EN oil system

Abstract

The utility model provides an EN oil system which relates to the technical field of steam turbines and comprises a circulating pump, a main pipeline and an oil tank, the main pipeline is connected to the output end of the circulating pump, the output end of the main pipeline is connected with the oil tank, and the main pipeline is provided with a regeneration device and a first valve. A branch pipeline is connected to the position, at the output end of the circulating pump, of the main pipeline, the output end of the branch pipeline is connected with an oil tank, two sets of branch pipes are connected to the branch pipeline, and oil coolers are arranged on the two sets of branch pipes. According to the utility model, uninterrupted on-line oil filtering is convenient, the oil purification effect is effectively achieved, the possibility of oil leakage caused by improper oil filtering operation of the oil filter and the possibility of personal injury caused by moving the oil filter are reduced, the safe operation of a unit adjusting system is effectively ensured, multiple functions can be switched according to requirements, all functions can be closed, and the operation is simple and convenient. Maintenance is carried out on the premise that an oil way is smooth, installation is easy, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of steam turbine technology, and in particular to an EN oil system. Background Technology

[0002] EH oil, short for high-pressure fire-resistant and explosion-proof oil, is a high-performance oil specifically designed for driving turbine control valves. The EH oil system, also known as the turbine speed regulating oil system, is primarily composed of phosphate esters and possesses fire-resistant, wear-resistant, and stable properties. The EH oil system plays a crucial role in turbines, mainly driving the turbine control valves to ensure precise control and operation. The EH oil system consists of the following parts: Oil supply system: provides high-pressure fire-resistant oil to drive servo actuators and maintain the physical, chemical, and operational characteristics of the hydraulic oil; Actuators: respond to electrical command signals and adjust the opening of various steam control valves in the turbine; Emergency shutdown system: closes the turbine inlet valve or speed regulating valve when parameters exceed operating limits to ensure safety. An EH oil regeneration device is required in the oil supply system.

[0003] The EH oil regeneration unit is a device used to store adsorbent for the regeneration of fire-resistant oil. Its main function is to maintain the oil neutrality and remove impurities such as water. This unit is essentially a precision oil filter assembly, primarily composed of a diatomaceous earth filter and a corrugated fiber filter connected in series. It is connected to a high-pressure oil manifold via a pipe with throttling holes. The diatomaceous earth filter can be bypassed, allowing the oil to pass only through the corrugated fiber filter. Each filter is equipped with a pressure gauge; when an abnormal pressure value is indicated, the filter needs maintenance. The diatomaceous earth filter mainly removes particulate matter and impurities from the oil, while the corrugated fiber filter further purifies the oil, ensuring its cleanliness and performance. Through this series structure, the EH oil regeneration device can efficiently process fire-resistant oil, extend its service life, and maintain the stability of the oil. Currently, there is only one EH oil regeneration device in the EH oil system. Due to its limited function, it cannot meet the requirements of EH oil quality during operation. It is necessary to use an oil filter (filtered every once in a while, and disassembled and towed away after use) to manually filter EH oil to ensure the oil quality requirements of operation. However, the existing oil filtration methods have the problems of personal danger when moving the oil filter, oil leakage due to improper filtration operation, and the use of a large number of people, which may lead to crushing, crushing, and electric shock accidents. Therefore, this utility model proposes an EN oil system to solve the problems existing in the prior art. Utility Model Content

[0004] To address the aforementioned issues, this invention proposes an EN oil system that can continuously, efficiently, and safely filter EH oil, effectively ensuring the safe operation of the unit.

[0005] The utility model discloses an EN oil system, including circulating pump, main pipeline and oil tank, the main pipeline is connected at the output of circulating pump, and the output of main pipeline is connected with oil tank, be equipped with regenerative device and first valve on the main pipeline, be equipped with branch pipeline on the main pipeline of circulating pump output position, and the output of branch pipeline is connected oil tank, be equipped with branch pipe on the branch pipeline, and branch pipe is equipped with two groups, all be equipped with cold oiler on two groups branch pipe, and all be equipped with second valve on the branch pipe of cold oiler both ends position,

[0006] The both ends of the branch pipeline are connected by a bypass pipe, a third valve is arranged on the bypass pipe, an oil filter pipe is connected between the both ends of the bypass pipe, and an oil filter is arranged on the oil filter pipe, and fourth valves are arranged on the both ends of the oil filter pipe.

