Lubricating oil monitoring and protecting device for generator set

Abstract

The utility model discloses a lubricating oil monitoring and protecting device for a generator set, which relates to the technical field of power generation and comprises a generator set gear shell, a base, a first oil delivery pipe and a second oil delivery pipe. The temperature sensor can monitor the temperature of lubricating oil in the gear shell of the generator set in real time, and when the temperature is too high and reaches a preset threshold value, the temperature switch starts the oil pump so that the lubricating oil can be rapidly cooled through the lubricating oil cooling mechanism. The temperature of the lubricating oil is reduced, so that the situation that mechanical abrasion is aggravated due to the fact that the temperature in a gearbox of the generator set is too high is avoided, automatic detection and protection of the lubricating oil are achieved, and the generator set is made to operate more safely. The cleanliness of the lubricating oil is ensured, so that the lubricating effect of the lubricating oil is better ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of power generation, in particular to a lubricating oil monitoring and protection device for a generator set. Background Art

[0002] Gearboxes are widely used in generator sets and are an important mechanical component. The main function of a gearbox is to transfer the power generated by the rotor under the action of the prime mover to the generator and make it obtain a corresponding speed. Usually, the speed of the rotor is very low, far from the speed required by the generator to generate electricity. It must be achieved through the speed-increasing effect of the gear pair of the gearbox, so the gearbox is also called a speed increaser.

[0003] The gears in the generator set gearbox will produce friction and wear during operation. The use of lubricating oil can form a lubricating film on the gear surface to reduce direct contact between gears, thereby reducing friction and wear. However, the wear of gears during the use of lubricating oil will increase friction and cause the oil temperature to rise. At present, the oil temperature of the existing generator set lubricating oil cannot be automatically monitored and protected, and professionals are required to measure it regularly. This monitoring method is discontinuous and cannot cool the gearbox in time, which can easily shorten the service life of the generator set gearbox. Summary of the invention

[0004] The utility model aims to provide a lubricating oil monitoring and protection device for a generator set to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A generator set lubricating oil monitoring and protection device comprises a generator set gear case, a base, a first oil pipeline and a second oil pipeline, wherein a base is installed at the bottom of the generator set gear case, an oil inlet is opened at the upper portion of the generator set gear case, an oil outlet is opened at the bottom of the generator set gear case, the first oil pipeline and the second oil pipeline are installed on the oil outlet and the oil inlet respectively, a lubricating oil cooling mechanism is installed between the other end of the first oil pipeline and the other end of the second oil pipeline, an oil pump and a lubricating oil filtering mechanism are also installed on the second oil pipeline, the lubricating oil filtering mechanism is installed in front of the oil pump, a temperature sensor is installed at the bottom of the generator set gear case, and a thermostat is installed on the upper portion of the generator set gear case.

[0007] As a further solution of the utility model: the lubricating oil cooling mechanism includes an outer frame, a cooling coil and a fan, the cooling coil is installed in the outer frame, the bottom end of the cooling coil is connected to the first oil pipe, the top end of the cooling coil is connected to the second oil pipe, and the fan is installed on the outer frame directly in front of the cooling coil.

[0008] As a further solution of the utility model: the lubricating oil filtering mechanism includes a shell, an end cover, a filter screen cylinder, screws and a sealing ring, the two ends of the shell are connected to the two sections of the second oil pipeline, a filter screen cylinder is installed inside the shell, and an end cover is installed at the bottom end of the filter screen cylinder, and the end cover is fixed to the bottom port of the shell by screws.

[0009] As a further solution of the utility model: a sealing ring is installed between the end cover and the shell.

[0010] As a further solution of the present invention: the temperature sensor is electrically connected to the thermostat, and the thermostat is electrically connected to the oil pump and the fan.

[0011] As a further solution of the utility model: the first oil pipeline is a transparent tube, and the surface of the first oil pipeline is provided with height scale lines.

[0012] As a further solution of the utility model: an oil filling pipe is installed on the first oil delivery pipe, and a cover body is installed on the pipe mouth of the oil filling pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a lubricating oil cooling mechanism, a thermostat, a temperature sensor and an oil pump. The temperature sensor can monitor the temperature of the lubricating oil in the gear housing of the generator set in real time. When the temperature is too high and reaches a preset threshold, the temperature switch will turn on the oil pump so that the lubricating oil can be quickly cooled through the lubricating oil cooling mechanism, thereby reducing the temperature of the lubricating oil and avoiding excessive temperature in the gear box of the generator set, which may lead to increased mechanical wear. The utility model realizes automatic detection and protection of the lubricating oil, making the operation of the generator set safer and more efficient.

