A gas engine breather

Abstract

The utility model relates to the technical field of internal combustion engine, especially relates to engine crankcase ventilation technology, concretely is a kind of gas engine respirator, including main cavity, gas leakage inlet and valve body, gas outlet, rotary vane separator, coarse filter water absorber, filter layer, exhaust port. Rotary vane separator, it is set in the main cavity, close to the gas leakage inlet position;Coarse filter water absorber, it is set in the upper portion of rotary vane separator;Filter layer, it is set the upper portion of coarse filter water absorber;Exhaust port, it is set in the upper portion of the main cavity, and set explosion-proof valve. Filter part has adopted three-stage filtration, has strengthened the separation of respirator to oil drop, wherein coarse filter water absorber can reduce the moisture in the recovered gasoline oil drop, reduce emulsification. The exhaust port of additional setting is equipped with explosion-proof valve, when abnormal situation appears, the pressure in the exhaler is too high, will gas leakage discharge to the air in high place, improves safety.

Description

Technical Field

[0001] This utility model relates to the field of internal combustion engine technology, and in particular to engine crankcase ventilation technology, specifically a gas engine breather used in gas generator sets. Background Technology

[0002] The engine breather, as the part that connects the crankcase ventilation to the outside, is used to deal with blow-by gas, balance crankcase pressure, filter harmful substances, and recover engine oil.

[0003] The existing widely used engine breather is designed for internal combustion engines. For gas engines, which use gaseous fuels such as natural gas as their energy source, the gaseous fuel molecules are small and highly permeable, making them more prone to leakage into the crankcase, resulting in poor safety. Furthermore, the high moisture content after combustion of gas makes blow-by easy to cause oil emulsification. Therefore, the existing engine breather is less effective when applied to gas engines. Utility Model Content

[0004] The main purpose of this utility model is to provide a gas engine breather that solves the safety problems and the problem of easy oil dilution and emulsification caused by the application of existing engine breathers to gas engines.

[0005] To address the aforementioned problems, this invention makes the following improvements to the existing engine breather application: A rotary pre-separation structure and an enhanced adsorption structure are incorporated to improve separation efficiency and reduce the possibility of oil emulsification. An explosion-proof valve is also included, which is connected to a pipeline leading to the exterior of the building.

[0006] The gas engine breather provided by this utility model includes a main cavity, a blow-by inlet and valve body, an outlet, a rotating blade separator, a coarse filter water absorber, a filter layer, and an exhaust port.

[0007] A rotary vane separator is disposed within the main cavity, near the gas leakage inlet. A coarse filter water absorber is disposed above the rotary blade separator; A filter layer is disposed on the upper part of the coarse filter water absorber; An exhaust port is located at the upper part of the main cavity and is equipped with an explosion-proof valve.

[0008] In a further improvement, the rotary blade separator includes a cage-type support frame installed on the wall of the main cavity, with a rotating shaft at the center of the cage-type support frame, and the blade assembly is mounted on the rotating shaft.

[0009] The rotary blade separator uses centrifugal force to fling oil droplets in the blown gas outwards. The droplets converge at the edges and then separate from the blades, improving separation efficiency. Furthermore, because most oil droplets fall from the edges, they are prevented from returning to the blown gas inlet, further enhancing efficiency.

[0010] In a further improvement, the coarse filter water absorber adopts a honeycomb structure of zeolite material, and the surface of the honeycomb structure is coated with an oleophobic layer.

[0011] In a further improvement, the filter layer adopts a multi-layer metal filter screen, which is integrated into a frame installed on the wall of the main cavity.

[0012] A further improvement is that the metal filter screen has a concave shape at the bottom center.

[0013] A further improvement is that an oil return port is provided between the gas inlet position on the bottom wall of the main cavity and the side wall.

[0014] A further improvement is that an oil-blocking ring is provided between the gas inlet on the bottom wall of the main cavity and the oil return port.

[0015] The technical solution of this invention has the following technical effects: (1) The gas engine breather provided by this utility model strengthens the separation of oil droplets by the breather through the rotating blade separator, the coarse filter water absorber and the filter layer. The coarse filter water absorber can reduce the water content in the oil droplets of the recovered engine oil and reduce the oil emulsification.

[0016] (2) The gas engine breather provided by this utility model is equipped with an exhaust port and an explosion-proof valve, and is connected to an exhaust pipe that communicates with the top of the building. When an abnormal situation occurs and the internal pressure of the breather is too high, the gas will be discharged into the air at a higher level, thus improving safety. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 A schematic diagram of the overall structure of the gas engine breather is shown; Figure 2 A diagram illustrating the working process of a gas engine breather is shown.

