A planetary speed increasing gearbox type steam compressor

Abstract

The utility model provides a planetary speed-increasing gearbox type steam compressor, including a motor, a planetary speed-increasing gearbox, a lubricating oil tank, an oil pump, a lubricating oil cooler, and a compressor. The motor and the planetary speed-increasing gearbox are both arranged on the lubricating oil tank, the motor is connected to the gearbox input shaft on the planetary speed-increasing gearbox, the gearbox output shaft on the planetary speed-increasing gearbox is connected to the impeller in the compressor, the oil pump is used to pump the lubricating oil in the lubricating oil tank into the planetary speed-increasing gearbox, and the lubricating oil cooler is used to cool the lubricating oil flowing out of the planetary speed-increasing gearbox. The utility model uses a planetary speed-increasing gearbox as a speed-increasing device. Compared with the traditional parallel shaft gearbox, the planetary speed-increasing gearbox has the advantages of a large speed ratio and a compact structure, which is conducive to the miniaturization of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of steam compressors, in particular to a planetary speed increasing gearbox type steam compressor. Background Art

[0002] With the development of energy conservation and emission reduction requirements in various industrial fields, the market demand for low-power, high-efficiency, and miniaturized steam compressors is growing. Existing steam compressors usually use a parallel shaft single-stage speed-increasing gearbox to increase the speed of the motor to obtain a higher compressor speed. After the motor increases the speed through the gearbox, it drives the impeller in the compressor to rotate at a high speed, and the steam is compressed by the rotation of the impeller.

[0003] However, the existing steam compressors have the following shortcomings: 1. In order to obtain a high speed ratio, the traditional parallel shaft gearbox needs to have a multi-stage gear speed increaser inside, which will result in a huge gearbox, making the volume and weight of the entire steam compressor relatively large, which is not conducive to the miniaturization of the product. 2. When the parallel shaft gearbox is running at high speed, it is necessary to lubricate the sliding bearing inside it well to reduce the friction of the sliding bearing. As the speed ratio and the number of gear stages of the gearbox increase, the demand for lubricating oil inside it surges. Therefore, it is necessary to equip it with a huge lubrication system to meet the lubrication needs of the gearbox, which greatly increases the overall volume, weight and complexity of the steam compressor, and energy consumption also increases accordingly. Summary of the invention

[0004] The utility model aims to solve the deficiencies in the prior art and provide a planetary speed increasing gearbox type steam compressor.

[0005] The purpose of the utility model is achieved through the following technical solutions: a planetary speed-increasing gearbox type steam compressor, comprising a motor, a planetary speed-increasing gearbox, a lubricating oil tank, an oil pump, a lubricating oil cooler, and a compressor, wherein the motor and the planetary speed-increasing gearbox are both arranged on the lubricating oil tank, the motor is connected to the gearbox input shaft on the planetary speed-increasing gearbox, the gearbox output shaft on the planetary speed-increasing gearbox is connected to the impeller in the compressor, the oil pump is used to pump the lubricating oil in the lubricating oil tank into the planetary speed-increasing gearbox, and the lubricating oil cooler is used to cool the lubricating oil flowing out of the planetary speed-increasing gearbox.

[0006] Preferably, the lubricating oil tank has a rectangular structure in shape, and a lubricating oil filling port is provided on one side of the lubricating oil tank.

[0007] Preferably, the compressor includes a volute, a guide tube is provided on one side of the volute, a back plate is provided on the other side of the volute, and the back plate is connected to the planetary speed increase gearbox through a semi-flange; the impeller is located in the volute, the gearbox output shaft passes through the volute, and a seal is provided between the gearbox output shaft and the volute.

[0008] Preferably, the sealing member is a carbon sealing ring.

[0009] Preferably, the speed ratio of the planetary speed increasing gearbox is 12:1-17:1.

[0010] Preferably, the output shaft of the motor is connected to the gearbox input shaft on the planetary speed increasing gearbox via a coupling.

[0011] Preferably, the lubricating oil tank is provided with a lubricating oil output port and a lubricating oil return port, the housing of the planetary speed-increasing gearbox is provided with a lubricating oil inlet and a lubricating oil outlet, the lubricating oil output port on the lubricating oil tank is connected to the input port on the oil pump through a pipeline, the output port on the oil pump is connected to the lubricating oil inlet on the housing of the planetary speed-increasing gearbox through a pipeline, the lubricating oil outlet on the housing of the planetary speed-increasing gearbox is connected to the inlet on the lubricating oil cooler through a pipeline, and the outlet on the lubricating oil cooler is connected to the lubricating oil return port on the lubricating oil tank through a pipeline.

