A pipe spark arrestor

Abstract

The application discloses a pipeline spark preventing device, which comprises an upper assembly and a lower assembly; the lower assembly comprises a lower cylinder, a lower head and an air inlet pipe; the upper assembly comprises an upper cylinder, an upper head and an air outlet pipe; the upper cylinder and the lower cylinder are detachably connected; and a wind shield is arranged above the air inlet pipe. The pipeline spark preventing device disclosed by the application not only has simple structure and is convenient to use, but also greatly improves the effect of preventing sparks from escaping from the pipeline outlet, avoids the escape of sparks from the pipeline outlet, and has simple overall structure and is convenient to disassemble and assemble and clean dust after use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of combustion devices, in particular to a pipeline spark prevention device. BACKGROUND

[0002] Fire is often needed in life and production, and sparks are inevitably generated in the process of using fire. In order to achieve the purpose of preventing sparks, the existing technology generally sets a baffle on the pipeline (or called "chimney"), and a plurality of small holes are set on the baffle to achieve the purpose of passing flue gas while blocking sparks. However, such technical solution at least has the following disadvantages: (1) the flow area at the baffle is reduced, which easily leads to flue gas backflow and cannot be smoothly discharged; (2) the effect of preventing sparks is not thorough, and sparks may still be discharged with flue gas; (3) the baffle is not easy to replace after being damaged; (4) the effect of preventing sparks is poor when the holes on the baffle are large, and the holes on the baffle are easy to be blocked when the holes are small.

[0003] It can be seen that the existing technology needs to be improved and enhanced. SUMMARY

[0004] In view of the above disadvantages of the existing technology, the purpose of the present application is to provide a pipeline spark prevention device, which aims to solve the technical problems that the pipeline uses a baffle to prevent sparks, which easily leads to flue gas backflow and the effect of preventing sparks is not thorough in the prior art.

[0005] In order to achieve the above purpose, the present application adopts the following technical solution:

[0006] A pipeline spark prevention device comprises an upper assembly and a lower assembly; the lower assembly comprises a lower cylinder, a lower head and an air inlet pipe, the upper assembly comprises an upper cylinder, an upper head and an air outlet pipe, and the upper cylinder and the lower cylinder are detachably connected; an air baffle is arranged above the air inlet pipe.

[0007] Further, in the pipeline spark prevention device, the lower assembly is further provided with an adjusting mechanism for adjusting the up-down movement of the air baffle.

[0008] Further, in the pipeline spark prevention device, the adjusting mechanism comprises a bracket connected with the lower cylinder, an adjusting rod threadedly connected with the bracket, and a rotating frame connected with the adjusting rod, and the bottom end of the adjusting rod is connected with the air baffle.

[0009] Further, in the pipeline spark prevention device, the inner wall of the lower cylinder is provided with two lugs, and the two lugs are connected with the bracket through bolts.

[0010] Further, in the pipeline spark prevention device, the adjusting rod comprises a threaded rod and a polygonal rod, and the rotating frame is provided with a polygonal hole, and the polygonal rod is inserted into the polygonal hole.

[0011] Further, the pipeline fire star device, the top end of the air inlet pipe passes through the lower head upwards.

[0012] Further, the pipeline fire star device, the lower cylinder is provided with a water injection hole.

[0013] Further, the pipeline fire star device, the upper cylinder can be inserted into the lower cylinder, or the lower cylinder can be inserted into the upper cylinder.

[0014] Further, the pipeline fire star device, the diameter of the air inlet pipe is greater than the diameter of the air outlet pipe.

[0015] Further, the pipeline fire star device, the lower cylinder is provided with a water injection hole.

[0016] Further, the water injection hole is connected with a water guide disc, the water guide disc is provided with a water injection device, and the bottom of the water injection device is provided with a water outlet hole.

[0017] Beneficial effects: the pipeline fire star device provided by the application, compared with the prior art, by setting the air inlet pipe, the lower cylinder, the wind shield, the upper cylinder and the air outlet pipe and other components, not only simple structure, convenient to use, and greatly improve the effect of pipeline fire star, avoid the fire star from the pipe outlet escape, in addition, the whole structure is simple, disassembly, use after can conveniently clean the dust. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The front view of the pipeline fire star device provided by the application.

[0019] Figure 2 The explosion view of the pipeline fire star device provided by the application.

[0020] Figure 3 The cross-sectional structure of the wind shield and the threaded rod.

[0021] Figure 4 The application schematic diagram of the pipeline fire star device.

[0022] Figure 5 The top view of the water injection device. DETAILED DESCRIPTION

[0023] The application provides a pipeline fire star device, in order to make the purpose, technical scheme and effect of the application more clear and definite, the following will be further described in detail. It should be understood that the specific embodiments described herein are only used to explain the application, and are not used to limit the application.