[0018] In the picture: 1. Main cavity; 2. Air outlet; 3. Exhaust port; 4. Rotary blade separator; 41. Cage-type support frame; 42. Shaft; 43. Blade assembly; 5. Coarse filter water suction device; 6. Filter layer; 7. Gas inlet; 8. Oil return port; 9. Oil-blocking ring. Detailed Implementation

[0019] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0020] like Figure 1-2 As shown, the gas engine breather includes a main chamber 1. The upper part of the main chamber 1 has an outlet 2 and an exhaust port 3. The outlet 2 connects to the engine manifold, allowing the gas to return to the combustion chamber and participate in combustion as part of the working gas. The exhaust port 3 is equipped with an explosion-proof valve and connects to an exhaust pipe, which needs to lead to the exterior of the building's top. The bottom of the main chamber 1 has a blow-by inlet 7 and its valve body. An oil return port 8 is located next to the blow-by inlet 7, and an oil-blocking ring 9 is installed between the blow-by inlet 7 and the oil return port 8.

[0021] Inside the main cavity 1, from bottom to top, there are a rotating blade separator 4, a coarse filter water absorber 5, and a filter layer 6.

[0022] The rotary blade separator 4 includes a cage-type support frame 41 installed on the wall of the main cavity, a rotating shaft 42 is provided at the center of the cage-type support frame 41, and a blade assembly 43 is installed on the rotating shaft 42.

[0023] The rotary blade separator 4 serves two purposes. First, it uses centrifugal force to fling oil droplets in the blown gas outwards, causing them to converge at the edges and separate from the blades, thus improving separation efficiency. Second, because most oil droplets fall from the edges, they are prevented from returning to the blown gas inlet, further enhancing efficiency (because if oil droplets fall to the blown gas inlet, they will be blown back up, forcing already separated droplets to undergo the separation process again, reducing efficiency).

[0024] In this embodiment, the rotary blade separator 4 is passive and driven by the power of airflow. In some embodiments, the rotary blade separator 4 can also be equipped with a drive motor to further improve separation efficiency.

[0025] The coarse filter water absorber 5 adopts a honeycomb structure made of zeolite material and is modularly installed in the main cavity 1. The surface of the honeycomb structure is coated with an oleophobic layer.

[0026] The honeycomb-shaped coarse filter absorber 5 can absorb water on the one hand, and at the same time, the surface of the oleophobic layer blocks oil droplets on the material surface. After collecting, the oil droplets fall under the action of gravity and fall into the rotating blade separator 4 and are thrown to the edge.

[0027] The filter layer 6 uses a multi-layer metal filter screen, which is integrated into a frame installed on the wall of the main cavity. The metal filter screen has a concave shape at the bottom center, allowing oil droplets to fall downwards from all sides.

[0028] In this embodiment, the main cavity 1 adopts a split structure, and the top cover of the main cavity 1 can be rotated and disassembled, which is beneficial for the replacement of internal consumables.

[0029] As can be seen, in this embodiment, the filtration system employs a three-stage filtration process. The rotating blade separator, coarse filter absorber, and filter layer enhance the respirator's ability to separate oil droplets. The coarse filter absorber reduces the water content in the recovered oil droplets, minimizing oil emulsification. The added exhaust port is equipped with an explosion-proof valve and connected to an exhaust pipe leading to the top of the building. In case of abnormal conditions or excessively high internal pressure in the respirator, the leaked air is released into the upper atmosphere, improving safety.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the invention. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this invention.

Claims

1. A gas engine breather comprising a main cavity, a blow-by inlet and valve body, an air outlet, characterised in that, Also includes: A rotary vane separator is disposed within the main cavity, near the gas leakage inlet. A coarse filter water absorber is disposed above the rotary blade separator; A filter layer is disposed on the upper part of the coarse filter water absorber; An exhaust port is located at the upper part of the main cavity and is equipped with an explosion-proof valve.

2. The gas engine aspirator of claim 1, wherein, The rotary blade separator includes a cage-type support frame installed on the wall of the main cavity, and a rotating shaft is provided at the center of the cage-type support frame, on which a blade assembly is mounted.

3. The gas engine aspirator according to claim 1, characterized in that The coarse filter water absorber adopts a honeycomb structure of zeolite material, and the surface of the honeycomb structure is coated with an oleophobic layer.

4. The gas engine aspirator of claim 1, wherein, The filter layer is made of multi-layer metal mesh, which is integrated into a frame installed on the wall of the main cavity.

5. The gas engine aspirator of claim 4, wherein, The metal filter screen has a concave shape at the bottom center.

6. The gas engine aspirator of claim 1, wherein, An oil return port is provided between the gas inlet on the bottom wall of the main cavity and the side wall.

7. The gas engine aspirator of claim 6, wherein, An oil-blocking ring is provided between the gas inlet on the bottom wall of the main cavity and the oil return port.

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