A new type of precipitator

Abstract

This utility model provides a novel sedimentation device, comprising a shell, with nozzles A and B installed at the top of the shell, and several oil leakage holes at the bottom of the shell; an oil collector is installed below the bottom of the shell, and nozzle C is installed at the bottom of the oil collector; it also includes a limiting block, a float, a guide shaft, and a shell boss; the float is disposed inside the shell and located directly above the oil leakage holes; the shell boss is fixed to the bottom of the shell and located inside the oil collector; a guide hole is provided at the bottom of the shell, with the wall of the guide hole aligned with the inner wall of the shell boss; a flow-limiting hole is provided at the bottom of the shell boss; the limiting block is fixed to the inner wall of the shell and located above the float; the guide shaft is slidably installed inside the shell boss, with its top fixedly connected to the bottom of the float, and its upper part slidingly engaged with the guide hole, forming a gap between the outer wall of the guide shaft and the guide hole when the float rises to contact the limiting block. This utility model has a simple structure, reliable operation, large discharge flow, and does not affect the operation of the ventilation and pressurization system when not discharging.

Description

Technical Field

[0001] This utility model relates to the field of fuel system accessories technology, specifically to a novel sedimentation device. Background Technology

[0002] By installing a settler on the fuel tank venting and pressurization line, oil that accidentally enters the line can be drained, preventing it from contaminating other accessories or polluting onboard equipment. To avoid leaks affecting the venting and pressurization system, leaking lines are typically connected to the settler via flow-limiting orifices. This results in a small discharge flow rate, preventing timely drainage and creating a risk of oil re-entering the venting and pressurization line. Therefore, a settler with a large discharge flow rate that does not affect the operation of the venting and pressurization system when not in use for discharge needs to be designed. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a novel settler with a simple structure and reliable operation. By designing a float assembly in the settler, the float assembly opens when the oil in the settler reaches a certain level, allowing the settler to quickly discharge oil into the leaking oil pipeline. A damping device is also designed to delay the float assembly's descent and closure, achieving a more thorough oil discharge from the settler. After the oil discharge is completed, the float assembly falls and closes, isolating the venting and pressurizing pipeline from the leaking oil pipeline.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A novel sedimentation device includes a hollow shell with nozzles A and B installed at the top and several oil leakage holes at the bottom. An oil collector is installed below the bottom of the shell, and nozzle C is installed at the bottom of the oil collector. The device also includes a limiting block, a float, a guide shaft, and a shell boss. The float is a buoy located inside the shell and directly above the oil leakage holes. The shell boss is a hollow cylinder fixed to the bottom of the shell and located within the oil collector. A guide hole communicating with the shell boss is provided at the bottom of the shell, with the guide hole wall aligned with the inner wall of the shell boss. A flow-limiting hole with a diameter smaller than the guide hole is provided at the bottom of the shell boss. The limiting block is fixed to the inner wall of the shell and located above the float. The guide shaft is slidably installed inside the shell boss, with its top fixedly connected to the bottom of the float and its upper part slidingly engaged with the guide hole. When the float rises to contact the limiting block, the upper part of the guide shaft extends outside the shell boss, and the lower part of the guide shaft is located inside the shell boss, with its outer wall forming a gap between the shell and the guide hole.

[0006] Furthermore, an annular groove is formed by recessing the top of the base plate at the edge of the guide hole, and a guide groove is provided between two adjacent oil leakage holes, with the guide groove communicating with the annular groove. Due to the presence of the annular groove, oil can reliably flow into the guide hole regardless of the circumferential position of the float assembly.

[0007] The beneficial effects of this utility model are as follows:

[0008] This invention features a simple structure, reliable operation, large discharge flow, and does not affect the operation of the ventilation and pressurization system when not discharging. It enables rapid oil drainage after the oil from the tank enters the settler, and a damping device is designed to delay the closing speed of the float assembly, ensuring thorough drainage of the oil from the settler. After drainage, the float assembly closes, isolating the settler from the leaking pipeline. Attached Figure Description

[0009] The present invention will now be described in further detail with reference to the accompanying drawings.

[0010] Figure 1 This is a schematic diagram of the precipitator described in this utility model.

[0011] Figure 2 for Figure 1 View from direction A (only the guide axis is shown).

[0012] Figure 3 for Figure 1 View from the BB direction (only the housing is shown).

