Easy-to-clean breather pipe for oil storage tank

Abstract

The utility model relates to an easy-to-clean oil storage tank breather pipe. The horizontal pipe segment axis is obliquely arranged, and gradually rises from the vertical pipe segment to the connecting pipe segment direction, one end of the horizontal pipe segment close to the vertical pipe segment comprises an elbow pipe segment and a straight pipe segment, and a movable pipe segment is detachably arranged between the elbow pipe segment and the straight pipe segment; the cleaning mechanism comprises a cleaning pipe segment with the same size as the movable pipe segment, the cleaning pipe segment and the movable pipe segment are arranged side by side and connected through a rotating frame, a rotating shaft is connected to the center of the rotating frame, both ends of the rotating shaft are rotatably assembled on the first bearing frame and the second bearing frame, the first bearing frame and the second bearing frame are fixed on the elbow pipe segment and the straight pipe segment respectively, one side of the cleaning pipe segment corresponding to the straight pipe segment is provided with a sealing plate, one side of the cleaning pipe segment corresponding to the elbow pipe segment is open, and a cleaning port is arranged in the radial direction of the cleaning pipe segment, the cleaning port is used for being communicated with a dust collector, and the breather pipe can be quickly and efficiently cleaned, so that the breather pipe is prevented from being blocked.

Description

Technical Field

[0001] This utility model relates to an easy-to-clean vent pipe for oil storage tanks. Background Technology

[0002] Gas station storage tanks need to be equipped with vent pipes as key equipment for oil vapor recovery and pressure regulation. Their core function is to balance the pressure inside and outside the tank, safely release oil vapors, and prevent spills and tank damage. Figure 1 As shown, during the refueling process, the oil level rises in the tank, compressing the internal air. The vent pipe expels this air, preventing excessive pressure inside the tank, which could lead to refueling difficulties or tank deformation. The vent pipe typically consists of a connecting section, a horizontal section, and a vertical section. In winter, due to condensation, oil easily condenses in the horizontal section, forming a "water bag." This can cause the horizontal section to be liquid-sealed, affecting the normal ventilation function of the vent pipe. Furthermore, over long-term use, the vent pipe section accumulates dust, insect carcasses, bird droppings, oil deposits, and other impurities. These impurities can easily clog the connection between the horizontal and vertical sections, leading to pipe blockage.

[0003] To solve the above problems, the traditional method usually requires periodically disassembling and disassembling the various parts of the ventilation tube for internal cleaning, which is inefficient and poses safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide an easy-to-clean vent pipe for oil storage tanks, which can quickly and efficiently clean the inside of the vent pipe to prevent blockage.

[0005] The technical solution of this utility model is as follows: A vent pipe for an easy-to-clean oil storage tank includes: The connecting pipe section is used to connect to the oil storage tank via a flange, and its axis is set vertically. The vertical pipe section is set with its axis vertically, and its upper end is controllably connected to the atmosphere through a special protective component; A horizontal pipe section is placed between the connecting pipe section and the vertical pipe section to form a ventilation channel that is interconnected with each other. The horizontal pipe section is inclined and gradually rises from the vertical pipe section towards the connecting pipe section. The end of the horizontal pipe section near the vertical pipe section includes a bend section and a straight pipe section. A movable pipe section is detachably installed between the bend section and the straight pipe section. The cleaning mechanism includes a cleaning section of the same size as the movable section. The cleaning section and the movable section are arranged side by side and connected by a rotating frame. A rotating shaft is connected to the center of the rotating frame. The two ends of the rotating shaft are rotatably mounted on the first and second bearing frames, respectively. The first and second bearing frames are fixed on the curved section and the straight section, respectively. The cleaning section has a sealing plate on the side corresponding to the straight section and an opening on the side corresponding to the curved section. The cleaning section has a cleaning port in the radial direction for communicating with a vacuum cleaner. When working, the cleaning mechanism has a working position for sealing and connecting the movable section with the curved section and the straight section, respectively, and a cleaning position for sealing and connecting the cleaning section with the curved section and the straight section, respectively.

[0006] Based on the above scheme, the following improvements are made: both the bend and straight pipe sections are equipped with guide ring plates on their end faces. The guide ring plates have a trumpet-shaped structure to form a guiding structure.

[0007] Based on the above scheme, the following improvements are made: both the bend and straight pipe sections are provided with an elastic sealing layer at their end faces.

[0008] Based on the above scheme, the following improvements are made: a crank handle is provided at one end of the rotating shaft near the straight pipe section to drive the rotating shaft to rotate.

