Ventilation device for marine engine respirator
By using electronic three-way valves and drain pipes to collect condensate in marine engine respirator ventilation devices, the condensate reflow problem is solved, the engine service life is extended, and the water waste is reduced through the secondary utilization of the collection box.
Patent Information
- Application Number
- CN202421235665.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-31
Smart Images
Figure CN222363039U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ship engines, and more specifically, to a breathing device for a ship engine. Background Art
[0002] The engine breather is a very important component in the engine system. It can control the air pressure inside the engine to prevent the internal pressure of the engine from being too high. At the same time, it mainly connects the engine intake system and the exhaust system to guide the exhaust gas inside the engine out, so that the pressure formed inside the engine can be released and the engine can maintain normal working condition.
[0003] The ship engine respirator vent pipe is led to the ship deck for discharge through the respirator ventilation duct to keep the engine room clean and tidy, but there are also certain problems in this process. When the ship engine is working, the temperature of the respirator ventilation duct is higher than the external ambient temperature, and there is a large temperature difference between the exhaust duct and the external ambient temperature, which forms condensed water in the ventilation duct (especially in areas with high air humidity). When the ship engine is shut down, the respirator is not immediately closed, causing the condensed water in the ventilation duct to flow back from the respirator to the crankcase of the ship engine and mix with the lubricating oil therein. The lubricating oil and water are mixed and emulsified, causing the lubricating oil to fail, thereby affecting the service life of the engine. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a marine engine respirator ventilation device in view of the above-mentioned deficiencies in the prior art, so as to prevent condensed water from entering the interior of the marine engine and mixing with the lubricating oil, thereby effectively improving the service life of the marine engine.
[0005] The technical solution of the utility model is as follows: a marine engine respirator ventilation device, comprising an exhaust pipe, one end of which is connected to a respirator body, and an electronic three-way valve, a first interface of the electronic three-way valve is connected to the other end of the exhaust pipe, a second interface of the electronic three-way valve is provided with a lower ventilation pipe, a third interface of the electronic three-way valve is provided with a drain pipe, the other end of the drain pipe is provided with a condensate collection box, and the electronic three-way valve is electrically connected to a controller.
[0006] As a further improvement, an upper ventilation duct is provided at the other end of the lower ventilation duct, and the upper ventilation duct passes through the ship deck. A flexible connection device is provided at the connection between the lower ventilation duct and the upper ventilation duct to avoid resonance between the lower ventilation duct and the ship deck.
[0007] Furthermore, the flexible connection device includes a bellows, which is located below the ship deck, one end of the bellows is connected to the lower ventilation duct flange, the flange at the other end of the bellows is bolted to the ship deck, and the other end of the bellows is connected to the upper ventilation duct flange.
[0008] Furthermore, one end of the upper ventilation pipe is bent, and the bending angle of the upper ventilation pipe is 90°.
[0009] Furthermore, the lower ventilation pipe and the drainage pipe are arranged vertically, and the central axis of the lower ventilation pipe coincides with the central axis of the drainage pipe.
[0010] Furthermore, the height of the baffle gradually increases along the airflow direction in the exhaust pipe.
[0011] Furthermore, the exhaust pipe is covered with thermal insulation cotton.
[0012] Furthermore, a U-shaped tube is provided at the water inlet of the condensate collection box, and the U-shaped tube is installed in the condensate collection box, one end of the U-shaped tube is connected to the drain pipe, and the other end of the U-shaped tube is connected to the cavity of the condensate collection box.
[0013] Beneficial Effects
[0014] Compared with the prior art, the utility model has the following advantages:
[0015] 1. The utility model is a marine engine respirator ventilation device. By installing an electronic three-way valve between the exhaust pipe and the lower ventilation pipe, when the ship engine is stopped, the connection between the exhaust pipe and the lower ventilation pipe is closed, so that the condensed water in the lower ventilation pipe enters the condensed water collection box along the drain pipe, thereby preventing the condensed water from entering the interior of the ship engine and mixing with the lubricating oil, thereby effectively improving the service life of the engine.
[0016] 2. In the marine engine respirator ventilation device of the utility model, the condensed water generated in the lower ventilation pipe can enter the condensed water collection box along the drain pipe. When the condensed water in the condensed water collection box is stored to a certain amount, the condensed water in the condensed water collection box can be reused to avoid the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the bellows and the ship deck in the utility model;
[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the exhaust pipe in the utility model;
[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the condensate collection box in the utility model.
