Anti-tilt and anti-swing structure for marine compressor oil tank

Abstract

The embodiment of the invention discloses an anti-inclination and anti-swing structure for a marine compressor oil tank. According to the structure, the first baffle and the second baffle are arranged in the oil tank body, the containing space in the tank body is divided into the oil return cavity, the buffering cavity and the oil suction cavity, the first oil return opening and the second oil return opening are connected with the oil return cavity, and the first oil suction opening and the second oil suction opening are connected with the oil suction cavity; liquid can enter the oil return cavity from the outside through the first oil return opening and the second oil return opening, flow into the buffer cavity from the oil return cavity through the first gap, flow into the oil suction cavity from the buffer cavity through the second gap and flow out of the oil suction cavity through the first oil suction opening and the second oil suction opening. According to the embodiment of the invention, the containing space in the oil tank is separated by additionally arranging the baffle plate, so that the volume of the oil suction cavity is further reduced, and the resistance to inclination and swing of the marine compressor oil tank is improved.

Description

Technical Field

[0001] The present application relates to the technical field of marine compressor oil tanks, and in particular to an anti-tilting and anti-swaying structure of a marine compressor oil tank. Background Art

[0002] Most existing oil tanks are designed to divide the oil tank into two chambers, the left chamber for the oil return chamber and the right chamber for the oil suction chamber. With the barrier of the baffle, the oil return chamber and the oil suction chamber have the longest hydraulic distance, which is beneficial to increase the standing time of the oil and facilitate exhaust, etc. Figure 1 As shown, this is a top-down schematic diagram of a traditional oil tank, and the red arrow is a schematic diagram of the oil flow path.

[0003] In conventional designs, the positions of the main oil pump and auxiliary oil pump suction ports are generally only considered to be reasonably arranged and as far away from the oil return port as possible. Therefore, the suction ports are generally close to the tank wall or corner. When the tank rolls or sways, it is easy for the oil pump to fail to suck oil. For ship power units, there will be static tilt and dynamic sway on board. Static tilt will cause the suction point to fail to suck oil when the oil level is low. Summary of the invention

[0004] The purpose of the present invention is to make some improvements to the marine fuel tank so as to avoid the above problems.

[0005] An embodiment of the present invention provides a marine compressor oil tank anti-tilting and anti-swaying structure, comprising: a box body;

[0006] The box body is in the shape of a cuboid, including a rectangular top surface and a bottom surface, and a first side wall, a second side wall, a third side wall and a fourth side wall sequentially arranged between the top surface and the bottom surface;

[0007] The inner surface of the fourth side wall is provided with a first baffle, the first baffle abuts against the top surface and the bottom surface and has a first gap between the second side wall, and the first baffle cooperates with the first side wall, the second side wall, the fourth side wall, the top surface and the bottom surface to form an oil return chamber;

[0008] The surface of the first baffle plate corresponding to the third side wall is provided with a second baffle plate, the second baffle plate abuts against the top surface and the bottom surface and a second gap is formed between the second baffle plates, the second baffle plate cooperates with the first baffle plate, the second side wall, the third side wall, the top surface and the bottom surface to form a buffer cavity, and the second baffle plate cooperates with the first baffle plate, the third side wall, the fourth side wall, the top surface and the bottom surface to form an oil suction cavity;

[0009] The first baffle plate is provided with a first oil return port corresponding to the oil return chamber, and the fourth baffle plate is provided with a second oil return port corresponding to the oil return chamber;

[0010] The fourth baffle plate is provided with a first oil suction port corresponding to the oil suction cavity, and the third baffle plate is provided with a second oil suction port corresponding to the oil suction cavity;

[0011] Liquid can enter the oil return chamber from the outside through the first oil return port and the second oil return port, flow from the oil return chamber through the first gap into the buffer chamber, flow from the buffer chamber through the second gap into the oil suction chamber, and flow out from the oil suction chamber through the first oil suction port and the second oil suction port.

[0012] In some embodiments, the first side wall and the third side wall correspond to short sides of the top surface and the bottom surface, and the second side wall and the fourth side wall correspond to long sides of the top surface and the bottom surface.

[0013] In some embodiments, the first baffle is disposed corresponding to the center of the fourth baffle and is parallel to the first side wall.

[0014] In some embodiments, the second baffle is disposed corresponding to the center of the third side wall and is parallel to the second side wall.

[0015] In some embodiments, the areas of the first gap and the second gap are both larger than the sum of the diameters of the first oil return port and the second oil return port.