[0013] The figure shows: 1-upper cover plate, 2-nozzle A, 3-nozzle B, 4-shell, 5-limiting block, 6-float, 7-guide shaft, 8-first sealing ring, 9-bottom plate, 10-flow limiting hole, 11-nozzle C, 12-shell boss, 13-oil collector, 14-first bolt assembly, 15-second sealing ring, 16-third sealing ring, 17-second bolt assembly, 18-oil leakage hole, 19-flow guide groove, 20-guide hole, 21-annular groove. Detailed Implementation

[0014] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. The described embodiments are merely some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0016] In the description of this utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. It should be noted that the terms "comprising," "including," or any other variations are intended to cover a 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. Example

[0017] like Figure 1-3 As shown, this embodiment provides a novel sedimentation device, including an upper cover plate 1, a shell 4, a limiting block 5, a float 6, a guide shaft 7, a bottom plate 9, a shell boss 12, and an oil collector 13.

[0018] The shell 4 is a hollow cylinder with openings at the top and bottom, which constitutes the main cavity of the settler and is used to contain the oil to be treated.

[0019] The upper cover plate 1 covers the opening at the top of the housing 4. The outer edge of the upper cover plate 1 is detachably connected to the top of the housing 4 by several second bolt assemblies 17. A third sealing ring 16 is provided between the bottom of the upper cover plate 1 and the top of the housing 4. A nozzle A2 and a nozzle B3 are installed on the upper cover plate 1 at the top of the housing 4. The lower end of the nozzle A2 is fixed to the upper cover plate 1 and communicates with the inside of the housing 4. The upper end of the nozzle A2 is connected to the oil tank and serves as an oil inlet, which is the channel for oil to enter the housing 4. The lower end of the nozzle B3 is fixed to the upper cover plate 1 and communicates with the inside of the housing 4. At the same time, the lower end of the nozzle B3 extends downward into the inside of the housing 4. The upper end of the nozzle B3 is connected to the venting and pressurizing pipeline, which can both balance the pressure inside the housing 4 and pressurize the housing 4 when needed (such as after draining oil).

[0020] The base plate 9 is integrally fixed to the bottom of the housing 4 and seals the bottom of the housing 4. A guide hole 20 is provided in the center of the base plate 9, penetrating the upper and lower surfaces of the base plate 9, providing a sliding channel for the guide shaft 7 of the float assembly. Four oil leakage holes 18 are evenly provided on the base plate 9 around the guide holes 20. The oil leakage holes 18 are the main oil discharge channels of the settler. When the float 6 floats and the first sealing ring 8 fails, most of the oil in the housing 4 flows directly into the oil collector 13 through this hole. An annular groove 21 is formed by recessing the top of the base plate 9 at the edge of the guide hole 20, serving as an annular flow collection channel to collect the oil in the guide groove 19 and the housing 4, ensuring that the oil can flow into the guide hole 20 evenly and reliably from any direction. A guide groove 19 is provided between each pair of adjacent oil leakage holes 18. The guide grooves 19 are all connected to the annular groove 21 to guide the oil in the housing 4 (especially the area far from the guide hole 20) to the annular groove 21 and the guide hole 20 area, assisting in the flow guidance.

[0021] The oil collector 13 is connected to the bottom of the housing 4 by several first bolt assemblies 14, collecting oil discharged from the housing 4 through the oil leakage hole 18 and the flow restriction hole 10. A second sealing ring 15 is provided between the bottom of the housing 4 and the top of the oil collector 13 to achieve an airtight connection. Both the first bolt assembly 14 and the second bolt assembly 17 are composed of threaded bolts and nuts. A nozzle C11 communicating with the interior of the oil collector 13 is provided at the bottom of the oil collector 13, and the nozzle C11 is connected to the oil leakage pipeline outside the oil collector 13.

[0022] The shell boss 12 is a hollow cylinder integrally fixed to the bottom of the shell 4 and located inside the oil collector 13; the shell boss 12 is located directly below the guide hole 20, and the wall of the guide hole 20 is aligned with the inner wall of the shell boss 12 (the diameter of the guide hole 20 is equal to the inner diameter of the shell boss 12); a flow-limiting hole 10 with a diameter smaller than that of the guide hole 20 is provided at the bottom of the shell boss 12, and the shell boss 12 is connected to the oil collector 13 through the flow-limiting hole 10.

