Open type double-circulation anti-corrosion cooling system

Abstract

The invention relates to the technical field of outboard engine internal combustion engine cooling, and particularly discloses an open type double-circulation anti-corrosion cooling system which comprises a machine body base, a cover plate is arranged at the bottom of the machine body base, an oil pan is arranged at the bottom of the cover plate, an overwater shell is arranged at the bottom of the oil pan, and an underwater shell is arranged at the bottom of the overwater shell. A water inlet and a water outlet are formed in the underwater shell, a water inlet filter screen is arranged in the water inlet, an anti-blocking mechanism is arranged on the water inlet, a water pump is arranged at the lower end of one side of the oil pan, and the input end of the water pump is connected with the water inlet through a water inlet channel. By arranging a series of structures, the system has two modes of a small circulation cooling system and a large circulation cooling system, large circulation and small circulation are automatically switched in, a cooling medium is seawater, the system is light in weight, good in cooling effect and good in corrosion resistance, a water inlet filter screen is arranged in a water inlet for filtering, a seawater circulation channel of the cooling system is prevented from being blocked, and the service life of the system is prolonged. And the water inlet filter screen is double-sided cleaned and anti-clogging.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of outboard engine cooling technology, in particular to an open type double circulation corrosion prevention cooling system. BACKGROUND

[0002] The outboard engine is a propulsion device installed on the outside of the ship body, which drives the propeller to propel the ship by burning fuel in the cylinder to generate power. The core is the internal combustion engine, and the heat energy generated by fuel combustion is directly converted into mechanical energy. The outboard engine cooling system is the core component of the ship's hanging slurry machine, which mainly realizes heat dissipation through water cooling or air cooling to ensure that the engine operates at an appropriate temperature.

[0003] At present, the water cooling of the outboard engine needs to set up a water tank to supply cooling liquid, and the water tank increases the weight of the outboard engine equipment. The outboard engine cooling adopts a single water circulation cooling mode, the cooling effect is poor, and the cooling medium flow pipeline is blocked, which hinders the cooling of the outboard engine, and the cooling life is short. SUMMARY

[0004] The purpose of the present application is to provide an open type double circulation corrosion prevention cooling system to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: an open type double circulation corrosion prevention cooling system, comprising a machine body base, a cover plate is arranged at the bottom of the machine body base, an oil sump is arranged at the bottom of the cover plate, a water-on shell is arranged at the bottom of the oil sump, a water-under shell is arranged at the bottom of the water-on shell, a water inlet and a water outlet are arranged on the water-under shell, a water inlet filter screen is arranged in the water inlet, a anti-blocking mechanism is arranged on the water inlet, a water pump is arranged at the lower end of one side of the oil sump, the input end of the water pump is connected with the water inlet through a water inlet channel, the output end of the water pump is connected with a water inlet pipe, the water pump is connected with a driving shaft, the driving shaft is arranged on the machine body base, a tank body is arranged at the top of the machine body base, a tank cover is arranged on one side of the tank body, a tank body water jacket is arranged on the tank body, a tank cooling cavity is arranged between the tank cover and the tank body, an oil chamber is arranged at the top of one side of the tank body, an oil chamber condenser is arranged at the top of the oil chamber, a thermostat is arranged on one side of the oil chamber condenser, a backwater pipe is arranged at the bottom of the thermostat, a cylinder head is arranged on the side of the tank body away from the tank cover, a cylinder head cover is arranged on the side of the cylinder head away from the tank body, a cylinder head water jacket is arranged on the cylinder head, an exhaust pipe is arranged on one side of the cylinder head, an exhaust pipe water jacket is arranged on the exhaust pipe, and a propeller is arranged at the bottom of the water-under shell.

