Oil way structure of coal mill oil station

Abstract

The utility model relates to the technical field of coal mills, in particular to a coal mill oil station oil way structure which comprises an oil tank body, a first oil discharging pipeline is arranged on the top face of the oil tank body, and a second oil discharging pipeline is arranged on the upper surface of the oil tank body. The first oil pump outlet oil discharge regulating valve body is installed on the outer surface of a first oil discharge pipeline, and a first oil pump body is arranged on one side of the surface of the first oil discharge pipeline. By improving the design of the oil discharge regulating valve and adding the exhaust regulating valve, each oil pump can independently regulate the oil pressure of the outlet of the oil pump through the oil discharge regulating valve without interfering with each other, and meanwhile, the exhaust regulating valve is added behind the pressure filter screen to regulate the oil return flow behind the filter screen, so that the lubricating oil flow of the oil system is adjustable; the problems are well solved, the operation reliability of the oil system of the coal mill oil station is effectively improved, and the system can be popularized and used.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mills, in particular to an oil circuit structure of an oil station for a coal mill. Background Art

[0002] The coal mill is one of the core equipment of a power plant. It is responsible for grinding coal into powder and then transporting it to the power generation equipment through the air conveying system. Lubricating oil is used for lubrication and cooling inside the coal mill to ensure stable operation of the equipment.

[0003] The oil unloading valve of the crude oil tank of the oil system of the coal mill oil station is designed on the confluent pipeline after the check valves at the outlets of the two oil pumps. In actual use, the output of the two oil pumps cannot be guaranteed to be completely consistent. By using a common oil unloading valve to adjust the oil pressure at the outlet of the oil pumps, there is a phenomenon that the oil pressure of one oil pump is too high and the oil pressure of the other oil pump is too low. When the oil pressure is too low, it will cause the coal mill to trip. When the oil pressure is too high, it will cause oil leakage in the oil system, which is not conducive to the reliable operation of the coal mill. Therefore, it has become an urgent problem to be solved to improve and perfect the above-mentioned problems. Utility Model Content

[0004] The utility model aims to provide an oil circuit structure of a coal mill oil station to solve the problem that the outputs of the two oil pumps mentioned in the above background technology cannot be guaranteed to be completely consistent, and the oil pressure at the outlet of the oil pumps is adjusted by sharing an oil unloading valve, so that there is a phenomenon that the oil pressure of one oil pump is too high and the oil pressure of the other oil pump is too low. When the oil pressure is too low, it will cause the coal mill to trip, and when the oil pressure is too high, it will cause oil leakage in the oil system, which is not conducive to the reliable operation of the coal mill.

[0005] To achieve the above object, the utility model provides the following technical solutions: an oil circuit structure of a coal mill oil station, comprising an oil tank body, a first oil unloading pipeline is arranged on the top surface of the oil tank body, and a second oil unloading pipeline is arranged on the upper surface of the oil tank body;

[0006] The first oil pump outlet oil unloading regulating valve body is installed on the outer surface of the first oil unloading pipeline, the first oil pump body is arranged on one side of the surface of the first oil unloading pipeline, the second oil pump outlet oil unloading regulating valve body is arranged on the outer surface of the second oil unloading pipeline, and the second oil pump body is arranged on one side of the surface of the second oil unloading pipeline.

[0007] Preferably, an exhaust pipe is provided on the upper surface of the first oil unloading pipeline, and a pressure filter outlet is provided on the right side surface of the exhaust pipe.

[0008] Preferably, a first exhaust regulating valve and a second exhaust regulating valve are sequentially arranged on the lower surface of the exhaust pipe from left to right, and the first exhaust regulating valve and the second exhaust regulating valve are both connected to the exhaust pipe.

[0009] Preferably, a first connection end is provided at the left end of the exhaust duct, and a second connection end is provided at the right end of the exhaust duct.

[0010] Preferably, a mounting seat is provided on the upper surface of the exhaust duct, and an exhaust pipe is provided inside the mounting seat.

