A filter screen structure for filtering cooling seawater of a marine main engine

Abstract

The utility model relates to a filter screen structure for ship main engine cooling seawater filtration, including with to install in filter bowl inside's filter screen, the bottom end of filter screen is fixed with axial vertical cylindrical base, the top of filter screen is fixed with with base coaxial cylindrical support seat, the left and right sides of filter screen all are fixed with with to adhere filter bowl inner peripheral wall's side plate, the top of side plate all with support seat's outer peripheral wall linkup fixed, the bottom of side plate all with base's outer peripheral wall linkup fixed. This filter screen structure for ship main engine cooling seawater filtration's filtering effect is better, and the structure is more stable.

Description

Technical Field

[0001] This utility model relates to a filter structure for filtering seawater used in ship engine cooling, and relates to the field of ship engine cooling water filtration technology. Background Technology

[0002] In the main propulsion system of ships, the primary cooling medium for the diesel engine's cooling system is seawater. However, the waterways contain a large amount of debris. If this water is used to cool the main engine without filtration, various types of debris will contaminate the heat exchangers. The more debris present, the worse the heat exchange efficiency, preventing the diesel engine from reaching its rated speed. This, in turn, affects the ship's normal operation and maintenance. Therefore, existing technologies often involve vertically installing filters in the cooling system of the diesel engine, such as... Figure 1 The filter structure shown is used to filter water and isolate most of the water debris, but it still has the following shortcomings:

[0003] The existing filter structure only has sheet metal edging around the filter screen. On the one hand, the gaps between the left and right sides, the top and the filter cylinder are relatively large, making it easy for water debris to enter the heat exchanger of the main unit through these gaps. On the other hand, the filter screen with only sheet metal edging around the edges has poor rigidity, and seawater impact may cause the filter screen to shift, thus affecting the seawater flow.

[0004] To address the aforementioned technical issues, this paper proposes a filter structure for filtering seawater used in ship main engine cooling. Utility Model Content

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a filter structure for filtering seawater used for cooling marine main engines.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a filter screen structure for filtering seawater for cooling marine main engines, including a filter screen for installation inside a filter cylinder, a cylindrical base with an axial verticality fixed at the bottom end of the filter screen, a cylindrical support seat coaxial with the base fixed at the top end of the filter screen, and side plates for fitting against the inner peripheral wall of the filter cylinder fixed on both the left and right sides of the filter screen, the top ends of the side plates being connected and fixed to the outer peripheral wall of the support seat, and the bottom ends of the side plates being connected and fixed to the outer peripheral wall of the base.

[0007] Preferably, the horizontal cross-section of the filter screen is arc-shaped, with the concave side of the arc facing the water inlet of the filter cartridge and the convex side of the arc facing the water outlet of the filter cartridge.

[0008] Preferably, the support base is a cylindrical ring.

[0009] Preferably, the top edge of the filter screen is fixed with an upper edge binding strip, and both the left and right ends of the upper edge binding strip are fixed to the inner peripheral wall of the support seat of the annular body.

[0010] Preferably, the side plates are all disposed on the left and right sides of the filter screen facing the water inlet of the filter cartridge.

[0011] Preferably, the horizontal cross-section of the side plates is circular arc-shaped.

[0012] Preferably, the outer diameter of the side plate is the same as the outer diameter of the base and the support, and the inner diameter of the filter cartridge is the same as the outer diameter of the side plate.

[0013] Preferably, each side plate has a connecting bend fixed on the side facing the outlet of the filter cartridge, and the connecting bend is fixed on the corresponding side edge of the filter screen to form a side edge binding strip on the left and right sides of the filter screen.

[0014] Preferably, the top end face of the support base is fitted with the inner bottom surface of the top cover of the filter cartridge via a sealing gasket.

[0015] Preferably, the filter screen, base, support, and side plate are all made of stainless steel.

[0016] Compared with existing technologies, this utility model has the following advantages: The filter structure for filtering seawater used in marine main engine cooling systems features side plates that fit snugly against the inner circumferential wall of the filter cartridge, effectively isolating most debris that attempts to enter the main engine from the side of the filter. It also includes a support base that blocks most debris that tries to enter the main engine from the top of the filter, thus improving the sealing performance between the sides, top, and filter cartridge of the filter structure. Furthermore, the side plates and support base make the filter structure more three-dimensional, rigid, and stable, reducing the likelihood of the filter screen being washed away and displaced by seawater.

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the existing technology.

[0019] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model.

[0020] Figure 3 This is a top view of the usage state of an embodiment of the present invention (with the cylinder cover removed).

[0021] Figure 4 for Figure 3 A magnified view of part A.

[0022] Figure 5 for Figure 3 BB sectional view (with the cylinder cover installed).

[0023] In the diagram: Filter cartridge 1, filter screen 2, base 3, support seat 4, side plate 5, water inlet 6, water outlet 7, upper edge binding strip 8, connecting bend 9, sealing gasket 10, cartridge cover 11, positioning protrusion 12, positioning recess 13. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] like Figures 1-5 As shown, this embodiment provides a filter structure for filtering seawater used in cooling marine main engines, including a filter screen 2 for installation inside a filter cartridge 1. The bottom end of the filter screen is fixed with an axially vertical cylindrical base 3, and the top end of the filter screen is fixed with a cylindrical support 4 coaxial with the base. Side plates 5 for fitting against the inner peripheral wall of the filter cartridge are fixed on both the left and right sides of the filter screen. The top ends of the side plates are connected and fixed to the outer peripheral wall of the support 4, and the bottom ends of the side plates are connected and fixed to the outer peripheral wall of the base.

