Bearing lubricating oil filtering and cooling system for dry quenching circulating fan

Abstract

The utility model discloses a bearing lubricating oil filtering and cooling system for a dry quenching circulating fan, which comprises an external lubricating oil tank, a circulating oil outlet pipe and a circulating oil return pipe are arranged on the external lubricating oil tank, and the circulating oil return pipe is communicated with an oil outlet of a bearing lubricating oil tank of the circulating fan. The circulating oil outlet pipe is communicated with an oil injection port of the circulating fan bearing lubricating oil tank, and a lubricating oil circulating oil pump is further fixedly arranged in the middle of the circulating oil outlet pipe; a filtering and cooling oil outlet pipe and a filtering and cooling oil return pipe are further arranged on the external lubricating oil tank, and an oil filter, a refrigerating unit and a cooling circulating pump are sequentially connected between the filtering and cooling oil outlet pipe and the filtering and cooling oil return pipe; the problems that in the operation process of the dry quenching circulating fan, temperature rise of a bearing and lubricating oil in the lubricating oil tank influences normal operation of the circulating fan, and the lubricating oil can only be supplemented to the lubricating oil tank in a manual oil supplementing mode are solved.

Description

Technical Field

[0001] The utility model relates to a bearing lubricating oil filter cooling system, in particular to a bearing lubricating oil filter cooling system for a dry coke quenching circulating fan. Background Art

[0002] In the field of coking dry quenching, a circulating fan is needed to blow the cooled inert gas into the dry quenching furnace to reduce the temperature of the red coke. The bearings of the dry quenching circulating fan are generally lubricated by oil injection, while the lubricating oil tank of the dry quenching circulating fan does not have a circulation function. During the operation of the fan, due to the influence of operating friction and working environment, the oil temperature in the lubricating oil tank of the circulating fan gradually increases, resulting in high bearing temperature and frequent oil temperature alarms, which greatly affects the lubrication effect and service life of the bearing. The commonly used method is to set an axial flow fan next to the circulating fan, and drive the surrounding air flow to dissipate heat through the fan to achieve the purpose of reducing the temperature of the bearing and the lubricating oil tank, so as to maintain the normal operation of the circulating fan. The problem with the above method is that the heat dissipation effect is not obvious, and it cannot effectively solve the problem of increased bearing and oil tank temperature. And when the oil level in the lubricating oil tank of the dry quenching circulating fan is lower than the lower limit through the oil level meter, it can only be solved by manual oil replenishment. Summary of the invention

[0003] The utility model provides a bearing lubricating oil filter cooling system for a dry coke quenching circulating fan, which solves the problem that the temperature of the bearings and the lubricating oil in the lubricating oil tank rises during the operation of the dry coke quenching circulating fan, affecting the normal operation of the circulating fan, and the lubricating oil tank can only be replenished with lubricating oil by manual oil replenishment.

[0004] The utility model solves the above technical problems through the following technical solutions: a bearing lubricating oil filter cooling system for a dry quenching circulating fan, comprising: an external lubricating oil tank, a circulating oil outlet pipe and a circulating oil return pipe are arranged on the external lubricating oil tank, the circulating oil return pipe is connected with the oil drain port of the lubricating oil tank of the circulating fan bearing, the circulating oil outlet pipe is connected with the oil filling port of the lubricating oil tank of the circulating fan bearing, and a lubricating oil circulating oil pump is fixedly arranged at the middle position of the circulating oil outlet pipe; a filtering and cooling oil outlet pipe and a filtering and cooling oil return pipe are also arranged on the external lubricating oil tank, and an oil filter, a refrigeration unit and a cooling circulating pump are connected in sequence between the filtering and cooling oil outlet pipe and the filtering and cooling oil return pipe; a cooling system temperature sensor is also arranged between the filtering and cooling oil outlet pipe and the external lubricating oil tank, and a cooling system temperature sensor is also arranged; a circulating system temperature sensor is also arranged at the middle position of the circulating oil outlet pipe; the cooling system temperature sensor and the circulating system temperature sensor are connected to a control system.

[0005] Furthermore, the entire system is installed in the packaging skid to form a whole, which facilitates the movement of the system.

[0006] Furthermore, two or more groups of lubricating oil circulation pumps are provided to speed up the circulation speed of the system lubricating oil.

[0007] The utility model realizes the oil circulation flow between the lubricating oil tank of the bearing of the circulating fan and the external lubricating oil tank through the lubricating oil circulation pump. When the oil temperature signal measured by the temperature sensor of the circulation system is higher than the predetermined temperature, the control system starts the cooling circulation pump to pump the hot oil in the external lubricating oil tank to the refrigeration unit through the oil filter, and then pumps it back to the external lubricating oil tank through the filtering and cooling oil return pipe, so as to realize the purpose of cooling the lubricating oil in the external lubricating oil tank. When the temperature signal measured by the temperature sensor of the cooling circulation system is lower than the predetermined temperature, the control system stops the cooling circulation pump, and the lubricating oil circulation pump continues to work to replace the hot oil in the lubricating oil tank of the bearing of the circulating fan, so as to realize the purpose of cooling the lubricating oil in the lubricating oil tank of the bearing of the circulating fan, and at the same time, the lubricating oil in the lubricating oil tank of the bearing of the circulating fan can be automatically replenished, so as to ensure the normal and stable operation of the dry quenching circulating fan. At the same time, the system also filters the lubricating oil in the lubricating oil tank of the bearing of the circulating fan and the external lubricating oil tank, further reducing the influence of impurities in the lubricating oil on the bearing life. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the overall structure of the utility model; DETAILED DESCRIPTION