[0009] Based on the above solution, the following improvements are made: the cleaning mechanism is made of a non-metallic material to prevent sparks from being generated during operation.

[0010] The beneficial effects of this technical solution are as follows: When using an easy-to-clean oil storage tank vent pipe, during normal operation, the movable section of the cleaning mechanism is sealed between the curved section and the straight section, serving as part of the horizontal pipe section and participating in the venting process. After a period of time, it can be cleaned periodically. During cleaning, a rotating frame is driven by a rotating shaft, which in turn rotates the movable section and the cleaning section 180 degrees, completing the position exchange between them. A vacuum cleaner can then be connected to the cleaning port of the cleaning section for suction. Before replacing the cleaning section, because the horizontal pipe section is inclined, the condensate inside flows towards the curved section. The dirt inside the vertical pipe section falls into the curved pipe section due to gravity. During the unscrewing of the movable pipe section, liquid will flow out, requiring a collection bin to be placed below. When the cleaning pipe section enters between the straight and curved pipe sections, the sealing plate of the cleaning pipe section will close the side facing the oil tank, leaving some open towards the vertical pipe section. This allows the vacuum cleaner's suction power to primarily target the curved and vertical pipe sections that need cleaning, achieving targeted cleaning. Of course, if the vacuum cleaner is insufficient, a cleaning tool can be used to directly clean the area between the straight and curved pipe sections before either the cleaning or movable pipe section enters. Therefore, the cleaning mechanism of this application has the advantages of convenient and quick operation and high cleaning efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram illustrating the connection relationship between the oil tank and the vent pipe in the existing technology. Figure 2 This is a schematic diagram of a specific embodiment of the easy-to-clean oil storage tank vent pipe of this utility model. Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 for Figure 3 A magnified view of a section at point B in the middle; In the diagram: 1-Tank truck, 2-Storage tank, 3-Ventilation pipe, 31-Connecting pipe section, 32-Vertical pipe section, 33-Horizontal pipe section, 331-Bend pipe section, 3311-Guide ring plate of bend pipe section, 332-Straight pipe section, 3321-Guide ring plate of straight pipe section, 333-Moving pipe section, 4-Cleaning mechanism, 41-Cleaning pipe section, 411-Sealing plate, 412-Cleaning port, 42-Rotating frame, 43-Rotating shaft, 431-Internal hexagonal groove, 44-First bearing bracket, 45-Second bearing bracket, 5-Handle, 51-External hexagonal plug end. Detailed Implementation

[0012] 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 only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0013] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0014] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0015] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0016] A specific embodiment of the easy-to-clean vent pipe for an oil storage tank according to this utility model is as follows: Figure 2-4 As shown, the easy-to-clean oil storage tank vent pipe includes a connecting pipe section 31, a horizontal pipe section 33, and a vertical pipe section 32 that are connected in sequence starting from oil storage tank 2.

[0017] The connecting pipe section 31 is used to connect to the oil storage tank 2 via a flange, and the axis of the connecting pipe section 31 is set vertically.

[0018] The vertical pipe section 32 is set vertically, and its upper end is connected to the atmosphere in a controlled manner through special protective components, including flame arresters, breather valves and other components.

[0019] A horizontal pipe section 33 is connected between a connecting pipe section 31 and a vertical pipe section 32 to form a ventilation channel that is interconnected. The axis of the horizontal pipe section 33 is inclined and gradually rises from the vertical pipe section 32 toward the connecting pipe section 31. The end of the horizontal pipe section 33 near the vertical pipe section 32 includes a bent pipe section 331 and a straight pipe section 332. A movable pipe section 333 is detachably provided between the bent pipe section 331 and the straight pipe section 332.

[0020] The cleaning mechanism 4 includes a cleaning section 41 with the same dimensions as the movable section 333. The cleaning section 41 is arranged side by side with the movable section 333 and connected by a rotating frame 42. A rotating shaft 43 is connected to the center of the rotating frame 42. The two ends of the rotating shaft 43 are rotatably mounted on a first bearing frame 44 and a second bearing frame 45, respectively. The first bearing frame 44 and the second bearing frame 45 are fixed on the bent section 331 and the straight section 332, respectively. A sealing plate 411 is provided on one side of the cleaning section 41 corresponding to the straight section 332. The cleaning section 41 has an opening on one side corresponding to the bent section 331. A cleaning port 412 is provided radially on the cleaning section 41 for communicating with a vacuum cleaner. When working, the cleaning mechanism 4 has a working position that seals and connects the movable section 333 with the bent section 331 and the straight section 332, respectively, and a cleaning position that seals and connects the cleaning section 41 with the bent section 331 and the straight section 332, respectively.