[0028] In this embodiment of the present invention, the horizontal cross-section of the filter screen is arc-shaped, with the concave side of the arc facing the water inlet 6 of the filter cartridge and the convex side of the arc facing the water outlet 7 of the filter cartridge.

[0029] In this embodiment of the utility model, the inlet and outlet of the filter cartridge are located on the middle circumference of the filter cartridge in the vertical direction, and the inlet and outlet are arranged opposite to each other.

[0030] In this embodiment of the invention, the support base is a cylindrical ring.

[0031] In this embodiment of the utility model, the top edge of the filter screen is fixedly provided with an upper edge binding strip 8, and both the left and right ends of the upper edge binding strip are fixed to the inner peripheral wall of the support seat of the annular body.

[0032] In this embodiment of the utility model, the side plates are all arranged on the left and right sides of the filter screen facing the water inlet of the filter cartridge.

[0033] In this embodiment of the invention, the horizontal cross-section of the side plate is always arc-shaped.

[0034] In this embodiment of the utility model, the outer diameter of the side plate is consistent with the outer diameter of the base and the support, and the inner diameter of the filter cartridge is consistent with the outer diameter of the side plate.

[0035] In this embodiment of the utility model, each side plate has a connecting bend 9 fixed on the side facing the outlet of the filter cylinder. The connecting bend is fixed on the corresponding side edge of the filter screen to form a side edge binding strip on the left and right sides of the filter screen.

[0036] In this embodiment of the utility model, the top end face of the support base is fitted with the inner bottom surface of the top cover 11 of the filter cartridge via a sealing gasket 10, and the cover is screwed and locked onto the filter cartridge.

[0037] In this embodiment of the utility model, the filter screen, base, support seat, and side plate are all made of stainless steel.

[0038] In this embodiment of the invention, a positioning protrusion 12 is fixedly provided on the outer bottom surface of the base, and a positioning recess 13 is provided on the bottom of the inner cylinder of the filter cartridge for the positioning protrusion to be embedded from top to bottom. The positioning protrusion of the base of the filter structure installed inside the filter cartridge is embedded in the positioning recess, so that the positioning of the filter structure inside the entire filter cartridge can be more stable and less prone to displacement.

[0039] In this embodiment of the invention, the working principle of the filter structure for filtering seawater used to cool marine main engines is as follows:

[0040] 1. Open the top cover of the filter cartridge;

[0041] 2. Place the filter structure vertically inside the filter cylinder, so that the positioning protrusion of the base is embedded in the positioning recess;

[0042] 3. Place a sealing gasket on the top end face of the support base, cover the cylinder cover, and screw the cylinder cover tightly onto the filter cylinder;

[0043] 4. Seawater enters through the inlet of the filter cartridge and, after being filtered by the filter structure, is discharged through the outlet to the cooling system of the ship's main engine. The side plates of the filter structure fit snugly against the inner wall of the filter cartridge, isolating most of the debris that tries to enter the main engine from the side of the filter; the support base of the filter structure blocks most of the debris that tries to enter the main engine from the top of the filter, thus improving the sealing performance between the sides and top of the filter structure and the filter cartridge. At the same time, the design of the side plates and support base makes the filter structure more three-dimensional, more rigid, and more stable, making the filter screen less susceptible to displacement due to seawater erosion.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A filter screen structure for filtering seawater used in marine main engine cooling, characterized in that: The filter includes a filter screen for installation inside a filter cartridge. The bottom end of the filter screen is fixed with an axially vertical cylindrical base, and the top end of the filter screen is fixed with a cylindrical support seat coaxial with the base. Side plates for fitting against the inner peripheral wall of the filter cartridge are fixed on both the left and right sides of the filter screen. The top ends of the side plates are connected and fixed to the outer peripheral wall of the support seat, and the bottom ends of the side plates are connected and fixed to the outer peripheral wall of the base.

2. The filter screen structure for filtering seawater used for cooling marine main engines according to claim 1, characterized in that: The horizontal cross-section of the filter screen is arc-shaped, with the concave side of the arc facing the water inlet of the filter cartridge and the convex side of the arc facing the water outlet of the filter cartridge.

3. The filter screen structure for filtering seawater used for cooling marine main engines according to claim 1, characterized in that: The support base is a cylindrical ring.

4. The filter screen structure for filtering seawater used for cooling marine main engines according to claim 3, characterized in that: The top edge of the filter screen is fixed with an upper edge binding strip, and both the left and right ends of the upper edge binding strip are fixed to the inner peripheral wall of the support seat of the annular body.

5. The filter screen structure for filtering seawater used for cooling marine main engines according to claim 2, characterized in that: The side plates are all located on the left and right sides of the filter screen facing the water inlet of the filter cartridge.

6. The filter screen structure for filtering seawater used for cooling marine main engines according to claim 1, characterized in that: The horizontal cross-sections of the side plates are all arc-shaped.

7. The filter screen structure for filtering seawater used for cooling marine main engines according to claim 6, characterized in that: The outer diameter of the side plate is the same as the outer diameter of the base and the support, and the inner diameter of the filter cartridge is the same as the outer diameter of the side plate.

8. The filter screen structure for filtering seawater used for cooling marine main engines according to claim 5, characterized in that: Each side plate has a connecting bend fixed on the side facing the outlet of the filter cartridge. The connecting bend is fixed on the corresponding side edge of the filter screen to form a side edge binding strip on the left and right sides of the filter screen.

9. The filter screen structure for filtering seawater used for cooling marine main engines according to claim 1, characterized in that: The top end face of the support base is fitted with the inner bottom surface of the top cover of the filter cartridge via a sealing gasket.

10. The filter screen structure for filtering seawater used for cooling marine main engines according to claim 1, characterized in that: The filter screen, base, support, and side plates are all made of stainless steel.

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