Combined cooling system of compressor oil station

Abstract

The utility model relates to the technical field of mechanical vapor recompression (MVR), and discloses a combined cooling system of a compressor oil station, which comprises an oil tank, a compressor fixed on the oil tank, a motor, a heat exchanger and an oil pump, an oil inlet section of the heat exchanger is connected with the oil tank through a first oil pipe and the compressor, and a water inlet end and a water outlet end of the heat exchanger are connected with a cooling circulation system. The oil outlet end of the heat exchanger is connected with one end of the coil pipe through a second oil pipe, and the other end of the coil pipe is connected with the compressor through a third oil pipe and a filter; the compressor is connected with an oil return pipe, the oil return pipe is connected with the oil tank, and the coil pipe faces a cooling fan of the motor. A group of coil pipes are additionally arranged, the coil pipes are positioned at the tail part of the motor, and residual wind power of a motor cooling fan is utilized to secondarily cool lubricating oil, so that the effect of reducing the temperature of the lubricating oil is achieved.

Description

Technical Field

[0001] This utility model relates to the field of MVR technology, and in particular to a combined cooling system for a compressor oil station. Background Technology

[0002] For steam compressors, a good lubrication system is crucial for stable operation and service life, and the temperature of the lubricating oil is an important factor affecting the oil viscosity, pressure, and flow rate.

[0003] The impact of excessively high lubricating oil temperature on the system: Compressor skids are widely used in various processes, playing a crucial role in the flow of gas within the system; therefore, their stability is paramount. Existing compressor lubricating oil cooling paths are shown in the attached manual. Figure 4 As shown, the electric oil pump pumps lubricating oil into the heat exchanger for heat exchange. After heat exchange, the lubricating oil is filtered and then enters the compressor to lubricate it. However, in many southern regions during the summer, the high ambient temperature leads to excessively high temperatures in the system's circulating water, resulting in excessively high temperatures in the lubricating oil system cooled by the circulating water. This causes the viscosity of the lubricating oil to decrease, reducing its lubrication effect, decreasing equipment stability, increasing the failure rate, and shortening the compressor's lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a combined cooling system for a compressor oil station. By adding a set of coils located at the tail of the motor, the residual airflow from the motor cooling fan is used to cool the lubricating oil a second time, thereby reducing the temperature of the lubricating oil.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A combined cooling system for a compressor oil station includes an oil tank, a compressor, a motor, a heat exchanger, and an oil pump fixed to the oil tank. The oil inlet section of the heat exchanger is connected to the oil tank via a first oil pipe and the compressor. The water inlet and outlet of the heat exchanger are connected to a cooling circulation system. The oil outlet of the heat exchanger is connected to one end of a coil via a second oil pipe. The other end of the coil is connected to the compressor via a third oil pipe and a filter. The compressor is connected to a return oil pipe, which is connected to the oil tank.

[0007] The coil faces the motor's cooling fan.

[0008] The lubricating oil in the oil tank is pumped into the heat exchanger through the first oil pipe. After initial heat exchange in the heat exchanger, the lubricating oil re-enters the coil. The cooling fan of the motor performs secondary heat exchange on the coil, further reducing the temperature of the lubricating oil passing through the coil. Then, the lubricating oil is filtered and enters the compressor to cool and lubricate the corresponding components of the compressor. Through the two heat exchanges of the heat exchanger and the coil, the temperature of the lubricating oil entering the compressor can be effectively reduced, thereby ensuring good lubrication and cooling effect of the compressor, ensuring the normal operation of the compressor, and also effectively utilizing the excess air energy of the fan to improve energy efficiency.

[0009] The present invention is further configured such that: the coil is fixed inside the air duct, and the air duct is inserted into the outer casing of the motor tail. When the motor is working, the cooling air flows through the coil, the motor cooling fan, and the motor body. By setting up the air duct, the cooling air can be gathered and guided, allowing more effective air to pass through the coil, thereby improving the heat exchange effect.

[0010] This invention is further characterized by having a grid at the end of the air duct furthest from the motor. The grid filters the cooling air entering the air duct, preventing large impurities from entering and providing safety by preventing workers from accidentally touching the coil and getting burned.

[0011] The present invention is further configured such that: a boss is formed in the middle of the air duct, and a bolt hole is formed on the boss. A screw is fitted into the bolt hole and screwed into the housing at the tail of the motor, thereby fixing the position of the air duct and indirectly fixing the coil.

[0012] The present invention is further configured such that the heat exchanger is a shell-and-tube heat exchanger, which can improve the heat exchange effect.

[0013] The present invention is further configured such that the filter is a dual filter, which can improve the filtration effect.