[0006] Preferably, the water inlet, water pump, water inlet pipe, oil chamber condenser and box cooling cavity are communicated, the box water jacket, cylinder head water jacket and exhaust pipe water jacket are communicated, and cooling water flows through the water inlet, water pump, water inlet pipe, oil chamber condenser, box cooling cavity, box water jacket, cylinder head water jacket and exhaust pipe water jacket to form a small circulation cooling system; the cooling water flows through the thermostat into the backwater pipe to form a large circulation cooling system.

[0007] Preferably, the initial opening temperature of the thermostat is 60 DEG C, and the full opening temperature of the thermostat is 72 DEG C.

[0008] Preferably, the surfaces of the body base, cover plate, oil pan, water upper shell, water lower shell, water pump, drive shaft, water inlet pipe, box, box cover, box water jacket, box cooling cavity, oil chamber condenser, backwater pipe, cylinder head, cylinder head water jacket, exhaust pipe, exhaust pipe water jacket and propeller which contact seawater are provided with anticorrosion coating.

[0009] Preferably, the anti-blocking mechanism comprises a linear guide rail, a first connecting plate, a cleaning plate, a brush and a through hole, the water lower shell on the side of the water inlet is provided with the linear guide rail, the linear guide rail adopts a waterproof linear module, the upper end of the linear guide rail is arranged on the water upper shell, the side of the linear guide rail is provided with the first connecting plate, the outer side of the water inlet filter screen is provided with the cleaning plate, one end of the cleaning plate is connected with the first connecting plate, the side of the cleaning plate close to the water inlet filter screen is provided with the brush, the cleaning plate is provided with the through hole, and the water lower shell on the side of the water inlet is provided with a flushing mechanism.

[0010] Preferably, the flushing mechanism comprises a second connecting plate, a flushing pipe, a flushing nozzle and a flushing pump, the side of the linear guide rail away from the first connecting plate is provided with the second connecting plate, the water lower shell on the side of the water inlet is internally provided with the flushing pipe, one end of the flushing pipe is connected with the second connecting plate, the side of the flushing pipe close to the water inlet filter screen is provided with the flushing nozzle, the flushing pipe is connected with the output end of the flushing pump through a connecting pipe, the flushing pump is arranged on the water upper shell through a support, and the input end of the flushing pump is connected with the through hole of the water lower shell on the side of the water inlet through a water pipe.

[0011] Preferably, two water inlets are arranged on the opposite sides of the water lower shell, and two water outlets are arranged on the opposite sides of the water lower shell above the water inlets.

[0012] Preferably, the water inlet filter screen is fixed on the water lower shell through bolts, and the surface of the water inlet filter screen is provided with anticorrosion coating.

[0013] Compared with the prior art, the present application has the following beneficial effects: The open double circulation anticorrosion cooling system has two modes of small circulation cooling system and large circulation cooling system, and the small and large circulation is automatically switched in, the cooling medium is seawater, the weight is light, the cooling effect is good, and the anticorrosion property is good.

[0014] The open double circulation anticorrosion cooling system is provided with a water inlet filter screen in the water inlet, the seawater entering the cooling system is filtered, the seawater flow passage of the cooling system is prevented from being blocked, the cleaning plate and the brush are matched, the flushing pipe, the flushing nozzle and the flushing pump are matched, the double-sided cleaning of the brushing and flushing combination of the water inlet filter screen is realized, and the water inlet filter screen inside the water inlet is prevented from being blocked. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the present application; Figure 2 It is a structure schematic view of the box body in the present application Figure 3 It is a structure schematic view of the box cover in the present application; Figure 4 It is a structure schematic view of the present application Figure 1 enlarged structure schematic view of A in the present application; Figure 5 It is a structure schematic view of the present application Figure 1 enlarged structure schematic view of B in the present application; Figure 6 It is a structure schematic view of the present application Figure 1 enlarged structure schematic view of C in the present application; Figure 7 It is a structure schematic view of the present application Figure 1 enlarged structure schematic view of D in the present application; Figure 8 It is a structure schematic view of the water inlet filter screen in the present application.