[0024] Please refer to Figures 1 to 4 The application provides a pipeline fire star device. The dotted line in the figure represents the internal structure, which cannot be directly observed from the outside. Figure 4The arrow in the figure schematically shows the movement path of the flue gas. The figure is only used to explain the structural principle and is not proportional to the actual product.

[0025] The pipeline spark-proof device comprises an upper assembly and a lower assembly, the lower assembly comprises a lower cylinder 2, a lower head 29 and an air inlet pipe 1, the upper assembly comprises an upper cylinder 4, an upper head 49 and an air outlet pipe 5, and the upper cylinder and the lower cylinder are detachably connected; an air baffle 3 is arranged above the air inlet pipe.

[0026] As shown in the figure, the air baffle opening faces downward, and the air baffle, the lower cylinder and the upper cylinder are preferably coaxially arranged. Preferably, the air baffle has an arc shape. As shown in the figure, Figure 3 the air baffle as a whole is a hemispherical shell, but this is only a preferred embodiment, and in actual application, it is not limited thereto, and can also be other shapes. Similarly, the air inlet pipe, the lower cylinder, the upper cylinder and the air outlet pipe preferably have a circular shape, but are not limited thereto, and can also be other shapes. As can be observed from the figure, the lower head and the upper head are preferably arc-shaped heads.

[0027] In actual application, the lower assembly is further provided with an adjusting mechanism for adjusting the upward and downward movement of the air baffle. In order to facilitate the user to adjust the air baffle to a suitable position according to the actual situation.

[0028] There are many technical solutions to realize the upward and downward movement of the air baffle, and here a simple adjusting mechanism (but not limited thereto) is provided: the adjusting mechanism comprises a support 60 connected with the lower cylinder, an adjusting rod (comprising 61 and 62) threadedly connected with the support, and a rotating frame 63 connected with the adjusting rod, and the bottom end of the adjusting rod is connected with the air baffle. The user rotates the rotating frame, and the height of the air baffle can be adjusted. Further, the rotating frame can also be connected with the upper cylinder, and the advantage of this arrangement is that the upper cylinder does not need to be disassembled, and the height of the air baffle can be adjusted by directly rotating the upper cylinder.

[0029] Preferably, the inner wall of the lower cylinder is provided with two lugs 69, and the two lugs are connected with the support through bolts. This arrangement makes it convenient to disassemble and assemble the support and the lower cylinder.

[0030] The support is preferably a straight rod, and the straight rod is provided with a threaded hole 600.

[0031] Further, the adjusting rod comprises a threaded rod 61 and a polygonal rod 62, and the rotating frame is provided with a polygonal hole 630, and the polygonal rod is inserted into the polygonal hole. That is, the threaded rod is screwed into the threaded hole in the support. The polygonal rod and the polygonal hole are clearance-fitted, so that the polygonal rod can be smoothly inserted into the polygonal hole.

[0032] The threaded rod and the polygonal rod can be fixedly connected or detachably connected. As Figure 2As shown, a detachable connection method is given: the top of the threaded rod is provided with a boss 611, and the boss is provided with an external thread. The bottom of the polygonal rod is provided with a second threaded hole 620. The boss can be screwed into the second threaded hole.

[0033] like Figure 1 As shown, the top of the air inlet pipe extends upwards through the lower end cap. This configuration, where the top of the air inlet pipe, the bottom of the lower cylinder, and the lower end cap form a ring-shaped water storage tank 100, allows for the rapid extinguishing of falling sparks, further enhancing the spark protection effect.

[0034] It should be noted that the specific height by which the top of the air inlet pipe extends upwards beyond the lower end cap is not limited here. In practical applications, even if the specific extension height is changed, the essence of the technical solution remains unchanged.

[0035] Preferably, the lower cylinder is provided with a water injection hole. This feature allows water to be added to the water storage tank during use. The water injection hole is not shown in the attached drawing. Figure 1 The location of the water injection hole is schematically indicated only by the center line 111. As can be seen from the attached diagram, the water injection hole is not higher than the top of the air inlet pipe to prevent water from flowing into the air inlet pipe due to overfilling.

[0036] like Figure 4 and Figure 5 To achieve automatic water replenishment, the following further specifications are provided: a water inlet is connected to a water guide plate 81, a water inlet device 82 is provided on the water guide plate, and a water outlet 820 is provided at the bottom of the water inlet device. Preferably, the height of the water outlet is the same as the height of the water inlet; because if the water outlet is too high, the water storage tank will be too full; if the water outlet is too low, the water storage tank will be too empty.

