, unless explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features.

[0020] In the utility model, unless explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature. The terms "vertical", "horizontal", "left", "right", "up", "down" and similar expressions are only for the purpose of description, and are not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0021] The utility model is described in detail below in combination with the drawings and examples.

[0022] The utility model provides a kind of asphalt flue gas sampling device, as Figures 1-5 As shown in the figure, comprising: asphalt combustion furnace 1, exhaust pipe 2, control valve 3, sampling assembly and exhaust assembly;Exhaust pipe 2 is detachably arranged at the top of asphalt combustion furnace 1, control valve 3 is installed through the inside of exhaust pipe 2, sampling assembly is installed through the outside of exhaust pipe 2, and exhaust assembly is installed through the bottom of sampling assembly.

[0023] Specifically, when assembling the asphalt flue gas sampling device, only need to install the sampling gas bag 6 in the sampling assembly through the connecting head 16 and the first connecting pipe 5 and the second connecting pipe 14, the installation steps are more simple, and the sampling of asphalt flue gas is convenient.

[0024] Further, the sampling assembly comprises: valve 4, first connecting pipe 5, second connecting pipe 14, sampling gas bag 6, connecting head 16, and gas valve 8;The outer surface of exhaust pipe 2 is installed through the first connecting pipe 5 and the second connecting pipe 14, and the control valve 3 is located in the middle of the first connecting pipe 5 and the second connecting pipe 14, the sampling gas bag 6 is arranged between the first connecting pipe 5 and the second connecting pipe 14, both ends of the sampling gas bag 6 are installed through the connecting head 16, and the connecting head 16 is threadedly connected with the first connecting pipe 5 and the second connecting pipe 14, and the gas valve 8 is inlaidly installed in the inside of the connecting head 16.

[0025] Specifically, by installing the sampling gas bag 6 through the connecting head 16 and the first connecting pipe 5 and the second connecting pipe 14, closing the control valve 3 and opening the valve 4 at the same time, the asphalt flue gas in the exhaust pipe 2 enters the sampling gas bag 6 through the second connecting pipe 14 and is discharged from the first connecting pipe 5 to the exhaust pipe 2, the asphalt flue gas circulates in the sampling gas bag 6 to discharge the residual air in the sampling gas bag 6, ensuring the purity of the sampling asphalt flue gas, making the sampling asphalt flue gas detection more accurate, avoiding errors in the detection of asphalt flue gas, then opening the control valve 3, closing the valve 4 and the gas valve 8, the asphalt flue gas flows and discharges from the exhaust pipe 2, the gas valve 8 is closed to prevent the asphalt flue gas from leaking, and the connecting head 16 is twisted to separate from the first connecting pipe 5 and the second connecting pipe 14, and the sampling gas bag 6 can be held, making it convenient to send for inspection or carry and transport the asphalt sampling flue gas.

[0026] Further, the outer surface of the two connecting heads 16 is fixedly connected with the handle 15, and the outer surface of the handle 15 is provided with anti-skid lines.

[0027] Specifically, it is convenient for the user to rotate the connecting head 16 for installation, preventing the staff from slipping when rotating the connecting head 16.

[0028] Further, the outer surface of the sampling gas bag 6 is provided with a magic tape 7.

[0029] Specifically, the sampling air bag 6 is fixed by magic tape 7 around the paste, and the sampling air bag 6 is fixed by tying, preventing the sampling air bag 6 from unfolding and being inconvenient to carry or affecting the appearance when the sampling air bag 6 is deflated.

[0030] Further, the exhaust assembly comprises: an air pipe 9, an air cylinder 11, a one-way exhaust valve 10, a one-way intake valve 12, a piston 17, a pull rod 18, a through hole 19 and a spring 20;

[0031] The second connecting pipe 14 is installed through the air pipe 9 and the air cylinder 11, and the bottom end of the air cylinder 11 is provided with a through hole 19. The pull rod 18 is slidably installed in the through hole 19. The top end of the pull rod 18 is provided with the piston 17, and the piston 17 is slidably installed in the air cylinder 11. The pull rod 18 is provided with the spring 20, and the two ends of the spring 20 are fixedly connected with the outer surface of the piston 17 and the inner wall of the air cylinder 11.

[0032] Specifically, the pull rod 18 repeatedly moves up and down. When the piston 17 descends, the one-way intake valve 12 is opened by the suction force in the connecting head 16 to extract the air in the sampling air bag 6 through the air pipe 9 and the connecting head 16. When the piston 17 rises, the air in the connecting head 16 pushes away the one-way exhaust valve 10 to discharge. By repeatedly moving up and down, the air in the sampling air bag 6 is extracted, the sampling air bag 6 is deflated, and the sampling air bag 6 is prevented from being damaged by accidental collision due to large volume in the installed state. The deflation of the sampling air bag 6 prevents the internal air from affecting the purity of the asphalt smoke.