[0015] 2. The utility model is provided with a lubricating oil filtering mechanism, which can filter impurities from the lubricating oil to ensure the cleanliness of the lubricating oil, thereby better ensuring the lubricating effect of the lubricating oil.

[0016] 3. The utility model provides a transparent first oil delivery pipe and a height scale line on the surface of the first oil delivery pipe, so that personnel can check the liquid level of the lubricating oil in the gear housing of the generator set conveniently so as to replenish the lubricating oil in time when the liquid level is too low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the front view structure of a lubricating oil monitoring and protection device for a generator set.

[0018] Figure 2 It is a side sectional view of a lubricating oil monitoring and protection device for a generator set.

[0019] Figure 3 A generator set lubricating oil monitoring and protection device Figure 1 Structural cutaway diagram of the lubricating oil filter mechanism.

[0020] 1. Generator gear housing; 2. Base; 3. Oil inlet; 4. Oil outlet; 5. First oil pipeline; 6. Second oil pipeline; 7. Lubricating oil cooling mechanism; 701. Outer frame; 702. Cooling coil; 703. Fan; 8. Lubricating oil filtering mechanism; 801. Housing; 802. End cover; 803. Filter cylinder; 804. Screw; 805. Sealing ring; 9. Oil pump; 10. Oil filling pipe; 11. Cover; 12. Thermostat; 13. Temperature sensor; 14. Altitude scale line. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-2 In the embodiment of the utility model, a lubricating oil monitoring and protection device for a generator set includes a generator set gear housing 1, a base 2, a first oil pipeline 5 and a second oil pipeline 6. The base 2 is installed at the bottom of the generator set gear housing 1, an oil inlet 3 is opened at the upper part of the generator set gear housing 1, and an oil outlet 4 is opened at the bottom of the generator set gear housing 1. The first oil pipeline 5 and the second oil pipeline 6 are installed on the oil outlet 4 and the oil inlet 3 respectively. A lubricating oil cooling mechanism 7 is installed between the other end of the first oil pipeline 5 and the other end of the second oil pipeline 6. A temperature sensor 13 is installed at the bottom of the generator set gear housing 1. A thermostat 12 is installed on the upper part of the unit gear housing 1. The model of the thermostat 12 is CHB902. The temperature sensor 13 is electrically connected to the thermostat 12. The model of the temperature sensor 13 is PT100. The thermostat 12 is electrically connected to the oil pump 9 and the fan 703. The lubricating oil cooling mechanism 7 includes an outer frame 701, a cooling coil 702 and a fan 703. The cooling coil 702 is installed in the outer frame 701. The bottom end of the cooling coil 702 is connected to the first oil pipeline 5, and the top end of the cooling coil 702 is connected to the second oil pipeline 6. A fan 703 is installed on the outer frame 701 just in front of the cooling coil 702.

[0023] See also Figure 2-3An oil pump 9 and a lubricating oil filtering mechanism 8 are also installed on the second oil delivery pipe 6. The lubricating oil filtering mechanism 8 is installed in front of the oil pump 9. The "front" mentioned here is based on the flow direction of the lubricating oil. The lubricating oil filtering mechanism 8 includes a shell 801, an end cover 802, a filter screen cylinder 803, screws 804 and a sealing ring 805. The two ends of the shell 801 are connected to the two sections of the second oil delivery pipe 6. A filter screen cylinder 803 is installed inside the shell 801. The bottom end of the filter screen cylinder 803 is installed with an end cover 802. The end cover 802 is fixed to the bottom port of the shell 801 by screws 804. A sealing ring 805 is installed between the end cover 802 and the shell 801. The sealing ring 805 can improve the sealing between the end cover 802 and the shell 801 and reduce the probability of oil leakage.

[0024] See also Figure 1-2 The first oil pipeline 5 is a transparent tube, and a height scale line 14 is set on the surface of the first oil pipeline 5. In this way, the designer only needs to observe the height of the liquid level on the first oil pipeline 5 to know the height of the oil in the gear housing 1 of the generator set, which is convenient for the personnel to grasp the liquid level of the lubricating oil in the gear housing 1 of the generator set and replenish it in time when the oil is insufficient.