[0016] In the drawing: 1, machine body base; 2, cover plate; 3, oil pan; 4, water upper shell; 5, water lower shell; 6, water inlet; 61, water inlet filter screen; 62, linear guide rail; 63, No. 1 connecting plate; 64, cleaning plate; 65, brush; 66, through hole; 67, No. 2 connecting plate; 68, flushing pipe; 69, flushing nozzle; 610, flushing pump; 7, water outlet; 8, water pump; 9, driving shaft; 10, water inlet pipe; 11, box body; 12, box cover; 13, box body water jacket; 14, box body cooling cavity; 15, oil chamber; 16, oil chamber condenser; 17, thermostat; 18, backwater pipe; 19, cylinder head; 20, cylinder head cover; 21, cylinder head water jacket; 22, exhaust pipe; 23, exhaust pipe water jacket; 24, propeller. DETAILED DESCRIPTION

[0017] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below, obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present application.

[0018] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0019] As shown in Figures 1 to 8 The open double-circulation corrosion-prevention cooling system of the present embodiment comprises a machine base 1, the bottom of the machine base 1 is provided with a cover plate 2, the bottom of the cover plate 2 is provided with an oil sump 3, the bottom of the oil sump 3 is provided with a water-on housing 4, the bottom of the water-on housing 4 is provided with a water-under housing 5, the water-under housing 5 is provided with a water inlet 6 and a water outlet 7, the inside of the water inlet 6 is provided with a water inlet filter screen 61, the water inlet 6 is provided with an anti-blocking mechanism, the lower end of one side of the oil sump 3 is provided with a water pump 8, the input end of the water pump 8 is connected with the water inlet 6 through a water inlet channel, the output end of the water pump 8 is connected with a water inlet pipe 10, the water pump 8 is connected with a drive shaft 9, the drive shaft 9 is arranged on the machine base 1, the top of the machine base 1 is provided with a box body 11, one side of the box body 11 is provided with a box cover 12, the box body 11 is provided with a box body water jacket 13, the box cover 12 and the box body 11 are provided with a box body cooling cavity 14, the top of one side of the box body 11 is provided with an oil chamber 15, the top of the oil chamber 15 is provided with an oil chamber condenser 16, one side of the oil chamber condenser 16 is provided with a thermostat 17, the bottom of the thermostat 17 is provided with a backwater pipe 18, the side of the box body 11 away from the box cover 12 is provided with a cylinder head 19, the side of the cylinder head 19 away from the box body 11 is provided with a cylinder head cover 20, the cylinder head 19 is provided with a cylinder head water jacket 21, one side of the cylinder head 19 is provided with an exhaust pipe 22, the exhaust pipe 22 is provided with an exhaust pipe water jacket 23, the bottom of the water-under housing 5 is provided with a propeller 24, the system has two modes of small-circulation cooling system and large-circulation cooling system, the small and large circulation is automatically switched in, the cooling medium is seawater, the system is light in weight, good in cooling effect and corrosion-prevention, avoids the blockage of the seawater flow channel of the cooling system, realizes the double-sided cleaning of the combination of brushing and flushing of the water inlet filter screen 61, and prevents the blockage of the water inlet filter screen 61 inside the water inlet 6.

[0020] Specifically, the water inlet 6, the water pump 8, the water inlet pipe 10, the oil chamber condenser 16 and the box cooling cavity 14 are communicated, the box water jacket 13, the cylinder head water jacket 21 and the exhaust pipe water jacket 23 are communicated, and the cooling water flows through the water inlet 6, the water pump 8, the water inlet pipe 10, the oil chamber condenser 16, the box cooling cavity 14, the box water jacket 13, the cylinder head water jacket 21 and the exhaust pipe water jacket 23 to form a small circulation cooling system; the cooling water flows through the thermostat 17 into the backwater pipe 18 to form a large circulation cooling system, when the internal combustion engine starts, the seawater enters the water pump impeller, the water pump impeller pumps out the water, the water enters the oil chamber condenser 16, the box cooling cavity 14 and the backwater pipe 18 through the water inlet pipe 10, and the cooling water enters the box water jacket 13, the cylinder head 19 water jacket and the exhaust pipe water jacket 23 to be cooled, at this time, it is a small circulation cooling system mode, when the cooling water temperature reaches 60 DEG C, the thermostat 17 starts to open, and the cooling water is circulated out through the backwater pipe 18, at this time, it is a large circulation cooling system mode.