[0007] Further improvements are that the oil filter comprises a filter cartridge, an acid reduction cartridge and a dehydration cartridge, the filter cartridge is internally provided with a filter core, the acid reduction cartridge is internally provided with an acid reduction filter core, and the dehydration cartridge is internally provided with a dehydration filter core.

[0008] Further improvements are that the output port of the filter cartridge is connected with the oil filter pipe, and a conduit is connected to the output port of the filter cartridge, the input end and the output end of the acid reduction cartridge are respectively connected with a first inlet pipe and a first outlet pipe, and the input end and the output end of the dehydration cartridge are respectively connected with a second inlet pipe and a second outlet pipe.

[0009] Further improvements are that the first inlet pipe and the conduit are connected by a first flange, the first outlet pipe and the second inlet pipe are connected by a second flange, and the second outlet pipe and the oil filter pipe are connected by a third flange.

[0010] Further improvements are that one end of the first outlet pipe extending into the acid reduction cartridge is provided with a first nut sleeve, the outlet of the acid reduction filter core is threadedly connected with the first nut sleeve, one end of the second outlet pipe extending into the dehydration cartridge is provided with a second nut sleeve, and the outlet of the dehydration filter core is threadedly connected with the second nut sleeve.

[0011] Further improvements are that one side of the filter cartridge is provided with a closure door, the acid reduction cartridge is composed of two acid reduction half cartridges, and the two acid reduction half cartridges are threadedly connected, the dehydration cartridge is composed of two dehydration half cartridges, and the two dehydration half cartridges are threadedly connected.

[0012] Further improvements are that the regenerative device comprises a diatomite oil filter and a corrugated fiber oil filter.

[0013] The utility model discloses an EN oil system, including circulating pump, main pipeline and oil tank, the main pipeline is connected at the output of circulating pump, and the output of main pipeline is connected with oil tank, be equipped with regenerative device and first valve on the main pipeline, be equipped with branch pipeline on the main pipeline of circulating pump output position, and the output of branch pipeline is connected oil tank, be equipped with branch pipe on the branch pipeline, and branch pipe is equipped with two groups, all be equipped with cold oiler on two groups branch pipe, and all be equipped with second valve on the branch pipe of cold oiler both ends position,

[0014] 1. This utility model is based on a circulating pump. A branch pipe is added to the main pipeline, a bypass pipe to the branch pipe, and an oil filter pipe to the bypass pipe. By opening and closing valves, the main pipeline can be connected, and the oil can be treated using a regeneration device. The branch pipes and sub-branch pipes can also be connected, with two sets of oil coolers acting as a backup to cool the oil. The oil filter pipe can be connected to filter impurities, reduce acid value, and remove moisture. Alternatively, the bypass pipe can be directly connected without any treatment. In summary, this allows for convenient and uninterrupted online oil filtration, effectively purifying the oil and reducing the possibility of oil spills or personal injury due to improper operation of the oil filter. It effectively ensures the safe operation of the unit's regulating system. Multiple functions can be switched as needed, and all functions can be turned off. Maintenance can be performed while ensuring unobstructed oil flow. Installation is simple and operation is convenient.

[0015] 2. In this utility model oil filter, the flange connection facilitates the disassembly and disassembly of the filter cylinder, acid reducing cylinder, and dehydration cylinder. The filter cylinder has a closed door that can be opened to maintain the filter element. The acid reducing cylinder and dehydration cylinder can be disassembled into two halves through a threaded connection structure, so that the acid reducing filter element and dehydration filter element can be removed from the nut sleeve, making maintenance and replacement more convenient. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention;

[0017] Figure 2 This is a schematic diagram of the oil filter of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the oil filter of this utility model.

