A drive structure for a marine open-type screw compressor

Abstract

The utility model relates to a driving structure of a marine open screw compressor, including a clutch speed increasing box, a diesel engine, an actuator, an electronic speed regulating system board and a power supply; the marine open screw compressor is connected to the clutch speed increasing box, the clutch speed increasing box is connected to the diesel engine, the actuator, the electronic speed regulating system board and the power supply are all installed on the diesel engine, and the electronic speed regulating system board is electrically connected to the actuator and the power supply respectively. This solution drives the marine open screw compressor through a diesel engine, which can overcome the problem that the marine open screw compressor cannot be driven due to the inability to provide sufficient power grid capacity on the ship.

Description

Technical Field

[0001] The utility model relates to the technical field of marine open-type screw compressors, in particular to a driving structure of a marine open-type screw compressor. Background Art

[0002] With the continuous development of maritime transportation and offshore fishing, marine refrigeration compressor units have been more and more widely used, especially in large-capacity freezing, refrigerated transportation, water freezing processing, and preservation of seafood on fishing vessels. Open screw compressors are usually driven by motors, and the motor power is generally large, ranging from tens of kilowatts to thousands of kilowatts; but because they are used on ships, they cannot provide sufficient grid capacity for the motors. Utility Model Content

[0003] In order to solve the above problems in the prior art, the utility model provides a driving structure of a marine open-type screw compressor, which can provide a new way for driving the marine open-type screw compressor.

[0004] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include: a driving structure of a marine open screw compressor, including a clutch speed increasing box, a diesel engine, an actuator, an electronic speed regulating system board and a power supply;

[0005] The marine open screw compressor is connected to the clutch speed increaser, the clutch speed increaser is connected to the diesel engine, the actuator, the electronic speed control system board and the power supply are all installed on the diesel engine, and the electronic speed control system board is electrically connected to the actuator and the power supply respectively.

[0006] Preferably, it further comprises a first coupling and a second coupling;

[0007] The marine open screw compressor is connected to the clutch speed increasing box via the first coupling, and the clutch speed increasing box is connected to the diesel engine via the second coupling.

[0008] Preferably, it also includes a solenoid valve;

[0009] The solenoid valve is installed on the clutch speed increasing box.

[0010] Preferably, the power supply is a 24V power supply.

[0011] Preferably, it also includes a speed sensor;

[0012] The speed sensor is installed on the diesel engine, and the speed sensor is electrically connected to the electronic speed control system board.

[0013] Preferably, it also includes a high-speed and low-speed switching switch;

[0014] The high-speed and low-speed switching switch is installed on the diesel engine, and the high-speed and low-speed switching switch is electrically connected to the electronic speed control system board.

[0015] The beneficial effect of the utility model is that the solution drives the marine open screw compressor through a diesel engine, thereby overcoming the problem that the marine open screw compressor cannot be driven due to insufficient power grid capacity on the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a driving structure of a marine open screw compressor of the utility model;

[0017] Description of reference numerals:

[0018] 1. Marine open screw compressor; 2. First coupling; 3. Clutch speed increaser; 4. Solenoid valve; 5. Second coupling; 6. Diesel engine; 7. Speed ​​sensor; 8. Actuator; 9. Electronic speed control system board; 10. High and low speed switch; 11. Power supply. DETAILED DESCRIPTION

[0019] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0020] Embodiment 1

[0021] Please refer to Figure 1 As shown, a driving structure of a marine open screw compressor includes a clutch speed increasing box 3, a diesel engine 6, an actuator 8, an electronic speed regulating system board 9 and a power supply 11;

[0022] The marine open screw compressor 1 is connected to the clutch speed increaser 3, the clutch speed increaser 3 is connected to the diesel engine 6, the actuator 8, the electronic speed control system board 9 and the power supply 11 are all installed on the diesel engine 6, and the electronic speed control system board 9 is electrically connected to the actuator 8 and the power supply 11 respectively.

[0023] In this embodiment, it also includes a first coupling 2 and a second coupling 5;

[0024] The marine open screw compressor 1 is connected to the clutch speed increasing box 3 via the first coupling 2 , and the clutch speed increasing box 3 is connected to the diesel engine 6 via the second coupling 5 .

[0025] In this embodiment, a solenoid valve 4 is also included;

[0026] The solenoid valve 4 is installed on the clutch speed increasing box 3 .