[0021] Further, the initial opening temperature of the thermostat 17 is 60 DEG C, the full opening temperature of the thermostat 17 is 72 DEG C, and when the cooling water temperature reaches 60 DEG C, the thermostat 17 starts to open.

[0022] Further, the surfaces of the engine body base 1, the cover plate 2, the oil pan 3, the water above shell 4, the water below shell 5, the water pump 8, the drive shaft 9, the water inlet pipe 10, the box 11, the box cover 12, the box water jacket 13, the box cooling cavity 14, the oil chamber condenser 16, the backwater pipe 18, the cylinder head 19, the cylinder head water jacket 21, the exhaust pipe 22, the exhaust pipe water jacket 23 and the propeller 24 in contact with seawater are provided with an anti-corrosion coating, and all seawater pipelines are provided with anti-corrosion measures to prevent corrosion of seawater to the parts.

[0023] Further, the anti-blocking mechanism comprises a linear guide rail 62, a first connecting plate 63, a cleaning plate 64, a brush 65 and a through hole 66, the water below shell 5 on one side of the water inlet 6 is provided with the linear guide rail 62, the linear guide rail 62 adopts a waterproof linear module, the upper end of the linear guide rail 62 is arranged on the water above shell 4, one side of the linear guide rail 62 is provided with the first connecting plate 63, the outer side of the water inlet filter screen 61 is provided with the cleaning plate 64, one end of the cleaning plate 64 is connected with the first connecting plate 63, the side of the cleaning plate 64 close to the water inlet filter screen 61 is provided with the brush 65, the cleaning plate 64 is provided with the through hole 66, and the water below shell 5 on one side of the water inlet 6 is provided with a flushing mechanism, the linear guide rail 62 drives the cleaning plate 64 to move up and down outside the water inlet filter screen 61 through the first connecting plate 63, and the brush 65 and the cleaning plate 64 clean the water inlet filtering surface outside the water inlet filter screen 61.

[0024] Further, the flushing mechanism comprises the second connecting plate 67, the flushing pipe 68, the flushing nozzle 69 and the flushing pump 610. The linear guide rail 62 is provided with the second connecting plate 67 away from the side of the first connecting plate 63. The underwater shell 5 on one side of the water inlet 6 is internally provided with the flushing pipe 68. One end of the flushing pipe 68 is connected with the second connecting plate 67. The flushing pipe 68 is provided with the flushing nozzle 69 on the side close to the water inlet filter screen 61. The flushing pipe 68 is connected with the output end of the flushing pump 610 through the connecting pipe. The connecting pipe is a telescopic pipe. The flushing pump 610 is arranged on the water surface shell 4 through the support. The input end of the flushing pump 610 is connected with the through port of the underwater shell 5 on one side of the water inlet 6 through the water pipe. The linear guide rail 62 drives the flushing pipe 68 to move up and down in the interior of the water inlet filter screen 61 through the second connecting plate 67. The flushing pump 610 draws seawater and delivers it to the flushing pipe 68. The flushing nozzle 69 on the flushing pipe 68 sprays water to flush the water inlet filter screen 61.

[0025] Further, the water inlet 6 and the water outlet 7 are both provided with two. The two water inlets 6 are arranged on the opposite sides of the underwater shell 5. The two water outlets 7 are arranged on the opposite sides of the underwater shell 5 above the water inlets 6. The water outlets 7 are staggered with the water inlets 6 to reduce the interference between the water inlets 6 and the water outlets 7. The interior of the water outlet 7 is provided with the protective grating.