[0016] In some embodiments, areas of the first gap and the second gap are both larger than the sum of diameters of the first oil suction port and the second oil suction port.

[0017] In some embodiments, the buffer cavity is the same size as the oil suction cavity.

[0018] In some embodiments, the size of the oil return chamber is the same as the sum of the sizes of the buffer chamber and the oil suction chamber.

[0019] In some embodiments, the first oil return port and the second oil return port are arranged close to the top surface, and the first oil suction port and the second oil suction port are arranged close to the bottom surface.

[0020] In some embodiments, the oil suction pipeline of the oil suction pump can enter the oil suction cavity through the first oil suction port and the second oil suction port to the center of the bottom of the oil suction cavity.

[0021] In the above-mentioned embodiment of the present application, the accommodating space in the oil tank is divided by adding a baffle, thereby further reducing the volume of the oil suction chamber to improve the resistance performance to the tilt and sway of the marine compressor oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings illustrate generally, by way of example and not limitation, various embodiments discussed herein.

[0023] Figure 1 This is a schematic diagram of a traditional fuel tank from a top view;

[0024] Figure 2 This is the schematic diagram of the oil tank liquid level height;

[0025] Figure 3 To optimize the top view schematic of the fuel tank;

[0026] Figure 4 It is a schematic diagram of a top view cross-sectional structure of an anti-tilt and anti-sway structure for a marine compressor oil tank according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to enable a more detailed understanding of the features and technical contents of the embodiments of the present application, the implementation of the embodiments of the present application is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present application.

[0028] In the embodiments of the present application, it should be noted that, unless otherwise specified and limited, the term "connection" should be understood in a broad sense. For example, it can be an electrical connection or a connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0029] It should be noted that the terms "first\second\third" involved in the embodiments of the present application are only used to distinguish similar objects, and do not represent a specific order for the objects. It is understandable that the specific order or sequence of "first\second\third" can be interchanged where permitted. It should be understood that the objects distinguished by "first\second\third" can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0030] like Figure 2 As shown, this is a schematic diagram of the cross-section of the oil tank liquid level height, represented by the thin black solid line in the oil tank.

[0031] First, we will conduct a theoretical analysis. The principle of the oil tank liquid level height during static tilt. Figure 2 As shown in the figure, this is a schematic diagram of the cross-section of the oil tank liquid level height. The black thin solid line in the oil tank represents the liquid level line when the oil tank is in a horizontal state, where H represents its liquid level height, the red thin solid line represents the liquid level line of the oil tank at an inclination angle of α, L represents the length or width of the oil tank, e represents the eccentricity of any position of the oil tank from the center, and ΔH represents the change in liquid level height of the oil tank at an eccentricity of e at an inclination angle of α.

[0032] according to Figure 2 The geometric relationship can be obtained

[0033] ΔH=etanα

[0034] When the eccentricity e=0, ΔH=0, that is, the liquid level height at the center of the oil tank is constant and does not change with the inclination angle.

[0035] When the eccentricity e=L / 2,

[0036]

[0037] At this position, ΔH is proportional to L, that is, the smaller the length or width L of the oil tank, the smaller the change of the liquid level height with the inclination angle.

[0038] When the oil pump is close to the tank wall, H-ΔH needs to be greater than the required value of the minimum oil suction level height of the oil pump so that the oil pump can suck oil normally. It can be seen that the larger H is, the more conducive it is to achieve this.

[0039] Therefore, there are three aspects to improve the design of tank level stability:

[0040] First: Make the oil suction port as close as possible to the geometric center of the length and width of the oil tank. The closer to the center, the smaller the change of the liquid level with the inclination angle, which is conducive to ensuring the oil supply of the oil pump;

[0041] Second: Make the length and width of the oil tank smaller. The smaller the length and width of the oil tank, the smaller the change of the liquid level height with the inclination angle, which is conducive to the stability of the liquid level and ensures oil suction. However, the length and width of the oil tank are limited by the requirements of oil storage capacity and free surface area, and generally cannot be reduced too much. Therefore, it can be indirectly achieved by reasonably increasing the baffle to make the length of the oil suction chamber as small as possible, such as Figure 3 The figure shows the top view schematic diagram of the anti-tilt fuel tank we optimized;

[0042] Third: Whenever possible, try to increase the initial height of the liquid level in the horizontal state. A higher initial height is more conducive to ensuring the minimum required liquid level.