[0023] The float 6 is a float located inside the housing 4 and directly above the oil leakage hole 18. It can float in the oil and rises with the rise of the oil in the housing 4. When the oil level rises, the float 6 senses changes in the oil level. When the oil level rises, the buoyancy drives the float assembly to move upward, triggering the seal failure and the start of oil drainage. When the oil level falls, it falls with the float and eventually resets to close the seal. A first annular sealing ring 8 is provided at the bottom of the float 6. The first sealing ring 8 is located outside the oil leakage hole 18 and the guide groove 19 (after the bottom of the float 6 contacts the top of the base plate 9, the oil leakage hole 18 and the guide groove 19 are surrounded by the first sealing ring 8).

[0024] The limiting block 5 is fixed to the inner wall of the housing 4 and located above the float 6. It is used to limit the upward movement distance of the float 6 and ensure that the lower end of the guide shaft 7 remains within the guide hole 20. At least one limiting block 5 is required. It limits the maximum upward height of the float assembly, ensuring that the lower end of the guide shaft 7 is always within the guide hole 20 and the housing boss 12, preventing it from dislodging and guaranteeing the reset guiding function.

[0025] The guide shaft 7 is slidably installed inside the housing boss 12. Its top is fixedly connected to the bottom of the float 6, and its upper part is slidably fitted with the guide hole 20 (its upper complete cylinder slides within the guide hole 20 to form a seal). When the float 6 floats up to contact the limiting block 5, the upper part of the guide shaft 7 extends out of the housing boss 12, and the lower part of the guide shaft 7 is located inside the housing boss 12, with its outer wall forming a gap between the housing 4 and the housing boss 12 between them. Specifically, the upper cross-section of the guide shaft 7 is circular, and the lower part of the guide shaft 7 is flattened along its length to form an arc-shaped cross-section (e.g., ...). Figure 2 As shown, the flattened portion creates a gap between the guide shaft 7 and the guide hole 20 while maintaining its guiding function. Simultaneously, the length from top to bottom of the guide shaft 7 is less than the length from top to bottom inner side of the housing boss 12. The float 6, guide shaft 7, and first sealing ring 8 are fixed together to form a float assembly located within the housing 4 and capable of moving up and down within the housing 4.

[0026] Working principle:

[0027] Oil from the tank enters the housing 4 through nozzle A2. As the oil level rises, the buoyancy of float 6 gradually increases. When the oil level reaches a certain height, the buoyancy of float 6 overcomes the weight of the float assembly and the pressure inside the housing 4, and it begins to move upward. The sealing effect of the first sealing ring 8 fails. After the seal fails, the area of ​​the pressure inside the housing 4 acting on the lower surface of float 6 increases, which significantly increases the upward force on the float assembly. The float assembly moves upward rapidly, and its rising position is limited by the limit block 5.

[0028] After the float assembly rises, the oil in the housing 4 can flow into the oil collector 13 through the oil leakage hole 18 on the bottom plate 9. The oil collector 13 is the main oil discharge channel of the housing 4. At the same time, after the guide shaft 7 rises, the round part (upper part) of the guide shaft 7 comes out of the guide hole 20, and the flattened part (lower part) of the guide shaft 7 remaining in the guide hole 20 forms a gap with the guide hole 20. The oil flows through the guide groove 19 on the bottom plate 9 to the annular groove 21, and then flows into the gap between the guide shaft 7 and the guide hole 20, and then into the housing boss 12. Finally, it drips into the oil collector 13 from the flow restriction hole 10 at the bottom of the housing boss 12. Since the bottom plate 9 has an annular groove 21, the oil can reliably flow into the guide hole 20 and the housing boss 12 in any circumferential position of the float assembly.

[0029] As the oil level in the housing 4 gradually decreases, the float assembly also gradually falls with the oil level. At this time, the oil entering the housing boss 12 can only drip into the oil collector 13 through the flow-limiting hole 10. The flow-limiting hole 10 restricts the outflow speed of the oil in the guide hole 20. During the fall of the float assembly, the complete circumference (upper part) of the guide shaft 7 gradually enters the housing boss 12 through the guide hole 20. The oil retained in the housing boss 12 dampens the fall of the float assembly, causing the float assembly to fall and close with a lag. Before closing, the oil in the housing 4 can be discharged relatively thoroughly into the oil collector 13 through the oil leakage hole 18.