[0037] To use, open the cap 83 on top of the water filling device, cover the outlet 820 with your hand (or by other means), pour in a certain amount of water, close the cap, and place it in the water guide trough. Since the water guide trough is connected to the water storage tank through the water filling hole, during use, when the water level in the storage tank decreases, water in the water guide trough will automatically flow into the storage tank; conversely, when the water level in the water guide trough decreases, water in the storage tank will flow into the water guide trough from the outlet. This cycle repeats, creating an automatic water replenishment system.

[0038] There are many ways to detachably connect the upper and lower cylinders; a simple solution is provided here: the upper cylinder can be inserted into the lower cylinder, or vice versa. As shown in the attached diagram, the bottom end of the upper cylinder has a large-diameter section 41 into which the lower cylinder can be inserted. Similarly, a large-diameter section can also be provided at the top of the lower cylinder to allow the bottom end of the upper cylinder to be inserted into the lower cylinder. Both solutions are essentially the same.

[0039] By Figure 1 It can be observed that, as a preferred, the diameter of the lower cylinder and the upper cylinder is equal, and the diameter of the large diameter section only needs to be slightly larger than the lower cylinder to ensure that the lower cylinder can be smoothly inserted.

[0040] Further, the diameter of the air inlet pipe is larger than the diameter of the air outlet pipe. This is because some combustion devices produce too many sparks, and two or more of the above-mentioned pipe spark prevention devices can be used in series. That is: the air outlet pipe of the lower pipe spark prevention device can be inserted into the air inlet pipe of the upper pipe spark prevention device, and by using in series, the spark prevention effect is further improved.

[0041] For ease of understanding, the use method is further explained as follows: (1) the air inlet pipe is inserted into the outlet pipe 92 of the combustion device 91; (2) water is added to the water storage tank; (3) the upper cylinder is connected with the lower cylinder; (4) according to actual needs, a chimney pipe 92 can be further connected to the air outlet pipe.

[0042] The flue gas generated by the combustion device is sprayed from the air inlet pipe to the wind shield, and the airflow is hindered by the wind shield and turns to the lower cylinder (at this time the sparks fall into the water storage tank and are extinguished); the flue gas further passes through the upper cylinder and the externally connected chimney and is finally discharged to the atmosphere. Since the diameters of the lower cylinder and the upper cylinder are larger than the diameter of the air inlet pipe, the flue gas is decelerated in the lower cylinder and the upper cylinder, and the sparks are extinguished in the lower cylinder and the upper cylinder due to the extension of the residence time, and then fall down due to the action of gravity. After each use, the components can be conveniently disassembled, and the accumulated dust can be easily poured out by inverting the lower assembly. In addition, the components can also be conveniently washed with water. In addition, the pipe spark prevention device is used in series to further improve the spark prevention effect.

[0043] Through the above analysis, compared with the prior art, the pipe spark prevention device of the present application is not only simple in structure and convenient to use, but also greatly improves the pipe spark prevention effect, avoids the escape of sparks from the pipe outlet, and has a simple overall structure and is easy to disassemble and clean after use.

[0044] It can be understood that, for those skilled in the art, equivalent replacements or changes can be made according to the technical solutions and inventive concepts of the present application, and all such changes or replacements shall fall within the protection scope of the present application.

Claims

1. A pipe spark arrestor comprising an upper assembly and a lower assembly, characterized in that, The lower assembly comprises a lower cylinder, a lower head and an air inlet pipe, the upper assembly comprises an upper cylinder, an upper head and an air outlet pipe, the upper cylinder and the lower cylinder are detachably connected; an air baffle is arranged above the air inlet pipe, the air baffle is arc-shaped and has a downward opening; the air baffle, the lower cylinder and the upper cylinder are coaxially arranged; the top end of the air inlet pipe passes through the lower head upwardly; the diameter of the air inlet pipe is larger than that of the air outlet pipe; the lower cylinder is provided with a water injection hole; a water guide disc is connected to the water injection hole, and a water injection device is arranged on the water guide disc, and a water outlet hole is arranged at the bottom of the water injection device.

2. The pipe spark arrestor of claim 1, wherein, The lower assembly is further provided with an adjusting mechanism for adjusting the up-down movement of the air baffle.

3. The pipe spark arrestor of claim 2, wherein, The adjusting mechanism comprises a support connected to the lower cylinder, an adjusting rod threadedly connected to the support, and a rotating frame connected to the adjusting rod, and the bottom end of the adjusting rod is connected to the air baffle.

4. The device of claim 3, wherein, Two lugs are arranged on the inner wall of the lower cylinder, and the two lugs are connected to the support by bolts.

5. The pipe spark arrestor of claim 3, wherein, The adjusting rod comprises a threaded rod and a polygonal rod, a polygonal hole is arranged on the rotating frame, and the polygonal rod is inserted into the polygonal hole.

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