Natural gas engine supercharger water cooling structure

Abstract

The utility model discloses a natural gas engine supercharger water cooling structure which comprises a supercharger middle body and further comprises a supercharger water inlet pipe assembly, and the supercharger water inlet pipe assembly is communicated with the front face of the supercharger middle body. The supercharger water return pipe assembly is communicated with the back surface of the supercharger middle body; the supercharger water inlet pipe assembly comprises a degassing connector. A supercharger water return pipe assembly, a supercharger water inlet pipe assembly and a supercharger middle body are assembled; the cooling water jacket is arranged in the supercharger intermediate body, so that cooling liquid continuously circulates in the cooling water jacket, a supercharger shaft and a bearing are cooled, the cooling mode can effectively reduce the temperature of the supercharger in the working process, damage caused by overheating is prevented, and in addition, the supercharger intermediate body is simple in structure, low in cost and easy to popularize. On the basis of meeting the power performance of the original engine, the failure rate of the supercharger can be well improved.

Description

Technical Field

[0001] This utility model belongs to the field of engine fuel technology. Specifically, this utility model relates to a water cooling structure for a natural gas engine turbocharger. Background Technology

[0002] The working principle of water cooling for the turbocharger body is to install a cooling water jacket inside the turbocharger body, allowing coolant to circulate continuously within it, thereby cooling the turbocharger shaft and bearings. This cooling method can effectively reduce the temperature of the turbocharger during operation and prevent damage caused by overheating.

[0003] The turbocharger experienced a casing malfunction due to wear of the floating bearing. Upon disassembly and inspection, it was discovered that excessively high temperatures at the floating bearing location caused oil coking. Analysis concluded that the primary cause of the oil coking was the turbocharger's excessively high regenerative braking temperature.

[0004] To reduce the turbocharger's regenerative temperature, the turbocharger's regenerative temperature decreased by 150°C after applying this invention, meeting the specification requirements.

[0005] This invention has a simple structure and low cost. While meeting the power performance requirements of the original engine, it can significantly improve the failure rate of the turbocharger. Utility Model Content

[0006] This invention provides a water-cooling structure for a natural gas engine turbocharger, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a water cooling structure for a natural gas engine turbocharger, including a turbocharger intermediate body, a turbocharger inlet pipe assembly connected to the front side of the turbocharger intermediate body; and a turbocharger return pipe assembly connected to the back side of the turbocharger intermediate body.

[0008] The booster water inlet pipe assembly includes a degassing connector, which is connected to the water inlet of the booster intermediate body; and a booster water inlet pipe, which is connected to the degassing connector.

[0009] The booster return water pipe assembly includes an oil passage connector connected to the outlet of the booster intermediate body; a booster return water pipe connected to the oil passage connector; and a sealing gasket disposed at the connection between the oil passage connector and the booster return water pipe.

[0010] Preferably, a cooling water jacket is provided inside the turbocharger intermediate body.

[0011] The beneficial effects of adopting the above technical solutions are:

[0012] 1. This utility model has a simple structure and low cost. While meeting the power performance requirements of the original engine, it can greatly improve the failure rate of the turbocharger.

[0013] 2. This utility model assembles a turbocharger return water pipe assembly, a turbocharger inlet water pipe assembly, and a turbocharger intermediate body; a cooling water jacket is installed in the turbocharger intermediate body, so that the coolant continuously circulates in it, thereby cooling the turbocharger shaft and bearings. This cooling method can effectively reduce the temperature of the turbocharger during operation and prevent damage caused by overheating. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure provided by this utility model;

[0015] Figure 2 This is a structural schematic diagram of the inlet pipe assembly of the booster of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the booster return water pipe assembly of this utility model;

[0017] in:

[0018] 1. Intensifier intermediate body; 2. Intensifier inlet water pipe assembly; 3. Intensifier return water pipe assembly;

[0019] 21. Degassing connector; 22. Booster inlet water pipe;

[0020] 31. Oil fitting; 32. Intensifier return water pipe; 33. Sealing gasket. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0022] like Figures 1 to 3 As shown, this utility model is a water-cooled structure for a natural gas engine turbocharger. It has a simple structure and low cost. While meeting the power performance requirements of the original engine, it can significantly improve the turbocharger failure rate.