[0021] Among them: 1-ship engine, 2-respirator body, 3-exhaust pipe, 4-baffle, 5-controller, 6-lower ventilation pipe, 7-electronic three-way valve, 8-drain pipe, 9-condensate mobile phone box, 10-ship deck, 11-corrugated pipe, 12-insulation cotton, 13-U-shaped pipe, 14-upper ventilation pipe. DETAILED DESCRIPTION
[0022] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.
[0023] See also Figure 1-4 A marine engine respirator ventilation device comprises an exhaust pipe 3, one end of which is connected to a respirator body 2, and an electronic three-way valve 7, a first interface of the electronic three-way valve 7 is connected to the other end of the exhaust pipe 3, a second interface of the electronic three-way valve 7 is provided with a lower ventilation pipe 6, a third interface of the electronic three-way valve 7 is provided with a drain pipe 8, and the other end of the drain pipe 8 is provided with a condensate collection box 9, condensate formed in the lower ventilation pipe 6 enters the condensate mobile box 9 along the drain pipe 8, and the collected condensate can be reused to avoid waste of water resources; the electronic three-way valve 7 is electrically connected to a controller 5, and the electronic three-way valve 7 is electrically connected to a ship engine 1 through the controller 5; when the ship engine 1 is shut down, the controller 5 receives a signal, controls the electronic three-way valve 7 to close the exhaust pipe 3, and connects the lower ventilation pipe 6 with the drain pipe 8, so that the condensate generated in the lower ventilation pipe 6 flows along the drain pipe 8 to the condensate collection box 9, which can effectively prevent the condensate in the lower ventilation pipe 6 and the exhaust pipe 3 from entering the interior of the ship engine 1 and mixing with the lubricating oil, and effectively improve the service life of the ship engine 1.
[0024] In this embodiment, an upper ventilation pipe 14 is provided at the other end of the lower ventilation pipe 6, and the upper ventilation pipe 14 passes through the ship deck 10. A flexible connection device is provided at the connection between the lower ventilation pipe 6 and the upper ventilation pipe 14 to avoid resonance between the lower ventilation pipe 6 and the ship deck 10. The flexible connection device includes a bellows 11, and the bellows 11 is located below the ship deck 10. One end of the bellows 11 is flange-connected to the lower ventilation pipe 6, and the flange at the other end of the bellows 11 is bolted to the ship deck 10, and the other end of the bellows 11 is flange-connected to the upper ventilation pipe 14, and the bolts pass through the bellows 11, the flange corresponding to the upper ventilation pipe 14, and the flange corresponding to the ship deck 10 in sequence. The bellows 11 is connected by a corrugated connection, and one end of the bellows 11 is fixedly connected to the ship deck 10. The ship deck 10 can play the role of a bracket and support the upper ventilation duct 14 above the ship deck 10. When the ship deck 10 and the lower ventilation duct 6 are in rigid contact, the ship deck 10 or the lower ventilation duct 6 will affect each other when they vibrate, and even when the ship deck 10 and the lower ventilation duct 6 resonate, the structural strength of the lower ventilation duct 6 will be affected. The flexible connection between the bellows 11 and the ship deck 10 can well avoid the occurrence of such accidents. In other embodiments, a buffer pad can be added between the lower ventilation duct 6 and the ship deck 10.
[0025] In this embodiment, one end of the upper ventilation duct 14 is bent, and the bending angle of the upper ventilation duct 14 is 90°, which can prevent debris from falling into the upper ventilation duct 14 and then entering the lower ventilation duct 6 from the upper ventilation duct 14, thereby causing blockage of the lower ventilation duct 6 or the exhaust pipe 3.
[0026] In this embodiment, the lower ventilation pipe 6 and the drain pipe 8 are arranged vertically, and the central axis of the lower ventilation pipe 6 coincides with the central axis of the drain pipe 8. Under the action of gravity, the condensed water formed in the lower ventilation pipe 6 slides along the inner wall of the lower ventilation pipe 6 and the inner wall of the drain pipe 8 into the condensed water collection box 9.
