Medium-speed, high-power diesel engine exhaust auxiliary intake equipment

Abstract

This utility model discloses an auxiliary air intake device for a medium-speed, high-power diesel engine. Belonging to the field of fuel engine air intake technology, it includes a reference base. A control circuit is fixedly connected to the upper surface of the reference base. A signal line is fixedly connected to the outer surface of the control circuit. A pressure sensor is fixedly connected to the outer surface of the signal line away from the reference base. A connecting block is fixedly connected to the outer surface of the pressure sensor. The outer surface of the connecting block is correspondingly fixedly connected to the diesel engine air intake. The pressure sensor monitors the pressure. When the safety system detects that the diesel engine has a speed and the boost pressure is <0.03MPa, the signal line transmits a signal to the control circuit. The reference base control circuit then turns on the blower to replenish air. The air enters from the side of the blower casing, is compressed, and forced through the outlet pipe. The air is discharged through the sealing ring, sealing ball valve, connecting pipe, and one-way check valve. When the diesel engine boost pressure is ≥0.03MPa, the air replenishment control circuit switch is turned off, and the blower power is shut off to stop air replenishment.

Description

Technical Field

[0001] This utility model relates to the field of fuel engine intake technology, and more specifically, to an auxiliary intake device for a medium-speed, high-power diesel engine. Background Technology

[0002] With the increasing size of ships, especially the growing demand for large and ocean-going vessels, the power requirements for diesel engines have also increased significantly. However, in actual operation, particularly under low or partial load conditions, diesel engine performance often suffers, resulting in problems such as black smoke emission at low loads and excessively high exhaust temperatures. These issues not only affect the efficiency and fuel consumption of diesel engines but also increase environmental pollution, impacting the overall emission standards of ships. Improvements are urgently needed.

[0003] In summary, how to provide auxiliary intake equipment for medium-speed, high-power diesel engines is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an auxiliary intake device for the combined exhaust of a medium-speed, high-power diesel engine.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A combined exhaust and auxiliary intake device for a medium-speed, high-power diesel engine includes a reference base. A control circuit is fixedly connected to the upper surface of the reference base. A signal line is fixedly connected to the outer surface of the control circuit. A pressure sensing plate is fixedly connected to the outer surface of the signal line away from the reference base. A connecting block is fixedly connected to the outer surface of the pressure sensing plate. The outer surface of the connecting block is correspondingly fixedly connected to the diesel engine intake port.

[0007] On the other hand, a fan housing is provided on the upper surface of the reference base, and a fan is fixedly connected to the outer surface of the input end of the fan housing.

[0008] On the other hand, an outlet pipe is welded to the outer surface of the output end of the fan housing, and a sealing ring is fixedly connected to the outer surface of the outlet pipe near its outer end.

[0009] On the other hand, a bellows is fixedly connected to the outer surface of the sealing ring, and the bellows is made of deformable thermoplastic polyurethane elastomer [TPU].

[0010] On the other hand, a flange is fixedly connected to the outer surface of the bellows, and a sealing ball valve is provided on the outer surface of the flange.

[0011] On the other hand, bolts are provided on the outer surfaces of both sides of the sealing ball valve, and a handle is provided on the upper surface of the sealing ball valve.

[0012] On the other hand, a connecting pipe is provided on the outer surface of the sealing ball valve away from the bellows, and a one-way check valve is provided on the outer surface of the connecting pipe.

[0013] On the other hand, the inner surfaces of both ends of the one-way check valve are provided with sealing rings, and the inner surfaces of both ends of the sealing ball valve are also provided with sealing rings.

[0014] The auxiliary air intake device for medium-speed, high-power diesel engines provided by this utility model uses a reference base as the reference installation position and is fixed to the intake end of the diesel engine by a connecting block. A pressure sensor monitors the pressure. When the safety system detects that the diesel engine has a speed and the boost pressure is <0.03MPa, the signal line transmits the signal to the control circuit. The reference base control circuit turns on the blower to replenish air. The air enters from the side of the blower casing, is compressed, and squeezed into the outlet pipe. It is discharged through the entire passage of the sealing ring, sealing ball valve, connecting pipe, and one-way check valve. When the boost pressure of the diesel engine is ≥0.03MPa, the air replenishment control circuit switch is turned off, and the blower power is turned off to stop air replenishment. When the boost pressure of the diesel engine is <0.03MPa, the air replenishment control circuit switch is turned back on, and the blower power is turned on to replenish air. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 A front view of the overall shape of a specific embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall external shape of a specific embodiment of the present utility model from the rear.