[0019] The components are as follows: 1. Circulating pump; 2. Main pipeline; 3. Oil tank; 4. Regeneration device; 5. First valve; 6. Branch pipeline; 7. Branch pipe; 8. Oil cooler; 9. Second valve; 10. Bypass pipe; 11. Third valve; 12. Oil filter pipe; 13. Oil filter; 14. Fourth valve; 15. Filter cartridge; 16. Acid-reducing cartridge; 17. Dehydration cartridge; 18. Filter element; 19. Acid-reducing filter element; 20. Dehydration filter element; 21. Conduit; 22. First inlet pipe; 23. First outlet pipe; 24. Second inlet pipe; 25. Second outlet pipe; 26. First flange; 27. Second flange; 28. Third flange; 29. ​​First nut sleeve; 30. Second nut sleeve; 31. Sealing door. Detailed Implementation

[0020] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0021] Embodiment One

[0022] According to Figure 1 , 2 , 3, the embodiment provides an EN oil system, which comprises a circulating pump 1, a main pipeline 2 and an oil tank 3, the main pipeline 2 is connected to the output end of the circulating pump 1, and the output end of the main pipeline 2 is connected to the oil tank 3, the main pipeline 2 is provided with a regenerating device 4 and a first valve 5, the main pipeline 2 at the position of the output end of the circulating pump 1 is connected with a branch pipeline 6, and the output end of the branch pipeline 6 is connected to the oil tank 3, the branch pipeline 6 is connected with branch pipes 7, and the branch pipes 7 are provided with two groups, the branch pipes 7 of the two groups are both provided with oil coolers 8, and the branch pipes 7 at the positions of the two ends of the oil coolers 8 are both provided with second valves 9.

[0023] The two ends of the branch pipeline 6 are connected with a bypass pipeline 10, and the bypass pipeline 10 is provided with a third valve 11, the two ends of the bypass pipeline 10 are connected with an oil filter pipeline 12, and the oil filter pipeline 12 is provided with an oil filter 13, and the oil filter pipeline 12 at the positions of the two ends of the oil filter 13 is both provided with fourth valves 14. In use, based on the circulating pump 1, the branch pipeline 6 is additionally arranged on the main pipeline 2, the bypass pipeline 10 is additionally arranged on the branch pipeline 6, and the oil filter pipeline 12 is additionally arranged on the bypass pipeline 10, through the opening and closing of the valves, the main pipeline 2 can be connected, the oil can be treated by the traditional method by using the regenerating device 4, the branch pipeline 6 and the branch pipes 7 can be connected, the oil is cooled and treated by the two groups of oil coolers 8 as standby for each other, the oil filter pipeline 12 can be connected, the oil is filtered and treated by the oil filter 13 to remove impurities, reduce acid value and moisture, the bypass pipeline 10 can also be directly connected without any treatment. In summary, the uninterrupted on-line oil filtering is facilitated, the oil quality purification effect is effectively achieved, the possibility of oil running and personal injury caused by improper oil filtering operation of the oil filter is reduced, the safe operation of the unit regulating system is effectively ensured, the switching of multiple functions can be performed according to needs, all functions can be closed, and maintenance can be performed under the premise of ensuring the smoothness of the oil circuit. The installation is simple, and the operation is convenient.

[0024] The oil filter 13 comprises a filter cartridge 15, an acid-reducing cartridge 16 and a dehydration cartridge 17, the inside of the filter cartridge 15 is provided with a filter element 18, the inside of the acid-reducing cartridge 16 is provided with an acid-reducing filter element 19, and the inside of the dehydration cartridge 17 is provided with a dehydration filter element 20. In use, the oil filter pipeline 12 is connected, and the oil is filtered and treated by the oil filter 13 to remove impurities, reduce acid value and moisture.

[0025] The output port of the filter cartridge 15 is connected with the oil filter pipe 12, and a conduit 21 is connected with the output port of the filter cartridge 15, the input end and the output end of the acid reduction cartridge 16 are connected with a first inlet pipe 22 and a first outlet pipe 23 respectively, and the input end and the output end of the dehydration cartridge 17 are connected with a second inlet pipe 24 and a second outlet pipe 25 respectively. The first inlet pipe 22 and the conduit 21 are connected through a first flange 26, the first outlet pipe 23 and the second inlet pipe 24 are connected through a second flange 27, and the second outlet pipe 25 and the oil filter pipe 12 are connected through a third flange 28. In the oil filter 13, the filter cartridge 15, the acid reduction cartridge 16 and the dehydration cartridge 17 are conveniently disassembled through the connection effect of the flanges.

