Low-temperature starting device of diesel generator

Abstract

The utility model discloses a low-temperature starting device of a diesel generator, which relates to the technical field of diesel generators and comprises an air inlet preheater main body, a heating plate is mounted in the air inlet preheater main body, and a filtering mechanism is mounted on the side wall of the air inlet preheater main body. An air inlet guide pipe is installed on the side, away from the filtering mechanism, of the air inlet preheater body, and an air guide plate is installed on the inner wall of the air inlet guide pipe. By means of the filtering mechanism, the limiting blocks are pressed inwards, then the filtering net is pushed to the proper position in the fixing sleeve, the limiting blocks are ejected out through the elastic force of the limiting springs, the limiting blocks and the limiting holes are clamped and fixed, dismounting and mounting are convenient, dust prevention can be achieved through the filtering net, and meanwhile when the heating piece is damaged, the heating piece can be prevented from being damaged. And fragments of the heating piece are intercepted and protected, and the situation that the fragments generated when the heating piece is damaged enter the engine, and consequently the engine is damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel generators, in particular to a low-temperature starting device for a diesel generator. Background Art

[0002] Starting a diesel generator in a low temperature environment is more difficult than starting it at normal temperature, because the combustion method of a diesel generator relies on compression ignition. During the compression ignition process, the piston compresses the gas in the cylinder to increase its temperature. In a low temperature environment, compression alone may not be able to make the temperature in the cylinder reach the ignition point of the diesel, resulting in the engine being unable to ignite smoothly. It is necessary to preheat the air in the intake pipe to assist the ignition and starting of the diesel generator. When the existing intake pipe preheater is in use, the air entering the intake pipe directly blows the heating plate, affecting the preheating effect. Moreover, when the heating plate of the intake pipe preheater is broken and damaged, the fragments are easy to enter the engine, causing engine damage. Therefore, a low-temperature starting device for a diesel generator is needed.

[0003] The existing low-temperature starting device of a diesel generator cannot perform filtering protection during operation, and the incoming air directly blows the heating plate, resulting in poor preheating effect. Therefore, a low-temperature starting device for a diesel generator is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a low-temperature starting device for a diesel generator to solve the problem that the existing low-temperature starting device for a diesel generator cannot perform filtering protection when in use, the incoming air directly blows the heating plate, and the preheating effect is poor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a low-temperature starting device for a diesel generator, comprising an air inlet preheater body, wherein a heating plate is installed inside the air inlet preheater body.

[0006] A filtering mechanism is installed on the side wall of the air inlet preheater body.

[0007] An air inlet duct is installed on a side of the air inlet preheater body away from the filtering mechanism, and an air guide plate is installed on the inner wall of the air inlet duct.

[0008] Preferably, the heating plates are threadedly connected to the air inlet preheater body, and the heating plates are distributed at equal intervals with the central axis of the air inlet preheater body as the center.

[0009] Preferably, the filtering mechanism includes a fixing sleeve, a limiting hole, a filter screen, a limiting spring and a limiting block. The side wall of the air inlet preheater body is installed with a fixing sleeve, the side wall of the fixing sleeve is provided with a limiting hole, the inner wall of the fixing sleeve is installed with a filter screen, the side wall of the filter screen is installed with a limiting spring, and the outer wall of the limiting spring is installed with a limiting block.

[0010] Preferably, the diameter of the inner wall of the fixing sleeve matches the diameter of the outer wall of the filter screen, and the fixing sleeve is movably connected to the filter screen.

[0011] Preferably, the limiting hole is fixedly engaged with the limiting block, and the limiting block forms a telescopic structure with the filter screen via a limiting spring.

[0012] Preferably, the air guide plates are distributed in a circular array with the central axis of the air inlet duct as the center, and the air guide plates are arranged in a C shape.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model sets a filter mechanism, by pressing the limit block inward, and then pushing the filter to a suitable position inside the fixed sleeve, the limit block is pushed out by the elastic force of the limit spring, so that the limit block is engaged and fixed with the limit hole, which is convenient for disassembly and assembly. The setting of the filter can prevent dust and intercept and protect the fragments of the heating plate when the heating plate is damaged, so as to prevent the fragments generated by the damaged heating plate from entering the interior of the engine and causing damage to the engine.

[0015] 2. The utility model sets an air inlet duct and an air guide plate. The air inlet duct will guide the incoming air to the heating plate for heating, thereby assisting the ignition and starting of the diesel engine. However, the incoming air will blow directly onto the heating plate through the air inlet duct, while the setting of the air guide plate will divide the incoming air flow and change the direction of the incoming air flow, so that it cannot blow directly onto the surface of the heating plate, thereby improving the preheating effect of the heating plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model from the front;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model from the side;

[0018] Figure 3 This is a schematic diagram showing the structure of the internal components of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the filter mechanism of the utility model;

[0020] Figure 5 This is a structural schematic diagram showing some parts of the utility model.

[0021] In the figure: 1. Air inlet preheater body; 2. Heating plate; 3. Filter mechanism; 301. Fixing sleeve; 302. Limiting hole; 303. Filter net; 304. Limiting spring; 305. Limiting block; 4. Air inlet duct; 5. Air guide plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0023] The following describes an embodiment of the utility model based on its overall structure.

[0024] See also Figure 1-5 A low-temperature starting device for a diesel generator comprises an air inlet preheater body 1, a heating plate 2 is installed inside the air inlet preheater body 1, the heating plate 2 is threadedly connected to the air inlet preheater body 1, and the heating plates 2 are evenly spaced and distributed around the central axis of the air inlet preheater body 1.