[0027] In this embodiment, a baffle 4 is provided in the exhaust pipe 3. There are multiple baffles 4, and the multiple baffles 4 are evenly arranged at the bottom of the exhaust pipe 3 cavity along the airflow direction. When the ship engine 1 is shut down, the controller 5 receives an electrical signal and closes the valve between the electronic three-way valve 7 and the exhaust pipe 3, but the gas in the exhaust pipe 3 is not completely discharged, and condensed water is formed in the exhaust pipe 3. The baffle 4 installed at the bottom of the exhaust pipe 3 can prevent the condensed water in the exhaust pipe 3 from flowing into the ship engine 1 when the ship engine 1 is just started, effectively avoiding the mixing of condensed water and the lubricating oil in the ship engine 1; when the heat of the exhaust pipe 3 increases, the condensed water accumulated in the exhaust pipe 3 can be discharged along with the high-temperature exhaust gas.
[0028] In this embodiment, the height of the baffle 4 gradually increases along the airflow direction in the exhaust pipe 3, which can effectively prevent the baffle 4 from obstructing the discharge of exhaust gas.
[0029] In this embodiment, a heat-insulating cotton 12 is provided on the exhaust pipe 3 to add a heat-insulating device to the exhaust pipe 3, thereby reducing the temperature difference between the exhaust pipe 3 and the external environment, thereby reducing the generation of condensed water in the exhaust pipe 3, and further preventing the condensed water from entering the ship engine 1 and mixing with the lubricating oil.
[0030] In this embodiment, a U-shaped tube 13 is provided in the water inlet of the condensate collection box 9. The U-shaped tube 13 is installed in the condensate collection box 9. One end of the U-shaped tube 13 is connected to the drain pipe 8, and the other end of the U-shaped tube 13 is connected to the cavity of the condensate collection box 9. The U-shaped tube 13 is filled with water, which is equivalent to a sealing structure, which can prevent exhaust gas from entering the condensate collection box 9.
[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.
Claims
1. A marine engine respirator ventilation device, comprising an exhaust pipe (3), one end of the exhaust pipe (3) being connected to a respirator body (2), characterized in that: It also includes an electronic three-way valve (7), a first interface of the electronic three-way valve (7) is connected to the other end of the exhaust pipe (3), a second interface of the electronic three-way valve (7) is provided with a lower ventilation pipe (6), a third interface of the electronic three-way valve (7) is provided with a drain pipe (8), and the other end of the drain pipe (8) is provided with a condensate collection box (9), and the electronic three-way valve (7) is electrically connected to the controller (5).
2. A marine engine respirator ventilation device according to claim 1, characterized in that: An upper ventilation pipe (14) is provided at the other end of the lower ventilation pipe (6), and the upper ventilation pipe (14) penetrates the ship deck (10). A flexible connection device is provided at the connection between the lower ventilation pipe (6) and the upper ventilation pipe (14) to avoid resonance between the lower ventilation pipe (6) and the ship deck (10).
3. A marine engine respirator ventilation device according to claim 2, characterized in that: The flexible connection device comprises a bellows (11), wherein the bellows (11) is located below the ship deck (10), one end of the bellows (11) is flange-connected to the lower ventilation pipe (6), the flange at the other end of the bellows (11) is bolted to the ship deck (10), and the other end of the bellows (11) is flange-connected to the upper ventilation pipe (14).
4. A marine engine respirator ventilation device according to claim 3, characterized in that: One end of the upper ventilation pipe (14) is bent, and the bending angle of the upper ventilation pipe (14) is 90°.
5. A marine engine respirator ventilation device according to claim 1, characterized in that: The lower ventilation pipe (6) and the drainage pipe (8) are arranged vertically, and the central axis of the lower ventilation pipe (6) coincides with the central axis of the drainage pipe (8).
6. A marine engine respirator ventilation device according to claim 1, characterized in that: A baffle (4) is provided in the exhaust pipe (3), and there are a plurality of baffles (4). The plurality of baffles (4) are evenly arranged at the bottom of the cavity of the exhaust pipe (3) along the airflow direction.
7. A marine engine respirator ventilation device according to claim 6, characterized in that: The height of the baffle (4) gradually increases along the airflow direction in the exhaust pipe (3).
8. A marine engine respirator ventilation device according to claim 1, characterized in that: The exhaust pipe (3) is covered with heat-insulating cotton (12).
9. A marine engine respirator ventilation device according to claim 1, characterized in that: The water inlet of the condensate collection box (9) is provided with a U-shaped tube (13), and the U-shaped tube (13) is installed in the condensate collection box (9), one end of the U-shaped tube (13) is connected to the drain pipe (8), and the other end of the U-shaped tube (13) is connected to the cavity of the condensate collection box (9).