[0043] pass Figure 3 It can be seen that by adding baffles, the size of the oil suction chamber continues to decrease, and at the same time the hydraulic distance between oil suction and oil return is made longer. The oil suction ports of the main pump and the oil suction pump are both set at the center of the oil suction chamber. In theory, the liquid level height will not change with the inclination angle, and at most there will be a small change. In this way, the oil suction of the oil pump is guaranteed.

[0044] However, it should be noted that, considering the feasibility of manufacturing, it is impossible to add too many baffles in the fuel tank, otherwise the manufacturing and maintenance of the fuel tank will become difficult, because generally each independent space separated by a baffle in the fuel tank needs to be equipped with a separate manhole, and too many baffles will require the addition of the same number of manholes. Therefore, in general, Figure 3 The double baffle shown in the figure can be regarded as a relatively balanced solution that takes into account both liquid level stability and feasibility.

[0045] In addition to the static inclination, the ship will also have dynamic swaying, which will cause a "surge phenomenon" in the fuel tank. The liquid will fluctuate due to the inertia of acceleration, causing the liquid level near the tank wall to be lower than the liquid level under the static inclination. There are two main improvement measures for swaying:

[0046] First: When calculating the minimum liquid level at static inclination, leave as much margin as possible;

[0047] Second: The baffle acts as a wave-breaking plate, dividing the internal space of the tank into smaller parts, appropriately reducing the total amount of liquid in each liquid unit. At the same time, the liquid will hit the baffle during the swing to consume kinetic energy, so that the liquid level tends to be stable. Its principle is similar to the wave-breaking structure of traditional tank trucks.

[0048] Combine the following Figure 4 The embodiment of the present invention is described in detail. The embodiment of the present invention provides an anti-tilting and anti-swaying structure for a marine compressor oil tank, such as Figure 4 As shown, it includes: a box body 1.

[0049] The box body 1 is in the shape of a cuboid, including a rectangular top surface and a bottom surface, and a first side wall 11, a second side wall 12, a third side wall 13 and a fourth side wall 14 sequentially arranged between the top surface and the bottom surface.

[0050] A first baffle 21 is provided on the inner surface of the fourth side wall 14 , the first baffle 21 abuts against the top surface and the bottom surface and has a first gap 18 with the second side wall 12 , and the first baffle 21 cooperates with the first side wall 11 , the second side wall 12 , the fourth side wall 14 , the top surface and the bottom surface to form an oil return chamber 15 .

[0051] A second baffle plate 22 is provided on the surface of the first baffle plate 21 corresponding to the third side wall 13 side. The second baffle plate 22 abuts against the top surface and the bottom surface and has a second gap 19 between the second baffle plates 22. The second baffle plate 22 cooperates with the first baffle plate 21, the second side wall 12, the third side wall 13, the top surface and the bottom surface to form a buffer cavity 16. The second baffle plate 22 cooperates with the first baffle plate 21, the third side wall 13, the fourth side wall 14, the top surface and the bottom surface to form an oil suction cavity 17.

[0052] The first baffle plate 21 is provided with a first oil return port 31 corresponding to the oil return chamber 15 , and the fourth baffle plate is provided with a second oil return port 32 corresponding to the oil return chamber 15 .

[0053] The fourth baffle plate is provided with a first oil suction port 41 corresponding to the oil suction chamber 17 , and the third baffle plate is provided with a second oil suction port 42 corresponding to the oil suction chamber 17 .

[0054] The liquid can enter the oil return chamber 15 from the outside through the first oil return port 31 and the second oil return port 32, flow from the oil return chamber 15 into the buffer chamber 16 through the first gap 18, flow from the buffer chamber 16 into the oil suction chamber 17 through the second gap 19, and flow out from the oil suction chamber 17 through the first oil suction port 41 and the second oil suction port 42.

[0055] In some embodiments, the first side wall 11 and the third side wall 13 correspond to the short sides of the top surface and the bottom surface, and the second side wall 12 and the fourth side wall 14 correspond to the long sides of the top surface and the bottom surface.

[0056] In some embodiments, the first baffle 21 is disposed corresponding to the center of the fourth baffle and is parallel to the first side wall 11 .

[0057] In some embodiments, the second baffle 22 is disposed corresponding to the center of the third side wall 13 and is parallel to the second side wall 12 .

[0058] In some embodiments, the areas of the first gap 18 and the second gap 19 are both larger than the sum of the diameters of the first oil return port 31 and the second oil return port 32 .