[0033] Further, the bottom end of the pull rod 18 is provided with a pull ring 13.

[0034] Specifically, it is convenient for the user to pull the pull rod 18 to move up and down.

[0035] The utility model discloses a kind of asphalt smoke sampling devices, sampling gas bag 6 is placed between first connecting pipe 5 and second connecting pipe 14 when using, make valve 4 be in closed state, air valve 8 be in open state, then two connecting heads 16 are connected with first connecting pipe 5 and second connecting pipe 14 respectively, by repeatedly lifting and moving of pull rod 18, suction force is generated in connecting head 16 inside when piston 17 drops, make one-way air inlet valve 12 open through air pipe 9 and connecting head 16 extraction sampling gas bag 6 inner air, piston 17 rises, connecting head 16 inside air pushes away one-way air outlet valve 10 and discharges, by repeatedly lifting and moving of pull rod 18, sampling gas bag 6 inside air is extracted, when using, first close control valve 3 and simultaneously open valve 4, asphalt smoke in flue 2 enters sampling gas bag 6 through second connecting pipe 14 and is discharged from first connecting pipe 5 to flue 2 and is guided out, asphalt smoke circulates in sampling gas bag 6, residual air in sampling gas bag 6 is discharged, guarantee sampling asphalt smoke purity in sampling gas bag 6, make sampling asphalt smoke detection more accurate, avoid error in asphalt smoke detection, then open control valve 3, close valve 4 and air valve 8, asphalt smoke circulates and discharges from flue 2, air valve 8 is closed to prevent asphalt smoke from leaking, connecting head 16 is screwed and separated from first connecting pipe 5 and second connecting pipe 14, hold sampling gas bag 6, so that asphalt sampling smoke is conveniently sent for examination or carried and transported, when carrying sampling gas bag 6, sampling gas bag 6 inside air is discharged, so that sampling gas bag 6 can be folded and carried conveniently, the device is simple in structure and low in cost, and is convenient to install and use for asphalt smoke sampling.

[0036] The above is only preferred embodiment of the utility model, the protection scope of the utility model is not only limited to the above-mentioned embodiment, and all technical solutions belonging to the idea of the utility model are within the protection scope of the utility model. It should be noted that, for ordinary skilled person in the art, some improvements and decorations without departing from the principle of the utility model, these improvements and decorations should also be considered as the protection scope of the utility model.

Claims

1. An asphalt fume sampling device, characterized by, Include: Asphalt combustion furnace (1), exhaust pipe (2), control valve (3), sampling assembly and exhaust assembly; The exhaust pipe (2) is detachably arranged at the top of the asphalt combustion furnace (1), the control valve (3) is installed inside the exhaust pipe (2), the sampling assembly is installed outside the exhaust pipe (2), and the exhaust assembly is installed at the bottom of the sampling assembly.

2. The asphalt fume sampling device of claim 1, wherein, The sampling assembly comprises a valve (4), a first connecting pipe (5), a second connecting pipe (14), a sampling air bag (6), a connecting head (16) and a gas valve (8); The outer surface of the exhaust pipe (2) is provided with the first connecting pipe (5) and the second connecting pipe (14), and the control valve (3) is located in the middle of the first connecting pipe (5) and the second connecting pipe (14), the sampling air bag (6) is arranged between the first connecting pipe (5) and the second connecting pipe (14), both ends of the sampling air bag (6) are provided with the connecting head (16), and the connecting head (16) is screwed with the first connecting pipe (5) and the second connecting pipe (14), the gas valve (8) is embeddedly installed in the connecting head (16).

3. The asphalt fume sampling device of claim 2, wherein, The outer surface of the connecting head (16) is fixedly connected with a handle (15), and the outer surface of the handle (15) is provided with anti-skid lines.

4. The asphalt fume sampling device of claim 3, wherein, The outer surface of the sampling air bag (6) is provided with a magic tape (7).

5. The asphalt fume sampling device of claim 4, wherein, The exhaust assembly comprises a gas pipe (9), a gas cylinder (11), a one-way exhaust valve (10), a one-way intake valve (12), a piston (17), a pull rod (18), a through hole (19) and a spring (20); The second connecting pipe (14) is provided with the gas cylinder (11) through the gas pipe (9), and the bottom end of the gas cylinder (11) is provided with the through hole (19), the pull rod (18) is slidably installed in the through hole (19), the top end of the pull rod (18) is provided with the piston (17), and the piston (17) is slidably installed in the gas cylinder (11), the pull rod (18) is provided with the spring (20), and the two ends of the spring (20) are fixedly connected with the outer surface of the piston (17) and the inner wall of the gas cylinder (11).

6. The asphalt fume sampling device of claim 5, wherein, The bottom end of the pull rod (18) is provided with a pull ring (13).

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