[0026] The first outlet pipe 23 extends to one end inside the acid reduction cartridge 16, and a first nut sleeve 29 is arranged at the end, the outlet of the acid reduction filter element 19 is threadedly connected with the first nut sleeve 29, the second outlet pipe 25 extends to one end inside the dehydration cartridge 17, and a second nut sleeve 30 is arranged at the end, the outlet of the dehydration filter element 20 is threadedly connected with the second nut sleeve 30. One side of the filter cartridge 15 is provided with a closing door 31, the acid reduction cartridge 16 is composed of two groups of acid reduction half cartridges, and the two groups of acid reduction half cartridges are threadedly connected, the dehydration cartridge 17 is composed of two groups of dehydration half cartridges, and the two groups of dehydration half cartridges are threadedly connected. The filter cartridge 15 can be opened to maintain the filter element 18, the acid reduction cartridge 16 and the dehydration cartridge 17 can be disassembled into two halves through the threaded connection structure of the half cartridges, so that the acid reduction filter element 19 and the dehydration filter element 20 are respectively disassembled from the first nut sleeve 29 and the second nut sleeve 30.

[0027] Embodiment two

[0028] According to Figure 1 、 2 , 3, the embodiment provides an EN oil system, which comprises a circulating pump 1, a main pipeline 2 and an oil tank 3, the main pipeline 2 is connected to the output end of the circulating pump 1, and the output end of the main pipeline 2 is connected with the oil tank 3, the main pipeline 2 is provided with a regenerator 4 and a first valve 5, the main pipeline 2 at the position of the output end of the circulating pump 1 is connected with a branch pipeline 6, and the output end of the branch pipeline 6 is connected with the oil tank 3, the branch pipeline 6 is connected with branch pipes 7, and the branch pipes 7 are provided with two groups, the branch pipes 7 are provided with oil coolers 8 at both ends, and the branch pipes 7 are provided with second valves 9 at both ends.

[0029] The bypass pipe 10 is connected between the two ends of the branch pipe 6, and the third valve 11 is arranged on the bypass pipe 10. The oil filter pipe 12 is connected between the two ends of the bypass pipe 10, and the oil filter 13 is arranged on the oil filter pipe 12. The fourth valve 14 is arranged on the oil filter pipe 12 at the positions of the two ends of the oil filter 13. In use, based on the circulating pump 1, the branch pipe 6 is additionally arranged on the main pipe 2, the bypass pipe 10 is additionally arranged on the branch pipe 6, and the oil filter pipe 12 is additionally arranged on the bypass pipe 10. By opening and closing the valves, the main pipe 2 can be connected, the oil can be treated by the regenerative device 4 in a traditional manner, the branch pipe 6 and the branch pipe 7 can be connected, the oil can be cooled and treated by the two groups of oil coolers 8 as main and standby, the oil filter pipe 12 can be connected, the oil can be filtered and treated by the oil filter 13 to remove impurities, reduce acid value, and remove moisture, the bypass pipe 10 can be directly connected without any treatment. In summary, the oil can be conveniently and continuously filtered online, the oil quality can be effectively purified, the possibility of oil leakage and personal injury caused by improper oil filter operation can be reduced, the safe operation of the unit regulation system can be effectively ensured, multiple functions can be switched according to needs, all functions can be closed, maintenance can be performed under the premise of ensuring smooth oil passage, installation is simple, and operation is convenient.

[0030] The regenerative device 4 includes a diatomite oil filter and a corrugated fiber oil filter. The diatomite oil filter and the corrugated fiber oil filter are connected in series and communicated with the high-pressure oil manifold through a pipeline with a throttle hole. The diatomite filter can bypass according to specific conditions, so that the oil only passes through the corrugated fiber oil filter. A pressure gauge is arranged on each oil filter. When an abnormal pressure value is indicated, it indicates that the oil filter needs to be repaired. The diatomite oil filter is mainly used to remove particulate matter and impurities in the oil, and the corrugated fiber oil filter further purifies the oil to ensure the cleanliness and performance of the oil.