[0059] In some embodiments, the areas of the first gap 18 and the second gap 19 are both larger than the sum of the diameters of the first oil suction port 41 and the second oil suction port 42 .

[0060] In some embodiments, the buffer cavity 16 and the oil suction cavity 17 have the same size.

[0061] In some embodiments, the size of the oil return chamber 15 is the same as the sum of the sizes of the buffer chamber 16 and the oil suction chamber 17 .

[0062] In some embodiments, the first oil return port 31 and the second oil return port 32 are disposed near the top surface, and the first oil suction port 41 and the second oil suction port 42 are disposed near the bottom surface.

[0063] In some embodiments, the oil suction pipeline of the oil suction pump can enter the oil suction chamber 17 through the first oil suction port 41 and the second oil suction port 42 to the bottom center of the oil suction chamber 17 .

[0064] The technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0065] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A marine compressor oil tank anti-tilt and anti-sway structure, characterized in that: include: Box; The box body is in the shape of a cuboid, including a rectangular top surface and a bottom surface, and a first side wall, a second side wall, a third side wall and a fourth side wall sequentially arranged between the top surface and the bottom surface; The inner surface of the fourth side wall is provided with a first baffle, the first baffle abuts against the top surface and the bottom surface and has a first gap between the second side wall, and the first baffle cooperates with the first side wall, the second side wall, the fourth side wall, the top surface and the bottom surface to form an oil return chamber; The surface of the first baffle plate corresponding to the third side wall is provided with a second baffle plate, the second baffle plate abuts against the top surface and the bottom surface and a second gap is formed between the second baffle plates, the second baffle plate cooperates with the first baffle plate, the second side wall, the third side wall, the top surface and the bottom surface to form a buffer cavity, and the second baffle plate cooperates with the first baffle plate, the third side wall, the fourth side wall, the top surface and the bottom surface to form an oil suction cavity; The first baffle plate is provided with a first oil return port corresponding to the oil return chamber, and the fourth baffle plate is provided with a second oil return port corresponding to the oil return chamber; The fourth baffle plate is provided with a first oil suction port corresponding to the oil suction cavity, and the third baffle plate is provided with a second oil suction port corresponding to the oil suction cavity; Liquid can enter the oil return chamber from the outside through the first oil return port and the second oil return port, flow from the oil return chamber through the first gap into the buffer chamber, flow from the buffer chamber through the second gap into the oil suction chamber, and flow out from the oil suction chamber through the first oil suction port and the second oil suction port.

2. The anti-tilting and anti-swaying structure of a marine compressor oil tank according to claim 1, characterized in that: The first side wall and the third side wall correspond to short sides of the top surface and the bottom surface, and the second side wall and the fourth side wall correspond to long sides of the top surface and the bottom surface.

3. The anti-tilting and anti-swaying structure of a marine compressor oil tank according to claim 2, characterized in that: The first baffle is arranged corresponding to the center of the fourth baffle and is parallel to the first side wall.

4. The anti-tilting and anti-swaying structure of a marine compressor oil tank according to claim 3, characterized in that: The second baffle is disposed corresponding to the center of the third side wall and is parallel to the second side wall.

5. The anti-tilting and anti-swaying structure for a marine compressor oil tank according to claim 1, characterized in that: The areas of the first gap and the second gap are both larger than the sum of the diameters of the first oil return port and the second oil return port.

6. The anti-tilting and anti-swaying structure of a marine compressor oil tank according to claim 5, characterized in that: The areas of the first gap and the second gap are both larger than the sum of the diameters of the first oil suction port and the second oil suction port.

7. The anti-tilting and anti-swaying structure of a marine compressor oil tank according to claim 1, characterized in that: The buffer cavity is the same size as the oil suction cavity.

8. The anti-tilting and anti-swaying structure for a marine compressor oil tank according to claim 7, characterized in that: The size of the oil return chamber is the same as the sum of the sizes of the buffer chamber and the oil suction chamber.

9. The anti-tilting and anti-swaying structure of a marine compressor oil tank according to claim 1, characterized in that: The first oil return port and the second oil return port are arranged close to the top surface, and the first oil suction port and the second oil suction port are arranged close to the bottom surface.

10. The anti-tilting and anti-swaying structure of a marine compressor oil tank according to claim 9, characterized in that: The oil suction pipeline of the oil suction pump can enter the oil suction cavity through the first oil suction port and the second oil suction port to the center of the bottom of the oil suction cavity.

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