[0011] Preferably, a stabilizing ring is provided on the inner side wall of the exhaust pipe, and a buffer seat is provided inside the stabilizing ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The oil circuit structure of the coal mill oil station includes an oil tank body, a first oil unloading pipeline, a second oil unloading pipeline, a first oil pump body, a second oil pump body, a first oil pump outlet oil unloading regulating valve body, a second oil pump outlet oil unloading regulating valve body, a first exhaust regulating valve, a second exhaust regulating valve and an exhaust pipe. When in use, a first oil unloading pipeline and a second oil unloading pipeline leading to the oil tank body are respectively added at the outlet of the first oil pump body and the second oil pump body and before the check valve, and regulating valves are arranged. By controlling the oil unloading amount at the oil pump outlet, the oil pressure and lubricating oil flow rate at the oil pump outlet can be linearly controlled. The cleverness of this design lies in that each oil pump can individually adjust its own oil pump outlet oil pressure and lubricating oil flow rate, and the complementary interference can ensure that the output of two oil pumps with different outputs is properly matched after proper oil unloading, and ensure that the oil pumps do not have oil leakage during the switching process. In order to solve the problem of sudden drop in oil pressure or sudden rise in oil pressure, the first exhaust regulating valve and the second exhaust regulating valve are installed on the outer surface of the exhaust pipe, which can linearly adjust the exhaust flow after the pressure filter and secondly adjust the oil pressure and lubricating oil flow at the oil pump outlet. After the oil pump has been used for a long time and its output has decreased, this design can control the exhaust oil return volume after the pressure filter to ensure that the oil pressure and lubricating oil flow at the oil pump outlet meet the operation requirements of the coal mill. By improving the design of the oil unloading regulating valve and adding an exhaust regulating valve, it can be ensured that each oil pump can independently adjust the oil pressure at the oil pump outlet through the oil unloading regulating valve without interfering with each other. At the same time, by adding an exhaust regulating valve after the pressure filter to adjust the return oil flow after the pressure filter, the lubricating oil flow of the oil system can be adjusted, which solves the problems of low output of the oil pump of the coal mill oil station and sudden rise or drop in oil pressure during the oil pump switching process, effectively improves the operation reliability of the oil system of the coal mill oil station, and can be promoted for use.

[0014] 2. The oil circuit structure of the coal mill oil station is provided with a first connecting end, a second connecting end, a mounting seat, an exhaust pipe, a stabilizing ring and a buffer seat. When in use, the mounting seat is first installed on the top surface of the exhaust pipe so that the exhaust pipe can be stably installed and removed from the inside of the mounting seat, and then the exhaust is discharged through the exhaust pipe. The exhaust is carried out simultaneously through three groups of exhaust pipes, and the overall exhaust effect is good. Subsequently, the gas can be buffered by the design of the stabilizing ring and the buffer seat, so that the gas can be discharged evenly, which reflects the functionality of the design. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a three-dimensional schematic diagram of the oil tank body and the first oil unloading pipeline structure of the utility model;

[0017] Figure 3 It is a three-dimensional schematic diagram of the exhaust pipe structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the disassembly of the exhaust pipe and the stabilizing ring structure of the utility model.

[0019] In the figure: 1. Oil tank body; 2. First oil unloading pipeline; 3. Second oil unloading pipeline; 4. First oil pump body; 5. Second oil pump body; 6. First oil pump outlet oil unloading regulating valve body; 7. Second oil pump outlet oil unloading regulating valve body; 8. First exhaust regulating valve; 9. Second exhaust regulating valve; 10. Exhaust pipe; 11. Pressure filter outlet; 12. First connecting end; 13. Second connecting end; 14. Mounting seat; 15. Exhaust pipe; 16. Stabilizing ring; 17. Buffer seat. DETAILED DESCRIPTION

[0020] 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 without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 , an embodiment provided by the utility model:

[0022] A coal mill oil station oil circuit structure, the oil tank body 1, the first oil unloading pipeline 2, the first oil pump body 4, the second oil pump body 5, the first oil pump outlet oil unloading regulating valve body 6, the second oil pump outlet oil unloading regulating valve body 7, the first exhaust regulating valve 8 and the second exhaust regulating valve 9 used in the present application are all products that can be directly purchased on the market, and their principles and connection methods are all existing technologies well known to those skilled in the art, so they will not be repeated here, including an oil tank body 1, the top surface of the oil tank body 1 is provided with a first oil unloading pipeline 2, and the upper surface of the oil tank body 1 is provided with a second oil unloading pipeline 3;