[0012] Preferably, the lubricating oil cooler is an air-cooled lubricating oil cooler or a water-cooled lubricating oil cooler.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model uses a planetary speed-increasing gearbox as a speed-increasing device. Compared with the traditional parallel shaft gearbox, the planetary speed-increasing gearbox has the advantages of a large speed ratio and a compact structure, which is conducive to the miniaturization of the product.

[0015] 2. The utility model has a relatively small demand for lubrication during operation, which greatly reduces the volume and operating power of the lubrication system and reduces the energy consumption of the lubrication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the utility model.

[0017] Figure 2 It is an axonometric drawing of the present utility model.

[0018] In the figure: 1. Motor, 2. Planetary speed increasing gearbox, 2-1. Gearbox output shaft, 3. Compressor, 3-1. Volute, 3-2. Guide tube, 3-3. Output port, 3-4. Impeller, 3-5. Back plate, 3-6. Seal, 4. Coupling, 5. Lubricating oil tank, 5-1. Lubricating oil filling port, 6. Oil pump, 7. Half flange, 8. Lubricating oil cooler. DETAILED DESCRIPTION

[0019] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0020] like Figure 1 to Figure 2 As shown, a planetary speed increasing gearbox type steam compressor includes a motor 1, a planetary speed increasing gearbox 2, a lubricating oil tank 5, an oil pump 6, a lubricating oil cooler 8, and a compressor 3. The motor 1 and the planetary speed increasing gearbox 2 are both arranged on the lubricating oil tank 5, the motor 1 is connected to the gearbox input shaft on the planetary speed increasing gearbox 2, the gearbox output shaft 2-1 on the planetary speed increasing gearbox 2 is connected to the impeller 3-4 in the compressor 3, the oil pump 6 is used to pump the lubricating oil in the lubricating oil tank 5 into the planetary speed increasing gearbox 2, and the lubricating oil cooler 8 is used to cool the lubricating oil flowing out of the planetary speed increasing gearbox 2.

[0021] In the utility model, the motor 1 drives the gearbox input shaft on the planetary speed-increasing gearbox 2 to rotate, and after being accelerated by the planetary gearbox, the impeller 3-4 in the compressor 3 is driven to rotate through the gearbox output shaft 2-1; the planetary speed-increasing gearbox 2 is used as a speed-increasing device, and compared with the traditional parallel shaft gearbox, the planetary speed-increasing gearbox 2 has the advantages of a large speed ratio and a small and compact structure, and the demand for lubrication during operation is relatively small. Under the same operating conditions, the lubrication demand of the planetary speed-increasing gearbox 2 is only 1 / 10 of that of the traditional parallel shaft gearbox, which can greatly reduce the volume and operating power of the lubrication system and reduce the energy consumption of the lubrication system. The lubrication system in the utility model is composed of a lubricating oil tank 5, an oil pump 6, and a lubricating oil cooler 8. The lubricating oil is stored in the lubricating oil tank 5. The oil pump 6 pumps the lubricating oil in the lubricating oil tank 5 into the planetary speed-increasing gearbox 2. The lubricating oil in the planetary speed-increasing gearbox 2 will pass through the lubricating oil cooler 8 during the process of returning to the lubricating oil tank 5. The lubricating oil is cooled by the lubricating oil cooler 8, so that the lubricating oil is in a lower temperature state. While realizing the lubrication function, the gears, bearings and other components inside the planetary speed-increasing gearbox 2 can also be cooled and cooled. The service life of the above components can be improved by cooling. In the utility model, the planetary speed-increasing gearbox 2 and the motor 1 are directly arranged on the lubricating oil tank 5. The lubricating oil tank 5 is located at the bottom of the planetary speed-increasing gearbox 2 and the motor 1. While realizing the oil storage function, the lubricating oil tank 5 also serves as the base of the planetary speed-increasing gearbox 2 and the motor 1. This structural layout makes the structure of the entire steam compressor more compact and reduces the space occupied by the steam compressor when it is installed.

[0022] Among them, the lubricating oil tank 5 is provided with a lubricating oil outlet and a lubricating oil return port, and the outer shell of the planetary speed-increasing gearbox 2 is provided with a lubricating oil inlet and a lubricating oil outlet. The lubricating oil outlet on the lubricating oil tank 5 is connected to the input port on the oil pump 6 through a pipeline, and the output port 3-3 on the oil pump 6 is connected to the lubricating oil inlet on the outer shell of the planetary speed-increasing gearbox 2 through a pipeline. The lubricating oil outlet on the outer shell of the planetary speed-increasing gearbox 2 is connected to the inlet on the lubricating oil cooler 8 through a pipeline, and the outlet on the lubricating oil cooler 8 is connected to the lubricating oil return port on the lubricating oil tank 5 through a pipeline. The lubricating oil in the lubricating oil tank 5 flows out through the lubricating oil outlet and flows into the planetary speed-increasing gearbox 2 through the pipeline. The lubricating oil in the planetary speed-increasing gearbox 2 flows out from the lubricating oil outlet on the outer shell and enters the lubricating oil cooler 8 through the pipeline. After being cooled by the lubricating oil cooler 8, the lubricating oil flows back to the lubricating oil tank 5 through the pipeline.