[0009] The present invention is described in detail below in conjunction with the accompanying drawings:

[0010] A bearing lubricating oil filtering and cooling system for a dry quenching circulating fan comprises: an external lubricating oil tank 4, on which a circulating oil outlet pipe 5 and a circulating oil return pipe 6 are arranged, the circulating oil return pipe 6 is connected to an oil drain port 3 of a circulating fan bearing lubricating oil tank 1, the circulating oil outlet pipe 5 is connected to an oil filling port 2 of a circulating fan bearing lubricating oil tank 1, and a lubricating oil circulating oil pump 12 is fixedly arranged in the middle position of the circulating oil outlet pipe 5; a filtering and cooling device is also arranged on the external lubricating oil tank 4. The oil outlet pipe 7, the filtering and cooling oil return pipe 11, and the oil filter 8, the refrigeration unit 9, and the cooling circulation pump 10 are connected in sequence between the filtering and cooling oil outlet pipe 7 and the filtering and cooling oil return pipe 11; a cooling system temperature sensor 13 is also arranged between the filtering and cooling oil outlet pipe 7 and the external lubricating oil tank 4; a circulating system temperature sensor 15 is also arranged in the middle position of the circulating oil outlet pipe 5; the cooling system temperature sensor 13 and the circulating system temperature sensor 15 are connected to the control system 14.

[0011] Furthermore, the entire system is installed in the packaging skid 16 to form a whole, which facilitates the movement of the system.

[0012] Furthermore, two or more lubricating oil circulation pumps 12 are provided to speed up the circulation speed of the system lubricating oil.

[0013] The utility model realizes the circulation of lubricating oil in the lubricating oil tank 1 of the circulating fan bearing and the external lubricating oil tank 4 through the lubricating oil circulation pump 12. When the oil temperature signal measured by the circulation system temperature sensor 15 is higher than the predetermined temperature, the control system 14 starts the cooling circulation pump 10, pumps the hot oil in the external lubricating oil tank 4 to the refrigeration unit 9 through the oil filter 8, and then pumps it back to the external lubricating oil tank 4 through the filtering and cooling oil return pipe 11, so as to achieve the purpose of cooling the lubricating oil in the external lubricating oil tank 4. When the temperature signal measured by the cooling circulation system temperature sensor 13 is higher than the predetermined temperature, the control system 14 starts the cooling circulation pump 10, pumps the hot oil in the external lubricating oil tank 4 to the refrigeration unit 9 through the oil filter 8, and then pumps it back to the external lubricating oil tank 4 through the filtering and cooling oil return pipe 11, so as to achieve the purpose of cooling the lubricating oil in the external lubricating oil tank 4. When the temperature is lower than the predetermined temperature, the control system 14 stops the cooling circulation pump 10, and the lubricating oil circulation pump 12 continues to work to replace the hot oil in the circulating fan bearing lubricating oil tank 1, thereby achieving the purpose of cooling the lubricating oil in the circulating fan bearing lubricating oil tank 1, and at the same time, it can also automatically replenish the lubricating oil in the circulating fan bearing lubricating oil tank 1, ensuring the normal and stable operation of the CDQ circulating fan. At the same time, the system also filters the lubricating oil in the circulating fan bearing lubricating oil tank 1 and the external lubricating oil tank 4, further reducing the impact of impurities in the lubricating oil on the bearing life.

Claims

1. A bearing lubricating oil filter cooling system for a dry quenching circulating fan, comprising: The external lubricating oil tank (4) is characterized in that: a circulating oil outlet pipe (5) and a circulating oil return pipe (6) are arranged on the external lubricating oil tank (4); the circulating oil return pipe (6) is connected to the oil drain port (3) of the circulating fan bearing lubricating oil tank (1); the circulating oil outlet pipe (5) is connected to the oil filling port (2) of the circulating fan bearing lubricating oil tank (1); a lubricating oil circulating oil pump (12) is fixedly arranged at the middle position of the circulating oil outlet pipe (5); a filtering and cooling oil outlet pipe (7) and a filtering and cooling oil return pipe (11) are also arranged on the external lubricating oil tank (4); an oil filter (8), a refrigeration unit (9) and a cooling circulating pump (10) are connected in sequence between the filtering and cooling oil outlet pipe (7) and the filtering and cooling oil return pipe (11).

2. The bearing lubricating oil filter cooling system for a dry coke quenching circulating fan according to claim 1, characterized in that: A cooling system temperature sensor (13) is provided between the filtering and cooling oil outlet pipe (7) and the external lubricating oil tank (4); a circulating system temperature sensor (15) is provided at a middle position of the circulating oil outlet pipe (5); the cooling system temperature sensor (13) and the circulating system temperature sensor (15) are connected to a control system (14).

3. A bearing lubricating oil filter cooling system for a dry coke quenching circulating fan according to claim 1 or 2, characterized in that: The entire system is installed in the packaging skid (16) to form a whole.

4. A bearing lubricating oil filter cooling system for a CDQ circulating fan according to claim 3, characterized in that: More than two groups of lubricating oil circulation pumps (12) are provided.

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