[0025] See also Figure 1-5 A low-temperature starting device for a diesel generator, a filter mechanism 3 is installed on the side wall of an air inlet preheater body 1, the filter mechanism 3 comprises a fixing sleeve 301, a limiting hole 302, a filter screen 303, a limiting spring 304 and a limiting block 305, a fixing sleeve 301 is installed on the side wall of the air inlet preheater body 1, a limiting hole 302 is provided on the side wall of the fixing sleeve 301, a filter screen 303 is installed on the inner wall of the fixing sleeve 301, a limiting spring 304 is installed on the side wall of the filter screen 303, a limiting block 305 is installed on the outer wall of the limiting spring 304, the inner wall diameter size of the fixing sleeve 301 matches the outer wall diameter size of the filter screen 303, the fixing sleeve 301 and the filter screen 303 are matched. The limit hole 302 is movably connected and fixed with the limit block 305. The limit block 305 forms a telescopic structure with the filter screen 303 through the limit spring 304. Through the set filtering mechanism 3, the limit block 305 is pressed inward, and then the filter screen 303 is pushed to a suitable position inside the fixed sleeve 301. The limit block 305 is pushed out by the elastic force of the limit spring 304, so that the limit block 305 is fixed with the limit hole 302 for easy disassembly and assembly. The setting of the filter screen 303 can prevent dust and intercept and protect the fragments of the heating plate 2 when the heating plate 2 is damaged, so as to prevent the fragments generated by the damage of the heating plate 2 from entering the interior of the engine and causing damage to the engine.

[0026] See also Figure 1-5, a low-temperature starting device for a diesel generator, an air inlet duct 4 is installed on the side of the air inlet preheater body 1 away from the filtering mechanism 3, and an air guide plate 5 is installed on the inner wall of the air inlet duct 4, and the air guide plates 5 are arranged in a circular array with the central axis of the air inlet duct 4 as the center, and the air guide plates 5 are arranged in a C shape. Through the arranged air inlet duct 4 and the air guide plates 5, the air inlet duct 4 will guide the incoming air to the heating plate 2 for heating, and assist the ignition and starting of the diesel engine, but the incoming air will directly blow the heating plate 2 through the air inlet duct 4, and the setting of the air guide plate 5 will divide the incoming air flow, change the air flow direction of the incoming air, so that it cannot directly blow on the surface of the heating plate 2, thereby improving the preheating effect of the heating plate 2.

[0027] Working principle: When in use, first move the device to the desired position, then press the limit block 305 inward, and then push the filter 303 along the inner wall of the fixing sleeve 301 to the appropriate position. At this time, the limit block 305 is pushed out by the elastic force of the limit spring 304, so that the limit block 305 is engaged and fixed with the limit hole 302, which is convenient for disassembly and assembly. The setting of the filter 303 can prevent dust from the air intake duct, and can also intercept and protect the fragments of the heating plate 2 when the heating plate 2 is damaged, so as to avoid damage to the heating plate 2 The generated debris enters the interior of the engine, causing damage to the engine, and the air inlet duct 4 will guide the incoming air to the heating plate 2 for heating, assisting the ignition and starting of the diesel engine, but the incoming air will blow directly onto the heating plate 2 through the air inlet duct 4, and the setting of the air guide plate 5 will divide the incoming air flow and change the air flow direction of the incoming air so that it cannot blow directly onto the surface of the heating plate 2, thereby improving the preheating effect of the heating plate 2, thus completing the use process of the device. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low temperature starting device for a diesel generator, comprising an air inlet preheater body (1), characterized in that: A heating plate (2) is installed inside the air inlet preheater body (1); A filtering mechanism (3) is installed on the side wall of the air inlet preheater body (1); An air inlet duct (4) is installed on the side of the air inlet preheater body (1) away from the filtering mechanism (3), and an air guide plate (5) is installed on the inner wall of the air inlet duct (4).

2. A low temperature starting device for a diesel generator according to claim 1, characterized in that: The heating plates (2) are threadedly connected to the air inlet preheater body (1), and the heating plates (2) are arranged at equal intervals with the central axis of the air inlet preheater body (1) as the center.

3. A low temperature starting device for a diesel generator according to claim 1, characterized in that: The filtering mechanism (3) comprises a fixing sleeve (301), a limiting hole (302), a filter screen (303), a limiting spring (304) and a limiting block (305); the fixing sleeve (301) is installed on the side wall of the air inlet preheater body (1); the limiting hole (302) is provided on the side wall of the fixing sleeve (301); the filter screen (303) is installed on the inner wall of the fixing sleeve (301); the limiting spring (304) is installed on the side wall of the filter screen (303); and the limiting block (305) is installed on the outer wall of the limiting spring (304).

4. A low temperature starting device for a diesel generator according to claim 3, characterized in that: The diameter size of the inner wall of the fixing sleeve (301) matches the diameter size of the outer wall of the filter screen (303), and the fixing sleeve (301) is movably connected to the filter screen (303).

5. A low temperature starting device for a diesel generator according to claim 3, characterized in that: The limiting hole (302) is fixedly engaged with the limiting block (305), and the limiting block (305) forms a telescopic structure with the filter screen (303) via a limiting spring (304).

6. A low temperature starting device for a diesel generator according to claim 1, characterized in that: The air guide plates (5) are arranged in a circular array with the central axis of the air inlet duct (4) as the center, and the air guide plates (5) are arranged in a C shape.

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