[0014] The outstanding effect of this utility model is:

[0015] Compared with existing technologies, an additional coil is added before the compressor after the lubricating oil passes through the heat exchanger. The coil is located at the tail of the motor cooling fan, using the residual airflow of the motor cooling fan to cool the lubricating oil a second time, thereby reducing the temperature of the lubricating oil and improving the utilization of airflow energy during the operation of the motor cooling fan.

[0016] By increasing equipment investment and utilizing the system's existing energy to solve existing system problems, the overall energy utilization of the equipment can be improved and energy consumption reduced. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model (the arrows in the diagram indicate the flow direction of the lubricating oil);

[0018] Figure 2 This is a schematic diagram of the assembly of the coil and air duct of this utility model;

[0019] Figure 3 for Figure 2 Other side views of the figure shown;

[0020] Figure 4 A comparison diagram of the lubricating oil flow process in the prior art and the lubricating oil flow process of this utility model.

[0021] Attached reference numerals: 1. Oil tank; 2. Compressor; 3. Motor; 4. Heat exchanger; 5. Oil pump; 6. Coil; 7. Oil return pipe; 8. Filter; 9. Air duct; 91. Grille; 92. Boss; 93. Bolt hole. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0023] The following is for reference Figures 1 to 4 The present invention will be described as follows:

[0024] A combined cooling system for a compressor oil station includes an oil tank 1, a compressor 2 fixed to the oil tank 1, a motor 3, a heat exchanger 4, and an oil pump 5. The oil inlet section of the heat exchanger 4 is connected to the oil tank 1 via a first oil pipe and the compressor 2. The water inlet and outlet of the heat exchanger 4 are connected to a cooling circulation system. The oil outlet of the heat exchanger 4 is connected to one end of a coil 6 via a second oil pipe. The other end of the coil 6 is connected to the compressor 2 via a third oil pipe and a filter 8. The compressor 2 is connected to a return oil pipe 7, which is connected to the oil tank 1. The heat exchanger 4 is a shell-and-tube heat exchanger, which can improve the heat exchange effect. The filter 8 is a dual filter, which can improve the filtration effect. The coil 6 faces the cooling fan of the motor 3.

[0025] The lubricating oil in the oil tank is pumped into the heat exchanger 4 through the first oil pipe. After initial heat exchange in the heat exchanger, the lubricating oil re-enters the coil. The cooling fan of the motor performs secondary heat exchange on the coil, further reducing the temperature of the lubricating oil passing through the coil. Then, the lubricating oil is filtered by the filter 8 and enters the compressor to cool and lubricate the corresponding components of the compressor. Through two heat exchange processes—the heat exchanger and the coil—the temperature of the lubricating oil entering the compressor can be effectively reduced, thereby ensuring good lubrication and cooling effect of the compressor, ensuring normal operation of the compressor, and also effectively utilizing the excess air energy of the fan to improve energy efficiency.

[0026] like Figure 2As shown, the coil 6 is fixed inside the air duct 9, which is inserted into the outer casing of the motor 3. When the motor 3 is working, the cooling air flows through the coil, the motor cooling fan, and the motor body. By setting up the air duct, the cooling air can be gathered and guided, allowing more effective air to pass through the coil, thereby improving the heat exchange effect.

[0027] The air duct 9 has a boss 92 formed in the middle, and a bolt hole 93 is formed on the boss 92. A screw is fitted into the bolt hole and screwed into the housing at the tail of the motor 3, thereby fixing the position of the air duct and indirectly fixing the coil.

[0028] like Figure 3 As shown, a grid 91 is provided at the end of the air duct 9 away from the motor 3. By setting the grid, the cooling air entering the air duct 9 can be filtered, thereby preventing large impurities from entering the air duct and also playing a safety role in preventing workers from accidentally touching the coil and getting burned.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A combined cooling system for a compressor oil station, comprising an oil tank (1), a compressor (2) fixed to the oil tank (1), a motor (3), a heat exchanger (4), and an oil pump (5), characterized in that: The oil outlet of the heat exchanger (4) is connected to one end of the coil (6) through the second oil pipe, and the other end of the coil (6) is connected to the compressor (2) through the third oil pipe and the filter (8); the coil (6) faces the cooling fan of the motor (3).

2. The combined cooling system for a compressor oil station according to claim 1, characterized in that: The coil (6) is fixed inside the air duct (9), and the air duct (9) is inserted into the housing of the motor (3) at the tail.

3. The combined cooling system for a compressor oil station according to claim 2, characterized in that: The end of the air duct (9) away from the motor (3) is provided with a grid (91).

4. The combined cooling system for a compressor oil station according to claim 2, characterized in that: The middle part of the air duct (9) is formed with a boss (92), and bolt holes (93) are formed on the boss (92).

5. The combined cooling system for a compressor oil station according to claim 1, characterized in that: The heat exchanger (4) is a shell-and-tube heat exchanger.

6. The combined cooling system for a compressor oil station according to claim 1, characterized in that: The filter (8) is a dual filter.

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