[0023] Specifically, the compressor 3 includes a volute 3-1, a guide tube 3-2 is provided on one side of the volute 3-1, a back plate 3-5 is provided on the other side of the volute 3-1, and the back plate 3-5 is connected to the planetary speed increasing gearbox 2 through a half flange 7. An output port 3-3 is provided on the volute 3-1, an impeller 3-4 is located in the volute 3-1, a gearbox output shaft 2-1 passes through the volute 3-1, and a seal 3-6 is provided between the gearbox output shaft 2-1 and the volute 3-1. The compressed steam enters the volute 3-1 through the guide tube 3-2, and the steam is discharged from the output port 3-3 on the volute 3-1 after being compressed by the rotating impeller 3-4.

[0024] In this embodiment, the sealing member 3 - 6 is a carbon sealing ring.

[0025] The lubricating oil tank 5 has a rectangular parallelepiped structure, and a lubricating oil adding port 5-1 is provided on one side of the lubricating oil tank 5. Lubricating oil is added or replaced into the lubricating oil tank 5 through the lubricating oil adding port 5-1.

[0026] The speed ratio of the planetary speed increasing gearbox 2 can be set according to actual needs. In this embodiment, the speed ratio of the planetary speed increasing gearbox 2 is 12:1-17:1.

[0027] The output shaft of the motor 1 is connected to the gearbox input shaft of the planetary speed increasing gearbox 2 via a coupling 4 .

[0028] Preferably, the lubricating oil cooler 8 is an air-cooled lubricating oil cooler or a water-cooled lubricating oil cooler.

[0029] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.

Claims

1. A planetary speed increasing gearbox type steam compressor, characterized in that: It includes a motor, a planetary speed-increasing gearbox, a lubricating oil tank, an oil pump, a lubricating oil cooler and a compressor. The motor and the planetary speed-increasing gearbox are both arranged on the lubricating oil tank. The motor is connected to the gearbox input shaft on the planetary speed-increasing gearbox. The gearbox output shaft on the planetary speed-increasing gearbox is connected to the impeller in the compressor. The oil pump is used to pump the lubricating oil in the lubricating oil tank into the planetary speed-increasing gearbox. The lubricating oil cooler is used to cool the lubricating oil flowing out of the planetary speed-increasing gearbox.

2. A planetary speed increasing gearbox type steam compressor according to claim 1, characterized in that: The lubricating oil tank has a rectangular parallelepiped structure, and a lubricating oil adding port is arranged on one side of the lubricating oil tank.

3. A planetary speed increasing gearbox type steam compressor according to claim 1, characterized in that: The compressor includes a volute, a guide tube is provided on one side of the volute, a back plate is provided on the other side of the volute, and the back plate is connected to the planetary speed increasing gearbox through a semi-flange; the impeller is located in the volute, the gearbox output shaft passes through the volute, and a seal is provided between the gearbox output shaft and the volute.

4. A planetary speed increasing gearbox type steam compressor according to claim 3, characterized in that: The sealing element is a carbon sealing ring.

5. A planetary speed increasing gearbox type steam compressor according to claim 1, characterized in that: The speed ratio of the planetary speed increasing gearbox is 12:1-17:

1.

6. A planetary speed increasing gearbox type steam compressor according to claim 1, characterized in that: The output shaft of the motor is connected to the gear box input shaft on the planetary speed increasing gear box through a coupling.

7. A planetary speed increasing gearbox type steam compressor according to claim 1, characterized in that: The lubricating oil tank is provided with a lubricating oil output port and a lubricating oil return port, the shell of the planetary speed increasing gearbox is provided with a lubricating oil inlet and a lubricating oil outlet, the lubricating oil output port on the lubricating oil tank is connected with the input port on the oil pump through a pipeline, the output port on the oil pump is connected with the lubricating oil inlet on the shell of the planetary speed increasing gearbox through a pipeline, the lubricating oil outlet on the shell of the planetary speed increasing gearbox is connected with the inlet on the lubricating oil cooler through a pipeline, and the outlet on the lubricating oil cooler is connected with the lubricating oil return port on the lubricating oil tank through a pipeline.

8. A planetary speed increasing gearbox type steam compressor according to claim 1, characterized in that: The lubricating oil cooler is an air-cooled lubricating oil cooler or a water-cooled lubricating oil cooler.

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