[0027] In this embodiment, the power supply 11 is a 24V power supply 11.

[0028] In this embodiment, a speed sensor 7 is also included;

[0029] The speed sensor 7 is installed on the diesel engine 6 , and the speed sensor 7 is electrically connected to the electronic speed control system board 9 .

[0030] In this embodiment, a high-speed and low-speed switching switch 10 is also included;

[0031] The high-low speed switching switch 10 is installed on the diesel engine 6, and the high-low speed switching switch 10 is electrically connected to the electronic speed control system board 9, so that the marine open-type screw compressor 1 can be easily and quickly switched between low speed and high speed.

[0032] The scheme works as follows:

[0033] The marine open screw compressor 1 is connected to the clutch speed increaser 3 through the first coupling 2, and the clutch speed increaser 3 is connected to the diesel engine 6 through the second coupling 5. The clutch speed increaser 3 has the functions of speed increase, clutch and power transmission. The clutch speed increaser 3 is equipped with a solenoid valve 4. When the solenoid valve 4 is not energized, the driving gear and the driven gear in the clutch speed increaser 3 are in a disengaged state, and the power of the diesel engine 6 cannot be transmitted to the marine open screw compressor 1 through the clutch speed increaser 3; when the solenoid valve 4 is energized, the driving gear and the driven gear in the clutch speed increaser 3 are in a meshing state, and the power of the diesel engine 6 is transmitted to the marine open screw compressor 1 through the clutch speed increaser 3, and drives the marine open screw compressor 1 to operate. The diesel engine 6 is equipped with a speed sensor 7, an actuator 8, an electronic speed control system board 9, a high-speed and low-speed switching switch 10 and a 24V power supply 11; wherein, the 24V power supply 11 is used to supply power to the electronic speed control system board 9; the speed sensor 7 is used to detect the speed of the diesel engine 6 and transmit the speed signal to the electronic speed control system board 9, and the electronic speed control system board 9 compares the actual speed value with the set value. The difference between the actual speed value and the set value is sorted and amplified by the control circuit and drives the output shaft of the actuator 8, and the speed control gear rod of the fuel injection pump is pulled by the adjustment rod to adjust the fuel supply to maintain the preset speed; the high-speed switching switch 10 is used to switch the low-speed and high-speed operation of the marine open screw compressor 1. In order to avoid excessive torque when the marine open screw compressor 1 is just started, which may cause the diesel engine 6 to stall, it is necessary to first turn the high-low speed switch 10 to the "low" speed gear when the marine open screw compressor 1 is just started. At this time, the marine open screw compressor 1 is set to run at a low speed of 1500r / min. After 10 to 15 seconds when the marine open screw compressor 1 runs stably, turn the high-low speed switch 10 to the "high" speed gear. At this time, the marine open screw compressor 1 is set to run at a high speed of 3000r / min.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A driving structure of a marine open screw compressor, characterized in that: Including marine clutch speed increaser, diesel engine, actuator, electronic speed control system board and power supply; The marine open screw compressor is connected to the clutch speed increaser, the clutch speed increaser is connected to the diesel engine, the actuator, the electronic speed control system board and the power supply are all installed on the diesel engine, and the electronic speed control system board is electrically connected to the actuator and the power supply respectively.

2. The driving structure of the marine open screw compressor according to claim 1, characterized in that: Also includes a first coupling and a second coupling; The marine open screw compressor is connected to the clutch speed increasing box via the first coupling, and the clutch speed increasing box is connected to the diesel engine via the second coupling.

3. The driving structure of the marine open screw compressor according to claim 1, characterized in that: Also includes a solenoid valve; The solenoid valve is installed on the clutch speed increasing box.

4. The driving structure of the marine open screw compressor according to claim 1, characterized in that: The power supply is a 24V power supply.

5. The driving structure of the marine open screw compressor according to claim 1, characterized in that: Also includes a speed sensor; The speed sensor is installed on the diesel engine, and the speed sensor is electrically connected to the electronic speed control system board.

6. The driving structure of the marine open screw compressor according to claim 1, characterized in that: Also includes a high and low speed switch; The high-speed and low-speed switching switch is installed on the diesel engine, and the high-speed and low-speed switching switch is electrically connected to the electronic speed control system board.

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