[0018] Figure 3 This is a reverse view of the overall shape of a specific embodiment provided by this utility model;

[0019] Figure 4 This is a schematic diagram of the external shape of the one-way check valve provided in a specific embodiment of this utility model.

[0020] Figure label:

[0021] 1-Reference base; 2-Control circuit; 3-Signal line; 4-Pressure sensor; 5-Connecting block; 6-Fan housing; 7-Fan; 8-Outlet pipe; 9-Sealing ring; 10-Bellwall; 11-Sealing ball valve; 12-Flange; 13-Bolt; 14-Handle; 15-Connecting pipe; 16-One-way check valve; 17-Sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] The core of this utility model is to provide an auxiliary intake device for combining exhaust and ventilation of a medium-speed, high-power diesel engine. Please refer to the attached document for details. Figure 1 -Appendix Figure 4 Let's work together to understand the components that make up this device:

[0024] This auxiliary intake device for a medium-speed, high-power diesel engine includes a reference base 1. A control circuit 2 is fixedly connected to the upper surface of the reference base 1. A signal line 3 is fixedly connected to the outer surface of the control circuit 2. A pressure sensor 4 is fixedly connected to the outer surface of the signal line 3 away from the reference base 1. A connecting block 5 is fixedly connected to the outer surface of the pressure sensor 4. The outer surface of the connecting block 5 is correspondingly fixedly connected to the diesel engine intake port. Specifically, the device is fixed to the diesel engine intake end via the connecting block 5, using the reference base 1 as the reference installation position. The pressure sensor 4 monitors the pressure. When the safety system detects pressure in the diesel engine... When the engine speed and boost pressure are <0.03MPa, signal line 3 transmits the signal to control circuit 2. The reference base 1 control circuit turns on the blower 7 to replenish air. The air enters the blower housing 6 from the side, is compressed, and squeezed into the outlet pipe 8. It is then discharged through the entire passage via sealing ring 9, sealing ball valve 11, connecting pipe 15, and one-way check valve 16. When the diesel engine boost pressure is ≥0.03MPa, the air replenishment control circuit switch is turned off, and the blower 7 is powered off to stop replenishing air. When the diesel engine boost pressure is <0.03MPa, the air replenishment control circuit switch is turned back on, and the blower 7 is powered on to replenish air.

[0025] The upper surface of the reference base 1 is provided with a fan housing 6, and a fan 7 is fixedly connected to the outer surface of the input end of the fan housing 6. Specifically, the fan 7 is connected to an external power supply line, which is a well-established technology and will not be discussed here. The fan 7 outputs mechanical rotation, and air is introduced into the fan housing 6 through the side. After compression, the high-pressure air is discharged through the discharge pipe 8.

[0026] The outer surface of the blower housing 6 is welded with an outlet pipe 8, and a sealing ring 9 is fixedly connected to the outer surface of the outlet pipe 8 near its outer end. Specifically, the outlet pipe 8 provides a stable outlet channel for the air compressed by the blower housing 6, allowing it to continue to be output with a certain inertia. The sealing ring 9 facilitates the sealing connection between the sealing ring 9 and the bellows 10.

[0027] A bellows 10 is fixedly connected to the outer surface of the sealing ring 9. The bellows 10 is made of deformable thermoplastic polyurethane elastomer (TPU). Specifically, the bellows 10 is fixed at one end by the sealing ring 9. The expansion, contraction and angle are adjusted by the deformation of the bellows, which facilitates the installation and adjustment of the front end. The deformable thermoplastic polyurethane elastomer material has good toughness, which ensures stable airflow output.

[0028] A flange 12 is fixedly connected to the outer surface of the bellows 10, and a sealing ball valve 11 is provided on the outer surface of the flange 12; specifically, the sealing ball valve 11 provides space for blocking the airflow, and the flange 12 is conveniently and tightly fixed to the sealing ball valve 11 side by bolts 13.