[0023] Specifically, such as Figures 1 to 3 As shown, it includes a booster intermediate body 1, a booster inlet pipe assembly 2, which is connected to the front side of the booster intermediate body 1; and a booster return pipe assembly 3, which is connected to the back side of the booster intermediate body 1.

[0024] The turbocharger inlet water pipe assembly 2 includes a degassing joint 21, which is connected to the water inlet of the turbocharger intermediate body 1; a turbocharger inlet water pipe 22, which is connected to the degassing joint 21;

[0025] The turbocharger return water pipe assembly 3 includes an oil passing joint 31, which is connected to the water outlet of the turbocharger intermediate body 1; a turbocharger return water pipe 32, which is connected to the oil passing joint 31; a sealing washer 33, which is arranged at the connection between the oil passing joint 31 and the turbocharger return water pipe 32.

[0026] A cooling water jacket is arranged inside the turbocharger intermediate body 1.

[0027] The following uses specific embodiments to elaborate on the specific working methods: Embodiment 1

[0028] The turbocharger return water pipe assembly 3 adopts a return water pipe routing that goes upward all the way (the return water port is higher than the water outlet of the turbocharger), without a "U" - shaped or "zigzag" structure, avoiding the situation that when the engine is at low idle speed or suddenly stops, the electronic water pump does not work, and the "U" - shaped or "zigzag" design of the return water pipe and the water interface of the return water pipe is lower than the turbocharger, resulting in the inability of the turbocharger return water to circulate and the inability of the turbocharger intermediate body to be cooled. According to tests, when the machine stops, the water flow rate before optimization is 0 L / min, and the water flow rate after optimization of the present utility model is 0.5 L / min.

[0029] In addition, due to the limitation of the engine structure boundary conditions, the turbocharger inlet water pipe assembly 2 cannot be designed without a "U" - shaped or "zigzag" structure. Therefore, a degassing design is added to the turbocharger inlet water pipe assembly 2, and the gas in the water circuit is discharged through the degassing joint 21 to avoid the influence of air bubbles in the water circuit on the cooling water jacket inside the turbocharger intermediate body 1. Embodiment 2

[0030] A cooling water jacket is arranged inside the turbocharger intermediate body 1, enabling the coolant to circulate continuously therein, thereby cooling the turbocharger shaft and bearings. This cooling method can effectively reduce the temperature of the turbocharger during operation and prevent damage caused by overheating.

[0031] The above has made an exemplary description of the present utility model in combination with the drawings. Obviously, the specific implementation of the present utility model is not limited by the above - mentioned methods. As long as various non - substantial improvements are made by adopting the method concept and technical solution of the present utility model; or without improvement, the above - mentioned concept and technical solution of the present utility model are directly applied to other occasions, they are all within the protection scope of the present utility model.

Claims

1. A water-cooled structure for a natural gas engine turbocharger, comprising a turbocharger intermediate body (1), characterized in that: Also includes The booster inlet pipe assembly (2) is connected to the front of the booster intermediate body (1); The booster return water pipe assembly (3) is connected to the back side of the booster intermediate body (1); The booster inlet pipe assembly (2) includes Degassing connector (21), which is connected to the water inlet of the booster intermediate body (1); The booster inlet pipe (22) is connected to the degassing connector (21); The booster return water pipe assembly (3) includes Oil connector (31), which is connected to the outlet of the booster intermediate body (1); The turbocharger return water pipe (32) is connected to the oil passage connector (31); A sealing gasket (33) is provided at the connection between the oil connector (31) and the turbocharger return water pipe (32).

2. The water-cooled structure for a natural gas engine turbocharger according to claim 1, characterized in that: The turbocharger intermediate body (1) is equipped with a cooling water jacket inside.

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