[0025] See also Figure 2 An oil filling pipe 10 is installed on the first oil delivery pipe 5, and a cover body 11 is installed on the pipe mouth of the oil filling pipe 10. The setting of the oil filling pipe 10 is convenient for personnel to add lubricating liquid to the gear housing 1 of the generator set. The cover body 11 is used to seal the oil filling pipe 10 when not in use to play a dust-proof role.

[0026] The working principle of the utility model is:

[0027] During use, when the temperature sensor 13 detects that the temperature of the lubricating oil is too high, it will feedback to the thermostat 12, and the thermostat 12 will control the oil pump 9 and the fan 703 to turn on. The oil pump 9 extracts the high-temperature lubricating oil at the bottom of the generator set gear housing 1 and transports it to the cooling coil 702 through the first oil pipe 5, and then the cooling coil 702 is dissipated by the fan 703 to cool the lubricating oil in the cooling coil 702. The cooled lubricating oil is then re-transported to the generator set gear housing 1 through the second oil pipe 6. During the lubricating oil transportation process, the lubricating oil filter mechanism 8 installed on the second oil pipe 6 will filter out the oil residue and other impurities in the lubricating oil to ensure the cleanliness of the lubricating oil, so as to better play the lubricating role between the gears. When it is necessary to clean the oil residue and other impurities, the screw 804 on the end cover 802 is unscrewed after the generator set is shut down, and the filter cylinder 803 is taken out from the inside of the shell 801 through the end cover 802, and the oil residue and other impurities in the filter cylinder 803 can be poured out.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A generator set lubricating oil monitoring and protection device, comprising a generator set gear housing (1), a base (2), a first oil pipeline (5) and a second oil pipeline (6), characterized in that: A base (2) is installed at the bottom of the generator set gear housing (1), an oil inlet (3) is opened at the top of the generator set gear housing (1), and an oil outlet (4) is opened at the bottom of the generator set gear housing (1). A first oil pipeline (5) and a second oil pipeline (6) are installed on the oil outlet (4) and the oil inlet (3), respectively. A lubricating oil cooling mechanism (7) is installed between the other end of the first oil pipeline (5) and the other end of the second oil pipeline (6). An oil pump (9) and a lubricating oil filtering mechanism (8) are also installed on the second oil pipeline (6), and the lubricating oil filtering mechanism (8) is installed in front of the oil pump (9). A temperature sensor (13) is installed at the bottom of the generator set gear housing (1), and a temperature controller (12) is installed on the top of the generator set gear housing (1).

2. A generator set lubricating oil monitoring and protection device according to claim 1, characterized in that: The lubricating oil cooling mechanism (7) comprises an outer frame (701), a cooling coil (702) and a fan (703); the cooling coil (702) is installed in the outer frame (701); the bottom end of the cooling coil (702) is connected to the first oil delivery pipe (5); the top end of the cooling coil (702) is connected to the second oil delivery pipe (6); and the fan (703) is installed on the outer frame (701) directly in front of the cooling coil (702).

3. A generator set lubricating oil monitoring and protection device according to claim 1, characterized in that: The lubricating oil filtering mechanism (8) comprises a housing (801), an end cover (802), a filter screen cartridge (803), screws (804) and a sealing ring (805); the two ends of the housing (801) are connected to two sections of the second oil delivery pipe (6); a filter screen cartridge (803) is installed inside the housing (801); the bottom end of the filter screen cartridge (803) is installed with an end cover (802); the end cover (802) and the bottom port of the housing (801) are fixed by screws (804).

4. A generator set lubricating oil monitoring and protection device according to claim 3, characterized in that: A sealing ring (805) is installed between the end cover (802) and the housing (801).

5. The lubricating oil monitoring and protection device for a generator set according to claim 1, characterized in that: The temperature sensor (13) is electrically connected to the temperature controller (12), and the temperature controller (12) is electrically connected to the oil pump (9) and the fan (703).

6. A generator set lubricating oil monitoring and protection device according to claim 1, characterized in that: The first oil delivery pipe (5) is a transparent pipe, and a height scale line (14) is provided on the surface of the first oil delivery pipe (5).

7. A generator set lubricating oil monitoring and protection device according to claim 1, characterized in that: An oil filling pipe (10) is installed on the first oil delivery pipe (5), and a cover body (11) is installed on the pipe opening of the oil filling pipe (10).

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