[0029] Bolts 13 are provided on the outer surfaces of both sides of the sealing ball valve 11, and handles 14 are provided on the upper surface of the sealing ball valve 11. Specifically, the air intake and closing of the air intake system are completed by rotating the handle 14 by external force. The bolts 13 connect the fixing holes on both sides of the sealing ball valve 11 to facilitate fixing.

[0030] A connecting pipe 15 is provided on the outer surface of the sealing ball valve 11 away from the bellows 10, and a one-way check valve 16 is provided on the outer surface of the connecting pipe 15. After the connecting pipe 15 is connected, the one-way check valve 16 ensures the one-way output of the airflow, avoids backflow of the air intake system, and prevents the exhaust of flue gas, which would pollute the surrounding area of ​​the equipment.

[0031] A sealing ring 17 is provided on the inner surface of both ends of the one-way check valve 16, and a sealing ring 17 is also provided on the inner surface of both ends of the sealing ball valve 11; specifically, the sealing ring 17 is inside the sealing ball valve 11 and the one-way check valve 16 to ensure overall sealing.

[0032] In summary: The equipment is installed at the reference base 1, fixed to the diesel engine intake end by the connecting block 5. The pressure sensor 4 monitors the pressure. When the safety system detects that the diesel engine is rotating and the boost pressure is <0.03MPa, the signal line 3 transmits the signal to the control circuit 2. The control circuit of the reference base 1 turns on the blower 7 to replenish air. The air enters from the side of the blower casing 6, is compressed, and then forced into the outlet pipe 8. It is then discharged through the sealing ring 9, sealing ball valve 11, connecting pipe 15, and one-way check valve 16. When the diesel engine boost pressure is ≥0.03MPa, the replenishment... When the air control circuit switch is turned off, the power supply to the blower 7 is turned off, and the air supply stops. When the diesel engine boost pressure is <0.03MPa, the air supply control circuit switch is turned back on, and the power supply to the blower 7 is turned on to supply air. The bellows 10 is fixed at one end by the sealing ring 9. The expansion and contraction and angle are adjusted by the deformation of the bellows, which facilitates the installation and adjustment of the front end. The intake and shutdown of the intake system are completed by rotating the handle 14 by external force. After the connection is completed, the one-way check valve 16 of the connecting pipe 15 ensures the one-way output of the airflow and avoids the backflow of the intake system, which would cause the exhaust gas to be discharged and pollute the surrounding area of ​​the equipment.

[0033] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0034] The above provides a detailed description of the auxiliary intake device for medium-speed, high-power diesel engines. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of these embodiments are merely illustrative of the method and core concepts of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of this invention.

Claims

1. A combined exhaust and auxiliary intake system for a medium-speed, high-power diesel engine, characterized in that, The system includes a reference base (1), a control circuit (2) fixedly connected to the upper surface of the reference base (1), a signal line (3) fixedly connected to the outer surface of the control circuit (2), a pressure sensing plate (4) fixedly connected to the outer surface of the signal line (3) away from the reference base (1), a connecting block (5) fixedly connected to the outer surface of the pressure sensing plate (4), and the outer surface of the connecting block (5) fixedly connected to the diesel engine intake port. A fan housing (6) is provided on the upper surface of the reference base (1), a fan (7) is fixedly connected to the outer surface of the input end of the fan housing (6), and an outlet pipe (8) is welded to the outer surface of the output end of the fan housing (6). A sealing ring (9) is fixedly connected to the outer surface of the outer end of the outlet pipe (8), and the outer surface of the sealing ring (9) is fixedly connected to the outer surface of the sealing ring (9). A bellows (10) is fixedly connected. The bellows (10) is made of deformable thermoplastic polyurethane elastomer. A flange (12) is fixedly connected to the outer surface of the bellows (10). A sealing ball valve (11) is provided on the outer surface of the flange (12). Bolts (13) are provided on the outer surfaces of both sides of the sealing ball valve (11). A handle (14) is provided on the upper surface of the sealing ball valve (11). A connecting pipe (15) is provided on the outer surface of the sealing ball valve (11) away from the bellows (10). A one-way check valve (16) is provided on the outer surface of the connecting pipe (15). Sealing rings (17) are provided on the inner surfaces of both ends of the one-way check valve (16). Sealing rings (17) are also provided on the inner surfaces of both ends of the sealing ball valve (11).

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