[0031] The EN oil system relies on the circulating pump 1 as the basis, adds the branch pipeline 6 on the main pipeline 2, adds the bypass pipeline 10 on the branch pipeline 6, adds the oil filter pipeline 12 on the bypass pipeline 10, through the opening and closing of the valve, the main pipeline 2 can be connected, the oil is treated by the regenerative device 4, the branch pipeline 6 and branch pipeline 7 can be connected, the oil is cooled and treated by the two sets of oil coolers 8, the oil filter 13 is used to filter the impurities, reduce the acid value and moisture content of the oil, the bypass pipeline 10 can also be directly connected without any treatment, in summary, the oil can be filtered on line continuously, the oil quality is effectively purified, the possibility of oil leakage and personal injury caused by improper operation of the oil filter is reduced, the safe operation of the unit regulating system is effectively ensured, multiple functions can be switched according to needs, all functions can be closed, maintenance can be carried out under the premise of ensuring the smoothness of the oil circuit, the installation is simple, and the operation is convenient. At the same time, in the oil filter 13, the filter cartridge 15, the acid reduction cartridge 16 and the dehydration cartridge 17 are conveniently disassembled through the flange connection, the closed door 31 on the filter cartridge 15 can be opened to maintain the filter element 18, the acid reduction cartridge 16 and the dehydration cartridge 17 can be disassembled into two halves through the threaded connection structure, so that the acid reduction filter element 19 and the dehydration filter element 20 are disassembled from the nut sleeve, and maintenance and replacement are more convenient.

[0032] The basic principle, main features and advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An EN oil system comprising a circulation pump (1), a main line (2) and an oil tank (3), characterized in that: The main pipe (2) is connected at the output end of the circulating pump (1), and the output end of the main pipe (2) is connected with the oil tank (3), the main pipe (2) is provided with a regenerating device (4) and a first valve (5), the main pipe (2) at the output end position of the circulating pump (1) is connected with a branch pipe (6), and the output end of the branch pipe (6) is connected with the oil tank (3), the branch pipe (6) is connected with a branch pipe (7), and the branch pipe (7) is provided with two groups, the branch pipe (7) is provided with a cold oil device (8), and the branch pipe (7) at the two end positions of the cold oil device (8) is provided with a second valve (9). The two ends of the branch pipe (6) are connected with a bypass pipe (10), and the bypass pipe (10) is provided with a third valve (11), the two ends of the bypass pipe (10) are connected with an oil filter pipe (12), and the oil filter pipe (12) is provided with an oil filter (13), and the two ends of the oil filter pipe (12) at the two end positions of the oil filter (13) are provided with a fourth valve (14).

2. An EN oil system according to claim 1, characterized in that: The oil filter (13) comprises a filter cartridge (15), an acid reduction cartridge (16) and a dehydration cartridge (17), the inside of the filter cartridge (15) is provided with a filter core (18), the inside of the acid reduction cartridge (16) is provided with an acid reduction filter core (19), and the inside of the dehydration cartridge (17) is provided with a dehydration filter core (20).

3. An EN oil system according to claim 2, characterized in that: The output port of the filter cartridge (15) is connected with the oil filter pipe (12), and the output port of the filter cartridge (15) is connected with a conduit (21), the input end and the output end of the acid reduction cartridge (16) are respectively connected with a first inlet pipe (22) and a first outlet pipe (23), and the input end and the output end of the dehydration cartridge (17) are respectively connected with a second inlet pipe (24) and a second outlet pipe (25).

4. An EN oil system according to claim 3, characterized in that: The first inlet pipe (22) and the conduit (21) are connected through a first flange (26), the first outlet pipe (23) and the second inlet pipe (24) are connected through a second flange (27), and the second outlet pipe (25) and the oil filter pipe (12) are connected through a third flange (28).

5. An EN oil system according to claim 4, characterized in that: One end of the first outlet pipe (23) extending into the inside of the acid reduction cartridge (16) is provided with a first nut sleeve (29), the outlet of the acid reduction filter core (19) is threadedly connected with the first nut sleeve (29), one end of the second outlet pipe (25) extending into the inside of the dehydration cartridge (17) is provided with a second nut sleeve (30), and the outlet of the dehydration filter core (20) is threadedly connected with the second nut sleeve (30).

6. An EN oil system according to claim 5, characterized in that: One side of the filter cartridge (15) is provided with a closing door (31), the acid reduction cartridge (16) is composed of two acid reduction half cartridges, and the two acid reduction half cartridges are threadedly connected, the dehydration cartridge (17) is composed of two dehydration half cartridges, and the two dehydration half cartridges are threadedly connected.

7. An EN oil system according to claim 1, characterized in that: The regenerating device (4) comprises a diatomite oil filter and a corrugated fiber oil filter.

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