[0021] Both the bend section 331 and the straight section 332 have guide ring plates on their end faces. The guide ring plates have a trumpet-shaped structure to form a guiding structure. Both the bend section 331 and the straight section 332 have elastic sealing layers on their end faces. A crank 5 is provided at the end of the rotating shaft 43 near the straight section 332 to drive the rotating shaft 43 to rotate. The cleaning mechanism 4 is made of non-metallic material to prevent sparks from being generated during operation.

[0022] When the easy-to-clean oil storage tank 2 vent pipe 3 is in use, during normal operation, the movable pipe section 333 of the cleaning mechanism 4 is sealed between the bent pipe section 331 and the straight pipe section 332, as part of the horizontal pipe section 33, and normally participates in the ventilation work. After a period of time, it can be cleaned periodically. During cleaning, the rotating frame 42 is rotated by the rotating shaft 43, and the rotating frame 42 drives the movable pipe section 333 and the cleaning pipe section 41 to rotate 180 degrees, completing the position exchange between the two. A vacuum cleaner can then be connected to the cleaning port 412 of the cleaning pipe section 41 for suction. Before replacing the cleaning pipe section 41, because the horizontal pipe section 33 is set at an inclination, the condensate in it flows towards the bent pipe section 331, while the vertical pipe section 3... The dirt inside section 2 falls onto the curved section 331 due to gravity. During the unscrewing of the movable section 333, liquid will flow out, requiring a collection bin to be placed below. When the cleaning section 41 enters between the straight section 332 and the curved section 331, the sealing plate 411 of the cleaning section 41 will close the side facing the oil tank, leaving some open towards the vertical section 32. This allows the vacuum cleaner's suction to primarily target the curved section 331 and the vertical section 32 that need cleaning, achieving targeted cleaning. Of course, if the vacuum cleaner is insufficient, a cleaning tool can be used to directly clean the area between the straight section 332 and the curved section 331 before the cleaning section 41 and the movable section 333 enter. Therefore, the cleaning mechanism 4 of this application has the advantages of convenient and quick operation and high cleaning efficiency.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A vent pipe for an easy-to-clean oil storage tank, comprising: The connecting pipe section is used to connect to the oil storage tank via a flange, and its axis is set vertically. The vertical pipe section is set with its axis vertically, and its upper end is controllably connected to the atmosphere through a special protective component; A horizontal pipe section is placed between the connecting pipe section and the vertical pipe section to form a ventilation channel that is interconnected with each other. Its characteristic is that the axis of the horizontal pipe section is inclined and gradually rises from the vertical pipe section to the connecting pipe section. The end of the horizontal pipe section near the vertical pipe section includes a bent pipe section and a straight pipe section, and a movable pipe section is detachably provided between the bent pipe section and the straight pipe section. The cleaning mechanism includes a cleaning section of the same size as the movable section. The cleaning section and the movable section are arranged side by side and connected by a rotating frame. A rotating shaft is connected to the center of the rotating frame. The two ends of the rotating shaft are rotatably mounted on the first and second bearing frames, respectively. The first and second bearing frames are fixed on the curved section and the straight section, respectively. The cleaning section has a sealing plate on the side corresponding to the straight section and an opening on the side corresponding to the curved section. The cleaning section has a cleaning port in the radial direction for communicating with a vacuum cleaner. When working, the cleaning mechanism has a working position for sealing and connecting the movable section with the curved section and the straight section, respectively, and a cleaning position for sealing and connecting the cleaning section with the curved section and the straight section, respectively.

2. The easy-to-clean vent pipe for an oil storage tank according to claim 1, characterized in that, Both the bend and straight pipe sections are equipped with guide ring plates on their end faces. The guide ring plates have a trumpet-shaped structure to form a guiding structure.

3. The easy-to-clean vent pipe for an oil storage tank according to claim 1, characterized in that, Both the bends and straight sections are equipped with elastic sealing layers at their ends.

4. The easy-to-clean vent pipe for an oil storage tank according to claim 1, characterized in that, A crank is provided at one end of the shaft near the straight pipe section to drive the shaft to rotate.

5. The easy-to-clean vent pipe for an oil storage tank according to claim 1, characterized in that, The cleaning mechanism is made of non-metallic material.

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