[0030] When the oil in the housing boss 12 has basically dripped out, the float assembly falls into place. Under the action of its own gravity and the internal pressure of the housing 4, the float assembly adheres tightly to the upper surface of the base plate 9, and the first sealing ring 8 achieves a seal, thus isolating the housing 4 from the oil collector 13.

[0031] This invention ingeniously utilizes buoyancy, hydraulic pressure, damping, and precision guidance to achieve the functions of automatically opening and closing oil discharge based on oil level, coordinating primary and secondary oil discharge channels, and delaying closure to ensure thorough oil discharge.

[0032] Other aspects of this utility model that are not detailed herein are all conventional techniques known to those skilled in the art.

[0033] It should be noted that the terms “comprising,” “including,” or any other variations 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 process, method, article, or apparatus.

[0034] The scope of protection of this utility model is not limited to the technical solutions disclosed in the specific embodiments. Any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the technical essence of this utility model shall fall within the scope of protection of this utility model.

Claims

1. A new type of precipitator, comprising a hollow shell (4), a nozzle A (2) and a nozzle B (3) are installed on the top of the shell (4), a plurality of oil leakage holes (18) are opened on the bottom of the shell (4); an oil collector (13) is installed below the bottom of the shell (4), a nozzle C (11) is installed on the bottom of the oil collector (13); characterized in that: It also includes a limiting block (5), a float (6), a guide shaft (7), and a housing boss (12); The float (6) is a float located inside the housing (4) and directly above the oil leakage hole (18); The shell boss (12) is a hollow cylinder fixed to the bottom of the shell (4) and located inside the oil collector (13); the bottom of the shell (4) is provided with a guide hole (20) communicating with the shell boss (12), and the wall of the guide hole (20) is aligned with the inner wall of the shell boss (12); a flow-limiting hole (10) with a diameter smaller than the guide hole (20) is provided at the bottom of the shell boss (12). The limiting block (5) is fixed on the inner wall of the housing (4) and located above the float (6); The guide shaft (7) is slidably installed inside the housing boss (12), its top is fixedly connected to the bottom of the float (6), and its upper part is slidably engaged with the guide hole (20). When the float (6) floats up to contact the limiting block (5), the lower part of the guide shaft (7) is located inside the housing boss (12), and a gap is formed between its outer wall and the guide hole (20) connecting the housing (4) and the housing boss (12).

2. The new type of precipitator according to claim 1, characterized in that: The shell (4) is a cylindrical body with openings at the top and bottom. A top cover plate (1) is detachably connected to the opening at the top of the shell (4), and a bottom plate (9) is integrally fixed to the opening at the bottom of the shell (4). The nozzle A (2) and nozzle B (3) are installed on the top cover plate (1) and communicate with the inside of the shell (4). The guide hole (20) and the oil leakage hole (18) both penetrate the bottom plate (9), and the oil leakage hole (18) is located around the guide hole (20).

3. The new type of precipitator according to claim 2, characterized in that: An annular groove (21) is formed by recessing the top of the base plate (9) at the edge of the guide hole (20). A guide groove (19) is provided between two adjacent oil leakage holes (18), and the guide groove (19) is connected to the annular groove (21).

4. The new type of precipitator according to claim 3, characterized in that: The number of oil leakage holes (18) is four and is set on the bottom plate (9), while the number of guide grooves (19) is four.

5. The novel precipitator according to claim 3, characterized in that: A first sealing ring (8) is provided at the bottom of the float (6), and the first sealing ring (8) is located around the oil leakage hole (18) and the guide groove (19).

6. The new type of precipitator according to claim 2, characterized in that: A second sealing ring (15) is provided between the bottom of the housing (4) and the top of the oil collector (13), and a third sealing ring (16) is provided between the bottom of the upper cover plate (1) and the top of the housing (4).

7. The new type of precipitator according to claim 1, characterized in that: The lower end of the nozzle B (3) extends downward into the housing (4).

8. The new type of precipitator according to claim 1, characterized in that: The number of the limiting blocks (5) is at least one.

9. The new type of precipitator according to claim 1, characterized in that: The upper cross section of the guide shaft (7) is circular, and the lower cross section of the guide shaft (7) is arc-shaped.

10. The novel precipitator as claimed in claim 1, wherein: The length from top to bottom of the guide shaft (7) is less than the length from top to bottom inside of the housing boss (12).

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