[0026] Further, the water inlet filter screen 61 is fixed on the underwater shell 5 through the bolts. The surface of the water inlet filter screen 61 is provided with the anti-corrosion coating. The water inlet filter screen 61 can be disassembled and replaced on the underwater shell 5. The water inlet filter screen 61 has good seawater corrosion resistance.

[0027] The use method of the embodiment is: the cooling system is open, the cooling medium is seawater, when the internal combustion engine starts, the seawater enters the impeller of the water pump 8, the impeller of the water pump 8 pumps out the water, the water enters the oil chamber condenser 16, the box cooling cavity 14 through the water inlet pipe 10 to the backwater pipe 18, and at the same time, the cooling water enters the box water jacket 13, the cylinder cover 19 water jacket and the exhaust pipe water jacket 23 to cool, at this time, it is a small circulation cooling system mode, when the cooling water temperature reaches 60 DEG C, the thermostat 17 starts to open, and the water is circulated out through the backwater pipe 18, at this time, the large circulation cooling system mode is entered, at the same time, all the seawater pipelines are provided with corrosion prevention measures to prevent the corrosion of seawater to the parts, the system has two modes of the small circulation cooling system and the large circulation cooling system, the small and large circulation is automatically cut in, the cooling medium is seawater, the weight is light, the cooling effect is good, and the corrosion resistance is good; when the water inlet filter screen 61 is cleaned, the linear guide rail 62 is started, the linear guide rail 62 drives the cleaning plate 64 to move up and down outside the water inlet filter screen 61 through the first connecting plate 63, the brush 65 and the cleaning plate 64 clean the water inlet filtering surface outside the water inlet filter screen 61, at the same time, the linear guide rail 62 drives the flushing pipe 68 to move up and down inside the water inlet filter screen 61 through the second connecting plate 67, the flushing pump 610 draws seawater and delivers the seawater to the flushing pipe 68, and the flushing pipe 68 sprays water to the water inlet filter screen 61 through the flushing nozzle 69 on the flushing pipe 68, so that the water inlet filter screen 61 is cleaned by brushing and flushing, and the water inlet filter screen 61 inside the water inlet 6 is prevented from being blocked.

[0028] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An open double cycle corrosion protection cooling system comprising a body base (1) characterized in that: The bottom of the machine base (1) is provided with a cover plate (2), the bottom of the cover plate (2) is provided with an oil pan (3), the bottom of the oil pan (3) is provided with a water shell (4), the bottom of the water shell (4) is provided with an underwater shell (5), the underwater shell (5) is provided with a water inlet (6) and a water outlet (7), the inside of the water inlet (6) is provided with a water inlet filter screen (61), the water inlet (6) is provided with an anti-blocking mechanism, the lower end of one side of the oil pan (3) is provided with a water pump (8), the input end of the water pump (8) is connected with the water inlet (6) through a water inlet channel, the output end of the water pump (8) is connected with a water inlet pipe (10), the water pump (8) is connected with a drive shaft (9), the drive shaft (9) is arranged on the machine base (1), the top of the machine base (1) is provided with a box body (11), one side of the box body (11) is provided with a box cover (12), the box body (11) is provided with a box body water jacket (13), the box cover (12) and the box body (11) are provided with a box body cooling cavity (14), the top of one side of the box body (11) is provided with an oil chamber (15), the top of the oil chamber (15) is provided with an oil chamber condenser (16), one side of the oil chamber condenser (16) is provided with a thermostat (17), the bottom of the thermostat (17) is provided with a backwater pipe (18), the side, away from the box cover (12), of the box body (11) is provided with a cylinder cover (19), the side, away from the box body (11), of the cylinder cover (19) is provided with a cylinder cover cover (20), the cylinder cover (19) is provided with a cylinder cover water jacket (21), one side of the cylinder cover (19) is provided with an exhaust pipe (22), the exhaust pipe (22) is provided with an exhaust pipe water jacket (23), the bottom of the underwater shell (5) is provided with a propeller (24).