[0023] The first oil pump outlet oil unloading regulating valve body 6 is installed on the outer surface of the first oil unloading pipeline 2. The first oil pump body 4 is arranged on one side of the surface of the first oil unloading pipeline 2. The second oil pump outlet oil unloading regulating valve body 7 is arranged on the outer surface of the second oil unloading pipeline 3. The second oil pump body 5 is arranged on one side of the surface of the second oil unloading pipeline 3. The upper surface of the first oil unloading pipeline 2 is provided with an exhaust pipe 10. The right side surface of the exhaust pipe 10 is provided with a pressure filter outlet 11. The lower surface of the exhaust pipe 10 is provided with a first exhaust regulating valve 8 and a second row of The first exhaust regulating valve 9, the first exhaust regulating valve 8 and the second exhaust regulating valve 9 are connected to the exhaust pipe 10, the left end of the exhaust pipe 10 is provided with a first connecting end 12, the right end of the exhaust pipe 10 is provided with a second connecting end 13, the upper surface of the exhaust pipe 10 is provided with a mounting seat 14, the interior of the mounting seat 14 is provided with an exhaust cylinder 15, the inner side wall of the exhaust cylinder 15 is provided with a stabilizing ring 16, and the interior of the stabilizing ring 16 is provided with a buffer seat 17, and a first oil unloading pipeline 2 and a first oil unloading pipeline 2 leading to the oil tank body 1 are respectively added at the outlet of the first oil pump body 4 and the second oil pump body 5 and before the check valve. The second oil unloading pipeline 3 is provided with a regulating valve, and the oil pressure and lubricating oil flow rate of the oil pump outlet can be linearly controlled by controlling the oil unloading amount at the oil pump outlet. The cleverness of this design lies in that each oil pump can individually adjust its own oil pump outlet oil pressure and lubricating oil flow rate, and complementary interference can ensure that the output of two oil pumps with different outputs is properly matched after proper oil unloading, and ensure that there is no sudden drop or rise in oil pressure during the switching process of the oil pump. The first exhaust regulating valve 8 and the second exhaust regulating valve 9 are two exhaust pipelines returning to the oil tank after the filter. By setting the first exhaust regulating valve 8 and the second exhaust regulating valve 9 on the exhaust pipe 10, The second exhaust regulating valve 9 can linearly adjust the exhaust flow after the pressure filter and secondarily adjust the oil pressure and lubricating oil flow at the oil pump outlet. After the oil pump output decreases after long-term use, this design can control the exhaust oil return volume after the pressure filter. By installing the mounting seat 14 on the top surface of the exhaust pipe 10, the exhaust pipe 15 can be stably installed and removed from the inside of the mounting seat 14, and then the exhaust is carried out through the exhaust pipe 15. The exhaust is carried out simultaneously by three groups of exhaust pipes 15, and the overall exhaust effect is better. Subsequently, the gas can be buffered by the design of the stabilizing ring 16 and the buffer seat 17, so that the gas can be discharged evenly.

[0024] Working principle: When the staff uses this device, first connect the device to an external power supply to provide power support for the device. At the outlet of the first oil pump body 4 and the second oil pump body 5 and before the check valve, a first oil unloading pipeline 2 and a second oil unloading pipeline 3 leading to the oil tank body 1 are respectively added and a regulating valve is set. By controlling the oil unloading amount at the oil pump outlet, the oil pressure and lubricating oil flow rate at the oil pump outlet can be linearly controlled. The first exhaust regulating valve 8 and the second exhaust regulating valve 9 are installed on the outer surface of the exhaust pipeline, which can linearly adjust the exhaust flow rate after the pressure filter and secondary adjust the oil pressure and lubricating oil flow rate at the oil pump outlet. After the output of the oil pump decreases after long-term use, this design can control the exhaust oil return amount after the pressure filter. By installing the mounting seat 14 on the top surface of the exhaust pipe 10, the exhaust pipe 15 can be stably installed and removed from the inside of the mounting seat 14, and then the exhaust is carried out through the exhaust pipe 15. The exhaust is carried out simultaneously through three groups of exhaust pipes 15, and the overall exhaust effect is good. Subsequently, the gas can be buffered by the design of the stabilizing ring 16 and the buffer seat 17. The above is all the working principles of the utility model.

[0025] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. An oil circuit structure of a coal mill oil station, comprising an oil tank body (1), characterized in that: A first oil unloading pipeline (2) is arranged on the top surface of the oil tank body (1), and a second oil unloading pipeline (3) is arranged on the upper surface of the oil tank body (1); A first oil pump outlet oil unloading regulating valve body (6), the first oil pump outlet oil unloading regulating valve body (6) is installed on the outer surface of a first oil unloading pipeline (2), a first oil pump body (4) is arranged on one side of the surface of the first oil unloading pipeline (2), a second oil pump outlet oil unloading regulating valve body (7) is arranged on the outer surface of the second oil unloading pipeline (3), and a second oil pump body (5) is arranged on one side of the surface of the second oil unloading pipeline (3).

2. The oil circuit structure of a coal mill oil station according to claim 1, characterized in that: An exhaust pipe (10) is provided on the upper surface of the first oil unloading pipeline (2), and a pressure filter outlet (11) is provided on the right side surface of the exhaust pipe (10).

3. The oil circuit structure of a coal mill oil station according to claim 2, characterized in that: A first exhaust regulating valve (8) and a second exhaust regulating valve (9) are arranged in sequence from left to right on the lower surface of the exhaust pipe (10); the first exhaust regulating valve (8) and the second exhaust regulating valve (9) are both connected to the exhaust pipe (10).

4. The oil circuit structure of a coal mill oil station according to claim 2, characterized in that: The left end of the exhaust duct (10) is provided with a first connection end (12), and the right end of the exhaust duct (10) is provided with a second connection end (13).

5. The oil circuit structure of a coal mill oil station according to claim 2, characterized in that: A mounting seat (14) is provided on the upper surface of the exhaust pipe (10), and an exhaust pipe (15) is provided inside the mounting seat (14).

6. The oil circuit structure of a coal mill oil station according to claim 5, characterized in that: The inner side wall of the exhaust pipe (15) is provided with a stabilizing ring (16), and a buffer seat (17) is provided inside the stabilizing ring (16).

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