2. The open, dual-circuit, corrosion-protective cooling system according to claim 1, characterized in that The water inlet (6), the water pump (8), the water inlet pipe (10), the oil chamber condenser (16) and the box body cooling cavity (14) are communicated, the box body water jacket (13), the cylinder cover water jacket (21) and the exhaust pipe water jacket (23) are communicated, and the cooling water flows through the water inlet (6), the water pump (8), the water inlet pipe (10), the oil chamber condenser (16), the box body cooling cavity (14), the box body water jacket (13), the cylinder cover water jacket (21) and the exhaust pipe water jacket (23) to form a small circulation cooling system; the cooling water flows through the thermostat (17) into the backwater pipe (18) to form a large circulation cooling system.

3. The open Brayton cycle corrosion resistant cooling system of claim 1, wherein: The initial opening temperature of the thermostat (17) is 60℃, and the full opening temperature of the thermostat (17) is 72℃.

4. The open Brayton cycle corrosion resistant cooling system of claim 2, wherein: The surfaces of the machine base (1), the cover plate (2), the oil pan (3), the water shell (4), the underwater shell (5), the water pump (8), the drive shaft (9), the water inlet pipe (10), the box body (11), the box cover (12), the box body water jacket (13), the box body cooling cavity (14), the oil chamber condenser (16), the backwater pipe (18), the cylinder cover (19), the cylinder cover water jacket (21), the exhaust pipe (22), the exhaust pipe water jacket (23) and the propeller (24) that contact with seawater are all provided with an anti-corrosion coating.

5. The open Brayton cycle corrosion resistant cooling system of claim 1, wherein: The anti-blocking mechanism comprises a linear guide rail (62), a first connecting plate (63), a cleaning plate (64), a brush (65) and a through hole (66), the underwater shell (5) on the side of the water inlet (6) is provided with the linear guide rail (62), the linear guide rail (62) adopts a waterproof linear module, the upper end of the linear guide rail (62) is arranged on the water shell (4), one side of the linear guide rail (62) is provided with the first connecting plate (63), the outer side of the water inlet filter screen (61) is provided with the cleaning plate (64), one end of the cleaning plate (64) is connected with the first connecting plate (63), the side of the cleaning plate (64) close to the water inlet filter screen (61) is provided with the brush (65), the cleaning plate (64) is provided with the through hole (66), and the underwater shell (5) on the side of the water inlet (6) is provided with a flushing mechanism.

6. The open Brayton cycle corrosion resistant cooling system of claim 5, wherein: The flushing mechanism comprises a second connecting plate (67), a flushing pipe (68), a flushing nozzle (69) and a flushing pump (610), one side of the linear guide rail (62) away from the first connecting plate (63) is provided with the second connecting plate (67), the underwater shell (5) on the side of the water inlet (6) is internally provided with the flushing pipe (68), one end of the flushing pipe (68) is connected with the second connecting plate (67), the side of the flushing pipe (68) close to the water inlet filter screen (61) is provided with the flushing nozzle (69), the flushing pipe (68) is connected with the output end of the flushing pump (610) through a connecting pipe, the flushing pump (610) is arranged on the water shell (4) through a support, and the input end of the flushing pump (610) is connected with the through hole of the underwater shell (5) on the side of the water inlet (6) through a water pipe.

7. The open Brayton cycle corrosion resistant cooling system of claim 1, wherein: The water inlet (6) and the water outlet (7) are both provided with two, the two water inlets (6) are arranged on the opposite sides of the underwater shell (5), and the two water outlets (7) are arranged on the opposite sides of the underwater shell (5) above the water inlets (6).

8. The open Brayton cycle corrosion resistant cooling system of claim 1, wherein: The water inlet filter screen (61) is fixed on the underwater shell (5) through bolts, and the surface of the water inlet filter screen (61) is provided with an anti-corrosion coating.

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